铵饱和天然钙型沸石基质人工湿地对模拟养猪废水的处理效能  

Performance of Circular Flow Constructed Wetland(CFCW) Stuffed with Natural Ca-Form Zeolite Saturated with Ammonium for Simulated Swine Wastewater Treatment

作　　者：高红杰[1] 彭剑峰[1] 宋永会[1] 刘静[1,2] 叶捷[1,3,4] 

机构地区：[1]中国环境科学研究院城市水环境研究室,北京100012 [2]南京农业大学工学院,南京210031 [3]湖南大学环境科学与工程学院,长沙410082 [4]湖南大学环境生物与控制教育部重点实验室,长沙410082

出　　处：《环境保护科学》2010年第6期14-16,34,共4页Environmental Protection Science

基　　金：水体污染控制与治理科技重大专项"城市重污染河道综合整治技术研究"子课题(2008ZX07208-003)

摘　　要：针对养猪废水中有机污染物和氨氮（NH4＋-N）浓度高、悬浮物含量高的特点,采用循环流人工湿地工艺对其进行处理,研究以天然钙型沸石为基质的人工湿地对模拟养猪废水的处理效能。结果表明：历时22个月的高NH4＋-N负荷运行,已使人工湿地中的钙型沸石对NH4＋-N的吸附达到饱和。在天然钙型沸石填料铵饱和条件下,湿地系统对模拟养猪废水中NH4＋-N的处理效果仍可达61%~76%,对TN的去除率可达66%~80%,对CODCr的去除率一直维持在78%~92%之间。Swine wastewater contains high concentrations of organic contaminants, ammonium nitrogen（NH＋4-N） and suspended solids.The circular flow constructed wetland（CFCW） stuffed with natural Ca-form zeolite was employed to treat swine wastewater and its treatment efficiency was studied.The results showed that natural Ca-form zeolite in CFCW had been saturated with NH＋4-N due to adsorption after 22 months performance with high NH＋4-N load,and under such condition,the elimination rates of the wetland system for NH＋4-N,TN,and CODCr removals still kept at 61%～76%,66%～80%,and 78%～92%,respectively.

关 键 词：铵饱和 天然钙型沸石 循环流人工湿地 模拟养猪废水 基质 

分 类 号：X710.3[环境科学与工程—环境工程]