应用酵母菌处理木薯酒精废液的试验研究  

Treatment of cassava alcohol wastewater by yeast

作　　者：冼萍[1] 张萍[1] 杨剑[1] 王孝英[1] 

机构地区：[1]广西大学化学化工学院,南宁530004

出　　处：《环境工程学报》2008年第2期235-238,共4页Chinese Journal of Environmental Engineering

摘　　要：应用酵母菌对木薯酒精废液进行了小型批量的处理试验研究。结果表明，该菌种对于高浓度有机废水具有很强的适应能力，能迅速形成优势菌群，分解有机物。在进水pH5．0～5．5、温度30℃、曝气时间72h、接种量1‰（v／v，活菌数为4．1×10^6个／mL）、溶解氧2～3mg／L、BOD5：N：P为400：2：1条件下，COD和BOD5去除率可分别达85％和92％。该技术操作简单，可作为木薯酒精废液的一级生物处理，并可回收利用酵母蛋白。With small batch experiments, the technological conditions of cassava alcohol wastewater treatment by yeast were studied. The results showed that the yeast strain had a strong capability to adapt the highly organic substances concentration environment, grown fast, and rapidly degraded organic substances. The removal rates of COD and BOD of the wastewater can reach 85 % and 92% respectively under the following conditions： pH 5.0 - 5.5 ; temperature 25 - 30 ℃ ; treatment time 72 h ; inoculation amount 1‰ ; dissolved oxygen 2 - 3 mg/L; BOD5： N： P is 400： 2： 1. The operation of this technique is simple. It can be used as a first treatment process. Moreover it will obtain economic benefits by recovering yeast albumen.

关 键 词：酵母菌 木薯酒精废液 生物处理 

分 类 号：X703.1[环境科学与工程—环境工程]