草甘膦废水预处理工艺研究

Study on the Pretreatment Technology of Glyphosate Wastewater

使用Fenton试剂及氯化钙溶液联合处理草甘膦废水。探讨了Fenton试剂加入量、钙液加入量、溶液p H、反应时间等因素对处理效果的影响。实验结果表明,在最佳工艺条件下,每100ml废水使用25m LFenton试剂、15ml钙液(560g/L),废水中COD去除率为82.5%,总磷去除率为96.3%。沉淀干燥后可使用硫酸回收其中的磷。

Treating the glyphosate wastewater by Fenton reagent and calcium chloride solution. Some factors affecting the results such as quantity of Fenton reagent and calcium chloride solution,p H vale of the solution,reaction time had been studied by a series of experiments. The results showed that under the optimized conditions each 100 m L wastewater was treated with 25 m L Fenton reagent and 15 m L calcium chloride solution,in this condition,the removal rate of COD or phosphorus was 82. 5% and96. 3%. Sulfuric acid can be used to recover the phosphorus after the precipitation was dried.