off-gas Articles

  • Why are we monitoring nutrients at different depths?

    Recently, LG Sonic introduced the MPC-Lab, an innovative monitoring buoy that can monitor algae, physico-chemical variables, and even nutrients such as nitrogen and phosphorus in near real-time and at different depths in a body of water. Combined with our other monitoring tools, this system offers a unique way to detect the spatial and temporal patterns of nutrient concentrations which play a ...


    By LG Sonic

  • Repurposing Composting Infrastructure

    A Vermont solid waste district utilized a defunct biosolids composting site to create capacity for processing food waste. The Vermont legislature instituted a progressive ban on organics in landfills via Act 148 in 2012. The Act includes the provision that transfer stations/drop-off facilities must accept food scraps by July 1, 2017. The Lamoille Regional Solid Waste Management District (LRSWMD) ...


    By BioCycle Magazine

  • Ataköy WWTP Project Turkiye - Case Study

    Customer: WTE (Germany) Project Name: Ataköy WWTP Capacity: 400.000 m³/ d Manufacturing year: 2008 Scope of supply ...


    By ASTIM A.S.

  • Air Emissions/Off-Gas Treatment

    A number of technologies have been widely applied for removal of VOCs from off-gas streams. However, the application of these technologies to off-gases from site remediation may be quite limited. Biofiltration has been widely applied for VOC destruction in Europe and Japan, but it has only recently been used in the United States. Catalytic and thermal oxidation are widely used for the destruction ...

  • Landfill Off-Gas Collection and Treatment Systems

    Purpose This engineering technical letter (ETL) was written to provide guidance for designers to determine appropriate application of Landfill Off-Gas Collection and Treatment Systems, and to properly design and specify these systems. Applicability This ETL applies to all HQUSACE elements, major subordinate commands (MSC) , districts, laboratories, and field ...


  • Off-Gas Treatment Technologies for Soil Vapor Extraction Systems: State of the Practice

    Untitled Document EXECUTIVE SUMMARY This document provides state-of-the-practice information on off-gas treatment technologies for soil vapor extraction ...

  • Measuring hydrogen off-gas in nuclear reactor - Case Study

    Nuclear reactor coolant removal monitored by hydrogen measurements provided by Systech's 542 programmable gas analyzers NNC Limited is using Systech's 542 programmable gas analyzers to monitor hydrogen off-gas in test rig for Dounreay Fast Breeder Reactor decommissioning. Decommissioning nuclear reactors is not only a matter ...


    By Systech Instruments Ltd

  • Using Air Strippers for Off-gas Treatment - Case Study

    Two pharmaceutical plants in Puerto Rico used large sequencing batch reactor (SBR) systems to treat their wastewater. The primary treatment was an aerobic bio breakdown of the waste. The were forced to change their treament process because of change in treatment regulations. The new regulations required them to treat off-gas that was coming from the SBRs. They were faced with installing a very ...

  • Detailed off-gas measurements for improved modelling of the aeration performance at the WWTP of Eindhoven

    At wastewater treatment plants (WWTPs), the aerobic conversion processes in the bioreactor are driven by the presence of dissolved oxygen (DO). Within these conversion processes, the oxygen transfer is a rate limiting step as well as being the largest energy consumer. Despite this high importance, WWTP models often lack detail on the aeration part. An extensive measurement campaign with ...


    By IWA Publishing

  • Synthesis of tetrakis (hydroxymethyl) phosphonium chloride by high-concentration phosphine in industrial off-gas

    With increasing consumption of phosphate rock and acceleration of global phosphate production, the shortage of phosphate resources is increasing with the development and utilization of phosphate. China's Ministry of Land and Resources has classified phosphate as a mineral that cannot meet China's growing demand for phosphate rock in 2010. The phosphorus chemical industry is one of ...


    By IWA Publishing

  • Oxygen-induced dynamics of nitrous oxide in water and off-gas during the treatment of digester supernatant

    Nitrous oxide (N2O) is a potent greenhouse gas and of special concern in wastewater treatment. It is formed in biological wastewater treatment under both aerobic and anaerobic conditions. A major reason for high N2O emissions is low oxygen concentration during nitrification. In this full-scale study of N2O emissions from a sequencing batch reactor for treating digester ...


    By IWA Publishing

  • Clean air ensured – Off gas monitoring in mineral wool production – Case Study

    The customer The customer is one of the world’s leading producers of mineral wool – a material that improves the quality of life for millions of people and helps to alleviate environmental problems, such as the greenhouse effect, smog and acid rain. Mineral wool insulation gives us pleasant indoor environments by keeping out the freezing cold. In hot climates, stone wool ...

  • Maxsys Fuel System helps Scott Bader let off steam with 5.7% Gas Savings

    Resin and polymer manufacturer Scott Bader says it has been a socially responsible corporation long before the term was popularised. To this end the company has ambitious energy consumption reduction targets. Helping them to meet this, is the fuel pre-treatment system from Maxsys, which is delivering impressive gas savings in excess of 5.7% on Scott Bader’s steam raising boiler plant ...


    By Maxsys Fuel Systems Ltd

  • Taking the pressure off desalination

    California-based PAX Pure hopes to offer a new solution to water scarcity with its groundbreaking water purification tool. Developed by Jay Harman and Tom Gielda, PAX Pure technology desalinates and demineralizes water without membranes, moving parts or chemicals. Instead, the technology simply mimics high-altitude conditions. The big challenge with conventional ...


    By Ensia

  • Is composite recycling preparing for take-off?

    As part of a bid to take ever-greater responsibility for end-of-life airplanes, major manufacturer Boeing, among other companies, has stepped up to the challenge of recycling composite materials. In this article, Recycling International takes a look at what is a fascinating but highly-specialised ...


    By Recycling International

  • Excavation, Retrieval, and Off-Site Disposal

    Introduction: Contaminated material is removed and transported to permitted off-site treatment and/or disposal facilities. Some pretreatment of the contaminated media usually is required in order to meet land disposal restrictions. Confined disposal facilities (CDFs) are engineered structure enclosed by dikes and designed to retain dredged materials. A CDF may have a large cell for ...

  • Will you be switching off your lights?

    Join CoirGreen and millions around the world this Saturday, 28th March, as we turn off our lights from 2030 - 2130 to mark Earth Hour 2015. Earth Hour sweeps across 24 time zones and six continents. Organised by WWF, Earth Hour, brings together millions every year, in a symbolic lights out display to show they care for our planet and its future. With climate change continuing to challenge not ...


    By CoirGreen

  • Getting Meetings Off to a Good Start

    What is the most important thing to do in starting a meeting? Go over the ground rules for the meeting? Introduce people if they don't know each other? Review the agenda? Not really. These, in a sense, are facilitator tools for getting people working. In front of these is a need to get people motivated to do the work. People typically want to ...

  • Technical basis for off-site emergency planning in France

    Past experiences from nuclear accidents have clearly shown the importance of being prepared to manage these situations from public information to implementation of protective actions. This paper summarises the criteria used as a basis for off-site emergency planning and preparedness in France. The emergency response organisation, the general organisational scheme of actions, criteria for ...


    By Inderscience Publishers

  • Case study - SAIPEM off shore dredging

    Location: Baku, Azerbaijan Year: 2007 Off shore platform Working context Petroleum fixed steel platforms are used to extract petroleum from the bottom of the sea. The problem Remove sand and silt around the platform jacket. An application for deep sea and high depth dredging. Working depth: ...


    By Dragflow S.r.l.

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