Efficiency of wood cellulose filtration

Wood cellulose is widely used as a filter aid. Different filtration conditions greatly affect the filtration performance of the wood cellulose filter cake layer. In this paper，the influence of filtration pressure on retention efficiency and average filtration rate was studied with the single-factor method. The influence of viscosity of suspension，concentration of wood cellulose，amount of wood cellulose and water content on retention efficiency and average filtration rate was studied with orthogonal experiment. Experimental results showed that wood cellulose filter aid was a moderately compressible material and its filtration performance changed with filtration condition. The best filtration condition was determined by analyzing experimental results. The results provide a reference for small-scale industrial trials of filtration with wood cellulose.