ammonia fertilizer Articles

  • HRC Pilot Test Reduces Fertilizer Contamination at an Agricultural Facility

    Site Summary Ammonia nitrate is the most common chemical used in fertilizers, providing nitrogen to plants for growth. Dichloropropane (DCP) has also become popular in agriculture as the most common pesticide sprayed on fruit and nut crops to control nematodes. When released into groundwater, nitrate and DCP can be hazardous to human health. A distributing facility in Northern California housed ...


    By Regenesis

  • 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

  • Ammonia sanitization of blackwater for safe use as fertilizer

    Source-separated blackwater from low-flush toilets contains plant-available nutrients and can be used as a fertilizer. The aim of the study was to evaluate the impact on pathogen inactivation when treating blackwater with urea and/or lime. Blackwater was spiked with Salmonella typhimurium, Escherichia coli O157, Enterococcus faecalis, and Ascaris ...


    By IWA Publishing

  • Fertilizer NPK from human urine and olive oil mill wastewaters

    The objective of this work was to determine how some wastewater acids could be used to prevent the decomposition of urea into ammonia during storage. The effect of storing human urine with olive oil mill wastewaters (OOMW) or water bubbled with CO2 (BW), was studied. Moreover, the application of two levels of urine dissolved in water OOMW, has been studied in relation to the properties of two ...


    By IWA Publishing

  • Mineral-nitrogen leaching and ammonia volatilization from a rice–rapeseed system as affected by 3,4-dimethylpyrazole phosphate

    Received for publication November 9, 2008. 3,4-Dimethylpyrazole phosphate (DMPP) was validated as an effective nitrification inhibitor to reduce nitrate leaching. Its effects on ammonia (NH3) volatilization were not clear, especially on farmland scale with crop rotations. In this study, on-farm experiments at the Jiaxing (JX) and Yuhang (YH) sites in Taihu Lake Basin, China were conducted to ...

  • Effect of tillage and nitrogen rate on corn yield and nitrogen and phosphorus uptake in a corn-soybean rotation

    Understanding tillage, N, and P interactions can contribute to improved N and P utilization and crop response. This study examined the interaction effects of tillage and N rate of two N sources on N and P uptake by corn (Zea mays L.). The study was conducted on Kenyon loam (fine loamy, mixed, mesic Typic Hapludolls) soil at the Iowa State University Northeast Research and Demonstration Farm near ...

  • 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 ...


    By IWA Publishing

  • Effect of Alum treatment on the concentration of total and Ureolytic microorganisms in poultry litter

    Microbial mineralization of urea and uric acid in poultry litter results in the production of ammonia, which can lead to decreased poultry performance, malodorous emissions, and loss of poultry litter value as a fertilizer. Despite the fact that this is a microbial process, little is known about how the microbial populations, especially ammonia-producing (ureolytic) organisms in poultry litter, ...

  • On-farm assessment of the amount and timing of nitrogen fertilizer on ammonia volatilization

    Ammonia (NH3) volatilization is one of the main pathways through which applied N enters the environment undesirably. A seven site-year on-farm field experiment was performed for 3 yr at Ottawa, ON, and 2 yr at Guelph, ON, and Saint-Valentin, QC, Canada. Our objectives were to (i) quantify the flux and the amount of NH3 volatilization as affected by the rate and time of N fertilizer; (ii) assess ...

  • Ammonia volatilization from Urea-based fertilizers applied to tall fescue pastures in Georgia, USA

    The use of urea fertilizers in grasslands is likely to increase in areas with concentrated animal feeding operations as restrictions on manure applications are implemented. Concerns have been raised about the economic and environmental impacts of NH3 loss from these urea fertilizers. This study evaluated NH3 losses from Nitamin (a urea polymer), urea–NH4NO3 (UAN), and granular urea applied to ...

  • Removal of Phosphorus from livestock effluents

    Received for publication December 12, 2007. For removal of phosphorus (P) from swine liquid manure before land application, we developed a treatment process that produces low P effluents and a valuable P by-product with minimal chemical addition and ammonia losses. The new wastewater process included two sequential steps: (i) biological nitrification and (ii) increasing the pH of the nitrified ...

  • Burn it no more!

    The other day I came across an old news article from 2008 about a Dutch energy plant that burns 485,000 tons of poultry litter each year, converting it into renewable electricity. Wow, I thought. That is an old-fashioned way of getting rid of poultry litter – they must be releasing some 14,550 tons nitrogen gas into the atmosphere. All this to produce 270,000 MWh of electricity, 890,000 MWh ...


    By Ductor Corp.

  • Poul-AR Valorization of poultry manure - Fertilizer and energy from poultry manure

    Application In contrast with generic manure types, poultry manure is very rich in nutrients as nitrogen (N) & phosphorus (P), but also in organic material. Both the form and the N/P ratio in which the nutrients are present make the manure less suitable for direct application as natural fertilizer. It leads to the release of large and undesired amounts of volatile ammonia into the ...


    By Colsen International b.v.

  • Custom DELUMPER LP Reduces Wet, Sticky Agglomerates No Other Unit Could Handle - Case Study

    When a major global leader in agricultural products, needed help reducing wet and sticky agglomerates in a very tight plant location, Franklin Miller was ready with a custom solution. The customer produces phosphate, nitrogen, and potash, three ...


    By Franklin Miller Inc.

  • Koch Fertilizer enhances institutional knowledge using Enviance - Case Study

    Koch Fertilizer, LLC and its affiliates are collectively one of  the world’s largest producers and marketers of nitrogen  fertilizers. Since 1989, these companies have grown and  expanded their global capabilities to serve customers’  needs for ammonia, urea, UAN and fertilizer blends. As Koch  Fertilizer has grown through acquisitions, the company has  ...


    By Enviance, Inc.

  • Fertilizer Industry: New Fertilizer Plant Eliminates Toxic Fumes with Special Scrubbers Case Study

    Effective control of toxic emissions from fertilizer plants, has been demonstrated in the South American countries of Colombia and Venezuela. A jointly operated process plant in Monomeros Colombo Venezolanos, produces caprolactam for the textile industry and various chemical fertilizers for agricultural use. Agricultural plant capabilities were recently increased with the addition of process ...


    By CR Clean Air Group, LLC

  • Local fertilizer manufacturing: A new look at agro-business

    The American farmer works in a tough business. Aside from the demanding physical and mechanical processes to raise fertile crops from tiny seeds, the farmer must also battle against supply for adequate water, the right seeds, pest and weed control products, and various fertilizers. All these elements have added stress and cost to bring a crop to market, making it less profitable than ever to ...


    By Verde LLC

  • The oil intensity of food

    Today we are an oil-based civilization, one that is totally dependent on a resource whose production will soon be falling. Since 1981, the quantity of oil extracted has exceeded new discoveries by an ever-widening margin. In 2008, the world pumped 31 billion barrels of oil but discovered fewer than 9 billion barrels of new oil. World reserves of conventional oil are in a free fall, dropping every ...


    By Earth Policy Institute

  • State Fertilizer Officials Focus on Compost

    For two years, the U.S. Composting Council’s (USCC) marketing committee has been meeting with the American Association of Plant Food Control Officials (AAPFCO) to discuss how the two organizations could work together to create a uniform compost bill to be given to each state legislature to consider adopting into law. AAPFCO is an organization of fertilizer control officials from each state in the ...


    By BioCycle Magazine

  • Dutch Farmers Find It Pays To Manage Poultry Manure

    Poultry farmers in Holland face challenges similar to their North American counterparts in dealing with manure from concentrated operations where there is insufficient cropland for application. This creates a need for exporting manure from the producing farm to users in other places. Poultry operations in Holland differ from most North American poultry farms in that most are not vertically ...


    By BioCycle Magazine

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