A system based on large biocell cement structures covered with breathable sheets Q-RING®, which are designed to limit odour emissions.

Automated process control; material movement by a 4-wheeled loader. A reliable, well proven, flexible, low cost, environmentally safe solution with medium capacity. Suited for both composting and biostabilisation of the organic fraction of wastes.

An effective solution with minimal operative costs


The new TURTLE Q-RING® technology is based on Entsorga’s extended experience in composting and biostabilisation using aerated solutions to accelerate the oxidation phase (ACT) of waste decomposition. Entsorga recommends this plant for tonnages below 40,000 tpa of waste input and where flexibility is a major requirement.

The TURTLE Q-RING® technology offers the following advantages:

The TURTLE Q-RING® is a modular solution, where each module is composed of typically one biocell reactor (capacity: 400-500 m3 each), ventilation system, pipelines, process monitoring system (temperature probes) and an automated system to manage the overall process parameters. Each biocell reactor is a cement structure with an aerated plateau embedded within a concrete floor and specially designed roof structures which is covered with the "Q-Ring®" breathable sheets.

The accelerated bio-oxidation of the material is provided by a dedicated system of ventilation that provides the biomass with the required oxygen for the correct development of the bio-oxidation reaction. The accelerated bio-oxidation period is between 8 - 21 days, depending on the desired degree of stability of the material and on the type of the waste being treated.

The system is controlled and managed by an automated system that measures the temperature of the biomass and consequently controls the air flow for each biocell reactor by regulating the frequency converters. It also controls the dedicated moisturing system inside the biocell. All the data is recorded and properly stored in order to have a record of the process for each batch.

The TURTLE Q-RING® technology offers the following advantages:

Modularity and Simplicity

The Entsorga technology allows customers to expand implemented solution as different needs may arise. Simplicity in expansion of capacities.


The Entsorga solution is based on a standardised design, where all details have been optimised so as to provide the most efficient and reliable product, while maintaining ease of use.

Reliability and Efficiency

The process of bio-oxidation (ACT) is continuously monitored by the automated control system, which guarantees the efficiency and overall reliability of the plant. The processed material is sufficiently stabilised so as not to have any unpleasant odour emission. ·Minimal environmental impact The "Q-Ring®" breathable sheets, guarantee an excellent control of unpleasant odours to the surrounding environment.

Short bio-oxidation (ACT) cycle

The bio-oxidation (ACT) cycle for waste biostabilisation is usually 20dd for MSW; for composting (ACT phase) is usually 14dd.

Savings in Construction

The biocells are covered with the "Q-Ring®" breathable sheets, which filter the insufflated air directly into the atmosphere, avoiding the need to construct a dedicated Biofilter for air treatment.

Compania noastra

Colectare si transport deseuri
Sortare si tratare mecanica
Compost decontaminare soluri
Solutii forestiere biomasa


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Proper Recycling este partenerul dumneavoastra in domeniul managementului reciclarii deseurilor specializati in furnizarea de solutii eficiente si complete pentru:
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