当前位置: 首页 > 文章 > 不同湿地植物对三江平原农田退水重金属的去除效果 湿地科学与管理 2019 (4) 43-47
Position: Home > Articles > Effects of Heavy Metal Removal from Farmland Wastewater in Sanjiang Plain by Different Wetland Plants Wetland Science & Management 2019 (4) 43-47

不同湿地植物对三江平原农田退水重金属的去除效果

作  者:
赵丹慧;王清波;李琦;蔡体久;邸雪颖;孙晓新
单  位:
东北林业大学林学院;黑龙江三江国家级自然保护区管理局;黑龙江三江平原湿地生态系统国家定位观测研究站
关键词:
湿地植物;农田退水;重金属;去除率
摘  要:
选取黑龙江三江国家级自然保护区4种常见的湿地植物臌囊苔草Carex schmidtii、芦苇Phragmites australis、水葱Scirpus validus、香蒲Typha orientalis,设置15种不同的人工湿地,研究不同处理对当地农田退水Cr、Pb、Cu、Zn的去除效果。结果表明:随着时间的延长,水体中Cr、Pb、Cu、Zn的含量都在降低。实验结束时,15种人工湿地对Cr、Pb、Cu、Zn的平均累积去除率分别为91.82%、54.33%、12.92%、72.61%,对Cr、Pb、Cu、Zn的累积去除率最高的人工湿地分别为:臌囊苔草+芦苇+水葱(95.45%)、臌囊苔草+芦苇+香蒲(68.39%)、臌囊苔草+芦苇+水葱+香蒲(22.22%)、臌囊苔草+香蒲(81.63%)。Cr、Cu的平均累积去除率与植物数量呈线性关系,即植物为1~4种时,湿地植物种类组成数量越多,Cr、Cu的平均累积去除率越高。
译  名:
Effects of Heavy Metal Removal from Farmland Wastewater in Sanjiang Plain by Different Wetland Plants
作  者:
ZHAO Dan-Hui;WANG Qing-Bo;LI Qi;CAI Ti-Jiu;DI Xue-Ying;SUN Xiao-Xin;School of Forestry, Northeast Forestry University;Heilongjiang Sanjiang Plain Wetland Ecosystem Research Station;Heilongjiang Sanjiang National Natural Reserve Administration;
关键词:
Wetland plants;;Agricultural discharge;;Heavy metal;;Removal rate
摘  要:
We select four species, Carex schmidtii, Phragmites australis, Scirpus validus, Typha orientalis, native to Sanjiang Plain to study their effectiveness of Cr, Pb, Cu and Zn removal from agricultural discharge. The heavy metals in the water column continue to decline over the experiment period. Upon conclusion of the experiment, the overall removal rates from agriculture discharge were 91.82%, 54.33%, 12.92% and 72.61% for Cr, Pb, Cu and Zn, respectively. The artificial wetlands with the highest cumulative removal rate of Cr, Pb, Cu and Zn were Carex schmidtii+Phragmitesaustralis+Sci rpusValidus(95.45%), Carex schmidtii+ Phragmites australis+ Typha orientalis(68.39%), Carex schmidtii+Phragmites australis+Scirpus validus+Typha orientalis(22.22%) and Carex schmidtii+ Typha orientalis(81.63%), respectively. There were linear relationships between the overall removal rates of Cr and Cu and the number of plants in the artificial wetlands. More species led to higher overall removal rates of Cr and Cu, when the number of plant species is 1~4.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊