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发明公开
CN109647878A 一种利用约束优化原理确定植物修复螯合剂剂量的方法 有权

一种利用约束优化原理确定植物修复螯合剂剂量的方法
摘要：
本发明涉及一种利用约束优化原理确定植物修复螯合剂剂量的方法。以螯合剂的施加剂量对植物的生长或对植物修复的景观效果无抑制作用为约束条件、以植物富集238U、232Th和226Ra的量为目标函数和以使目标函数达到最大为优化目标。采用盆栽试验，以博落回作为修复植物，采用可被生物降解的螯合剂CA和EDDS来强化博落回对238U、232Th和226Ra的富集，以施加的CA和EDDS的剂量对博落回的生长无抑制作用为约束条件，确定CA和EDDS的剂量范围。本方法不仅满足了植物修复的景观效果和植物的正常生长，还提高了植物修复的效率，适用于放射性核素或重金属污染土壤的修复。
摘要（英）：

The invention relates to a method for determining the dosage of a phytoremediation chelating agent by utilizing a constraint optimization principle. The constraint condition is that the application dose of chelating agent has no inhibition effect on the plant growth or the landscape effect of plant restoration, and the amount of the plant enrichment 238U, 232Th and 226Ra is taken as an objective function and the objective function maximization is taken as an optimization objective. Using potted plant experiment, using macleaya cordata as repair plant, using the biodegradable chelating agent CAand EDDS to enhance the enrichment of 238U, 232Th and 226Ra of macleaya cordata.The dosage range of CA and EDDS is determined according to the constraint condition that the dose of CA and EDDS had noinhibitory effect on the growth of macleaya cordata. The method not only meets the landscape effect of plant restoration and the normal growth of plants, but also improves the efficiency of plant restoration, and is suitable for the restoration of soil polluted by radionuclides or heavy metals.

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