电场协同强化人工湿地处理重金属的研究进展

Research Progress of Electric Field Synergistic Enhancement of Constructed Wetland for Heavy Metal Treatment

人工湿地由于经济、环保、有效的优点,在污水处理领域得到了广泛关注。其中植物、基质在人工湿地中发挥重要作用,面对日益复杂的重金属污染问题,人工湿地中引入电场促进其去除重金属的技术得以展开研究。本文介绍了植物吸收重金属的生理机制及不同湿地植物和基质组合对水体重金属的去除效果,并且针对性地开展了植物对重金属的特异性吸附对比。深入分析了电场对植物富集重金属的机理和促进作用及不同电场配置方式对人工湿地处理重金属废水的影响,为后续电场引入人工湿地技术的研究和应用提供了参考。

Constructed wetlands have received extensive attention in the field of sewage treatment due to their economical,environmentally friendly and effective advantages.Among them,plants and substrates play an important role in constructed wetlands.Facing the increasingly complex problem of heavy metal pollution,the introduction of electric fields into constructed wetlands to promote the removal of heavy metals has been carried out.In this paper,the physiological mechanism of plants absorbing heavy metals and the removal effects of different wetland plants and substrate combinations on heavy metals in water were introduced,and the specific adsorption comparison of heavy metals by plants was carried out in a targeted manner.The mechanism and promotion effect of electric field on the enrichment of heavy metals in plants and the influence of different electric field configurations on the treatment of heavy metal water in constructed wetlands were deeply analyzed,which provided a reference for the subsequent research and application of electric field introduction into constructed wetland technology.