关于养猪场废水处理设计

昆明理工大学毕业设计（论文）

题目养猪场废水处理的设计

专业环境工程

班号2班

学号1012580236

学生姓名范龙江

指导教师周云涛

2013年 5 月 23 日

摘要

猪场废水中含有大量的有机污染物、氨氮、磷及病虫卵等疾病，不处理就直接排入河流、湖泊，高浓度有机物会分解消耗大量在水中的氧气，所以水中鱼和其他水生物大死亡。同时，猪废水随意排放容易造成浅层地下水污染，严重影响了使用地下水作为生活用水群众该地区的健康。对水体造成严重的污染。对于工艺和设计的改良是人们关心的内容，另外，由于养猪是微利行业，所以污水的处理的费用不能过高，最好处理后能够产生一些效益。

本设计采用厌氧-好氧-氧化塘组合工艺处理高浓度的养猪废水。该工艺具有高效、运行稳定、占地面积小等优点。工艺各个构筑物和设备费用计算合理，处理后的水质能达到设计要求。

关键词：养猪废水；厌氧；好氧；工艺；计算

Abstract

Swine wastewater contains large amounts of organic pollutants, ammonia nitrogen, phosphorus and eggs disease and other diseases, does not deal directly into rivers, lakes. High concentrations of organic matter will decompose consume large amounts of oxygen in the water, so the water big fish and other aquatic organisms died.Meanwhile, the pig is likely to cause indiscriminate discharge of waste water

of shallow groundwater pollution, seriously affecting the use of groundwater as a domestic water masses in the area of health. For process and design improvements that people care about, in addition, because the pig is a low-profit industry, so the cost of sewage treatment is not too high, the best treatment can produce some benefits.

This design uses anaerobic - aerobic - oxidation pond combined process of high concentrations of pig waste. The process is highly efficient, stable, small footprint and so on. Process to calculate the various structures and equipment costs reasonable, the treated water can meet the design requirements.

Key words: Swine wastewater; anaerobic; aerobic; process; computing

目录

1 绪论....................................................................................................................... - 6 -

1.1废水的特点................................................................................................. - 6 -

1.2水质概况（水质及水量的概况）............................................................. - 6 -

1.3设计任务及目标......................................................................................... - 7 -

2 工艺路线的确定................................................................................................... - 8 -

2.1养猪废水处理技术现状综述..................................................................... - 8 -

2.1.1固液分离工艺现状.......................................................................... - 8 -

2.1.2废水厌氧生物工艺现状.................................................................. - 8 -

2.2本工程工艺选择及依据............................................................................. - 9 -

2.2.1水质、水量与排放标准.................................................................. - 9 -

2.2.2工艺选型与依据.............................................................................. - 9 -

2.3工艺流程图................................................................................................. - 9 -

3 构筑物设计计算................................................................................................. - 11 -

3.1设计水质水量的确定............................................................................... - 11 -

3.2各单体构筑物的选型及尺寸................................................................... - 11 -

4 厂区平面布置..................................................................................................... - 13 -

4.1 厂区平面布置一般原则.......................................................................... - 13 -

4.1.1 设计依据........................................................................................ - 13 -

4.2平面布置的确定....................................................................................... - 13 -

5 管渠的水力计算及高程的确定......................................................................... - 15 -

5.1 灌渠的水力计算...................................................................................... - 15 -

5.2 高程设计.................................................................................................. - 15 -

5.2.1 高程布置原则............................................................................... - 15 -

5.2.2 设计地面标高............................................................................... - 16 -

6 定员与材料与设备............................................................................................. - 16 -

6.1 污水处理站定员...................................................................................... - 16 -