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Improve effluent water quality at Abu-Rawash wastewater treatment plant with the application of coagulants
Ist Teil von
Water and environment journal : WEJ, 2016-03, Vol.30 (1-2), p.88-95
Ort / Verlag
London: Blackwell Publishing Ltd
Erscheinungsjahr
2016
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
This research investigated a process to improve the Abu‐Rawash WWTP effluent water quality with the application of aluminum chloride (AlCl3); in turn, this improvement will lead to improve water quality at the El‐Rahawy drain and in the Rosetta branch of the Nile River. Sewage samples were collected from the effluent of the grit removal chamber. Jar tests were performed to estimate the coagulant dosage required to obtain acceptable treatment. To prove the efficiency of the AlCl3 in wastewater treatment, a comparison was conducted between AlCl3 and other common coagulants used in wastewater treatment which include ferrous sulfate (FeSO4), ferric sulfate (Fe2(SO4)3) and ferric chloride (FeCl3). Results showed AlCl3 was more cost‐effective and efficient in wastewater treatment than these three iron‐based coagulants. A paired‐sample t‐test was also performed to rank the performance of the various coagulants tested. The t‐test has also confirmed that the AlCl3 has the highest performance over those coagulants.