NaCl-丙醇双水相体系分离富集草甘膦生产废水中草甘膦铵盐

利用草甘膦生产废水中接近饱和的NaC1与丙醇形成的双水相体系分离富集废水中部分残留的草甘膦铵盐,达到了资源循环利用和资源的高效回收.通过分析表面活性剂种类及用量,pH,丙醇质量分数和NaC1质量分数4个因素确定了最佳萃取条件.最后对该方案进行仿真验证,表明利用该方案对实际废水的处理比较理想,实现了90.7％的高回收率,完全符合工业化要求.

Separation and enrichment of glyphosate from glyphosate wastewater by NaCl/propanol aqueous two-phase system

By using aqueous two-phase system, which is formed by saturating NaC1 that is in the glyphosate wastewater and propanol as a system to separate and enrich part of residues ammonium glyphosae in the glyphosate wastewater, the problems of resources recycling and recovery can be solved efficiently. The best extraction conditions can be determined by analyzing four factors:kinds and amounts of surfactant, pH, the amount of NaCl and propanol. The last step is to verify the scheme by simulation. The result indicates that the treatment of wastewater is ideal under this scheme which meets the requirements for industrialization and realizes 90.7% high recovery rate.