浅析农村污水处理技术

摘要：随着我国农村经济社会的发展和农民生活水平的提高，我国农村生活污水总排放量逐年增加，导致水体环境严重恶化，对我国可持续发展战略的实施带来了负面影响，因此进行农村污水处理刻不容缓。了解村镇基本情况，分析总结村镇污水特点，探讨村镇污水治理的适用工艺技术具有重要的意义。本文结合村镇生活污水水质水量特征分别介绍了CASS工艺，A2O工艺，氧化沟等技术。

关键词：农村生活污水 处理工艺

A brief analysis of rural sewage treatment technology.

Abstract: With the economic development of rural,the pollution caused by rural sewage is more seriously.Because the number of rural is more and dispersed,the sewage affects the surrounding environment more and more.The implementation of the strategy of sustainable development were threatened with rural domestic sewage pollution in our country.In view of characterristics and law of rural domestic sewage,this paper analysed the principle,technological characterristics,application conditions,then point out that take appropriate technology and introduced CASS process, A2O process,oxidation ditch and other technologies.

Keywords: Rural domestic sewage；treatment process

1 农村生活污水的概念

农村生活污水是指农村地区居民在生活过程中厕所排放污水、洗浴、洗衣服和厨房污水等。随着农村居民生活水平的提高,肉、油类食物的食用量增加,生活污水中油类成分增加；由于含磷洗衣粉的使用导致洗涤污水中含有大量磷,流入湖泊引起富营养化污染；冲厕水则含有高浓度的COD、BOD₅和SS。

2 农村生活污水的特点