THE FORMATION MECHANISM OF CARBON FIBER BIOFILM(II)— EFFECTS OF CARBON FIBER SURFACE CHARACTERISTIC ON ACTIVITY AND MULTIPLICATION OF MICROORGANISM

摘要

By means of contrast, using chemical analysis, surface morphology analysis and mensuration of activity of microorganism and so on techniques, the surface characteristic of activated carbon fiber and oxidized activated carbon fiber which were used as biofilm carrier and effects of surface characteristic of carrier on activity of biofilm and activity and multiplication of microorganism in active sludge were systematically studied and reported firstly. The emphasis is to see about the effects of surface functional groups of fiber、specific surface area、wettability and so on surface characteristic on activity of biofilm and activity and multiplication of microorganism in active sludge. Results show that :( 1) Improving characterization of adsorption of carbon fiber is beneficial to fix microorganism on the surface; increasing specific surface area of ACF is beneficial to enhance activity of microorganism on the surface. (2)In comparison with other organic polymer material, carbon fiber is able to promote microorganism to grow. (3)Increasing surface wettability and some acid functional groups of carbon fiber can help microorganism on the surface of carrier to grow.