啤酒废水毕业论文

Wastewater, mainly from beer malt shop (wheat wastewater Baptist), glycosylated workshop (glycosylated, filter wash water), fermentation plant (fermentation tank washing, washing water filter), filling plant (bottle washing, sterilizing and wastewater outflow broken bottle beer), and the production such as cooling water. Change the water quality and the scope of its general: pH = ~ (micro-acid), water temperature is 20 ~ 25 ℃, CODCr = 1200 ~ 2300mg / L, BOD5 = 700 ~ 1400mg / L, SS = 300 ~ 600mg / L, TN = 30 ~ 70mg / L. 1t of water for every beer production capacity of waste water 10 ~ 20m3, an average of about 15m3, beer nationwide in emissions of waste water at more than 250 million m3. Beer by the organic content of wastewater can be divided into 3 categories: ① freezer such as clean waste water cooling water, cooling water, such as wort. Basically, this kind of non-contaminated wastewater.② clean water rinse yeast such as water, bottle-washing water, production of devices such as clean water, such waste water pollution are subject to varying degrees. ③ slag containing liquid waste such as wheat bad, hot and cold coagulum. The remaining yeast and so on, such a large number of organic wastewater containing suspended solids. The main sugar industrial waste beer category, alcohols and other organic material, the higher the concentration of organic matter, although the drug-free, but easy to corruption, into the water body to consume a large amount of dissolved oxygen, water environment causing serious methods commonly used in activated sludge process has, biofilm, the combination of anaerobic and aerobic method, acid hydrolysis combined with a variety of SBR treatment process. Such treatment methods and technology have their own characteristics and deficiencies, but their success has more experience. At present, there are many new treatment methods and technology optimization portfolio and is being tested, and some have achieved the desired results, will soon be applied in practice. At present, the main brewery wastewater treatment process has the following: method brewery wastewater treatment contact oxidation process of brewery wastewater treatment 3. Bio-contact oxidation treatment of brewery wastewater 4. UASB reactor loop + oxidation ditch process brewery wastewater treatment + SBR Act of beer wastewater treatment of brewery wastewater treatment process 7. new contact oxidation treatment of brewery wastewaterBeer, one of the main characteristics of wastewater BOD5/CODCr values are high, generally at 50% and above, there is very conducive to biochemical treatment, while biochemical and general physico-chemical treatment method, chemical method comparison: First, deal with more mature technology; are two efficient treatment, CODCr, BOD5 removal rate high, usually ranging from 80% to 90%; are three low-cost treatment (operation cost the province). Brewery wastewater treatment: China's beer wastewater treatment processes and technologies for a large number of research and exploration, the treatment of brewery wastewater to the various aspects of testing, research and practice, has been proven successful experience, and gradually formed a mainly biochemical, biochemical and physico-chemical treatment process of combining.啤酒废水主要来自麦芽车间（浸麦废水），糖化车间（糖化，过滤洗涤废水），发酵车间（发酵罐洗涤，过滤洗涤废水），灌装车间（洗瓶，灭菌废水及瓶子破碎流出的啤酒）以及生产用冷却废水等。其水质及变幅范围一般为：pH=～(显微酸性)，水温为20～25℃，CODCr=1200～2300mg/L, BOD5=700～1400mg/L, SS=300～600mg/L, TN=30～70mg/L。水量为每生产1t啤酒废水排放量为10～20m3,平均约15m3，目前全国啤酒废水年排放量在亿m3以上。 啤酒废水按有机物含量可分为3类：①清洁废水如冷冻机冷却水，麦汁冷却水等。这类废水基本上未受污染。②清洗废水如漂洗酵母水、洗瓶水、生产装置清洗水等，这类废水受到不同程度污染。③含渣废水如麦糟液、冷热凝固物。剩余酵母等，这类废水含有大量有机悬浮性固体。啤酒工业废水主要含糖类，醇类等有机物，有机物浓度较高，虽然无毒，但易于腐败，排入水体要消耗大量的溶解氧，对水体环境造成严重危害。 啤酒废水的主要特点之一是BOD5/CODCr值高，一般在50%及以上，非常有利于生化处理，同时生化处理与普通物化法、化学法相比较：一是处理工艺比较成熟；二是处理效率高，CODCr、BOD5去除率高，一般可达80%～90%以上；三是处理成本低(运行费用省)。啤酒废水处理: 我国对啤酒废水的处理工艺和技术进行了大量的研究和探索，对啤酒废水的处理进行了各方面的试验、研究和实践，取得了行之有效的成功经验，逐渐形成了以生化为主、生化与物化相结合的处理工艺。生化法中常用的有活性污泥法、生物膜法、厌氧与好氧相结合法、水解酸化与SBR相组合等各种处理工艺。这些处理方法与工艺各有其特点和不足之处，但各自都有较为成功的经验。目前还有不少新的处理方法和工艺优化组合正在试验和研究，有的已取得了理想的成效，不久将应用于实践中。 目前来说，主要的啤酒废水处理有以下几种工艺： 1.酸化—SBR法处理啤酒废水 —好氧接触氧化工艺处理啤酒废水 3.生物接触氧化法处理啤酒废水 4.内循环UASB反应器＋氧化沟工艺处理啤酒废水 法处理啤酒废水 处理工艺处理啤酒废水 7.新型接触氧化法处理啤酒废水 邮件也给你发了。

城市水资源短缺的压力越来越大,追究城市水危机的根本原因,人们越来越认识到,是水的社会循环超出了水的自然循环可承载的范围.因此,只有充分尊重水的自然运动规律,合理地使用水资源,使上游地区的用水循环不影响下游水域的水体功能、社会循环不损害自然循环的客观规律,从而维系或恢复城市乃至流域的良好水环境,才是水资源可持续利用的有效途径.这就要求我们从“取水－输水－用户－排放”的单向开放型的用水模式转变为“节制地取水－输水－用户－再生水”的反馈式循环流程,提高水的利用效率.实现这一重大用水模式的转变,加强污水再生利用是关键.随着科学技术的进步,城市污水已不再是废水,而是一种宝贵的资源.既然是一种资源,就要最大程度的利用.提高城市污水的再生利用率,一是可以减少污染物排放,二是节约了有限的水资源.水利部水资源司副司长程晓冰在由清华大学和中国水网主办的“2010城市水业战略论坛”上发表讲话,他指出,我国水资源短缺,城市缺水问题突出,污水处理回用是战略选择,意义重大.城市污水处理回用在替代清洁水源的同时减少了污水排放量,降低了城市排污负荷,具有水量稳定、输水距离短、制水成本低等特点,可以提供安全可靠的替代水源,是解决城市缺水问题的战略选择.推进污水处理回用工作充分体现了科学发展观以人为本的要求,反映了广大人民群众的迫切愿望,是推进城市化建设的客观需要,是实现水资源合理配置、科学保护、循环利用的重要手段,对建设资源节约型、环境友好型社会意义重大,对我国经济又好又快发展意义重大.减少对环境的污染，负起企业应付的责任。同时，企业废水的处理，为企业日后的发展解决了环保方面的后顾之忧。企业环保跟银行的信贷也将会是挂钩的。

COD在300mg/L以下算低浓度；工业废水来说，一般指1000mg/L以下是低浓度有机废水。不过没有明确的规定。