(论文)摘 要随着经济、科技和社会的发展,农村生活污水的收集与处理也越加受到人们重视。人们渐渐意识到,农村里边还是缺乏完善的排水渠道和污水处理系统,而且生态环境受到极其严重的影响,河湖流域富营养化、藻类大爆发,地下水水质越加恶化等现象都是因为自己随意排放未加处理的污水引起的。因为农村人员居住分布不太集中,所以导致农村排放污水含有与城镇污水相异的特征:水量巨大而且时刻增长,COD、TN、TP 等指标较高,污水排放随意且水量与水质变化较大。A/O 工艺法也叫做厌氧好氧法。厌氧好氧法在好氧工艺段前增设水解酸化部分,污水可生化性能得到较大增强,不仅能够降低污水中的有机污染物,还能够同时降低 TN、TP 浓度指标,对难降解污水废水以及有机高浓度污水也有着不错的处理效果。A2O 工艺法也叫作生物脱氮除磷工艺法 A2O 污水处理工艺在现阶段无论是农村还是城镇污水处理厂都得到了广泛使用,这种工艺将传统的活性污泥法连同脱氮除磷工艺有机组合起来,在降低有机物浓度的同时实现脱氮除磷的结果,工艺流程不复杂,容易操作,处理污水效果绝佳。为了达到较好的脱氮除磷效果并且本着尽可能选择最简便高效的污水处理工艺原则,在投资以及运营费用充足的情况下,优先推荐使用 A2O 工艺作为本 s 污水处理工艺的主要工艺。- I -关键词: 农村污水处理,工艺设计,A2O 工艺,AO 工艺,投资概算(论文)Process design of 200m ³ / D domestic sewage treatment in a rural areaAbstractWith the development of economy, science and technology, and society, the collection and treatment of rural domestic sewage is getting more and more attention. People gradually realize that there is still a lack of perfect drainage channels and sewage treatment systems in rural areas, and the ecological environment is extremely seriously affected. Eutrophication in rivers and lakes, large-scale outbreaks of algae, and the worsening of groundwater quality are all due to their own randomness. Caused by the discharge of untreated sewage. Because the distribution of rural people is not concentrated, the sewage discharged from rural areas has characteristics dif...