The Engineering Design For The Treatment Of Yellow Crane Tower Liquor Brewing Wastewater

Liquor industry plays an important role in the national economy. The emission of organic pollutants concentration is highest on Alcohol production industry the in China. Brewery wastewater that is difficult to deal with has the characteristics of high concentration of organic matter, more suspended particles, large BOD/COD ratio and so on. When released into the rivers it should cause serious eutrophication of water bodies and lead to the red tide phenomenon. Therefore, to explore and design a cost-effective wastewater treatment solutions has very important significance.In this paper, the sewage treatment plant project of Tianlong Yellow Crane Tower liquor-ecological wine base in Xianning for the study is the research object. The project is located in Xianning Economic Development Zone. And it is the supporting sewage treatment facilities for Yellow Crane Tower liquor wine base in Xianning. The amount of this winery wastewater is 100t/d, the concentrations of major pollutants are: COD 20000 mg/L, NH3-N 45 mg/L. The quality of water treated wastewater should reach "fermentation alcohol and spirits industry water pollutant discharge standards" (GB27631-2011) in Table 2-the new enterprise vertical limits of water pollutants, COD 100 mg/L, NH3-N 10 mg/L. According to water quantity and quality characteristics of wine brewing wastewater from the Yellow Crane Tower liquor and the emission standards required to achieve, the wastewater treatment process engineering was studied and completed by studied on the appropriate technology for wastewater treatment. By consulting a large number of documents in the early, comparative analysed the advantages and disadvantages of the domestic and foreign brewery wastewater treatment methods. determine the brewery wastewater treatment works to be used mainly in biological treatment, physical and chemical methods, supplemented by the "anaerobic-aerobic" a combination of treatment technologiesBased on the full analysis of the wastewater treatment project of ecological wine making base in Xianning, the wastewater quality and wastewater discharge standards, proposed "pretreatment-anaerobic-aerobic-fine processing" technology route. The anaerobic biogas generation and biological aerated filter (BAF) is applied in the engineering. The processing efficiency, performance, investment costs, etc. for UASB, IC and EGSB in anaerobic process were forecast and compared, and the two stage UASB reactor for anaerobic treatment was determined. Four aspects including investment, operation, effect of process and management of BAF, SBR and CASS in aerobic process were forecast and compared, and the "SBR+two grade BAF" was determined. After the selection of the main process, "Preprocessing-UASB-SBR-BAF (C)-BAF (N)-Air Flotation-fiber ball filter-UV sterilizer" was determined to be the wastewater treatment process of this project. On the basis of the research results of wastewater treatment process, the design and equipment selection of main structures of wastewater treatment process are completed. Meanwhile, the corresponding requirements for the layout and design of the sewage station elevation were made to ensure the smooth operation of the wastewater treatment plant.After commissioning into operation, local environmental monitoring station monitored outlet. Monitoring results show that the water quality reaches "fermented alcohol and liquor industrial water pollutant discharge standard" (GB27631-2011) Table 2 new enterprises direct discharge of water pollutants limit requirements, and achieved good environmental benefits, economic and social benefits.The process route and equipment designed in this paper can be used as a reference for the applications of liquor making wastewater treatment.