biological sample Articles

  • Trace metal status in marine biological samples: a review

    The literature on trace metal status in marine biological samples is reviewed, taking into account the importance of the subject. Marine organisms accumulate trace metals to body concentrations well above those in seawater. Different marine organisms differ significantly in accumulated tissue and total body concentrations of heavy metals. The present literature survey indicates that more than 26 ...


    By Inderscience Publishers

  • An interlaboratory comparison study for the determination of dialkyl phthalate esters in environmental and biological samples

    A series of interlaboratory comparison exercises were conducted to assess the accuracy of dialkyl phthalate ester (DPE) concentration measurements in environmental and biological samples. Five laboratories participated in analyses to determine DPE concentrations in standard test solutions; marine sediments; three certified reference materials (CRMs), including CARP‐2 (fish muscle) and BCR‐07 ...


    By John Wiley & Sons, Ltd.

  • Wetlands and biological case study

    Service(s) performed: File review and confirmatory soil sampling services Summary: At the request of a petroleum pipeline company, our environmental experts performed a comprehensive file review and regulatory correspondence activities to achieve a No Further Action (NFA) status for a release of crude oil from a pipeline in the Midwest U.S. After the release ...


    By EFI Global, Inc.

  • Treatment of tannery wastewater in a hybrid biological reactor

    A shaft-type hybrid bioreactor treated composite wastewater of a chrome tannery manufacturing 'wet-blue leather'. The sample was treated under suspended growth and then hybrid system with 20 g/L of 5 mm tyre tube beads in batch mode. The continuous study was made under suspended growth and hybrid system with 10-30 g/L of beads. The kinetic coefficients Ks, k, Y and k were 170.83 mg/L, 0.0397 h−1, ...


    By Inderscience Publishers

  • Strategies for the reduction of Legionella in biological treatment systems

    A community-wide outbreak of Legionnaire's disease occurred in Warstein, Germany, in August 2013. The epidemic strain, Legionella pneumophila Serogruppe 1, was isolated from an industrial wastewater stream entering the municipal wastewater treatment plant (WWTP) in Wartein, the WWTP itself, the river Wäster and air/water samples from an industrial cooling system 3 km downstream of the WWTP. ...


    By IWA Publishing

  • In Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...

  • Groundwater: Low-flow Purging and Sampling

    Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource.  Maintaining its quality and quantity and avoiding pollution are set to be ...

  • A high-performance aerosol concentrator for biological agent detection

    Introduction Particle sampling from ambient air is a well-developed technology described in many texts (e.g., Vincent 1989; Willeke and Baron 1993; Hinds 1999). However, there are many cases in which the concentration of airborne particles is so low that it becomes necessary to sample for extended periods of time to collect enough mass for chemical or biological characterization of the ...


    By MSP Corporation

  • Critical Role of Aerobic Uptake in Biological Phosphorus Removal

    ABSTRACTThe use of biological phosphorus removal (BPR) to remove phosphorus (P) from municipal wastewaters is well-established, and especially in recent years, there has been a significant increase in the number of utilities practicing BPR. The basic BPR mechanism includes two distinct steps: anaerobic P release, and aerobic P uptake. However, BPR design and optimization efforts have typically ...

  • Ex Situ Biological Treatment for Soil, Sediment, and Sludge

    The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...

  • Best practices in marine sample preparation with the Precellys® range

    Green house gas emissions might lead to a "collapse" of marine species and thus of the food chain. 10 to 12% of the species might disappear if the temperature increases by 2°C compared to thepre-industrialera. Advances in  research regarding the behavior of the marine world using protein markers, genetics and direct observations allow researchers to better apprehend the biodiversity and ...


    By Bertin Instruments

  • Laboratory tests describing the biological reactivity of pretreated residual wastes

    In Austria as well as in Germany, several ideas have been put forward on how to describe the biological activity of waste. Gas-generation potential, respiration activity and analysis of material groups ('Stoffgruppenanalysen' according to Van Soest, 1963) and eluate parameters like TOC, NH4-N, COD and BOD were discussed. The use of the Incubation Test (developed by the Department of Waste ...


    By ORBIT e.V.

  • Biochemical acidogenic potential in domestic wastewaters: effect of sampling and storage to characterize daily average composite samples

    To estimate the expectable enhanced biological phosphorus removal value of a wastewater, the concentration of volatile fatty acids (VFAs) and the biochemical acidogenic potential (BAP) are generally determined on grab samples of wastewater, as these variables are prone to rapid change after sampling. However, such sampling technique do not take into account the variations of these parameters ...


    By IWA Publishing

  • In Situ Biological Treatment for Ground Water, Surface Water, and Leachate

    The main advantage of in situ treatment is that it allows ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ treatment, however, generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more ...

  • Ex Situ Biological Treatment for Groundwater, Surface Water, and Leachate

    The main advantage of ex situ treatment is that it generally requires shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to monitor and continuously mix the groundwater. However, ex situ treatment requires pumping of groundwater, leading to increased costs and engineering for equipment, possible permitting, and material handling. ...

  • Radionuclide content of human samples in the Ramsar area of Iran

    As part of a survey to determine public exposure to natural radiation and to estimate radionuclide levels in the diet and human tissues, the radionuclide content of different biological samples of residents in Ramsar, a high level background radiation area (HLBRA) in Iran, has been measured. The main route of 210Po and 210Pb intake in the human body is ingestion ...


    By Inderscience Publishers

  • Modelling biological Cr(VI) reduction in aquifer microcosm column systems

    Several chrome processing facilities in South Africa release hexavalent chromium (Cr(VI)) into groundwater resources. Pump-and-treat remediation processes have been implemented at some of the sites but have not been successful in reducing contamination levels. The current study is aimed at developing an environmentally friendly, cost-effective and self-sustained biological method to curb the ...


    By IWA Publishing

  • Best practices for air sampling in veterinary environment with the coriolis® μ

    It is extremely important to monitor exposure to bio-contamination in veterinary-based facilities such as CAFOs, farms and life-stock areas. Reducing the risk of exposure to air borne bio-contaminants is crucial for the human and animal well-being in those environments. The Coriolis® μ innovative biological airsampler developed by Bertin Instruments is perfectly suited for environmental ...


    By Bertin Instruments

  • Reclamation of a mine contaminated soil using biologically reactive organic matrices

    Organic residues such as sewage sludge, biowastes and composts are increasingly used in land rehabilitation because they can improve the physical, chemical and biochemical properties of soil, and reduce the need for inorganic fertilization. Furthermore, their use contributes to an integrated approach to waste management by promoting recycling of nutrients and minimizing final disposal, especially ...


    By SAGE Publications

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