Immobilized Technology of Dominant Indicator Bacteria in Activated Sludge
Taking the activated sludge of industrial wastewater treated by a Chinese pharmaceutical company as the research object,the project team obtained a dominant indicator bacterium(Actinomycete)through separation and purification technology,and the immobilized embedding parameters are established by single factor and orthogonal tests.The results show that the best proportion of calcium alginate gel method is sodium alginate 2.0%and calcium chloride 4.0%(mass ratio);the optimal ratio is sodium alginate 5.5%,gelatin 1.3%and calcium chloride 0.55%(mass ratio)when sodium alginate and gelatin synergistic fixation method is selected.The purification effect of immobilized particles prepared by calcium alginate gel method is better.and the COD value of wastewater decreased from 26.47 mg/L to 10.59 mg/L after 72 h of operation.
NETL
NSTL
万方数据
维普
