组合湿地系统对养殖尾水的净化效果

发布时间：2018-03-22 08:06

本文选题：莲藕净化塘　切入点：生态沟渠　出处：《渔业现代化》2016年03期 　论文类型：期刊论文

【摘要】：利用组合湿地系统对湖区池塘养殖尾水进行净化,以实现水体循环再利用,减少对周围水环境的污染。组合湿地系统由3个莲藕净化塘、1个生态沟渠和1个人工湿地组成,面积分别为2.1 hm2、1.47 hm2和0.52 hm2,其中净化塘莲藕的覆盖度分别为0%、30%、60%。沿程采样测定水化学指标。结果显示,组合系统能够有效降低养殖尾水中的总氮(TN)、总磷(TP)、氨氮(NH4+-N)和化学耗氧量(COD)等指标。TN、TP由初始值1.3 mg/L、0.76 mg/L降到0.4 mg/L、0.09 mg/L,去除率分别为41.5%、77.5%;NH4+-N、COD由初始值0.27 mg/L、42 mg/L降到0.06 mg/L、27 mg/L,去除率分别为77.7%、35%。研究表明,该组合湿地系统能有效净化养殖尾水,实现水体循环再利用,可有效缓解南四湖的入湖污染负荷。
[Abstract]:The combined wetland system was used to purify the pond culture tail water in the lake area, so as to recycle the water body and reduce the pollution to the surrounding water environment. The combined wetland system was composed of three lotus root purification ponds, one ecological ditch and one constructed wetland. The area of lotus root was 1.47 hm2 and 0.52 hm2, respectively, and the coverage of lotus root was 0.30 and 600.The chemical index of water was measured by sampling along the course. The combined system can effectively reduce the total nitrogen (TNN), total phosphorus (TP), NH4-N (NH _ 4-N) and chemical oxygen consumption (COD) from 1.3mg / L 0.76 mg/L to 0.4 mg / L 0.09 mg / L respectively, and the removal rate is 41.577.5mg / L from 0.27 mg / L ~ 42 mg/L to 0.06 mg / L ~ 27 mg / L ~ (27) mg 路L ~ (-1), respectively. The removal rate is 77.7% and 35% respectively. The combined wetland system can effectively purify the culture tail water, realize the recycling and reuse of the water body, and alleviate the pollution load of the Nansihu Lake effectively.
【作者单位】：山东省济宁市任城区水产局;山东省淡水渔业研究院;
【基金】：山东省现代农业产业技术体系鱼类创新团队(SDAIT-12-07) 山东省农业重大应用技术创新项目(20140903) 山东省农业科技成果转化项目(20141020) 山东省西部经济隆起带科技创新人才联合基金项目(XB2014FW024)
【分类号】：X714

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