|
| Nitrogen removal from low-C/N-wastewater using immobilized algal-bacteria on composite carriers strength? ened by hydraulic retention time |
| Received:September 20, 2023 |
| View Full Text View/Add Comment Download reader |
| KeyWord:wastewater with low C/N;immobilized algae-bacteria;nitrogen removal |
| Author Name | Affiliation | E-mail | | WU Shichun | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China | | | HUANG Fuyong | Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310022, China | | | HE Peimin | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China | | | SHAO Liu | College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China | l-shao@shou.edu.cn |
|
| Hits: 1645 |
| Download times: 1353 |
| Abstract: |
| Chlorella vulgaris and activated sludge were immobilized using green zeolite and corncob as composite carriers to explore a new method for removing nitrogen from wastewater with low C/N. We investigated the denitrification capacity of immobilized algae-bacteria system（IABS）and hydraulic retention time（HRT）on denitrification efficiency. The composite carrier effectively optimized the C/N of wastewater, and the constructed immobilized algae-bacteria system effectively removed nitrogen from wastewater with low C/N. The denitrification effect of the device increased with longer HRT. With an HRT of 18 h, the removal rate of TN and NH4+-N reached up to 98% and 100%, respectively. The immobilized algae-bacteria system constructed by the composite carrier of green zeolite and corncob efficiently removes nitrogen without needing to continuously add a carbon source and has stable effluent quality. |
|
|
|
