响应曲面法优化旋流分离处理含油废水

Hydrocyclone Optimization by Response Surface Methodology for Oily Wastewater Treatment

旋流分离器对含油废水的油-水分离有较好的效果,但其分离效率受到结构尺寸的影响。目前定量计算大多采用经验公式进行设计,并且大部分经验公式是基于固-液分离的旋流器,对于油-水分离并不能达到最优的分离效果。通过响应曲面法(RSM)中的中心组合实验设计对旋流器进行设计计算,以20%含油率水样,旋流器公称直径75mm为例,优化结果为入口直径为14mm,溢流口直径为18.94mm,底流口直径为8mm,处理效率为93.13%,优于广泛采用的Arterburn和Rietema经验公式设计的处理效率。

Hydrocyclones can separate oil from water efficiently.However,the separation efficiency is affected by structure style and size.Quantitative calculation is mostly designed by empirical formula,and most of the empirical formulas are based on the solid-liquid hydrocyclone separator,which cannot achieve the optimal separation effectfor oil-water separation.In this paper,the center composite design of response surface methodology was used to calculate cyclone parameters.Taking the water sample containing 20%oil and cyclone nominal diameter of 75 mm as an example,the optimization results were as follows:the inlet diameter of 14 mm,overflow diameter of 18.94 mm and underflow diameter of 8mm.The optimized efficiency was93.13%,which was better than the efficiencies according to Arterburn and Rietema empirical formula.