AO/OAO/Fenton两级生物法处理工业园区内焦化废水

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英文篇名：Design of Coking Wastewater Treatment by Two-stage Biological Process of AO + OAO + Fenton in Industrial Park 作者：韩小刚 ; 韩立辉 ; 陈星 ; 高迎新 ; 杨敏 英文作者：HAN Xiao-gang;HAN Li-hui;CHEN Xing;GAO Ying-xin;YANG Min;State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Tangshan Zhongke Green Environmental Technology Co.Ltd.;Institute of Industry and Equipment Technology,Hefei University of Technology; 关键词：焦化废水 ; 两级生物处理 ; 硝化反硝化 ; 抗冲击能力 英文关键词：coking wastewater;;two-stage biological treatment;;nitrification and denitrification;;impact resistance 中文刊名：GSPS 英文刊名：China Water & Wastewater 机构：中国科学院生态环境研究中心环境水质学国家重点实验室;中国科学院大学;唐山中科格润环境技术有限公司;合肥工业大学工业装备与技术研究院; 出版日期：2019-01-17 出版单位：中国给水排水 年：2019 期：v.35;No.478 基金：中国科学院STS区域重点项目 语种：中文; 页：GSPS201902015 页数：5 CN：02 ISSN：12-1073/TU 分类号：63-67

摘要

针对某市工业园区5 000 m~3/d焦化废水处理出水水质难以稳定达标的问题,首次采用"前端各厂AO预处理—后端园区OAO+Fenton深度处理"的工艺模式,极大地提高了系统抗冲击能力,保障工业园区内焦化厂熄焦用水稳定达标。工程调试运行表明,两级生物处理模式解决了焦化废水生物系统易冲击问题,最终出水COD、NH_4~+-N、TN分别降至20～30、<2、<10 mg/L,去除率分别高达99%、98%、95%。同时,出水COD、NH_4~+-N、TN、TP、氰化物、硫化物、挥发酚、油类均优于《炼焦化学工业污染物排放标准》(GB 16171—2012)直排标准,并达到膜前标准,为焦化废水零排放奠定了基础。
        According to the problem that effluent of 5 000 m~3/d coking wastewater treatment process could hardly reach the standard in industrial park,the process mode of "front-end plant pretreatment with AO-back-end park treatment with OAO + Fenton advanced treatment"was adopted for the first time. As a result,the impacting resistance of the process was enhanced greatly,and the quality standard of water for coke quenching was reached steadily. The operation of project showed that the twostage biological treatment mode had solved the problem that traditional coking wastewater biological treatment technology was impacted easily. The final effluent indexes such as COD,NH_4~+ -N and TN were reduced to 20-30 mg/L, < 2 mg/L and < 10 mg/L,respectively. The removal rates were up to 99%,98% and 95% respectively. Meanwhile,effluent COD,NH_4~+ -N,TN,TP,cyanides,sulfides,phenols and oils were considerably lower than the direct discharge criteria specified in the Emission Standard of Pollutants for Coking Chemical Industry (GB 16171-2012),and also reached the standard of membrane entry requirement,which laid a foundation for zero discharge of coking wastewater treatment process.

引文

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