ZENGMing,GUOQing-he,XUGui?da,et al.Reconstruction and Operation Analysis of WWTP in a Chemical Industry Park[J].China Water & Wastewater,2022,38(18):101-106.
化工園區(qū)綜合污水廠的工程改造及運(yùn)行分析
- Title:
- Reconstruction and Operation Analysis of WWTP in a Chemical Industry Park
- Keywords:
- chemical industry park; micro-electrolysis; Fenton; ozone catalytic oxidation; upgrading and reconstruction
摘要:- 某以醫(yī)藥中間體、農(nóng)藥中間體、石化產(chǎn)業(yè)為主的化工園區(qū)綜合污水處理廠原采用Biodopp生化/高效沉淀池/纖維轉(zhuǎn)盤濾池工藝，設(shè)計(jì)處理規(guī)模為5 000 m3/d，出水指標(biāo)僅BOD5、SS和TP能達(dá)到《城鎮(zhèn)污水處理廠污染物排放標(biāo)準(zhǔn)》（GB 18918—2002）的一級(jí)A標(biāo)準(zhǔn)。針對(duì)此問(wèn)題，采用微電解+芬頓+A2/O+MBBR+臭氧催化氧化+BAF工藝進(jìn)行了工程改造，在保持處理規(guī)模不變的情況下，當(dāng)進(jìn)水COD、BOD5、SS、NH3-N、TN、TP、Cl-平均濃度分別為263.8、16.7、107.2、12.22、42.36、4.8、3 998.16 mg/L時(shí)，處理出水COD、氨氮、總氮的平均濃度分別為29.17、0.16、7.86 mg/L，去除率分別達(dá)到89.11%、98.63%、81.44%，實(shí)際出水水質(zhì)優(yōu)于一級(jí)A排放標(biāo)準(zhǔn)，滿足污水處理廠的廢水排放標(biāo)準(zhǔn)，總處理費(fèi)用為4.77元/m3。
Abstract:- 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 5 000 m3/d. Only BOD5, 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, A2/O, MBBR, ozone catalytic oxidation, and BAF was used for reconstruction. With the original treatment capability unchanged, when the average concentrations of influent COD, BOD5, SS, NH3-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, 3 998.16 mg/L, respectively, the average concentrations of effluent COD, ammonia nitrogen and total nitrogen are 29.17 mg/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/m3.
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