anaerobic digestion gas Articles

  • Landfill Gas Clean-up and Upgrading to Hydrogen System

    Quadrogen has extensive knowledge of and experience in biogas and landfill gas clean-up systems technology, design and development. Quadrogen’s Integrated Biogas Clean-up System will remove all sulfur species, siloxanes, chlorides, water, oxygen and other impurities from biogas to the parts per billion level required for reliable and long term operation. Quadrogen also has extensive ...


    By Pioneer Air Systems

  • Geotech webinar: Tapping into New Power Capacity from Anaerobic Digestion - Case Study

    Geotech, the market leading supplier of anaerobic digestion gas monitoring equipment in the UK will be hosting a webinar titled ‘Tapping into New Power Capacity from Anaerobic Digestion’ in collaboration with the Institute of Chemical Engineers’ (IChemE) Water Special Interest Group on Thursday, 8th December 2016 at 09:00-10:00 GMT. ...

  • Producing biogas from solid wastes – Case Study

    Santa Cruz Wastewater Treatment Facility, located in Santa Cruz, California, generates the majority of its own electric power by using internal combustion engines that burn a mixture of methane gas produced by the sewage digestion process and purchased natural gas. Combined, they producing 7.4 million kWh of electric power per year. Producing abundant, healthy amounts of biogas each day in their ...


    By Sierra Instruments, Inc.

  • Velocity gradient as a tool to characterise the link between mixing and biogas production in anaerobic waste digesters

    Whilst the importance of mixing in anaerobic digesters to enhance process performance and gas production is well recognised, the specific effects of mixing regime on biogas production are not clear. Here, the velocity gradient is used to demonstrate the importance of minimally mixed zones in a digester, with computational fluid dynamics (CFD) models indicating that 20–85% of a ...


    By IWA Publishing

  • Application of LCA to support solid waste management policy in Phuket

    Life Cycle Assessment (LCA) is employed to evaluate the environmental performance of the existing Municipal Solid Waste (MSW) management system in Phuket and compared with different possible alternative Integrated Waste Management Systems (IWMSs). The results show that the scenario comprising source separation of waste for anaerobic digestion and recycling plus incineration (with energy recovery) ...


    By Inderscience Publishers

  • Thermal Mass Flow Meters Improve Efficiency in Wastewater Treatment Plants

    Every municipality throughout the country has a wastewater treatment plant to safely treat water that enters back into our environment. This doesn’t mean they are immune to problems. One of the biggest problems for US wastewater treatment plants is the aging infrastructure with an estimated 180 billion dollars needed to repair many wastewater plants. A close second is the energy needed to ...


    By Sierra Instruments, Inc.

  • Advanced Digestion Plant at Bran Sands design and construct experiences

    Abstract In June 2007 Northumbrian Water awarded a design and construct contract to Aker Solutions for a new advanced digestion (AD) plant at their Bran Sands site on Teesside. Following laboratory trials, advanced digestion via thermal hydrolysis was identified as the preferred treatment process for the upgrade of Bran Sands Regional Sludge Treatment Centre (RSTC). The plant will treat ...


    By Cambi Group AS

  • Bio-fuels- Anaerobic digestion

    Anaerobic digestion is a series of processes in which micro organisms break down biodegradable material in the absence of oxygen. It is widely used to treat wastewater sludges and organic (agricultural) wastes.  As part of an integrated waste management system, anaerobic digestion reduces the emission of gas into the atmosphere. Anaerobic digestion is a renewable energy source because the ...


    By Triangle Ltd

  • Monitoring sewage sludge AD for Southern Water - Case Study

    To check sludge AD, Southern Water uses portable biogas analysers specially developed for AD biogas and based on proven methane and associated gas analysis equipment from Geotech. Southern Water has an important routine; every single day it checks the health of its sewage sludge anaerobic digesters on eighteen sites across Hampshire, IoW, Sussex and Kent. There, each day Southern Water ...

  • Thermal protection - WWTF gets ahead of the curve with thermal mass flowmeters

    For the Santa Cruz Wastewater Treatment Facility (WWTF), dependability matters. Since 1989, this state-of-the-art WWTF, nestled in a shallow canyon in the coastal city of Santa Cruz, Calif., has been leading the way for renewable energy programs and environmental protection in the West. Santa Cruz WWTF generates its own electric power by using internal combustion engines that burn a mixture of ...


    By Sierra Instruments, Inc.

  • Solid thickening and methane production of livestock wastewater using dissolved carbon dioxide flotation

    Dilute manure is classified as wastewater due to the large quantity of water used in livestock production in Korea. Livestock wastewater treatment is required in order to reduce high moisture content and treat fluids discharged from the digestion process. In livestock wastewater treatment plants, large quantities of CO2 gas are produced at combined heat and power facilities as well as in the ...


    By IWA Publishing

  • Organic waste biodegradability test bio methane potential method

    Management Summary The biogas production from a mixture of food waste, garden waste, paper, napkins, plastic, metals and glass and anaerobically digested sludge was monitored until gas production had ceased. The homogenised biowaste mixture was subjected to two pre-treatment methods prior to being fed to the BMP reactors, these were: pasteurisation at 70oC ...


    By Cambi Group AS

  • Enhancement of hydrogen production from Kitchen Waste using heat treated anaerobic biogas plant slurry with pH control

    Hydrogen is found to be a clean energy source; biohydrogen has been researched in recent years. Anaerobic Digestion of Kitchen Waste (KW) for hydrogen production was performed in lab scale reactors, using heat-treated anaerobically digested biogas plant slurry. The biogas plant slurry was given heat treatment at varying temperatures ranging from 70 to 100 ° C for 15 min. Enhancement of hydrogen ...


    By Inderscience Publishers

  • Anaerobic Digester Mixing Modifications Ease Rising Natural Gas Prices

    By modifying the process used to thicken incoming raw and waste activated sludge to the City of Massillon’s anaerobic digesters and through the establishment of proper mixing and heating of the digester contents, the City has benefited by reducing their natural gas consumption for which the average cost of natural gas has increased 275 percent from 2003 to 2006. These modifications have resulted ...

  • Degradation characteristics of polylactide in thermophilic anaerobic digestion with hyperthermophilic solubilization condition

    To test whether hyperthermophilic treatment promotes polylactide (PLA) dissolution and methane conversion under anaerobic digestion conditions, a single thermophilic control reactor (55 °C) and a two-phase system consisting of a hyperthermophilic reactor (80 °C) and a thermophilic reactor (55 °C) were continuously fed with a mixture of PLA and artificial kitchen garbage. In Runs 1 and 2, the PLA ...


    By IWA Publishing

  • Laboratory-scale anaerobic sequencing batch reactor for treatment of stillage from fruit distillation

    This work describes batch anaerobic digestion tests carried out on stillages, the residue of the distillation process on fruit, in order to contribute to the setting of design parameters for a planned plant. The experimental apparatus was characterized by three reactors, each with a useful volume of 5 L. The different phases of the work carried out were: determining the basic components of the ...


    By IWA Publishing

  • Biogen food waste anaerobic digestion plant, St Asaph - Case Study

    Biogen provides an integrated food waste management solution for supermarkets, caterers, pubs, hotels, food manufacturers and local authorities across the UK. Biogen’s plant at Waen, St Asaph in Wales processes waste from a variety of county’s such as Conwy, Swansea, Denbighshire and Flintshire. The anaerobic digestion (AD) plant processes 22,500 tonnes of food waste per year which ...


    By Clarke Energy

  • Blending anaerobic co-digestates: synergism and economics

    Co-digestion is the process in which wastes from various sources are treated together. Therefore, more organic carbon is added to make efficient use of existing digesters. The objectives of this study were to compare potential co-digestates, determine synergistic and antagonistic co-digestion outcomes and estimate economic benefits for preliminary screening. Over 80 wastes were identified from 54 ...


    By IWA Publishing

  • Benchmarking energy consumption in municipal wastewater treatment plants in Japan

    Reduction of greenhouse gas (GHG) emissions is one of the most important tasks facing municipal WWTPs. Electric power consumption typically accounts for about 90% of the total energy consumption. This study presents a benchmarking analysis of electric power consumption. The specific power consumption (SPC) ranged from 0.44 to 2.07 kWh/m3 for oxidation ditch plants and from 0.30 to 1.89 kWh/m3 for ...


    By IWA Publishing

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