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农村生活污水处理技术
添加时间：2017/5/24 14:34:59     浏览次数：
农村生活污水处理技术 Rural sewage treatment technology 认真分析农村生活污水的特点，结合农村特殊的地理环境，污水处理工艺的选择应与污水的利用相结合，提升当地的水体质量和生态环境，使农村的生态环境显著的改善，水资源的合理利用。如果农村有天然的废塘时，应因地制宜的选择利用当地条件，选择生态塘或者人工湿地等污水处理工艺。如没有先天有利条件利用，则可以选择好氧生化处理工艺对污水进行处理。（1）人工湿地。人工湿地是人工建造的类似沼泽的生态系统。它是通过过滤、吸附、微生物分解等作用来实现对污水的净化。人工湿地处理污水是充分利用了“土壤—植物—微生物”系统的净化能力，既可去除有机污染物，又可去除造成水体富营养化的氮、磷等污染物。人工湿地处理技术的应用较多，出水效果较好。人工湿地由于其特点，适合缺乏污水管网的地区。但人工湿地技术受气候影响较大，北方的冬季气温较低，会影响人工湿地系统的正常运行，降低处理效果。因此此工艺的选择需充分考虑当地气候和选择的植物。（2）生物滤池。生物滤池处理工艺是以土壤自净原理为依据发展而来的人工生物处理技术。 To analyze the characteristics of rural domestic sewage, combined with rural special geographical environment, the choice of wastewater treatment process should be combined with the use of sewage, improve local water quality and ecological environment, significantly improve the rural ecological environment, the rational use of water resources. If there is a natural waste pond in the countryside, the local conditions should be used to make the choice of ecological ponds or artificial wetlands. If there is no inherent favorable condition, the treatment of wastewater can be processed by the process of aerobic biochemical treatment. (1) artificial wetlands. Artificial wetlands are artificial marshy ecosystems. It is purified by filtration, adsorption and microbiological decomposition. Artificial wetland wastewater treatment is made full use of "soil, plants, and microorganisms purification ability of the system, can remove organic pollutants, and can remove pollutants such as nitrogen and phosphorus of the eutrophication in water body. The application of artificial wetland treatment technology is more, the water effect is better. The artificial wetland is suitable for the lack of sewage network because of its characteristic. But the artificial wetland technology is affected by the climate, the winter temperature in the north is lower, it will affect the normal operation of the artificial wetland system and reduce the processing effect. Therefore, the choice of this process should be fully taken into consideration of the local climate and selected plants. (2) biological filter. Biofilter processing technology is based on the principle of soil self-purification based on the development of artificial biological treatment.
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