Organics Analysis Articles

  • Case study - Groundwater monitoring around hydraulic fracturing sites in Colorado

    Hydraulic fracturing or ‘Fracking’ has become more prevalent and controversial in the US in recent years. More than 90 percent of new wells in the US are completed using this method. While it is endorsed by some as a game-changer that promises an increase in the nation’s economy due to energy independence, job creation, and lower energy prices; others are calling for a temporary ...

  • E-Z Trays® Treating Multiple Groundwater Contaminants in Grand Island, NE - Case Study

    The U.S. Environmental Protection Agency has launched an effort to treat contaminated groundwater in Grand Island, Nebraska. The Parkview Well Superfund Site consists of two areas of groundwater contamination, the Northern and Southern Plumes, which include several volatile organic contaminants including tetrachloroethene (PCE), 1,1-dichloroethene (DCE), 1,1,1-trichloroethane (1,1,1-TCA) and ...


    By QED Environmental Systems

  • Biological monitoring system, iTOXcontrol, continues in Scarlino - Case Study

    The recorded death of fish in the river that flows out of the industrial zone of Scarlino has created the need of the installation of a biological alarm system. The decision was made to work with an automatic system, iTOXcontrol created by microLAN-The Netherlands represented in Italy by Ecotox Lds, which uses marine bacteria. The system compares the values of the light emission from these ...


    By microLAN B.V.

  • Neighbor Detection Induces Organ-specific Transcriptomes, Revealing Patterns Underlying Hypocotyl-specific Growth

    Abstract In response to neighbor proximity, plants increase the growth of specific organs (e.g., hypocotyls) to enhance access to sunlight. Shade enhances the activity of Phytochrome Interacting Factors (PIFs) by releasing these bHLH transcription factors from phytochrome B-mediated inhibition. PIFs promote elongation by inducing auxin production in cotyledons. In order to elucidate ...


    By H Smith Plastics LTD

  • Real Tech Inc Brochure

    For over a decade, our vision has remained the same: To improve access to water quality monitoring through the development of practical and affordable solutions.  Our comprehensive product solutions provide rapid and accurate detection of contaminants, such as organics and nitrates while maintaining ease of use and cost effectiveness.  With thousands of clients in 45 countries around ...


    By Real Tech Inc.

  • Limit Risk and Enhance Balance Testing Ease with New White Paper

    Upgrade balance testing security and compliance with WeightLink, an innovative tracking system that assigns unique, scannable identifiers to each weight. Learn how quick weight identification and automated data gathering enhance balance testing by downloading our free white paper as part of METTLER TOLEDO's 2016 e-calendar. Adjustment and testing of lab balances can ...


    By Mettler - Toledo Int. Inc

  • Optimization of atmospheric air plasma for degradation of organic dyes in wastewater

    This study optimises the degradation of a cocktail of the dyes methyl orange and bromothymol blue by atmospheric air plasma. Response surface methodology (RSM) was employed to investigate the efficacy of the plasma process parameters on degradation efficiency. A Box–Behnken design (BBD) was employed to optimise the degradation of dyes by air plasma discharge. A second order polynomial equation ...


    By IWA Publishing

  • Thermal Analysis of Medical Materials

    Thermal analysis offers an accurate and cost-effective way to test materials that will be used for medical purposes. In a new live presentation, METTLER TOLEDO experts will review the benefits of various thermal analysis methods commonly used to test the properties, characteristics, and safety of potentially lifesaving new materials. METTLER TOLEDO is pleased to present ...


    By Mettler - Toledo Int. Inc

  • Monitoring the fate of fluorescing substances recycled in ultrafiltration process backwash water

    The fate of fluorescing substances during the recycling of membrane backwash water (MBWW) ahead of coagulation, flocculation and sedimentation (CFS) with ultrafiltration (UF) membranes has been investigated. Bench-scale UF membranes were used to generate MBWW from a CFS-treated surface water containing 21 mg/L dissolved organic carbon (DOC) registering a 0.95 cm–1 UV254 absorbance that ...


    By IWA Publishing

  • Characteristics and sources analysis of riverine chromophoric dissolved organic matter in Liaohe River, China

    Chromophoric dissolved organic matter (CDOM) in riverine systems can be affected by environmental conditions and land-use, and thus could provide important information regarding human activities in surrounding landscapes. The optical properties of water samples collected at 42 locations across the Liaohe River (LHR, China) watershed were examined using UV-Vis and fluorescence spectroscopy to ...


    By IWA Publishing

  • How High-Pressure DSC Can Accelerate Reactions and Shorten Analysis Time

    Increased pressure influences all physical changes and chemical reactions in which a change in volume occurs. In a complimentary webinar from METTLER TOLEDO, learn how high-pressure differential scanning calorimetry (DSC) allows faster materials testing for timely product development and responsive quality management. METTLER TOLEDO is pleased to present a new webinar, “High ...


    By Mettler - Toledo Int. Inc

  • 3DEEM spectroscopy analysis to assess the EPS composition in different carriers in HMBR systems

    A hybrid membrane bioreactor (HMBR) with biological band carriers (Reactor A) and an HMBR with suspended honeycomb carriers (Reactor B) were conducted in parallel to investigate the effects of different carriers on extracellular polymeric substances (EPS). Composition and concentration of EPS were examined by three-dimensional excitation-emission matrix (3DEEM) fluorescence spectra and ...


    By IWA Publishing

  • Wastewater treatment plant effluent as a source of microplastics: review of the fate, chemical interactions and potential risks to aquatic organisms

    Wastewater treatment plant (WWTP) effluent has been identified as a potential source of microplastics in the aquatic environment. Microplastics have recently been detected in wastewater effluent in Western Europe, Russia and the USA. As there are only a handful of studies on microplastics in wastewater, it is difficult to accurately determine the contribution of wastewater effluent as a source ...


    By IWA Publishing

  • PeCOD® Pulp and Paper Applications - Case Study

    The pulp and paper industry utilizes wood as raw material to produce pulp, paper, card board, and other cellulose based products. Pulp and paper mills produce large volumes of wastewater and residual sludge which presents a number of challenges with regards to treatment and discharge. Contaminants in pulp and paper waste streams often include effluent solids, sediments, absorbable organic halides ...


    By MANTECH

  • A Practical Solution for Real Time Organic Monitoring

    Monitoring organics continuously provides instantaneous water quality data that is vital for several of the most common water and wastewater treatment applications. Online organic water quality testing ensures that immediate action can be taken to establish proper treatment. real-time organic monitoring is invaluable  for optimizing and controlling coagulant dosing; monitoring ...


    By Real Tech Inc.

  • Water Distribution System Security Monitoring

    A water security instrument essentially needs to be able to detect potential contaminants in drinking water. Since a significant number of potential chemical contaminants are organic in nature, a water security monitoring instrument that can detect organic matter in water is perfect for this application. Real Tech has developed an instrument specifically designed for water security ...


    By Real Tech Inc.

  • Organics Monitoring (TOC)

    Total organic carbon (TOC) testing is the traditional method for determining organic matter in water. However there is a far more practical, affordable and often more useful way to measure organic matter. UV absorbance testing (UVA) is rapidly becoming the preferred method of measuring organics even when the levels of organics being measured are very small. Organic Matter Organic ...


    By Real Tech Inc.

  • Seasonal organics variations: effects on the efficiency of water treatment processes

    Natural organic matter (NOM) in source water has created a lot of interest in the field of water purification. It is of particular concern for surface water treatment plants since it can produce undesirable disinfection by-products (DBPs), interferes with the performance of water treatment processes such as coagulation, membrane filtration, and oxidation processes, and leads to ...


    By Real Tech Inc.

  • Case study - Monitoring of river pollution with time weighted average (TWA) water concentrations with semipermeable membrane devices (SPMD)

    Project reference Project: Pilot project of Umeå river investigation (Sweden) Customer: Umeå county, Sweden Project period 2000-2001 Nature of task: Determination of PCB point source in Umeå river Summary ...


    By Exposmeter AB

  • Fabrication of polysiloxane-modified polyurethane sponge as low-cost organics/water separation and selective absorption material

    Through sol-gel and dip-coating processes, commercial polyurethane sponge modified by polysiloxane was fabricated under low temperature (60 °C) and atmosphere. The contact angle of the obtained polysiloxane/polyurethane sponge is 145 ± 5°. Hence, the polysiloxane/polyurethane sponge could float on water and selectively absorb organics from the surface of the water, indicating simultaneous ...


    By IWA Publishing

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