| 吴诗淳,黄福勇,何培民,邵留.水力停留时间强化复合载体基固定化藻菌系统处理低C/N废水脱氮[J].农业环境科学学报,2024,43(7):1632-1638. |
| 水力停留时间强化复合载体基固定化藻菌系统处理低C/N废水脱氮 |
| Nitrogen removal from low-C/N-wastewater using immobilized algal-bacteria on composite carriers strength? ened by hydraulic retention time |
| 投稿时间：2023-09-20 |
| DOI：10.11654/jaes.2023-0780 |
| 中文关键词: 低C/N废水 固定化藻菌 脱氮 |
| 英文关键词: wastewater with low C/N immobilized algae-bacteria nitrogen removal |
| 基金项目:上海市科委重大研发项目（19DZ1204500）；“十三五”水体污染控制与治理科技重大专项（2017ZX07205） |
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| 中文摘要: |
| 为探索一种低C/N废水脱氮新技术，本研究将绿沸石和玉米芯组成复合载体，以小球藻和活性污泥为接种物，通过吸附法构建固定化藻菌系统（IABS），探究了装置的脱氮效果及水力停留时间（HRT）对脱氮效率的影响。研究结果表明，复合载体可有效改善废水的C/N，构建的固定化藻菌系统可实现低C/N废水中氮素的有效去除。装置脱氮效果随着HRT的延长而提升，当HRT达18 h时，装置的总氮去除率最高可达98%；氨氮去除率可达100%。综合而言，绿沸石和玉米芯复合载体构建的固定化藻菌系统具有脱氮效率高、无需连续投加碳源、出水水质稳定等优点。 |
| 英文摘要: |
| 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. |
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