保险粉废水预处理工艺研究
The Research of the Pretreatment of Sodium Hydrosulfite Wastewater
丁滢 1张威1
作者信息
- 1. 维尔利环保科技集团股份有限公司(江苏常州 213000)
- 折叠
摘要
以精馏作为预处理方式,探究对保险粉生产过程废水中化学需氧量(COD)的去除效果,同时,将得到的高浓度采出液回用于生产.结果表明:与原水相比,不同回流比下的采出液COD都明显升高,表明通过气液传质,轻组分转移至采出液中并得到提浓,但随着回流比的增大,采出液的COD增加幅度降低.实验中最佳的回流比为 4∶1.
Abstract
In this paper,distillation is chosen as the pretreatment process to investigate the removal effect of chemical oxygen demand(COD)in the wastewater produced during the sodium hydrosulfite production.Meanwhile,the extracted liquid with high organic concentration will be reused for production.The results showed that the COD of the extracted liq-uid increased significantly under different reflux ratios,indicating that the light components in the wastewater were trans-ferred into the extracted liquid and concentrated through gas-liquid mass transfer.However,the COD increase of the ex-tracted liquid decreased with the increasing reflux ration.The optimal reflux ratio in this research was 4∶1.
关键词
保险粉废水/精馏预处理/资源回收Key words
Sodium hydrosulfite wastewater/Distillation pretreatment/Resource recycling引用本文复制引用
出版年
2024
NETL
NSTL
万方数据