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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

Date: August 30,2019 |Hits: 2139 Download PDF How to cite this paper

M. Toft *, C. T. Madsen

BioCover A/S, Veerst skovvej 6, 6600 Vejen Denmark.

*Corresponding author: M. Toft, Email: mt@biocover.dk


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 during application with the purpose of reducing ammonia emission, later called “field acidification”. Another effect of the sulfuric acid was the addition of sulphate to slurry. Following a successful research evaluation, the system was developed by BioCover to a pilot scale system for tests and following used in commercial slurry application. The commercial product was named SyreN. Today 120 SyreN units are operative in Denmark, acidifying approx. 5.350.000 m3 slurry/year, and do so with an acid amount that often corresponds with the sulphur need by the crops.


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How to cite this paper

Experiences With 7 Years of Acidification in Denmark-Syren System, a Commercial Method to Fertilize with Sulphate while Reducing Animal Slurry Ammonia Emission

How to cite this paper: M. Toft. C. T. Madsen. (2019) Experiences with 7 years of acidification in Denmark–SyreN system, a commercial method to fertilize with sulphate while reducing animal slurry ammonia emission. International Journal of Food Science and Agriculture, 3(3), 188-191.

DOI: http://dx.doi.org/10.26855/ijfsa.2019.09.007

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