Topic
Trickling filter
About: Trickling filter is a research topic. Over the lifetime, 1098 publications have been published within this topic receiving 20219 citations.
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TL;DR: In this paper, the authors compared the load removal efficiency of constructed wetlands and unplanted pilot gravel filters for tertiary treatment of effluent from a conventional wastewater treatment plant (trickling filter) in Southern Italy (Sicily).
69 citations
TL;DR: In this article, it is argued that initial removal and digestion of the particulate organics, in combination with treatment of the soluble organics by means of a trickling filter with thick biofilm, might constitute an optimal way of maximizing anaerobic electron flux, resulting in an overall lower final sludge production and yet still achieving a high quality, low nutrient effluent.
69 citations
TL;DR: Denitrification of sanitary landfill leachate with biogas as a sole carbon source was found to be possible and high concentrations of oxygen in the liquid medium and low oxygen concentrations in the aeration gas inhibited denitrification.
68 citations
TL;DR: In this article, a derivatization electron capture/gas chromatography/mass spectrometry method was employed to determine environmental levels of LAS, DATS, and their biodegradation intermediates at low micrograms per liter (ppb) concentrations.
Abstract: Concentrations of linear alkylbenzene sulfonates (LAS), dialkyltetralin sulfonates (DATS), and their biodegradation intermediates are reported for the influents and effluents of 10 U.S. domestic wastewater treatment plants as well as upstream and downstream river waters and sediments. Three types of treatment facilities in 10 U.S. states were sampled and analyzed. Removals were calculated based on initial concentrations of LAS and DATS. A derivatization electron capture/gas chromatography/mass spectrometry method was employed. Its increased sensitivity and selectivity permitted the determination of environmental levels of LAS, DATS, and their biodegradation intermediates at low micrograms per liter (ppb) concentrations. The removal from four activated sludge and five trickling filter wastewater treatment facilities averaged 99.5% and 82.9% for LAS and 99.1% and 97.3% for LAS intermediates, respectively, for the activated sludge and trickling filter facilities. In the same plants, percent removals for DATS averaged 95% and 63.2% and DATS intermediates 59.1% and 58.7%, respectively. The removals obtained by a rotating biological contactor were similar to those observed in the activated sludge wastewater treatment facilities.
67 citations
TL;DR: Analysis of the data obtained has shown that the model sufficiently explains and predicts the ammonium removal rate of a wide range of commercial trickling filters, and is used to optimise performance of existing biofilters in terms of ammonium levels achieved and pumping costs.
67 citations