我国农村生活污水处理技术评析

Comment on village sewage treatment process in rural area

我国农村居住分散,经济条件差别较大,污水管网和污水处理设施建设滞后;农村生活污水的水质水量也各不相同,污水处理工程的建设需根据当地环境和自然条件现状、经济承受能力等条件因地制宜进行。水解酸化、接触氧化、塘系统、蚯蚓滤池、地埋式一体化曝气设备、土壤渗滤、人工湿地等各具特点,污水处理工艺的选取可根据各自特点和实际情况单独或结合使用,实现农村生物污水的低费运行和污染治理的双重目标。

The scattered rural villages in China differs widely in levels of economial development.The construction of sewer and sewage treatment can not keep up with requertment for the water protection.A series of factors,such as the local environment stituation,the natural conditions and economical affordability and so on,should be taken into accouted.Hydrolytic acidification,contact oxidation,lagoon system,earthfiltration,,underground integrated aeration units,subsurface infiltration,constructed wetland all are appropriate for village sewage treatment.Every of these techniques has its respective advantages and disadvanges.To realise the village sewage treatment at low cost and effectively,one or several conbined techniques can be applied.