环境工程中的城市污水处理研究

Research on urban sewage treatment in environmental engineering

工业用水与生活用水量持续增长造成城市污水量加剧,污水问题逐渐受到社会各界的广泛重视。从可持续发展角度分析,污水具有较强的污染性,含有大量植物营养物、病原体污染物等成分,直接排入湖泊、土壤会对环境造成严重污染。文章论述活性污泥法、AB去污处理法、A2/O法、间接反应器去污处理、生物膜处理技术、声波处理技术等污水处理技术,基于环境工程视域对其处理过程(预处理、初级处理、二级处理、三级处理)进行深度讨论。

The continuous growth of industrial water consumption and domestic water consumption has resulted in the relative aggravation of urban sewage. The pollution problem of sewage has gradually been widely valued by all sectors of society. From the perspective of sustainable development, sewage has strong pollution, which contains a large number of plant nutrients, pathogenic pollutants and other components. If sewage is directly discharged into lakes and soil, it is bound to cause serious pollution to environmental. The paper discussed the sewage treatment technologies such as activated sludge process, AB decontamination process, A2/O process, indirect reactor decontamination process, biofilm treatment technology, acoustic treatment technology, and discussed the treatment process(pretreatment, primary treatment,secondary treatment, tertiary treatment) from the perspective of environmental engineering.