Methane Emissions Articles

  • A Hazardous Road to Success

    Chromatotec have established themselves in the Forefront of Sulphur Analysis in Hazardous Areas. Their latest Enhancement of their MEDOR range has Augmented their Rapid Rise in this Expanding Market. Most natural gas production and exploitation sites are considered to be hazardous area. This is certainly the case when it comes to Liquefied Petroleum Gases (LPG) sites. It is vital ...


    By Chromatotec Group

  • Good servant, bad master: sulfide influence on partial nitritation of sewage

    When applying partial nitritation (PN) to anaerobically pre-treated sewage, ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) will be exposed to dissolved sulfide and methane. Both sulfide and methane may inhibit nitrification. To gain knowledge necessary for sustaining PN under these conditions, we exposed an AOB enrichment and a mixed nitrifying culture to dissolved ...


    By IWA Publishing

  • Gas composition of sludge residue profiles in a sludge treatment reed bed between loadings

    Treatment of sludge in sludge treatment reed bed systems includes dewatering and mineralization. The mineralization process, which is driven by microorganisms, produces different gas species as by-products. The pore space composition of the gas species provides useful information on the biological processes occurring in the sludge residue. In this study, we measured the change in composition ...


    By IWA Publishing

  • Rethinking Grant Making to Reach California’s Methane Requirements

    California’s stringent methane reduction requirements at dairies, combined with the significant public resources it’s preparing to dedicate to accomplish this mitigation without harming the dairy industry, present an enormous opportunity to apply new thinking in climate finance to leverage private capital. At the kick off meeting for the Dairy and Livestock Greenhouse Gas Reduction ...


    By The Climate Trust

  • Gas Hydrate Breakdown Unlikely to Cause Massive Greenhouse Gas Release

    The breakdown of methane hydrates due to warming climate is unlikely to lead to massive amounts of methane being released to the atmosphere, according to a recent interpretive review of scientific literature performed by the U.S. Geological Survey and the University of Rochester. Methane hydrate, which is also referred to as ...

  • Monitoring the oxygen content in bio-methane-to-grid supply - Case Study

    Since 1984, Orbital has provided advanced technology solutions for the natural gas industry. Orbital’s customers, including the National Grid and the UK's gas distribution networks, rely on its crucial engineering support and specialised knowledge. Its value-added services and innovative products reduce the time it takes to identify, design and begin cost-effective delivery of new ...


    By Systech Instruments Ltd

  • Monitoring the oxygen content in bio-methane-to-grid supply

    Orbital utilise the EC91 ATEX oxygen analyser from Systech Illinois to accurately monitor the oxygen content in the purified bio-methane gas prior to it being injected into the national grid gas network In September 2010, Orbital installed the gas monitoring and treatment plant on the UK’s very first large-scale bio-methane-to-grid production facility. This site was designed specifically to ...


    By Systech Instruments Ltd

  • An integrated UMAS for POME treatment

    The direct discharge of palm oil mill effluent (POME) wastewater causes serious environmental hazards due to its high chemical oxygen demand (COD) and biochemical oxygen demand. This paper proposes a new approach for integrated technology of ultrasonic membrane for a POME treatment. The paper evaluated the economic viability based on the changes of the new design of ultrasonic membrane ...


    By IWA Publishing

  • Donald Blankenship Charged in Mine Disaster

    Former chief executive of Massey Energy Company, Donald Blankenship, was charged for multiple violations of safety rules and deceit of federal inspectors that ultimately led to the death of 29 coal miners during a single incident in 2010; the deadliest mine incident since 1970. Indicted on four criminal counts by a federal grand jury in the Upper Big Branch disaster, Blankenship faces a ...


    By SafetySmart

  • Reducing Oil & Gas Methane Emissions: EPA Regulations & Data Collection

    U.S. President Barack Obama and Canadian Prime Minister Justin Trudeau recently committed to very specific targets in the oil and gas sector. Their ambitious goal is to reduce methane emissions by 40-45 percent below 2012 levels by 2025. This target was reaffirmed ...


    By Intelex Technologies Inc.

  • New NSPS OOOOa Regulations Affecting Methane and VOC Emissions from the O&G Sector Finalized as of June 3, 2016

     The EPA has issued three final rules that will curb emissions of methane, smog-forming volatile organic compounds (VOCs) and toxic air pollutants such as benzene from new, reconstructed and modified oil and gas sources, while providing greater certainty about Clean Air Act permitting requirements for the industry. The EPA’s amended and new regulations affecting methane (CH4) and VOC ...


    By AEREON

  • The influence of temperature and SRT on high-solid digestion of municipal sewage sludge

    The influence of temperature and solids retention time (SRT) on high-solid digestion of municipal sewage sludge was investigated in laboratory-scale reactors. Digestion with high-solid concentration reduces the required digestion volume and is advantageous for urban areas. The experimental conditions comprised total suspended solids (TSS) in digested sludge between 4.0 and 4.6%, temperatures ...


    By IWA Publishing

  • EPA Tightens Chokehold On A Bruised O&G

    The Obama Administration is attacking one fuel at a time, the most recent being coal and natural gas, and now methane is next on the chopping block. Methane, a component of natural gas, is burned to produce heat and electricity for many end-users, ...

  • How big a problem are methane emissions and what can we do about it?

    Methane emissions and their climate effects have been given an increasing amount of attention over the last few years from academia, industry and policy makers. The US Environmental Protection Agency (EPA) have lead the way in proposing new performance ...

  • How to Reduce Methane Emissions with Thermal Mass Flow Meters

    The flare gas discussion is heating up again. According to the Bureau of Land Management (BLM), U.S. oil production is at an all-time high, and so are the harmful methane emissions from leaks, flaring and venting. U.S. Secretary of the Interior Sally Jewell has proposed to update ...


    By Sierra Instruments, Inc.

  • Analysis of methane emissions from digested sludge

    The energetic use of sewage sludge is an important step in the generation of electricity and heat within a wastewater treatment plant (WWTP). For a holistic approach, methane emissions derived from anaerobic treatment have to be considered. Measurements show that methane dissolved in digested sludge can be analyzed via the vacuum salting out degassing method. At different WWTPs, dissolved ...


    By IWA Publishing

  • Laboratory-scale membrane up-concentration and co-anaerobic digestion for energy recovery from sewage and kitchen waste

    This study assessed an alternative concept for co-treatment of sewage and organic kitchen waste in Vietnam. The goal was to apply direct membrane filtration for sewage treatment to generate a permeate that is suitable for discharge. The obtained chemical oxygen demand (COD) concentrations in the permeate of ultrafiltration tests were indeed under the limit value (50 mg/L) of the local ...


    By IWA Publishing

  • Extremely fast increase in the organic loading rate during the co-digestion of rapeseed oil and sewage sludge in a CSTR – characterization of granules formed due to CaO addition to maintain process stability

    In a co-digestion system running with rapeseed oil and sewage sludge, an extremely fast increase in the organic loading rate was studied to develop a procedure to allow for flexible and demand-driven energy production. The over-acidification of the digestate was successfully prevented by calcium oxide dosage, which resulted in granule formation. Mineralogical analyses revealed that the ...


    By IWA Publishing

  • Sewage sludge treatment: evaluation of the energy potential and methane emissions with COD balancing

    Sewage sludge is an important resource for the generation of electricity and heat within a wastewater treatment plant (WWTP). Taking a holistic approach to such use involves considering the greenhouse gas emissions. In particular, for anaerobic sludge treatment, methane emissions are a matter of concern. Therefore, the utilization of a carbon balance, based on the chemical oxygen demand (COD), ...


    By IWA Publishing

  • Two-phase anaerobic co-digestion of food waste and sewage sludge

    The feasibility and performance of food waste and sewage sludge co-digestion were investigated to gain insight into their resource utilization. In this study, two-phase anaerobic digestion (TPAD) was operated under a total solids mixing ratio of 1:1 and different sludge retention times (SRTs). Results show that an acidogenic reactor with a 5-day SRT obtained the highest acidification efficiency, ...


    By IWA Publishing

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