1. T. Ahmad, K. Ahmad, M. Alam, Sustainable management of water treatment sludge through 3“R” concept, J. Clean. Prod., 124 (2016) 1–13.
  2. A.O. Babatunde, Y.Q. Zhao, Equilibrium and kinetic analysis of phosphorus adsorption from aqueous solution using waste alum sludge, J. Hazard. Mater., 184 (2010) 746–752.
  3. Y. Zhang, L. Yang, D. Wang, T. Zhang, Resource utilization of water treatment residual sludge (WTRS): effective defluoridation from aqueous solution, Desal. Wat. Treat., 55 (2015) 448–462.
  4. K.C. Makris, D. Sarkar, R. Datta, Aluminum-based drinkingwater treatment residuals: a novel sorbent for perchlorate removal, Environ. Pollut., 140 (2006) 9–12.
  5. Y. Zhao, C. Wang, L.A. Wendling, Y. Pei, Feasibility of using drinking water treatment residuals as a novel chlorpyrifos adsorbent, J. Agric. Food Chem., 61 (2013) 7446–7452.
  6. Y.S. Hu, Y.Q. Zhao, B. Sorohan, Removal of glyphosate from aqueous environment by adsorption using water industrial residual, Desalination, 271 (2011) 150–156.
  7. P. Punamiya, D. Sarkar, S. Rakshit, R. Datta, Effectiveness of aluminum-based drinking water treatment residuals as a novel sorbent to remove tetracyclines from aqueous medium, J. Environ. Qual., 42 (2013) 1449–1459.
  8. S.S. Nielsen, L.R. Petersen, P. Kjeldsen, R. Jakobsen, Amendment of arsenic and chromium polluted soil from wood preservation by iron residues from water treatment, Chemosphere, 84 (2011) 383–389.
  9. J.A. Ippolito, K.G. Scheckel, K.A. Barbarick, Selenium adsorption to aluminum-based water treatment residuals, J. Colloid Interface Sci., 338 (2009) 48–55.
  10. M. Silvetti, P. Castaldi, G. Garau, D. Demurtas, S. Deiana, Sorption of cadmium(II) and zinc(II) from aqueous solution by water treatment residuals at different pH values, Water Air Soil Pollut., 226 (2015) 1–13.
  11. Y.F. Zhou, R.J. Haynes, Removal of Pb(II), Cr(III) and Cr(VI) from aqueous solutions using alum-derived water treatment sludge, Water Air Soil Pollut., 215 (2011) 631–643.
  12. P. Castaldi, M. Silvetti, G. Garau, D. Demurtas, S. Deiana, Copper(II) and lead(II) removal from aqueous solution by water treatment residues, J. Hazard. Mater., 283 (2015) 140–147.
  13. A. Hovsepyan, J.C.J. Bonzongo, Aluminum drinking water treatment residuals (Al-WTRs) as sorbent for mercury: implications for soil remediation, J. Hazard. Mater., 164 (2009) 73–80.
  14. E.A. Elkhatib, M.L. Moharem, Immobilization of copper, lead, and nickel in two arid soils amended with biosolids: effect of drinking water treatment residuals, J. Soils Sediments, 15 (2015) 1937–1946.
  15. R.S. Putra, S. Tanaka, Aluminum drinking water treatment residuals (Al-WTRs) as an entrapping zone for lead in soil by electrokinetic remediation, Sep. Purif. Technol., 79 (2011) 208–215.
  16. S. Brown, B. Christensen, E. Lombi, M. McLaughlin, S. McGrath, J. Colpaert, J. Vangronsveld, An inter-laboratory study to test the ability of amendments to reduce the availability of Cd, Pb, and Zn in situ, Environ. Pollut., 138 (2005) 34–45.
  17. C. Wang, H.-L. Jiang, N. Yuan, Y. Pei, Z. Yan, Tuning the adsorptive properties of drinking water treatment residue via oxygen-limited heat treatment for environmental recycle, Chem. Eng. J., 284 (2016) 571–581.
  18. L. Yang, J. Wei, Z. Liu, J. Wang, D. Wang, Material prepared from drinking waterworks sludge as adsorbent for ammonium removal from wastewater, Appl. Surf. Sci., 330 (2015) 228–236.
  19. Z. Zhou, Y. Yang, X. Li, S. Ji, H. Zhang, S. Wang, Q. Zeng, X. Han, The removal characteristics of natural organic matter in the recycling of drinking water treatment sludge: role of solubilized organics, Ultrason. Sonochem., 28 (2016) 259–268.
  20. M.J. Ribeiro, D.U. Tulyaganov, J.M.F. Ferreira, J. A. Labrincha, Production of Al-rich sludge-containing ceramic bodies by different shaping techniques, J. Mater. Process. Technol., 148 (2004) 139–146.
  21. J. Bae, N. Park, G. Kim, C.H. Lee, Y.-K. Park, J.-K. Jeon, Characteristics of pellet-type adsorbents prepared from water treatment sludge and their effect on trimethylamine removal, Korean J. Chem. Eng., 31 (2014) 624–629.
  22. A.I. Khuri, S. Mukhopadhyay, Response surface methodology, Wiley Interdiscip. Rev. Comput. Stat., 2 (2010) 128–149.
  23. M.A. Bezerra, R.E. Santelli, E.P. Oliveira, L.S. Villar, L.A. Escaleira, Response surface methodology (RSM) as a tool for optimization in analytical chemistry, Talanta, 76 (2008) 965–977.
  24. C.H. Wang, S.J. Gao, T.X. Wang, B.H. Tian, Y.S. Pei, Effectiveness of sequential thermal and acid activation on phosphorus removal by ferric and alum water treatment residuals, Chem. Eng. J., 172 (2011) 885–891.
  25. G. Xu, J. Zou, G. Li, Ceramsite made with water and wastewater sludge and its characteristics affected by SiO2 and Al2O3, Environ. Sci. Technol., 42 (2008) 7417–7423.
  26. A. Violante, M. Pigna, Competitive sorption of arsenate and phosphate on different clay minerals and soils, Soil Sci. Soc. Am. J., 66 (2002) 1788–1796.
  27. A.O. Babatunde, Y.Q. Zhao, A.M. Burke, M.A. Morris, J.P. Hanrahan, Characterization of aluminium-based water treatment residual for potential phosphorus removal in engineered wetlands, Environ. Pollut., 157 (2009) 2830–2836.
  28. C. Elangovan, K. Subramanian, Reuse of alum sludge in clay brick manufacturing, Water Sci. Technol. Water Supply, 11 (2011) 333–341.
  29. E.A. Dayton, N.T. Basta, A method for determining the phosphorus sorption capacity and amorphous aluminum of aluminum-based drinking water treatment residuals, J. Environ. Qual., 34 (2005) 1112–1118.
  30. S.R. Teixeira, G.T.A Santos, A.E. Souza, P. Alessio, S.A. Souza, N.R. Souza, The effect of incorporation of a Brazilian water treatment plant sludge on the properties of ceramic materials, Appl. Clay Sci., 53 (2011) 561–565.
  31. D.U. Tulyaganov, S.M.H. Olhero, M.J. Ribeiro, J.M.F. Ferreira, J.A. Labrincha, Mullite-alumina refractory ceramics obtained from mixtures of natural common materials and recycled Al-rich anodizing sludge, J. Mater. Synth. Process., 10 (2002) 311–318.
  32. C. Vohla, M. Kõiv, H.J. Bavor, F. Chazarenc, Ü. Mander, Filter materials for phosphorus removal from wastewater in treatment wetlands-a review, Ecol. Eng., 37 (2011) 70–89.
  33. Y.Q. Zhao, A.O. Babatunde, X.H. Zhao, W.C. Li, Development of alum sludge-based constructed wetland: an innovative and cost effective system for wastewater treatment, J. Environ. Sci. Health Part A, 44 (2009) 827–832.
  34. G. Limousin, J.P. Gaudet, L. Charlet, S. Szenknect, V. Barthès, M. Krimissa, Sorption isotherms: a review on physical bases, modeling and measurement, Appl. Geochem., 22 (2007) 249–275.
  35. C. Wang, S. Gao, Y. Pei, Y.Q. Zhao, Use of drinking water treatment residuals to control the internal phosphorus loading from lake sediments: laboratory scale investigation, Chem. Eng. J., 225 (2013) 93–99.