نتایج جستجو برای: water filtration

تعداد نتایج: 583838  

Journal: :Journal of the Royal Sanitary Institute 1905

2017
Sangwoo Shin Orest Shardt Patrick B Warren Howard A Stone

Water purification technologies such as microfiltration/ultrafiltration and reverse osmosis utilize porous membranes to remove suspended particles and solutes. These membranes, however, cause many drawbacks such as a high pumping cost and a need for periodic replacement due to fouling. Here we show an alternative membraneless method for separating suspended particles by exposing the colloidal s...

2014
Michael S. H. Boutilier Jongho Lee Valerie Chambers Varsha Venkatesh Rohit Karnik

Effective point-of-use devices for providing safe drinking water are urgently needed to reduce the global burden of waterborne disease. Here we show that plant xylem from the sapwood of coniferous trees--a readily available, inexpensive, biodegradable, and disposable material--can remove bacteria from water by simple pressure-driven filtration. Approximately 3 cm(3) of sapwood can filter water ...

Journal: :Nature Communications 2017

Journal: :JAMA: The Journal of the American Medical Association 1907

Journal: :Limnology and Oceanography 1989

ژورنال: سلامت و محیط زیست 2019

Background and Objective: Human adenoviruses transmitted from contaminated water are one of the major pathogens that has been introduced as one of the most important new qualitative water indicators due to their resistance against the purification processes. The main objective of this study was to evaluate efficiency of human adenovirus removal in different units of Isfahan Water Treatment Plan...

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