摘要
[目的]草铵膦含镁废水中含有丰富的镁、磷等资源,直接作为废水进行处理难度大,且容易产生二次污染。探索其资源化利用方法,可以从根本上解决草铵膦含镁废水的出路。[方法]根据草铵膦含镁废水的成分和性质,采用"回收镁源-精馏-节能浓缩-固液分离"的工艺,使废水得到了有效处理。[结果]在最优工艺条件下,镁源的回收率达99.9%以上,六水合磷酸铵镁的纯度达96.0%以上,焦磷酸钠粗品的含量达90.0%以上,每处理1 t废水可产生240.35元的效益。[结论]该技术使资源得到了充分利用,彻底解决了草铵膦含镁废水的出路。
[Aims] Glufosinate-ammonium wastewater containing magnesium contains abundant magnesium and phosphorus resources. Exploration Of resource utilization methods can fundamentally solve the problem caused by glufosinate-ammonium wastewater. [Methods] The ＂recycling magnesium resources-distillation-concentration with energy saving and solid-liquid sepration＂ process was used to deal with the wastewater according to the compositions and properties of glufosinate-ammonium wastewater containing magnesium. [Results] Under the optimal conditions, the recovery rate of magnesium resources in the wastewater was more than 99.9%, the purities of magnesium ammonium phosphate hexahydrate and crude sodium pyrophosphate were more than 96.0 and 90.0%, respectively, and the benefits of treatment of 1 ton wastewater was 240.35 yuan. [Conclusions] This technique make full use of the resource of wastewater, and thoroughly solve the problem of way out of glufosinate-ammonium wastewater containing magnesium.
出处
《农药》
CAS
CSCD
北大核心
2016年第4期261-264,共4页
Agrochemicals
关键词
草铵膦
含镁废水
六水合磷酸铵镁
资源化
glufosinate-ammonium
wastewater containing magnesium
magnesium ammonium phosphate hexahydrate
resourcezation
