non-purgable organic carbon Articles

  • Confirming Natural Attenuation Processes at a Coastal Site - Case Study

    Past waste disposal practices at a California coastal site resulted in a groundwater plume containing CVOCs (mainly chlorinated ethenes [CEs] and 1,1-dichloroethane) migrating offshore towards a marine harbor. CVOCs are present in the sediment porewater adjacent to the shoreline, but concentrations decreased significantly between 2000 and 2015, and NA in the marine sediments was suspected. To ...


    By SIREM

  • Carbon offsets from organic waste conversion projects

    The Climate Act ion Reserve (the Reserve) has long had a protocol to give credit for the capture and destruction of methane emissions from organic waste in landfills, but they have now opened up the possibility of credits for projects that prevent that waste from entering landfills in the first place. In October 2009, the Reserve adopted the Organic Waste Digestion Project Protocol, covering both ...


    By Waste Advantage Magazine

  • Non-compliance of CRC carbon reporting

    Impacts to Organizations Who Do Not Comply with United Kingdom’s CRC Reporting Requirements Particular attention has been given to the effects of global warming and the potential for climate change. We have been told in no uncertain terms by scientists and environmentalists that our propensity to burn fossil fuels over the last 300 years has resulted in a considerable and adverse affect on our ...


    By Verisae

  • Capturing Organic Vapors from Non-Condensable Gases Using Activated Carbon Adsorption Technology

     There are many established uses of vapor phase carbon adsorption technology in the chemical industry. The majority are to capture organic vapors from non-condensable gas streams, such as process exhausts. Other applications include process gas separations such as the removal of oxygen from air in the production of nitrogen. This article focuses on the capture of organic vapors from ...


    By AMCEC Inc.

  • Metabolomics confirms that dissolved organic carbon mitigates copper toxicity

    Reductions in atmospheric emissions from the metal smelters in Sudbury, Canada, produced major improvements in acid and metal contamination of local lakes and indirectly increased dissolved organic carbon (DOC) concentrations; however, metal toxicity has remained a persistent problem for aquatic biota. Integrating high‐throughput, non‐targeted mass spectrometry metabolomics with conventional ...


    By John Wiley & Sons, Ltd.

  • Catalysis of CuSO4 for total organic carbon detection based on supercritical water oxidation

    The catalytic effects of CuSO4 in total organic carbon (TOC) detecting processes based on supercritical water oxidation have been investigated. Using benzoic acid as a model pollutant, the presence of a CuSO4 catalyst can significantly decrease the reaction temperature and H2O2 multiple during the TOC detection processes. A better TOC conversion efficiency was ...


    By IWA Publishing

  • True technical evolution in Total Organic Carbon (TOC) online monitoring

    TOC Evolution AquaGas introduces the TOC Evolution from SERES Environnement packed with true technical innovation empowering direct TOC online monitoring. TRUE TOC ANALYSIS The TOC Evolution allows accurate and complete measurement of  Total Organic Carbon featuring simultaneous and direct measurement of ...


    By AquaGas Pty Ltd

  • Halogenated Volatile Organic Compounds

    Sites where halogenated VOCs may be found include burn pits, chemical manufacturing plants or disposal areas, contaminated marine sediments, disposal wells and leach fields, electroplating/metal finishing shops, firefighting training areas, hangars/aircraft maintenance areas, landfills and burial pits, leaking collection and system sanitary lines, leaking storage tanks, radioactive/mixed waste ...

  • Bioaccumulation and toxicity of single walled carbon nanotubles (SWNT) to benthic organisms at the base of the marine food chain

    As the use of single‐walled carbon nanotubes (SWNT) increases over time, so does the potential for environmental release. Our research aimed to determine the toxicity, bioavailability and bioaccumulation of SWNT in marine benthic organisms at the base of the food chain. The toxicity of SWNT was tested in a whole sediment exposure with the amphipod Ampelisca abdita and the mysid Americamysis ...


    By John Wiley & Sons, Ltd.

  • Influence of salinity, dissolved organic carbon and particle chemistry on the aggregation behaviour of methacrylate–based polymeric nanoparticles in aqueous environments

    This study investigates the influence of salinity, dissolved organic matter (DOM) concentration, particle chemistry and particle concentration on the aggregation behaviour of methacrylate–based polymeric nanoparticles (PNPs) in aquatic systems. Three PNPs with different chemical compositions were synthesised by mini–emulsion polymerisation using an ionic (sodium dodecyl sulphate; SDS) and a ...


    By Inderscience Publishers

  • New Green Methodology for Measuring Total Organic Carbon (TOC) — Supercritical Water Oxidation (SCWO)

    Analyzing the total organic carbon (TOC) content of industrial wastewater, process influent and effluent water, and environmental water samples can be very challenging. These aggressive sample matrices often clog or damage TOC analyzers that use the combustion method. This can result in expensive preventive maintenance and excessive non-regenerative waste. To address these critical issues, GE ...


    By GE Analytical Instruments

  • Nitrogen and carbon removal thanks to bacterial processes in a single stadium system ( PRiBioAC 3S ) in wastewaters with high organic and nitrose load

    Biologic procedure for nitrogen and carbon removal in a single step system (PriBioAC 3S) from zootechnical sewage with an high organic and nitrogen level. A solution for nitrate problem Paolo Broglio (paolo.broglio@ecologia-applicata.it) - Ecologia Applicata S.r.l. Services for Ecology Scientific Organization of Environmental ...


  • Methodological issues related to non-carbon benefits of REDD+ activities

    It is widely accepted that the UNFCCC mechanism to reduce emissions from deforestation and forest degradation (REDD+) will need to provide a wide range of social, environmental and governance benefits to achieve permanent greenhouse gas emission reductions at scale. The provision of such non-carbon benefits (NCBs) is crucial for several reasons. Quality emission reductions are more likely to be ...


    By Wetlands International

  • Carbon Monoxide (CO) Versus Carbon Dioxide (CO2)

    Carbon monoxide (CO) and carbon dioxide (CO2) are often mistaken for one another. Both gases are odourless and colorless and target the cardiovascular system. Both gases can enter the body through inhalation, skin and / or eye. Similar symptoms that both gases have in common are headaches, dizziness, seizures, and hallucination. Most people have a hard time determining the difference and do not ...

  • Carbon nanotube surface science

    This paper presents a surface science perspective on sidewall functionalisation of carbon nanotubes. Carbon nanotubes are varyingly described by physicists as extended solids or by organic chemists as molecules. As prototypical nanostructures, they are indeed a little bit of both. Their chemistry and resulting potential applications can only truly be appreciated by combining both perspectives. ...


    By Inderscience Publishers

  • Biodegradability of Dissolved Organic Nitrogen: Adaptation of the BOD Test

    To prevent eutrophication in receiving waters, many astewater treatment plants are being firected by regulatory agencies to achieve very low levels of total nitrogen (3-4 mg/L TN or lower) in the effluent. Dissolved organic nitrogen (DON) component is included within these total nitrogen limits. The regulations assume that DON is completely biodegradable, and therefore needs to be included in any ...

  • Rejection of trace organic compounds by RO/NF

    The objective of this study is to develop a mechanistic understanding of the rejection of trace organic compounds by high-pressure membranes, based on an integrated framework of compound properties, membrane properties, and operational conditions. High-pressure membranes, encompassing reverse osmosis (RO), low-pressure RO (LPRO), and nanofiltration (NF), may provide an effective treatment barrier ...


    By Toray Chemical Korea

  • Properties, applications and functionalisation of carbon nanohorns

    Functionalisation of carbon nanohorns (CNHs), by covalent bonding or non-covalent supramolecular interacting organic moieties, overcomes insolubility problems and enhances manipulation and processibility. The present review paper summarises our recent accomplishments in the field of chemical modification of CNHs together with various critical and important aspects related to their synthesis, ...


    By Inderscience Publishers

  • Passive sampling methods for contaminated sediments: State of the science for organic contaminants

    This manuscript surveys the literature on passive sampler methods (PSMs) used in contaminated sediments to assess the chemical activity of organic contaminants. The chemical activity in turn dictates the reactivity and bioavailability of contaminants in sediment. Approaches to measure specific binding of compounds to sediment components, e.g., amorphous carbon or specific types of reduced ...


    By John Wiley & Sons, Ltd.

  • EPA enforcement can be costly for organizations that do not track refrigerant gases

    The EPA penalty aspect of the U.S. Clean Air Act is managed by the Office of Enforcement and Compliance Assurance. The agency is diligently enforcing requirements to reduce harmful gas emissions. The law allows auditors and inspectors to conduct on-site inspections and request a facility's records regarding their regulation of gases. Without providing proper documentation, or supplying incomplete ...


    By Verisae

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you