二硫代氨基甲酸盐的除油机理及pH值对其除油性能的影响  

Oil Removing Mechanism of Dithiocarbamate and Effect of pH of Wastewater

作　　者：葛际江[1] 宋昭峥[1] 张贵才[1] 赵福麟[1] 冷强[2] 

机构地区：[1]石油大学石油工程学院,东营257061 [2]胜利油田桩西采油厂

出　　处：《应用化学》2002年第12期1170-1173,共4页Chinese Journal of Applied Chemistry

摘　　要：研究了二硫代氨基甲酸盐的除油机理 ,并通过分析絮体的生成条件以及絮体的带电性 ,探讨了污水的 p H值对二硫代氨基甲酸盐除油性能的影响。实验发现 ,二硫代氨基甲酸盐可通过与污水中的 Fe2 +反应生成絮体 ,这些絮体在搅拌过程中卷扫污水中的分散油滴并快速上浮或下沉起到除油的作用。二硫代氨基甲酸盐的除油效果随污水的 p H值不同而差异较大。在 p H值为 4～ 8的范围内 ,除油效果较好 ,除油率 >90 %。当p H>8或 <4时 ,除油效果明显下降。The mechanism of removing oil from wastewater by dithiocarbamate was studied and the effect of pH value of wastewater on the oil removing was discussed based on the floculation occurred in the course of oil removing. The floc that removes oil efficiently appeared produced in situ by the reaction of dithiocarbamate with ferrous ions in wastewater. The oil removing efficiency differed greatly with the pH of wastewater. With pH value ranged in 4~8 the oil removing efficiency was above 90%, beyond this range the oil removing results worsen apparently.

关 键 词：除油机理 PH值 除油性能 二硫代氨基甲酸盐 油田 污水处理 

分 类 号：X741.03[环境科学与工程—环境工程]