anaerobic digestion plant Articles
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React Environmental use GA3000 to measure methane - Case Study
The company uses Geotech’s GA3000 (now superseded by GA3000 PLUS) fixed biogas analyser to monitor methane, carbon dioxide, oxygen and hydrogen sulphide. React’s anaerobic digestion plant incorporates a patented separated hydrolysis system that converts organic material into renewable energy. This is an important evolution in the principal biological process which is common to ...
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Is Anaerobic Digestion Profitable?
In the dairy industry, the production of biogas can be profitable, even for small farms Dairy farms must deal with wastewater that’s particularly high in organic matter and that can be challenging to deal with. However, establishing an on-farm anaerobic digestion plant that generates biogas from cattle slurry offers several benefits: It captures methane and converts it into a renewable ...
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Foaming during anaerobic digestion: Causes and Solutions
Foaming during sludge treatment has traditionally been associated with activated sludge systems which have been victim to this phenomenon for several decades. However, foaming has been documented in anaerobic digestion plants, leading, fundamentally, to a reduction in digester capacity and an increase in operational expenditure. The requirements for foaming of: surface active agents, gaseous ...
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Waste treatment Wernsing Anaerobic Digestion Plant (Germany)
Wernsing biogas plant Addrup The Wernsing biogas plant was one of the first biogas weser-ems plants to treat waste from food industry since its commission in 2001. Up to 200 tonnes of white cabbage and potatoes waste are used as main input material per day. In addition to the biogas plant, the facilities owned by the Wernsing group include a waste water treatment plant to treat the sewage ...
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GA3000 fixed biogas analysis system at Harper Adams case study
About the customer Harper Adams Energy in Shropshire, England, is responsible for running the anaerobic digestion plant at Harper Adams University College. The challenges the customer faced Plant manager, James Wood, wanted to monitor biogas composition automatically 24 hours a day, seven days a week. He wanted his own independent analysis of the gas mix and to record it in detail, especially ...
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Measuring methane at the UK`s first viable compact anaerobic digester plant
At the UK's first viable compact anaerobic digester (AD) plant aimed at local food waste treatment, a Geotech GA3000 fixed biogas analyser monitors methane (CH4), carbon dioxide (CO2), oxygen (O2) and hydrogen sulphide (H2S). The plant, a modular scalable AD system, unveiled by React Environmental in July 2012 at Llangadog, Carmarthenshire, can handle some 1,000 to 5,000 tonnes of food waste a ...
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Methane conversion efficiency as a simple control parameter for an anaerobic digester at high loading rates
The anaerobic digestion process is globally applied to the treatment of highly concentrated wastes such as industrial and rural effluents, and sewage sludge. However, it is known to be relatively unstable. When loaded with high concentrations of organic material, unwanted volatile fatty acids (VFA) are often produced rather than methane (CH4) gas which can lead to digester acidification and ...
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Use of an elemental balance over primary and secondary anaerobic digestion of sewage sludge to determine its carbon impact
This paper details how a mass balance, which was conducted for all of United Utilities’ anaerobic digestion plants, was used to calculate emission factors for various types of anaerobic digestion processes to enable calculation their carbon footprint. The mass balance showed average volatile solids destruction rates of 45% and 11% over primary and secondary digestion respectively. The calculated ...
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Environmental efficiency of composting versus anaerobic digestion of separately collected, organic waste
Environmental policy in the Netherlands among others aims at closing material cycles and minimising the amount of waste requiring final disposal. In this policy the highest priority is given to the prevention of waste production followed by (in descending order of preference) reuse, incineration with energy recovery and sanitary landfilling. In the implementation of this solid waste policy also ...
By ORBIT e.V.
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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 ...
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Monitoring food slurry and Water dosing - Case study
A manufacturer of waste food de-packers is using Siemens MAG 5100 W magnetic flow meters to monitor both dosing water and food slurry Collected food waste from food manufacturers or retailers and domestically generated food waste includes a proportion of packaging waste such as paper, card, cans and glass. More Information The presence of packaging materials is a problem if using food slurry ...
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GA3000 PLUS fixed biogas analysis system at Harper Adams - Case Study
Plant manager, James Wood, wanted to monitor biogas composition automatically 24 hours a day, seven days a week. He wanted his own independent analysis of the gas mix and to record it in detail, especially the percentage of methane, hydrogen sulphide and carbon dioxide. How the company uses the GA3000 PLUS product James said: “We want our own gas analysis record of the biogas quality we ...
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Doosan moves to site scale plant trials of its sonix feedstock pre-treatment system for anaerobic digestion
Doosan Enpure is one of the 4 R&D centres of excellence of worldwide Doosan Water Business Group specialising in waste treatment and renewable energy technologies. Doosan actively invests in its waste and renewable energy related research and development activities to create and launch needs-driven technologies that will introduce innovative solutions to the worldwide waste and renewable ...
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Waste-to-Energy Solution for a Pharmaceutical Company
Project: Sandoz Industrial Products S.p.A. - Novartis Group Location: Rovereto (TN), Italia Capacity: 768 m3/day Solution: Anaerobic Digestion plant and Biogas desulphurizer Background Sandoz, the generic pharmaceuticals division of Novartis, has a history spanning more than 120 years and is a worldwide, trusted leader in generics. Its strategic and customer-focused approach to develop, ...
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Anaerobic Digestion—What Are the Economics?
Although solid waste AD facilities are just starting to emerge, haulers and their customers may see some benefits if the development trend continues. A Pro Forma Model objective can be constructed for strategic planning of an anaerobic digestion facility. Anaerobic digestion (AD) of food wastes in the U.S. is a developing market that is poised for continued growth in many regions. Although solid ...
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Static gas analyser at United Utilities case study
About the customer United Utilities, Lancaster, England Equipment GA3000 Location United Kingdom Customer United Utilities Requirement The customer required its own precise, detailed and accurate recording of the concentrations of methane (CH4), carbon dioxide (CO2) and hydrogen sulphode (H2S) that it sends to its two CHP engines. Dave Bega, Installation and Commissioning Manager for GCA ...
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Biogas monitoring for upgraded biomethane - Case Study
By working with partners worldwide, Geotech is involved in a range of projects at the cutting edge of biogas production and processing. The latest of these is a landmark deal agreed between Marks & Spencer (M&S) and Future Biogas, a major anaerobic digestion plant operator, for the purchase of biomethane certificates. The deal sees M&S purchase 35,000 Mega-Watt hours (MWh) of ...
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Digester temperature - to heat or to cool?
Maintaining an optimal digester temperature is a key aspect of maximising biogas production and overall process efficiency in anaerobic digestion. Not only is temperature essential to maintain a healthy colony of bacteria, but it can reduce retention times and improve material circulation – thereby helping to increase the production capacity of the whole process. In terms of temperature ...
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Monterey Regional Waste Management District - Case Study
Under a long-term agreement, Zero Waste Energy (ZWE) partnered with Monterey Regional Waste Management District (MRWMD) to design and build the first U.S. based anaerobic digestion (AD) SMARTFERM plant. ZWE operates the facility, which includes four AD digesters used to convert up to 5,000 tons per year (TPY) of organic waste into biogas that will provide power and heat for MRWMD’s use and ...
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Adding Value With Anaerobic Digestion
Adding waste-to-energy technology to wastewater treatment produces energy that can be used to power operations Anaerobic digestion (AD) is a biological process that uses microbes to biodegrade organic matter (feedstock) in the absence of oxygen. It provides a host of benefits in the treatment of challenging wastewater streams while offering the opportunity to produce value in the process. ...
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