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2017-12-19 09:22:43
Brewery wastewater treatment for wastewater treatment methods used to explain brewery wastewater treatment process used to explain the pollution of the alcohol industry to water pollution is the most important. Wastewater from the production process mainly comes from the alcohol tank drained after the maturation of the fermentation, the washing water of the production equipment, the washing water, and the cooling water lamp of the cooking, saccharification, fermentation and distillation processes. The basic production of alcohol does not discharge process waste and waste water, waste gas and waste gas. Waste mainly from the boiler room. Sources and Emissions of Pollutants Produced in Alcohol Production. Wastewater from alcohol production mainly comes from the distilled products discharged at the bottom of the crude distillation tower during the distillation and fermentation, the alcohol tank, and the washing water and cooling water in the production process. Each process in the beer production process has solid waste and wastewater. The main sources of waste water from brewery are: wheat germ, malted water, germicidal spray water, malt water, washing water and coagulant washing water in the malt production process; saccharification and filtration of washing water in the saccharification process; fermenter in the fermentation process Washing, filtering washing water, canning process bottle washing, sterilization, broken beer and cooling water and finished product workshop washing water. In addition, brewery wastewater also includes domestic wastewater from office buildings, canteens, dormitories and bathrooms. Each 1T finished wine, will produce about 1.7 cubic meters of domestic sewage, containing 0.85kg COD pollutants or BOD pollutants 0.5kg. Wastewater discharged from breweries is mainly COD, BOD and SS. The waste water from beer production mainly comes from two aspects: first, a large amount of cooling water and a large amount of washing water and flushing water. Thus, the characteristics of beer wastewater is large amount of water, non-toxic and harmful, is a high concentration of organic wastewater. Beer brewery beer process uses a lot of water, especially in brewing, canning process using a large number of fresh water, corresponding to a large number of long-term wastewater. Beer production process more, different brewery tons of water consumption and water quality difference between the larger. The brewery with high management and technical level consumes 8-12 cubic meters of water per ton. The consumption of water per ton of Chinese brewery is generally larger than this parameter. According to statistics, the average consumption of domestic beer from saccharification to canned tons of wine is 10-20 cubic meters. Most of the large amount of water consumed by beer brewing is transferred to the product, and most of it is discharged into the environment as industrial waste water. Beer industrial wastewater by organic content can be divided into the following categories. Cooling Water Cooling water includes freezer circulating water, wort, and fermented cooling water lights. This type of wastewater is essentially uncontaminated. Washing waste water such as barley waste water, barley germination cooling spray water, cleaning production plant waste water, rinsing yeast water, washing machine initial washing water, canister disinfection waste liquid, Pasteur sprinkling water and ground flushing water. This type of wastewater is subject to varying degrees of organic pollution. Dregs waste and wheat liquid tank, cooling coagulation, hopper, remaining yeast, such as mud. This type of wastewater contains a large amount of suspended solid organic matter. Section will produce wort cooling water, device wash water, wheat, heat coagulation and hopper. Device washing water is mainly saccharification pot washing water, filter tank and sedimentation tank washing water. In addition, the saccharification process also discharge a large amount of suspended solids such as hopper, thermal coagulation. Filling the waste water in the filling of the wine is, the machine runs leaking hour and hour, but also often appear to drink wine, will be a lot of wine residue into the waste water. Cold outside, spraying with hot water due to spray, beer temperature caused by the bottle pressure rise, "deep-fried" phenomenon has occurred, resulting in a large number of beer scattered in the spray water. In order to prevent biological contamination, the need to add preservatives when recycling spray water, therefore, was replaced by waste spray water containing preservatives. Wash the bottles of waste water, please wash with alkaline detergent soak, and then pressure water and wash the end of the first wash, the bottle of cleaning water contains residual alkaline detergent, pulp, dyes, paste and so on. Alkaline detergent to be replaced on a regular basis, if replaced directly into the sewer, you can make the beer wastewater alkaline, therefore, waste alkaline washing should first enter the regulation, sedimentation unit for a separate treatment. If the bottle waste water effluent after treatment stored to regulate the wastewater PH value, you can save the sewage treatment dosage. This article information from the filter water purification from http://www.gyzhenyu.com finishing release.
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