- Home
- Companies
- Enviroflex GmbH
- Products
- Enviroflex - Membrane Covered ...
Enviroflex - Membrane Covered Composting Plant for Waste Treatment
Enviroflex GmbH offers a cutting-edge composting solution through its membrane-covered composting plants. The system integrates a pressurized aeration process in concrete structures (comprising boxes or tunnels) sealed with semipermeable membranes. This technology is engineered for cost-efficiency and ease of construction, effectively minimizing odors, insect attraction, and bird interference. It features a robust three-layer laminate membrane with an antibacterial inner layer, UV-stabilized outer layer, and a breathable intermediate layer, ensuring vapor permeability and odor retention while preventing rain ingress. The plant comprises reinforced concrete compartments for composting, complete with aeration ducts enhanced with metal profiles and slotted plates to ensure optimal airflow without waste intrusion. Process monitoring is facilitated via a control panel with probes for temperature, oxygen, and pressure. The plant is adaptable for diverse applications such as municipal solid waste, biowaste, and sewage sludge composting, and it allows for biological stabilization and RDF production.
These plants can be used for these applications:
- Composting of the organic part of MSW
- Composting of Biowaste and green waste composting
- Composting of digested or sewage sludge
- Biological stabilization to reach the parameters of landfill directives
- Biological drying prior to incineration
- Production of refused derived fuel (RDF)
The applied three-layer laminate is based on an antibacterial inner layer, a UV-stabilized outer layer, and the proper functional and breathable membrane as an intermediate layer.
Due to the combination of these layers to the composite material, the achieved performance allows high breathability for vapor, highest possible retention concerning odor, dust, and germs, prevention of rainwater penetration, sturdiness in handling, and long product durability.
To improve the wear resistance, the outside edges are protected with tarpaulin which also holds the loops and back straps for easy handling, winding, and fixing. To ensure the correct insertion of the probes into the substrate, necessarily required for an appropriate process control, special openings are stitched off.
Enviroflex GmbH can offer this technology in the following configuration:
- Windrows or piles: simplest solution, pressurized aeration on a sealed surface.
- Concrete Tuneless or Boxes: The membrane is spread over the surface of the substrate between the concrete sidewalls an entirely seals the box.
Depending on the size of the membrane, the handling is either done manually or mechanically operated by designed cover placement.
Equipment of the Plant
Composting Boxes or Tunnels
The plant consists of several compartments (Tunnels or boxes) with different sizes and volume. Each box is individually filled, aerated and discharged. The box slab and walls are made of reinforced concrete that withstands the temperature of composting as well as the operation by wheel loader.
Aeration Ducts with Slotted Plates
The slab of each box is holding two aeration ducts. The ducts are reinforced with metal profiles and closed with slotted PE plates. The slots have a size to allow sufficient air to go through from the ducts into the waste body and avoid waste falling through it into the ducts as good as possible. They have to be cleaned and checked regularly.
Switch Cabinet with Control Panel and Probes
The switch cabinet holds the entire control system and the monitor/panel for the visualization of the process. Also, the cables from the Oxygen and temperature probes as well as the pressure indicator are connected to a switchboard which is adjacent to each box.
Temperature: Each box has a temperature probe with cable. The probe is measuring the temperature at 5 levels of the pole
Oxygen: Each box has an Oxygen probe with cable The probe is measuring the rel. Oxygen content in the porous air inside the waste body.
Pressure: For supervision or proper aeration conditions in a box, the pressure indicator is measuring the pressure inside the hose at the manifold.