Upgrade of efficiency and process stability of biogas production in biogas stations

To analyse all known biological and technological problems in biogas production and to propose appropriate operating conditions for upgrading efficiency and process stability in the biogas plants.

Project BIOEFECT is focused on detailed application research of individual biological and biotechnological processes during biogas production in biogas stations. The aim of this research is to propose such measures and such techniques of input substrate processing, so that significantly higher efficiency in biogas production will be achieved, and in doing so, this renewable energy source will become more attractive for potential investors. Biogas production has a long worldwide tradition, because it is technological processing of one of the most known biological processes. In this process, in the absence of air (in anaerobic environment), organic matters decompose and biogas is released. The dominant component of biogas is a well-known gas - methane. Biogas also (methane in its base) releases an undesirable product in a number of cases, which noticeably contributes to ozone shrinkage - it is a very aggressive 'greenhouse' gas. The more significant is methane targeted processing in so-called biogas stations. The central element of these stations is a reactor, where in the absence of air and simultaneous mixing and heating of organic substance, biogas degasifies. From the ecological point of view it is a very contributing process, where from the very aggressive waste matter (excrement of livestock, etc.), relatively beneficial substrate evolves. It is possible to use this substrate as an organic fertilizer in accordance with very strict nitrate regulations. In spite of this the share of biogas stations in the CZECH REPUBLIC for organic waste processing is very low. High entrance investment, considerable operation costs in biogas stations and also the relatively small results from biogas production are of course the reasons for such a situation. However, the situation is markedly starting to change in the CZECH REPUBLIC. In spring of this year, the law about the use of renewable energy sources came into force. This law guarantees very good redemption prices for electric energy, which we are able to produce with the aid of biogas. Biogas production and the subsequent production of electric energy are becoming very attractive for many potential investors. Another impulse of biogas station development should be EU regulation 99/31/EC concerning waste disposal. This regulation instructs Member States to decrease gradually the share of biologically decomposable waste, which ends up on waste dumps. To observe this regulation will mean in the conditions of the CZECH REPUBLIC to support the processing of organic waste in biogas stations chiefly by economic tools. It is necessary to support all mentioned aspects by quality processing technology for biological waste processing in biogas stations. Despite the fact that it is generally very well known and described in detail, the biotechnological process, which runs in an anaerobic reactor of for example 1,000 m3 capacity, is very complicated and at present there exist many unknown factors that influence yield and primarily stability of the whole anaerobic process in a very negative way. Many institutions deal with these process analyses in laboratory conditions, but these conditions are significantly different from continual and distinct processes used in big reactors. In our project we will analyse in detail and monitor the chemical and physical operation factors of standard operation reactors during a simultaneous change of technological conditions (mixing, heating, etc.). In such a way, information gathered will be analysed in detail by university experts who specialise in these types of biological and chemical processes. The aim of these analyses is to define such operation measures, in technology as well as in input organic material composition, so that we will achieve a proven increase in the efficiency of biogas stations and particularly increases in biogas production stability in less standard conditions - primarily during the processing of biologically decomposable communal waste. Keywords: biotechnology, biogas, energy resources.
Project ID: 
3 649
Start date: 
Project Duration: 
Project costs: 
500 000.00€
Technological Area: 
Biotreatment / Compost / Bioconversion
Market Area: 
Electric companies

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.