银粉生产废水处理最佳工况研究  

Study on the Best Working Condition of Silver Powder Wastewater Treatment

作　　者：刘志明 Liu Zhiming(Shanghai Huizhi Environmental Protection Technology Co.,Ltd.,Shanghai 201600,China)

机构地区：[1]上海惠志环保科技有限公司,上海201600

出　　处：《山东化工》2024年第18期285-289,共5页Shandong Chemical Industry

摘　　要：借助铁碳芬顿反应机理,通过响应曲面法探究超细银粉银浆生化后废水处理最佳工况点。首先,通过三个单因素实验发现,铁碳比表面积、曝气时长和双氧水浓度对超细银粉银浆生化后废水的COD去除效率均有一定的影响,但并非单一的线性关系。基于此,本研究采用响应曲面法耦合出最佳工况点:铁碳比表面积(A)=4.89 m^(2)/g,曝气时长(B)=267.52 min,双氧水质量分数(C)=30.56%,最优工况下对生化后出水COD去除率的预测值为97.3196%。最后,在响应曲面法的最优工况下展开对预测的生化后废水的COD去除率进行验证,最佳工况下铁碳芬顿反应对超细银粉银浆生化后废水处理的COD去除率为96.73%,与响应曲面法平均净化效率的预测值(97.3196%)误差仅为0.610%,表明响应曲面法对最佳工况下超细银粉银浆生化后废水COD去除率的预测是值得信赖的,这也为后续其他催化剂最佳工况的耦合提供了理论支持。Leveraging the mechanism of the Fenton reaction with iron and carbon,the response surface methodology was employed to investigate the optimal conditions for the treatment of wastewater following the bio-chemical process of ultrafine silver powder paste.Initially,through three single-factor experiments,it was discovered that the iron-to-carbon surface area ratio,aeration duration,and hydrogen peroxide concentration all have a certain impact on the COD removal efficiency of the wastewater after the bio-chemical process of ultrafine silver powder paste,but the relationship is not purely linear.Based on this,the current study used the response surface methodology to couple and determine the optimal conditions:iron-to-carbon surface area ratio(A)=4.89 m^(2)/g,aeration duration(B)=267.52 min,hydrogen peroxide concentration(C)=30.56%,with a predicted COD removal rate of 97.3196%under the optimal conditions.Finally,the predicted COD removal rate of the bio-chemical wastewater under the optimal conditions determined by the response surface methodology was verified.The COD removal rate achieved by the Fenton reaction under the optimal conditions for the treatment of wastewater following the bio-chemical process of ultrafine silver powder paste was 96.73%,with an error of only 0.610%compared to the average purification efficiency predicted by the response surface methodology(97.3196%).This indicates that the prediction of the COD removal rate for the wastewater following the bio-chemical process of ultrafine silver powder paste under the optimal conditions by the response surface methodology is reliable,providing theoretical support for the coupling of optimal conditions for other catalysts in subsequent studies.

关 键 词：铁碳芬顿反应 单因子实验 最佳工况 响应曲面法 

分 类 号：X703[环境科学与工程—环境工程]