“THE DEVELOPMENT OF TECHNICAL REQUIREMENTS
FOR INDUSTRIAL PRODUCTION OF METHANE, OBTAINED
FROM BLUE-GREEN ALGAE”
1) A new method of solving the “water bloom” problem by means of obtaining of methane from cyanobacteria biomass (blue-green algae), gathered from the water area of Dnipro basin reservoirs during the time of its mass growth, is suggested. Cyanobacteria biomass is a free energy source.
2) The method is distinguished by the type of process substrate (cyanobacteria biomass) and the biogas quantitative composition (increase of methane content by means of decrease of hydrogen sulfide and carbon dioxide content).
3) Technical result is the obtaining of gas mixture – about 1200 ml of concentrated substrate from 1 dm3 of cyanobacteria biomass during a week under the optimal temperature of 20-30°C – with the quantitative and qualitative content of product as follows: methane (~80%), carbon dioxide (~15%), other gases (~5%), and no hydrogen sulfide, metal constructions corroding agent, that is found in the content of biogas extracted from the other substrates.
The application of this project will make it possible to improve the environmental conditions of the river Dnipro, riverside centers of population and recreation facilities, to increase fish productivity, and to cut down the expenses for water purification in compliance with National Standard “potable water”, so far as the extraction of cyanobacteria from the water will bring about its conditioning (during the fermentation methane, acetone, butyric and acetic acids, butanol, phenols, amines of ptomaine type (putrescines), etc., are accumulating in the water).
The important task of the project is the estimation of useful biologically active substances and biogenic elements residual in the used substrate for the purpose of its further application as fertilizer in the agriculture and forestry. There are analogues of this project at the level of methane genesis application, but there are no analogues in the world in the field of usage of blue-green algae as the substrate for fermentation; the other special feature of the project is that the obtained biogas is characterized by the high methane content.
4) The model set for obtaining the biogas from blue-green algae (a) and the diagram of the stationary complex consisting of anaerobic chamber and enrichment column (b).
5) The 1st stage (one year, ˆ 25 000): theoretical research to establish physical-chemical mechanism of hydrocoles methane genesis in the active environment of different abiotic and biotic factors.
The 2nd stage (one year, ˆ 45 000): experimental surveys of biological and kinetic and thermodynamic peculiarities of methane obtaining through the control of hydrocoles organic substances anaerobic transmutation. Experimental tests in the chamber.
The 3rd stage (one year, ˆ 75 000): construction of the full-scale stationary complex consisting of anaerobic chamber and enrichment column, process requirements engineering for obtaining of methane from blue-green algae, and also testing and manufacturing application of the project.
In time of seston gathering in the spots of “bloom” in the water area of Kremenchuk water storage basin only, on the area of 2 250 km2 in quantity up to 50kg/m3 from the shallow waters volume of 828 m.m3 (depth up to 2 m; 18.4 % of basin area), its biomass will make a total of 4.14x107 ton during the vegetation period (70 days). The biomass fermented under the process of methane genesis, it is possible to obtain up to 108 m. m3 of biogas (~87m. m3 of methane), that is the equivalent to 76 000 ton of petroleum or 60 000 ton of diesel oil.
6) Related branches: “ecology and health”, “agriculture”.
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Research supervisor: A.V. Lugovoy, CandSc (Technics), Prof., Honoured Science Worker, Kremenchuk Mykhaylo Ostrohradskiy National University scientific efforts pro-rector.
Drafter: O.I. Yelizarov, DSc (Physics & Mathematics), Prof., Ukrainian State Prize Winner in the field of science and technology, Head of the chair of Physics at Kremenchuk Mykhaylo Ostrohradskiy National University (phone: (05366) 32076, firstname.lastname@example.org).
Chief executor: V.V. Nykyforov, DSc (Biologys), Ass. Prof. at the Chair of Ecology, Head of Research Department at Kremenchuk Mykhaylo Ostrohradskiy National University (phone: (05366) 36217, email@example.com).
Executors: T.F. Kozlovska, CandSc (Chemistrys), Ass. Prof. at the Chair of Personal and Social Safety at Kremenchuk Mykhaylo Ostrohradskiy National University.
M.O. Yelizarov, CanSc (Physics & Mathematics), Ass. Prof. at the chair of Physics at Kremenchuk Mykhaylo Ostrohradskiy National University.
S.V. Digtiar, advanced student at the Chair of Ecology at Kremenchuk Mykhaylo Ostrohradskiy National University.