Potential for stainless steel microfiltration processing to reduce effluent from a fluid milk and ice cream processing plant

被引:11
|
作者
Yip, V
Arntfield, SD
Hydamaka, AW
机构
[1] Department of Food Science, University of Manitoba, Winnipeg
关键词
microfiltration; chemical recovery; dairy effluent treatment; chemical oxygen demand reduction;
D O I
10.3168/jds.S0022-0302(96)76417-2
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The use of a porous stainless steel micromembrane system was investigated as a means of chemical recovery and effluent pretreatment for the dairy industry. With a volume recovery of 89%, the chemical solutions recovered from the permeate stream, such as caustic, chlorinated alkaline, and acidic solutions, retained their strengths. Because of the reduction in suspended solids, protein, and fat, the chemical solutions could be reused. The system also effectively removed suspended solids, fat, and protein from dairy products and from combined dairy effluents, corresponding to a 74 to 76% removal of chemical oxygen demand from combined dairy effluents. The use of coagulation and flocculation or UF prior to or after the system did not provide additional benefits in chemical oxygen demand or solids removal.
引用
收藏
页码:710 / 716
页数:7
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