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Improve effluent water quality at Abu‐Rawash wastewater treatment plant with the application of coagulants
Author(s) -
Mostafa Mohamed K.,
Peters Robert W.
Publication year - 2016
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12161
Subject(s) - effluent , wastewater , sulfate , ferrous , ferric , sewage treatment , chloride , pulp and paper industry , chemistry , aluminium sulfate , sewage , water quality , water treatment , environmental science , waste management , environmental engineering , engineering , inorganic chemistry , organic chemistry , ecology , biology
This research investigated a process to improve the Abu‐Rawash WWTP effluent water quality with the application of aluminum chloride (AlCl 3 ); 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 AlCl 3 in wastewater treatment, a comparison was conducted between AlCl 3 and other common coagulants used in wastewater treatment which include ferrous sulfate (FeSO 4 ), ferric sulfate (Fe 2 (SO 4 ) 3 ) and ferric chloride (FeCl 3 ). Results showed AlCl 3 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 AlCl 3 has the highest performance over those coagulants.