pig slurry Articles

  • Potential phosphorus, potassium, and magnesium surpluses in an irrigated maize monoculture fertilized with pig slurry

    Pig slurry (PS) is extensively applied to irrigated maize in nitrate-vulnerable zones of the Ebro Valley, Northeast Spain. Farmers base PS rates on the European Union (EU) Nitrates Directive (up to 170 kg N ha–1 derived from organic sources) or on maize-N requirements (about 300 kg N ha–1). The aim of the study was to assess whether these PS rates would lead to P, K, and Mg surpluses in excess of ...

  • Transport and fate of estrogenic hormones in slurry-treated soil monoliths

    Received for publication October 29, 2007. The naturally occurring hormones, such as 17-β-estradiol, 17-{alpha}-estradiol, and estrone, present in livestock manure may have detrimental environmental effects if released into surface waters. In areas where manure application is intensive, estrogens have been found in surface waters in concentrations known to affect the endocrine system of fish ...

  • 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 ...

  • Occurrence of tylosin in swine wastewater in Mexico

    This study determined a tylosin concentration in swine wastewater located in a Mexican pig farm, during different stages of the pigs' growth. The detection of antibiotics in swine wastewater is complex due to its high concentration of solids. Analytical method was developed for detection of tylosin in swine wastewater and swine slurry. Average recoveries of tylosin in the liquid and solid ...


    By IWA Publishing

  • Lowara pumps drive livestock operations

    Animal output processed for safe disposal, reuse and renewable energy Xylem scope Xylem Lowara have installed several different types of pumps in this process cycle. Ranging from the DLV submersible pump fitted with Vortex impeller used in the pressurization of wastewater obtained from the separation of the digestate. Various high efficiency e-range pumps ...


    By LOWARA - a Xylem brand

  • The gas upgrading plant in Beetzendorf (Germany) - Case Study

    Location: Beetzendorf (Germany) Capacity: 350 m³/h biomethane Inputmaterials: Pig slurry, poultry manure, maize silage, grass silage Features: Plant delivers ca. 36 million kilowatt hours (kWh/a) of green energy and can supply 1,800 households with gas 36 million kilowatt hours (kWh) of green energy per ...


    By EnviTec Biogas AG

  • A small plant with great success - case study

    The farm-based biogas plant operated by the Wienken family in Augustenfeld (near Löningen) is the first plant of its size built by bwe. Originally, the farm's operator had planned to install a straw heating element. However, since the input materials are available on the farm itself in their entirety, the decision to implement a biogas plant designed by bwe was obvious. One decisive aspect ...

  • New animal feed plant relies on proven sera dosing technology

    Top animal feed is a result of the exact application of composition during the production process as well as the use of stateof-the-art technology. The correct planning of the systems engineering is as important as the experience of the staff in the production department. When the Rothkötter animal feed plant was built in Haren-Hüntel, the company relied on sera – a name widely ...


    By sera GmbH

  • Redefining ag-wastes as coproducts

    Alan Doering doesn’t have the word “waste” in his vocabulary. As the scientist heading up the Agricultural Utilization Research Institute’s (AURI) coproduct utilization program, Doering sees crop residue, agricultural processing leftovers and biomass as products with value worth exploring. “Every leftover or coproduct has a value,” Doering says. “Our goal is to find the best use with the highest ...


    By BioCycle Magazine

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