NOx removal Articles

  • Advanced WESP designs assure superior gas cleaning performance

    Nowadays, many industries are facing formidable environmental challenges and there is a growing need for effective, economical gas cleaning and air pollution control equipment. Michael Beltran of Beltran Technologies, Inc. reports on a renewed interest in high-efficiency wet electrostatic precipitators (WESPs) and discusses their importance for controlling sulphuric acid mists and other ...


    By Beltran Technologies, Inc.

  • EPA Proposed “Franken-MACT” for Utilities

    EPA published the highly anticipated proposed Maximum Available Control Technology (MACT) Standard for the utility sector (40 CFR 63 Subpart UUUUU). When considered together with the growing list of proposed and final rules impacting the utility sector (Transport Rule/Cross-State Rule, Coal Combustion Byproducts Rule, Cooling Water Intake Rule, Regional Haze Rule, revised National Ambient Air ...


    By Trinity Consultants

  • FTIR Emissions Analyser helps manage UK Power Station

    A Gasmet FTIR multiparameter emissions monitor at Thetford power station is being used to demonstrate that the plant is performing within the conditions of its environmental permit. However, the data from the analyser, which was supplied by Gasmet’s UK distributor Quantitech, also performs a vitally important role in helping to manage the plant. “Individual gas readings are displayed ...


    By Gasmet Technologies Oy

  • Water Sustainability

    I7.1  | Water Optimization – 30% Groundwater Use Reduction Tabatha Pellerin, Senior Program Manager, AECOM AECOM assisted the Entergy Lewis Creek gas/coal fired electric power plant with water conservation efforts prompted by a goal of 30% ...

  • Final CISWI rule

    On March 21, 2011, in parallel with publication of the Boiler National Emission Standard for Hazardous Air Pollutants (NESHAP) rules and the Non-Hazardous Secondary Material (NHSM) rule, EPA promulgated the final updates to the New Source Performance Standards (NSPS) and Emission Guidelines (EG) for Existing CISWI Units, collectively referred to as the “2011 CISWI Rules.”1 The 2011 ...


    By Trinity Consultants

  • Acid Rain Program: SO2 Allowance Trading System Fact Sheet

    The innovative, market-based SO2 allowance trading component of the Acid Rain Program allows utilities to adopt the most cost-effective strategy to reduce SO2 emissions at units in their systems. The Acid Rain Program operating permit outlines the specific program requirements and compliance options chosen by each source. Affected utilities are also required to install systems that continuously ...

  • Case study - Amine tail gas treatment

    COVERING YOUR TAIL GAS The discovery of new shale formations throughout the world and the development of new drilling technologies have increased natural gas production and prompted government agencies to instigate tighter air-pollutioncontrol regulations on processing operations. Unfortunately, meeting environmental regulations is not a profit-generating endeavor. Simply put, the time ...

  • Landfill gas to fleet fuel in Ohio

    In mid-September, the Solid Waste Authority of Columbus, Ohio (SWACO) cut the ribbon on Phase I of its Green Energy Center that will convert landfill gas to compressed natural gas (CNG) for use in CNG-powered cars and medium duty trucks. The facility will produce enough CNG annually to replace almost 250,000 gallons of gasoline, plus additional natural gas sufficient to generate electricity for ...


    By BioCycle Magazine

  • A look back at U.S. climate policy in 2011

    As the year winds down, it’s a good time to take stock of climate policy in the United States. Here’s a quick round up of what happened – or didn’t happen – in 2011. The year began with big questions about what the Obama Administration and states would do to address climate change and clean energy, absent a comprehensive federal climate policy. This year’s ...

  • Focusing on environmental pressures from long‑distance transport

    The European Environment Agency's (EEA's) annual Transport and Environment Reporting Mechanism (TERM) report presents an overview of transport demand and pressures from the sector on the environment, as well as selected related impacts and policy responses. The report makes use of the latest available data in order to assess key trends and overall progress in meeting policy targets. The 2014 TERM ...

  • Confronting allegations of air quality non-compliance

    A facility with an air quality permit must comply with all the conditions of that permit and demonstrate its compliance on an on-going basis. Unfortunately, no matter how diligently the facility and corporate staff strives to assure continuous compliance, unexpected compliance challenges can occur. For example, new equipment fails the emissions guarantees provided by equipment vendors; new staff ...


    By Trinity Consultants

  • Mixed MSW composting in transition

    WITHOUT a doubt, composting the mixed municipal solid waste stream is a “niche” business. It is an MSW management option that seems to be viable in very specific situations. In some instances, these plants were built to service tourist destinations, often in somewhat rural areas where recycling is difficult and landfills are distant. In several other cases, public agencies built plants to extend ...


    By BioCycle Magazine

  • Flexographic printer chooses the TRITON Series Regenerative Thermal Oxidizer - Case study

    A flexographic printer recently installed a TRITON-Regenerative Thermal Oxidizer from Catalytic Products International, Inc. The TRITON system was contracted on a turnkey basis, in which CPI engineered and installed; the fugitive enclosure system to meet method 204, the ductwork system from all presses, foundation work, electrical integration, and rigged the oxidizer. The project was installed on ...

  • Ferrous Wear Metal Measurement Made Easy with the FerroCheck

    Historically, one of the most cost-effective indicators of machinery health has been the analysis of ferrous debris in oil. Such analysis utilizes the ferromagnetic properties of generated debris to perform the analysis. Since nearly all wear debris contains ferrous material (in particular iron), an abnormal increase in the amount of debris can be directly correlated to abnormal machinery ...


    By Spectro Scientific

  • Ask Enhesa Vol. 6

    Featuring contributions from Gabriela Troncoso, Katsiaryna Anoshka, Elise Saade, Kengo Okuda, Paige Samson, Caitlin O’Sullivan, Ruth White and Wassila Nabourema and Tjeerd Hendel-Blackford ...

  • Innovative Ammonia Control - Case study

    Ammonia has increasingly become more of a regulatory concern. Ammonia emissions into the atmosphere have been linked to the formation of fine particulate matter, while ammonia emissions in wastewater are restricted because of the negative affect the chemical has on rivers, lake, and aquifers. Many sources of biofuels contain ammonia or can create ammonia during processing. The following case ...

  • Expert Installation Services Soar to New Heights

    Along with providing equipment to solve customer’s complex VOC, NOx, and Odor pollution challenges, we also provide installation services. I was on site for the recent “lift” of a new QUADRANT SR-35,000 Thermal Oxidizer (TO). Capital equipment, like a Thermal Oxidizer, is designed to operate for many years; however wear and tear eventually may require the equipment to be ...

  • Heat/Web offset printer uses the TRITON Series Thermal Oxidizer - Case study

    A heat-set/web offset printer recently installed a TRITON-Regenerative Thermal Oxidizer from Catalytic Products International, Inc. The TRITON system was contracted on a turnkey basis, in which CPI engineered and installed; the ductwork system from all dryers, foundation work, electrical integration, and rigged the oxidizer. The project was installed on time and without any added costs. The ...

  • A Breath of Fresh Air for Your

    As the full effect of the Federal Clean Air Act (CAA) Amendments continue to impact today’s industry, many companies will be required to install new or additional air pollution control equipment.  With over two decades of proven success, catalytic oxidation is a popular method for controlling volatile organic compound (VOC) emissions.During the past 25 years, industry has made progress in ...


    By The CMM Group, LLC

  • Emissions analyzer helps manage power station - Case study

    A multiparameter emissions monitor at Thetford power station is being used to demonstrate to the UK Environment Agency that the plant is performing within the conditions of its environmental permit. However, the data from the analyser, which was supplied by Gasmet distributor Quantitech, also performs a vitally important role in helping to manage the plant. “Individual gas readings are ...


    By Gasmet Technologies Oy

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