filter aid

filter aid

[′fil·tər ‚ād]
(materials)
An inert powder or granules such as diatomaceous earth, fly ash, or sand added to a solution that is to be filtered in order to form a porous bed on the filter and increase the rate and improve the quality of filtration.
References in periodicals archive ?
The company said the Q4 2016 net sales include acquisition of the activated carbon and filter aid business (the New Business) from a subsidiary of Arkema Group.
Upon completion of the required labor group consultations, Calgon Carbon expects that these certain Arkema subsidiaries will enter into a definitive asset and stock purchase agreement with Calgon Carbon for the purchase of the Activated Carbon and Filter Aid Business.
This porous filter aid prevents blockage of the Sartoclear Dynamics filters and the system maintains a constant ratio of biomass and filter aid.
A filter aid material is continuously added to the filter element to achieve the removal.
Tetratex is a surface filtration membrane, acting as a primary dust cake, requiring no dust cake to act as a filter aid, either before or during operation.
Features: filtration media now is available in 7- and 25-pound sizes for commercial use; still available in 9-ounce size for residential pools: biodegradable, nontoxic and environmentally safe, per maker; also can be used as a filter aid for cartridge and sand filters
DE is used as a filter aid by roughly 98 percent of the beer industry today," he says.
Ion(R) 1090 aluminum chlorohydrate coagulant and filter aid is a versatile water treatment chemical.
The reason is that waste haulers today are charging manufacturers a heavy premium for hauling the sludge - the media and the filter aid - all of which are still saturated with coolant.
The filter is operating reliably with an estimated savings in filter aid costs alone of $100,000/yr.
The use of filter aid on such solutions can be tried with surface type media.
Since the filters are automatically self-cleaning, no additional filter aid is required.