anaerobic digestion processes Articles

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Manure Spills: Prevention, Detection, Control Options, & the Role of Anaerobic Digesters

by BIOFerm™ Energy Systems  (Aug. 27, 2014)

An internet search for manure-related spills can lead to an exhausting list of news articles and images of catastrophic environmental damage. In Wisconsin alone, the ...

Manure Spills: Prevention, Detection, Control Options, and the Role of Anaerobic Digesters

by BIOFerm™ Energy Systems  (Aug. 27, 2014)

Manure Spills: Prevention, Detection, Control Options, and the Role of Anaerobic Digesters FOR IMMEDIATE RELEASE By Steven Sell, Biologist & Application Engineer Wednesdays August 27, 2014 ...

Wastes as fertilizer – Is this a way to lower food costs?

by GLOBE Foundation  (Aug. 30, 2014)

Researchers in the UK think they may have found a way to produce fertilizers that should cut farmers’ costs and at the same time boost some types of renewable energy. Their scheme, which involves using waste material from anaerobic digesters and ash from burnt biomass, would also cut fossil fuel use and save natural resources. ...

Thermophilic anaerobic digestion of sewage sludge with high solids content

by IWA Publishing  (May 7, 2014)

The treatment performance of thermophilic anaerobic digestion (AD) of sewage sludge with high solids content was investigated with two laboratory-scale thermophilic anaerobic reactors (R1 and R2) with a feeding of pre-centrifuged sewage sludge. Reactor R1 was fed with sludge of 3.7% total solids (TS). The volatile solids (VS) removal ratio ...

Vacuum evaporation treatment of digestate: full exploitation of cogeneration heat to process the whole digestate production

by IWA Publishing  (Aug. 7, 2014)

Vacuum evaporation represents an interesting and innovative solution for managing animal waste surpluses in areas with high livestock density. To reduce operational costs, a key factor is the availability of an inexpensive source of heat, such as that coming from an anaerobic digestion (AD) plant. The aim of this study was to test vacuum ...

Idex Environnement’s Biogas plant at Amiens

by Clarke Energy  (Jul. 30, 2014)

The Anaerobic Digestion (AD) plant in Amiens is operated by Idex Environment. The biogas is derived from the municipal solid waste (MSW) originating from the local area. Clarke Energy has delivered a full turnkey installation for this site, creating renewable energy. The engines supplied for this project are two JGMC ...

Improving products of anaerobic sludge digestion by microaeration

by IWA Publishing  (Feb. 26, 2014)

Biogas, digested sludge and sludge liquor are the main products of anaerobic sludge digestion. Each of the products is influenced significantly by specific conditions of the digestion process. Therefore, any upgrade of the digestion technology must be considered with regard to quality changes in all products. Microaeration is one of the methods ...

PE-Recycling at its very best

by WEIMA Maschinenbau GmbH  (Aug. 5, 2014)

The Pipelife Group is a leading manufacturer of plastic pipe systems in Europe. The company's flagship products are created at its Stathelle facility in Norway, where PE pipeline pipes hundreds of meters long and up to 2.50 meters in diameter are produced for use throughout the world. Since the beginning of this year, production waste that ...

Improving nutrient fixation and dry matter content of an ammonium-rich anaerobic digestion effluent by struvite formation and clay adsorption

by IWA Publishing  (Jul. 23, 2014)

The anaerobic digestion (AD) of organic wastes that contain nitrogen leads to its mineralization, yielding a digestate rich in ammonium (NH4+), an important fertilizing nutrient. The applicability of AD digestate as fertilizer can be improved by fixating the nutrients and increasing its dry matter content. Methods for the fixation and ...

Anaerobic Digestion—What Are the Economics?

by Waste Advantage Magazine  (Jul. 1, 2014)

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 ...

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