摘要
以城市污水回用为目的,对常规混凝-沉淀-过滤工艺、臭氧生物活性炭和直接超滤等深度处理技术处理城市污水处理厂二级出水的效果进行了试验研究,对各种工艺的去除效果进行了评价。
In this work, the conventional treatment technologies for wastewater were compared to optimized the integrated technology aiming to reuse the effluents. It is found that 95% turbidity can be removed by uhrafihration, but little function for organic pollution and heavy metals. Coagulation-sedimentation-filtration is a conventional process, but quite effective in removing turbidity, heavy metals, organic pollutants and 50% -80% of total P. For ozonation-biological activated carbon treatment process, the turbidity and organic pollutants can be removed effectively, with a CODe, removal of 60%-70% and NH3-N removal of 70% -90%, but little effect for heavy metals and bacteria removals. It is justified that only the integrated technologies can effectively remove the wastes from wastewater to reach the standard of reuse water.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2005年第9期670-673,共4页
Environmental Pollution & Control
基金
国家自然科学基金重点资助项目(No.50138020)
北京建筑工程学院博士科研启动基金资助项目(No.1005005)。
关键词
污水回用
超滤
臭氧生物活性炭
混凝-沉淀-过滤
Wastewater reuse Uhrafiltration Ozonation and BAC Coagulation-sedimentation-filtration
