摘要
通过静态实验对比研究了模拟含酚废水在二维电解槽和三维电解槽中的电化学氧化过程,考察了支持电解质浓度、电解电压以及初始pH值对对苯二酚去除效果的影响,比较了两种电解系统对含酚废水的处理效果。结果表明:对苯二酚去除率随电解质浓度增大而先增大后减小;随施加电压的增加,对苯二酚的去除率有所提高;接近中性的条件下有利于对苯二酚的去除。三维电极系统可在较低的支持电解质浓度条件下操作,更有利于含酚废水的有效处理。在pH=7的条件下,对苯二酚去除率可达90%以上。
By the static experiment,we comparatively studied the electrochemical oxidation process of simulated wastewater containing phenol （300 mg/L） in the two-dimensional cell and the three-dimensional cell. Experimental inspected how various factors of supporting electrolyte concentration, electrolysis voltage, and the initial pH value influence the effect of the removal of hydroquinone. The treatment effect of wastewater containing phenol by various methods was contrasted. The results of the ex- periment clearly indicated that with the increase in the concentration of electrolytes the removal of hydroquinone increased first and then decreased;with the increase of voltage applied the removal of hydroquinone improved;at a higher voltage, the removal rate was decline; close to neutral conditions was conductive to the removal of hydroquinone. The removal of hydroquinone is higher in the three-dimensional cell,at lower concentration of supporting electrolyte, the wastewater containing phenol could be treated by three-dimensional system,and these are more favorable for treatment of wastewater containing phenol. When the pH is about 7. 0, the largest removal rate of hydroquinone could be exceeding 90%.
出处
《化工科技》
CAS
2010年第2期5-8,共4页
Science & Technology in Chemical Industry
基金
建设部科技攻关项目(2008-K7-25)
关键词
电化学氧化
含酚废水
对苯二酚
处理
Electrochemical oxidation
Phenolic waste water
Hydroquinone
Processing
