Saberi Norshahida, Halmi Mohd Izuan Effendi, Zakaria Norazua, Ahmad Hamdani Muhammad Saiful, Khandaker Moneruzzaman, Yong Jean Wan Hong, Mahmud Khairil
Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), Seri Kembangan, Malaysia.
Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia (UPM), Seri Kembangan, Malaysia.
Int J Phytoremediation. 2025 Jul 4:1-9. doi: 10.1080/15226514.2025.2524567.
A study was conducted to investigate the synergistic effect of growing with the addition of bamboo biochar (BB) and ethylenediaminetetraacetic acid (EDTA) in reducing soil heavy metal(loid)s. Soils from the Chini watershed, a Man and Biosphere Reserve by UNESCO, which faces mining activities, were collected, analyzed, and used for a greenhouse experiment. The experiment was set up with five treatments by growing with BB and/or EDTA, a control, and blank (organic soil). demonstrated robust growth throughout the experiment, displaying no common phytotoxic symptoms when growing with the contaminated soil. Applying BB and EDTA gradually increased 50% of plant height and biomass and improved the uptake of heavy metal(loid)s: Fe:42%, As:62%, Pb:83%, Cr: 88%, and Al: 5%. This treatment also achieved the highest phytoextraction efficiency, with reductions of heavy metal(loid)s in the soil (up to 33%) compared to the control. Growing with BB and EDTA additions was a promising method in reducing soil heavy metal(loid)s, making it beneficial for restoration efforts at ex-mining sites, particularly at the Chini watershed in the future.
开展了一项研究，以调查添加竹炭（BB）和乙二胺四乙酸（EDTA）对降低土壤重金属（类金属）含量的协同效应。收集了来自受采矿活动影响的联合国教科文组织人与生物圈保护区芝尼流域的土壤，进行分析，并用于温室试验。该试验设置了五个处理组，分别是添加BB和/或EDTA种植、一个对照组以及空白组（有机土壤）。在整个试验过程中表现出强劲的生长态势，在受污染土壤中生长时未出现常见的植物毒性症状。施用BB和EDTA使植物高度和生物量逐渐增加了50%，并改善了重金属（类金属）的吸收：铁增加42%、砷增加62%、铅增加83%、铬增加88%、铝增加5%。该处理还实现了最高的植物提取效率，与对照组相比，土壤中重金属（类金属）含量降低了（高达33%）。添加BB和EDTA种植是一种很有前景的降低土壤重金属（类金属）含量的方法，对未来废弃矿区的修复工作，特别是芝尼流域的修复工作有益。
