Effect of hydraulic retention time on electricity generation using a solid plain-graphite plate microbial fuel cell anoxic/oxic process for treating pharmaceutical sewage
| Autor: | Wei-L Chao, Wann-N Jane, Ting-J Chang, Yun-H Chang, Yi-T. Chang |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Environmental Engineering Microbial fuel cell Drug Industry Hydraulic retention time Bioelectric Energy Sources Nitrogen Industrial Waste Sewage 010501 environmental sciences 01 natural sciences Comamonadaceae Bioreactors Electricity Bacterial nanowires 010608 biotechnology Leptothrix Graphite 0105 earth and related environmental sciences Power density Nanowires business.industry General Medicine equipment and supplies Pulp and paper industry Anoxic waters Carbon Biodegradation Environmental Electricity generation Biofilms Environmental science business |
| Zdroj: | Journal of Environmental Science and Health, Part A. 53:1185-1197 |
| ISSN: | 1532-4117 1093-4529 |
| Popis: | Treatment efficiency and electricity generation were evaluated using a solid plain-graphite plate microbial fuel cell (MFC) anoxic/oxic (A/O) process that treated pharmaceutical sewage using different hydraulic retention times (HRT). Short HRTs increased the volumetric organic loading rate, thereby reducing the MFC performance due to rapid depletion of the substrate (carbon/nitrogen source). The COD removal efficiency decreased from 96.28% at a HRT of 8 h to 90.67% at a HRT of 5 h. The removal efficiency of total nitrogen was reduced from 74.16% at a HRT of 8 h to 53.42% at a HRT of 5 h. A shorter HRT decreased the efficiency in treatment of the pharmaceutical products (PPs), which included acetaminophen, ibuprofen and sulfamethoxazole in an aerobic reactor because these antibiotic compounds inhibited the microbial activity of the aerobic activated sludge in the MFC A/O system. The average power density and coulombic efficiency values were 162.74 mW m |
| Databáze: | OpenAIRE |
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