METHOD OF PRODUCTION OF CROP PRODUCTS IN CULTIVATION FACILITIES AND METHANE USING BIOENERGY POTENTIAL OF LIQUID MANURE Russian patent published in 2013 - IPC A01G9/18 

Abstract RU 2501207 C1

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. According to the proposed method, the liquid manure is subjected to anaerobic digestion in an anaerobic digester to produce biosludge and biogas. The biosludge is separated into solid and liquid fractions, the solid fraction is subjected to thermochemical processing to produce ash residue and heat carrier to heat the indoor structures and the anaerobic digester. The biogas is separated into carbon dioxide and methane; carbon dioxide is used to intensify the process of obtaining crop products. Liquid manure is subjected to preliminary aerobic treatment with decomposition of organic matter of not more than 10-15 %. The resulting substrate is separated into solid and liquid fractions, the liquid fraction of the substrate is subjected to the anaerobic treatment, the solid fraction of the substrate is subjected to additional aerobic treatment with decomposition of organic matter by more than 10-15 %, after which, at least partly, it is used to prepare the soil. The oxygen formed in the preliminary aerobic treatment, containing gas is mixed with air supplied for the additional aerobic treatment. The gas enriched with carbon dioxide from the stage of additional aerobic treatment is mixed with carbon dioxide of the biogas.

EFFECT: complete utilisation of bioenergy potential of biosludge is ensured.

2 cl, 2 dwg

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RU 2 501 207 C1

Authors

Kamajdanov Evgenij Nikolaevich

Kovalev Dmitrij Aleksandrovich

Dates

2013-12-20Published

2012-04-04Filed