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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Performance of laboratory-scale constructed wetlands coupled with micro-electric field for heavy metal-contaminating wastewater treatment
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Performance of laboratory-scale constructed wetlands coupled with micro-electric field for heavy metal-contaminating wastewater treatment

机译：实验室规模的人工湿地结合微电场处理重金属污染废水的性能

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摘要

This study reports the performance of laboratory-scale constructed wetlands coupled with micro-electric field (CWMEF) planted cannas (Canna generalis) for heavy metal-contaminating wastewater treatment. The CWMEF had a better performance for heavy metal (HM) removal from wastewater than did the ordinary constructed wetlands (CWs). Owing to the stimulation of the suitable voltage and electrical exposure time, cannas may grew better and in fact assimilated more metallic ions in CWMEF than in CWs. The environmental conditions in CWMEF, such as the higher pH by electrolysis of water, the presence of aluminum ions by anodizing of aluminum, caused chemical precipitation, physical adsorption and flocculation of metallic ions.
机译：这项研究报告了实验室规模的人工湿地结合微电场（CWMEF）种植的美人蕉（Canna generalis）在处理重金属污染废水方面的性能。与普通人工湿地（CW）相比，CWMEF在去除废水中的重金属（HM）方面具有更好的性能。由于适当电压和电暴露时间的刺激，CWMEF中的美人鼻可能比CW中的生长更好，并且实际上吸收了更多的金属离子。 CWMEF中的环境条件，例如通过电解产生更高的pH值，通过对铝进行阳极氧化而产生铝离子，导致化学沉淀，物理吸附和金属离子絮凝。

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