Journal of Zhejiang University-SCIENCE A

, Volume 9, Issue 1, pp 125–132 | Cite as

Mechanisms of phosphate removal from aqueous solution by blast furnace slag and steel furnace slag

Article

Abstract

We report the adsorption of phosphate and discuss the mechanisms of phosphate removal from aqueous solution by burst furnace slag (BFS) and steel furnace slag (SFS). The results show that the adsorption of phosphate on the slag was rapid and the majority of adsorption was completed in 5∼10 min. The adsorption capacity of phosphate by the slag was reduced dramatically by acid treatment. The relative contribution of adsorption to the total removal of phosphate was 26%∼28%. Phosphate adsorption on BFS and SFS follows the Freundlich isotherm, with the related constants of k 6.372 and 1/n 1.739 for BFS, and of k 1.705 and 1/n 1.718 for SFS. The pH and Ca2+ concentration were decreased with the addition of phosphate, suggesting the formation of calcium phosphate precipitation. At pH 2.93 and 6.93, phosphate was desorbed by about 36%∼43% and 9%∼11%, respectively. These results indicate that the P adsorption on the slag is not completely reversible and that the bond between the slag particles and adsorbed phosphate is strong. The X-ray diffraction (XRD) patterns of BFS and SFS before and after phosphate adsorption verify the formation of phosphate salts (CaHPO4·2H2O) after adsorption process. We conclude that the removal of phosphate by BFS and SFS is related to the formation of phosphate calcium precipitation and the adsorption on hydroxylated oxides. The results show that BFS and SFS removed phosphate nearly 100%, indicating they are promising adsorbents for the phosphate removal in wastewater treatment and pollution control.

Key words

Phosphate removal Blast furnace slag (BFS) Steel furnace slag (SFS) Adsorption Precipitation 

CLC number

X7 

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References

  1. Agyei, N.M., Strydom, C.A., Potgieter, J.H., 2002. The removal of phosphate ions from aqueous solution by fly ash, slag, ordinary Portland cement and related blends. Cement & Concrete Research, 32(12):1889–1897. [doi:10.1016/S0008-8846(02)00888-8]CrossRefGoogle Scholar
  2. APHA (American Public Health Association), 1995. Standard Methods for the Examination of Water and Wastewater, 19th Ed. APHA, Washington, DC.Google Scholar
  3. Dimitrova, S.V., 1996. Metal sorption on blast furnace slag. Water Research, 30(1):228–232. [doi:10.1016/0043-1354(95)00104-S]CrossRefGoogle Scholar
  4. Dimitrova, S.V., 2002. Use of granular slag columns for lead removal. Water Research, 36(16):4001–4008. [doi:10.1016/S0043-1354(02)00120-3]CrossRefGoogle Scholar
  5. Dimitrova, S.V., Mehandjiev, D.R., 1998. Lead removal from aqueous solution by granulated blast-furnace slag. Water Research, 32(11):3289–3292. [doi:10.1016/S0043-1354(98)00119-5]CrossRefGoogle Scholar
  6. Dimitrova, S.V., Mehandjiev, D.R., 2000. Interaction of blast-furnace slag with heavy metal ions in water solutions. Water Research, 34(6):1957–1961. [doi:10.1016/S0043-1354(99)00328-0]CrossRefGoogle Scholar
  7. Drizo, A., Frost, C.A., Grace, J., Smith, K.A., 1999. Physico-chemical screening of phosphate-removing substrates for use in constructed wetland systems. Water Research, 33(17):3595–3602. [doi:10.1016/S0043-1354(99)00082-2]CrossRefGoogle Scholar
  8. Drizo, A., Forget, C., Chapuis, R.P., Comeau, Y., 2002. Phosphorus removal by EAF steel slag—A parameter for the estimation of the longevity of constructed wetland systems. Environmental Science & Technology, 36(21): 4642–4648. [doi:10.1021/es011502v]CrossRefGoogle Scholar
  9. Drizo, A., Forget, C., Chapuis, R.P., Comeau, Y., 2006. Phosphorus removal by electric arc furnace steel slag and serpentinite. Water Research, 40(8):1547–1554. [doi:10.1016/j.watres.2006.02.001]CrossRefGoogle Scholar
  10. Jain, A.K., Gupta, V.K., Bhatnagar, A.S., 2003. Utilization of industrial waste products as adsorbents for the removal of dyes. Journal Hazardous Materials, 101(1):31–42. [doi:10.1016/S0304-3894(03)00146-8]CrossRefGoogle Scholar
  11. Jha, V.K., Kameshima, Y., Nakajima, A., Okada, K., 2004. Hazardous ions uptake behavior of thermally activated steel-making slag. Journal Hazardous Materials, 114(1–3):139–144. [doi:10.1016/j.jhazmat.2004.08.004]CrossRefGoogle Scholar
  12. Johansson, L., 1999a. Blast furnace slag sorbents—columns studies. The Science of Total Environment, 229(1–2): 89–97. [doi:10.1016/S0048-9697(99)00072-8]CrossRefGoogle Scholar
  13. Johansson, L., 1999b. Industrial by-products and natural substrate as phosphorus sorbents. Environmental Technology, 20:309–316.CrossRefGoogle Scholar
  14. Johansson, L., Gustafsson, J.P., 2000. Phosphate removal using blast furnace slags and opaka-mechanisms. Water Research, 34(1):259–265. [doi:10.1016/S0043-1354(99)00135-9]CrossRefGoogle Scholar
  15. Khelifi, O., Kozuki, Y., Murakami, H., Kurata, K., Nishioka, M., 2002. Nutrients adsorption from seawater by new porous carrier made from zeolitized fly ash and slag. Marine Pollution Bulletin, 45(1–12):311–315. [doi:10.1016/S0025-326X(02)00107-8]CrossRefGoogle Scholar
  16. Kim, E.H., Yim, S.B., Jung, H.C., Lee, E.J., 2006. Hydroxyapatite crystallization from a highly concentrated phosphate solution using powdered converter slag as a seed material. Journal Hazardous Materials, 136(3):690–697. [doi:10.1016/j.jhazmat.2005.12.051]CrossRefGoogle Scholar
  17. Klute, A., 1986. Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods. ASA and SSSA, Madison.Google Scholar
  18. Kostura, B., Kulveitova, H., Lesko, J., 2005. Blast furnace slags as sorbents of phosphate from water solution. Water Research, 39:1795–1802.CrossRefGoogle Scholar
  19. Lee, S.H., Vigneswaran, S., Chung, Y., 1997. A detailed investigation of phosphorus removal in soil and slag media. Environmental Technology, 18:699–710.CrossRefGoogle Scholar
  20. Lindsay, W.L., 1979. Chemical Equilibria in Soils. John Wiley & Sons, New York.Google Scholar
  21. Mann, R.A., 1997. Phosphorus adsorption and desorption characteristics of constructed wetland gravels and steelworks byproducts. Australian Journal Soil Research, 35(2): 375–384. [doi:10.1071/S96041]CrossRefGoogle Scholar
  22. Mann, R.A., Bavor, H.J., 1993. Phosphorus removal in constructed wetlands using gravel and industrial waste substrata. Water Science & Technology, 27:107–113.Google Scholar
  23. Oguz, E., 2004. Removal of phosphate from aqueous solution with blast furnace slag. Journal Hazardous Materials, 114(1–3):131–137. [doi:10.1016/j.jhazmat.2004.07.010]CrossRefGoogle Scholar
  24. Oguz, E., 2005. Themodynamic and kinetic investigations of PO43− adsorption on blast furnace slag. Journal of Colloid and Interface Science, 281(1):62–67. [doi:10.1016/j.jcis.2004.08.074]CrossRefGoogle Scholar
  25. Ortiz, N., Pires, M.A.F., Bressiani, J.C., 2001. Use of steel converter slag as nickel adsorber to wastewater treatment. Waste Management, 21(7):631–635. [doi:10.1016/S0956-053X(00)00123-9]CrossRefGoogle Scholar
  26. Ramakrishna, K.R., Viraraghvan, T., 1997. Use of slag for dye removal. Water Management, 17(8):483–488. [doi:10.1016/S0956-053X(97)10058-7]Google Scholar
  27. Sakadevan, K., Bavor, H.J., 1998. Phosphate adsorption characteristics of soils, slags and zeolite to be used as substrates in constructed wetland systems. Water Research, 32(2):393–399. [doi:10.1016/S0043-1354(97)00271-6]CrossRefGoogle Scholar
  28. Shilton, A.N., Elmetri, I., Drizo, A., Pratt, S., Haverkamp, R.G., Bilby, S.C., 2006. Phosphorus removal by an active slag filter—A decade of full scale experience. Water Research, 40(1):113–118. [doi:10.1016/j.watres.2005.11.002]CrossRefGoogle Scholar
  29. Srivastava, S.V., Gupta, V., Mohan, D., 1997. Removal of lead and chromium by activated slag—A blast furnace waste. Journal of Environmental Engineering, 123(5):461–468. [doi:10.1061/(ASCE)0733-9372(1997)123:5(461)]CrossRefGoogle Scholar
  30. USEPA (US Environmental Protection Agency), 1992. Toxicity Characteristics Leaching Procedure (Method 1311) in SW-846. Office of Solid Waste, Washington, DC.Google Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.College of Environmental and Resource SciencesZheijiang UniversityHangzhouChina

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