吴江盛泽镇《纺织涂层工业大气污染物排放标准》的研究

发布时间：2018-01-11 08:01

本文关键词：吴江盛泽镇《纺织涂层工业大气污染物排放标准》的研究　出处：《苏州科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：纺织涂层是在纺织后整理中发展起来的一种加工技术,近年来,盛泽镇涂层企业迅速发展,其产生的废气带来了严重的环境问题。我国及江苏省内目前尚无专门针对纺织涂层行业的废气排放的标准,给行业的废气排放监管带来严重制约,因此,针对盛泽镇纺织涂层行业开展新的行业型大气污染物排放标准研究具有重要意义。通过资料收集、现场调研以及典型企业废气排放监测,对涂层行业的生产工艺、产排污特征及废气治理方法进行了总结。织物涂层生产工艺分为湿法涂层和干法涂层,主要的大气污染物为VOCs、二甲基甲酰胺(DMF)、甲苯、丁酮、乙酸乙酯以及苯系物等有机废气,各项污染物经处理后的排放浓度均较低,应鼓励企业配套安装废气处理设施或进行提标改造。废气主要治理方法有活性炭吸附法、吸收法、催化氧化燃烧法、生物处理法、静电回收法等。在对纺织涂层行业产排污情况及污染控制技术分析的基础上,参考国内外其他相关标准,结合多介质环境目标值(MEG)推算,确定VOCs的排气筒最高允许排放浓度为80mg/m~3(苯系物、DMF、乙酸乙酯、丁酮占溶剂使用总量90%以下涂层企业或生产设施VOCs执行特别排放浓度限值20 mg/m~3),DMF为20mg/m~3、甲苯为20mg/m~3、苯系物为20mg/m~3、丁酮为20mg/m~3、乙酸乙酯为30mg/m~3,排气筒高度不得低于15m。VOCS无组织排放浓度限值为2.0mg/m~3、甲苯为2.0mg/m~3、苯系物为2.0mg/m~3、DMF为0.4mg/m~3。标准实施的技术经济分析表明标准在技术经济上是可行的,可采用DMF甲苯串联回收（水喷淋+活性炭吸附）技术进行废气治理。标准实施具有较好的环境效益。
[Abstract]:Textile coating is a kind of processing technology developed in textile finishing. In recent years, Shengzezhen coating enterprise has developed rapidly. The waste gas has brought serious environmental problems. At present, there is no standard for the textile coating industry in our country and Jiangsu province, which brings serious constraints to the industry emission supervision. It is of great significance to study the new industrial emission standards of atmospheric pollutants in Shengze textile coating industry through data collection, field investigation and emission monitoring of typical enterprises. The production process, characteristics of sewage production and treatment methods of waste gas in the coating industry were summarized. The production process of fabric coating was divided into wet coating and dry coating, the main atmospheric pollutant was VOCs. After treatment, the emission concentrations of various pollutants are lower, such as DMF, toluene, butanone, ethyl acetate and benzene series. Enterprises should be encouraged to install waste gas treatment facilities or upgrade the standard. The main treatment methods of waste gas are activated carbon adsorption, absorption, catalytic oxidation combustion, biological treatment. Based on the analysis of the production and pollution control technology of textile coating industry, and referring to other relevant standards at home and abroad, combined with the multi-medium environmental target value (MEG) calculation. The maximum allowable emission concentration of the exhaust tube of VOCs was determined to be 80 mg / m ~ (3). Butanone accounts for less than 90% of the total solvent used by coating companies or production facilities to implement a special emission concentration limit of 20mg / mm3 and DMF of 20mg / mm3. Toluene is 20 mg / mt3, benzene is 20 mg / mt3, butanone is 20 mg / mt3, ethyl acetate is 30 mg / mt3. The height of the exhaust tube shall not be lower than 15m.VOCS unorganized emission concentration limit of 2.0 mg / mt3, toluene 2.0 mg / mm3, benzene = 2.0 mg / mt3. The technical and economic analysis of the standard implementation shows that the standard is feasible in technology and economy. The waste gas can be treated by DMF toluene series recovery (water sprayed activated carbon adsorption) technology, and the implementation of the standard has better environmental benefit.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X791;X-652

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