工业园区污水厂水质特征及提标改造前景探析
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摘要
以天津市2座典型工业园区污水处理厂为对象,对出水水质检测与污水处理工艺进行分析,解析其提标改造前景。结果表明,2座污水处理厂进水水质可生化性较差,不利于生物反硝化过程。出水A厂中COD、SS含量较DB12/599-2015超标严重,分别是标准的1.4倍和2.3倍;B厂NH3-N和TP较DB 12/599-2015超标严重,分别是标准的4.2倍和2.3倍。结合水处理工艺,建议A厂增加臭氧氧化工艺及过滤池或其他深度处理工艺以去除废水中的难降解COD;B厂可通过投加除磷剂、优化生物脱氮工序来实现出水达标。
Two typical industrial park sewage treatment plants in Tianjin were taken as objects, through the analysis of effluent water quality testing and sewage treatment process, the prospect of upgrading and reconstruction was analyzed. The results showed that, the influent water biodegradability of both plants was poor, which was not conducive to the biological denitrification process. The effluent concentration of COD and SS of plant A exceeded by 1.4 and 2.3 times of the standard of DB 12/599-2015, respectively. The effluent concentration of NH3-N and TP of plant B exceeded by 4.2 and 2.3 times of the standard of DB 12/599-2015, respectively. Therefore, chemical coagulant could be added directly in secondary sedimentation tank and ozone oxidation process could be added to remove refractory COD from wastewater for plant A. The problem of plant B could be solved by adding phosphorus remover and optimizing nitrogen biological removal process.
Two typical industrial park sewage treatment plants in Tianjin were taken as objects, through the analysis of effluent water quality testing and sewage treatment process, the prospect of upgrading and reconstruction was analyzed. The results showed that, the influent water biodegradability of both plants was poor, which was not conducive to the biological denitrification process. The effluent concentration of COD and SS of plant A exceeded by 1.4 and 2.3 times of the standard of DB 12/599-2015, respectively. The effluent concentration of NH3-N and TP of plant B exceeded by 4.2 and 2.3 times of the standard of DB 12/599-2015, respectively. Therefore, chemical coagulant could be added directly in secondary sedimentation tank and ozone oxidation process could be added to remove refractory COD from wastewater for plant A. The problem of plant B could be solved by adding phosphorus remover and optimizing nitrogen biological removal process.
引文
[1]城镇污水处理厂污染物排放标准:DB12/599-2015[S].
[2]天津市污水综合排放标准:DB12/356-2018[S].
[3]城镇污水处理厂污染物排放标准:GB 18918-2002[S].
[4]刘红磊,李安定,邵晓龙,等.天津市《城镇污水处理厂污染物排放标准》解读[J].城市环境与城市生态,2015(6):22-28.
[5]王翼,吴昌永,周岳溪,等.Fenton氧化深度处理石化废水厂二级出水研究[J].环境科学,2015(7):2597-2603.
[6]李庆,王志国,丁士兵.石化工业园区污水处理厂升级改造技术探讨[J].污染防治技术,2016(2):53-58.
[7]沈卓贤,胡殿国.工业园区集中式污水厂提标改造工艺研究[J].绿色科技,2016(14):82-83.
[8]许丹宁,古明哲,代蓓蓓,等.臭氧氧化对常减压装置电脱盐二级出水的作用机制[J].现代化工,2018,38(5):170-173.
[9]吴伟,余昂.印染废水为主的园区污水处理厂运行问题及对策———以苏南某经济开发区污水处理厂为例[J].常州工学院学报,2015,28(5):47-52.
[10]张万里,蒋岚岚,陈秋萍,等.无锡市城镇污水处理厂提标改造措施及效果[J].中国给水排水,2010,26(2):23-27.
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[12]李伟,卢东昱,陈永玲,等.北京市某污水厂基于准地表Ⅲ类水体出水标准的工程实践[J].中国给水排水,2017(2):56-60.
[13]关伟,郭会平,赵学洋,等.我国城市污水处理现状及城市污水处理厂提标改造路径分析[J].辽宁大学学报(自然科学版),2015,42(4):378-384.
[14]戴小冬.盐城经济技术开发区污水处理厂提标改造工程设计研究[J].环境科学与管理,2017,42(5):110-114.
[15]陈迪嘉.二级污水处理厂提标改造方案研究[D].天津:天津大学,2013.
[16]郭会平.我国城市污水处理现状及污水处理厂提标改造路径分析[D].沈阳:辽宁大学,2016.
[17]胡斌.某皮革工业区中心污水处理厂出水氨氮超标的解决方法[J].资源节约与环保,2015(8):50-50.
[2]天津市污水综合排放标准:DB12/356-2018[S].
[3]城镇污水处理厂污染物排放标准:GB 18918-2002[S].
[4]刘红磊,李安定,邵晓龙,等.天津市《城镇污水处理厂污染物排放标准》解读[J].城市环境与城市生态,2015(6):22-28.
[5]王翼,吴昌永,周岳溪,等.Fenton氧化深度处理石化废水厂二级出水研究[J].环境科学,2015(7):2597-2603.
[6]李庆,王志国,丁士兵.石化工业园区污水处理厂升级改造技术探讨[J].污染防治技术,2016(2):53-58.
[7]沈卓贤,胡殿国.工业园区集中式污水厂提标改造工艺研究[J].绿色科技,2016(14):82-83.
[8]许丹宁,古明哲,代蓓蓓,等.臭氧氧化对常减压装置电脱盐二级出水的作用机制[J].现代化工,2018,38(5):170-173.
[9]吴伟,余昂.印染废水为主的园区污水处理厂运行问题及对策———以苏南某经济开发区污水处理厂为例[J].常州工学院学报,2015,28(5):47-52.
[10]张万里,蒋岚岚,陈秋萍,等.无锡市城镇污水处理厂提标改造措施及效果[J].中国给水排水,2010,26(2):23-27.
[11]武晨,于明,李论,等.印染工业园区污水处理厂升级改造技术探讨[J].环境科学导刊,2015(6):69-75.
[12]李伟,卢东昱,陈永玲,等.北京市某污水厂基于准地表Ⅲ类水体出水标准的工程实践[J].中国给水排水,2017(2):56-60.
[13]关伟,郭会平,赵学洋,等.我国城市污水处理现状及城市污水处理厂提标改造路径分析[J].辽宁大学学报(自然科学版),2015,42(4):378-384.
[14]戴小冬.盐城经济技术开发区污水处理厂提标改造工程设计研究[J].环境科学与管理,2017,42(5):110-114.
[15]陈迪嘉.二级污水处理厂提标改造方案研究[D].天津:天津大学,2013.
[16]郭会平.我国城市污水处理现状及污水处理厂提标改造路径分析[D].沈阳:辽宁大学,2016.
[17]胡斌.某皮革工业区中心污水处理厂出水氨氮超标的解决方法[J].资源节约与环保,2015(8):50-50.