啤酒厂污水处理工艺设计
摘要:啤酒废水水质的主要特点是含有大量的有机物,属高浓度有机废水,故其生化需氧量也较大
,
不经处理会对环境造成巨大污染,故要求处理后的排放水要严格达到国家二级排放标准
,即:
BOD≤30mg/ L,COD≤100mg/ L,SS≤70mg/ L。经分析知该处理水质属易生物降解又无明显
毒性的废水,可采用两级生物处理以使出水达标。一级处理主要采用物理法,用来去除污水中的悬
浮物质和无机物。二级处理主要采用生物法
,包括 UASB 法和 SBR 法,可有效去除污水中的
BOD、COD
→
→
→
。工艺流程为:啤酒废水
格栅
调节沉淀池
UASB
→
反应器
SBR
→
池
污泥处理系
→
统 处理水。整个工艺具有总投资少,处理效果好,工艺简单,占地面积省,运行稳定,能耗少的
优点。
关键词:啤酒废水处理 高浓度有机废水
UASB
法
SBR 法
Brewery sewage treatment craft design
Abstract : The main distinguishing feature of the beer waste water was that it contained the massive
organic matters, so it belonged to the high concentration organic waste water, therefore its biochemical
oxygen demand was also high, so it requested the beer waste water which discharged must be strictly
treated to the two effluence standard in the country, which was as following: BOD
≤30mg/ L,
COD
≤100mg/ L, SS≤70mg/ L. After the analysis, the quality of this processing water belonged to the
waste water that easy biology degrade and not have the obvious poison, and it could use two levels of
biological treatments to cause the water drained meet the designated standard. First level of processing
mainly used the physical methods, which removed the suspended matter and the inorganic substance in the
sewage. Second levels of processing mainly used the biology methods, consisted of UASB and SBR, which
could remove BOD, COD in the waste water. The technological process was: Beer waste water → Screens
→ Regulates precipitating tank → Reaction tank of UASB → Tank of SBR →Sludge disposal system→
Treatment water. The entire technological process had the characteristics of lower investment, good
treatment effect, easy technology process,using small area, running steady, and consuming lower energy.
Key words: Beer waste water treatment;High concentration of organic waste water;UASB process;SBR
process
1 概述
1.1 研究目的与意义
80 年代以来,我国啤酒工业得到迅速发展,到目前我国啤酒生产厂已有 800 多家,
据
1996 年统计我国啤酒产量达 1 650 万 t,既成为世界啤酒生产大国,又成为较高
浓度有机物污染大户,啤酒废水的排放和对环境的污染已成为突出问题,引起了各有
关部门的重视。由于啤酒废水中含有大量的有机物,排放对自然水体的影响非常大。基
于水污染的危害性和严重性,以保护环境为宗旨,以达到国家废水排放标准为要求来
设计啤酒废水排放设备,所以此处理工艺的设计旨在控制废水的
COD 浓度,减少对环
境的污染。
1.2 国内外研究现状
“
”
七五 以来,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,特别是
1