浙江某工业区大规模污水处理厂提标扩建设计案例
Design case of large-scale sewage treatment plant upgrading and expansion in an industrial park in Zhejiang province
张继昌 1奚浩 1李猛 1林碧花1
作者信息
- 1. 中国市政工程中南设计研究总院有限公司,武汉 430014
- 折叠
摘要
浙江某工业区污水处理厂提标扩建总规模50万m3/d,其中提标部分规模30万m3/d,扩建部分规模20万m3/d.项目进水以印染和化工废水为主,占总进水量80％左右,进水中含有较多难降解、可溶性有机物,可生化性较差.出水水质需达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准,处理难度极大.项目为保证出水水质稳定达标,在现状运行经验的基础上,通过中试确定了污水主体处理工艺:提标部分采用生化系统改造—芬顿催化氧化—过滤;扩建部分采用进水调节—混凝沉淀—强化生化处理—芬顿催化氧化—过滤.项目投产运行以来,处理效果良好、出水稳定达标.
Abstract
The sewage treatment plant in an industrial park of Zhejiang province expand to a to-tal capacity of 500 000 m3/d,including a 300 000 m3/d upgrade project and a 200 000 m3/d expan-sion project.The project's inlet water is mainly composed of industrial wastewater from printing and dyeing and chemical industries,accounting for about 80％of the total inlet water volume.The inlet water contains many refractory and soluble organic substances with poor biodegradability.The effluent quality needs to meet the Class A standard of the Discharge standard of pollutants for municipal wastewater treatment plant(GB 18918-2002),which is extremely difficult to achieve.To ensure the stability and compliance of the effluent quality,the project has carefully de-termined the main treatment process for the sewage through pilot tests based on current operational experience:The upgrade project adopts biochemical system transformation-Fenton catalytic oxi-dation-Filtration;the expansion project adopts inlet water regulation-Coagulative precipitation-Enhanced biochemical treatment-Fenton catalytic oxidation-Filtration.Since the project was put into operation,the effluent has been stable and up to standard.
关键词
工业废水/高级氧化/芬顿催化氧化/印染/化工Key words
Industrial wastewater/Advanced oxidation processes/Fenton catalytic oxidation/Printing and dyeing industry/Chemical industry引用本文复制引用
出版年
2024
NETL
NSTL
万方数据