IFAS工艺处理实验室废水应用研究  

Application of IFAS Process to Treat Laboratory Wastewater

作　　者：马森林 杨惠兰 杜世章[3] 陈杨武 刘健 谭周亮[2] MA Sen-lin;YANG Hui-lan;DU Shi-zhang;CHEN Yang-wu;LIU Jian;TAN Zhou-liang(College of Resources and Environment Engineering,Mianyang Teachers'College,Mianyang Sichuan 621006,China;不详)

机构地区：[1]绵阳师范学院资源环境工程学院,四川绵阳621006 [2]中国科学院环境与应用微生物重点实验室,四川成都610041 [3]绵阳师范学院生命科学与技术学院,四川绵阳621006

出　　处：《环境科学导刊》2021年第3期52-57,共6页Environmental Science Survey

基　　金：四川省重点研发计划(2019YFG0322);成都市重点研发计划项目(2018YF-05-00451-SN);中国科学院青年创新促进会(2016331)资助。

摘　　要：实验室废水由于水质波动大,成分来源复杂,可能含有某些有毒有害物质,而难以有效处理。本研究以某科研机构实验楼排放的实验室废水为研究对象,采用生物膜-活性污泥复合工艺(IFAS)处理的方法,探究不同时间段实验室废水的产排特征,并通过添加化粪池污水调节实验室废水水质水量,考察IFAS工艺对实验废水COD、NH_(3)-N等污染物的去除效果及其抗冲击性能。研究结果表明,当实验室废水COD、NH_(3)-N分别为13.88~766.99mg/L,0.35~5.76mg/L时,通过调节实验室废水和化粪池污水的比例,实验室废水的可生化性、毒性和冲击负荷得到改善;同时,实验室废水和化粪池污水在2∶1配比条件下,经过IFAS工艺处理后其出水COD、NH_(3)-N浓度均可达到《GB 8978-1996污水综合排放标准》中的一级排放标准。另外,研究发现IFAS工艺具有良好的抗冲击负荷性能。Laboratory wastewater is difficult to be effectively treated due to large fluctuations in water quality and complex sources of ingredients,which may contain certain toxic and hazardous substances.In this study,the laboratory wastewater discharged from a scientific research institution was sampled as the research object,and the integrated fixed-film activated sludge(IFAS)process treatment method was adopted to explore the characteristics of production and discharge of laboratory wastewater at different time periods.Meanwhile,the water quality and quantity of laboratory wastewater were regulated by adding septic tank sewage,the IFAS process was used to investigate the removal effect and impact resistance of experimental wastewater COD,NH_(3)-N and other pollutants.The results illustrated that the biodegradability,toxicity and impact load of laboratory wastewater could be improved by mixingthe lab wastewater with the septic tank wastewater in a ratio of 2∶1,when the laboratory wastewater COD and NH_(3)-N were 13.88~766.99mg/L and 0.35~5.76mg/L,respectively.The COD and NH_(3)-N concentration of the effluent after treatment by IFAS process could reach the first-level emission standards in“sewage comprehensive discharge standard”(GB 8978-1996).Additionally,the study also found that IFAS process had good impact load resistance.

关 键 词：生物膜-活性污泥复合工艺 实验室废水 化粪池污水 冲击负荷 应用 

分 类 号：X703[环境科学与工程—环境工程]