不同沉水植物对南京市某河道污染物去除效果实验研究
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摘要
通过对金鱼藻、伊乐藻、苦草3种沉水植物在不同水质条件下对污染物去除效率的研究发现,在实验周期内,不同水质条件下各沉水植物对污染物的平均去除效果:金鱼藻对NH_3-N、TP、COD_(cr)的去除率分别为94.5%、73.4%、65.4%,伊乐藻对NH_3-N、TP、COD_(cr)的去除率分别为91.8%、71.9%、32.1%,苦草对NH_3-N、TP、COD_(cr)的去除率分别为69.5%、59.9%、35.6%。综合分析发现金鱼藻、伊乐藻和苦草种植是河流治理中用于水质提升的一种重要技术措施,金鱼藻对污染物的去除效果最好,依次为伊乐藻、苦草。
Through the study on the removal efficiency of pollutants in three different submerged plants of Ceratophyllum, Elodea and Vallisneria, the average removal effect of pollutants by submerged plants under different water quality conditions during experimental period was found. The removal rates of NH_3-N, TP and COD_(cr) were of Ceratophyllum 94.5%, 73.4% and 65.4%, respectively. The removal rates of NH_3-N, TP and COD_(cr) of Elodea were 91.8%, 71.9% and 32.1%, respectively. The removal rates of NH_3-N, TP and COD_(cr) of Vallisneria were 69.5%, 59.9% and 35.6%, respectively. Comprehensive analysis of the results found that Ceratophllm, Elodea and Vallisneria planting is an important technical measure for water quality improvement in river treatment and Ceratophyllum has the best effect on the removal of pollutants, followed by Elodea and Vallisneria.
Through the study on the removal efficiency of pollutants in three different submerged plants of Ceratophyllum, Elodea and Vallisneria, the average removal effect of pollutants by submerged plants under different water quality conditions during experimental period was found. The removal rates of NH_3-N, TP and COD_(cr) were of Ceratophyllum 94.5%, 73.4% and 65.4%, respectively. The removal rates of NH_3-N, TP and COD_(cr) of Elodea were 91.8%, 71.9% and 32.1%, respectively. The removal rates of NH_3-N, TP and COD_(cr) of Vallisneria were 69.5%, 59.9% and 35.6%, respectively. Comprehensive analysis of the results found that Ceratophllm, Elodea and Vallisneria planting is an important technical measure for water quality improvement in river treatment and Ceratophyllum has the best effect on the removal of pollutants, followed by Elodea and Vallisneria.
引文
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[ 2 ] 王晓,曲媛媛,邓忠伟.河流生态治理现状浅析[J].资源节约与环保,2016(05):175.
[ 3 ] 张邦喜,李存雄,夏品华,等.沉水植物水质净化研究及在前置库中的应用[J].安徽农业科学,2010,38(22):11931-11932.
[ 4 ] Miao L,Wu Y J,Yu Z L,et al.Enhanced nitrogen and phosphorus removal from eutrophic lake water by Ipomoea aquatica with low-energy ion implantation.[J].Water Research,2009,43(5):1247-1256.
[ 5 ] 王沛芳,王超,王晓蓉,等.苦草对不同浓度氮净化效果及其形态转化规律[J].环境科学,2008(04):890-895.
[ 6 ] 曹欠欠,于鲁冀,吕翠美,等.四种沉水植物对城市污染水体的净化效果研究[J].人民黄河,2017,39(05):76-80.
[ 7 ] 金树权,周金波,包薇红,等.5种沉水植物的氮、磷吸收和水质净化能力比较[J].环境科学,2017,38(01):156-161.
[ 8 ] 种云霄,胡洪营,钱易.大型水生植物在水污染治理中的应用研究进展[J].环境污染治理技术与设备,2003(02):36-40.
[ 9 ] 姚会文.沉水植物的富营养水体修复研究[J].环境与发展,2017,29(07):198-200.
[10] 黄小龙,郭艳敏,万斌,等.沉水植物恢复对城市富营养化湖泊生态环境影响[J].环境工程,2018,36(07):17-21.
[11] 李金中,李学菊.人工沉床技术在水环境改善中的应用研究进展[J].农业环境科学学报,2006(S2):825-830.
[12] 戴青松,张翠英,汪永进,等.秋季沉水植物对人工湖泊水质净化效果研究[J].湿地科学与管理,2014,10(02):38-41.