ammonia emissions Articles
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The effects of bioadditive in the form of yeasts and zeolite on the composting process and odour emission
The objectives of this paper are to determine the effectiveness of bioadditive in the form of yeasts and zeolite in reducing odour and ammonia emissions during composting and to assess its effects on the process. Two series of experiments were conducted. The higher dosage treatments reached thermophilic temperatures sooner and the high temperatures stayed longer. The application of bioadditive at ...
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The effects of bioadditive in the form of yeasts and zeolite on the composting process and odour emission
The objectives of this paper are to determine the effectiveness of bioadditive in the form of yeasts and zeolite in reducing odour and ammonia emissions during composting and to assess its effects on the process. Two series of experiments were conducted. The higher dosage treatments reached thermophilic temperatures sooner and the high temperatures stayed longer. The application of bioadditive at ...
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Experiences with 7 years of acidification in Denmark - SyreN system, a commercial method to fertilize with sulphate while reducing animal slurry ammonia emission
Abstract In 2009 a group of companies were assembled (Aarhus University, SEGES, BioCover A/S and Grundfos ) and committed to a joint development project “SyreN” - technology for field acidification of slurry, with support from the Danish ministry for development and innovation. The group defined and created a demand specification for using sulfuric acid together with a slurry tanker ...
By Biocover A/S
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Effects of reducing dietary nitrogen on ammonia emissions from manure on the floor of a naturally ventilated free stall dairy barn at low (0–20°C) temperatures
Received for publication December 30, 2008. This study was conducted to determine the potential for reducing ammonia (NH3) emissions from manure deposited on the floor of a naturally ventilated free stall barn by mid-lactation dairy cows fed reduced or normal N diets. Two crude protein (CP) diets (178 g kg–1 [high] and 159 g kg–1 [low] dry matter ), were used. The diets were fed to 48 Holstein ...
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Reduction of ammonia emissions during composting by Uncoupling of oxygen demand and heat removal
Intensive pig production systems result in high emissions of ammonia, odour and greenhouse-gases (methane and laughing gas) by exhaust ventilation air. Moreover, large amounts of manure (faeces and urine) are produced with insufficient nearby land for applications (Imbeath, 1998). These outputs lead to environmental problems related to acidification and euthrofication of natural ecosystems, ...
By ORBIT e.V.
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Nitrogen losses from dairy manure estimated through nitrogen mass balance and chemical markers
Received for publication February 13, 2009. Ammonia is an important air and water pollutant, but the spatial variation in its concentrations presents technical difficulties in accurate determination of ammonia emissions from animal feeding operations. The objectives of this study were to investigate the relationship between ammonia volatilization and 15N of dairy manure and the feasibility of ...
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LCA case study on lawn establishment and maintenance with various peat and compost contents in substrates
The environmental impacts of the establishment and maintenance of lawn, including the production and use of various substrates, were analyzed by life cycle assessment (LCA). The project focused on comparing substrates with different peat and compost contents using pilot substrates and developed a calculation tool to optimize landscaping from an ecological perspective. The impact categories ...
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Enhancing soil infiltration reduces gaseous emissions and improves n uptake from applied dairy slurry
Rapid infiltration of liquid manure into the soil reduces emissions of ammonia (NH3) into the atmosphere. This study was undertaken to assess the effects of two low-cost methods of assisting infiltration of applied dairy slurry on emissions of NH3, nitrous oxide (N2O), and on crop N uptake. The two methods were removing of solids by settling-decantation to make the manure less viscous and ...
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Effect of cattle slurry separation on greenhouse gas and Ammonia emissions during storage
Storage of cattle slurry leads to emissions of methane (CH4), nitrous oxide (N2O), ammonia (NH3), and carbon dioxide (CO2). On dairy farms, winter is the most critical period in terms of slurry storage due to cattle housing and slurry field application prohibition. Slurry treatment by separation results in reduced slurry dry matter content and has considerable potential to reduce gaseous ...
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Application of Biochar in Poultry Farming
In the ever-evolving landscape of sustainable agricultural practices, biochar emerges as a promising contender, offering a multitude of benefits to poultry farming operations worldwide. Derived from the biomass pyrolysis process, biochar is a carbon-rich substance renowned for its capacity to enhance soil health, improve nutrient retention, and mitigate environmental degradation. Its application ...
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Effect of covering composting piles with mature compost on ammonia emission and microbial community structure of composting process
Received for publication February 14, 2008. To control ammonia (NH3) volatilization from the dairy cattle (Bos taurus) manure composting process, a compost pile was covered with mature compost and the gas emissions evaluated using the dynamic chamber system. The peak of NH3 volatilization observed immediately after piling up of the compost was reduced from 196 to 62 mg/m3 by covering the compost ...
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Feeding willow to ruminants could reduce greenhouse gas and ammonia emissions - Case Study
Trees provide shelter and shade for livestock, and some offer additional forage, nutritionally important supplementary minerals, and possible control of intestinal worms through the action of condensed tannins contained within the leaves. Condensed tannins also have the potential to suppress microbial activity in the rumen, reducing the uptake of nitrogen into the blood, and ultimately into the ...
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Top 3 Considerations When Buying a Slurry Applicator
Dribble bar, band spreader, trailing hose, trailing shoe, disc injector or shallow injection? Whatever name you read or see, they all refer to low emission spreading systems under evolving environmental regulations. The variety of systems available, and the number of options and features, can be baffling to even the most experienced farmer! We have put together the top three factors to think ...
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Cover crop effects on the fate of N following soil application of swine manure
Abstract Cereal grain cover crops increase surface cover, anchor corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] residues, increase infiltration, reduce both rill and interrill erosion, scavenge excess nutrients from the soil, and are easily obtained and inexpensive compared to other cover crop options. The use of cereal grain cover crops in fields where manure application occurs ...
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Pilot scale facility to determine gaseous emissions from livestock slurry during storage
Livestock production is a growing source of air pollution, locally and to the wider environment. Improved livestock manure management has the potential to reduce environmental impacts, but there is a need for methodologies to precisely quantify emissions. This paper describes and evaluates a novel storage facility for livestock slurry consisting of eight 6.5-m3 cylindrical units. The stores may ...
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Seasonal ammonia losses from spray-irrigation with secondary-treated recycled water
This work examines ammonia volatilization associated with agricultural irrigation employing recycled water. Effluent from a secondary wastewater treatment plant was applied using a center pivot irrigation system on a 12 ha agricultural site in Palmdale, California. Irrigation water was captured in shallow pans and ammonia concentrations were quantified in four seasonal events. The average ammonia ...
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Air emissions of ammonia and methane from livestock operations: Valuation and policy options
The animal husbandry industry is a major emitter of ammonia (NH3), which is a precursor of fine particulate matter (PM2.5) —arguably, the number-one environment-related public health threat facing the nation. The industry is also a major emitter of methane (CH4), which is an important greenhouse gas (GHG). We present an integrated process model of the engineering economics of technologies to ...
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The Wonderful Use of Bamboo Biochar in Poultry Farming
Bamboo biochar, a carbon-rich material produced through the pyrolysis of bamboo biomass, offers numerous benefits for poultry farming operations. From enhancing soil fertility to improving animal health and reducing environmental impact, bamboo biochar has emerged as a valuable resource in sustainable poultry production. In this article, we explore the wonderful uses of bamboo biochar in poultry ...
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Influence of temperature during the initial phase of Composting on biological activity and emission of Ammonia and dinitrogen oxide
Composting is a robust and cheap biological treatment method useful for all solid biodegradable waste. The performance of composting can vary substantially depending on managing conditions such as oxygen supply and compost temperature. Oxygen and temperature affects the rate of degradation and may also influence emission of NH3 and N2O. The gaseous N losses during composting from organic ...
By ORBIT e.V.
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Formation and emissions of ammonia and greenhouse gases from stored and composted solid animal manure
Beside other branches of industry, agriculture is an important source of methane (CH4) and nitrous oxide (N2O) emissions and the most important source of ammonia (NH3). In spite of several investigations concerning ammonia and greenhouse gas emissions during storage and composting of liquid and solid animal manure, the real extent of these emissions is still unknown. This is mainly because of the ...
By ORBIT e.V.
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