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Indexed by:期刊论文
Date of Publication:2017-08-25
Journal:膜科学与技术
Included Journals:CSCD
Volume:37
Issue:4
Page Number:114-121
ISSN No.:1007-8924
Key Words:膜阴极;光催化型微生物燃料电池;杀菌;水处理
Abstract:用水热法合成Ag/RGO/BiVO4,涂覆在不锈钢网上制备得到膜电极,此膜电极兼具光催化、电催化及过滤、杀菌性能.膜组件形式的阴极与生物阳极构建成由离子交换膜分隔的两室水净化处理和产电系统,该系统在阴极膜过滤出水条件下,模拟连续运行的水处理工艺,净化实际景观水(含有藻类、COD和氨氮等污染物).当水力停留时间为12 h时,阴极去除COD68％,平均878 mg/(m2·h),氨氮去除68.4％,且经阴极膜组件过滤后的出水较原液明显清澈;阳极室中总氮去除21％,COD去除87.5％.与处理实际景观水相比,系统对单一污染物四环素的去除效率更高(86％).此外,系统最大产电功率和开路电压分别为285.6 mW/m2,0.361 V;阴极光电催化降解四环素的主要活性物种为·O2-和h+;光照下膜电极能够抑制粪大肠杆菌,进一步提高出水品质.
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