印染废水深度处理应用研究

发布时间：2017-12-31 15:20

本文关键词：印染废水深度处理应用研究　出处：《齐鲁工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：本文与诸城市某纺织印染有限公司合作,该公司主要以生产出口服装面料为主,包括各种弹力布、竹节布、提花布、高支高密面料及其他普通品种的染色、印花等,工艺废水水质复杂、组成不稳定,根据该公司水质来分析,采用单纯的物理方法显然是不能满足企业可持续发展的要求的,必须采用物化(预处理)、生化、臭氧氧化相结合的工艺。新应用于工艺中的臭氧是一种氧化性非常强的化合物,不仅仅对反应条件要求很低,并且还能有效破坏微生物的细胞结构和各种生理组织,因此,其对于污水中的微生物的杀灭效果明显。臭氧经过氧化还原反应后,其被还原O2,,也因此,它也不会对水体造成二次污染。本工艺中使用的O3来源于空气中的O2,应用起来就地取材,比较方便。此工艺系统具有多重作用:第一重作用是对公司排放出的印染废水作简单的预处理,从而为后面的生化处理工艺做铺垫,同时,这一部分处理工序还能除去一些分子量较大的有机物质,对解染料中的发色基团作初步的分解去除;第二重作用是可以对污水中的一部分污泥作初步处理,以便后续工序对废水做进一步的净化;第三重作用是创造性的采用多段脱色工艺,对废水的脱色处理的效果更加显著,同时也是污水处理工艺的出水水质更加的稳定。(1)消耗能源相对较少,资源利用率有很大提升;(2)在处理工艺流程中,废水中的BOD/COD的比值得到了提高,废水可生化性得到了一定程度的改良,结果显示,水体中COD的去除率提高到了80%以上,色度的去除更是达到了98%。(3)废水中氨氮的去除效果得到了强化,剩余污泥量小,出水水质稳定达标。(4)投资节省、工艺各流程运行相对稳定、管理简单、各种费用也较低。因此,根据企业现有状况,采用此工艺对生产废水进行深度处理并部分回用于生产,使企业所有外排废水得到科学有效的处理并尽最大程度的回用,从而实现能耗少、污染少的生产理念,满足企业进一步发展的要求。
[Abstract]:This article cooperates with a textile printing and dyeing co., Ltd in Zhucheng, which mainly produces export garment fabrics, including various elastic cloth, bamboo section cloth, pick-up cloth, high count and high density fabric and other common kinds of dyeing. Printing, process wastewater water quality complex, composition instability, according to the water quality of the company to analyze, the use of simple physical method is obviously not able to meet the requirements of sustainable development of enterprises, we must use physical (pretreatment). The new application of ozone in the process is a very strong oxidizing compound, not only for the reaction conditions are very low. And can also effectively destroy the microbial cell structure and various physiological tissues, therefore, its killing effect on microorganisms in sewage is obvious. Ozone after redox reaction, it was reduced by O _ 2O _ 2, therefore. It will not cause secondary pollution to the water body. The O3 used in this process comes from O _ 2 in the air and is used locally. This process system has many functions: the first function is to pretreat the printing and dyeing wastewater discharged by the company so as to pave the way for the later biochemical treatment process. In this part of the treatment process, some organic substances with high molecular weight can be removed, and the chromophore in the hydrolyzed dyes can be preliminarily decomposed and removed. The second effect is that some of the sludge in the sewage can be treated preliminarily so as to further purify the wastewater in the subsequent process. The third is the creative use of multi-stage decolorization process, the effect of wastewater decolorization treatment is more significant, but also the effluent quality of wastewater treatment process is more stable. The utilization rate of resources has been greatly improved; 2) in the treatment process, the ratio of BOD/COD in wastewater has been increased, and the biodegradability of wastewater has been improved to some extent, the results show that. The removal rate of COD in water was increased to more than 80%, and the removal rate of chroma reached 98. 3) the removal effect of ammonia nitrogen in wastewater was enhanced, and the amount of excess sludge was small. The effluent water quality is stable up to standard. 4) the investment is saved, the operation of each process is relatively stable, the management is simple, and the cost is low. Therefore, according to the existing situation of the enterprise. This process is used for advanced treatment of production wastewater and partial reuse in production, so that all effluents of enterprises can be treated scientifically and effectively and reused to the greatest extent, so as to realize the production concept of less energy consumption and less pollution. To meet the needs of further development of the enterprise.
【学位授予单位】：齐鲁工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X791

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