有机胺与香料生产复合化工废水处理工程实例
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摘要
针对盐城市某化工企业生产有机胺和香料2种产品产生的化工废水,采用在2个工段各铺设2套管网对每个工段产生的高低COD废水进行分类收集、处理,利用"铁炭微电解+Fenton催化氧化+中和+絮凝沉淀"工艺处理高COD废水,其出水与低COD废水混合,再通过"水解酸化+A/O+MBR+氧化池(应急用)"组合工艺处理。实际运行结果表明,出水COD为465 mg/L,SS、NH4+-N、TP、TN、甲醛、甲苯的质量浓度分别为350、45、1.7、52、0.08、0.1mg/L,各指标均优于《关于〈盐城市沿海化工园区环境影响评价与环境保护规划报告〉的批复》(苏环管[2003]90号)中园区污水处理厂的接管标准,处理费用为9.37元/m~3。
In view of the chemical wastewater produced by two products production by a chemical industry Co., Ltd. in Yancheng City, two sets of pipelines in two sections to collecting and processing the high and low COD wastewater from each section were built. High-COD wastewater was treated by the process of 'iron-carbon microelectrolysis + Fenton catalytic oxidation + neutralization + flocculation precipitation', which effluent was mixed with lowCOD wastewater, and then treated by combination process of 'hydrolysis acidification +A/O + MBR + oxidation pool(emergency)'. The actual operation results showed that, effluent COD was 465 mg/L, mass concentration of SS, NH_4~+-N, TP, TN, methanal and methylbenzene was 350, 45, 1.7, 52, 0.08 and 0.1 mg/L respectively, each indicator was better than the 'Treatment Standards for Sewage Treatment Plants in Yancheng Chemical Concentration Zone(Trial)'(Suhuanguan [2003]), and the treatment cost was 9.37 yuan/m~3.
In view of the chemical wastewater produced by two products production by a chemical industry Co., Ltd. in Yancheng City, two sets of pipelines in two sections to collecting and processing the high and low COD wastewater from each section were built. High-COD wastewater was treated by the process of 'iron-carbon microelectrolysis + Fenton catalytic oxidation + neutralization + flocculation precipitation', which effluent was mixed with lowCOD wastewater, and then treated by combination process of 'hydrolysis acidification +A/O + MBR + oxidation pool(emergency)'. The actual operation results showed that, effluent COD was 465 mg/L, mass concentration of SS, NH_4~+-N, TP, TN, methanal and methylbenzene was 350, 45, 1.7, 52, 0.08 and 0.1 mg/L respectively, each indicator was better than the 'Treatment Standards for Sewage Treatment Plants in Yancheng Chemical Concentration Zone(Trial)'(Suhuanguan [2003]), and the treatment cost was 9.37 yuan/m~3.
引文
[1]李朦,郭淑琴.综合化工废水处理技术的研究进展[J].工业用水与废水,2014(4):5-8.
[2]丁春生,李达钱.化工废水处理技术与发展[J].浙江工业大学学报,2005,33(6):47-51.
[3]施国健,王晨,章双双等.UBF+A/O+MBR组合工艺在化工废水处理中的实际应用[J].水处理技术,2017,43(10):131-133.
[4]芦昱,张艳,陆朝阳.化工废水深度处理技术研究进展[J].精细与专用化学品,2012(9):31-34.
[5]江苏省环境保护厅.关于对盐城市沿海化工园区环境影响评价与环境保护规划报告书的批复:苏环管[2003]90号[A].2003-04-30.
[6]斯皮思R E.工业废水的厌氧生物处理[M].李亚新,译.北京:中国建筑工业出版社,2001:26-28.
[2]丁春生,李达钱.化工废水处理技术与发展[J].浙江工业大学学报,2005,33(6):47-51.
[3]施国健,王晨,章双双等.UBF+A/O+MBR组合工艺在化工废水处理中的实际应用[J].水处理技术,2017,43(10):131-133.
[4]芦昱,张艳,陆朝阳.化工废水深度处理技术研究进展[J].精细与专用化学品,2012(9):31-34.
[5]江苏省环境保护厅.关于对盐城市沿海化工园区环境影响评价与环境保护规划报告书的批复:苏环管[2003]90号[A].2003-04-30.
[6]斯皮思R E.工业废水的厌氧生物处理[M].李亚新,译.北京:中国建筑工业出版社,2001:26-28.