References

  1. G. Tchobanoglous, F.L. Burton, Wastewater Engineering: Treatment, Disposal, and Reuse. McGraw-Hill, New York, 1979, pp. 146–148.
  2. P.W. Abrahams, Soils: their implications to human health, Sci. Total Environ., 291 (2002) 1–32.
  3. SSDS. About Us – Salalah Sanitary Drainage Service (2018). http://ssds.co.om/index.php/about-us/#whoWeAre. Accessed 15 February 2018
  4. D. Geara-Matta, R. Moilleron, A. El Samarani, C. Lorgeoux, G. Chebbo, State of art about water uses and wastewater management in Lebanon. In World Wide Workshop for Young Environmental Scientists: (2010) (No. WWW-YES-2010-13).
  5. S.M. Khopkar, Environmental pollution monitoring and control, 2007, New Age International.
  6. O. Al-Lahham, N.M. El Assi, M. Fayyad, Impact of treated wastewater irrigation on quality attributes and contamination of tomato fruit, Agric. Water Manage., 61 (2003) 51–62.
  7. M.I. Shammas, G. Jacks, Seawater intrusion in the Salalah plain aquifer, Oman. Environ. Geol., 53 (2007) 575–587.
  8. I. Oller, S. Malato, J. Sánchez-Pérez, Combination of advanced oxidation processes and biological treatments for wastewater decontamination—a review, Sci. Total Environ., 409 (2011) 4141–4166.
  9. O.J. Hao, H. Kim, P.C. Chiang, Decolorization of wastewater, Crit. Rev. Environ. Sci. Technol., 30 (2000) 449–505.
  10. S.D. Richardson, A.D. Thruston Jr., T.V. Caughran, P.H. Chen, T.W. Collette, K.M. Schenck, B.W. Lykins Jr., C. Rav-Acha, V. Glezer, Identification of new drinking water disinfection by-products from ozone, chlorine dioxide, chloramine, and chlorine, Water Air Soil Pollut., 123 (2000) 95–102.
  11. EPA. Constructed wetlands for wastewater treatment and wildlife habitat (1993). Available from http://www.epa.gov/owow/wetlands/construct. Accessed 14/01/2008.
  12. C.S. Lee, J. Robinson, M.F. Chong, A review on application of flocculants in wastewater treatment. Process Safe. Environ. Protect., 92 (2014) 489–508.
  13. L.N. Ukiwe, J.I. Alinnor, Assessment of polyacrylamide and aluminium sulphate coagulants in turbidity removal in wastewater, Terrest. Aquat. Environ. Toxicol., 6 (2010) 132–135.
  14. G. Vijayaraghavan, T. Sivakumar, A.V. Kumar, Application of plant based coagulants for waste water treatment, Int. J. Adv. Eng. Res. Stud., 1 (2011) 88–92.
  15. J. Bratby, Coagulation and Flocculation in Water and Wastewater Treatment, IWA Publishing, 2006.
  16. R.W. Schneiter, E.J. Middlebrooks, R.S. Sletten, Lime stabilization and land disposal of cold region wastewater lagoon sludge, Environ. Int., 7 (1982) 207–213.
  17. S. Aber, D. Salari, M.R. Parsa, Employing the Taguchi method to obtain the optimum conditions of coagulation–flocculation process in tannery wastewater treatment, Chem. Eng. J., 162 (2010) 127–134.
  18. G.E.P. Box, W.G. Hunter, J.S. Hunter, Statistics for Experimenters, 1978.
  19. S. Sivamani, R. Baskar, Optimization of bioethanol production from cassava peel using statistical experimental design, Environ. Progr. Sustain. Energy, 34 (2015) 567–574.
  20. D.C. Montgomery, Design and Analysis of Experiments, John Wiley & Sons, 2017.
  21. S. Sivamani, R. Baskar, Process design and optimization of bioethanol production from cassava bagasse using statistical design and genetic algorithm, Prepar. Biochem. Biotechnol., 48 (2018) 834–841.
  22. S.L.C. Ferreira, R.E. Bruns, H.S. Ferreira, G.D. Matos, J.M. David, G.C. Brandão, E.G.P. da Silva, L.A. Portugal, P.S. dos Reis, A.S. Souza, W.N.L. dos Santos, Box-Behnken design: An alternative for the optimization of analytical methods, Anal. Chim. Acta, 597 (2007) 179–186.
  23. L.S. Clescerl, A.E. Greenberg, A.D. Eaton, APHA Standards Methods for the Examination of Water and Wastewater. 20th ed. Washington DC: American Public Health Association, 2001.
  24. L.J.W.Y.Z. Shaoqi, Application of response surface methodology (RSM) to optimize coagulation treatment of cassava starch wastewater, Chinese J. Environ. Eng., 7 (2010) 023.
  25. M. Ahmadi, F. Vahabzadeh, H. Bonakdarpour, E. Mofarrah, M. Mehranian, Application of the central composite design and response surface methodology to the advanced treatment of olive oil processing wastewater using Fenton’s peroxidation, J. Hazard. Mater., 123 (2005) 187–195.
  26. A. Malakahmad, S.Y. Chuan, Application of response surface methodology to optimize coagulation–flocculation treatment of anaerobically digested palm oil mill effluent using alum, Desal. Water Treat., 51 (2013) 6729–6735.
  27. A. Amokrane, C. Comel, J. Veron, Landfill leachates pretreatment by coagulation-flocculation, Water Res., 31 (1997) 2775–2782.
  28. M. Khayet, A.Y. Zahrim, N. Hilal, Modelling and optimization of coagulation of highly concentrated industrial grade leather dye by response surface methodology, Chem. Eng. J., 167 (2011) 77–83.
  29. A.L. Ahmad, S. Ismail, S. Bhatia, Optimization of coagulation−flocculation process for palm oil mill effluent using response surface methodology, Environ. Sci. Technol., 39 (2005) 2828–2834.
  30. J.P. Wang, Y.Z. Chen, X.W. Ge, H.Q. Yu, Optimization of coagulation–flocculation process for a paper-recycling wastewater treatment using response surface methodology, Colloids Surfaces A: Physicochem, Eng. Asp., 302 (2007) 204–210.
  31. Y. Wang, K. Chen, L. Mo, J. Li, J. Xu, Optimization of coagulation–flocculation process for papermaking-reconstituted tobacco slice wastewater treatment using response surface methodology, J. Ind. Eng. Chem., 20 (2014) 391–396.
  32. K. Patidar, R. Roy, S. Kumar, G. Nirmala, T. Murugesan, Experimental investigation of Sterculia foetida and Moringa oleifera as a coagulant for water and wastewater treatment, Desal. Water Treat., 122 (2018) 254–259.
  33. N. Birjandi, H. Younesi, N. Bahramifar, S. Ghafari, A.A. Zinatizadeh, S. Sethupathi, Optimization of coagulation-flocculation treatment on paper-recycling wastewater: application of response surface methodology, J. Environ. Sci. Health, Part A, 48 (2013) 1573–1582.
  34. T.K. Trinh, L.S. Kang, Response surface methodological approach to optimize the coagulation–flocculation process in drinking water treatment, Chem. Eng. Res. Design, 89 (2011) 1126–1135.
  35. H. Asilian, A. Rezaei, S.B. Mortazavi, A. Khavanin, The removal of color and COD from wastewater containing water base color by coagulation process, Int. J. Environ. Sci. Technol., 3 (2006) 153–157.