用生化工艺与末端吸附技术处理印染废水  

Biochemical process and terminal adsorption technology for the treatment of printing and dyeing wastewater

作　　者：王博 王宁[1] 刘永红[1] 王全红 梁世飘 WANG Bo;WANG Ning;LIU Yonghong;WANG Quanhong;LIANG Shipiao(School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China;Pingyang Quality Inspection and Testing Institute, Wenzhou 325400, Zhejiang, China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048 [2]平阳县质量检验检测研究院,浙江温州325400

出　　处：《西安工程大学学报》2022年第3期71-76,92,共7页Journal of Xi’an Polytechnic University

基　　金：国家自然科学基金青年科学基金项目(22008188);陕西省水利厅科技计划项目(2017slkj-9);柯桥纺织产业创新研究院产学研协同创新项目(19KQZD06)。

摘　　要：研究一体化工艺对印染废水处理效果,采用AMC/UASB-PBG/MBBR生化工艺处理咸阳某厂印染废水(COD 2300~3500 mg/L,氨氮12~25 mg/L,色度256~512倍),并考察了自制PANI/PVA吸附剂对生化工艺出水氨氮和色度的处理效果。结果表明:废水COD去除率达到80%,色度从256倍降至64倍,出水氨氮质量浓度为9.2 mg/L;生化工艺出水经自制吸附剂处理后氨氮质量浓度降至5.7 mg/L,色度从64倍降至16倍。SEM发现成熟AMC厌氧颗粒污泥表面主要聚集球菌、杆菌和丝状菌,PBG好氧载体表面及内部富集大量丝状菌和球菌。2种生物载体具有良好的微生物富集能力,可有效提高系统有机物质降解能力。光学显微镜发现PBG载体生物膜出现轮虫、草履虫等微生物,并形成了较长食物链。经过42 d的生产实际运行,结果表明AMC/UASB-PBG/MBBR生化工艺联合PANI/PVA吸附剂具有较好的处理效果。In order to research the treatment effect of integrated process on printing and dyeing wastewater,the AMC/UASB-PBG/MBBR biochemical process was used to treat printing and dyeing wastewater(COD 2300~3500 mg/L,ammonia nitrogen 12~25 mg/L,chromaticity 256~512 times)from a factory in Xianyang,and the effect of PANI/PVA adsorbent on the treatment of ammonia nitrogen and chromaticity in the effluent of the biochemical process was studied.The results show that the wastewater COD removal rate reached 80%,the chromaticity decreased from 256 to 64 times,and the effluent ammonia nitrogen mass concentration was 9.2 mg/L;the ammonia nitrogen mass concentration decreased to 5.7 mg/L and the chromaticity decreased from 64 to 16 times after the biochemical process effluent was treated with the homemade adsorbent;SEM revealed that the surface of mature AMC anaerobic granular sludge mainly aggregated cocci,bacilli and filamentous bacteria,and the surface and interior of PBG aerobic carrier were enriched with a large number of filamentous bacteria and cocci.The two biological carriers had good microbial enrichment ability,which could effectively improve the degradation capacity of the system organic matter.The optical microscope revealed the proesence of mircoorganisms such as rotifers and paramecium in the PBG carrier biofilm,and a long food chain was formed.After 42 d of actural operation in production,the AMC/UASB-PBG/MBBR biochemical process combined with PANI/PVA adsorbent has a good treatment effect.

关 键 词：印染废水 AMC载体 PBG载体 吸附 

分 类 号：TS190.3[轻工技术与工程—纺织化学与染整工程] X791[轻工技术与工程—纺织科学与工程]