Natural moderation of biofouling formation by exposure of bacteria to silver nanoparticles

摘要: Biofouling is the undesired deposition, of microorganisms and their extracellular polymeric substrates (EPS) on surfaces [Flemming, 2002]. Controlling of biofouling and its negative effects on process performance of water systems is a crucial operation challenge in all of the water sectors including pipes, water distribution systems, filtration processes, cooling facilities and power plants. Common treatments in use for prevent or removal of biofouling include the use of oxidative disinfectants, minimizing nutrients in the feed, altering surface materials to prevent the development of the biofouling, or clean-in place (CIP) technique to remove a mature biofouling. Limitations such as production of by-products, low effective against specific microorganisms and development of tolerance, damage to system materials and more, have given a rise to consider alternatives techniques. In this study a treatment technique based on …