微生物燃料电池耦合光催化技术降解葡萄酒清洗废水研究
Study on Degradation of Wine Production Wastewater by Microbial Fuel Cell Coupled Photocatalytic Technology
张秀丽 1王延明 1李春虎2
作者信息
- 1. 青岛工程职业学院,山东 青岛 266111
- 2. 中国海洋大学,山东 青岛 264200
- 折叠
摘要
光催化耦合微生物降解技术,在微生物代谢后期,污水中 COD 下降到光催化剂反应的范围,利用光能激发催化反应,将有机物质氧化成活性基团,可以将水体中难降解的有机物分解.以碳棒作为阳极,以碳布材料作为阴极,以负载TiO2 的活性炭作为生物载体,构建微生物燃料电池体系.葡萄酒废水酸性环境下微生物的生长缓慢,当阳极底物质量浓度由1 000 mg·L-1 增大到3 000 mg·L-1 时,COD去除率由较低水平的67%增大到较高水平的 92%.在一定范围内,随着阳极底物质量浓度的增加,COD 的去除率也有所增加.当阳极底物质量浓度由3 000 mg·L-1 增大到4 500 m·L-1 时,COD去除率由92%减小到81%,光催化的引入对处理低浓度的氨氮、总磷和COD效果均高于90%.
Abstract
During using photocatalytic coupling microbial degradation technology,in the late stage of microbial metabolism,COD in sewage is reduced to the range of photocatalytic reaction,and light energy is used to stimulate catalytic reaction to oxidize organic substances into active groups,which can decompose refractory organic substances in water.A microbial fuel cell system was constructed by using carbon rods as anodes,carbon cloth materials as cathodes,and activated carbon loaded with TiO2 as biological carriers.The growth of microorganisms in the acidic environment of wine wastewater was slow.When the mass concentration of anode substrate increased from 1 000 mg·L-1 to 3 000 mg·L-1,the COD removal rate increased from 67%to 92%.The mass concentration of anode substrate increased to a certain extent,and the removal rate of COD in the anode chamber of MFC increased accordingly.When the anode substrate mass concentration was increased from 3 000 mg·L-1 to 4 500 m·L-1,the COD removal rate decreased from 92%to 81%.The removal rates of ammonia nitrogen,total phosphorus and COD under low concentrations were more than 90%after the introduction of photocatalysis.
关键词
COD降解/生物催化反应/输出电压/光催化活性Key words
COD degradation/Biocatalytic reaction/Output voltage/Photocatalytic activity引用本文复制引用
基金项目
青岛市民生科技计划(17-3-3-71-nsh)
山东省教育教学研究课题(2020)(2020JXQ029)
青岛市社会科学基金规划项目(QDSKL2201347)
青岛市社会科学基金规划项目(QDSKL2201346)
出版年
2024
NETL
NSTL
万方数据