植被和温度对水平潜流人工湿地养分去除及微生物处理的影响研究
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摘要
为研究芦苇、水葱、香蕉、千屈草四种植物迁移养分的能力,采用水平潜流人工湿地处理生活废水,在四个季节分别测定了出水中COD、BOD、氨氮、总氮、总磷含量,结果表明:水平潜流人工湿地处理生活废水效果较好,出水水质能达到污水综合排放二级标准,芦苇对氨氮去除效果较好,千屈草对COD、BOD去除效果均较好,香蕉对总氮去除效果较好。湿地中微生物种类及数量随着水流方向逐渐递减,在温度为15℃～20℃时四种植物下湿地中细菌及真菌数量均达到最大值,当种植芦苇及水葱时湿地细菌量更多。
In order to study the ability of reeds, scallions, bananas and sylvestris to transfer nutrients, the horizontal subsurface flow constructed wetland was used to treat domestic wastewater. The effluent COD, BOD, ammonia nitrogen and total nitrogen were measured in four seasons. The results of total phosphorus showed that: The treatment of domestic wastewater by horizontal subsurface flow constructed wetland is better, the effluent quality can reach the secondary standard of comprehensive wastewater discharge, the effect of reed on ammonia nitrogen removal is better, and the removal effect of valerian on COD and BOD is better. Well, the effect of banana on total nitrogen removal is better.the species and quantity of microorganisms in the wetland decrease gradually with the direction of water flow, and the number of bacteria and fungi in the wetlands of four plants reaches the maximum at the temperature of 15℃～20℃. When planting reeds and water onions, the amount of bacteria in the wetlands is greater.
In order to study the ability of reeds, scallions, bananas and sylvestris to transfer nutrients, the horizontal subsurface flow constructed wetland was used to treat domestic wastewater. The effluent COD, BOD, ammonia nitrogen and total nitrogen were measured in four seasons. The results of total phosphorus showed that: The treatment of domestic wastewater by horizontal subsurface flow constructed wetland is better, the effluent quality can reach the secondary standard of comprehensive wastewater discharge, the effect of reed on ammonia nitrogen removal is better, and the removal effect of valerian on COD and BOD is better. Well, the effect of banana on total nitrogen removal is better.the species and quantity of microorganisms in the wetland decrease gradually with the direction of water flow, and the number of bacteria and fungi in the wetlands of four plants reaches the maximum at the temperature of 15℃～20℃. When planting reeds and water onions, the amount of bacteria in the wetlands is greater.
引文
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[2]柳俊,陈永华,李科林,等.农村混合污水人工湿地处理模式与效果分析[J].环境污染与防治,2019,41(2):231-236.
[3]刘利,陈阳,宋有涛.我国人工湿地脱氮现状及研究进展可视化分析[J].辽宁大学学报,2018,45(4):358-365.
[4]陆健刚,钟燮,吴海真,等.GIS在B-IBI法评价鄱阳湖水生态系统健康性中的应用[J].环境工程学报,2016,10(3):1553-1559.
[5]朱金格,张晓姣,刘鑫,等.生态沟-湿地系统对农田排水氮磷的去除效应[J].农业环境科学学报,2019,38(2):405-411.
[6]张燕,刘雪兰,伏春燕,等.进水C/N对表面流-水平流人工湿地氮和COD去除效果的影响[J].水土保持学报,2018,32(6):294-301.
[7]袁子勇,许玉凤.人工湿地技术在污水净化中的应用研究[J].环境科学与管理,2018,43(3):110-115.
[8]丁海静,丁彦礼,游俊杰,等.基质结构对人工湿地运行性能的影响分析[J].水处理技术,2018(12):91-95.
[9]翟俊,戴元贵,马宏璞.锰矿石人工湿地中去除双氯芬酸的机理研究[J].中国环境科学,2018,38(11):58-62.
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