نتایج جستجو برای: slow sand filter
تعداد نتایج: 257614 فیلتر نتایج به سال:
Laboratory column studies were conducted at the Utah Water Research Laboratory, Logan, Utah, to evaluate reovirus removal from drinking water supplies by slow-rate sand filtration (SSF). Columns, constructed to simulate a full-scale SSF field operation, were inoculated with reovirus at ca. 1,000-times-greater concentrations than those typically found in domestic sewage. Reovirus removal and ina...
Backgrounds and Objectives: Improvement of water quality standards and inability of mono layer filters in producing such quality caused researchers attended to multi layer filters. Due to specific characteristics of anthracite and leca can improve removal of organic materials and Surface over flow rate. The aim of this research was evaluation performance of dual media filters (anthracite/leca) ...
The need for clean water has risen exponentially over the globe. Millions of people are affected daily by a lack of clean water, especially women and children, as much of their day is dedicated to collecting water. The global water crisis not only has severe medical implications, but social, political, and economic consequences as well. The Institute of Catholic Bioethics at Saint Joseph's Univ...
• For the first time, a biomass approach was used to investigate backwashed SSF. Biomass accumulated differently in scraped and slow sand filters. 16S rRNA sequencing indicated variation of bacterial community between better preserved different trophic levels after backwash. The filtrate good quality BFS ScSF despite their differences. assessed as new for evaluating filters (BSF). Slow filtrati...
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