Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, UK.
Departamento de Química Agrícola, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Environ Pollut. 2014 Oct;193:79-87. doi: 10.1016/j.envpol.2014.06.016. Epub 2014 Jul 9.
With the aim of investigating the effects of carbonaceous sorbent amendment on plant health and end point contaminant bioavailability, plant experiments were set up to grow maize (Zea mays) in soil contaminated with polycyclic aromatic hydrocarbons (PAHs) and metals. Maize and pine derived biochars, as well as a commercial grade activated carbon, were used as amendments. Plant growth characteristics, such as chlorophyll content and shoot to root biomass, improved with sorbent amendment to varying extents and contaminant uptake to shoots was consistently reduced in amended soils. By further defining the conditions in which sorbent amended soils successfully reduce contaminant bioavailability and improve plant growth, this work will inform field scale remediation efforts.
为了研究碳质吸附剂改良对植物健康和终点污染物生物利用度的影响，开展了植物实验，即在受多环芳烃（PAHs）和金属污染的土壤中种植玉米（Zea mays）。使用玉米和松树衍生的生物炭以及商业级活性炭作为改良剂。受吸附剂改良的土壤中，植物生长特性（如叶绿素含量和地上部与根生物量比）在不同程度上得到了改善，并且污染物在地上部的吸收也得到了一致的降低。通过进一步确定吸附剂改良土壤成功降低污染物生物利用度和改善植物生长的条件，这项工作将为现场规模的修复工作提供信息。
