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.
Reconstruction and Operation Analysis of WWTP in a Chemical Industry Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第18期
Page:
101-106
Column:
Date of publication:
2022-09-17
- Keywords:
- chemical industry park; micro-electrolysis; Fenton; ozone catalytic oxidation; upgrading and reconstruction
- 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.
Last Update:
2022-09-17