Abstract
This Paenibacillus polymyxa (P1) was fermented under the specific conditions and extracted the microbial flocculant (MBFP1) whose main components were polysaccharide. Compounded the MBFP1 and modified sepiolite fibers according to a certain mass ratio to make the microbial flocculant/sepiolite fibers water treatment materials (MBFSF), then analyzed their microstructure by SEM,and studied on the pollutants removal capacity in domestic sewage.The results show that,COD removal rate in domestic sewage can reach 97.2%,when pH=7.2 and the addition quantity of MBFSF is 15mg/L,in which the composite mass ratio of MBFP1 and sepiolite fibers is 5:2.Therefore,MBFSF has many advantages such as little dosage,high flocculating rate,fast settling velocity and no pollution,etc.
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