Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater
This study quantitatively assessed three limiting factors for current density in a microbial electrochemical cell (MXC) treating domestic wastewater: (1) buffer concentration, (2) biodegradability, and (3) particulates. Buffer concentration was not significant for current density in the MXC fed with...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-12-01
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| Series: | Biotechnology Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215017X14000393 |
| _version_ | 1819097627584626688 |
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| author | Bipro Ranjan Dhar Hyung-Sool Lee |
| author_facet | Bipro Ranjan Dhar Hyung-Sool Lee |
| author_sort | Bipro Ranjan Dhar |
| collection | DOAJ |
| description | This study quantitatively assessed three limiting factors for current density in a microbial electrochemical cell (MXC) treating domestic wastewater: (1) buffer concentration, (2) biodegradability, and (3) particulates. Buffer concentration was not significant for current density in the MXC fed with filtered domestic wastewater (180 mg COD/L). Current density reduced by 67% in the MXC fed with filtered sewage having similar COD concentration to acetate medium, which indicates poor biodegradability of soluble organics in the wastewater. Particulate matters seriously decreased current density down to 76%, probably due to the accumulation of particulates on biofilm anode. Our study quantitatively showed that buffer concentration does not limit current density much, but biodegradability of soluble organics and fermentation rate of particulate matters in domestic wastewater mainly control current density in MXCs. |
| first_indexed | 2024-12-22T00:18:06Z |
| format | Article |
| id | doaj.art-e4c88abbb308463dbb761e159aafbf13 |
| institution | Directory Open Access Journal |
| issn | 2215-017X |
| language | English |
| last_indexed | 2024-12-22T00:18:06Z |
| publishDate | 2014-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biotechnology Reports |
| spelling | doaj.art-e4c88abbb308463dbb761e159aafbf132022-12-21T18:45:15ZengElsevierBiotechnology Reports2215-017X2014-12-014C808510.1016/j.btre.2014.09.005Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewaterBipro Ranjan DharHyung-Sool LeeThis study quantitatively assessed three limiting factors for current density in a microbial electrochemical cell (MXC) treating domestic wastewater: (1) buffer concentration, (2) biodegradability, and (3) particulates. Buffer concentration was not significant for current density in the MXC fed with filtered domestic wastewater (180 mg COD/L). Current density reduced by 67% in the MXC fed with filtered sewage having similar COD concentration to acetate medium, which indicates poor biodegradability of soluble organics in the wastewater. Particulate matters seriously decreased current density down to 76%, probably due to the accumulation of particulates on biofilm anode. Our study quantitatively showed that buffer concentration does not limit current density much, but biodegradability of soluble organics and fermentation rate of particulate matters in domestic wastewater mainly control current density in MXCs.http://www.sciencedirect.com/science/article/pii/S2215017X14000393AlkalinityBiodegradabilityParticulatesDomestic wastewaterMicrobial Electrochemical cells |
| spellingShingle | Bipro Ranjan Dhar Hyung-Sool Lee Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater Biotechnology Reports Alkalinity Biodegradability Particulates Domestic wastewater Microbial Electrochemical cells |
| title | Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater |
| title_full | Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater |
| title_fullStr | Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater |
| title_full_unstemmed | Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater |
| title_short | Evaluation of limiting factors for current density in microbial electrochemical cells (MXCs) treating domestic wastewater |
| title_sort | evaluation of limiting factors for current density in microbial electrochemical cells mxcs treating domestic wastewater |
| topic | Alkalinity Biodegradability Particulates Domestic wastewater Microbial Electrochemical cells |
| url | http://www.sciencedirect.com/science/article/pii/S2215017X14000393 |
| work_keys_str_mv | AT biproranjandhar evaluationoflimitingfactorsforcurrentdensityinmicrobialelectrochemicalcellsmxcstreatingdomesticwastewater AT hyungsoollee evaluationoflimitingfactorsforcurrentdensityinmicrobialelectrochemicalcellsmxcstreatingdomesticwastewater |