Navigation : EXPO21XX > BIOENERGY 21XX > H02: Biomass Power Plant > Biogas-Ost
  • Offer Profile
  • We as Biogas-Ost provide various products and performances, that you can order separately, combine with others or order as a whole.

    We plan, build and maintain with sustainability, flexibility and quality in order to be able to offer you highly economical biogas plants. As a reliable and competent partner for our customers, we have made ourselves known in Germany and abroad since 1991. With high-quality expertise and innovative products we supply mainly customers from:

    • agriculture,
    • industry
    • and communes.
Product Portfolio
  • Complete Systems

      • Biogas Plants

      • We as Biogas-Ost offer our customers reliable, efficient, and customised biogas plants. We have specialised in so-called Clever-Ferm-Systems with an electrical power range of 30 to about 150 kW as well as in systems with substrates which are difficult to ferment, e.g. slaughterhouse waste, glycerol, manure, hay, straw and residues from olive oil production.

        Working very closely with you as our customer, every system is specially tailored to meet your specific individual ideas and local requirements. For this, our experienced and qualified staff assists you from the planning phase through the system construction and to the commissioning start-up phase.

        The planning and design of each biogas system is internally based on our over 20 years of experience in this area. If you would like us to offer you a biogas plant, please fill in the inquiry forminquiry form to as much detail as possible, because your data represents the basis for the optimal design of your plant. Changes in plant design and construction are possible at any time in compliance with local regulations and laws. In addition, for our German customers we offer to take over the approval process as well as all the necessary communication with the authorities.
      • Landfill

      • Landfill gas (or dump gas) is produced as the result of bacteriological and chemical decomposition of organic substances. It mainly consists of the two components methane, a colourless and odourless gas, and carbon dioxide.

        The disposal of the gas mixture is a tender subject: On the one hand, landfill gas affects the climate in the case it is emitted in an uncontrolled way, but on the other hand, landfill gas, if used in a wise manner, has the potential to become an important energy resource.
        Depending on the type of waste, a certain quantity of landfill gas is produced by bacteria during the fermentation process. Classical household waste and sewage sludge offer the greatest gas potential. For example, out of one ton domestic waste approximately 150 up to 250 m³ landfill gas can be gained within 10 to 15 years. Landfill sites consisting of construction rubble have no potential for the production of utilizable gas. In general, the quantity of produced gas, besides on the waste composition, depends on further factors:
        • Quantity of waste,
        • Storage period,
        • Water balance of the landfill site,
        • Climate (outside temperature, air pressure, wind direction and speed)
        • Type of landfill site (e.g. hillside, pit or waste heap landfill site).

        In addition, the potential gas volume can be reduced due to pre-treatment of the waste, e.g. rotting, fire on the site or loose waste structure.
      • Waste water treatment

      • The aim of waste water treatment is the removal of polluting substances and recovery of the natural water quality. Constructed sewage treatment plants are used for purification of the resulting wastewater. The wastewater first passes through a mechanical pre-cleaning. Next up is the main biological treatment stage, the reed bed.

        In the sewage treatment, inflow coarsest and floating solids will be removed. The pre-treated wastewater passes through a loading device in the reed bed in which the main biological cleaning takes place. The reed bed can consist of one or more series- or parallel-connected beds which can be perfused vertically or horizontally. The combination of both methods is most efficient.

        The wastewater is treated with the help of interplay of sediments, microorganisms, plants, and the way of feeding the soil body. The living microorganisms degrade the wastewater ingredients with the help of oxygen into different chemical compounds.

        After the reed bed the wastewater is pumped into the drain and inspection shaft where samples for analysing the cleaning performance can be taken.

        Benefits of a sewage treatment plant:
        • simple construction and operation
        • low power consumption (in horizontal constructed reed beds the electrical connection can be omitted)
        • low operating and maintenance costs
        • adapting to load impacts possible
    • Systems Components

        • CHP & KomBiCon

        • A combined heat and power plant (CHP) is a modular system for generating electrical energy and heat, which uses the principle of power-heat coupling. Here are two different concepts of combustion engines available: dual-fuel or gas engines.

          Dual-fuel engines are less sensitive to fluctuations in gas quality but require an auxiliary firing and are not as durable as gas engines.

          Gas engines require a higher investment in smaller power classes but are far more durable than dual-fuel engines. The economic and ecological basic idea of heat-running processes is to use generated heat and electricity locally. Unused electricity can be fed into the national grid in return for remuneration.

          Your benefits of a CHP from Biogas-Ost:
          • high efficiency thanks to optimal combustion
          • low operating costs due to low consumption of lubricant and fuel as well as long maintenance intervals
          • reliability through latest control technology
          • installation into container and buildings possible
        • Desulphurisation

        • Hydrogen sulphide may adversely affect the operation of the CHP, damage the engine and reduce the life of the engine oil. To avoid this, we offer a range of treatment processes for biogas, which occurs during the fermentation in biogas plants:

          The targeted injection (desulphurisation for low sulphur content) of small quantities of fresh air into the gas chamber has enforced as a biological measure for desulphurisation. With the right dosage it can remove up to 95% of the hydrogen sulphide from the biogas. During this type of desulphurisation, the air is blown into the digester through a compressor regarding that injected air volume does not exceed a certain limit in order to avoid the formation of an explosive and flammable mixture.

          The active carbon desulphurisation (desulphurisation for medium sulphur content) has its field of application between the internal and external biological desulphurisation. Their advantage is that hydrogen sulphide can be completely removed by a chemical process. Using a gas analyser, the loading of the activated carbon with sulphur is controlled so that they will be replaced in time.

          In this process the removal of hydrogen sulphide is carried out by catalytically oxidising that is adsorbed on the activated carbon surface. A reasonable application relates to the precision cleaning necessary to clean gas concentrations of < 1 ppm. A sensible use takes place at sulphur concentrations of 200 to 400 ppm. At higher concentrations, the activated carbon is loaded too quickly.

          A trickle-bed reactor is used for the biological desulphurisation of biogas. Here the bacteria put on hold on the inner lying packing, which remove the hydrogen sulphide from the gas. Sulphuric acid is formed. This is pumped into the substrate storage, whereby the sulphur is available as a valuable fertiliser. An intelligent control system monitors gas analysis values, filling level, temperature and pH value of the system and regulates the supply and discharge of fresh water and fertiliser. Pumps sprinkle the packing permanently. This method removes a high amount of hydrogen sulphides by low operating costs.
        • Gas Flares

        • During maintenance or disorders, for example at the gas processing, the electrical feed-in point, or the CHP, the produced biogas cannot be used as usual. In many countries, the law applies that the overproduced gas from biogas plants has to be burned safely and in an environmentally friendly way by using a biogas flare.

          Some local authorities prescribe full automatic gas flares for certain biogas plant power categories and manual flares for small biogas plants. However, it may happen that regulations and laws will be changed in the direction that even for smaller biogas plants also full automatic flare can be required in the future. Due to this potential thread of an unnecessary double investment, we recommend full automatic flares for all kinds of biogas systems.

          Therefore, Biogas-Ost offers the Cle-Flare systems as semi and full automatic flare for biogas plants from 150 kW electrical power that meet all safety requirements defined by the German Biogas Association (Fachverband Biogas e.V.). Thanks to modern technology, the gas combustion proceeds safely, odourless, and extremely quiet. Finally, Cle-Flare systems are made of stainless steel and are durable and reliable in use, even after a long operation break.

          Cle-Flare systems can be installed easily and quickly in new or already existing or retrofitted biogas plants, because they are pre-assembled with all necessary connections.

          Attractive advantages:
          • plug & play system for easy installation and commissioning
          • high-quality burner
          • 100 % combustion of the gas
          • easy to retrofit into existing systems
          • durable stainless steel housing
          • self-assembly possible
          • no monitoring needed with full automatic flares
        • Air Blown Cover

        • A foil cover has various advantages in comparison with a digester covered with a fix roof. The foil can for example be used as gas storage and the digester can be opened by removing it simply. The roof structure can be made of beams or lashing straps. Our complete system including weather protection foil, gas foil, gas level indicator, over-under pressure safety device fits for slurry stores, digesters, secondary digesters and digestate storages. Our supported-air covers are easy to install and can be retrofitted on most round reservoirs.
        • Digestate Treatment

        • After the fermentation process, the residues needs to be prepared as required by local laws for further use as liquid or solid fertiliser, processing, or even storing. For digestate treatment Biogas-Ost offers a separation method. For storing liquid, fermented residues, we recommend a concrete tank or lagoon.

          Furthermore, an environmentally friendly method of treating digestates is to use a biological based waste water treatment, to create a water cycle, and thus reduce the fresh water requirements of a biogas system to a minimum.
      • Performances

          • Measurements

          • In every country of the world, an entrepreneur has to ensure, that any electrical equipment and devices whatsoever, are installed, changed, or maintained only by or under the supervision of a qualified electrician in accordance with legal electrical regulations.

            In this context, all electrical installations and equipment need to be tested at specific intervals for their proper condition regarding fault current, differential/residual current, and voltage fault protection.

            In Germany, this periodic safety tests are considered as fulfilled, when a qualified electrician monitors the system constantly.


            Biological Supervision
            Maintenance & Repair
          • Biological Supervision

          • Changes in the digester biology can have various causes, e.g. quality changes in the existing or the conversion to new substrates. With us you can rely on over 20 years of experience and expertise in the field of biological supervision and plant optimising in financial and biological terms to ensure a production of green energy at the highest efficiency level.

            We offer an initial biological consultation to analyse either your future or existing substrates towards their possible gas yield. Based on the laboratory results, we can provide specific recommendations on how to optimise the process flow of your biogas plant. Thus, even possible process disturbances can be detected and avoided in advance for minimising financial and operating costs.

            For our biogas plant clients, all biological support is included up to one year after start-up containing periodical analysis and optimisation of substrate compositions and feeding times.

            We determine the following standard parameters:
            • pH-value
            • volatile organic acids (FOS-titration)
            • alkaline buffer capacity (TAC-titration)

            Further parameters can be determined any time at extra charge.

            From the initial planning phase, our systems are designed to use a little digester load for a most efficient fermentation process. For this reason, our engineers have developed various process improvements, which can also be integrated into already existing biogas plants and increase gas yield up to 25 %. For more information regarding the biological optimisation, please see hydrolysis and substrate activation.
          • Maintenance & Repair

          • Maintenance, inspections and repairs are constant issues for plant operators - even the best technology cannot do without them.

            After commissioning, we are at your service with our competent team to ensure most smooth operation. The range of services offered includes supply and installation of wearing parts, system modernisation (the so called "repowering") up to plant expansions.

            Do not leave anything to chance and consult our experts about which components are best suited for you. We offer repair service for biogas and wood gas systems, and their components. This also applies for those plants projected and built by other manufacturers.

            With a service contract your system will be checked and tested periodically for its proper technical condition. Any deficiencies found will be immediately reported and repaired in agreement with you.

            This avoids long downtimes and ensures high full-load hours of your plant note that in every case time is money.
          • Visualisation

          • Visualisation in combination with the PLC-programming serves as process monitoring and optimizing tool. Central steering, controlling and consultation by Biogas-Ost are operated by implemented remote maintenance. In this way, the responsible staff member can non-stop supervise your plant and, if necessary, optimize the system’s functioning from afar, as well as support you with words and deeds immediately.

            Therefore, visualisation in combination with the remote maintenance reduces your workload and increases the efficiency of your biogas plant!