ZHANG Lei,LI Xin-tian,YU Ji-hong,et al.Design of Wastewater Treatment Project in Remediation Process of Pesticide Contaminated Site[J].China Water & Wastewater,2021,37(10 10):95-98.
Design of Wastewater Treatment Project in Remediation Process of Pesticide Contaminated Site
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
10 10
Page:
95-98
Column:
Date of publication:
2021-05-17
- Abstract:
- Remediation of contaminated site is in rapidly developing stage in China. However, available wastewater treatment technology in the remediation process was rarely reported. Ex-site remediation technologies were applied in the remediation of a pesticide contaminated site, and the wastewater produced during the construction process was complicated and the water quality varied greatly. According to the characteristics of wastewater from different polluted sites, the wastewater was collected and treated separately. The high-concentration wastewater was pretreated by a combined process of coagulation precipitation and Fenton oxidation, and then mixed with low-concentration wastewater. The mixed wastewater was eventually treated by hydrolytic acidification and contact oxidation. The designed treatment capacity of the project was 600 m3/d. The operational results showed that the combined process could effectively remove pollutants such as organic pollutants, ammonia nitrogen, total phosphorus and benzene series in the wastewater. The effluent water quality could always meet the requirements for wastewater discharge into sewers, and the direct cost was 8.52 yuan/m3.
Last Update:
2021-05-17