Behavior of schmutzdecke with varied filtration rates of slow sand filter to remove total coliforms
نویسندگان
چکیده
منابع مشابه
total coliforms and turbidity removal of water in the continuous sand filter
the continuous filter is a kind of sand filter, which will operate without any interruptions for backwashing and also it accepts high-suspended solid levels in feed stream. fouled sand is continuously removed from the filter bed, washed and recycled back without interruption with filtration process. various samples of water with certain amounts of turbidity enter through a feed pipe and being d...
متن کاملAerosol Filtration Using Quartz Sand Filter
The cement industry is the major source of cement dust which contains heavy metals like nickel, cobalt, lead, chromium, arsenic and hazardous substances like dioxins and furans. Exposure to these substances can cause health problems to human, animals and vegetation. A continuous pilot scale quartz sand filter was constructed and uses to study the effect of important design parameters (temperatu...
متن کاملThe Rôle of Vital Layer (or Schmutzdecke) in Slow Sand Bacteriological Purification
The upper layer formed on the surface of theslow sand filter does not appear to play the most important part in bacteriological purification. The sand filters at Pulta, with a capacity of about 99 million gallons daily, offer an excellent opportunity to study such actions, as it sometimes becomes necessary to rake a running filter when it tends to choke, which rapidly diminishes the rate of fil...
متن کاملThe role of aluminum in slow sand filtration.
Engineering enhancement of slow sand filtration has been an enigma in large part because the mechanisms responsible for particle removal have not been well characterized. The presumed role of biological processes in the filter ripening process nearly precluded the possibility of enhancing filter performance since interventions to enhance biological activity would have required decreasing the qu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Heliyon
سال: 2020
ISSN: 2405-8440
DOI: 10.1016/j.heliyon.2020.e03736