不同沉水植物及其组合对水质的净化效果
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摘要
[目的]研究不同沉水植物及其组合对水质的净化效果。[方法]通过静态模拟试验,对3种不同的沉水植物(轮叶黑藻、苦草、粉绿狐尾藻)及其4种组合方式(苦+轮、苦+粉、轮+粉和苦+轮+粉)对水体中NH3-N、TP和COD_(Mn)的净化效果进行研究。[结果]单一沉水植物中,苦草对水体中TP和COD_(Mn)的净化效果相对较好,最大去除率分别达52.3%和43.2%,轮叶黑藻对NH3-N净化效果最佳,最大去除率达60.3%。4种组合方式中,苦+轮的水质净化效果相对最佳,对水体中NH3-N、TP和COD_(Mn)的最大去除率分别达62.6%、58.6%和40.2%。[结论]综合分析3种沉水植物及其组合方式对NH3-N、TP和COD_(Mn)的平均净化效果,轮叶黑藻、苦草、苦+轮和苦+粉的综合净化效果较好,表明轮叶黑藻、苦草、苦+轮和苦+粉更适合作为水体原位修复的种植植物。
[Objective] The research aimed to study the purification effect of different submerged macrophytes and their combinations on the water quality. [Method] The purification effect on NH3-N,TP and COD_(Mn)in water were studied by three different submerged macrophytes such as Hydrilla verticillata,Vallisneria natans,Myriophyllum aquaticum and their four combinations( Vallisneria natans+Hydrilla verticillata,Vallisneria natans+Myriophyllum aquaticum,Hydrilla verticillata+Myriophyllum aquaticum,Vallisneria natans +Hydrilla verticillata+ Myriophyllum aquaticum).[Result]In a single submerged macraphyte,the purification effect on TP and COD_(Mn)of Vallisneria natans was higher than the other two submerged macrophytes and the maximum removal efficiency reached 52.3%和 43.2%,respectively.The purification effect on NH3-N of Hydrilla verticillata was higher than the other two submerged macrophytes and the maximum removal efficiency reached 60.3%.Among the four combinations,the purification effect on NH3-N,TP and COD_(Mn)of combination between Vallisneria natans with Hydrilla verticillata was higher than the other three combinations and the maximum removal efficiency reached 62.6%,58.6% and 40.2%,respectively. [Conclusion]Through comprehensive analysis,the average purification effect on NH3-N,TP and COD_(Mn)by planting Hydrilla verticillata,Vallisneria natans,combination between Vallisneria natans with Hydrilla verticillata,combination between Vallisneria natans with Myriophyllum aquaticum are higher than others. This study proves that Hydrilla verticillata,Vallisneria natans,combination between Vallisneria natans with Hydrilla verticillata,combination between Vallisneria natans with Myriophyllum aquaticum are more suitable for planting in situ restoration of water bodies.
[Objective] The research aimed to study the purification effect of different submerged macrophytes and their combinations on the water quality. [Method] The purification effect on NH3-N,TP and COD_(Mn)in water were studied by three different submerged macrophytes such as Hydrilla verticillata,Vallisneria natans,Myriophyllum aquaticum and their four combinations( Vallisneria natans+Hydrilla verticillata,Vallisneria natans+Myriophyllum aquaticum,Hydrilla verticillata+Myriophyllum aquaticum,Vallisneria natans +Hydrilla verticillata+ Myriophyllum aquaticum).[Result]In a single submerged macraphyte,the purification effect on TP and COD_(Mn)of Vallisneria natans was higher than the other two submerged macrophytes and the maximum removal efficiency reached 52.3%和 43.2%,respectively.The purification effect on NH3-N of Hydrilla verticillata was higher than the other two submerged macrophytes and the maximum removal efficiency reached 60.3%.Among the four combinations,the purification effect on NH3-N,TP and COD_(Mn)of combination between Vallisneria natans with Hydrilla verticillata was higher than the other three combinations and the maximum removal efficiency reached 62.6%,58.6% and 40.2%,respectively. [Conclusion]Through comprehensive analysis,the average purification effect on NH3-N,TP and COD_(Mn)by planting Hydrilla verticillata,Vallisneria natans,combination between Vallisneria natans with Hydrilla verticillata,combination between Vallisneria natans with Myriophyllum aquaticum are higher than others. This study proves that Hydrilla verticillata,Vallisneria natans,combination between Vallisneria natans with Hydrilla verticillata,combination between Vallisneria natans with Myriophyllum aquaticum are more suitable for planting in situ restoration of water bodies.
引文
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[8]常素云,吴涛,赵静静.不同沉水植物组配对北大港水库水体净化效果的影响[J].环境工程学报,2016,10(1):439-444.
[9]任文君,田在锋,宁国辉,等.4种沉水植物对白洋淀富营养化水体净化效果的研究[J].生态环境学报,2011,20(2):345-352.
[10]钟运芳,王慈生,熊天寿.重庆市江河鱼类饵料生物——水生维管束植物[J].重庆师范学院学报(自然科学版),1994,11(2):48-52.
[11]钟成华,王涛,曾雪梅,等.苦溪河长生桥镇河段污染水体的生态修复工程实践[J].三峡环境与生态,2013,35(4):56-59.
[2]WANG X,HAO C B,ZHANG F,et al.Inhibition of the growth of two bluegreen algae species(Microsystis aruginosa and Anabaena spiroides)by acidification treatments using carbon dioxide[J].Bioresource technology,2011,102(10):5742-5748.
[3]WU X G,JOYCE E M,MASON T J.The effects of ultrasound on cyanobacteria[J].Harmful algae,2011,10(6):738-743.
[4]钱珍余,王晓雪,钟成华,等.不同基质对苦草净化水质效果的影响[J].安徽农业科学,2014,42(36):13001-13004.
[5]胡莲,万成炎,沈建忠,等.沉水植物在富营养化水体生态恢复中的作用及前景[J].水利渔业,2006,26(5):69-71.
[6]王丽卿,李燕,张瑞雷.6种沉水植物系统对淀山湖水质净化效果的研究[J].农业环境科学学报,2008,27(3):1134-1139.
[7]孙作登,宋祥甫,付子轼,等.不同沉水植物对水质净化效能的研究[J].上海农业学报,2012,28(2):30-35.
[8]常素云,吴涛,赵静静.不同沉水植物组配对北大港水库水体净化效果的影响[J].环境工程学报,2016,10(1):439-444.
[9]任文君,田在锋,宁国辉,等.4种沉水植物对白洋淀富营养化水体净化效果的研究[J].生态环境学报,2011,20(2):345-352.
[10]钟运芳,王慈生,熊天寿.重庆市江河鱼类饵料生物——水生维管束植物[J].重庆师范学院学报(自然科学版),1994,11(2):48-52.
[11]钟成华,王涛,曾雪梅,等.苦溪河长生桥镇河段污染水体的生态修复工程实践[J].三峡环境与生态,2013,35(4):56-59.