年产2.5万吨糖蜜味精厂废水治理和综合利用工艺设计
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摘要
我国土地资源紧缺,粮食消费增长过快,国内每年都要进口一千万吨粮食进行市场调剂。在这种状况下,利用资源发展糖蜜原料生产味精,可提高糖蜜利得价值和节约大量粮食,促进我国可持续发展战略的实施,具有着重大的意义。但在糖蜜味精生产过程中产生大量的高浓度有机废水,给治理工作带来较大的困难,对生态环境造成巨大影响。由于污染治理等环保问题未能完善解决,使糖蜜原料发酵生产谷氨酸的工艺未能加以推广和达到普遍工业化。
     1、本文利用废弃物综合利用新技术,解决糖蜜味精生产中的环境保护问题。本文设计以节能、降耗、减污为目标,以技术管理为手段,引入清洁生产,消除糖蜜味精生产对人类和生态环境的影响。从而达到防治污染、提高经济效益双重目标。使糖蜜原料发酵生产谷氨酸的工艺得以推广应用,推动我国味精工业走向新的台阶。
     2、本文从技术可行、投资合理、运行费用较低、管理简便等因素考虑,比较国内外高浓度有机废水的污染防治经验和实例,提出自己的见解。
     3、味精生产主要的工业污染是高浓度有机废水,在治理工作中有较大的困难。我国现有的污染治理工艺主要采用生物方法和物理化学方法,但因投入大、运行费用高、较难彻底治理达标以及会产生二次污染等,技术推广应用受到限制。对此,本文利用废弃物综合利用技术,对多个方案进行优化,提出废液-喷浆造粒生产复合肥的技术方案。
     4、本设计工艺具有产量高、效率高、能耗低、操作弹性强、占地面积少,简化工艺流程等优良特点,使污染物零排放和资源的回收,实现良好环境效益、经济效益、社会效益。
     5、本文对优选的方案进行工艺设计,包括:工艺流程设计、物料衡算、工艺设备的计算和选型、能量计算等。
The land resource of our country is in short supply, the grain is consumed and increases too fast. Domestic import 10 million tons of grain adjust the market every year. Under this kind of state, utilize resources to develop the monosodium glutamate of production of material of molasses. Can improve the molasses profit and value, with economizing a large amount of grain, promote the implementation of the sustainable development strategy of our country, have great meanings. But produce a large amount of high density organic waste water while the molasses monosodium glutamate produces, bring greater difficulty to work of treatment of the waste water, cause the tremendous influence to the ecological environment. Because environmental protection problems, such as pollution control,etc. fail to be perfected and solved. Make molasses raw materials ferment and produce craft of glutaminic acid fail to be popularized and reach general industrialization.
    1.This theses utilizes the new technology to solve the environmental protection problem in the monosodium glutamate production of molasses. This design with economizing the energy, reduces the consumption of raw materials, reduces pollution as the goal, regard technical management as the means. Introduce cleaner production, dispel and reduce the impact on human health and ecological environment of the monosodium glutamate production. Thus reach the double goal of controlling industrial pollution, increasing economic efficiency. Make molasses raw materials ferment and produce craft of glutaminic acid can be popularize and apply. Promote the monosodium glutamate industry of our country to go on new progress.
    2. This theses from technical feasibility, investment rationality, operate and low expenses have, manage getting simple and convenient factor consider. Pollution control experience and instance of the relatively domestic and international high density organic waste water, Put forward the individual opinion.
    3. It is the high density organic waste water that the monosodium glutamate produces main industrial pollution, bring greater difficulty to the pollution control work. Our country existing pollution control adopt biological method and physical chemistry method mainly, because the existing pollution control technological fund has high input, the equipment runs costly, difficult to be up to standard and produce secondary pollution, etc. The popularization and application of this pollution control technology are limited. As to this, this theses utilizes the new technology, through
    
    
    
    optimizing and compare a lot of schemes. Put forward concentrate-spray plasm and making particles to produce the fertilizer technological scheme.
    4. This craft have output to be high, high efficiency, energy consumption low, operate elasticity fine, little floor space have, simplify the technological process characteristic. Make pollutant no emission and resource recovery, realize good environmental benefit, economic benefits, social benefit.
    5. Scheme to optimum seeking of this theses go on technological design, including: technological process design, the balance of the supplies is calculated, technics calculation and person who select of equipment, energy calculated etc.
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