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Global Experiences on Wastewater Irrigation: Challenges and Prospects

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Balanced Urban Development: Options and Strategies for Liveable Cities

Part of the book series: Water Science and Technology Library ((WSTL,volume 72))

Abstract

The need for irrigated agriculture is growing day by day and the largest water withdrawals from renewable water resources are for irrigation. In addition, the available water resources are decreasing and we need to use non-conventional water resources for irrigation due to looming water crisis (Raschid-Sally and Jayakody, Drivers and characteristics of wastewater agriculture in developing countries: results from a global assessment. International Water Management Institute, Colombo, 35p, (IWMI Research Report 127), 2008). However, the volume of treating and using wastewater is limited due to the lack of adequate data and knowledge and/or negative effects of improper wastewater management (i.e. use of untreated wastewater). A comprehensive evaluation of what has been done is necessary in order to explore wastewater irrigation and to avoid trial-and-error policies. Although a study of wastewater irrigation from crops, soil, groundwater, health, irrigation equipments, modern technologies, and other environmental aspects is useful, management studies in comparison with other aspects can help lead to more reliable and more extensive findings and finally a better decision on using wastewater for irrigation. The chapter presents challenges and prospects that may help decision making for the use of wastewater in irrigation.

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References

  • Abd El Lateef EM, Hall JE, Lawrence PC, Negm MS (2006) Cairo-East Bank effluent re-use study 3 – effect of field crop irrigation with secondary treated wastewater on biological and chemical properties of soil and groundwater. Biologia 61(19):S240–S245

    Google Scholar 

  • Adin A, Sacks M (1991) Dripper-clogging factors in wastewater irrigation. J Irrig Drain Eng 117(6):813–826

    Google Scholar 

  • Adrover M, Farrus E, Moya G, Vadell J (2012) Chemical properties and biological activity in soils of Mallorca following twenty years of treated wastewater irrigation. J Environ Manage 95:S188–S192

    Google Scholar 

  • Afshar A, Marino M (1989) Optimization models for wastewater reuse in irrigation. J Irrig Drain Eng 115(2):185–202

    Google Scholar 

  • Agrafioti E, Diamadopoulos E (2012) A strategic plan for reuse of treated municipal wastewater for crop irrigation on the Island of Crete. Agric Water Manag 105:57–64

    Google Scholar 

  • Agunwamba JC (2001) Analysis of socioeconomic and environmental impacts of waste stabilization pond and unrestricted wastewater irrigation: interface with maintenance. Environ Manage 27(3):463–476

    Google Scholar 

  • Aiello R, Cirelli GL, Consoli S (2007) Effects of reclaimed wastewater irrigation on soil and tomato fruits: a case study in Sicily (Italy). Agric Water Manag 93(1–2):65–72

    Google Scholar 

  • Akber A, Mukhopadhyay A, Al-Senafy M, Al-Haddad A, Al-Awadi E, Al-Qallaf H (2008) Feasibility of long-term irrigation as a treatment method for municipal wastewater using natural soil in Kuwait. Agric Water Manag 95(3):233–242

    Google Scholar 

  • Al-Hamaiedeh H, Bino M (2010) Effect of treated grey water reuse in irrigation on soil and plants. Desalination 256(1–3):115–119

    Google Scholar 

  • Ali-Shtayeh MS, Jamous RMF, Abu-Ghdeib SI (1998) Ecology of cycloheximide-resistant fungi in field soils receiving raw city wastewater or normal irrigation water. Mycopathologia 144(1):39–55

    Google Scholar 

  • Al-Juaidi AE, Kaluarachchi JJ, Kim U (2010) Multi-criteria decision analysis of treated wastewater use for agriculture in water deficit regions. JAWRA J Am Water Resour Assoc 46:395–411

    Google Scholar 

  • Al-Lahham O, El Assi NM, Fayyad M (2003) Impact of treated wastewater irrigation on quality attributes and contamination of tomato fruit. Agric Water Manag 61(6):51–62

    Google Scholar 

  • Al-Nakshabandi GA, Saqqar MM, Shatanawi MR, Fayyad M, Al-Horani H (1997) Some environmental problems associated with the use of treated wastewater for irrigation in Jordan. Agric Water Manag 34(1):81–94

    Google Scholar 

  • Al-Shammiri M, Al-Saffar A, Bohamad S, Ahmed M (2005) Waste water quality and reuse in irrigation in Kuwait using microfiltration technology in treatment. Desalination 185(1–3):213–225

    Google Scholar 

  • An Y-J, Yoon CG, Jung K-W, Ham J-H (2007) Estimating the microbial risk of E. coli in reclaimed wastewater irrigation on paddy field. Environ Monit Assess 129(1–3):53–60

    Google Scholar 

  • Angelakis AN, Durham B (2008) Water recycling and reuse in EUREAU countries: trends and challenges. Desalination 218(1–3):3–12

    Google Scholar 

  • Angelakis AN, Marecos Do Monte MHF, Bontoux L, Asano T (1999) The status of wastewater reuse practice in the Mediterranean basin: need for guidelines. Water Res 33(10):2201–2217

    Google Scholar 

  • Axelrad G, Feinerman E (2009) Regional planning of wastewater reuse for irrigation and river rehabilitation. J Agric Econ 60:105–131

    Google Scholar 

  • Baghapour MA, Nasseri S, Djahed B (2013) Evaluation of Shiraz wastewater treatment plant effluent quality for agricultural irrigation by Canadian Water Quality Index (CWQI). J Environ Sci Health 10:27

    Google Scholar 

  • Bakopoulou S, Vasiloglou V, Kungolos A (2012) A multicriteria analysis application for evaluating the possibility of reusing wastewater for irrigation purposes in a Greek region, Desalin. Water Treat 39(1–3):262–270

    Google Scholar 

  • Banon S, Miralles J, Ochoa J, Franco JA, Sanchez-Blanco MJ (2011) Effects of diluted and undiluted treated wastewater on the growth, physiological aspects and visual quality of potted lantana and polygala plants. Sci Hortic 129(4):869–876

    Google Scholar 

  • Battilani A, Steiner M, Andersen M, Back SN, Lorenzen J, Schweitzer A, Dalsgaard A, Forslund A, Gola S, Klopmann W, Plauborg F, Andersen MN (2010) Decentralised water and wastewater treatment technologies to produce functional water for irrigation. Agric Water Manag 98(3):385–402

    Google Scholar 

  • Bdour AN, Hamdi MR, Tarawneh Z (2009) Perspectives on sustainable wastewater treatment technologies and reuse options in the urban areas of the Mediterranean region. Desalination 237(1–3):162–174

    Google Scholar 

  • Bedbabis S, Ferrara G, Ben Rouina B, Boukhris M (2010a) Effects of irrigation with treated wastewater on olive tree growth, yield and leaf mineral elements at short term. Sci Hortic 126(3):345–350

    Google Scholar 

  • Bedbabis S, Ferrara G, Ben Rouina B, Boukhris M (2010b) The effect of waste water irrigation on the extra virgin olive oil quality from the Tunisian cultivar Chemlali. Sci Hortic 125(4):556–561

    Google Scholar 

  • Bhamoriya V (2004) Wastewater irrigation in Vadodara. Economic Catalyst for Marginalised Communities, Gujarat

    Google Scholar 

  • Bichai F, Polo-Lopez MI, Ibanez PF (2013) Solar disinfection of wastewater to reduce contamination of lettuce crops by Escherichia coli in reclaimed water irrigation. Water Res 46(18):6040–6050

    Google Scholar 

  • Bixio D, Thoeye C, De Koning J, Joksimovic D, Savic D, Wintgens T, Melin T (2006) Wastewater reuse in Europe. Desalination 187(1–3):89–101

    Google Scholar 

  • Bouri S, Abida H, Khanfir H (2008) Impacts of wastewater irrigation in arid and semi arid regions: case of Sidi Abid region. Tunis Environ Geol 53(7):1421–1432

    Google Scholar 

  • Buechler SJ (2004) A sustainable livelihoods approach for action research on wastewater use in agriculture, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Candela L, Fabregat S, Josa A, Suriol J, Vigues N, Mas J (2007) Assessment of soil and groundwater impacts by treated urban wastewater reuse. A case study: application in a golf course (Girona, Spain). Sci Total Environ 374(1):26–35

    Google Scholar 

  • Capra A, Scicolone B (2007) Recycling of poor quality urban wastewater by drip irrigation systems. J Clean Prod 15(16):1529–1534

    Google Scholar 

  • Carr RM, Blumenthal UJ, Mara DD (2004) Health guidelines for use of wastewater in agriculture: developing realistic guidelines, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Carr G, Potter RB, Nortcliff S (2011) Water reuse for irrigation in Jordan: perceptions of water quality among farmers. Agric Water Manag 98(5):847–854

    Google Scholar 

  • Chavez A, Rodas K, Prado B, Thompson R, Jimenez B (2012) An evaluation of the effects of changing wastewater irrigation regime for the production of alfalfa (Medicago sativa). Agric Water Manag 113:76–84

    Google Scholar 

  • Chen J, Tang C, Yu J (2006) Use of 18O, 2H and 15N to identify nitrate contamination of groundwater in a wastewater irrigated field near the city of Shijiazhuang, China. J Hydrol 326(1–4):367–378

    Google Scholar 

  • Chiou R-J (2008) Risk assessment and loading capacity of reclaimed wastewater to be reused for agricultural irrigation. Environ Monit Assess 142(1–3):255–262

    Google Scholar 

  • Chung NJ, Cho JY, Park SW, Park BJ, Hwang SA, Park TI (2008) Polycyclic aromatic hydrocarbons in soils and crops after irrigation of wastewater discharged from domestic sewage treatment plants. Bull Environ Contam Toxicol 81(2):124–127

    Google Scholar 

  • Chung BY, Song CH, Park BJ, Cho JY (2011) Heavy metals in brown rice (Oryza sativa L.) and soil after long-term irrigation of wastewater discharged from domestic sewage treatment plants. Pedosphere 21(5):621–627

    Google Scholar 

  • Cirelli GL, Consoli S, Licciardello F, Aiello R, Giuffrida F, Leonardi C (2012) Treated municipal wastewater reuse in vegetable production. Agric Water Manag 104:163–170

    Google Scholar 

  • Coppola A, Santini A, Botti P, Vacca S, Comegna V, Severino G (2004) Methodological approach for evaluating the response of soil hydrological behavior to irrigation with treated municipal wastewater. J Hydrol 292(1–4):114–134

    Google Scholar 

  • Cornish GA, Kielen NC (2004) Wastewater irrigation – hazard or lifeline? Empirical Results from Nairobi, Kenya and Kumasi, Ghana

    Google Scholar 

  • de Oliveira Marinho LE, Tonetti AL, Stefanutti R, Filho BC (2013) Application of reclaimed wastewater in the irrigation of rosebushes. Water Air Soil Pollut 224:1669

    Google Scholar 

  • de Paula AM, da Fonseca AF, Cardoso EJBN, Melfi AJ (2010) Microbial metabolic potential affected by surplus wastewater irrigation in tropical soil cultivated with Tifton 85 Bermuda grass (Cynodon dactylon Pers. X C. niemfuensis Vanderyst). Water Air Soil Pollut 205(1–4):161–171

    Google Scholar 

  • Doll P, Hoffmann-Dobrev H, Portmann FT, Siebert S, Eicker A, Rodell M, Strassberg G, Scanlon BR (2012) Impact of water withdrawals from groundwater and surface water on continental water storage variations. J Geodyn 59–60:143–156

    Google Scholar 

  • Dominguez F (2010) Water scarcity: can virtual water operators help? Util Policy 18(3):129–134

    Google Scholar 

  • Egwu GN, Agbenin JO (2013) Lead enrichment, adsorption and speciation in urban garden soils under long-term wastewater irrigation in northern Nigeria. Environ Earth Sci 69(6):1861–1870

    Google Scholar 

  • El-Gohary FA, Nasr FA, El-Hawaary S (1998) Performance assessment of a wastewater treatment plant producing effluent for irrigation in Egypt. Environmentalist 18(2):87–93

    Google Scholar 

  • Elifantz H, Kautsky L, Mor-Yosef M, Tarchitzky J, Bar-Tal A, Chen Y, Minz D (2011) Microbial activity and organic matter dynamics during 4 years of irrigation with treated wastewater. Microb Ecol 62(4):973–981

    Google Scholar 

  • Ensink JHJ, van der Hoek W, Amerasinghe FP (2006) Giardia duodenalis infection and wastewater irrigation in Pakistan. Trans R Soc Trop Med Hyg 100(6):538–542

    Google Scholar 

  • Esteller M, Morell I, Almeida C (2001) Physico-chemical processes in a vadose zone during the infiltration of treated wastewater used for irrigation: application of the NETPATH model. Environ Geol 40(7):923–930

    Google Scholar 

  • Evcimen S, Kerc A (2011) Application of UV disinfection in municipal wastewater treatment plants for agricultural use of reclaimed wastewater in Turkey. Desalin Water Treat 26(1–3):39–44

    Google Scholar 

  • Evett SR, Zalesny RS Jr, Kandil NF, Stanturf JA, Soriano C (2011) Opportunities for woody crop production using treated wastewater in Egypt. II. Irrigation strategies. Int J Phytoremediat 13(Supp1):122–139

    Google Scholar 

  • FAO (1992) Wastewater treatment and use in agriculture – FAO irrigation and drainage paper 47. Food and Agriculture Organization of the United Nations. Italy. ISBN 92-5-103135-5

    Google Scholar 

  • FAO (2013) AQUASTAT database. http://fao.org

  • Fatta D, Salem Z, Mountadar M, Assobhei O, Loizidou M (2004) Urban wastewater treatment and reclamation for agricultural irrigation: the situation in Morocco and Palestine. Environmentalist 24(4):227–236

    Google Scholar 

  • Fatta-Kassinos D, Kalavrouziotis IK, Koukoulakis PH, Vasquez MI (2011) The risks associated with wastewater reuse and xenobiotics in the agroecological environment. Sci Total Environ 409(19):3555–3563

    Google Scholar 

  • Fattal B, Lampert Y, Shuval H (2004) A fresh look at microbial guidelines for wastewater irrigation in agriculture: a risk-assessment and cost-effectiveness approach, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Fischer G, Tubiello FN, van Velthuizen H, Wiberg DA (2007) Climate change impacts on irrigation water requirements: effects of mitigation, 1990–2080. Technol Forecast Soc Chang 74(7):1083–1107

    Google Scholar 

  • Forslund A, Ensink JHJ, Battilani A, Kljujev I, Gola S, Raicevic V, Jovanovic Z, Stikic R, Sandei L, Fletcher T, Dalsgaard A (2010) Faecal contamination and hygiene aspect associated with the use of treated wastewater and canal water for irrigation of potatoes (Solanum tuberosum). Agric Water Manag 98(3):440–450

    Google Scholar 

  • Gamri S, Soric A, Tomas S, Molle B, Roche N (2013) Biofilm development in micro-irrigation emitters for wastewater reuse. Irrig Sci. doi:10.1007/s00271-013-0414-0

    Article  Google Scholar 

  • Gatica J, Cytryn E (2013) Impact of treated wastewater irrigation on antibiotic resistance in the soil microbiome. Environ Sci Pollut Res 20:3529–3538

    Google Scholar 

  • Green TR, Taniguchi M, Kooi H, Gurdak JJ, Allen DM, Hiscock KM, Treidel H, Aureli A (2011) Beneath the surface of global change: impacts of climate change on groundwater. J Hydrol 405(3–4):532–560

    Google Scholar 

  • Gupta S, Satpati S, Nayek S, Garai D (2010) Effect of wastewater irrigation on vegetables in relation to bioaccumulation of heavy metals and biochemical changes. Environ Monit Assess 165(1–4):169–177

    Google Scholar 

  • Hanjra MA, Blackwell J, Carr G, Zhang F, Jackson TM (2012) Wastewater irrigation and environmental health: implications for water governance and public policy. Int J Hyg Environ Health 215(3):255–269

    Google Scholar 

  • Haruvy N, Offer R, Hadas A, Ravina I (1999) Wastewater irrigation-economic concerns regarding beneficiary and hazardous effects of nutrients. Water Resour Manag 13(5):303–314

    Google Scholar 

  • Heidarian Z, Hafezi Moghadas N, Nedaie S (2011) Effect of Alghadie dam on quantity groundwater resources of Saveh plain. In: The 7th Iranian conference of engineering geology and the environment. Shahroud, Iran

    Google Scholar 

  • Heidarpour M, Mostafazadeh-Fard B, Abedi Koupai J, Malekian R (2007) The effects of treated wastewater on soil chemical properties using subsurface and surface irrigation methods. Agric Water Manag 90(1–2):87–94

    Google Scholar 

  • Hirich A, Choukr-Allah R, Jacobsen S-E (2013) The combined effect of deficit irrigation by treated wastewater and organic amendment on quinoa (Chenopodium quinoa Willd.) productivity. Desalin Water Treat. doi:10.1080/19443994.2013.777944

    Article  Google Scholar 

  • Hogg TJ, Tollefson LC, Weiterman G (1997) Effluent irrigation: the Saskatchewan perspective. Can Water Resour J 22(4):445–455

    Google Scholar 

  • Howe J, Wagner MR (1996) The effect of papermill wastewater irrigation and gypsum soil amendments on sodium accumulation by cottonwood and soil. Agric Water Manag 31(3):295–306

    Google Scholar 

  • Hseu Z-Y, Su S-W, Lai H-Y, Guo H-Y, Chen T-C, Chen Z-S (2010) Remediation techniques and heavy metal uptake by different rice varieties in metal-contaminated soils of Taiwan: new aspects for food safety regulation and sustainable agriculture. Soil Sci Plant Nutr 56(1):31–52

    Google Scholar 

  • Huibers FP, Moscoso O, Duran A, van Lier JB (2004) The use of wastewater in Cochabamba. A Degrading Environment, Bolivia

    Google Scholar 

  • Hunt PG, Stone KC, Matheny TA, Vanotti MB, Szogi AA, Busscher WJ (2011) Double-cropped soybean and wheat with subsurface drip irrigation supplemented by treated swine wastewater. Commun Soil Sci Plant 42(22):2778–2794

    Google Scholar 

  • Hussain G, Al-Saati AJ (1999) Wastewater quality and its reuse in agriculture in Saudi Arabia. Desalination 123(2–3):241–251

    Google Scholar 

  • Hussain I, Raschid L, Hanjra MA, Marikar F, Hoek W (2001) A framework for analysing socioeconomic, health and environmental impacts of wastewater use in agriculture in developing countries. IWMI Working Paper, (26). International Water Management Institute. http://www.iwmi.cgiar.org/Publications/Working_Papers/working/WOR26.pdf

  • Hussain I, Raschid-Sally L, Hanjra MA, Marikar F, Van Der Hoek W (2002) Wastewater use in agriculture: review of impacts and methodological issues in valuing impacts. International Water Management Institute, Colombo, IWMI Working Paper, no. 37. http://hdl.handle.net/10535/4846

    Google Scholar 

  • Irenikatche Akponikpe PB, Wima K, Yacouba H, Mermoud A (2011) Reuse of domestic wastewater treated in macrophyte ponds to irrigate tomato and eggplant in semi-arid West-Africa: benefits and risks. Agric Water Manag 98(5):834–840

    Google Scholar 

  • Jaber JO, Mohsen MS (2001) Evaluation of non-conventional water resources supply in Jordan. Desalination 136(1–3):83–92

    Google Scholar 

  • Jalali M, Merikhpour H, Kaledhonkar MJ, Van Der Zee SEATM (2008) Effects of wastewater irrigation on soil sodicity and nutrient leaching in calcareous soils. Agric Water Manag 95(2):143–153

    Google Scholar 

  • Jang T, Jung M, Lee E, Park S, Lee J, Jeong H (2013) Assessing environmental impacts of reclaimed wastewater irrigation in paddy fields using bioindicator. Irrig Sci 31(5):1225–1236

    Google Scholar 

  • Jeison D, Chamy R, Salgado E (2003) Anaerobically treated wastewater in agricultural irrigation as an alternative for posttreatment in water-demanding zones. Appl Biochem Biotechnol 109(1–3):197–206

    Google Scholar 

  • Jia Z, Evans R, Smith J (2006) Effect of controlled drainage and vegetative buffers on drainage water quality from wastewater irrigated fields. J Irrig Drain Eng 132(2):159–170

    Google Scholar 

  • Jimenez B (2005) Treatment technology and standards for agricultural wastewater reuse: a case study in Mexico. Irrig Drain 54:S23–S33

    Google Scholar 

  • Kass A, Gavrieli I, Yechieli Y, Vengosh A, Starinsky A (2005) The impact of freshwater and wastewater irrigation on the chemistry of shallow groundwater: a case study from the Israeli Coastal Aquifer. J Hydrol 300(1–4):314–331

    Google Scholar 

  • Katzenelson E, Buium I, Shuval HI (1976) Risk of communicable disease infection associated with wastewater irrigation in agricultural settlements. Science 194(4268):944–946

    Google Scholar 

  • Kayikcioglu HH (2012) Short-term effects of irrigation with treated domestic wastewater on microbiological activity of a Vertic xerofluvent soil under Mediterranean conditions. J Environ Manage 102:108–114

    Google Scholar 

  • Keraita B, Konradsen F, Drechsel P, Abaidoo RC (2007a) Effect of low-cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater. Trop Med Int Health 12:15–22

    Google Scholar 

  • Keraita B, Konradsen F, Drechsel P, Abaidoo RC (2007b) Reducing microbial contamination on wastewater-irrigated lettuce by cessation of irrigation before harvesting. Trop Med Int Health 12:8–14

    Google Scholar 

  • Keser G (2013) Effects of irrigation with wastewater on the physiological properties and heavy metal content in Lepidium sativum L. and Eruca sativa (Mill.). Environ Monit Assess 185(7):6209–6217

    Google Scholar 

  • Keser G, Buyuk G (2012) Effects of wastewater irrigation on chemical and physical properties of Petroselinum crispum. Biol Trace Elem Res 146(3):369–375

    Google Scholar 

  • Khan S, Cao Q, Zheng YM, Huang YZ, Zhu YG (2008) Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing. China Environ Pollut 152(3):686–692

    Google Scholar 

  • Khan MU, Malik RN, Muhammad S (2013) Human health risk from heavy metal via food crops consumption with wastewater irrigation practices in Pakistan. Chemosphere. doi:10.1016/j.chemosphere.2013.07.067

    Article  Google Scholar 

  • Kivaisi AK (2001) The potential for constructed wetlands for wastewater treatment and reuse in developing countries: a review. Ecol Eng 16(4):545–560

    Google Scholar 

  • Kiziloglu FM, Turan M, Sahin U, Angin I, Anapali O, Okuroglu M (2007) Effects of wastewater irrigation on soil and cabbage-plant (brassica olerecea var. capitate cv. yalova-1) chemical properties. Z Pflanzenernaehr Bodenkd 170:166–172

    Google Scholar 

  • Kiziloglu FM, Turan M, Sahin U, Kuslu Y, Dursun A (2008) Effects of untreated and treated wastewater irrigation on some chemical properties of cauliflower (Brassica olerecea L. var. botrytis) and red cabbage (Brassica olerecea L. var. rubra) grown on calcareous soil in Turkey. Agric Water Manag 95(6):716–724

    Google Scholar 

  • Klay S, Charef A, Ayed L, Houman B, Rezgui F (2010) Effect of irrigation with treated wastewater on geochemical properties (saltiness, C, N and heavy metals) of isohumic soils (Zaouit Sousse perimeter, Oriental Tunisia). Desalination 253(1–3):180–187

    Google Scholar 

  • Lado M, Ben-Hur M (2009) Treated domestic sewage irrigation effects on soil hydraulic properties in arid and semiarid zones: a review. Soil Tillage Res 106(1):152–163

    Google Scholar 

  • Laposata MM, Dunson WA (2000) Effects of treated wastewater effluent irrigation on terrestrial salamanders. Water Air Soil Pollut 119(1–4):45–57

    Google Scholar 

  • Laurenson S, Bolan NS, Smith E, McCarthy M (2012) Review: use of recycled wastewater for irrigating grapevines. Aust J Grape Wine R 18:1–10

    Google Scholar 

  • Li F, Wichmann K, Otterpohl R (2009) Review of the technological approaches for grey water treatment and reuses. Sci Total Environ 407(11):3439–3449

    Google Scholar 

  • Li YK, Liu YZ, Li GB, Xu TW, Liu HS, Ren SM, Yan DZ, Yang PL (2012) Surface topographic characteristics of suspended particulates in reclaimed wastewater and effects on clogging in labyrinth drip irrigation emitters. Irrig Sci 30(1):43–56

    Google Scholar 

  • Liberti L, Notarnicola M, Petruzzelli D (2002) Advanced treatment for municipal wastewater reuse in agriculture. UV disinfection: parasite removal and by-product formation. Desalination 152(1–3):315–324

    Google Scholar 

  • Liu H, Huang G (2009) Laboratory experiment on drip emitter clogging with fresh water and treated sewage effluent. Agric Water Manag 96(5):745–756

    Google Scholar 

  • Lopez A, Vurro M (2008) Planning agricultural wastewater reuse in southern Italy: the case of Apulia region. Desalination 218(1–3):164–169

    Google Scholar 

  • Lopez A, Pollice A, Lonigro A, Masi S, Palese AM, Cirelli GL, Toscano A, Passino R (2006) Agricultural wastewater reuse in southern Italy. Desalination 187(1–3):323–334

    Google Scholar 

  • Loutfy N, Mosleh Y, Ahmed MT (2010) Dioxin, Dioxin–like PCBs and indicator PCBs in some medicinal plants irrigated with wastewater in Ismailia. Egypt Polycycl Aromat Compd 30(1):9–26

    Google Scholar 

  • Lubello C, Gori R, Nicese FP, Ferrini F (2004) Municipal-treated wastewater reuse for plant nurseries irrigation. Water Res 38(12):2939–2947

    Google Scholar 

  • Mahdizadeh Khasraghi M, Gholami Sefidkouhi MA, Valipour M (2015) Simulation of open- and closed-end border irrigation systems using SIRMOD. Arch Agron Soil Sci 61(7):929–941

    Google Scholar 

  • Martijn E-J, Redwood M (2005) Wastewater irrigation in developing countries—limitations for farmers to adopt appropriate practices. Irrig Drain 54:S63–S70

    Google Scholar 

  • McNeill LS, Almasri MN, Mizyed N (2009) A sustainable approach for reusing treated wastewater in agricultural irrigation in the West Bank – Palestine. Desalination 248(1–3):315–321

    Google Scholar 

  • Mojid MA, Wyseure GCL (2013) Implications of municipal wastewater irrigation on soil health from a study in Bangladesh. Soil Use Manag 29:384–396

    Google Scholar 

  • Mojid MA, Wyseure GCL, Biswas SK, Hossain ABMZ (2010) Farmers’ perceptions and knowledge in using wastewater for irrigation at twelve peri-urban areas and two sugar mill areas in Bangladesh. Agric Water Manag 98(1):79–86

    Google Scholar 

  • Mojid MA, Biswas SK, Wyseure GCL (2012) Interaction effects of irrigation by municipal wastewater and inorganic fertilisers on wheat cultivation in Bangladesh. Field Crop Res 134:200–207

    Google Scholar 

  • Molle B, Brelle F, Bessy J, Gatel D (2012) Which water quality for which uses? Overcoming over-zealous use of the precautionary principle to reclaim wastewater for appropriate irrigation uses. Irrig Drain 61:87–94

    Google Scholar 

  • Mooers HD, Alexander EC Jr (1994) Contribution of spray irrigation of wastewater to groundwater contamination in the karst of southeastern Minnesota. USA Appl Hydrogeol 2(1):34–44

    Google Scholar 

  • Moradmand M, Beigi Harchegani H (2011) Treated municipal wastewater irrigation effect on lead content and health risks of nickel in soil and pepper in Shahrekord. Iran Desalin Water Treat 28(1–3):42–45

    Google Scholar 

  • Moraetis D, Stamati FE, Nikolaidis NP, Kalogerakis N (2011) Olive mill wastewater irrigation of maize: impacts on soil and groundwater. Agric Water Manag 7(15):1125–1132

    Google Scholar 

  • Morari F, Giardini L (2009) Municipal wastewater treatment with vertical flow constructed wetlands for irrigation reuse. Ecol Eng 35(5):643–653

    Google Scholar 

  • Morugan-Coronado A, Garcia-Orenes F, Mataix-Solera J, Arcenegui V, Mataix-Beneyto J (2011) Short-term effects of treated wastewater irrigation on Mediterranean calcareous soil. Soil Tillage Res 112(1):18–26

    Google Scholar 

  • Murillo JM, Lopez R, Fernandez JE, Cabrera F (2000) Olive tree response to irrigation with wastewater from the table olive industry. Irrig Sci 19(4):175–180

    Google Scholar 

  • Murray A, Ray I (2010) Wastewater for agriculture: a reuse-oriented planning model and its application in peri-urban China. Water Res 44(5):1667–1679

    Google Scholar 

  • Mutengu S, Hoko Z, Makoni FS (2007) An assessment of the public health hazard potential of wastewater reuse for crop production. A case of Bulawayo city. Zimb Phys Chem Earth 32(15–18):1195–1203

    Google Scholar 

  • Muyen Z, Moore GA, Wrigley RJ (2011) Soil salinity and sodicity effects of wastewater irrigation in South East Australia. Agric Water Manag 99(1):33–41

    Google Scholar 

  • Nadav I, Tarchitzky J, Chen Y (2013) Induction of soil water repellency following irrigation with treated wastewater: effects of irrigation water quality and soil texture. Irrig Sci 31(3):385–394

    Google Scholar 

  • Norton-Brandao D, Scherrenberg SM, van Lier JB (2013) Reclamation of used urban waters for irrigation purposes – a review of treatment technologies. J Environ Manage 122:85–98

    Google Scholar 

  • Oron G, DeMalach Y (1987) Response of cotton to treated domestic wastewater applied through trickle irrigation. Irrig Sci 8(4):291–300

    Google Scholar 

  • Owusu V, Andivi Bakang J-E, Abaidoo RC, Kinane ML (2012) Perception on untreated wastewater irrigation for vegetable production in Ghana. Environ Dev Sustain 14(1):135–150

    Google Scholar 

  • Palese AM, Pasquale V, Celano G, Figliuolo G, Masi S, Xiloyannis C (2009) Irrigation of olive groves in Southern Italy with treated municipal wastewater: effects on microbiological quality of soil and fruits. Agr Ecosyst Environ 129(1–3):43–51

    Google Scholar 

  • Pedrero F, Alarcon JJ (2009) Effects of treated wastewater irrigation on lemon trees. Desalination 246(1–3):631–639

    Google Scholar 

  • Pedrero F, Kalavrouziotis I, Alarcon JJ, Koukoulakis P, Asano T (2010) Use of treated municipal wastewater in irrigated agriculture—review of some practices in Spain and Greece. Agric Water Manag 97(9):1233–1241

    Google Scholar 

  • Pereira BFF, He ZL, Stoffella PJ, Melfi AJ (2011) Reclaimed wastewater: effects on citrus nutrition. Agric Water Manag 98(12):1828–1833

    Google Scholar 

  • Puig-Bargues J, Arbat G, Elbana M, Duran-Ros M, Barragan J, de Cartagena FR, Lamm FR (2010) Effect of flushing frequency on emitter clogging in microirrigation with effluents. Agric Water Manag 97(6):883–891

    Google Scholar 

  • Qadir M, Sharma BR, Bruggeman A, Choukr-Allah R, Karajeh F (2007) Non-conventional water resources and opportunities for water augmentation to achieve food security in water scarce countries. Agric Water Manag 87(1):2–22

    Google Scholar 

  • Qadir M, Wichelns D, Raschid-Sally L, McCornick PG, Drechsel P, Bahri A, Minhas PS (2010) The challenges of wastewater irrigation in developing countries. Agric Water Manag 97(4):561–568

    Google Scholar 

  • Qishlaqi A, Moore F (2006) Impacts of wastewater irrigation on soils and crops in suburban area of Shiraz, Iran. Chin J Geochem 25(1):214

    Google Scholar 

  • Raschid-Sally L, Jayakody P (2008) Drivers and characteristics of wastewater agriculture in developing countries: results from a global assessment. International Water Management Institute, Colombo. 35p. (IWMI Research Report 127)

    Google Scholar 

  • Rebhun M (2004) Desalination of reclaimed wastewater to prevent salinization of soils and groundwater. Desalination 160(2):143–149

    Google Scholar 

  • Redondo JA, Lomax I (1997) Experiences with the pretreatment of raw water with high fouling potential for reverse osmosis plant using FILMTEC membranes. Desalination 110(1–2):167–182

    Google Scholar 

  • Rezapour S, Samadi A (2011) Soil quality response to long-term wastewater irrigation in Inceptisols from a semi-arid environment. Nutr Cycl Agroecosyst 91(3):269–280

    Google Scholar 

  • Rezapour S, Samadi A, Khodaverdiloo H (2011) An investigation of the soil property changes and heavy metal accumulation in relation to long-term wastewater irrigation in the semi-arid region of Iran. Soil Sediment Contam 20(7):841–856

    Google Scholar 

  • Rezapour S, Samadi A, Khodaverdiloo H (2012) Impact of long-term wastewater irrigation on variability of soil attributes along a landscape in semi-arid region of Iran. Environ Earth Sci 67(6):1713–1723

    Google Scholar 

  • Rijsberman FR (2006) Water scarcity: fact or fiction? Agric Water Manag 80(1–3):5–22

    Google Scholar 

  • Ringler C, Rosegrant MW, Paisner, Michael S (2000) Irrigation and water resources in Latin America and the Caribbean: challenges and strategies. Environment and Production Technology Division. International Food Policy Research Institute, Washington, DC

    Google Scholar 

  • Rojas-Valencia MN, Orta de Velasquez MT, Franco V (2011) Urban agriculture, using sustainable practices that involve the reuse of wastewater and solid waste. Agric Water Manag 98(9):1388–1394

    Google Scholar 

  • Rosenqvist H, Dawson M (2005) Economics of using wastewater irrigation of willow in Northern Ireland. Biomass Bioenerg 29(2):83–92

    Google Scholar 

  • Rosenqvist H, Aronsson P, Hasselgren K, Perttu K (1997) Economics of using municipal wastewater irrigation of willow coppice crops. Biomass Bioenerg 12(1):1–8

    Google Scholar 

  • Rusan MJM, Hinnawi S, Rousan L (2007) Long term effect of wastewater irrigation of forage crops on soil and plant quality parameters. Desalination 215(1–3):143–152

    Google Scholar 

  • Rutkowski T, Raschid-Sally L, Buechler S (2007) Wastewater irrigation in the developing world—two case studies from the Kathmandu Valley in Nepal. Agric Water Manag 88(1–3):83–91

    Google Scholar 

  • Samia K, Abdelkarim C, Yassin H, Teruo H (2012) The effect of long-term soil irrigation by wastewater on organic matter, polycyclic aromatic hydrocarbons, and heavy metals evolution: case study of Zaouit Sousse (Tunisia). Arab J Geosci. doi:10.1007/s12517-012-0666-7

    Article  Google Scholar 

  • Sato T, Qadir M, Yamamoto S, Endo T, Zahoor A (2013) Global, regional, and country level need for data on wastewater generation, treatment, and use. Agric Water Manag 130:1–13

    Google Scholar 

  • Sayed WF (2003) Effects of land irrigation with partially-treated wastewater on Frankia survival and infectivity. Plant Soil 254(1):19–25

    Google Scholar 

  • Scheierling SM, Bartone CR, Mara DD, Drechsel P (2011) Towards an agenda for improving wastewater use in agriculture. Water Int 36(4):420–440

    Google Scholar 

  • Scott CA, Faruqui NI, Raschid-Sally L (2004) Wastewater use in irrigated agriculture: management challenges in developing countries, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Scott CA, Drechsel P, Raschid-Sally L, Bahri A, Mara D, Redwood M, Jimenez B (2010) Wastewater irrigation and health: challenges and outlook for mitigating risks in low-income countries, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Segarra E, Darwish MR, Ethridge DE (1996) Returns to municipalities from integrating crop production with wastewater disposal. Resour Conserv Recycl 17(2):97–107

    Google Scholar 

  • Shahalam A, Abu Zahra BM, Jaradat A (1998) Wastewater irrigation effect on soil, crop and environment: a pilot scale study at Irbid, Jordan. Water Air Soil Pollut 106(3–4):425–445

    Google Scholar 

  • Shetty S (2004) Treated wastewater use in Tunisia: lessons learned and the road ahead, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Shi Y, Gao L, Li W, Liu J, Cai Y (2012) Investigation of fluoroquinolones, sulfonamides and macrolides in long-term wastewater irrigation soil in Tianjin. China B Environ Contam Toxicol 89(4):857–861

    Google Scholar 

  • Siebert S, Burke J, Faures JM, Frenken K, Hoogeveen J, Doll P, Portmann FT (2010) Groundwater use for irrigation – a global inventory. Hydrol Earth Syst Sci 7:3977–4021

    Google Scholar 

  • Singh PK, Deshbhratar PB, Ramteke DS (2012) Effects of sewage wastewater irrigation on soil properties, crop yield and environment. Agric Water Manag 103:100–104

    Google Scholar 

  • Siracusa G, La Rosa AD (2006) Design of a constructed wetland for wastewater treatment in a Sicilian town and environmental evaluation using the energy analysis. Ecol Model 197(3–4):490–497

    Google Scholar 

  • Stockholm Environment Institute (2005) Sustainable pathways to attain the millennium development goals – assessing the key role of water, energy and sanitation, Stockholm Environment Institute, Sweden.

    Google Scholar 

  • Stumpe B, Marschner B (2007) Long-term sewage sludge application and wastewater irrigation on the mineralization and sorption of 17β-estradiol and testosterone in soils. Sci Total Environ 374(2–3):282–291

    Google Scholar 

  • Tarchouna LG, Merdy P, Raynaud M, Pfeifer H-R, Lucas Y (2010) Effects of long-term irrigation with treated wastewater. Part I: Evolution of soil physico-chemical properties. Appl Geochem 25(11):1703–1710

    Google Scholar 

  • Tassoula A (2011) An assessment of microbiological quality criteria for reuse of treated wastewater in agricultural irrigation. Desalin Water Treat 33(1–3):164–171

    Google Scholar 

  • Toze S (2006) Reuse of effluent water—benefits and risks. Agric Water Manag 80(1–3):147–159

    Google Scholar 

  • Trinh LT, Duong CC, Van Der Steen P, Lens PNL (2013) Exploring the potential for wastewater reuse in agriculture as a climate change adaptation measure for Can Tho City. Vietnam Agric Water Manag 128:43–54

    Google Scholar 

  • Valipour M (2012a) Sprinkle and trickle irrigation system design using tapered pipes for pressure loss adjusting. J Agric Sci 4(12):125–133

    Google Scholar 

  • Valipour M (2012b) Comparison of surface irrigation simulation models: full hydrodynamic, zero inertia, kinematic wave. J Agric Sci 4(12):68–74

    Google Scholar 

  • Valipour M (2012c) Critical areas of Iran for agriculture water management according to the annual rainfall. Eur J Sci Res 84(4):600–608

    Google Scholar 

  • Valipour M (2014a) Future of the area equipped for irrigation. Arch Agron Soil Sci 60:1641–1660

    Google Scholar 

  • Valipour M (2014b) Drainage, waterlogging, salinity. Arch Agron Soil Sci 60:1625–1640

    Google Scholar 

  • Valipour M (2014c) Use of average data of 181 synoptic stations for estimation of reference crop evapotranspiration by temperature-based methods. Water Resour Manag 28(12):4237–4255

    Google Scholar 

  • Valipour M (2015a) Investigation of Valiantzas’ evapotranspiration equation in Iran. Theor Appl Climatol 121(1–2):267–278

    Google Scholar 

  • Valipour M (2015b) Comparative evaluation of radiation-based methods for estimation of potential evapotranspiration. J Hydrol Eng 20(5):04014068

    Google Scholar 

  • Valipour M (2015c) Long-term runoff study using SARIMA and ARIMA models in the United States. Meteorol Appl 22(3):592–598

    Google Scholar 

  • Valipour M (2015d) Temperature analysis of reference evapotranspiration models. Meteorol Appl 22(3):385–394

    Google Scholar 

  • Valipour M (2015e) Evaluation of radiation methods to study potential evapotranspiration of 31 provinces. Meteorol Atmos Phys 127(3):289–303

    Google Scholar 

  • Valipour M (2015f) Study of different climatic conditions to assess the role of solar radiation in reference crop evapotranspiration equations. Arch Agron Soil Sci 61(5):679–694

    Google Scholar 

  • Valipour M (2015g) Importance of solar radiation, temperature, relative humidity, and wind speed for calculation of reference evapotranspiration. Arch Agron Soil Sci 61(2):239–255

    Google Scholar 

  • Valipour M (2015h) A comprehensive study on irrigation management in Asia and Oceania. Arch Agron Soil Sci 61(9):1247–1271

    Google Scholar 

  • Valipour M (2015i) Future of agricultural water management in Africa. Arch Agron Soil Sci 61(7):907–927

    Google Scholar 

  • Valipour M (2016a) Optimization of neural networks for precipitation analysis in a humid region to detect drought and wet year alarms. Meteorol Appl 23(1):91–100

    Google Scholar 

  • Valipour M (2016b) Variations of land use and irrigation in Americas for next decades under different scenarios. Irriga (In Press)

    Google Scholar 

  • Valipour M, Banihabib ME, Behbahani SMR (2012) Parameters estimate of autoregressive moving average and autoregressive integrated moving average models and compare their ability for inflow forecasting. J Math Stat 8(3):330–338

    Google Scholar 

  • Valipour M, Banihabib ME, Behbahani SMR (2013) Comparison of the ARMA, ARIMA, and the autoregressive artificial neural network models in forecasting the monthly inflow of Dez dam reservoir. J Hydrol 476:433–441

    Google Scholar 

  • Valipour M, Eslamian S (2014) Analysis of potential evapotranspiration using 11 modified temperature-based models. Int J Hydrol Sci Technol 4(3):192–207

    Google Scholar 

  • Valipour M, Gholami Sefidkouhi MA, Eslamian S (2015) Surface irrigation simulation models: a review. Int J Hydrol Sci Technol 5(1):51–70

    Google Scholar 

  • van der Hoek W (2004) A framework for a global assessment of the extent of wastewater irrigation: the need for common wastewater typology, International Water Management Institute (IWMI), India.

    Google Scholar 

  • Van Ginneken M, Oron G (2000) Risk assessment of consuming agricultural products irrigated with reclaimed wastewater: an exposure model. Water Resour Res 36(9):2691–2699

    Google Scholar 

  • van Opstal JD, Huibers FP, Cresswell RG (2012) A participatory modelling approach to define farm-scale effects of reclaimed wastewater irrigation in the Lockyer Valley, Australia. Water Int 37(7):843–858

    Google Scholar 

  • Verhoeven JTA, Meuleman AFM (1999) Wetlands for wastewater treatment: opportunities and limitations. Ecol Eng 12(1–2):5–12

    Google Scholar 

  • Viviani G, Iovino M (2004) Wastewater reuse effects on soil hydraulic conductivity. J Irrig Drain Eng 130(6):476–484

    Google Scholar 

  • Walker C, Lin HS (2008) Soil property changes after four decades of wastewater irrigation: a landscape perspective. CATENA 73(1):63–74

    Google Scholar 

  • Wallace JS (2000) Increasing agricultural water efficiency to meet future food production. Agric Ecosyst Environ 82:105–119

    Google Scholar 

  • Wang J-f, Wang G-x, Wanyan H (2007) Treated wastewater irrigation effect on soil, crop and environment: wastewater recycling in the loess area of China. J Environ Sci 19(9):1093–1099

    Google Scholar 

  • Weber S, Khan S, Hollender J (2006) Human risk assessment of organic contaminants in reclaimed wastewater used for irrigation. Desalination 187(1–3):53–64

    Google Scholar 

  • Wichelns D, Drechsel P (2011) Meeting the challenge of wastewater irrigation: economics, finance, business opportunities and methodological constraints. Water Int 36(4):415–419

    Google Scholar 

  • Wichelns D, Owaygen M, Redwood M (2011) Developing country farmers need more than financial incentives to reduce the risks of wastewater irrigation. Water Int 36(4):467–475

    Google Scholar 

  • World Health Organization (WHO) (1989) Health guidelines for the use of wastewater in agriculture and aquaculture. Report of WHO Scientific Group, WHO technical report series, 778. WHO, Geneva

    Google Scholar 

  • World Health Organization (WHO) (2006) WHO guidelines for the safe use of wastewater, excreta and greywater, 4 volumes. World Health Organization Press, Geneva

    Google Scholar 

  • Wu G-H, Cao S-S (2010) Mercury and cadmium contamination of irrigation water, sediment, soil and shallow groundwater in a wastewater-irrigated field in Tianjin. China B Environ Contam Toxicol 84(3):336–341

    Google Scholar 

  • Xu J, Wu L, Chang AC, Zhang Y (2010) Impact of long-term reclaimed wastewater irrigation on agricultural soils: a preliminary assessment. J Hazard Mater 183(1–3):780–786

    Google Scholar 

  • Yan D, Bai Z, Rowan M, Gu L, Shumei R, Yang P (2009) Biofilm structure and its influence on clogging in drip irrigation emitters distributing reclaimed wastewater. J Environ Sci 21(6):834–841

    Google Scholar 

  • Yannopoulos SI, Lyberatos G, Theodossiou N, Li W, Valipour M, Tamburrino A, Angelakis AN (2015) Evolution of water lifting devices (pumps) over the centuries worldwide. Water 7(9):5031–5060

    Google Scholar 

  • You L, Ringler C, Wood-Sichra U, Robertson R, Wood S, Zhu T, Nelson G, Guo Z, Sun Y (2011) What is the irrigation potential for Africa? A combined biophysical and socioeconomic approach. Food Policy 36(6):770–782

    Google Scholar 

  • Zema DA, Bombino G, Andiloro S, Zimbone SM (2012) Irrigation of energy crops with urban wastewater: effects on biomass yields, soils and heating values. Agric Water Manag 115:55–65

    Google Scholar 

  • Zhang Y, Zhang H-W, Su Z-C, Zhang C-G (2008) Soil microbial characteristics under long-term heavy metal stress: a case study in Zhangshi wastewater irrigation area, Shenyang. Pedosphere 18(1):1–10

    Google Scholar 

  • Zhang C, Liao X, Li J, Xu L, Liu M, Du B, Wang Y (2013) Influence of long-term sewage irrigation on the distribution of organochlorine pesticides in soil–groundwater systems. Chemosphere 92(4):337–343

    Google Scholar 

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Authors and Affiliations

  1. Young Researchers and Elite Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran

    Mohammad Valipour

  2. Department of Biological and Agricultural Engineering and Zachry Department of Civil Engineering, Texas A & M University, College Station, TX, 77843-2117, USA

    Vijay P. Singh

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  1. School of Science and Health, Western Sydney University, Penrith, NSW, Australia

    Basant Maheshwari

  2. Institute of Technology, University of Moratuwa, Moratuwa, Sri Lanka

    Bhadranie Thoradeniya

  3. Biological and Agricultural Engineering, Texas A & M University, College Station, TX, USA

    Vijay P. Singh

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Valipour, M., Singh, V.P. (2016). Global Experiences on Wastewater Irrigation: Challenges and Prospects. In: Maheshwari, B., Thoradeniya, B., Singh, V.P. (eds) Balanced Urban Development: Options and Strategies for Liveable Cities. Water Science and Technology Library, vol 72. Springer, Cham. https://doi.org/10.1007/978-3-319-28112-4_18

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