文章基本信息

标题：TREATMENT PROCESS SIMULATION OF WASTEWATER FROM A DAIRY PLANT USING COMPUTER SOFTWARE PACKAGE
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作者：Stefania Iordache ; Maria Iordan ; Cezarina Necula 等
期刊名称：Annals : Food Science and Technology
电子版ISSN：2065-2828
出版年度：2009
卷号：10
期号：1
出版社：Valahia University Press
摘要：The dairy industry involves processing raw milk into products such as consumer milk, butter, cheese, yogurt, condensed milk, dried milk (milk power), and ice cream, using a lot of specific processes. Dairy effluents contain dissolved sugars and proteins, fats, and possible residues of additives.. Cream, butter, cheese, and whey production are major sources of BOD in wastewater. Because of its high levels of protein and lactose, discharging wastewater from a dairy plant directly into the waterway could cause a severe pollution problem, most of all because of whey. The paper presents computer simulation scheme for aerobic treatment of wastewater from dairy processing plants that generate an average of 525 m3of wastewater daily. The primary aim of simulation was to reduce the 5-d biochemical oxygen demand (BOD5) of the wastewater so that the effluent could be discharged to the municipal sewage. It was simulated an aerobic treatment of wastewater from a dairy processing plant in two variants: using both a three-stage and a two-stage activated sludge plant. The simulation was realized using BioWIN 3.0, a simulator software package in which the user can define and analyze behavior of complex treatment plant configurations with single or multiple wastewater inputs. The simulation allowed to obtain some data regarding parameters of treatment process in order to increase the efficiency in operation
关键词：process simulation; aerobic treatment; dairy wastewater