脉冲电絮凝法处理餐饮废水的研究  

Study on Pulsed Current Electrocoagulation for Restaurant Wastewater Treatment

作　　者：林辉[1] 甘复兴[1] 田芳[1] 

机构地区：[1]武汉大学资源与环境科学学院,湖北武汉430072

出　　处：《武汉大学学报（理学版）》2003年第6期720-724,共5页Journal of Wuhan University:Natural Science Edition

摘　　要：利用脉冲电源电解的方式消除了铝阳极絮凝过程中的钝化现象.电解电流半衰期、极化后开路电位、废水的化学需氧量(CODCr)和油的去除率等实验结果表明,脉冲电絮凝可消除铝阳极的钝化,提高电解电流效率;在相同的去除率时,脉冲电絮凝比直流电絮凝节能30%;在选定的实验条件下脉冲电絮凝处理餐饮废水的优化参数值为:电流密度6.8A/m2,脉冲频率0.15Hz,占空比0.7.Apply the pulse power electrolysis to eliminate aluminum anodic passive films in the process of electrocoagulation . Electrolysis current half life, open circuit potential after polarization, removal efficiency for COD_(Cr) and oil were measured and compared between direct current and pulsed current electrocoagulation. The experimental results show that pulsed current electrocoagulation can eliminate the anodic passive films effectively and improve current efficiency. To the same removal efficiency of COD_(Cr) and oil, pulsed current electrocoagulation can reduce energy consumption about 30% in contrast of direct current electrocoagulation. The optimum parameters of plused current electrocoagulation under the experimental conditions were confirmed as 6.8 A/m^(2) for current density, 0.15 Hz for frequency, 0.7 for duty cycle, respectively.

关 键 词：脉冲电絮凝 餐饮废水 污水处理 铝阳极钝化 电解电流斗衰期 

分 类 号：X703.1[环境科学与工程—环境工程]