A5027744193- Odor and Emission Control Technologies
- Anaerobic Digestion and Biogas Production
- Wastewater Treatment and Nitrogen Removal
- Soil and Water Nutrient Dynamics
- Agriculture Sustainability and Environmental Impact
- Soil Carbon and Nitrogen Dynamics
- Phosphorus and nutrient management
- Vehicle emissions and performance
- Ruminant Nutrition and Digestive Physiology
- Biofuel production and bioconversion
- Carbon Dioxide Capture Technologies
- Energy Efficiency and Management
- Agriculture, Soil, Plant Science
- Crop Yield and Soil Fertility
- Atmospheric and Environmental Gas Dynamics
- Water-Energy-Food Nexus Studies
- Composting and Vermicomposting Techniques
- Soil and Unsaturated Flow
- Fluid Dynamics and Mixing
- Hybrid Renewable Energy Systems
- Muscle metabolism and nutrition
- Chemical and Physical Properties in Aqueous Solutions
- Effects of Environmental Stressors on Livestock
- Meat and Animal Product Quality
- Seedling growth and survival studies
Aarhus University
2010-2024
University of Southern Denmark
2014-2019
University of Naples Federico II
2018
Università degli Studi della Tuscia
2018
United States Department of Agriculture
2009-2013
Agricultural Research Service
2009-2012
Waters (United States)
2012
Beltsville Agricultural Research Center
2011
Cornell University
2005-2006
State University of New York
2003-2005
Abstract Inter-laboratory reproducibility of biomethane potential (BMP) is dismal, with differences in BMP values for the same sample exceeding a factor two some cases. A large group researchers directly addressed this problem during workshop held Leysin, Switzerland, June 2015. The resulted new set guidelines tests published 2016, which subject present commentary. work has continued international inter-laboratory studies and one additional Freising, Germany, 2018. dataset generated by were...
Biochemical methane potential (BMP) tests are routinely conducted in academia and industry to determine the of a given substrate. Although many guidelines have been proposed standardize BMP tests, results published peer-reviewed literature show that critical flaws experimental design or execution still common. Therefore, powerful but simple method for evaluating quality measurements is this work: The specific production (SMP) curve from any trial should similar shape most substrates,...
OPINION article Front. Energy Res., 23 April 2020Sec. Bioenergy and Biofuels Volume 8 - 2020 | https://doi.org/10.3389/fenrg.2020.00063
Biochemical methane potential (BMP) tests used to determine the ultimate yield of organic substrates are not sufficiently standardized ensure reproducibility among laboratories. In this contribution, a BMP protocol was tested in large inter-laboratory project, and results were quantify sources variability refine validation criteria designed improve reproducibility. Three sets carried out by more than thirty laboratories from fourteen countries, using multiple measurement methods, resulting...
Ammonia emission following field application of animal slurry is a significant problem for the environment and human health. Accurate measurements are crucial inventories, research, mitigation. However, there may be large differences between results obtained with different methods. In this study measurement methods were compared in two experiments: Denmark (I-AU, trailing hose application, summer, arable land) Netherlands (II-WUR, shallow injection, autumn, grassland) over 7 days each. Two...
Silage, fermented cattle feed, has recently been identified as a significant source of volatile organic compounds (VOCs) to the atmosphere. A small number studies have measured VOC emission from silage, but not enough is known about processes involved accurately quantify rates and identify practices that could reduce emissions. Through literature review, we focused on identifying most important emitted corn silage (the common type in US) sources these by quantifying their production...
The R package monitoR contains tools for managing an acoustic-monitoring program including survey metadata, template creation and manipulation, automated detection results management. These are scalable use with small projects as well larger long-term those expansive spatial extents. Here, we describe typical workflow when using the in monitoR. Typical utilizes a generic sequence of functions, option either binary point matching or spectrogram cross-correlation detectors.
Ammonia (NH) emissions vary considerably among farms as influenced by climate and management. Because emission measurement is difficult expensive, process-based models provide an alternative for estimating whole farm emissions. A model that simulates the processes of NH formation, speciation, aqueous-gas partitioning, mass transfer was developed incorporated in a simulation (the Integrated Farm System Model). sources included manure on floor housing facility, storage (if used), field-applied...
Animal slurry contains plant nutrients such as nitrogen (N) that are essential for crop production. Inorganic N is easily volatilised ammonia after field application, reducing fertiliser value and causing environmental problems. Ammonia emissions can be reduced by lowering pH, rapid infiltration or incorporation of into soil. This study investigated the effect different combinations types application strategies on emissions. The tested were untreated cattle (CS), liquid fraction from...
Reducing methane from livestock slurry is one of the quickest ways to counteract global warming. A straightforward strategy reduce retention time inside pig houses by frequent transfer outside storages, where temperature and therefore microbial activity are lower. We demonstrate three removal strategies in a year-round continuous measurement campaign. Slurry funnels, trays, weekly flushing reduced emission 89, 81, 53%, respectively. funnels trays ammonia 25–30%. An extended version anaerobic...
Acidification of livestock manure can reduce emission the greenhouse gases methane (CH) and nitrous oxide (NO), as well ammonia (NH). We examined relation between these transformation organic matter affected by acidification. Liquid cattle was acidified with sulfuric acid to pH 5.5 at a pilot scale (100 L), we measured effects on CH, NO, CO NH emissions buffer components matter. reduced 62% (47 d) CH 68% (57 d). Emissions NO were negligible, probably due absence surface crust. Reductions in...