摘要
构建了集水质净化、水体增氧与植物种植等多种功能于一体的悬浮式生态滤床系统,研究了该系统在鮰鱼养殖塘中的实际应用效果。结果表明,当水力负荷为0.2 m3/(m2.h)时,系统的增氧效率最高;生物预挂膜周期为20 d左右,成功挂膜后,对COD的去除率可达65%;稳定运行期间,鱼塘的SS、NH3-N和NO2--N浓度均值分别为3.5、0.26和0.17 mg/L。良好的水质状况降低了养殖成本,提高了鮰鱼产量,并实现了渔业养殖废水的资源化利用。
A kind of suspended ecological filter bed system, which integrated water quality purification, oxygenation and plant cultivation, was constructed. The application of the system in longsnout catfish pond was investigated. The results showed that when the hydraulic load was 0.2 m^3/（ m^2. h） , the oxygenation efficiency of the system peaked. The period of biofilm formation was about 20 d. After biofilm formation, the removal rate of COD was 65%. During the steady operation period, the average concentrations of SS, NH3 - N and NO2- - N were 3.5 mg/L, 0.26 mg/L and 0.17 mg/L respectively. The good water quality reduced the cost of aquaculture, improved the fish yield and fulfilled the resource utilization of fishery breeding wastewater.
出处
《中国给水排水》
CAS
CSCD
北大核心
2012年第21期135-137,141,共4页
China Water & Wastewater
基金
江苏省环保厅科研课题(201014)
淮阴工学院科研项目(2917278)
关键词
悬浮式生态滤床
渔业养殖水体
原位修复
suspended ecological filter bed
aquaculture water body
in-situ remediation
