A method for treatment of coloured wastewater

The present invention relates to a method for treatment of coloured wastewater, characterized by the steps of conveying wastewater into a primary clarifier (110) to separate solids from liquids in the wastewater; conveying the wastewater from the primary clarifier (110) into an anaerobic reactor (13...

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Bibliographic Details
Main Authors: Idris, Azni, Abdul Razak, Putri Razreena, Hashim, Rohani, Abdul Rahman, Rakmi, Ibrahim, Zaharah, Mat Ghani, Rahani
Format: Patent
Published: 2012
Online Access:http://psasir.upm.edu.my/id/eprint/34118/
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Description
Summary:The present invention relates to a method for treatment of coloured wastewater, characterized by the steps of conveying wastewater into a primary clarifier (110) to separate solids from liquids in the wastewater; conveying the wastewater from the primary clarifier (110) into an anaerobic reactor (130), wherein in the wastewater is circulated within the anaerobic reactor (130); collecting effluent from the anaerobic reactor (130) and conveying the effluent into an aerobic reactor (150); wherein the anaerobic reactor (130) and the aerobic reactor (150) each independently comprises a dye decolourizing bacteria mixture comprising of Enterococcus faecalis, Lysinibacillus fusiformis and Brevibacillus panacihumi in a ratio of 4:2:1; wherein the anaerobic reactor (130) and the aerobic reactor (150) each independently includes a biofilm medium for enhancing entrapment of the dye decolourizing bacteria; flowing the effluent from the aerobic reactor (150) into a secondary clarifier (170) for solids removal.