A comprehensive service that set new standards


Leading in the use of biowaste

BayWa r.e. is one of the leading disposal companies that utilises biowaste in biogas plants. We are your professional partner for the disposal of your biowaste, recycling materials and residues.

Based on an extensive analysis of your disposal requirements we develop holistic concepts and offer you comprehensive solutions for sustainable material cycles: from a container service to collections, transportation and certified ecological utilisation.

Our services at a glance:

  • Designing disposal concepts
  • Provision of containers and container systems
  • Replacement of containers in a cyclical process
  • Transportation to the biogas plant
  • Cleaning and disinfection of containers with hot water or hot steam
  • Utilisation of waste matter in the biogas plant
  • Recycling of valuable materials and disposal of residues
  • Christoph von Jan

    Christoph von Jan

     

    Schradenbiogas GmbH & Co. KG

    T: +49 35343 7863 10

Biowaste and residues

We not only dispose of liquid and semi-solid biowaste that can be pumped, but we also dispose of higher foodstuffs and biowaste in packaging. Packed biowaste is machine separated after arrival. This separates packaging from useful materials.

Biowaste is then supplied to the biogas plant for processing. The remaining packaging and other recycling materials and residues are recycled, subject to their nature and condition.

Biowaste includes the following:

  • Waste from kitchens and canteens
  • Oil for cooking and deep frying
  • Materials in category 3 and higher foodstuffs (with and without packaging)

Collection and transportation by a single contact

Our own vehicles also safeguard seamless traceability and a high quality standard during transportation.

Our fleet of vehicles (extract):

  • 1 Actros 2541 with loading lift platform and gantry 7.45 m
  • 1 Actros 1835 with loading lift platform and gantry 7.45 m
  • 1 Actros 1841 with loading lift platform and gantry 7.45 m
  • 1 Atego 1228 with loading lift platform and gantry 7.45 m
  • 2 Atego 1223 with loading lift platform and gantry 7.45 m
  • 1 Atego 1223 with loading lift platform and fixed box 7.00 m
  • 2 Atego 1218 with loading lift platform and fixed box 7.00 m
  • 1 Atego 815 L with loading lift platform and fixed box 7.00 m
  • 1 Vario 818 D with loading lift platform and fixed box 6.00 m
  • 3 trailers with gantry
  • 13 gantries, 7.45 m
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Hygienic, clean and discreet

We provide our clients with containers that are tailored to their specific requirements. These are regularly replaced by us. For this, cleaned and disinfected containers are supplied as replacements.

Waste from deep fat frying, kitchens and canteens:

  • 60 l barrel
  • 120 l returnable containers
  • 240 l returnable containers
  • Delivery by vacuum truck
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Container for kitchens and canteen waste

Materials in category 3 and higher foodstuffs (with and without packaging):

  • 120 l returnable containers
  • 240 l returnable containers
  • 670 l boxes
  • Delivery on pallets
  • Delivery in freight containers
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Collection box for materials in category 3 and higher foodstuffs

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Transparency, trust and quality

Biogas plants offer opportunities for the disposal of waste that have only just begun to be explored. Around 130 m³ biogas can be obtained from every tonne of biowaste. From this, around 250 kWh power and 500 kWh heat can be generated. Producing biogas from biowaste generates no unwanted or dangerous emissions.

The disposal operators that are part of BayWa r.e. renewable energy are leading lights in the biogas sector. For more than a decade, they have been operating reliable and highly efficient biogas plants that make good use of biowaste.

Assured reliable disposal

By advancing and targeting their quality and environmental management systems, the disposal contractors of BayWa r.e. renewable energy deliver services of the highest quality at all times, whilst protecting the environment to the greatest possible degree.

The biogas plants that make use of biowaste situated at the Groeden, Alteno, Gross Muehlingen and Geislingen sites are authorised in compliance with the German Immissions Act and are registered in line with the EC Hygiene Regulation 1774/2002 or 1069/2009 for the disposal of certain animal by-products not intended for human consumption. Furthermore, the liquid residue resulting from the fermentation substrate has been certified as compost by the RAL quality seal.

100 % utilisation with no waste or waste water

Anaerobic wet fermentation was chosen as the preferred basis for our biogas plants. In this process, liquid and solid biowaste are mixed and turned into power as well as agricultural fertiliser. The result is a complete utilisation of the biowaste employed.

This process has been authorised in compliance with the German Immissions Act and is state of the art. At the same time, the requirements specified by the EC Hygiene Regulation 1774/2002 for certain animal by-products not intended for human consumption are met. Furthermore, these biogas plants are certified to DIN ISO 9001 and as disposal contractors covering the collection, transportation, treatment and storage of biowaste.

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Available throughout Germany

The catchment areas of our biogas plants cover almost three quarters of the Federal Republic. Further expansion is on-going. We would be happy to develop individual disposal concepts for you following an initial appraisal, even if the collection points are somewhat outside our usual collection area. Why not contact us?

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Disposal
area

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Groeden biogas plant

  • Input: 80,000 t/a annum cattle and pig slurry
    30,000 t/a biowaste
  • Digesters: Container capacity 2 x 3000 m³
    Single stage process
    Mesophilic fermentation temperature 37 °C
    Dwell time of biomass around 21 days
  • Hygiene process: 70 °C, 1 hour
  • Biogas: Approx. 17,000 m³/d (methane content 65 %)
  • Energy: Approx. 35,000 kWh/d
  • CHP unit: 3 x MWM TBG 616 units
    Max. output 403 kW electric
    Max. output 403 thermal
    1 x MWM TBG 616 unit
    Max. output 469 kW electric
  • Store: 12,000 m³ fermentation substrate
    1000 m³ biogas
    1250 m³ input biomass
  • Permits: Permit to BlmschG
    Permit to para. 15 of the Regulation (EC) 1774/2002, permit number DE 12 0 62 0005 11
    Disposal contractor, certified to DIN EN ISO 9001:2008
    User number PA 500 00 37
    Producer number PE 500 38 34
    Haulier number PT 500 04 41

Alteno biogas plant

  • Input: 85,000 t/a biowaste
  • Digesters: Container capacity 2 x 3300 m³
    Two stage process
    Mesophilic fermentation temperature 37 °C
    Dwell time of biomass around 25 days
  • Hygiene process: 70 °C, 1 hour
  • Biogas: Approx. 15,000 m³/d (methane content 65 %)
  • Energy: Approx. 30,000 kWh/d
  • CHP unit: 2 x MWM TBG V 16k units
    Max. output 616 kW electric
    Max. output 834 kW thermal
  • Store: 5000 m³ fermentation substrate
    1000 m³ biogas
    1300 m³ input biomass
  • Permits: Permit to BlmschG
    Permit to para. 15 of the Regulation (EC) 1774/2002, permit number DE 12 0 61 0005 11
    Disposal contractor
    User number PA 600 00 43
    Producer number PE 600 05 05
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Alteno biogas plant

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Groß Mühlingen biogas plant

Gross Muehlingen biogas plant

  • Input: 20,000 t/a cattle slurry and biowaste
  • Digesters: Container capacity 2 x 750 m³
    Two stage process
    Mesophilic fermentation temperature 37 °C
    Dwell time of biomass around 21 days
  • Hygiene process: 70 °C, 1 hour
  • Biogas: Approx. 17,000 m³/d (methane content 70 %)
  • Energy:
    Approx. 9000 kWh/d
  • CHP unit: 1 x MWM TBG 6120 V12 unit
    Max. output 732 kW electric
    Max. output 1080 kW thermal
  • Store: 5000 m³ fermentation substrate
    1000 m³ biogas
    1000 m³ input biomass
  • Permits: Permit to BlmschG
    Permit to para. 15 of the Regulation (EC) 1774/2002, permit number DE 15 3 67 0002 11
    Disposal contractor
    Disposer number NA 890 00 55
    Producer number NE 890 05 19

Geislingen biogas plant

  • Input: 40,000 t/a biowaste
  • Digesters: Container capacity 2 x 2500 m³
    Two stage process
    Mesophilic fermentation temperature 39 °C
    Dwell time of biomass around 30 days
    Post digester 2500 m³
  • Hygiene process: 3 x 20 m³; 70 °C, ?1 hour
  • Biogas: Approx. 17,000 m³/d (methane content 65 %)
  • Energy: Approx. 19,000 kWh/d
  • CHP unit: 2 x MWM TCG 2016 V08 units
    Max. output 800 kW electric per engine
    Max. output 600 kW thermal per engine
    1 x MWM TCG 2016 V08 unit
    Max. output 400 kW electric
  • Store: 14,400 m³ fermentation substrate
    2500 m³ fermentation substrate in the post digester
    2 x 500 m³ biogas
    2 x 1000 m³ input biomass
  • Permits: Permit to para. 24 of the Regulation (EC) 1069/2009
    Permit number DE 08 117 0001 11
    User number/Producer number H044002621
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Geislingen biogas plant

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Protecting resources for a better environment

As part of all collection and processing stages it is important to us to prevent the creation of further waste and emissions, to re-use auxiliary materials or to return these fully into the recycling process, whilst minimising necessary resources.

By means of suitable measures, we reduce our water consumption, for example, and use pressurised liquid fermentation residues for treating waste. As an energy generator, the frugal handling of energy is second nature to us. The biowaste is processed in a sealed system. Consequently, the methane gas mixture cannot escape.

Benefits of the use of biowaste in biogas plants:

  • Substituting biogas for fossil fuels helps reduce global warming.
  • Linked CHP units generate heat, steam and electricity. Combined heat and power plants enjoy high efficiencies.
  • Biowaste is processed in a sealed system. Consequently, the methane gas mixture cannot escape. Controlled release as required in the traditional use of slurry does not occur.
  • During processing, the biowaste is sanitised and its odour neutralised.
  • Gasification liquefies biomass, allowing it to be applied more easily using modern equipment. Leakage into subsoil is prevented and nitrite contamination of groundwater is greatly reduced.
  • Degassed biomass is a more effective fertiliser than raw slurry and therefore its use decreases the dependency on mineral fertiliser which has to be extracted by means of energy-intensive processes.
  • A further advantage is that CH4 emissions resulting from the composting of biowaste, for example, are not released because of anaerobic treatment. The consequence of a reduction in CH4 emissions is significant since CH4 has a greenhouse effect that is 30 times greater than that of CO2.