Shivpad Engineers Pvt. Ltd,
#10, Vivekananda Street,
Balaji Nagar, Ambattur,
Chennai – 600 053.
Tamilnadu, INDIA.
Ph: +9144 2658 1277 | 2658 1288
 
Trickling Filters

Shiv pad TRICKLING FILTERS find extensive use in aerobic attached-growth biological treatment process to remove organic matter found in wastewater, especially in Sewage Treatment Plant.

These units consist of a bed of highly permeable media to which microorganisms are attached and through which waste water is percolated or trickled. A population of microorganisms attached to the filter media degrades the organic material present in the waste water.

The filter media has high surface area per unit of volume, is low in cost, has high durability and does not clog easily.  The filter media usually consists of sized rocks varying in size from 50 to 100 mm.  The depth of the media varies with each particulars design but usually ranges from 1 M to 2.5 M and averages around 1.8M. Alternately, filter media can be in plastic as well.

 
CONVENTIONAL ROCK-FILLED TYPE TRICKLING FILTER


Shivpad   TRICKLING FILTER   is a self propelled  turn-table unit.  It   is  available with  either two or  four arms construction. The entire  distributor  well and distributor arms  assembly  rotates  on a frictionless free-rotating  cast  iron  turn table.

50M DIA TRICKLING FILTER IN OPERATION
INTERNAL ARRANGEMENT OF TURNTABLE BASE



UNDER DRAIN ARRANGEMENT
 


The under drains system is important both as a collection unit and as a porous structure through which air can circulate. The collected liquid is passed to a settling tank where the solids are separated from the treated waste water. In practice, a portion of the liquid collected in the under drain system or the settled effluent is recycled, usually to dilute strong influent waste water and to bring the filter effluent back in contact  with the biological population for further treatment.
 
CENTRAL DISTRIBUTION WELL OF TRICKLING FILTER
 
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