摘要
谷氨酸发酵液经冷冻等电一离交排出的废水，无论是经除菌体回收蛋白，还是未经除菌体排出的味精废水，都含有丰富的有机、无机营养物，可被微生物利用、转化为菌体蛋白。在废水CODcr含量约为35000mg／L的情况下，可制取干菌体约18g／L，废水中CODcr去除率可达65％以上，出水CODcr降至10000mg／L左右。且饲料酵母生产成本约3000元/t。因此具有较好的经济效益、环境效益和社会效益。
The monosodium glutamate waste liquid from the process of monosodium glutamate production by isoeletric point precipitation and positive ion exchange methods, which excludes/includes the monosodium glutamate cells,contains abundant organic and inorganic substances which can be used as the nutrients to produce feeding yeast. If the content of CODcr is about 35000 mg/L in monosodiun glutamate wastewater,the average yield of dried yeast is 18 g/L. The eliminating rate of CODcr in the liquid can reach more than 65 % and CODcr in the effluent is about 10000mg/L. The production cost of feeding yeast is about 3000 Yuan/ton. Therefore the economic, environmental and social effects of the process are well.
出处
《环境污染与防治》
CAS
CSSCI
CSCD
北大核心
1997年第2期13-16,共4页
Environmental Pollution & Control
关键词
味精废水
微生物
转化
废水处理
效益
Monosodium glutamate waste liquid Microorganism decomposition
