Journal of Material Cycles and Waste Management

, Volume 20, Issue 1, pp 421–430 | Cite as

Centrifugal dewatering of blended sludge from drinking water treatment plant and wastewater treatment plant

  • Ailan Yan
  • Jun Li
  • Liu Liu
  • Ting Ma
  • Jun Liu
  • Yongjiong Ni


The blended sludge taken from drinking water treatment plant (WTP) and wastewater treatment plant (WWTP) for centrifugal dewatering was proposed. Residual products of polyaluminum chloride and inorganic particles in alum sludge from WTP were considered to improve dewaterability of sewage sludge from WWTP through the charge neutralization, adsorption bridging, squeezing, and skeleton builders. The sludge with blend ratio of 1:1 and no PAM addition, the specific resistance to filtration was 1.27 × 1013 m/kg, the moisture content was 62% after centrifugal dewatering, and more excellent dewatering performance of blended sludge was proved. Scanning electron microscope showed that the surface of blended sludge had more rough and porosity structure than the sewage sludge. EDS analysis showed that residual alum and inorganic particles existed in blended sludge. 3D-Excitation-emission matrix was used to analyze change of protein-like of sewage sludge and blended sludge with dewatering process. The results implied that alum sludge acted as chemical conditioner and physical conditioner in blended sludge. A hypothesis was suggested to describe the centrifugal dewatering process of blended sludge. The final disposal options of the blended sludge would be landfilling and building material utilization.


Blended sludge Alum sludge Centrifugal dewatering Moisture content 3D-EEM 



This work was supported by the National Natural Science Foundation of China (No. 51478433), Science and Technology Project of Zhejiang (No. 2010R50037), and Zhejiang Provincial Natural Science Foundation of China (No. LY17D030001).


  1. 1.
    Tsai W-T (2014) Analysis of municipal solid waste incineration plants for promoting power generation efficiency in Taiwan. J Mater Cycles Waste Manag 18(2):1–6Google Scholar
  2. 2.
    Sørensen PB, Hansen JA (1993) Extreme solid compressibility in biological sludge dewatering. Water Sci Technol 28:133–143Google Scholar
  3. 3.
    Qi Y, Thapa KB, Hoadley AF (2011) Application of filtration aids for improving sludge dewatering properties—a review. Chem Eng J 171:373–384CrossRefGoogle Scholar
  4. 4.
    Saveyn H, Pauwels G, Timmerman R, Van der Meeren P (2005) Effect of polyelectrolyte conditioning on the enhanced dewatering of activated sludge by application of an electric field during the expression phase. Water Res 39:3012–3020CrossRefGoogle Scholar
  5. 5.
    Zhou J, Liu F, Pan C (2014) Effects of cationic polyacrylamide characteristics on sewage sludge dewatering and moisture evaporation. PloS one9:e98159CrossRefGoogle Scholar
  6. 6.
    Wang J, Chen C, Gao Q, Li T, Zhu F (2012) Relationship between the characteristics of cationic polyacrylamide and sewage sludge dewatering performance in a full-scale plant. Proc Environ Sci 16:409–417CrossRefGoogle Scholar
  7. 7.
    Sørensen B, Wakeman R (1996) Filtration characterisation and specific surface area measurement of activated sludge by rhodamine B adsorption. Water Res 30:115–121CrossRefGoogle Scholar
  8. 8.
    Wu M, Wei C, Zhu R, Pan X, Wang Y (2009) Enhancement of the settling and dewatering properties of activated sludge by humus soil. In: Bioinformatics and biomedical engineering, 2009 ICBBE 2009 3rd International Conference. IEEE, pp 1–4Google Scholar
  9. 9.
    Lee J-E (2011) The effect of the addition of fly ash to municipal digested sludge on its electroosmotic dewatering. J Mater Cycles Waste Manag 13:259–263CrossRefGoogle Scholar
  10. 10.
    Qi Y, Thapa KB, Hoadley AF (2011) Benefit of lignite as a filter aid for dewatering of digested sewage sludge demonstrated in pilot scale trials. Chem Eng J 166:504–510CrossRefGoogle Scholar
  11. 11.
    Tunçal T (2011) Improving thermal dewatering characteristics of mechanically dewatered sludge: response surface analysis of combined lime-heat treatment. Water Environ Res 83:405–410CrossRefGoogle Scholar
  12. 12.
    Lee D, Jing S, Lin Y (2001) Using seafood waste as sludge conditioners. Water Sci Technol 44:301–307Google Scholar
  13. 13.
    Nittami T, Uematsu K, Nabatame R, Kondo K, Takeda M, Matsumoto K (2015) Effect of compressibility of synthetic fibers as conditioning materials on dewatering of activated sludge. Chem Eng J 268:86–91CrossRefGoogle Scholar
  14. 14.
    Zhang H, Yang J, Yu W, Luo S, Peng L, Shen X et al (2014) Mechanism of red mud combined with Fenton’s reagent in sewage sludge conditioning. Water Res 59:239–247CrossRefGoogle Scholar
  15. 15.
    Chang G, Liu J, Lee D (2001) Co-conditioning and dewatering of chemical sludge and waste activated sludge. Water Res 35:786–794CrossRefGoogle Scholar
  16. 16.
    Guan B, Yu J, Fu H, Guo M, Xu X (2012). Improvement of activated sludge dewaterability by mild thermal treatment in CaCl2 solution. Water Res 46:425–432CrossRefGoogle Scholar
  17. 17.
    Neyens E, Baeyens J (2003) A review of thermal sludge pre-treatment processes to improve dewaterability. J Hazard Mater 98:51–67CrossRefGoogle Scholar
  18. 18.
    Taylor M, Elliott HA (2012) Influence of water treatment residuals on dewaterability of wastewater biosolids. Water Sci Technol 67:180–186CrossRefGoogle Scholar
  19. 19.
    Peeters B, Dewil R, Vernimmen L, Van den Bogaert B, Smets IY (2013). Addition of polyaluminiumchloride (PACl) to waste activated sludge to mitigate the negative effects of its sticky phase in dewatering-drying operations. Water Res 47:3600–3609CrossRefGoogle Scholar
  20. 20.
    Lai J, Liu J (2004) Co-conditioning and dewatering of alum sludge and waste activated sludge. Water Sci Technol 50:41–48Google Scholar
  21. 21.
    Vieira C, Margem J, Monteiro S (2008). Microstructural changes of clayey ceramic incorporated with filter sludge from water treatment plant. Matéria (Rio de Janeiro) 13:275–281CrossRefGoogle Scholar
  22. 22.
    Li J, Liu L, Liu J, Ma T, Yan A, Ni Y (2016) Effect of adding alum sludge from water treatment plant on sewage sludge dewatering. J Environ Chem Eng 4:746–752CrossRefGoogle Scholar
  23. 23.
    Luo H, Ning X-A, Liang X, Feng Y, Liu J (2013) Effects of sawdust-CPAM on textile dyeing sludge dewaterability and filter cake properties. Bioresour Technol 139:330–336CrossRefGoogle Scholar
  24. 24.
    Kim KS, Sajjad M, Lee J, Park J, Jun T (2014) Variation of extracellular polymeric substances (EPS) and specific resistance to filtration in sludge granulation process to the change of influent organic loading rate. Desalination Water Treat 52:4376–4387CrossRefGoogle Scholar
  25. 25.
    Jahn A, Nielsen PH (1998) Cell biomass and exopolymer composition in sewer biofilms. Water Sci Technol 37:17–24Google Scholar
  26. 26.
    Leenheer JA, Croué J-P (2003) Peer reviewed: characterizing aquatic dissolved organic matter. Environ Sci Technol 37:18A–26ACrossRefGoogle Scholar
  27. 27.
    Baker A (2002) Fluorescence properties of some farm wastes: implications for water quality monitoring. Water Res 36:189–195CrossRefGoogle Scholar
  28. 28.
    Li W-H, Sheng G-P, Liu X-W, Yu H-Q (2008) Characterizing the extracellular and intracellular fluorescent products of activated sludge in a sequencing batch reactor. Water Res 42:3173–3181CrossRefGoogle Scholar

Copyright information

© Springer Japan 2017

Authors and Affiliations

  • Ailan Yan
    • 1
    • 2
  • Jun Li
    • 1
    • 3
  • Liu Liu
    • 4
  • Ting Ma
    • 3
  • Jun Liu
    • 1
  • Yongjiong Ni
    • 3
  1. 1.College of EnvironmentZhejiang University of TechnologyHangzhouChina
  2. 2.Zhejiang University of Water Resources and Electric PowerHangzhouChina
  3. 3.College of Civil Engineering and ArchitectureZhejiang University of TechnologyHangzhouChina
  4. 4.Hangzhou Urban and Rural Construction Design Institute Co., Ltd.HangzhouChina

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