biological sampling Articles

  • Overview of Using Lead Through the History

    Various sources assumed the share of guilt in the fall of the Roman Empire due to the use of the lead pipe, Devonshire colic in the 18th century, poisoning from the addition of lead acetate to wine and pediatric lead poisoning. Not only production but also the use of pottery for centuries caused poisoning among the population. When a piece of pottery covered with lead glaze is not heated enough, ...


    By Lumex Instruments Group

  • 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.

  • Report on harmonization of freshwater biological methods

    Background and purpose of the document 1. The Water Framework Directive (WFD) requires (Annex V 1.3.6) that standards methods are used for the monitoring of water quality elements: ‘Methods used for the monitoring of type parameters shall conform to the international standards listed below or such other national or international standards which will ensure the provision of data of an ...


  • 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

  • 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

  • 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 ...

  • 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 ...

  • 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 ...


    By Geotech

  • Effect of fibre on shear strength of residue from mechanical–biological pretreatment of waste

    Fibres in the waste have a strong influence on shear strength. This is because even though the waste is characterised as a coarse material with a non-cohesive granular behaviour, it may nevertheless display high values of pseudocohesion due to the effect of the tensile strength of the fibre inclusions. Samples of pretreated residue with different particle sizes were prepared to study this effect. ...


    By Inderscience Publishers

  • Enhancing Biological Nutrient Reduction in Advanced Individual Onsite Wastewater Treatment Systems

    ABSTRACTAdvanced onsite systems need to continue to improve wastewater treatment through nutrient reduction. Some advanced onsite systems have been shown to reduce nutrients significantly. However, with modifications, these systems can reduce total inorganic nitrogen (TIN) to an even greater degree, and nitrate to levels below federal drinkingwater standards. INTRODUCTIONNitrogen compounds in ...

  • Cross-contamination issues during a biological emergency response effort: lessons learned

    Response Team investigators from the US Centres for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), recognised the potential for Bacillus anthracis (B. anthracis) cross-contamination during recent emergency response activities in the Capitol area. The three case studies presented offer the opportunity to examine procedural response practices ...


    By Inderscience Publishers

  • 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.

  • How Shasun maximises the investment in it`s biological wastewater treatment plant

    At the Dudley Shasun facility we have a 7500 m3 biological treatment plant that can treat up to 36 tonnes of waste COD per day. Part of this capacity is utilised to treat up to 15 tankers per day of third party aqueous waste. The waste is very varied, covering everything from leachates at only 2000ppm COD to industrial waste at up to 500,000ppm COD. The Strathkelvin respirometer forms a central ...

  • Tracking biological pollution sources using PCR-DGGE technology at Ta-An Beach

    The environmental authority of Taiwan has announced that ocean quality standard A, with E. coli less than 1,000 CFU/100 mL is safe for swimming. Ta-An Beach in central Taiwan was found to have exceeded 1,000 CFU/100 mL, which is 51% of the total monitoring records. Sewage, piggery and duck wastewater are discharged directly into this area. The traditional pollution source trace methods did not ...


    By IWA Publishing

  • 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

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