Water quality is related to human health. Microbial contamination not only seriously threatens water system but also increase the water treatment coast. Microbial growth and biofilm formation in water distribution system are main concern. This work develops a new durable anti-corrosion and anti-biofouling coating for water pipes and pumps. The new coating is composed of epoxy matrix and antimicrobial material (i.e., polymer-based colloidal suspension). Studies show that the new coating exhibits contact-killing and anti-adhesion activities to effectively prevent biofilm formation on different substrates including metal, ceramic, glass and plastics. The coated surface can maintain better than 2 log reduction (99 %) for both <i>E. coli</i> and <i>P. aeruginosa</i>, and avoid surface colonization even in the presence of scaling and fouling agents. Accelerated ageing test result indicates the coating can be stably operated under flow rate of 5 m/s for 30 years. Moreover, the new coating also obviously decreases friction loss of water pipes, which benefits energy efficiency of water distribution system.

New technology for controlling biofilm formation in water distribution system

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.