Treatment of swine manure: case studies in European’s N-surplus areas

Authors

  • Maria Cruz García-González Agricultural Technological Institute of Castilla and León
  • Berta Riaño Agricultural Technological Institute of Castilla and León
  • Marta Teresa Aragon Company of Agri-environmental Management S.L.U.
  • Eva Herrero Aragon Company of Agri-environmental Management S.L.U.
  • Alastair James Ward Aarhus University; Dept. of Engineering
  • Giorgio Provolo University of Milan; Dept. of Agricultural and Environmental Sciences
  • Giuseppe Moscatelli Research Centre on Animal Production
  • Sergio Piccinini Research Centre on Animal Production
  • August Bonmatí UPC; IRTA
  • María Pilar Bernal Centro de Edafología y Biología Aplicada del Segura
  • Hanna Wiśniewska Marshal of the Warmińsko-Mazurskie Voivodeship
  • Marcin Proniewicz Marshal of the Warmińsko-Mazurskie Voivodeship

DOI:

https://doi.org/10.1590/0103-9016-2015-0057

Abstract

In this study, eight different manure treatment plants were monitored. The plants were four on-farm and four centralized treatment plants, all of them at full-scale level. Assessment includes a total of seven pre-treatment and process units as follows: mechanical separation, with and without coagulant and flocculant addition, pasteurization, nitrification-denitrification, anaerobic digestion, and composting. The plants are located in nutrient surplus areas of three European Member States (Spain, Italy and Denmark), the majority of these areas being Nitrate Vulnerable Zones (NVZ). Results presented herein are data collected over a six-month period and comprise performance data of the treatment plants, pathogen indicators (E.coli and Salmonella) and greenhouse gas (GHG) emissions data under two scenarios: 1) the baseline scenario and 2) the treatment plant scenario. The assessment includes GHG emissions of the storage facilities, transportation, and subsequent intermediate storage, electric consumption, electric production, composting, and land application. All treatment plants studied generated a significant reduction in GHG emissions (between 53 and 90 %) in comparison to the baseline scenario. Organic matter and total solids (TS) content in manure were also greatly reduced, with values ranging between 35-53 % of chemical oxygen demand (COD) and, 24-61 % of TS for anaerobic digestion (AD) treatment plants, 77-93 % COD and 70 % TS in the case of AD combined with nitrogen (N)-removal unit plants. Nitrogen concentrations were also greatly reduced (between 65-85 %) total Kjeldahl nitrogen (TKN) and 68-83 % ammonium (NH4+-N)) in plants with N-removal units.

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Published

2016-10-01

How to Cite

García-González, M. C., Riaño, B., Teresa, M., Herrero, E., Ward, A. J., Provolo, G., Moscatelli, G., Piccinini, S., Bonmatí, A., Bernal, M. P., Wiśniewska, H., & Proniewicz, M. (2016). Treatment of swine manure: case studies in European’s N-surplus areas . Scientia Agricola, 73(5), 444-454. https://doi.org/10.1590/0103-9016-2015-0057

Issue

Section

Agricultural Engeneering