摘要
江苏某农药生产企业产生大量含氟的高浓度生产废水,废水量为120t/d,进水ρ(CODCr)为10000mg/L,ρ(F-)为500mg/L,采用物化-生化组合工艺进行处理。通过对农药废水处理的关键技术问题进行了讨论,对工程设计参数和污染物去除机理进行了探索,并进行了技术经济分析。实践证明,物化-生化组合工艺可以经济有效地实现农药废水的达标处理,出水ρ(CODCr)<500mg/L,ρ(F-)<10mg/L,可以稳定达到开发区污水厂接管标准。
A large amount of high-fluorine wastewater is generated from production of a pesticide manufacturing enterprise in Jiangsu. The total wastewater is 120 t/d, and the inflow COD and F^- are 10 000 mg/L and 500 mg/L respectively. The combined physicochemical-bioehemical technology is applied in wastewater treatment. In this paper, key technical problems in this wastewater treatment are discussed, parameters in engineering design and removal mechanism of pollutants are explored, and technical and economic analysis is carried out. The practice proves that the combined physicochemicalbiochemical technology is capable of treating pesticide wastewater economically and effectively to meet the standards. The outflow COD and F^- are 500 mg/L and 10 mg/L respectively and the effluent is ensured to reach inflow standard of sewage plant of development zone steadily.
出处
《环境科技》
2008年第6期34-36,共3页
Environmental Science and Technology
关键词
含氟废水
沉淀法
混凝
厌氧
SBR
Fluorine wastewater
Precipitation method
Coagulation
Anaerobic
SBR
