Manure Emissions Articles

  • Have humans tilted the climate books out of balance?

    In the great book-keeping of climate change, scientists have just discovered a big mistake. They have been wrong, they now think, to count on the mountains, the plains, the forests and the grasslands as an agency that slows climate change by absorbing carbon dioxide. It does absorb carbon dioxide. But the chilling news is that  ...


    By Climate News Network

  • 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

  • Huxley hutterite brethren colony case study

    A. Farm Description Barn Type: 80 stall free stall barn with saw dust on floor. Manure Handling: Barn houses 80 cows over 8 pits, each 7 feet deep and 12 feet wide. Manure is stored under the slatted floor for 6 months and then agitated and pumped out. B. The Problems: As the pits are pumped ammonia levels rise significantly resulting in problems for barn staff ...


    By Nordevco Associates Ltd.

  • Nitrogen removal from digested manure in a simple one-stage process

    A process based on partial nitrification and recirculation into the anaerobic digester was studied to remove nitrogen from digested manure and thus reduce enhanced gaseous ammonia emissions due to on-farm biogas production. An anaerobic reactor representing an anaerobic manure digester was fed with a nitrite solution and digested manure liquor. Nitrite was efficiently removed from the influent ...


    By IWA Publishing

  • Closed-Loop Companies

    At Big Rock Brewery, spent grain is used as cattle feed. Pictured here is brewmaster Paul Gautreau. Alberta may not always get an A-grade when it comes to the environment, but in some areas the province’s enterprises are on the leading edge. In industries from agriculture to forestry to beer, Alberta businesses are taking their own initiative to become closed-loop producers – that ...


    By Himark bioGas Inc

  • 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 ...

  • Fog and precipitation chemistry at a mid-land forest in central Taiwan

    We analyzed fog and bulk precipitation chemistry at a cloud forest in central Taiwan where mountain agriculture activities are highest. There were 320 foggy days (visibility <1000 m) recorded between April 2005 and March 2006. Fog was most frequent between April 2005 and July 2005 and in March 2006 (153/153 d) and least frequent in January 2006 (21/31 d). The total fog duration was 2415 h, ...

  • Methane and carbon dioxide emission from two pig finishing barns

    Received for publication July 22, 2007. Agricultural activities are an important source of greenhouse gases. However, comprehensive, long-term, and high-quality measurement data of these gases are lacking. This article presents a field study of CH4 and CO2 emission from two 1100-head mechanically ventilated pig (Sus scrofa) finishing barns (B1 and B2) with shallow manure flushing systems and ...

  • 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 ...

  • CH#1115 - Small Holder Piggery Problems

    Waste Type: Pig Manure Article: After 20 yrs with SAA, Mark Tutton, a qualified aircraft engineer, licenced to maintain Jumbos and having being stationed around SA and Mauritius decided to retire from the rat race. A few years before leaving he had purchased a small holding near Benoni where he bought [fattened] and sold goats & sheep. He came from a farming family, and, when he was ...


    By Bio-Systems International

  • 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 ...


    By Springer

  • Physico-Chemical P Removal from the Liquid Fraction of Pig Manure as an Intermediary Step in Manure Processing

    Abstract  Intensive animal farming has resulted in overproduction of manure in parts of the industrialized world. The localized excessive nutrient emission has detrimental effects on both ecology and economy. In response to European guidelines, Flanders (Belgium) has imposed obligations on the agricultural sector to process a portion of the produced animal manure. To achieve the stringent ...


  • Compost maturity as expressed by phytotoxicity and Volatile organic acids

    VOA in Composts Maturity is a qualitative trait of compost that may be expressed in a number of ways and is generally held to be relevant to plant performance. Volatile organic acids (VOA) have been cited to be responsible for phytotoxicity (plant growth suppression) when immature compost is used for growing plants (Manios et al., 1989). However, the production of VOA in compost has not been well ...


    By ORBIT e.V.

  • 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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