[1]吴卿,莫文君,李倩男,等.植物阴极-沉积型微生物燃料电池处理含铬废水[J].中国给水排水,2024,40(7):27-35.
　WUQing,MOWen-jun,LIQian-nan,et al.Plant Cathode-Sediment Microbial Fuel Cell for Restoration of Chromium-containing Wastewater[J].China Water & Wastewater,2024,40(7):27-35.
点击复制

植物阴极-沉积型微生物燃料电池处理含铬废水

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第7期 页码: 27-35 栏目: 出版日期: 2024-04-01
Title:
Plant Cathode-Sediment Microbial Fuel Cell for Restoration of Chromium-containing Wastewater
作者:
吴卿， 莫文君， 李倩男， 刘洁琼， 彭森
（天津大学 环境科学与工程学院，天津 300350）
Author(s):
WU　Qing， MO　Wen-jun， LI　Qian-nan， LIU　Jie-qiong， PENG　Sen
（School of Environmental Science and Technology， Tianjin University， Tianjin 300350， China）
关键词:
植物阴极-沉积型微生物燃料电池;  含铬废水;  底泥;  阴极材料
Keywords:
plant cathode-sediment microbial fuel cell;  chromium-containing wastewater;  sediment;  cathode material
摘要:
应用植物阴极-沉积型微生物燃料电池（PC-SMFC）系统处理含铬废水及沉积物，探究了阴极材料和植物对PC-SMFC系统去除污染物效果及产电性能的影响。结果表明，以不锈钢网为阴极集电装置、菖蒲为植物的PC-SMFC装置的处理效果最佳，当上覆水Cr6+初始浓度为108.14 mg/L、COD初始浓度为978 mg/L时，可获得的最大输出电压和输出功率密度分别为0.499 0 V和14.87 mW/m2，对上覆水中COD、Cr6+的去除率分别为93.66%和99.29%，对沉积物中有机质和Cr6+的去除率分别为15.69%和79.11%，对总铬的固定率为65.33%。经PC-SMFC系统处理后，各装置沉积物中生物有效态铬向较为稳定的铁锰结合态和残渣态铬转化，即PC-SMFC对稳定沉积物中的铬具有促进意义。
Abstract:
This paper applied the plant cathode-sediment microbial fuel cell (PC-SMFC) system to treat chromium-containing wastewater and sediment, and investigated the effects of cathode materials and plants on the pollutants removal performance and power generation capacity of the PC-SMFC system. The PC-SMFC with cathode current collector of stainless steel mesh and plant of calamus showed the best treatment performance. When the initial concentration of Cr6+ and COD in the overlying water was 108.14 mg/L and 978 mg/L, the maximum output voltage and power density were 0.499 0 V and 14.87 mW/m2, respectively. The removal rates of COD and Cr6+ in the overlying water were 93.66% and 99.29% respectively, the removal rates of organic matter and Cr6+ in the sediment were 15.69% and 79.11% respectively, and the fixation rate of total chromium was 65.33%. After treatment by the PC-SMFC system, the bioavailable chromium in the sediments of each system was transformed into stable Fe-Mn binding state and residual chromium, meaning that PC-SMFC promoted the stabilization of chromium in the sediment.
更新日期/Last Update: 2024-04-01