Composting plants (closed system/loop)

Oxygen stabilization of waste

kompostowana frakcja podsitowa

SIGMA composting plants are an effective technology for the stabilization of the under-screen fraction, separated from mixed municipal waste, as well as for the processing of green waste from selective collection. This technology is based on the use of closed, reinforced concrete bioreactors, with the automatic aeration and irrigation system of the deposit, which enables process optimisation.

Application

SIGMA composting plants are an effective technology for the stabilization of the under-screen fraction, separated from mixed municipal waste, as well as for the processing of green waste from selective collection. This technology is based on the use of closed, reinforced concrete bioreactors, with the automatic aeration and irrigation system of the deposit, which enables process optimisation.

The use of prefabricated components enables the installation of the composting plant to be located on a concrete pad or reinforced ground. Such structures reduces the installation time and also allows greater flexibility. The installation can be relocated of modified to increase flexibility and capacity at any time.

 

Oxygen stabilization of waste

kompostowana frakcja podsitowa

SIGMA composting plants are an effective technology for the stabilization of the under-screen fraction, separated from mixed municipal waste, as well as for the processing of green waste from selective collection. This technology is based on the use of closed, reinforced concrete bioreactors, with the automatic aeration and irrigation system of the deposit, which enables process optimisation.

Application

SIGMA composting plants are an effective technology for the stabilization of the under-screen fraction, separated from mixed municipal waste, as well as for the processing of green waste from selective collection. This technology is based on the use of closed, reinforced concrete bioreactors, with the automatic aeration and irrigation system of the deposit, which enables process optimisation.

The use of prefabricated components enables the installation of the composting plant to be located on a concrete pad or reinforced ground. Such structures reduces the installation time and also allows greater flexibility. The installation can be relocated of modified to increase flexibility and capacity at any time.

 

reaktory kompostownicze Sigma S.A.

Technical characteristics

Our oxygen stabilization technology includes:

  • recirculation of water leachated from chambers, biofilter, ventilation condensate,
  • water circulation replenishment with fresh tap water,
  • cyclical aeration with fresh air,
  • maintaining the temperature in the range ensuring the correct flow of the process,
  • water spraying, 3 cycles per day,
  • possibility of bio-drying in chambers, also use of rainwater and leachate from the landfill for spraying,
  • optional: two-stage purification of post-process air (scrubber + biofilter) and circulating water purification in trommel screen.

 

kontenery kompostownika

Reactors' system

Reactors made of concrete or prefabricated concrete of the highest chemical resistance class XA3. Cover made of prefabricated hollow-core slabs.

Aeration system

Air suction system performed through perforated parallel pipes ensuring that odors are directed to the biofilter and are prevented from escaping.

Spraying system

Air suction system performed through perforated parallel pipes ensuring that odors are directed to the biofilter and are prevented from escaping.

 

wizualizacja systemu kompostowania

Leachate system

The leachates from all chambers are collected in one tank, together with the leachates from the biofilter and ventilation system. As a result, nearly 100% of the water is recirculated. Replenishing with tap water is only required in case of excessively dry waste.

Control system

The automatic control system ensures appropriate aeration and humidity conditions, depending on the temperature and oxygen content in the waste stream. The parameters are monitored by a system of appropriate sensors. The control program analyzes the received data and selects the optimal conditions for carrying out the process. The system enables archiving of all parameters. It is also possible to transfer data and remotely control the entire process in real time via the Internet.

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