电絮凝净化含聚污水影响因素研究

目的为保障油田正常安全生产,促进油田含聚污水的循环利用。方法采用电絮凝技术单因素研究方法开展净化含聚污水的静态实验研究,探讨外加电流密度、极板间距、初始pH及聚合物浓度等因素对净化效果的影响规律。结果当初始pH为7.0,电流密度为4.0 m A/m2,极板间距为1.0 cm,电解16 min时,综合处理效果最佳。此时,含油量与浊度去除率分别为98.85%,99.93%,处理每克油平均消耗为0.0494 g的Al,处理每立方米含聚污水的能耗为0.2895 k Wh。污水中的聚合物浓度越小,净化效果越好。结论中性处理,极板间距为1.0 cm,外加电流密度为4.0 m A/m2,通电16 min是最佳处理条件。

Experiment of Polymer-contained Wastewater by Electrocoagulation

Objective To guarantee normal safety production of oil field and promote cyclic utilization of polymer-contained wastewater in oil field. Methods The electrocoagulation single factor analysis method was used to carry out the experimental study on the purification of poly-contaminated wastewater to investigated effects of different current density, plate spacing, initial pH, polymer concentration and other factors on the purification effect. Results When the initial PH was 7.0, the current density was 4 mA/cm2, and the electrode spacing was 1 cm, the comprehensive treatment effect was the best after 16min of electrolysis. Under these operating conditions, the oil removal rate and turbidity removal rate were 98.85% and 99.93%. The consumption of aluminum and energy were 0.0494 g/g and 0.2895 kWh/m3 respectively. In addition, the smaller the polymer concentration, the better the purification effect. Conclusion For neutral treatment, the treatment condition is the best when the electrode spacing, current density and electrolysis duration are 1.0 cm, 4.0 mA/m2 and 16 min.