摘要
针对目前含油污水处理量多、处理难度大且单一传统处理方式不达标的问题,采用气浮-旋流耦合处理技术,设计开发了一种新型的多管式微旋流气浮除油装置,并通过射流器与分布盘的组合优化微气泡发生过程,利用射流气浮技术进行除油实验,研究了各参数对气浮装置除油效果的影响规律。实验结果表明:多管式微旋流气浮装置对含油污水有较好的处理效果,除油效率随着气液比和进水流量的增大,呈现先上升后下降的趋势,而且对污水含油浓度的变化有较好的适应性。在不加破乳剂的前提下,当pH值为6~8、进水含油浓度为200 mg/L、气液比为15%、进水流量为1.5 m^(3)/h时,出口含油浓度为39.4 mg/L,除油率达到80.3%。
Given the great difficulty of treating the large amount of oily wastewater and the deficiencies of the single and traditional treatment method,a new type of multi-tube micro cyclone air floatation oil removal device was designed by using air flotation and cyclone coupling treatment technology.Up optimization of bubble generation by the combination of jet and distributing plate,the oil removal experiment was carried out by using the jet air flotation technology,and the influence of each parameter on the oil removal effect of the air flotation device was studied.The results showed that the multi-tube micro cyclone air floatation oil removal device had a good effect on oily wastewater treatment.With the increase of gas-liquid ratio and influent flow rate,the oil removal efficiency increased first and then decreased,and the device could adapt the change of oil concentration in a certain range.The oil removal efficiency reached 80.3%under the conditions of pH value 6-8,the oil concentration in the influent 200 mg/L,the gas-liquid ratio 15%,and the influent flow rate 1.5 m^(3)/h.
作者
于璐
王增丽
王振波
李强
YU Lu;WANG Zengli;WANG Zhenbo;LI Qiang(College of New Energy,China University of Petroleum(East China),Qingdao 266580,China)
出处
《化学反应工程与工艺》
CAS
2022年第2期154-161,共8页
Chemical Reaction Engineering and Technology
关键词
气浮旋流
射流溶气
除油效率
air floatation cyclone
jet dissolved gas
oil removal efficiency
