摘要
华北稳定塘各塘底泥耗氧速率(SOD)值范围在0.78～2.2271g/m^2·d之间.随着污水不断处理净化.SOD值不断降低.好氧塘内浮游植物、浮游动物残体沉积以及底栖大型无脊椎动物的出现,将会使SOD值增加强化塘风车不断曝气有利于降低SOD.本研究为华北地区稳定塘运行、管理提供科学依据.
The rate of bottom sediment oxygen demand of stable ponds in North China was discussed in the paper. It was found that SOD value decreased with sewage treatment and purification. SOD values of all ponds ranged between 0.798g/m2 ?d and 2.271g/m2d. The sedimentation of phytoplankton and corpara of zooplankton, as weel as existence of macroinvertebrates in aerobic ponds made SOD increase. Continuous aeration by windwill in the enhanced pond was of advantage for decline of SOD values ?
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1991年第3期17-20,共4页
Urban Environment & Urban Ecology
