trickling filter
A bed of rocks covered with a microbial film that aerobically degrades organic waste during secondary sewage treatment.

Microbiology. . 2009.

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  • Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… …   Wikipedia

  • trickling filter — biologinis filtras statusas T sritis ekologija ir aplinkotyra apibrėžtis Biologinio nuotekų valymo įrenginio filtravimo laikmuo iš skaldos, keramzito, plastiko granulių. Nuotekas valo laikmens paviršiuje susidariusi biologinė plėvelė iš aerobinių …   Ekologijos terminų aiškinamasis žodynas

  • trickling filter — noun : an artificial bed of broken rock or other coarse material through which sewage or industrial wastes trickle after being sprayed on intermittently so that organic matter present is oxidized and removed by biological growths formed on the… …   Useful english dictionary

  • filter-bottom block — noun : a hollow vitrified salt glazed clay block used in the floors of trickling filters in sewage treatment plants …   Useful english dictionary

  • biological filter — biologinis filtras statusas T sritis ekologija ir aplinkotyra apibrėžtis Biologinio nuotekų valymo įrenginio filtravimo laikmuo iš skaldos, keramzito, plastiko granulių. Nuotekas valo laikmens paviršiuje susidariusi biologinė plėvelė iš aerobinių …   Ekologijos terminų aiškinamasis žodynas

  • percoling filter — biologinis filtras statusas T sritis ekologija ir aplinkotyra apibrėžtis Biologinio nuotekų valymo įrenginio filtravimo laikmuo iš skaldos, keramzito, plastiko granulių. Nuotekas valo laikmens paviršiuje susidariusi biologinė plėvelė iš aerobinių …   Ekologijos terminų aiškinamasis žodynas

  • percolating filter — noun : trickling filter …   Useful english dictionary

  • Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… …   Wikipedia

  • environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

  • Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… …   Wikipedia

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