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TC Marketing & Trading
TC Marketing & Trading JM0489575-U
Business
Hours
Monday - Saturday Closed
Sunday 9:00 AM - 3:30 PM
Open Closed

Sand Filter

Sand filters are used for water purification. There are three main types;
  • rapid (gravity) sand filters
  • upflow sand filters
  • slow sand filters
All three methods are used extensively in the water industry throughout the world. The first two require the use of flocculant chemicals to work effectively while slow sand filters can produce very high quality water free from pathogens, taste and odour without the need for chemical aids.

Uses in water treatment
All of these methods are used extensively in the water industry throughout the world. The first three in the list above require the use of flocculant chemicals to work effectively. Slow sand filters can produce very high quality water free from pathogens, taste and odour without the need for chemical aids.
 
Passing flocculated water through a rapid gravity sand filter strains out the floc and the particles trapped within it reducing numbers of bacteria and removing most of the solids. The medium of the filter is sand of varying grades. Where taste and odour may be a problem (organoleptic impacts), the sand filter may include a layer of activated carbon to remove such taste and odour.
 
Sand filters become clogged with floc after a period in use and they are then backwashed or pressure washed to remove the floc. This backwash water is run into settling tanks so that the floc can settle out and it is then disposed of as waste material. The supernatant water is then run back into the treatment process or disposed of as a waste-water stream. In some countries the sludge may be used as a soil conditioner. Inadequate filter maintenance has been the cause of occasional drinking water contamination.

Main Office

TC Marketing & Trading (JM0489575-U)
27, Jalan Indah 25/4, Taman Bukit Indah, 81200 Nusajaya, Johor, Malaysia.

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Website: http://www.tcmt.com.my

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