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Showing 1 to 20 of 48 for “"Biofiltration"”.
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Sodium Transfer in Biofiltration Wetland Sediments
The model generally predicted the sediment sodium concentration consistent with the sodium measured in seasonal sediment samples. The model was especially sensitive to changes in sodium concentrations in the overlying water and was also sensitive to changes in both the sediment porosity and clay …
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Assessing Biofiltration Pretreatment for Ultrafiltration Membrane Processes
An engineered biological filtration (biofiltration) process treating a nutrient-enriched, low-alkalinity, organic-laden surface water downstream of conventional coagulation-clarification and upstream of an ultrafiltration (UF) membrane process was assessed for its treatment effectiveness. The …
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Performance of Floating Biofiltration in Methane Oxidation
… contributes substantially to climate change. Biofiltration, which relies on microbial oxidation, has emerged as a sustainable and effective method for mitigating methane emissions. This study introduces a novel floating biofiltration system designed to enhance methane removal directly from the …
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Biofiltration of volatile organic compounds using fungal-based bioreactors
… the demand for efficient abatement technologies. Biofiltration, a process in which contaminated air is passed through a biologically active bed, can be used to remove these pollutants from air streams. In this study, the black fungi Exophiala lecanii-corni and Cladophialophora sp. were evaluated …
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Gas-phase biofiltration for livestock building ammonia emission mitigation
Biofiltration is recognized as an effective technology to mitigate certain livestock building ammonia emissions. Biofilters are bio-reactors that can absorb ammonia and then oxidize it into nitrite and nitrate using microorganisms. Woodchips and composts are often used as packing materials thus …
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Validating Pathogen Reduction in Ozone-Biofiltration Water Reuse Applications
… both full-scale and pilot-scale floc/sed-ozone-biofiltration advanced water treatment facility. Both culture and molecular-based methods were used to demonstrate removal in this case and pilot challenge testing was employed to address the shortcomings of full-scale monitoring and to address …
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Biofiltration du méthane issu de l'industrie porcine influence de l'ammonium
… 2]). Pour traiter le CH[indice inférieur 4], la biofiltration a déjà fait ses preuves pour le traitement des émissions de CH[indice inférieur 4] provenant des lieux d'enfouissement sanitaires (LES) et des mines. Ce procédé peut être également appliqué au CH[indice inférieur 4] issu de l'industrie …
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Biofiltration for Control of H2S from Wastewater Treatment Plant Gases
A low-cost and efficient methodology was used to test the performance of a biofilter removing gaseous hydrogen sulfide generated in the headworks and a primary clarifier of a local Wastewater Treatment Plant. The contaminated gas stream is distributed upward through 1,718 m3 of filter material. …
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Fate and impact of antibiotics in slow-rate biofiltration processes.
… at oxidizing pharmaceuticals. Slow-rate biofiltration processes (SRBF), such as slow sand filtration (SSF) and riverbank filtration (RBF), are drinking water treatmeant systems comprised of two stages in sequence: 1) a relatively shallow biotic region where media (i.e., filter sand or …
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Investigation of Bromate Formation during Ozone-Biofiltration Treatment Processes for Potable Reuse Application
… in ozone effluent and decreases after the biofiltration process. As bromate formation is strongly influenced by water quality and operational variables, water quality parameters (i.e. bromide, ozone dose, pH, ammonia, TOC, alkalinity, conductivity and temperature) were measured during the …
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Biofiltration du méthane avec ou sans composés traces sur un milieu filtrant inorganique
… configuration de non respect de ces critères, la biofiltration est un procédé d'élimination du biogaz attractif en particulier pour les sites d'enfouissement de petites tailles et ceux «âgés», ainsi qu'en complément des solutions de valorisation énergétique. Les paramètres essentiels de la …
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Fundamental and Practical Aspects of Cometabolite Addition for 1,4-Dioxane Removal in Biofiltration
1,4-Dioxane is a probable human carcinogen and common contaminant in potable reuse water, drinking water, wastewater, groundwater, and landfill leachate. Historically used as a chlorinated solvent stabilizer, 1,4-dioxane can be found in legacy wastes, contaminated groundwater sites, and in trace …
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Investigating upflow biofiltration using the Biostyr process by varying the organic strength of the influent
The performance of Biostyr media using an upflow biofilter scheme was investigated. Three separate Modes that varied the organic strength of the influent at an operating temperature of 12°C were evaluated to explore how nitrification and denitrification responded to different concentrations of …
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Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and EDCs from wastewater
A lot of attention has been paid to trace amounts of pharmaceuticals and personal care products (PPCPs) and endocrine disrupting compounds (EDCs) in drinking water supplies. Current water and wastewater treatment techniques, such as coagulation, flocculation, and sedimentation for water treatment …
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The use of biofiltration cells to filter contaminated water flowing from a slum settlement in South Africa
… is intercepted and diverted through six biofiltration cells. These cells were packed with different types of natural media, three of which were planted with a variety of reeds while the other cells were kept as control cells. Water that flows into each biofiltration cell is controlled via …
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Long-Term Lab Scale Studies of Simulated Reclaimed Water Distribution: Effects of Disinfectants, Biofiltration, Temperature and Rig Design
… two years to examine the role of system design, biofiltration, residual disinfectant type (i.e., chlorine, chloramine, no residual) and temperature on important aspects of chemistry and microbial regrowth under laboratory-controlled conditions. Turbidity decreased to 0.78 NTU after biofiltration …
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Assessing Biofiltration without Ozonation for Removal of Trihalomethane Precursors in Drinking Water at the Beaver Water District Drinking Water Treatment Plant
<p>Biofiltration without pre-ozonation has the capability to remove natural organic matter (NOM) fractions that serve as precursors of disinfection byproducts (DBPs), which include the four regulated trihalomethanes (THMs) and dichloroacetonitrile (DCAN). Rapid small-scale column tests (RSSCTs) and …
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The performance of a field scale biofiltration cells in reducing nutrient rich surface runoff from an informal settlement in South Africa
Concerns about the deterioration of water quality are exacerbated by the effects of rapid and unplanned urbanisation in South African urban catchments as the number of informal settlements next to watercourses increase. Residents living in nonsewered informal settlements typically discard their …
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Development of Water and Wastewater Biofiltration Technologies for the Developing World using Locally Available Packing Media: Case Studies in Vietnam and Haiti
<p>Water and sanitation are two of the world's most urgent current challenges (Elimelech, 2006). With a population racing towards seven billion people, over one sixth of the human population does not have access to adequate water and sanitation. Drinking water is inaccessible for approximately 783 …
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