EACD技术处理煤矿酸性废水硫酸根的研究
Study on treatment of sulfate radical in acid wastewater from coal mine by EACD technology
于明丽 1张伦秋 1田葳 1杨朝粉 1刘欢 1田岳尧 1杜胜男 2宋洋3
作者信息
- 1. 辽宁石油化工大学土木工程学院,辽宁抚顺 113000
- 2. 宁波工程学院,浙江宁波 315211
- 3. 辽宁省实誉环保科技有限公司,辽宁沈阳 110000
- 折叠
摘要
采用·OH清除剂优化接地极雾化电晕放电(EACD)技术处理煤矿酸性废水,利用响应面法研究了放电电压、放电时间和硫酸根与苯酚的浓度比对硫酸根降解率的影响.结果表明,各因素显著性顺序为:硫酸根与苯酚的浓度比＞放电电压＞放电时间,放电电压、硫酸根与苯酚的浓度比的交互作用对硫酸根去除率影响显著.优化条件为:放电电压12 kV、放电时间66 min、硫酸根与苯酚的浓度比0.9时,对应的硫酸根去除率为76.55％,与预测值仅有0.55％的误差.实验结果与模型数值高度吻合,证实了该回归模型的准确性.
Abstract
Acidic wastewater from coal mine was treated by optimized grounding electrode atomization corona discharge(EACD)technology with·OH scavenger.The effects of discharge voltage,discharge time and concentration ratio of sulfate to phenol on the degradation rate of sulfate were studied by using the response surface method.The result showed that the order of significance of each factor was as fol-lows:concentration ratio of sulfate to phenol＞discharge voltage＞discharge time,and the interaction of discharge voltage and concentration ratio of sulfate to phenol had a significant effect on the removal rate of sulfate.The optimized conditions were:the discharge voltage of 12 kV,the discharge time of 66 min,the concentration ratio of sulfate to phenol of 0.9,corresponding the sulfate removal rate was 76.55％and the error compared with the predicted value was only 0.55％.The experimental results are highly consistent with the model values,which confirms the accuracy of the regression model.
关键词
接地极雾化电晕放电(EACD)/硫酸根/煤矿酸性废水/·OH清除剂/响应面法Key words
grounding electrode atomization corona discharge(EACD)/sulfate radical/acid wastewater from coal mine/·OH scavenger/response surface method引用本文复制引用
基金项目
2020年辽宁省教育厅科学研究经费项目(L2020027)
出版年
2024
NETL
NSTL
万方数据