reduce microbial activity and inhibit removal performance. Washing of the packing with either 20° C or 50°C water showed efficiency as >3 kg dry biomass/m3 filter can be removed at both temperatures with removal efficiencies at approximately 40% after treatment. Finally, different technologies were compared and summarized to propose an optimized strategy of biomass …
Online Service· Most active biomass was present in the bottom 25% of the biofilter near the inlet. By means of repeatedly washing intact cells, a sharp decline of EPS content of washed cells was obtained, while active biomass rarely decreased. Microbial activity as well as cell hydrophobicity at different filter depths decreased with the decline of EPS.
Online Service· Microbial biomass change shifts the role of iron oxides in organic C mineralization in anoxic paddy soil. by Li Yuan, Chinese Academy of Sciences
Online ServiceCiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract: Biomass and microbial activity in backwashing processes of a biofilter for tertiary treatment were investigated. The microbial groups revealed new distribution along the biofilter depth after low flow rate backwashing for a short time. Then the start-up process was accelerated by
Online ServiceIn biofiltration, organic pollutants are metabolized to carbon dioxide and water under microbial activity (Deshusses, 1997). The volatile (organic/inorganic) compounds present in the waste gases that cause odour are removed by microbial metabolism as they serve as the source of energy and/or carbon for the
Online Service· Biomass and organic matter content was high in Friedrichshafen, Eriskirchen and Wangen (>25 pmol/g ATP, >40 mg/g Loss on ignition), whereas the remaining five biofilters were low in biomass and organic matter, with the lowest measurements in the filter materials from drinking water systems (BWA and IFW; < pmol/g ATP, <9 mg/g Loss on ignition) (Table 2,
Online ServiceBiomass C. Figure 2: Microbial activity measured by respiration and biomass carbon in four turf grasses of different ages compared to neighbouring forest (Shi. et al. 2022). The activity of organisms in the soil requires enzymes to break down organic matter. The amount or activity of the enzymes in soil can give an estimation of the biological
Online ServiceSoil microbial biomass C content after incubation at 75 days in NVAS and VAS. NVBS Organic materials Control PMC FWC OF-Powder OF-Pellet Microbial biomass N, mg kg-1 0 100 200 300 400 10 oC 20 oC 30 oC VBS Organic materials Control PMC FWC OF-Powder OF-Pellet 0 100 200 300 400 Figure 2. Soil microbial biomass N content after incubation at 150
Online ServiceOkkerse et al. (1999)3 incorporated an active biomass fraction and inert biomass fraction to distinguish microbial components in the biofilm phase but not achieving biofilter clogging in the experimental operation. In the present work, a lab-scale biofilter treating high loads of toluene was designed in order to quantify and understand biomass accumulation towards future …
Online ServiceInoculated AOA thrived in filter biofilm during and beyond stabilization of low-ammonia conditions in aquaria. Microbial activity experiments demonstrated that AOA were present and active in the biofilters eight months after inoculation, when aquaria were fully established. In addition, AOB and AOA populations were monitored in new aquaria in three unregulated home …
Online ServiceMicrobial biomass, metabolic coefficient, well-drained savannas, cover crops, maize. Introduction The microbial biomass is a fundamental factor of the soil fertility because it transforms all the organic residues that enter into the soil. It has an important role in nutrient availability for plants and at the same
Online ServiceDuring RCPs treatment, lignin peroxidase (LiP), manganese peroxidase (MnP) and laccase enzyme activities were also recorded indicating that these enzymes are involved in RCPs degradation. The RCPs
Online ServiceDuring RCPs treatment, lignin peroxidase (LiP), manganese peroxidase (MnP) and laccase enzyme activities were also recorded indicating that these enzymes are involved in RCPs degradation. The RCPs
Online ServiceCompost columns also demonstrated greater microbial activity during TOrC injection and flushing, as indicated by lower effluent DO levels . Notably, TOrC retention times were enhanced by amendment of sand with just wt % biochar (, breakthrough occurred approximately 100 PVs later in biochar–sand columns than in sand-only columns) despite the severe fouling …
Online ServiceBiomass and microbial activity in backwashing processes of a biofilter for tertiary treatment were investigated. The microbial groups revealed
Online ServiceBINI, DANIEL MICROBIAL BIOMASS AND ACTIVITY IN LITTER DURING THE INITIAL DEVELOPMENT OF PURE AND MIXED PLANTATIONS OF Eucalyptus grandis AND Acacia mangium. Revista Brasileira de Ciência do Solo 37 p. 76-85 Fev. 2022. Artigo Científico.
Online Service· Since air can play a central role as a reservoir for microorganisms, in controlled environments such as operating theatres regular microbial monitoring is useful to measure air quality and identify critical situations. The aim of this study is to assess microbial contamination levels in operating theatres using both an active and a passive sampling method and then to …
Online ServiceYou searched for: Publication Year 2022 Remove constraint Publication Year: 2022 Subject microbial communities Remove constraint Subject: microbial communities Subject bacteria Remove constraint Subject: bacteria. Start Over. Toggle facets Limit your search Text Availability. Citation in PubAg 48; Journal
Online Servicebiofilters and for the control of the wastewater treatment processes. Widely used methods for characterization of the biofilms are thickness, dry weight and the total number of microbial cells (12). These parameters, however, are not sufficient to provide a precise evaluation of the biofilm activity. This is why there are methods developed for studying and regulating the …
Online Servicemicrobial community indoors may in fact lower air quality through the production of microbial agents such as spores or aerial bacteria. Questions have arisen regarding the impact of an indoor air biofilter on ambient spore concentrations including the pathogen Legionella pneumophilia. This study presents empirical evidence which indicates that indoor air biofilters do not …
Online Servicereduce microbial activity and inhibit removal performance. Washing of the packing with either 20° C or 50°C water showed efficiency as >3 kg dry biomass/m3 filter can be removed at both temperatures with removal efficiencies at approximately 40% after treatment. Finally, different technologies were compared and summarized to propose an optimized strategy of biomass
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Online Service· Microbial activity in biofilters is important for dissolved organic matter (DOM) removal efficacy and may be influenced by various water quality parameters and filter operations, such as influent DOM, temperature, and backwashing conditions. Adenosine triphosphate (ATP) is the primary energy carrier in all living cells and is used for cell synthesis and maintenance. …
Online ServiceAfter 1day, the active microbial biomass was higher in the soil with A. caliginosa than without the earthworm. At the subsequent samplings, there were
Online Service07/07/2022 · Soil mass effect of the filter RE. Test conditions: ml/min, g, g, g, kPa, % for CO 2, 13 ppm for NH 3, and 836 ppm for H 2 S. For the case of NH 3, RE was 83% but dropped to 33% for T3-200 and as high as 83% to 77% drop for T3-150. The filter T3-100 had a maximum RE of 80% before saturation.
Online ServiceThe activity tests carried out at 55 °C showed an irreversible loss of the activity due to the observed biomass lysis. Subsequently to the batch tests, a sequencing batch reactor (SBR) was
Online Service· Most active biomass was present in the bottom 25% of the biofilter near the inlet. By means of repeatedly washing intact cells, a sharp decline of EPS content of washed cells was obtained, while active biomass rarely decreased. Microbial activity as well as cell hydrophobicity at different filter depths decreased with the decline of EPS.
Online Service· Identification and quantification of inert biomass will give a better understanding of biomass accumulation in biofilters and will result in a more exact simulation of biomass change during long-term operations. Results also indicate that an ideal biomass control technique should be able to remove most inert biomass while simultaneously preserving as much active …
Online ServiceBiofilm formation and microbial activity in a biofilter system in the presence of MTBE, ETBE and TAME. Chemosphere. 2022 Oct; 85(4):616-24. C. Abstract. Emerging water contaminants derived from unleaded gasoline such as methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME), are in need of effective bioremediation
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