摘要
试验对一个南方奶牛场的排污水进行沼气发酵和沉淀处理,利用沼气能源水泵回抽沉淀后的污水冲洗栏舍,初步探索奶牛场污水处理和循环利用模式。结果表明,奶牛场排污水经过沼气发酵和沉淀处理后,五日生化需氧量、化学需氧量、氨氮浓度、粪大肠菌群数和蛔虫卵数指标分别降低了64.0%、66.8%、65.9%、54.2%和26.5%,牛场平均每年节约用水约46.6%。
Experiment was conducted to study sewage treatment and recycling pattern through methane fermenting and sedimentation of wastewater,using sedimentary wastewater to wash stall in a southern Dairy Farm.The results showed that biochemical oxygen demand after 5 days,chemical oxygen demand,NH3-N concentration,fecal coliform number,ascaris egg number were reduced by 64.0%,66.8%,65.9%,54.2%,26.5%,respectively;and the annual water was saved in the farm amounted to 46.6%.
出处
《家畜生态学报》
2010年第6期67-69,共3页
Journal of Domestic Animal Ecology
基金
广西科学基金资助项目(桂科青0832074)
关键词
畜牧业
污水处理
循环利用
节水
animal husbandry
sewage treatment
recycling
water-saving
