trickling filter

(redirected from Trickling filters)

trickling filter

[′trik·liŋ ‚fil·tər]
(civil engineering)
A bed of broken rock or other coarse aggregate onto which sewage or industrial waste is sprayed intermittently and allowed to trickle through, leaving organic matter on the surface of the rocks, where it is oxidized and removed by biological growths.
References in periodicals archive ?
Secondary treatment technologies include the basic activated sludge process, the variants of pond and constructed wetland systems, trickling filters and other forms of treatment which use biological activity to break down organic matter
Conventional treatment of dairy wastewater by aerobic processes includes activated sludge, trickling filters, aerated lagoons, or a combination of these (7).
In contrast to conventional treatment technology such as trickling filters, sand filters and other media filter.
Evaluation of the nitrification rates of microbead and trickling filters in an intensive recirculating tilapia production facility.
At WwTW A, secondary treatment consisted of trickling filters and bubble-diffused air-activated sludge treatment.
Fisher said he has ordered four more HydroDoc units for the plant's 170-foot, diameter, 14-foot deep trickling filters.
Our findings show that for hydrogen sulfide odor control at wastewater-treatment plants, you can convert chemical scrubbers to biological trickling filters and still have the same treatment capacity much cheaper and safer.
Researchers later used down-flow trickling filters and adapted upflow fluidized sand beds (FSBs) to warm water fish culture conditions.
In wastewater treatment facilities, trickling filters and bed reactors help biofilms neutralize many chemicals found in sewage.
Conventional processes such as activated sludge, trickling filters, and coagulation tanks (in the treatment of water and wastewater) demand heavy machinery that necessitates the use of skilled personnel for operation and maintenance.
electricity), water courses, as well as degradation of the sludge drying beds, for fermentation, pavements, grid installation, grit chamber, trickling filters, voorbezinktank, sedimentation tank, effluent and SWA consort, effluent venturi .
Achieving cost savings with nitrifying trickling filter is dependent upon the ability to obtain high nitrification rates, and minimizing the size of the required process units, therefore the unique characteristics of trickling filters that distinguish this from other processes must be recognized and accounted for in design.