草甘膦废水处理

Treatment of Glyphosate-producing Wastewater

草甘膦生产母液含大量甲醛和CODCr,难处理排放。本文主要讨论了纳滤浓缩回收母液中大部分的草甘膦,然后以生石灰处理纳滤透过液、浓缩液的草甘膦母液处理方法。采用(纳滤回收草甘膦+生石灰)处理废液的工艺可以得到较好的处理效果和草甘膦回收率。

The glyphosate mother liquid contained the large amounts of formaldehyde and CODCr, so it was difficult to disintegrate and drain off. The nanofiltration process was applied to recycled most of glyphosate from the glyphosate mother liquid. Then the nanofiltration concentrated solution reacted with calcium oxide. By this（nanofiltration recycling glyphosate ＋ calcium oxide） treatment process, the wastewater treatment effect and the recovery rate of glyphosate got ideal result.