摘要
采用电絮凝法对高浓度切削液废水进行破乳实验,考察实验条件对破乳效果影响。实验结果表明:在阳极-阴极采用铝板-316不锈钢、电流密度20. 0 m A/cm^2、极板间距4. 0 cm、反应时间70. 0 min和pH=8. 0条件下,破乳效果最好,CODCr去除率可以达到97. 4%;电絮凝破乳主次因素依次为:电流密度>极板间距>pH>反应时间。采用电絮凝方法可以快速高效的达到破乳效果实现油水分离,同时去除高浓度切削液废水中的COD_(Cr),降低了后续深度处理的工艺难度,具有较好的应用推广前景。
The high - concentration cutting fluid wastewater was subjected to the demulsification experiment by electric flocculation method and the influence of experimental conditions on the demulsification effect was investigated. The experimental results showed that the demulsification effect was the best and the removal rate of CODCr can reach 97.4%, when anode-cathode material was aluminum plate-316 stainless steel, current density was 20.0 mA/ cm2, plate spacing was 4.0 cm, reaction time was 70.0 min and pH was 8.0.The order of the main influential factors of electrocoagulation and demulsification were as follows: current density, plate spacing, pH, reaction time.The electrocoagulation method can quickly and efficiently achieve the demulsification effect to achieve oil-water separation and remove CODCr in the high-concentration cutting fluid wastewater at the same time, which reduced the process difficulty of subsequent deep treatment and had a good application and promotion prospect.
作者
吴娜娜
谭有晨
李锦卫
刘强
姜成春
WU Na-na;TAN You-chen;LI Jin-wei;LIU Qiang;JIANG Cheng-chun(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Liaoning Shenyang 110168;Engineering Technology Development Center of Urban Water Recycling,Shenzhen Polytechnic,Guangdong Shenzhen 518055,China)
出处
《广州化工》
CAS
2019年第4期26-30,共5页
GuangZhou Chemical Industry
基金
国家自然科学基金项目--超声/多相-Fenton水处理体系中介孔金属氧化物的微界面作用机制研(51778374)
辽宁省博士科研启动基金项目(201501070)
辽宁省教育厅科学研究一般项目(L2015451)
沈阳建筑大学科学研究项目(2017023)
关键词
切削液废水
破乳
CODCR去除率
电絮凝
正交实验
cutting fluid wastewater
demulsification
the removal rate of CODCr
electrocoagulation
orthogonal experiment
