46MM UV FILTER - WATERWAY CLEARWATER CARTRIDGE FILTER

BIOLOGICAL SAND FILTER. BIOLOGICAL SAND


Biological Sand Filter. Oil Filter Wholesale



Biological Sand Filter





biological sand filter






    sand filter
  • A filter used in water purification and consisting of layers of sand arranged with coarseness of texture increasing downward

  • The oldest and most basic filtration process, which generally uses two grades of sand (coarse and fine) for turbidity removal or as a first stage roughing filter or pre-filter in more complex processing systems.

  • Sand filters are used for water purification. There are three main types; # rapid (gravity) sand filters # upflow sand filters # slow sand filters

  • (sand filters) Devices that remove some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed.





    biological
  • Of or relating to biology or living organisms

  • (of a detergent or other cleaning product) Containing enzymes to assist the process of cleaning

  • (biologically) with respect to biology; "biologically related"

  • pertaining to biology or to life and living things

  • of parents and children; related by blood; "biological child"

  • Genetically related; related by blood











biological sand filter - Lifegard FB300




Lifegard FB300 Fluidized Bed Filter - Up to 300 gallons - 8 in. x 3 in. x 17 in.


Lifegard FB300 Fluidized Bed Filter - Up to 300 gallons - 8 in. x 3 in. x 17 in.



The Lifeguard Fluidized Bed Filter is a high capacity biological filter for fresh or saltwater aquariums. Beneficial bacteria attach to the media within the Fluidized Bed Filter creating a thin film around the sand grains. Water is pumped up through the unit lifting the sand into a Fluidized bed. The beneficial bacteria attach to the media and draw in oxygen, supplied by Rainbow's exclusive water fall device and other required nutrients from the passing water, converting ammonia and nitrites to relatively harmless nitrates. The sand grains are in continual free fall throughout the water resulting in an excellent transfer capability between the liquid and the bacterial film on the media. In addition the sand grains bump into each other frequently knocking off excess debris and providing a self-cleaning function which allows new areas for bacterial growth.The FB300 is rated for aquariums up to 300 gallons. It is most effective at low flow rates. Lower flow rates increase the contact time between the bacteria and the toxic ammonia and nitrite compounds that they utilize.










89% (8)





Calm Seas




Calm Seas





“It is an interesting biological fact that all of us have in our veins the exact same percentage of salt in our blood that exists in the ocean, and therefore, we have salt in our blood, in our sweat, in our tears. We are tied to the ocean. And when we go back to the sea … whether it is to sail or to watch it … we are going back from whence we came.”
~A life quote from John F Kennedy 14-9-62

Were all set to go to The Border Ranges National Park which is about 1 hours drive from where I live - from there you get a beautiful view over the valley in which I live. But unfortunately, because of all the rain we have had here lately, the park has been closed until further notice, so I thought I would post one from the first couple of mornings with the Big Stopper.

Nothing spectacular, I just liked the colours of the wet sand, the ocean and the clouds. Oh and no, calm seas it wasn't ;-)

Single Exposure
f11
ISO100
150 seconds
Lee's Big Stopper
Hitech 0.9ND Reverse Grad











Aquarium sand bed




Aquarium sand bed





This is below the sand level in our marine tank, up against the glass. Down here all kinds of industrious creatures work to consume the detritus that falls on the sand.

Worms, small crustacea, bacteria and algae are among the thousands of tiny and microscopic creatues that make up the biological filter for the tank.

Be sure to look at the full sized version to see the detail!









biological sand filter








biological sand filter




Advances in Slow Sand and Alternative Biological Filtration






Slow sand filtration is credited with being the first drinking water treatment process utilised to improve the quality of water in both modern Europe and the USA. Within the last 10 years, there has been a renaissance of interest in the potential use of enhanced processes of slow sand filtration throughout the world, especially for small and rural communities, and it continues to be the primary treatment process for many major European cities. The book deals with the latest research developments in slow sand and alternative biological filtration processes for drinking water treatment, including advances in the understanding of the fundamental mechanisms of the processes. In addition, progress in the techniques of operation and upgrading of the processes are described, with case studies from around the world. The principal themes of the book are: General overview; Removal of Natural Organic Matter (NOM), Biodegradable Organic Carbon (BOC) and Ozonation by-products; Biofilter media characteristics; Influence of process design variables and modifications; Modelling process performance; Pre-treatment applications; Operational experience and cleaning; and Upgrading treatment processes. The book also has an international perspective with case-studies from around the world.










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