摘要
采用以铁碳微电解法为主的工艺处理硬丁腈橡胶装置排放的拉开粉废水,在1m3/h的废水处理装置上进行了中试,考察了微电解反应器的气水比(体积比)、铁碳比(质量比)、pH值和反应器的运行周期及反冲洗对污染物去除效果的影响。结果表明,铁碳微电解反应(气水比为1.2:1、铁碳比为2:1、pH值为3.0～4.0)和催化氧化反应后,废水中的拉开粉平均质量浓度由767mg/L降至123mg/L,总悬浮物平均质量浓度由376mg/L降至48mg/L,化学需氧量(重铬酸钾法)由2862mg/L降至1490mg/L,达到该废水处理装置的出水水质指标。
The nekal-containing wastewater from nitrile rubber unit was treated by ferric-carbon micro-electrolysis combined other processs, the pilot test was conducted in a reactor with wastewter treatment unit scale of 1 m3/h, and the effects of air/wastewater（ volume ratio）, Fe/C（ mass ratio）, pH value, operation period and backwash on the removal of contaminants were investigated. The results showed that the average mass concentration of nekal decreased from 767 mg/L to 123 mg/L, average mass concentration of total suspended solids decreased from 376 mg/L to 48 mg/L, chemical oxygen demand （potassium dichromate method ） decreased from 2 862 mg/L to 1 490 mg/L at air/wastewater（ volume ratio） of 1.2： 1, Fe/C（mass ratio） 2： I, and pH value of 3.0 -4. 0 in the ferric-carbon micro-electrolysis reaction combined catalytic oxidation. The results met the demand of effluent quality of the wastewater treatment unit.
出处
《合成橡胶工业》
CAS
CSCD
2009年第5期361-364,共4页
China Synthetic Rubber Industry
基金
中国石油天然气股份有限公司炼油与化工分公司资助项目(0704A18-06)
关键词
拉开粉
废水
铁碳微电解
催化氧化
中试
nekal
wastewater
ferric-carbon micro-electrolysis
catalytic oxidation
pilot test
