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摘要：近几年来随着农村乡镇企业的快速发展，农药与化肥的大量使用，养殖场的建立、农村生活污水的排放等问题严重影响着农村的水环境，这些污水中的有机物含量相对于城市污水较低，包含的污染物为N、P、COD 等。农村水环境污染不仅严重影响环境质量的改善和广大农民的身体健康，也影响社会稳定和民生民计，成为制约国家的可持续发展的重要因素。本课题针对我国农村分散型污水水质的特征，结合收集与处理困难的因素，在多种处理工艺方法比较后，最终选择采用经济实惠，效率高效果好，最针对农村分散污水的处理模式的一种处理方法，即由上海子征环境技术咨询有限公司提供的平板生物过滤膜，并在上海郊区若干农村支流试验，定期取进出水样进行COD,TN,TP,NH3-N,PH实验，结合所得相关数据，验证生物膜除污效率，完成此课题。22049
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毕业论文关键词：农村分散性污水，A/O 生物平板膜，COD、TN、TP、NH3-N指标
The process of sewage in rural areas
Abstract ：In recent years, due to the vigorous development of rural township enterprises, pesticides, heavy use of fertilizers, intensive farms and the establishment of rural sewage discharge and other serious polluting the water environment in rural areas, the content of organic matter in the effluent relative terms compared with urban sewage low contaminant that is contained in N, P, COD and the like. Rural water pollution not only seriously affect the quality of the environment and improve the health of farmers, but also affect social stability and people's livelihood has become an important factor restricting the sustainable development of the country. The topic for the type of sewage water in rural dispersion characteristics, combined with the difficulties of collecting and processing factors, in the method of comparing various treatment processes, and ultimately opted affordable, good efficiency effect, the most decentralized wastewater treatment for rural model of a treatment methods, namely sub levy provided by the Shanghai environmental Technology consulting Co., Ltd. tablet biological filtration membranes, and several rural outskirts of Shanghai tributaries test regularly taken out of the water samples COD, TN, TP, NH3-N, PH experiment, combined the resulting data, verify biofilm decontamination efficiency, to complete this task.
KeyWords：Rural water dispersible，A/O Bio flat membrane，COD、TN、TP、NH3-N Index
目录
一、绪论 1
1.1意义 1
1.2目的 1
1.3城市污水现状对比 1
1.4 国内外现状对比 2
1.5 研究范围与技术要求 3
二、方案技术论证 3
2.1集中式与分散式污水处理的比较 4
2.2 方案列举对比 5
2.2.1稳定塘处理技术 5
2.2.2沼气池处理技术 6
2.2.3人工湿地处理技术 6
2.2.4生活污水地下自动连续处理技术 6
2.2.5蚯蚓生态滤池污水处理技术 7
2.3 方案选择 7
2.3.1 生物膜处理工艺优点 8
2.4 A/O工艺 9
2.4.1 基本原理 9
2.4.2 A/O工艺的影响因素 10
2.5 平板生物膜反应器 11
三、实验研究 12
3.1实验准备 12
3.1.1 采样 12
3.1.2 实验室仪器 13
3.1.3 实验方法 15
3.1.4 药品准备 16
四、实验数据处理分析 17
4.1 数据处理方法 17
4.2 数据分析 19