Degradation of Milking Parlour Wastewater from Dairy Farming by Electrochemical Oxidation
Electrochemical oxidation of milking parlour wastewater and waste milk was investigated in this study.Dairy farming discharges large amounts of wastewater contained dairy manure,washing fluid and some chemicals from a milking parlour.Waste milk is frequently discharged with the wastewater.It is difficult to apply biological treatment for milking parlour wastewater,because organic load of waste milk is not stable and wastewater contains biologically persistent matters.Electrochemical treatment is considered as one of the advanced oxidation processes.We discussed the effect of anode materials on degradability of organic matters in milking parlour wastewater and waste milk.The concentration of COD of milking parlour wastewater was decreased 14% or 45% in 6 hours by electrochemical treatment using a DSA or Ti/PbO2 anode,respectively.The electrochemical oxidation at both anodes had low degradability of low molecular weight carboxylic acid such as acetic acid in milking parlour wastewater.The concentration of COD of diluted raw milk was decreased 88% by electrochemical treatment using a Ti/PbO2 anode for 6 hours.It was indicated that lactose in waste milk was degraded by electrogenerated oxidants,which was adsorbed on Ti/Pb02 anode.The result suggested that electrochemical treatment using a Ti/Pb02 anode was suitable for the treatment of waste milk.
Electrochemical oxidation Milk fat Milking parlour wastewater Waste milk
G.YOSHIDA I.IHARA K.TOYODA K.UMETSU
Department of Agricultural Engineering and Socio-Economics,Faculty of Agriculture Kobe University,1- Department of Animal and Food Hygiene,Obihiro University of Agriculture and Veterinary Medicine,lnad
国际会议
The 2nd China-Japan Graduate Student Forum -- Life, Environment and Energy (第二届中日研究生论坛--生命,环境与能源)
北京
英文
142-146
2009-09-24（万方平台首次上网日期，不代表论文的发表时间）