华南农业大学学报2025，Vol.46Issue(2)：222-229,8.DOI:10.7671/j.issn.1001-411X.202406037
厌氧氨氧化污泥耦合小球藻的双生物微生物燃料电池处理养殖废水研究
Aquaculture wastewater disposal through dual microbial fuel cell constructed by coupling anaerobic ammonia oxidation sludge and chlorella
摘要
Abstract
[Objective]To construct the dual microbial fuel cell(DMFC)by coupling anaerobic ammonia oxidation sludge and chlorella,hoping to remove the high concentration of nitrogen,phosphorus and organic matter in aquaculture wastewater while generating electricity,and provide a new way for aquaculture wastewater disposal and bioenergy preparation.[Method]The anaerobic ammonia oxidation sludge was mixed with simulated wastewater at the volume ratio of 1∶4 and added to the anode chamber,while chlorella was mixed with BG-11 medium at the volume ratio of 1∶4 and added to the cathode chamber.After running for 24 h,the anode chamber began to discharge water,which was then added to the cathode chamber.The system was maintained at a constant temperature and a light-dark cycle mode.The voltage,mass concentrations of ammonia nitrogen/NO2--N/NO3--N/total phosphorus,soluble chemical oxygen demand(SCOD)and pH of wastewater were monitored during the system running.[Result]There was an obvious electron exchange between the anaerobic ammonia oxidation sludge and chlorella,and the system had good electricity generation performance,the positive and negative peak voltages of DMFC in the stable operation stage were 45 and-125 mV respectively.The ammonia nitrogen mass concentration decreased from 1 588.97 mg/L to 602.75 mg/L,with the removal rate of 62.07%;The removal rates of NO2--N,total phosphorus and SCOD were 88.62%,54.45%and 63.72%respectively.The system operated stably at pH 9.5.[Conclusion]This study successfully establishes a DMFC system constructed by coupling anaerobic ammonia oxidation sludge and chlorella.The system not only effectively removes nitrogen,phosphorus and reduces organic matter concentration,but also continuously generates electricity,providing an effective way to address environmental and energy issues simultaneously.关键词
厌氧氨氧化污泥/小球藻/微生物燃料电池/氨氮/总磷/可溶性化学需氧量/pHKey words
Anaerobic ammonia oxidation sludge/Chlorella/Microbial fuel cell/Ammonia nitrogen/Total phosphorus/Soluble chemical oxygen demand/pH分类
资源环境引用本文复制引用
唐方毅,薛溢涵,贾律伦,林云琴..厌氧氨氧化污泥耦合小球藻的双生物微生物燃料电池处理养殖废水研究[J].华南农业大学学报,2025,46(2):222-229,8.基金项目
广东省科技厅项目(2022A0505050063,KTP20210207) （2022A0505050063,KTP20210207）
国家自然科学基金(42377475) （42377475）
广州市科技局项目(2024E04J0001) （2024E04J0001）
