微生物辅助铁炭微电解与生化组合工艺处理酚醛废水  

Treatment of phenolic wastewater by microbiological assisted iron-carbon microelectrolysis and biochemical process

作　　者：潘小芳[1] 宁静 吕楠 李俊杰 周铭典 王汝明 朱葛夫[1] PAN Xiaofang;NING Jing;LYU Nan;LI Junjie;ZHOU Mingdian;WANG Ruming;ZHU Gefu(Key Laboratory of Urban Pollutant Conversion,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院城市环境研究所,中国科学院城市污染物转化重点实验室,厦门361021 [2]中国科学院大学,北京100049

出　　处：《环境工程学报》2021年第3期972-981,共10页Chinese Journal of Environmental Engineering

基　　金：国家重点研发计划项目(2018YFD0500202-04);国家自然科学基金资助项目(21477122,51678553,51808525,21876167);厦门市科技计划项目(3502Z20182003);厦门市水环境安全与水质保障工程技术研究中心创新基金项目(WES&WQGE201901);中国科学院战略重点研究项目(XDA23030301)。

摘　　要：为实现酚醛废水的高效低成本处理,开发了“微生物辅助铁炭微电解-厌氧折流板反应器耦合微生物电解池(ABR-MECs)-序批式活性污泥法(SBR)”组合工艺。应用该工艺对酚醛树脂生产废水进行了处理,结果表明:采用微生物辅助铁炭微电解进行预处理,可大大提高酚醛废水的可生化性,降低工艺预处理成本;厌氧段ABR-MECs工艺可实现苯酚90.20%~94%的去除,甲醛97%的去除;好氧段SBR工艺出水中COD<100 mg·L^(−1),苯酚浓度<1 mg·L^(−1),甲醛未检出,达到《中华人民共和国污水综合排放标准》(GB 8978-1996)的三级排放标准。组合工艺中预处理成本约为10.48元·m^(−3),厌氧处理的成本约为22.35元·m^(−3),相较于常规处理工艺,具有一定的成本优势。以上研究结果可为实现酚醛废水高效低成本去除提供参考。The combined process of microbiological assisted iron-carbon micro electrolysis pretreatmentanaerobic baffle reactor coupled microbial cell(ABR-MECs)-sequencing batch activated sludge reactor(SBR)was developed for cost-effectively treating phenolic resin production wastewater,the experimental results showed that microbiological assisted iron-carbon microelectrolysis pretreatment could greatly improve the biodegradability of wastewater,and reduce the cost of the process.After the ABR-MECs process,90.20%to 94%phenol and 97%formaldehyde could be removed.The effluent COD from SBR process was lower than 100 mg·L^(−1),phenol concentration was lower than 1 mg·L^(−1),and formaldehyde could not be detected,which meets the third level discharge standard of the People’s Republic of China comprehensive sewage discharge standard(GB 8978-1996).The pretreatment cost in the combined process was about 10.48 yuan·m^(−3),and the cost of anaerobic treatment was about 22.35 yuan·m^(−3).Compared to traditional treatment process,it has a certain cost advantage.This can provide reference for high-effective and low-cost removal for phenolic wastewater.

关 键 词：酚醛废水 微生物辅助铁炭微电解 ABR-MECs SBR 组合工艺 

分 类 号：X703.1[环境科学与工程—环境工程]