process emissions Articles

  • Operating Principle of an Oxygen Monitor

    The oxygen concentration in the flue gas of a combustion process such as that of a power plant or a waste incinerator gives a good indication of the efficiency of the combustion process. The parameter is therefore of great interest to optimize fuel economy, but also to control and reduce emissions of air pollutants. An ideal combustion process only results in CO2 and water, but ...


    By Opsis AB

  • Process & Emissions Optimization - Case study

    There are many locations that should be measured and monitored with a portable emissions analyzer to maximize product quality, combustion efficiency, safety, and emissions reduction in a cement plant including the following: Rotary Kiln gas outlet O2, CO, NOx, CO2, SO2, CxHy, temperature ...

  • Case study - Destruction of inert process emissions

    Many chemical companies use batch reactors to make their products.  These reactors typically have vents which are opened and closed during emptying, filling, mixing, heating or cooling and other steps of the production process.  The gases coming from these vents must be controlled under most government regulations.  Generally speaking, the emissions produced are inert (little or no ...

  • Thermodynamic efficiencies and GHG emissions of alternative desalination processes

    Three alternative approaches to desalinating seawater were evaluated with respect to their thermodynamic efficiencies and greenhouse-gas emissions. The technologies considered were multistage flash distillation (MSF), reverse osmosis (RO), and membrane distillation (MD). The analysis was based on published stream data from large-scale operational MSF and RO facilities and experimental-scale data ...


    By IWA Publishing

  • Controlling Pharmaceutical Coating & Drying Process Emissions

    Capturing and destroying harmful emissions from pharmaceutical processes can be challenging. It’s not because the volatile organic compounds (VOCs) are difficult to destroy using catalytic or thermal techniques. It’s because their concentrations can be so high. These process streams raise safety concerns, both when they’re collected in vents and when they reach the final ...

  • Effect of carbon sources on nitrous oxide emission in a modified Ludzak Ettinger process

    Effect of methanol and glycerol on nitrous oxide (N2O) emission in two laboratory-scale modified Ludzak Ettinger (MLE) processes was investigated during three distinct periods: dissolved oxygen (DO) control by intermittent aeration with a DO controller, and high and low aeration rates. N2O consumption rate in an anoxic tank and aeration mode influenced N2O emission rates from ...


    By IWA Publishing

  • Nitrous oxide emissions from one-step partial nitritation/anammox processes

    Measurements of nitrous oxide were made at pilot- and full-scale plants to evaluate greenhouse gas emissions from one-step partial nitritation/anammox processes applied in moving bed biofilm reactors treating reject water. It was found that 0.51–1.29% and 0.35–1.33% of the total nitrogen loads in the pilot- and full-scale reactor, respectively, were emitted as nitrous oxide. Between 80 and 90% ...


    By IWA Publishing

  • Wastewater treatment process impact on energy savings and greenhouse gas emissions

    The objective of this research was to assess the energy consumption of wastewater treatment plants (WWTPs), to apply a mathematical model to evaluate their carbon footprint, and to propose energy saving strategies that can be implemented to reduce both energy consumption and greenhouse gas (GHG) emissions in Greece. The survey was focused on 10 WWTPs in Greece with a treatment capacity ranging ...


    By IWA Publishing

  • Modeling Greenhouse Gas Emissions From Activated Sludge Processes

    Dynamic simulation of activated sludge process is a common tool for wastewater treatment design and optimization. Most activated sludge models predict only the uptake of BOD and nutrients, however, they can easily be supplemented with further information regarding greenhouse gas (GHG) production to predict the generation of components such as CO2. Many published anaerobic digestion models contain ...

  • Emission Control Strategies and Technologies for the Chemical Processing Industry: An interview with Chris Anguil

    AC: Could you please provide our readers with a brief introduction to the industries that Anguil Environmental works within? CA: Our thermal and catalytic oxidizer systems are applied on any industrial process that is regulated for Volatile Organic Compounds (VOCs), Hazardous Air Pollutants (HAPs) or Nitrogen Oxides (NOX). Some of these industries include chemical ...

  • Separate determination of PM10 emission factors of road traffic for tailpipe emissions and emissions from abrasion and resuspension processes

    Little is known about the relevance of mechanically produced particles of road traffic from abrasion and resuspension processes in relation to the exhaust pipe particles. In this paper, emission factors of PM10 and PM1 for light and heavy-duty vehicles were derived for different representative traffic regimes from concentration differences of particles and nitrogen ...


    By Inderscience Publishers

  • Reducing Odor and VOC Emissions

    The Montgomery County Regional Composting Facility (MCRCF) in Silver Spring, Maryland is designed to process 400 wet tons/day of lime amended biosolids from the Blue Plains Wastewater Treatment Plant (WWTP) in Washington, D.C. Recently, political pressures forced operations to cease at the MCRCF. Although the aerated static pile composting plant’s fate has not been completely decided, its owner, ...


    By BioCycle Magazine

  • Overview of Emission Control Technologies

    Chapter 8. Emission Control Technology 8.4 Thermal Oxidation 8.4.1 INTRODUCTION The objective of this section is to present various VOC thermal oxidation technologies, their strength and weaknesses and the elements required to determine what is the preferred technology for a given application. In 1970 the environmental authorities started to identify various industries which had ...

  • Low emission combustion of Oilgas

    Type     HOFGAS®- IFM4c/2300/150 Commissioning     June 2001 Site     Cistierna (ES) Situation Enervisa SA in Cistierna own a plant for the recycling of old oils. The oil is evaporated and condensed into high-grade fuel. The reclaimed fuel is used in diesel engines for production of electricity as well as in burners for the ...


    By Hofstetter BV

  • Interpreting the IPCC emissions scenarios

    This paper discusses how two sets of emissions scenarios, generated using the Atmospheric Stabilization Framework, were used by the United Nations Intergovernmental Panel on Climate Change (IPCC). In particular, it discusses how the scenarios were specified, what roles models played in developing the scenarios, and how the scenarios were interpreted by participants in the IPCC process. It draws ...


    By Inderscience Publishers

  • A constant eye on emissions

    Due to increasingly rigorous requirements for regulatory and permit compliance, organisations are seeking more from all compliance support systems. The ability to expand systems to encompass new, or migrate existing, regulatory calculations used to monitor environmental performance is vital. Planning strategically for a scalable and sustainable system has been shown to reduce overall compliance ...


    By Wood Group Mustang, Inc.

  • Effective control of fugitive emissions

    Are you Building a brand new process and want to get through the permit process quickly? Looking for ways to further reduce emissions? Under an order from U.S. Environmental Protection Agency (EPA) to further reduce emissions? With EPA continually pressuring industry to reduce emissions, control of fugitives is increasingly important to your overall emissions ...

  • Making money by reducing emissions

    Efforts to reduce emissions are really about changing companies' behavior. Pressure on companies from various activist groups combined with daily headlines in national and international media are driving various agendas among federal, state and local regulators. The current financial crisis does not appear to have lessened this pressure, rather the opposite. Compliance is now a must; ...


    By VisionMonitor Software, LLC

  • Peatlands: hotspots for emissions reductions

    Peatlands play a critical role in climate regulation, storing twice as much carbon as the entire world’s forest biomass and emitting large amounts of carbon when drained. Peat carbon stocks are distributed worldwide. The mitigation potential is very significant, but possible future possible emissions as well if no rapid action is taken to protect and restore them. The UNFCCC provides ...


    By Wetlands International

  • Emissions reduction with Diesel blending

    Diesel technologies are develops by huge rates. Modification of cars with diesel engines make a half of the new cars sold in Europe. The black smoke, noisy engine operation and unpleasant smell remained far in the past. Today diesel engines present not only profitability, but also high capacity and worthy dynamic characteristics. Quality of fuel also is changed. The modern diesel blending has ...

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