direct contact membrane distillation (dcmd) which emerges as an alternative separation technology can effectively perform a colloidal separation process under thermal driven force. dcmd is capable of extracting pure water from aqueous solutions containing non-volatile nanoparticles through the hydrophobic microporous membrane when a vapour pressure difference was established across the membrane...

escherichia coli o157:h7 is found in cattle farms and can live in the intestine of healthy cattle. mostcases of human illnesses including nonbloody diarrhea, hemorrhagic colitis and hemolytic uremic syndromecan be traced, either directly or indirectly, to cattle. one strategy for reducing the risk of enterohemorrhagicescherichia coli (ehec) infections in human is to reduce the prevalence of inf...