狐尾藻对养殖废水的减控去污效果
[目的]研究狐尾藻对不同浓度养殖废水的净化效果,为推广新型水生植物品种在处理养殖废弃物中的应用提供参考依据.[方法]将狐尾藻投放于分别经过养殖场1、2、3、4和5级处理的废水中培养,在试验期间测量各级废水氨氮(NH4+-N)、总氮(TN)、总磷(TP)、固体悬浮物(SS)及化学需氧量(COD)的浓度,绘制其变化曲线,计算污染物的去除率.[结果]经1~5级处理后的养殖废水中NH4+-N、TN、TP、SS及COD浓度均呈试验前期快速下降、后期缓慢降低的变化趋势.至试验结束时,各级废水中NH4+-N的总平均去除率最高,达94.5%;TP的平均去除率相对较低,为74.6%;TN、SS和COD的总平均去...
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Published in | 南方农业学报 Vol. 48; no. 7; pp. 1204 - 1210 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
广西农业科学院 农业资源与环境研究所,南宁,530007
2017
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Subjects | |
Online Access | Get full text |
ISSN | 2095-1191 |
DOI | 10.3969/j.issn.2095-1191.2017.07.12 |
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Summary: | [目的]研究狐尾藻对不同浓度养殖废水的净化效果,为推广新型水生植物品种在处理养殖废弃物中的应用提供参考依据.[方法]将狐尾藻投放于分别经过养殖场1、2、3、4和5级处理的废水中培养,在试验期间测量各级废水氨氮(NH4+-N)、总氮(TN)、总磷(TP)、固体悬浮物(SS)及化学需氧量(COD)的浓度,绘制其变化曲线,计算污染物的去除率.[结果]经1~5级处理后的养殖废水中NH4+-N、TN、TP、SS及COD浓度均呈试验前期快速下降、后期缓慢降低的变化趋势.至试验结束时,各级废水中NH4+-N的总平均去除率最高,达94.5%;TP的平均去除率相对较低,为74.6%;TN、SS和COD的总平均去除率分别为84.5%、81.3%和79.1%.[结论]狐尾藻能有效去除养殖废水中NH4+-N、TN、TP、SS及COD等污染物,改善水质环境,在治理和修复污染水体方面具有良好的应用前景. |
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Bibliography: | DONG Wen-bin, HE Tie-guang, MENG Yan-cheng, LI Zhong-yi, WEI Cai-hui, ZHANG Ye, YU Yue-feng, TANG Hong-qin, ZHANG Jun-hui, WANG Jin, LI Ting-ting (Agricultural Resources and Environment Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China) 45-1381/S [Objective]Purification effects of Myriophyllum spicatum on livestock wastewater of different concentra-tions were studied, in order to provide theoretical basis for prornoting the new aquatic plant species in treatment of live-stock residue. [Method]M. spicatum was cultivated in wastewater from livestock farm treated by grade 1, 2, 3, 4 and 5 wastewater treatment. During the experiment, the concentrations of ammonia nitrogen(NH4+-N), total nitrogen(TN), to-tal phosphorus(TP), suspended solid(SS), chemical oxygen demand(COD) in wastewater of different levels were mea-sured. The change curves of the indicators were drawn. Pollutant removal rate was calculated by comparing with raw water before experiment. [Result]The concentrations of NH4+-N, TN |
ISSN: | 2095-1191 |
DOI: | 10.3969/j.issn.2095-1191.2017.07.12 |