Production of Yeast Protein Feed by Hypoxia Biochemical Treatment of Lysine Wastewater  

作　　者：Zhuang Zhenmin 

机构地区：[1]Quanzhou Daquan Lysine Co.,Ltd.

出　　处：《Animal Husbandry and Feed Science》2015年第1期39-41,共3页动物与饲料科学（英文版）

摘　　要：Hansenula anomala were general pale yellow oval-shaped bacteria in aerobic biochemical wastewater process,but transformed into pale yellow round-shape under hypoxia condition.A better precipitation of lysine wastewater could be obtained by using Hansenula anomala in hypoxia biochemical treatment.Therefore,the lysine wastewater could be used to produce yeast protein feed at 23-33 ℃ water temperature and 2.8-4.4 p H by Hansenula anomala in hypoxia condition.The results indicated that removal rate of chemical oxygen demand（COD） was 65.8%,and that of suspended substance（SS） was 95.6%.Then the deposited yeast protein was dried after secondary sedimentation and steam sandwich concentrated method.Results showed that 3.9 t yeast protein feed could be obtained every day,and its price was 3 000 Yuan per ton,so that the annual profit of company would be 9.6 million Yuan after deducting the operating cost of wastewater treatment.Hansenula anomala were general pale yellow oval-shaped bacteria in aerobic biochemical wastewater process,but transformed into pale yellow round-shape under hypoxia condition.A better precipitation of lysine wastewater could be obtained by using Hansenula anomala in hypoxia biochemical treatment.Therefore,the lysine wastewater could be used to produce yeast protein feed at 23-33 ℃ water temperature and 2.8-4.4 p H by Hansenula anomala in hypoxia condition.The results indicated that removal rate of chemical oxygen demand（COD） was 65.8%,and that of suspended substance（SS） was 95.6%.Then the deposited yeast protein was dried after secondary sedimentation and steam sandwich concentrated method.Results showed that 3.9 t yeast protein feed could be obtained every day,and its price was 3 000 Yuan per ton,so that the annual profit of company would be 9.6 million Yuan after deducting the operating cost of wastewater treatment.

关 键 词：Lysine wastewater Hansenula anomala Yeast mud Precipitation Mezzanine enrichment 

分 类 号：S816[农业科学—饲料科学]