摘要
采用铁碳微电解—电催化氧化组合工艺对农药生产废水进行处理,考察了进水pH、铁碳填料加入量、曝气速率和反应时间对铁碳微电解效果的影响。实验结果表明:在进水pH 3.0、铁碳填料加入量1.5 kg/L、曝气速率3 L/min、铁碳微电解反应时间10.0 h、电压6 V、电流3 A、电流密度0.22 A/cm^(2)、电催化氧化时间2.0 h的条件下,农药生产废水经铁碳微电解—电催化氧化处理后,COD由19700 mg/L降低至3800 mg/L,去除率可达80.71%;农药生产废水经铁碳微电解—电催化氧化工艺处理后,出水COD显著降低,为后续深度处理创造了条件。
A combined process of iron-carbon micro-electrolysis(ICME)and electro-catalysis(EC)was designed for the treatment of actual pesticide production wastewater.The experimental results indicate that the optimal reaction conditions are as follows:influent pH of 3.0,iron-carbon filler dosage of 1.5 kg/L,aeration rate of 3 L/min,iron-carbon micro-electrolysis time of 10.0 h,voltage of 6 V,current of 3 A,current density of 0.22 A/cm^(2),and electrocatalytic oxidation time of 2.0 h.Under these conditions,the COD of the pesticide wastewater is reduced from an initial range of 19700 mg/L to 3800 mg/L,achieving a COD removal efficiency of 80.71%.The significant decrease in effluent COD demonstrates the effectiveness of the combined ICME and EC process,thereby providing favorable conditions for further advanced treatment.
作者
胡皓淳
JOEL Balagizi Asipingwe
李风亭
HU Haochun;JOEL Balagizi Asipingwe;LI Fengting(College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)
出处
《化工环保》
北大核心
2025年第5期631-635,I0004,共6页
Environmental Protection of Chemical Industry
关键词
农药生产废水
铁碳微电解
电催化
降解
pesticide production wastewater
iron-carbon micro-electrolysis
electro-catalysis
degradation
