有机废水快速渗滤处理系统中氧化还原环境特征

在啤酒废水交替淹水的土柱中安装了铂金和甘汞电极，对淹水—落干期间不同土壤深度的氧化—还原电位进行了测定．结果表明，在１００ｃｍ深度以上，随淹水—落干交替进行，土壤依次出现厌氧和好氧环境，在１００ｃｍ浓度以下，土壤中保持厌氧状态．据此将有机废水ＲＩ系统划分为不同的氧化—还原带，各带对有机污染物具有不同的净化功能．

THE REDOX CONDITION IN RAPID INFILTRATION TREATMENT SYSTEM OF ORGANIC WASTEWATER

The platinum electrode and calomal electrode were installed in soil column ingermittently flooded with brewery waste water and the redox potemtial at different depths and different periods was measured. The results indicated that the anaerobic and aerobic condition occured successively with the alternation of flooding and drying at above the depth of 100cm,but the anaerobic condition kept no changes under the depth of 100cm. The system was therefore divided into different radox gones. Different zones had different removal functions to organic contaminants.