Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 14 ISSUE 1
Written by Mariana DUMITRU
This paper aims to expose the many possibilities of using digestate in biogas plants and the advantages of its using. In agricultural animal farms is produced a big quantity of animal manure, which must be adequate managed, mainly as fertiliser. The most advantageous solution of using animal manure and slurry is using it in biogas plants, where, due to degradation of organic matter, digestate is easier to pump and easier to apply as fertiliser, with reduced need of stirring, compared to untreated slurry. The researches made showes that digestate has lower C/N ratio, compared to raw manure. This property means that digestate has a better effect in fertilisation with Nitrogen on short term. The paper also shows the effects of digestate application on soil, compared to compost application of digestate as fertiliser, must be done on the basis of a fertiliser plan. The fertiliser plan with digestate is elaborated for each agricultural farm, according to the type of crop.
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biogas plant
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