Dose of Biocoagulant-Mixing Rate Combinations for Optimum Reduction of COD in Wastewater

Chemical oxygen demand (COD) in domestic wastewater can be treated using flocculation-coagulation process with addition of Oyster mushroom ( Pleurotus ostreatus ) in powder form as biocoagulant. The fungal cell wall of Oyster mushroom comprises of chitin that is high polyelectrolyte and can be funct...

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Bibliographic Details
Published in:	E3S Web of Conferences Vol. 31; p. 3018
Main Authors:	Faustina Patricia, Maria, Purwono, Arief Budihardjo, Mochamad
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Les Ulis EDP Sciences 01-01-2018
Subjects:	Chemical oxygen demand Chitin Coagulants Coagulation Domestic wastewater Dosage Flocculation Heavy metals Polyelectrolytes Powder Reduction Wastewater treatment
Online Access:	Get full text
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Summary:	Chemical oxygen demand (COD) in domestic wastewater can be treated using flocculation-coagulation process with addition of Oyster mushroom ( Pleurotus ostreatus ) in powder form as biocoagulant. The fungal cell wall of Oyster mushroom comprises of chitin that is high polyelectrolyte and can be function as an absorbent of heavy metals in wastewater. The effectiveness of flocculation-coagulation process in treating wastewater depends on dose of coagulant and mixing rate. Therefore, this study aims to determine the best combination of three variation of dose of biocoagulant which are 600 mg/l, 1000 mg/l, and 2000 mg/l and mixing rate which are 100 rpm, 125 rpm, and 150 rpm that give the most reduction of COD in the wastewater. The result indicates that the combination of 1000 mg/l of biocoagulant and 100 rpm of mixing rate were found to be the most optimum combination to treat COD in the wastewater with COD reduction of 47.7%.
ISSN:	2267-1242 2555-0403 2267-1242
DOI:	10.1051/e3sconf/20183103018