5000td印染废水处理厂设计

论文总字数：35046字

摘 要

随着国内印染行业的迅速发展，其带来的污废水量也在逐年攀升，解决印染废水处理问题首要从工厂印染流程出发，研究每一步骤是否会产生废水，产生何种类型的废水。根据印染废水的特征，了解了污水处理的基本工艺，并着重分析了深度处理的几种方法，由此寻找一条工艺路线可以使印染废水最终达到排放标准。

根据水质特征确定了一套以生物接触氧化法为主体的工艺，本工艺有如下特点：首先利用水解酸化预处理提高废水的B/C值，再用BOD负荷较高的生物接触氧化法作为主要处理手段，最后针对主体工艺较难去除的SS设立一个高密度沉淀池，最终出水水质中COD_Cr达到了200mg/L，BOD₅达到了50mg/L，SS也达到了100mg/L，符合接管标准。估算工程投资为622.76万元，预计每m³处理成本约为0.73元。

最终，根据计算结果绘制了8张平面图，高程图，大样图等A1图纸，对构筑物剖面图不同的面分别展示，各个部位尺寸进行了标注，使整个设计更直观地展现了出来。

关键词：印染废水工艺；深度处理；吸附处理；印染废水特征

Abstract

With the rapid development of the domestic printing and dyeing industry, the amount of sewage generated by it has also increased year by year. To solve the problem of printing and dyeing wastewater treatment, we should start from the factory printing and dyeing process to study whether each step will produce wastewater and what kind of wastewater will be produced. According to the characteristics of printing and dyeing wastewater, the basic process of sewage treatment was understood, and several methods of advanced treatment were analyzed. Therefore, finding a process route can finally achieve the discharge standard of printing and dyeing wastewater.

According to the characteristics of water quality, a set of bio-contact oxidation method was established. The process has the following characteristics: firstly, the B/C value of wastewater is improved by hydrolysis acidification pretreatment, and the biological contact oxidation method with higher BOD load is used as the main The treatment method finally sets up a high-density sedimentation tank for the SS which is difficult to remove by the main process. The COD_Cr reaches 200mg/L, the BOD₅ reaches 50mg/L, and the SS also reaches 100mg/L, which meets the take-over standard. The estimated project investment is 6.237 million yuan, and the estimated processing cost per m3 is about 0.73 yuan.

Finally, according to the calculation results, 8 plans, elevation maps, large sample drawings and other A1 drawings were drawn, and the different faces of the structure are shown separately, and the dimensions of each part are marked to make the whole design more intuitive.

KEY WORDS：dye wastewater process; advanced treatment; adsorption treatment; characteristics of dye wastewater

目 录

摘要 …………………………………………………………………………………………………..……….Ⅰ

Abstract ……………………………………………………………………………………….……...……….Ⅰ

第一章 概述 …………………………………………………………………………………...………...….1

1.1 编制依据及原则 ……………………..………………………………………………1

1.1.1 法律法规标准 ……………….………………………………………………1

1.1.2 编制原则 ……………………………………….……………………………1

1.2 印染废水的特征 ……………………………………………………………..………1

1.2.1 印染工艺流程 ……………………………………………………….………1

1.2.2 印染流程产生的废水 ……………………………………………….………3

1.3 污水处理工艺 …………………………………………….…………………….……4

1.3.1 印染废水处理需要特色 ………………..……………………………...……4

1.3.2 预处理阶段 …………………………………………………….......…..……4

1.3.3 生化处理阶段 ……………………………………..…………………...……4

1.3.3.1 生物法 …………………………………...….………………………5

1.3.3.2 深度处理法 …………………………………………………………5

1.3.3.3 吸附法 ………………………………………….……...……………5

1.3.3.4 高级氧化法 …………………………………………………………6

第二章 设计条件 ………………………………………………………………….……………6

2.1 工程名称 ………………………………………………………………………..……6

2.2 工程资料 …………………………………………………………….……………….…………6

2.2.1 基本资料 ……………………………………………………..………...……6

2.2.2 原始条件及数据 ………………………………….…………………………7

2.2.3 技术要求 ………………………………………………………………….…7

第三章 方案选择 …………………………………………………………………...………..…7

3.1 两套方案 ……………………..…………………………………………..…..………7

3.2 对比选择 …………………………………………………………..…………………9

第四章 设计计算 ………………………………………………………………………...…………………9

4.1 格栅 ……………………..……………………………………………………………9

4.1.1 设计参数 ……………….……………………………………...…………….9

4.1.2 格栅计算 …………………………………………………………….………9

4.2 调节池 ………………………………………………………………………………10

4.2.1 调节池计算 ……………… ……………………………………………..…11

4.3 污水提升泵 …………………………………………………………………………11

4.4 初沉池 ……………………..………………………….………………….…………11

4.5 水解酸化池 ………………………………………………………….………...……13

4.6 生物接触氧化池 …………………………………….………………………...……14

4.7 高密度沉淀池 …………………………………………….……………………...…16

4.8 污泥浓缩池 ……………………..…………………………………………………..20

4.9 加药间 ………………………………………………………………………………21

4.9.1 pH ……………….……………………………………………………..…….21

4.9.2 PAC与PAM …………………………………………………………………21

4.10 污泥脱水 ……………………………………………….………………………….22

4.11 鼓风机房 ……………………..……...................……….…………………………22

4.12 污泥提升泵 ……………………………………………………………....………..22

• 1. 脱水机房 …………………………………………………………………………....23
  2. 综合办公楼 ………………………………………………………….......………...23

第五章 平面布置 ……………………………………………………………………..……….23

5.1 平面布置的一般原则 ……………………..………………………………………..23

• 1. 布置结果 …………………………………………………………..……………….24

第六章 高程布置 …………………………………………………….………………………..24

6.1 污水处理厂高程布置应考虑事项 ………………………………..………………..24

6.2 污水厂的高程布置 …………………………………………………………………24

6.3 污水处厂高程计算 ……………………..……………………………….………….24

6.3.1 污水的高程计算 ……………….…………………………………………..24

6.3.2 污泥的高程计算 …………………………….……………………………..28

第七章 经济分析 ……………………………………………………………………………...29

7.1 工程造价分析 ……………………..………………………………………………..29

7.1.1 计算依据 ……………….…………………………………………………..29

7.1.2 建设投资 ……………….………………………………………..…………30

7.1.3 运营费用 ……………….…………………………………………………..31

• 1. 处理成本 ……………………………………………………..……………………...32

第八章 致谢 ………………………………………………….………………………………..32

参考文献 ……………………………………………………………………….………………33

第一章 概述

剩余内容已隐藏，请支付后下载全文，论文总字数：35046字