关于印染废水处理设计毕业论文.docVIP

摘 要 本设计为2000m3/d的印染废水的处理工艺。进水水质：CODCr 800mg/L BOD5 250 mg/L SS 450mg/L pH﹥13 色度 500倍 出水水质CODCr (100mg/L BOD5 (25mg/L SS (70mg/L pH＝6～9 色度 (40倍。经过各种工艺的综合比较，对于本设计适合采用：投加硫酸+水解酸化+生物接触氧化法。因为它处理价格低，除去率高，出水水质好，微生物浓度高，污泥产量少。本设计由5个部分组成：绪论（介绍印染废水的处理现状），工艺流程的确定（经过比较确定投加亚铁盐+水解酸化+生物接触氧化法为处理该印染废水的最佳方案并加以说明），构筑物设计和计算（工艺流程中主要和辅助构筑物的设计计算），平面布置和高程设计（设计的平面布置和高程的设计计算），费用估算（工艺的费用的估算）。经处理后，各种指标均能满足要求。 关键词 ：印染废水； 处理设计； 生物接触氧化 Abstract The design intends to dispose printing and dyeing sewage production with the normal quantity of water of 20003/d.the quality of the water is : CODCr 800mg/L BOD5 250 mg/L SS 450mg/L pH﹥13 chromaticity 500 times. The quality of the discharge water is: CODCr (100mg/L BOD5 (25mg/L SS (70mg/L pH＝6～9 chromaticity 40 times After all, the comprehensive comparison for these design for using: dosing and hydrolysis acidification physico-chemical process + + biological contact oxidation process. Because of its low prices, remove with high rates of outlet water, microorganism and high concentration, sludge output. The design of five parts: introduction (introduction of printing and dyeing wastewater treatment process, determine the comparison made sure (after the physico-chemical process + hydrolysis acidification-sbr-contact oxidation + biological contact oxidation method for processing the optimal scheme of printing and dyeing wastewater and explained), the design and calculating structures (process of main and auxiliary structures, design and calculation of the layout and elevation) design (design layout and elevation design calculations), cost estimation (process cost estimate). The processed, various indexes can meet the requirements. Keywords: printing and dyeing wastewater； disposal design； Biological contact oxidation 目 录 前 言 8 1. 绪 论 9 1.1 印染废水的产生 9 1.2 印染废水的特点 10 1.3 印染废水的危害 11 1.4 设计任务 11 2. 工艺流程的确定 12 2.1 影响流程选择的因素 12 2.1.1 废水处理程度 12 2.1.2 建设及运行费用 12 2.1.3 工程施工难易程度 12 2.1.4 当地的自然条件和社会条件 12 2.1.5 废水水量 12 2.2常用工艺说明 13 2.2.