Go Jerwin Lawrence C, Madrazo Cynthia F, Orbecido Aileen H, de Castro Ma Ellenita G, Deocaris Custer C, Belo Lawrence P
Department of Chemical Engineering, Gokongwei College of Engineering, De La Salle University, 2401 Taft Avenue, Manila, 1004, Philippines.
Forest Biological Sciences, College of Forestry and Natural Resources, University of the Philippines Los Baños, Philippines.
Heliyon. 2021 Feb 12;7(2):e06208. doi: 10.1016/j.heliyon.2021.e06208. eCollection 2021 Feb.
Copper is the third most utilized metal and is a versatile resource with multiple beneficial uses, but it may also become toxic to aquatic life in excess amount. Thus, there is a need to develop methods to reduce the copper contamination in the environment, particularly in bodies of water. Phytoremediation using may offer an environment-benign and potentially effective method for copper removal though its effectiveness may take several years to materialize for this technology to become cost-effective. By growing in synthesized contaminated water and analyzing the change in the copper content of the substrate via atomic absorption spectrophotometry, the removal was found to be optimal at 20 ppm Cu and pH 5. The rate of removal was found to have an order of 2.71 and a kinetic constant of 0.0013 ppm day. With this, it may be possible to estimate the treatment length of phytoremediation given an initial level of copper contamination and a target concentration.
铜是第三大被广泛使用的金属，是一种具有多种有益用途的通用资源，但过量的铜对水生生物可能也具有毒性。因此，有必要开发减少环境中铜污染的方法，特别是在水体中。使用[植物名称未给出]进行植物修复可能提供一种环境友好且潜在有效的铜去除方法，不过要使该技术具有成本效益，其有效性可能需要数年才能显现。通过在合成污染水中种植[植物名称未给出]并通过原子吸收分光光度法分析基质中铜含量的变化，发现去除效果在铜含量为20 ppm且pH值为5时最佳。去除速率的量级为2.71，动力学常数为0.0013 ppm/天。据此，给定初始铜污染水平和目标浓度，有可能估算植物修复的处理时长。
