曝气对生物基质技术处理养殖废水脱氮除磷效果的影响特征及机理  

Characteristics and Mechanism of the Effect of Aeration on Nitrogen and Phosphorus Removal from Swine Wastewater Treated by Biological Matrix Technology

作　　者：蒋磊 刘铭羽 李希[1] 孟岑[1] 张满意[1] 李裕元[1] JIANG Lei;LIU Mingyu;LI Xi;MENG Cen;ZHANG Manyi;LI Yuyuan(Key Laboratory of Subtropical Agro-ecological Processes,Institute of Subtropical Agro-ecology,Chinese Academy of Sciences,Changsha 410125,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院亚热带农业生态研究所,亚热带农业生态过程重点实验室,长沙410125 [2]中国科学院大学,北京100049

出　　处：《水处理技术》2021年第9期71-76,共6页Technology of Water Treatment

基　　金：国家重点研发计划项目(2018YFD0800103);河南省重大科技专项(161100310600)。

摘　　要：通过设置曝气控制实验,探讨曝气对生物基质系统处理养殖废水处理效果的影响特征。结果表明:1)随着曝气强度的增加,COD、NH_(4)^(+)-N、TN、TP的去除率有显著提升,最大可分别提升54.5%、66.8%、64.4%、69.0%;2)曝气对于氮磷去除效率的提升作用存在临界点,本实验最佳的气水比临界值为8;3)通过适度曝气提升基质系统的处理效率,可显著降低工程成本和后端生态湿地的占地面积,最大幅度可降低60%左右。By setting the aeration control experiment,the influence characteristics of aeration on the treatment effect of swine wastewater in bio-matrix system were discussed.The results showed that,1)with the increase of aeration strength,the removal rate of COD,NH_(4)^(+)-N,TN and TP increased significantly,and the maximum could be increased by 54.5%,66.8%,64.4%,69.0%;2)aeration had a critical point in the improvement of nitrogen and phosphorus removal efficiency,the optimal gas-to-water ratio in this experiment had a critical value of 8;3)by moderate aeration to improve the processing efficiency of the matrix system,the engineering cost and the back-end ecological wetland area could be significantly reduced,which could be reduced by about 60%.

关 键 词：养殖废水 气水比 生物基质系统 资源化利用 稻草 

分 类 号：X703.1[环境科学与工程—环境工程]