UASB工艺在规模化处理米酒糟废水中的应用  

APPLICATION OF UASB IN THE LARGE-SCALE TREATMENT OF RICE FLAVOR LIQUOR LEES

作　　者：郭庆东 黄杰龙 寇巧花 曾钧 

机构地区：[1]广东长乐烧酒业股份有限公司,广东梅州514469

出　　处：《水处理技术》2013年第6期125-128,共4页Technology of Water Treatment

摘　　要：米香型白酒为半固态发酵、蒸馏而成,其酒糟水具有数量大、蛋白含量高等特点,直排势必会给当地环境造成巨大的污染。采用厌氧消化-三级曝气-三级沉淀的工艺,可使处理后的酒糟废水COD达到100 mg/L以内,达标排放,同时可以产生沼气,获得一定的经济效益。着重探讨了UASB厌氧消化工艺包含的菌种驯化、菌种扩培、厌氧罐启动、厌氧罐处理能力核算、进料方式的影响等5个技术环节的要求,同时简要说明好氧处理阶段,曝气环节通气量要求、沉淀环节污泥回流要求等信息,希望能给相关行业提供积极的借鉴意义。Riee flavor liquor is a kind of distilled spirits made from semi-solid state fermentation. Its lees water has some properties, such as large quantities, high protein content and so on. The direct discharge of lees water would cause serious environment pollution. The COD in the lees water was less than 100 mg/L after treated by the combined process of anaerobic digestion, three-stage aeration and three-stage sedimentation. Then the treated lees water meets the discharged standard, meanwhile, brings certain economic benefits by generation ofbiogas. The requirements of following five technology links in anaerobic digestion were discussed specially in this paper： strain domesticating, strain enlarge cultivation, startup of anaerobic tank, anaerobic tank processing capacity calculation, the influence of feed way. The aerobic treatment stage, the ventilation requirement in aeration link and the sludge reflux requirement in sedimentation link were introduced in this paper.

关 键 词：米酒糟水 COD UASB 厌氧 好氧 

分 类 号：X783[环境科学与工程—环境工程]