ZHOUGang,JIAZhong-yuan,TAOBing-chi,et al.Pilot Study on Heterogeneous Fenton Process for Treating Industrial Wastewater from Pharmaceutical and Chemical Industrial Park[J].China Water & Wastewater,2024,40(21):21-26.
Pilot Study on Heterogeneous Fenton Process for Treating Industrial Wastewater from Pharmaceutical and Chemical Industrial Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第21期
Page:
21-26
Column:
Date of publication:
2024-11-01
- Keywords:
- industrial wastewater from pharmaceutical and chemical industry park; heterogeneous Fenton process; hydrolysis acidification; Bardenpho process
- Abstract:
- A pilot test was conducted on industrial wastewater treatment in the pharmaceutical and chemical industry park using the “collection tank + coagulation sedimentation + hydrolysis acidification + Bardenpho + secondary sedimentation tank + heterogeneous Fenton oxidation + stabilization tank + sedimentation tank + aerated activated carbon biofilter” (process 1) and “collection tank + heterogeneous Fenton oxidation + stabilization tank + sedimentation tank”(process 2). The removal efficiency of COD by heterogeneous Fenton oxidation as advanced and pretreatment process respectively was investigated. When the heterogeneous Fenton oxidation was used for advanced treatment unit, effluent COD was (57.50 ± 5.72) mg/L with a removal rate of (56.69 ± 3.11)%. The effluent COD of the entire process met the limit requirements of class A criteria in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（GB 18918-2002）. When the heterogeneous Fenton oxidation was used for pretreatment unit, the effluent COD was (107±22.1) mg/L, the removal rate was (63.90 ± 4.26)%, and the B/C ratio of the effluent was 0.2, which was slightly higher than that of the raw water. It is recommended that the main process of the centralized treatment facilities in the park adopt heterogeneous Fenton, and set up heterogeneous Fenton emergency treatment unit for accident wastewater.
Last Update:
2024-11-01