منابع مشابه
Potable water from wastewater and beyond
The Holy Grail of water technology is a full recycle of all wastewater as potable water (or water of a similar quality) after treatment by enhanced separation. Traditional wastewater treatment systems, mainly based on activated sludge treatment, have a high water loss through the sludge produced, generate a large volume of secondary waste and have insufficient quality of the product water. Newe...
متن کاملRemoval of trace metal contaminants from potable water by electrocoagulation
This study investigated the effects of four operational and environmental variables on the removal of trace metal contaminants from drinking water by electrocoagulation (EC). Removal efficiencies for five metals (arsenic, cadmium, chromium, lead and nickel) were compared under varying combinations of electrode material, post-treatment, water composition and pH. Iron electrodes out-performed alu...
متن کاملDiversity and Virulence Profile of Aeromonas From Potable Water
Aeromonas spp. are autochthonous in the aquatic ecosystem and some of them has been increasingly found, in patients with various diseases like enteritis, wound infection and even septicemia in amphibians, reptiles, frog, fish and in patients with impaired immunity. There are different virulence factors like aerolysin, hemolysins, cytotoxins, enterotoxins, proteolytic activity, lipolytic activit...
متن کاملModelling and control of potable water chlorination.
The Umgeni Water Wiggins water treatment plant feeds the southern areas of Durban in South Africa and has a maximum treatment capacity of about 350 Ml/d. Two interconnected reservoirs at this facility hold treated water before it enters the distribution network. Because of the variable demand, the reservoir levels and residence times undergo considerable variation. This has a strong influence o...
متن کاملIncidence of coliphage in potable water supplies.
Samples of drinking water from different sources in greater Cairo, Egypt, and bottled drinking water were tested for total coliform, fecal coliform, and coliphage populations. Of the 147 samples tested, 4 samples were positive for both total coliforms and coliphage, 65 samples were negative for total coliforms, fecal coliforms, and coliphage, and 78 samples were positive for coliphage and negat...
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ژورنال
عنوان ژورنال: Nature
سال: 1942
ISSN: 0028-0836,1476-4687
DOI: 10.1038/149357a0