Bioelectrochemical cell (BeCC) integrated with Granular Activated Carbon (GAC) in treating spent caustic wastewater

Norsafiah, Fazli and N S A, Mutamim and S A, Ibrahim (2020) Bioelectrochemical cell (BeCC) integrated with Granular Activated Carbon (GAC) in treating spent caustic wastewater. IOP Conf. Series: Materials Science and Engineering, 736 (72010). pp. 1-10. (Published)

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Abstract

The study is to treat spent caustic wastewater by using bioelectrochemical cell (BeCC) integrated with Granular Activated Carbon (GAC) as the bacterial attachment medium. BeCC is a bioelectrochemical reac- tor which employed microorganisms for substrate degradation, while also capable in producing energy. The study investigated the optimum GAC dosage in BeCC whereby it was tested at 0 g (blank) to 25 g of GAC and its performance in terms of Chemical Oxygen Demand (COD) and sulfide removal and open circuit voltage (OCV) were assessed throughout 30 days of operation. From the study, GAC dosage of 10 g was the optimum GAC dosage with the highest COD and sulfide removal of 97.56% and 96.25%, re- spectively and highest voltage of 583 mV. Comparing the optimum BeCC performance with the blank, the result demonstrated 16% and 25% higher in COD and sulfide removal, respectively with increment of OCV from 115.7 mV to 583 mV. The biomass characteristics at different GAC dosage were indicated by the mixed liquor suspended solid (MLSS), mixed liquor volatile suspended solid (MLVSS), biomass extracel- lular polymeric substance (EPS) and sludge volume index (SVI). It is found that the dominant bacteria attached on the GAC was Klebsiella oxytoca identified by biochemical identification method.

Item Type: Article
Additional Information: Energy Security and Chemical Engineering Congress Park Royal Penang Resort, Penang, Malaysia. 17th -19th July 2019
Uncontrolled Keywords: Bioelectrochemical cell; Granular activated carbon; Spent caustic wastewater; Chemical oxygen demand; Open circuit voltage
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Institute of Postgraduate Studies
Depositing User: Ms. Ratna Wilis Haryati Mustapa
Date Deposited: 09 Aug 2021 07:53
Last Modified: 09 Aug 2021 07:53
URI: http://umpir.ump.edu.my/id/eprint/31537
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