Engineering topics
Publications and source records attributed to Nyman, May Devan.
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Abstract not provided.
This project (LDRD 130749) addressed the fundamentals of capturing water-borne pathogens on a surface, and their destruction by photocatalytic processes. Microbiological pathogens, viruses and bacteria in particular, are of great concern in municipal and at-the-source water supplies, particularly as these sources become scarcer and more polluted with increasing population coupled with increasing industrialization of developing countries. Filtration (over coagulation for instance) remains a method of choice for water treatment for both municipal plants and at-the source or home treatment, given the ease of use, rapid treatment rate, and re-usability filter media (thus reduced cost). However, size-exclusion filtration is challenging for small pathogens such as viruses. Therefore filtration by chemical affinity is an attractive option. Self-cleaning membranes or surfaces are also particularly attractive for water treatment technologies, in that biofouling is a considerable challenge. Furthermore, the ability to clean filtration media extends its use and lifetime.
Abstract not provided.