摘要
为了环保高效地处理DBP模拟废水,本研究采用三维电极耦合超声反应体系,对DBP模拟废水进行氧化降解,通过测定COD去除率,分析最佳条件下的处理效能。通过单因素实验分析得出最佳条件为:板极间距5cm,电压15V,PAC投加量30g,硫酸钠投加量12g,超声频率为15kHz。此外,分别对单独三维电极、单独超声、三维电极耦合超声三种反应体系处理DBP废水的COD去除率进行分析,发现三维电极耦合超声反应体系的COD去除率最高(52.71%),其次为单独三维电极反应体系(50.17%),单独超声反应体系的COD去除率最低(15.65%)。通过反应动力学分析,单独三维电极与单独超声反应体系符合一级反应动力模型,其表观反应速率常数分别为K_(三维)=5.75×10^(-3)s^(-1)、K_(单超声)=1.43×10^(-3)s^(-1)。三维电极耦合超声反应体系符合二级反应动力模型,其表观反应速率常数K_(耦合)=1.37×10^(-5)Lmol^(-1)s^(-1)。研究结果证明,三维电极耦合超声技术在DBP废水较单独使用三维电极氧化处理或超声处理具有显著优势。
In order to treat DBP simulated wastewater in an environmentally friendly and efficient manner,this study used a three-dimensional electrode coupled ultrasound reaction system to oxidize and degrade DBP simulated wastewater.By measuring the COD removal rate,the treatment efficiency under optimal conditions was analyzed.The optimal conditions obtained through single factor experimental analysis are:electrode spacing of 5cm,voltage of 15V,PAC dosage of 30g,sodium sulfate dosage of 12g,and ultrasonic frequency of 15kHz.In addition,the COD removal rates of DBP wastewater were analyzed using three reaction systems:single three-dimensional electrode,single ultrasound,and three-dimensional electrode coupled ultrasound.It was found that the COD removal rate of the three-dimensional electrode coupled ultrasound reaction system was the highest(52.71%),followed by the single three-dimensional electrode reaction system(50.17%),and the COD removal rate of the single ultrasound reaction system was the lowest(15.65%).Through reaction kinetics analysis,the single three-dimensional electrode and the single ultrasonic reaction system conform to the first-order reaction kinetics model,with apparent reaction rate constants of K three-dimensional=5.75×10^(-3)s^(-1)and K single ultrasonic=1.43×10^(-3)s^(-1),respectively.The three-dimensional electrode coupled ultrasound reaction system conforms to the second-order reaction kinetics model,with an apparent reaction rate constant K coupling of 1.37×10^(-5)Lmol^(-1)s^(-1).The research results demonstrate that the three-dimensional electrode coupled ultrasound technology has significant advantages over using three-dimensional electrode oxidation treatment or ultrasound treatment alone in DBP wastewater treatment.
作者
齐源颉
任怡霖
许洋
魏晓燕
Yuanjie Qi;Yilin Ren;Yang Xu;Xiaoyan Wei(School of Civil Engineering and Water Resources,Qinghai University,Xining,Qinghai 810016;Qinghai Province Key Laboratory of Building Energy saving Materials and Engineering Safety,Xining,Qinghai 810016)
出处
《生态学与可持续发展研究》
2025年第3期16-20,共5页
Research on Ecology and Sustainable Development
基金
青海大学2025年土木工程创新基金立项项目。
