混凝-BAF处理黑臭水体中试实验研究  

Pilot-scale Experimental Study on Black Odor Water by Coagulation-BAF

作　　者：刘君臣 张竹青[1] 冯志江 刘喆 刘瑞强 戴捷[1] LIU Junchen;ZHANG Zhuqing;FENG Zhijiang;LIU Zhe;LIU Ruiqiang;DAI Jie(College of Chemistry and Environmental Engineering,Yangtze University,434023;Yangtze University,Hubei Shanye Environmental Protection Technology Co.,Ltd,434000:Jingzhou,China)

机构地区：[1]长江大学化学与环境工程学院,434023 [2]湖北山叶环保科技股份有限公司,湖北荆州434000

出　　处：《水处理技术》2021年第3期114-118,共5页Technology of Water Treatment

基　　金：国家自然科学基金(21173026);湖北省自然科学基金重点项目(2013CFA107);荆州市科技局项目(2019006)。

摘　　要：以实际黑臭水体为样本,经混凝预处理后进行曝气生物滤池(BAF)的中试实验。结果表明,BAF系统挂膜启动时间为21 d,反冲洗周期为12 d;当停留时间1 h,气水体积比4:1时,系统运行状态最佳,COD、NH_(4)^(+)-N、TP去除率分别达到82%、90%、42%,出水满足GB 18918-2002一级A标准。探究污染物降解历程发现,COD降解主要发生在填料层0~60 cm高度,而氨氮降解主要发生在60~120 cm区间;三维荧光图谱显示原水有4个特征荧光峰,BAF系统显著降低了荧光特征峰强度,出水仅存微弱的类腐殖酸物质特征荧光峰。The pilot study of BAF was carried out after coagulation pretreatment with actual black and odorous water.The results showed that the startup time of the membrane culturing was 21 days and the backwash cycle was 12 days.When the residence time is 1 h and the gas-water ratio is 4:1,the system runs in the best state(COD,ammonia nitrogen and TP removal rates reach 82%,90%and 42%,respectively),and the effluent meets GB18918-2002 level 1 A standard.It was found by exploring the degradation process of pollutants that COD degradation mainly occurred at a height of 0~60 cm in the packing layer,while ammonia nitrogen degradation mainly occurred at a range of 60~120 cm.The 3 D-EEM showed that there were four characteristic fluorescence peaks in raw water,and the BAF system significantly reduced the intensity of the characteristic fluorescence peaks.

关 键 词：混凝 曝气生物滤池 黑臭水体 三维荧光光谱 

分 类 号：X52[环境科学与工程—环境工程]