摘 要

随着我国国民经济的高速发展和改革开放的不断深入，城市生产力不断增大，与此同时，城市人口数也不断增加。城市速发展每天都会产生的大量污水，若不及时进行收集处理，将严重影响人们的正常的生活。而且我国又是一个严重缺水的国家，水资源分布不平衡，因此大规模建设污水处理厂，将污染物水平降低到符合国家排水的相关规定，有效防止河流被污染，有效的缓解我国水资源紧缺的现状十分重要。

经初沉池沉淀去除粗大颗粒物和纤维,在调节酸化池中鞣纹水汇合,均化水质、水量,并进行预曝气。水解酸化池和接触氧化池是该流程的主体构筑物,废水经水解酸化池初步水解,将难降解的大分子有机物降解为易于生物处理的小分子有机酸、醛类等,以提高可生化性,然后进入接触氧化池好氧分解,并实现氨氮的硝化,从接触氧化池流出的混合液部分回流至水解酸化池进行反硝化脱氮。生化处理出水经二沉池进行泥水分离,污泥回流至调节酸化池进行内源呼吸,出水经加药絮凝沉淀深度处理后达标排放。

关键词：聚胺酯；废水处理；工艺设计

Abstract

With the rapid development of our national economy and the deepening of the reform and opening, the city productivity is increasing, meanwhile, the population of the city is increasing. The rapid development of urban sewage every day, if not timely collection and processing, will seriously affect people's normal life. And China is a serious water shortage in the country, the unbalanced distribution of water resource, so large-scale construction of sewage treatment plant, the pollutants are reduced to a level in line with the relevant provisions of the national drainage, effective to prevent the river from being polluted, effectively alleviate the situation of shortage of water resources in China is important.

After the deposition of the initial sedimentation tank, the coarse particulate matter and fiber are removed, and the water in the regulating acidification tank is dissolved, and the water is dissolved.Quality and quantity of water and pre aeration. Hydrolysis acidification and contact oxidation pool is the main body of the flow structures, wastewater by hydrolysis acidification pool preliminary hydrolysis, it will be difficult to degradation of macromolecular organic matter degradation for easy to biological treatment of small molecular organic acids, aldehydes, etc., to improve the biodegradability, and then enter the contact oxidation pond aerobic decomposition, and ammonia nitrogen nitrification, flowing from the contact oxidation tank mixed liquor part returned to the hydrolysis acidification pool were denitrification. Biochemical treatment effluent from the secondary settling tank for separation of sludge, sludge return to adjust the acidification pool of endogenous respiration, water dosing flocculation precipitation depth treatment discharge standards.

Keywords: melamine; wastewater treatment; process design

目 录

1 概述

1.1设计背景

1.2 水质水量及处理要求

1.3 工程设计依据及规范

1.4 设计范围

1.5 设计原则

2 聚氨酯合成革染废水的来源和特点

2.1 聚氨酯合成革废水的来源

2.2 聚氨酯合成革废水的特点

2.3 聚氨酯合成革废水的危害

3 工艺方案分析

3.1 聚氨酯合成革废水概况

3.2.1 工艺特点

4 主要构筑物和设备计算说明

4.1 格栅

4.4 水解酸化池

4.5 生物接触氧化池

4.6 二沉池

4.7 絮凝反应池

4.8混凝沉淀池

4.9 去除效果分析表

4.10 污水处理构筑物污泥处理构筑物计算结果及说明

4.11 主要土建建筑物和构筑物

5 聚氨酯合成革废水处理工艺总体布置

5.1平面布置及总平面图

5.1.1 污水处理工艺设施组成

5.1.2 平面布置的原则

5.1.3 厂区平面布置形式

5.2 聚氨酯合成革废水处理工艺的高程布置

5.2.1 废水处理工艺系统的高程布置遵循以下原则

5.2.2 聚氨酯合成革废水处理工艺高程布置应考虑事项

结论

致谢

参考文献

附 录

1 概述