光滑河蓝蛤对净化养殖废水的净化效果  

Purification Effect of Potamocorbula laevis on Aquaculture Wastewater

作　　者：周婷婷 郑荣泉[1] 林志华[2] 何琳[2] 

机构地区：[1]浙江师范大学化学与生命科学学院,浙江金华321000 [2]浙江万里学院生物与环境学院,浙江宁波315100

出　　处：《安徽农业科学》2017年第32期57-60,64,共5页Journal of Anhui Agricultural Sciences

基　　金：宁波市2015年度科技富民项目(2015C10008);国家贝类产业技术体系(CARS-49);浙江省公益性技术应用研究项目(2013C32058)

摘　　要：[目的]研究光滑河蓝蛤(Potamocorbula laevis)对大棚对虾养殖尾水的净化效果,确定净化废水时蓝蛤的养殖密度。[方法]设4个光滑河蓝蛤养殖密度处理,分别为0.5、1.0、2.0、3.0 ind/L,1个空白对照(CK),每组设置3次重复,养殖4 d,整个试验期间不换水,不投放饵料,测定不同处理对养殖废水中硝酸盐、氨氮(NH+4-N)、总磷(TP)、总氮(TN)的去除效果。[结果]光滑河蓝蛤4个养殖密度对NH+4-N、TP、硝酸盐均有显著的去除效果(P<0.05),其中,1.0 ind/L处理净化效果最佳,对废水中硝酸盐的去除效率为62%±15.06%,NH+4-N的去除效率为48%±9.41%,TP去除率为99%±17.78%,TN的去除率为60%±3.74%。CK的净化效果最低,对废水中硝酸盐、NH+4-N、TP、TN的去除率分别为15%±3.36%、16%±0.58%、38%±6.86%、33±1.58%。[结论]光滑河蓝蛤的最佳养殖密度为1.0 ind/L。[Objective]To study the purification effect of Potamocorbula laevis on tail water of shrimp culture in greenhouse,and determine the breeding density of Potamocorbula laevis during purification of wastewater. [Method]4 breeding densities(0. 5,1. 0,2. 0,3. 0 ind/L) and 1 blank control(CK) were set up,each treatment was repeated 3 times and cultured for 4 d. During the experiment,the water was not changed,and no bait was put into the feed. The removal efficiency of nitrate,NH+4-H,TP and TN in aquaculture wastewater was determined by different treatment. [Result]The 4 culture densities of Potamocorbula laevis have significant removal effects on ammonia nitrogen,TP and nitrate(P < 0. 05). Among them,the purification effect of 1. 0 ind/L treatment was the best,and the removal efficiency of nitrate in wastewater was 62% ± 15. 06%. The removal efficiency of NH+4-H was 48% ± 9. 41%. The removal efficiency of TP was 99% ± 17. 78%.The removal efficiency of TN was 60% ± 3. 74%. The removal efficiency of CK was the worst,and the removal rates of nitrate,NH+4-H,TP and TN in wastewater were 15% ± 3. 36%,16% ± 0. 58%,38% ± 6. 86% and 33% ± 1. 58%,respectively. [Conclusion]The optimum culture density of Potamocorbula laevis was 1. 0 ind/L.

关 键 词：光滑河蓝蛤 养殖废水 净化效果 去除率 

分 类 号：S949[农业科学—水产养殖]