Agriculture Biogas Articles

  • Animal waste categorisation

    Animal by-products (ABPs) are divided into 3 categories, based on the risks they pose. Category 1 ABPs – are classed as high risk. Carcasses and body ...

  • Manure drying tunnel doing a good job - Case Study

    Generating power from renewable energies is becoming increasingly important in Germany as well as on the international level. Thus, it is not surprising that the number of biogas plants is steadily increasing as are wind power plants and solar plants. On the agricultural sector, biogas plants are an additional source of income on many farms besides crop production and livestock husbandry. When ...


    By Big Dutchman

  • From animal manure to artificial fertilizer and clean water - Case Study

    Nijhuis Industries uses GENIAAL to convert raw manure or digestate into biobased phosphate, nitrogen and potassium fertilizer and clean water. ...


    By Nutrient Platform

  • Jezera (SLO) Agricultural Plant - Case Study

    Digester: 3.250 m³ pig manure, energy crops 1.000 kWel scope of delivery:  detailed design, agitators, input technology,  gas handling equipment, instrumentation, plant start-up Start-up: ...

  • Pfiel (A) Agricultural Plant - Case Study

    Digester: 2 x 2.000 m³ pig manure, energy crops 2 x 500 kWel scope of delivery: permit application, detailed design, tendering, project awarding, project management supervision, agitator equipment, un-pressurized gas holder, tent-roof gas holder, gas handling equipment, instrumentation Start-up: ...

  • Livorno Ferraris (ITA) Agricultural Plant - Case Study

    Digester: 2 x 3.250 m³ pig manure, energy crops 2 x 999 kWel scope of delivery:  detailed design, agitators, gas handling equipment, instrumentation, control, plant start-up Start-up: ...

  • Removal and recovery of ammonia from chicken manure

    The feasibility of the conversion of organic nitrogen available in raw chicken manure (CM) into ammonia via hydrolysis and the removal of ammonia from anaerobically digested manure were evaluated in this study. Firstly, the hydrolysis experiments were performed and the effects of temperature, total solids (TS) content and retention time were investigated. The results showed that 90% of the ...


    By IWA Publishing

  • Recovery of ammonium from digestate as fertilizer

    Ammonia inhibition can be a major problem during anaerobic digestion of manure and municipal and industrial sludges. Anaerobic digestion is sensitive to higher NH3-N concentrations, which are inhibiting and at certain levels even toxic for methanogen bacteria. The Nijhuis Ammonium Recovery (AECO-NAR) system can solve this problem and removes ammonium from digestate or other substrate for ...


    By IWA Publishing

  • Organic Fertilizer Production Process

    Organic fertilizer Production Process   Mixing original and auxiliary materials   Mixing livestock manure,biogas residue or crop stalks and ...


    By Allance

  • Editorial: Talking Turkey

    While pondering a title for this month’s Editorial, the phrase Let’s Talk Turkey popped into my head. Perhaps it is the double entendre, as in I will talk to you about our family recipe for turkey and stuffing. But in this case, I’m going with the meaning of talking turkey that is in the Dictionary of American Slang and Colloquial Expressions by Richard A. Spears: ...


    By BioCycle Magazine

  • Prokaryote community dynamics in anaerobic co-digestion of swine manure, rice straw and industrial clay residuals

    The aim of this study was to analyze the effect of the addition of rice straw and clay residuals on the prokaryote methane-producing community structure in a semi-continuously stirred tank reactor fed with swine manure. Molecular techniques, including terminal restriction fragment length polymorphism and a comparative nucleotide sequence analyses of the prokaryotic 16S rRNA genes, were ...


    By IWA Publishing

  • Unlocking the potential of poultry manure

    The poultry industry is one of the largest and fastest-growing agro-based industries in the world. At the same time, the growth brings along a number of environmental problems. One of the major environmental problems is the accumulation of large amounts of wastes, e.g. manure. In order to mitigate these problems new economically sustainable technologies are needed. Manure has often been ...


    By Ductor Corp.

  • In-situ comparison of phosphorus losses between organic and inorganic fertilizers

    Phosphorus (P) is one of the limiting factors of eutrophication. P added to soil from fertilizer application could pose a threat to water quality. According to agricultural habits, swine manure (SM), oil cake (OC), biogas slurry (BS), commercial organic fertilizer (OF) and compound fertilizer (CF) were selected to compare their P losses on a slope-land under natural rainfall. The results showed ...


    By IWA Publishing

  • Dairy Digester Opens Doors On Maryland Farm

    Kilby Inc., a 600-cow dairy operation located in Colora, Maryland, has the only operational commercial anaerobic digestion (AD) system in the state. In 2009, Kilby Inc. (the dairy farm and milk production business) began construction of a covered lagoon digester, which started operating in March 2011. The digester input consists of flushed cow manure (98% by volume) and food waste (2%), including ...


    By BioCycle Magazine

  • Lagoon treatment for manure case study

    Are you getting a scale build up in your recirculation system from your manure holding ponds (lagoons)? Is it calcium carbonate or struvite (magnesium-ammonia-phosphate) crystals? In some CAFO sites, they will use anaerobic lagoons to reduce the amount of manure that they need to treat. In a zero oxygen environment the anaerobic bacteria will take the manure which is loaded with nutrients and ...


    By Struvite Removal

  • A small plant with great success - case study

    The farm-based biogas plant operated by the Wienken family in Augustenfeld (near Löningen) is the first plant of its size built by bwe. Originally, the farm's operator had planned to install a straw heating element. However, since the input materials are available on the farm itself in their entirety, the decision to implement a biogas plant designed by bwe was obvious. One decisive aspect ...

  • Digested Dairy Manure To High-End Potting Soil

    Robert Joblin and Ted Sniegocki of Cenergy USA based in Little Rock, Arkansas, are not horticulturalists or agronomists. But they are anaerobic digester developers and when falling rates for renewable energy and the loss of the federal Investment Tax Credit grant hit at the same time, the financial models they had been using “fell down.” The need for additional revenue streams for AD ...


    By BioCycle Magazine

  • Optimization of the thermophilic anaerobic co-digestion of pig manure, agriculture waste and inorganic additive through specific methanogenic activity

    The anaerobic co-digestion of three wastes (manure, rice straw and clay residue, an inorganic additive) at different concentration levels and their interactive effects on methanogenic activity were investigated in this work at thermophilic conditions in order to enhance hydrolytic activity and methane production. A central composite design and the response surface methodology were applied for ...


    By IWA Publishing

  • Farm digester progress in Pennsylvania

    The Commonwealth of Pennsylvania is home to about 7,000 dairy farms with an average herd size of less than 100 cows. While nutrient and odor management are of great importance to these farms, their overall economic viability appears to be the primary factor driving installation of anaerobic digesters over the past few years. “Pennsylvania has 30 dairy digesters and about 5 swine digesters ...


    By BioCycle Magazine

  • Green technologies and business practices: a study on rural microenterprises in PURA scheme villages of Thanjavur District, Tamil Nadu, India

    This paper present the study that was carried out in the PURA scheme villages of Thanjavur District, India. The investigation was to determine the impact of education on green technologies and business practice among the villagers, who deals with micro–enterprises. The data were collected from PURA villages that consist of seven clusters. Each cluster has been allocated an activity that yield ...


    By Inderscience Publishers

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