毕设基本摘要
摘要
本设计是苏北地区某污水处理厂的初步设计，污水通过格栅、平流沉砂池、辐流初沉池、A2/O、辐流二沉池等构筑物的处理使污水中的污染物质得到有效的去除，而污泥在贮泥池经浓缩，脱水，干化处理后达到稳定化、减量化、无害化、综合利用等目的以达到保护环境的目的。城市污水经处理后，30%作为城市景观环境用水，用于湖泊水源水，且不能影响周边环境，从而达到了污水处理厂的经济、环保的目的。
依据污水的水质、水量以及受纳水体的环境容量等相关资料，必须对其进行二级体会理方可去除水中的有机污染物，达到排放标准进而保护环境，经过方案比较本设计采用A2/O工艺，其工艺在系统中可以称为最简单的同步脱N除P工艺，其总的水力停留时间少于其他同类工艺，在厌氧（缺氧），好氧交替运行备件下，无污泥膨胀现象，污泥有很好的肥效等优点，且污泥较稳定，污泥经浓缩脱水后进行泥饼外运减少了环境污染。
通过此设计，也更加了解污水处理厂处理的污染问题能得到较好的解决而产生良好的环境效益，同时也会收到很好的经济效益和社会效益。
关键词 污水处理厂；A2/O工艺；污泥处理
Abstract
This design is the northern area of the initial design of a sewage treatment plant, sewer through grilles, advection grit, spoke at the beginning of the stream sink pool, A2/O, spoke stream secondary structures such as process wastewater pollutants get effective removal, and the sludge to mud pools through concentrated, dehydration, stem-achieve stabilization, harmless, including aim to achieve the objective of protecting the environment. Municipal sewage treatment, 30% of the urban landscape of water, lake water sources, and cannot affect the surrounding environment, so as to achieve a sewage treatment plant for the purpose of the economic and environmental protection.
According to the sewage water quality, water quantity and water environment capacity and other related materials, you must only be secondary experience regulating removal of organic pollutants, to achieve the emission standards and the protection of the
This design is the northern area of the initial design of a sewage treatment plant, sewer through grilles, advection grit, spoke at the beginning of the stream sink pool, A2/O, spoke stream secondary structures such as process wastewater pollutants get effective removal, and the sludge to mud pools through concentrated, dehydration, stem-achieve stabilization, harmless, including aim to achieve the objective of protecting the environment. Municipal sewage treatment, 30% of the urban landscape of water, lake water sources, and cannot affect the surrounding environment, and make the most of the water and resolve the problem of the shortage of water resources, so as to achieve a sewage treatment plant for the purpose of the economic and environmental protection.
According to the sewage water quality, water quantity and water environment capacity and other related materials, you must only be secondary experience regulating removal of organic pollutants, to achieve the emission standards and the protection of the environment, through plan comparison this design incorporates A2/O technology, their processes in the system can be referred to as the simplest synchronization of N addition P process, its total hydraulic retention time of less than other similar technology, anaerobic (hypoxia), aerobic alternating run under spare parts, no bulking phenomenon, sludge has very good efficiency, etc., and the sludge, sludge through more stable sludge cake after transportation reduces the environmental pollution.
With this design, you know more about the sewage treatment plant pollution problems can get a better fix and produce good environmental benefits, but also receive good economic and social benefits.
Keywords A2/O process; sewage treatment plant; sludge treat
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