Genc Ayten, Bakirci Busra
Department of Environmental Engineering, Bulent Ecevit University, Zonguldak, Turkey E-mail:
Water Sci Technol. 2015;71(8):1196-202. doi: 10.2166/wst.2015.092.
The effect of pulsed voltage application on energy consumption during electrocoagulation was investigated. Three voltage profiles having the same arithmetic average with respect to time were applied to the electrodes. The specific energy consumption for these profiles were evaluated and analyzed together with oil removal efficiencies. The effects of applied voltages, electrode materials, electrode configurations, and pH on oil removal efficiency were determined. Electrocoagulation experiments were performed by using synthetic and real wastewater samples. The pulsed voltages saved energy during the electrocoagulation process. In continuous operation, energy saving was as high as 48%. Aluminum electrodes used for the treatment of emulsified oils resulted in higher oil removal efficiencies in comparison with stainless steel and iron electrodes. When the electrodes gap was less than 1 cm, higher oil removal efficiencies were obtained. The highest oil removal efficiencies were 95% and 35% for the batch and continuous operating modes, respectively.
研究了脉冲电压施加对电凝聚过程中能量消耗的影响。将相对于时间具有相同算术平均值的三种电压分布施加到电极上。对这些分布的比能量消耗进行了评估，并与除油效率一起进行了分析。确定了施加电压、电极材料、电极配置和pH值对除油效率的影响。使用合成废水和实际废水样本进行了电凝聚实验。脉冲电压在电凝聚过程中节省了能量。在连续运行中，节能高达48%。与不锈钢和铁电极相比，用于处理乳化油的铝电极具有更高的除油效率。当电极间距小于1厘米时，可获得更高的除油效率。间歇运行模式和连续运行模式下的最高除油效率分别为95%和35%。
