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Tween80-enhanced phytoremediation of polychlorinated biphenyls-contaminated soil

机译：Tween80-增强多氯联苯污染土壤的植物修复

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A pot experiment was conducted to study the absorption capacity of alfalfa under the enhancement of Tween80, and the physiological and biochemical responses of alfalfa to polychlorinated biphenyls (PCBs)-contaminated soil. It was found that the alfafa had a very limited PCBs absorption capacity., The absorption capacity of alfalfa root was larger than that of its shoot, and the addition of Tween80 can promote the absorption of PCBs. The alfalfa biomass and chlorophyll content was mainly inhibited by PCBs rather than Tween80. Alfalfa root activity was higher when treated with Tween80. The toxic effect of PCBs on the alfalfa root may be decreased by Tween80 solubilizing PCBs to decrease PCBs residue in contaminated soil. Soil organic matter content and micro-organism population may be increased by Tween80 providing an extra carbon source, thereby improving the absorption capacity and physiological and biochemical indicators of alfalfa. The experimental results provide some new possibilities in reducing risks associated with PCBs.
机译：进行了锅实验，以研究苜蓿的吸收能力在增强吐温下，以及苜蓿对多氯联苯（PCB） - 酰胺土壤的生理生化反应。结果发现，苜蓿具有非常有限的PCBS吸收能力。，苜蓿根的吸收能力大于其芽的吸收能力，并加入Tween80可以促进PCB的吸收。苜蓿生物质和叶绿素含量主要受PCB而不是Tween80抑制。用Tween80治疗时，苜蓿根活率更高。通过Tween80溶解PCB可以减少污染土壤中的PCB残留物，降低PCB对苜蓿根茎对苜蓿根的毒性作用。通过Tween80提供额外碳源的土壤有机质含量和微生物群体可以提高苜蓿的吸收能力和生理生化指标。实验结果为减少与PCB相关的风险提供了一些新的可能性。

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