电解氧化法处理采油废水

采用电解氧化法,以析氯阳极与铁阴极为工作电极,在电流密度为15 mA/cm2,电解时间为80 min,水板比为0.10 cm2/cm3,废水呈弱碱性,极板间距为10 mm的条件下,对pH值为7.0,CODCr为476.0 mg/L,NH3-N为53.6 mg/L的采油废水进行电解处理。结果表明,CODCr去除率为73.2%,NH3-N去除率为98.5%,能够达到GB 8978—1996二级排放标准的要求。

Treatment of oil production wastewater by electrolytic oxidation method

Oil production wastewater with pH value 7.0,the concentration of CODCr and NH3-N 476.0mg/L and 53.6mg/L respectively was treated by electrolytic oxidation method,under the conditions of depositing chlorine anode and iron cathode as work electrodes,current density 15mA/cm2,electrolysis time 80min,ratio of electrode plate surface area to water volume 0.1cm2/cm3,alkalescent of pH value and electrodes distance 10mm.The results showed that removal rate of CODCr and NH3-N could reach 73.2% and 98.5% respectively.The water quality of oil production wastewater disposed by electrolysis could meet the requirement of the national second class discharge standard.