Results 151 to 160 of about 461,225 (394)

Hydrogen from Biogas: Dynamic Modeling of an Integrated Shift Reactor

open access: yesChemie Ingenieur Technik, EarlyView.
A dynamic, two‐dimensional shift reactor model for the production of hydrogen from biogas is presented. This shift reactor enables the preheating of the biogas feed and, in parallel, reduces fixed‐bed temperatures, resulting in increased hydrogen yields. The model is validated with measurement data from a pilot biogas steam reforming plant.
Edwin Hirtreiter   +5 more
wiley   +1 more source

Mitigating Greenhouse Gas and Ammonia Emissions from Swine Manure Management: A System Analysis.

open access: yesEnvironmental Science and Technology, 2017
Gaseous emissions from animal manure are considerable contributor to global ammonia (NH3) and agriculture greenhouse gas (GHG) emissions. Given the demand to promote mitigation of GHGs while fostering sustainable development of the Paris Agreement, an ...
Yue Wang   +8 more
semanticscholar   +1 more source

SOIL PHYSICAL PROPERTIES AND PRODUCTION OF UPLAND ULTISOL SOIL AS INFLUENCED BY MANURE APPLICATION AND P FERTILIZATION

open access: yesAGRIVITA Journal of Agricultural Science, 2012
Acid upland soil in Indonesia has a great potential for agricultural development but the soil physical properties have been degraded. The use of manure and direct application of Gresik phosphate rock (PR) was an alternative to improve land productivity ...
Yoyo Soelaeman, Umi Haryati
doaj  

Ecologic and Economic Evaluation of Combined Methanol Synthesis from CO2 and Biotechnological Upgrading to Value Products. Part 1: Environmental Impact

open access: yesChemie Ingenieur Technik, EarlyView.
The combination of methanol synthesis and biotechnological upgrading to value‐added products still faces some challenges in order to achieve a positive environmental impact and thus the goal of synergetic development of biotechnological and chemical processes.
Mehran Taherkhani   +3 more
wiley   +1 more source

Linking Farm and Market Models to Analyse the Effects of the EU Nitrate Directive for the Dutch Agricultural Sector [PDF]

open access: yes
This paper presents a modeling system that can be used to analyze the trade off between economy and environment. It takes into account manure policy, farm structure and manure surpluses at farm level as well as the economic effects of manure surpluses at
Helming, John F.M.   +3 more
core   +1 more source

Response of Sunflower Yield and Phytohormonal Changes to Azotobacter,Azospirillum,Pseudomonas and Animal Manure in a Chemical Free Agroecosystem [PDF]

open access: yes, 2011
There are new trends in agriculture to move toward the low input systems with the lower application of chemical fertilizers. To reach this goal, different methods, such as the application of biofertilizers, may be used.
Hamid, Madani   +5 more
core  

16S rRNA analysis of diversity of manure microbial community in dairy farm environment

open access: yesPLoS ONE, 2018
Dairy farms generate a considerable amount of manure, which is applied in cropland as fertilizer. While the use of manure as fertilizer reduces the application of chemical fertilizers, the main concern with regards to manure application is microbial ...
P. Pandey   +9 more
semanticscholar   +1 more source

Corn cob pyrolysis: A systematic literature review of methods and applications

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Mapping the research landscape of corn cob pyrolysis. Abstractas The agricultural sector is experiencing a surge in waste generation due to population growth, creating an urgent need to convert byproducts into value‐added products. Maize (Zea mays L.), a leading global crop, produces significant byproducts, such as corn cob, which are often undervalued.
Vilmar Steffen   +5 more
wiley   +1 more source

Development of a Manure Spreader

open access: yesARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, 2007
A manure spreader was designed, constructed and evaluated.  Cow dung collected from abattoirs was composted and used to test the machine in the field.  Bulk density, moisture content, angle of repose and coefficient of friction of the composted dung were determined and found to be 791.9 kgm-3, 44%, 420 and 0.88 respectively.  The ...
Adgidzi, D, Balami, A A, Bashir, M
openaire   +3 more sources

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