摘要
构建了适用于水产养殖水体原位修复的滤料浮床生态调控系统,考察了不同床水比(浮床面积与水体面积比)条件下的水产养殖水体原位修复效果。结果表明,当床水比为1∶10时,试验周期内的化学需氧量(CODMn)、NH3-N和溶解氧(DO)分别维持在20、0.07和6.5 mg/L左右,鱼苗的成活率和增重率比无浮床系统分别提高了13%和25%;床水比为1∶15时,净化能力不足,水质指标逐渐恶化;床水比为1∶5时,布水装置启动频繁,减缓鱼苗的生长速度。
s： A kind of ecological regulation and control system of floating bed used for in-situ remediation for aquaculture wa-ter body was constructed. The effects of in situ remediation under conditions with different bed and water ratio were investi-gated. The results showed that,when the area of bed and water ratio was 1：10,CODMn,NH3-N and DO were maintained at 20 mg/L,0.07 mg/L and 6.5 mg/L respectively in the experimental period. Compared with non floating bed system,the survival rate and the growth rate of fries in floating bed system increased by 13% and 25% respectively. When the area of bed and water ratio was 1：15,the purification capacity was insufficient,and the water quality was gradually deteriorated. When the area of bed and water ratio was 1：5,the water distribution device was frequently started, and the growth rate of fries was slowed down.
出处
《湖北农业科学》
2017年第11期2052-2054,共3页
Hubei Agricultural Sciences
基金
江苏省大学生创新训练计划项目(201511049061X)
关键词
滤料浮床
养殖水体
床水面积比
原位修复
filter material floating bed
aquaculture water
the area of bed and water ratio
in-situ remediation
