نتایج جستجو برای: water filtration
تعداد نتایج: 583838 فیلتر نتایج به سال:
The fate of various emerging contaminants as well as priority pollutants from the European Union Water Framework directive was examined along a complex combination of natural and engineered processes used to produce drinking water downstream of a major metropolitan area. The sampling points examined comprised Seine river water downstream of the Paris area, water from a primary well after bank f...
This report provides results recorded from the application of a coalescing plate separator to grinding and lathe coolant filtration. Use of the filter and normal recommended practices in monitoring coolants significantly extended coolant life, increased the tool life of carbide inserts and grinding wheels an average of 25'10, and resulted in cleaner machines and coolant sumps. The use of deioni...
in this study the filtration rate of nitrogen and phosphorus components by swan mussel anodonta cygnea in a closed system was investigated. the system was built of a 100 liters main tank and 4 recipients of 2.5 liters each (one of these as control) and one tank for returning of water. three treatments of different concentrations of nitrogen (80, 100 and 200 mg/l) and of phosphorus (20, 40 and 6...
Micro- and nanosized plastics as persistent anthropogenic pollutants have attracted more attention in recent years. A source of nanoparticles is, for example, water-borne dispersion paint, which consists a variety different materials with potential adverse effects on living systems. Therefore, rising challenge becomes apparent to investigate remediation strategies environmental media. We addres...
Adrenal failure causes a complex disturbance of renal function and of sodium and water exchange. In the dog, as in man, the ability to conserve sodium is impaired (1, 2), there is a fall in glomerular filtration rate and renal blood flow (3-6), and diuresis from water ingestion is much delayed (7, 8). There have been many reports of the effects of corticosteroids on discrete renal functions suc...
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