高氨印染废水脱氮处理技术与工程应用  

Technology and engineering application of printingand dyeing wastewater with high ammonia

作　　者：王忠泉 郑威城 娄小丹 秦树林 WANG Zhongquan;ZHENG Weicheng;LOU Xiaodan;QIN Shulin(CCTEG Hangzhou Research Institute,Hangzhou 311201,China)

机构地区：[1]中煤科工集团杭州研究院有限公司,浙江杭州311201

出　　处：《工业水处理》2021年第11期134-137,共4页Industrial Water Treatment

基　　金：中国煤炭科工集团有限公司科技创新创业资金专项项目(2021)。

摘　　要：研究了多段复合A-MABFT-A工艺在高氨印染废水脱氮处理工程中的应用。工程实践证明:对于进水NH3-N为120~300 mg/L、TN为150~380 mg/L、COD为400~800 mg/L的低碳氮比高氨印花废水,在水温25~30℃,控制缺氧A池内DO为0.2~0.5 mg/L、MABFT池DO为2~5 mg/L,内回流比为300%条件下,通过生物增浓,系统出水水质达标,出水NH3-N<15 mg/L、TN<30 mg/L、COD<200 mg/L,总去除率分别为98.7%、90.2%、81.2%,满足并优于《纺织染整工业水污染物排放标准》(GB 4287—2012)表2间接排放标准,系统运行稳定。The application of multi-stage composite A-MABFT-A process in denitrification of high ammonia printing and dyeing wastewater was studied.Engineering practice proved that:for the low carbon nitrogen ratio high ammonia printing wastewater with influent NH3-N of 120-300 mg/L,TN of 150-380 mg/L and COD of 400-800 mg/L,under the conditions of water temperature of 25-30℃,control the DO in anoxic tank at 0.2-0.5 mg/L,DO in MABFT tank at 2-5 mg/L and internal reflux ratio of 300%.The effluent quality of the system met the standard through biological thickening:effluent NH3-N<15 mg/L,TN<30 mg/L and COD<200 mg/L.The total removal rates are 98.7%,90.2%and 81.2%respectively.It also met and exceed the indirect emission standard in Table 2 of the emission standard of Water Pollutants for Textile Dyeing and Finishing Industry(GB 4287—2012),and the system run stably.

关 键 词：低碳高氮 改进型曝气生物流化床(MABFT) 脱氮 生物增浓 

分 类 号：X703[环境科学与工程—环境工程]