摘要
某以医药中间体、农药中间体、石化产业为主的化工园区综合污水处理厂原采用Biodopp生化/高效沉淀池/纤维转盘滤池工艺,设计处理规模为5000 m^(3)/d,出水指标仅BOD_(5)、SS和TP能达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。针对此问题,采用微电解+芬顿+A^(2)/O+MBBR+臭氧催化氧化+BAF工艺进行了工程改造,在保持处理规模不变的情况下,当进水COD、BOD_(5)、SS、NH_(3)-N、TN、TP、Cl^(-)平均浓度分别为263.8、16.7、107.2、12.22、42.36、4.8、3998.16 mg/L时,处理出水COD、氨氮、总氮的平均浓度分别为29.17、0.16、7.86 mg/L,去除率分别达到89.11%、98.63%、81.44%,实际出水水质优于一级A排放标准,满足污水处理厂的废水排放标准,总处理费用为4.77元/m^(3)。
The original process of the comprehensive wastewater treatment plant(WWTP)of a chemical industrial park focusing on pharmaceutical intermediates,pesticide intermediates and petrochemical industry,is Biodopp biochemical,high efficiency sedimentation tank,and fiber rotary table filter,with a design capability of 5000 m^(3)/d.Only BOD_(5),SS and TP indexes can meet the requirements of the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).In order to solve this problem,the process of micro-electrolysis,Fenton,A^(2)/O,MBBR,ozone catalytic oxidation,and BAF was used for reconstruction.With the original treatment capability unchanged,when the average concentrations of influent COD,BOD_(5),SS,NH_(3)-N,TN,TP and Cl^(-)are 263.8 mg/L,16.7 mg/L,107.2 mg/L,12.22 mg/L,42.36 mg/L,4.8 mg/L,3998.16 mg/L,respectively,the average concentrations of effluent COD,ammonia nitrogen and total nitrogen are 29.17mg/L,0.16 mg/L and 7.86 mg/L,and their removal rates can reach 89.11%,98.63% and 81.44%,respectively.The effluent water quality is superior to the requirements of the first level A discharge standard,and the total cost of wastewater treatment is 4.77 yuan/m^(3).
作者
曾明
郭庆贺
徐贵达
安永
ZENG Ming;GUO Qing-he;XU Gui-da;AN Yong(Beijing Crystec High Tech Co.Ltd.,Beijing 102403,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2022年第18期101-106,共6页
China Water & Wastewater
关键词
化工园区
微电解
芬顿
臭氧催化氧化
升级改造
chemical industry park
micro-electrolysis
Fenton
ozone catalytic oxidation
upgrading and reconstruction
