生态沟渠中盘培牧草对养猪场废水降污效果研究  

Study on Effects of Pasture Strips in Ecological Ditch on Degradation of Pollutants in Piggery Wastewater

作　　者：陈海生[1] 宋仿根 刘建飞[1] 任红侠[1] 

机构地区：[1]浙江同济科技职业学院,浙江杭州311231 [2]浙江省平湖市农经局,浙江平湖311400

出　　处：《江西农业学报》2010年第8期152-155,共4页Acta Agriculturae Jiangxi

基　　金：浙江省水利厅科技专项资助项目(RCO910)

摘　　要：浙江省杭嘉湖区域水网沟渠发达,是浙江省最大的粮食产区,化肥施用量较高,农业污染日渐严重。本研究采用不另外占用土地的、以盘培多花黑麦草和高羊茅牧草为主要内容的生态沟渠湿地来降解养猪场废水,并分析各项污染物指标在沟渠中的迁移变化。结果表明:多花黑麦草对养猪场废水中的总N、总P的降污能力都要强于高羊茅,对于沟渠水体中的增氧能力则弱于高羊茅。在铺设盘培牧草的600 m沟渠中,各种污染物指标在靠近污水入口处的300 m沟渠内降解速度较快,而在远离污水入口处的后300 m沟渠内变化幅度相对比较平缓。Aiming at the severity of agricultural pollution in the fields and river channels resulted from the piggery wastewater of Hangjiahu district in Zhejiang province,the ecological ditches were constructed to purify the piggery wastewater flowing through the ditches,which were mainly composed of pasture stripes(Festuca arundinacea and Lolium multiflorum stripes).The changes in the contents of COD,SS,TN,TP and DO in piggery wastewater along the ditches were inspected.The results showed that the ditches treated with Lolium multiflorum stripes had stronger capability of adsorbing and degrading the pollutants in piggery wastewater than those treated with Festuca arundinacea stripes.In the 600 m ditches which were mainly composed of pasture stripes,the degradation velocity of pollutants in piggery wastewater flowing through the ditches near the entrance was greater than that far away from the entrance.

关 键 词：生态 沟渠湿地 牧草 养猪场废水 降污 效果研究 PIGGERY Wastewater Strips 污染物指标 多花黑麦草 高羊茅 浙江省 水入口 化肥施用量 杭嘉湖区域 主要内容 占用土地 农业污染 能力 粮食产区 

分 类 号：S[农业科学]