循环水处理系统对规模化水产养殖的影响评价  

The Influence of Circulating Water Treatment System on Large-scale Aquaculture:An Evaluation

作　　者：董兴国 景红军 李令国 沈海荣 Dong Xingguo;Jing Hongjun;Li Lingguo;Shen Hairong(Xi'an Fishery Workstation,Xi’an 710018,Shaanxi,China)

机构地区：[1]陕西省西安市水产工作站,西安710018

出　　处：《农学学报》2020年第9期60-65,共6页Journal of Agriculture

基　　金：西安市水产品质量安全监管项目(YS-西安市-2019-00617)。

摘　　要：为了验证前期设计的基于池塘异位修复技术的水处理系统的养殖效果,进行了为期3年的规模化多品种饱和养殖试验。试验主要测定了该系统对普通淡水鱼养殖池塘水体中总氮(TN)、总磷(TP)、化学耗氧量(CODMn)和叶绿素(Chla)的控制效果。结果表明:在养殖的中前期,养殖塘循环水总磷水平达到地表水环境质量III类标准(GB 3838-2002),总氮水平达到地表水水环境质量III至V类标准(GB 3838-2002),系统对TP、TN、CODMn和Chla的平均去除率分别为40.13%、45.02%、43.37%和86.6%,去除效果显著;在养殖后期,随着饲料投入的持续增加,试验系统去除效率虽有大幅提高,但是各指标检测数据仍然高于预期。试验为淡水池塘的循环水处理规模化养殖用水提供了一种新的实践思路。To verify the practical culturing effect of a previously designed circulating water treatment system based on heterotopic pond restoration technology,a large-scale multi-species saturating culture experiment was carried out for 3 years.The effects of the system on water quality control was evaluated by measuring the total nitrogen(TN),total phosphorus(TP),chemical oxygen consumption(CODMn)and chlorophyll(Chla)in a common freshwater fish culturing pond.The results showed that in the early stage of the experiment,the total nitrogen level(TP)of the circulating water of the pond reached Class III of the Environmental Quality Standards for Surface Water(GB 3838—2002),and the total phosphorus level(TN)reached Class III to V.The average removal rate of TP,TN,CODMn and Chla was 40.13%,45.02%,43.37%and 86.6%,respectively.The removal efficiency of the system was significant.In the late stage of the experiment,with the continuous increase of the feed input,although the efficiency of the circulating system was greatly improved,the data of each index were still higher than expected.This experiment provides a new idea for the treatment of largescale aquaculture water by circulating water in freshwater ponds.

关 键 词：循环水处理系统 淡水池塘 总氮 总磷 化学需氧量 叶绿素A 评价 

分 类 号：S949[农业科学—水产养殖]