Flotation Experimental Study Of Porous Material Distribution Plate On Wastewater Treatment

Separation efficiency in three-phase separator can be effected by space limitation of mobile skid block device.In order to increase the separation efficiency of the three-phase separator,a porous material distributor plate flotation device is considered to be added at the end of the three-phase separator.In order to investigate the effect of flotation device for the processing of oily wastewater,a set of flotation experimental device with porous material distributor plate is designed proportionally combined with engineering practice and a simulation of field devices,and a series of experimental researches are conducted to testify treatment effect.First of all,the experimental study of the porous material distribution board are conducted,obtain the corresponding microplate parameters;Second,conduct the treatment of oily wastewater flotation experimental study without adding agents conditions,through orthogonal experiment to determine the optimal experiment program,through the single factor experiment,determine the different oil content,into the fluid handling capacity,pressure drop,air time and other factors;and finally,add a test agent on the separation efficiency,Finally,the obtained experimental data to explore the feasibility of BP neural network to predict the oil removal efficiency;Then,add a test agent on the separation efficiency;Finally,using the experimental data obtained to explore the feasibility of BP neural network to predict the oil removal efficiency.Experimental results show that the average maximum pore size of the plate 11.74?m,microplate opening rate of nearly 32%,permeability 130L/min·cm2·kPa;Flotation board area as a key factor affecting the efficiency of the flotation oil inlet oil concentration and pressure drop inside and outside the bubble generator as a secondary factor,flotation time and the inlet flow rate of general factors;Univariate highest separation efficiency corresponding optimal parameters:inlet oil concentration 480.14mg/L,microplate model ZSW1,microplate area of 0.28m2,flotation time 20 min,both inside and outside the bubble generator pressure drop 14.71 kPa,capacity 400L/h;Demulsifier and flocculant addition can be good for the oil-water separation.On this basis,explore the BP neural network to predict the oil removal efficiency is feasible,to provide guidance for the practical application of experimental projects.