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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01 Jan 2010
1 citations
01 Feb 1987
TL;DR: In this paper, various treatment processes were evaluated for their applicability and effectiveness in treating leachate from hazardous waste land-disposal facilities, including activated sludge treatment, air stripping, carbon adsorption, flow equalization, granular media filtration, ion exchange, neutralization, oxidation/reduction, powdered activated carbon treatment, precipitation/flocculation, reverse osmosis, rotating biological contactor, sedimentation, sequencing batch reactor, steam stripping, trickling filter, ultrafiltration, and wet-air oxidation.
Abstract: Various treatment processes were evaluated for their applicability and effectiveness in treating leachate from hazardous waste land-disposal facilities. These technologies include activated sludge treatment, air stripping, carbon adsorption, flow equalization, granular media filtration, ion exchange, neutralization, oxidation/reduction, powdered activated carbon treatment, precipitation/flocculation, reverse osmosis, rotating biological contactor, sedimentation, sequencing batch reactor, steam stripping, trickling filter, ultrafiltration, and wet-air oxidation. Information is also given on the formation and composition of leachate, treatability of leachate constituents, and treatment process train selection.
1 citations
01 Jan 2007
TL;DR: Higher maximum elimination capacities were reached in the BTF while higher removal efficiencies were obtained at high loads with the CSTB, and both systems presented good stability against overloads.
Abstract: A laboratory scale fixed bed biotrickling filter (BTF) and a continuous stirred tank bioreactor (CSTB) have been studied and compared for the elimination of dichloromethane from waste gases. The DCM removal efficiency in the trickling filter was > 85% for inlet loads up to 25 g.m-3.h-1 and a maximal removal capacity of about 170 g.m-3.h-1 was achieved at a load of 350 g.m-3.h-1. The continuous stirred tank bioreactor showed removal efficiencies > 90% for inlet loads up to 120 g.m-3.h-1. At this load the maximal removal capacity of the system was reached, i.e. about 100 g.m-3.h-1. Thus, higher maximum elimination capacities were reached in the BTF while higher removal efficiencies were obtained at high loads with the CSTB. Both systems presented good stability against overloads.
1 citations
TL;DR: In this article, the authors used four synthetic media, pilot trickling filters constructed at the Madison Nine-Springs Sewage Treatment Plant, to investigate the effect of chemical precipitates of calcium apatite, aluminum phosphate and iron (III) phosphate trapped in the filter slime.
Abstract: Phosphorus removal from domestic wastewater was investigated using four synthetic media, pilot trickling filters constructed at the Madison Nine-Springs Sewage Treatment Plant. Phosphorus removal was not correlated with the parameters of the experimental design of: hydraulic load, depth, recirculation, or waste strength; however, greater phosphorus removals were measured than could be attributed to biological requirements for phosphorus. Analysis of filter slime composition and phosphorus release studies suggested this bonus-removal of phosphorus was attributed to chemical precipitates of calcium apatite, aluminum phosphate, and iron (III) phosphate trapped in the filter slime. This trickling filter study supports the enhances-removal mechanism for bonus-removal of phosphorus from hard water wastewaters reported for the activated sludge process.
1 citations
12 Feb 2013
TL;DR: In this article, a bench-scale trickling filter was assembled and characterized using a mathematical model to understand the effect of hydraulic loading on the dimensionless BOD percentage reduction at various depths of the filter.
Abstract: The treatment of wastewater from a crude oil platform situated in the shallow offshore of the Atlantic ocean of Nigeria by two standard plants, namely the Wemco Depurator and the Red Fox Treatment Plant have not adequately reduced the levels of oil contaminants and odour to acceptable limits for discharge. A secondary treatment, based on the principles of the trickling filter was therefore investigated to complement the two plants already in operation. A bench-scale trickling filter was assembled and characterized using a mathematical model to understand the effect of hydraulic loading on the dimensionless BOD percentage reduction at various depths of the filter and to determine the operational characteristics of the filter when packed with a plastic medium of specific area 22.96 m 2 /m 3 of bulk
1 citations