AMB Ecosteryl s.a

AMB Ecosteryl s.a

AMB is a private family group which was established in 1947 to design and produce special machinery for the extraction industries. Following the decline of the mining companies and the rise of the environmental sector, AMB moved into the development of new equipment and machinery to be used for recycling, recovery and processing of medical waste. By doing this, AMB contributes to maintaining a safe, healthy environment and promoting sustainable development. AMB Ecosteryl now designs and manufactures equipment that provide a safe and environmentally friendly solution to medium and large hospitals as well as service providers for the treatment of biomedical waste. Ecosteryl products have processed hundreds of millions of kg of biological waste since its first installation in France. We provide an alternative medical waste treatment technology in many countries around the world.

Company details

Avenue Nicolas Copernic, 1 , Mons , 7000 Belgium
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Business Type:
Industry Type:
Hazardous Waste
Market Focus:
Globally (various continents)
Year Founded:
$10,000,000 US - $100,000,000 US

The company has over 10 years of experience in the commercial treatment of medical waste without burning.

Leaders in France and several European countries, we have for clients some of the biggest environmental companies worldwide specialized in waste management.

Executive summary

  • ENVIRONMENT our range of environmental initiatives, including our projects for repurposing and recycling treated medical waste, minimises waste going to landfill and our carbon footprint.
  • VALUE we provide competitive prices with customer-specific requirements, with further cost reduction and financing mechanisms in place where possible.
  • COMPLIANCE we offer products fully compliant with local and international regulations.
  • SUPPORT our sales, professional drafting and engineering team works closely with all departments throughout the business – providing comprehensive levels of customer service, commercial, technical and administrative support.
  • CAPABILITY we are in business since 1947. Over the past 10 years, we have developed equipment for the medical waste management industry.
  • INNOVATION we provide a variety of innovative feature and services, including efficacy and maintenance monitoring equipment for our devices, tele-maintenance service, state-of-the-art control panel and much more.

AMB has perfected a process for the decontamination of hazardous wastes using microwaves. The equipment is characterized by an optimal efficiency: the patented microwave system makes it possible to achieve an homogenous in-depth treatment. Ecosteryl is the answer to the waste removal problems faced by hospitals, problems that have become even tougher due to stricter regulations and the strengthening of hygienic and environmental rules.

The treatment of contaminated medical waste is composed of 2 main phases: waste is first ground up to a diameter smaller than 20 mm. After the grinding process, it is heated to a temperature of about 100°C and maintained at this temperature for 1 hour in order to destroy completely the microorganisms present.

The waste in question is waste that involves risk produced by health care activities: infectious disease, hepatology, and phthisiology departments, isolation units, surgical, obstetrics and gynecology departments, etc. The machines proposed by AMB decontaminate all kind of waste, solid or liquid, including the sharp or prickly ones.

The quality of the decontaminated waste is constantly checked during the whole treatment process whereas a temperature registration allows a tracing of it.

Process (Steps)

The waste in question is waste that involves risk produced by health care activities: infectious disease, hepatology, and phthisiology departments, isolation units, surgical, obstetrics and gynecology departments, etc. The machines proposed by AMB decontaminate all kind of waste, solid or liquid, including the sharp or prickly ones.

The quality of the decontaminated waste is constantly checked during the whole treatment process whereas a temperature registration allows a tracing of it.

Process (Steps)

1. A container (170-200 gallon / 660-770 liters) ) is installed on the handling system (2°). The latter lifts up the container after weighing (1°) and dumps it in the loading hopper (3°). All these operations occur automatically.

2.Via a hydraulic cylinder, the loading hopper opens automatically when a container arrives. The loading hopper has an air treatment vessel (9°, only on the serial 250), which creates a vacuum when it is opened. This one prevents the dust from flying when the hopper is opened. The airflow is washed, disinfected, deodorized and filtrated over activated charcoal. The airflow is rejected outside only after this treatment. The treated airflow is of about 250 m³/h. The hopper also includes level indicators (hopper full and hopper empty).

3. When the lid of the loading hopper is closed, the content of the loading hopper is gradually pushed by a hydraulic ram (11°) and the shredder (4°) of 37 kW is activated. A screen is placed under the latter to get a homogenous size under 20 mm diameter. The shredder is of the 4 axle type including an automatic anti-blocking device (current controlled) reversing of the direction of the operation of the two motors in case of blockage (but also cyclical) in order to unblock the unit and return it to the normal operation.

4. The homogenous waste falls to the under-mill hopper before passing to the processing screw, which brings it to the second phase of the process. This under-mill hopper also includes level indicators.

5. The processing screw is of spiral design. It is enclosed in a tube with a diameter of 4.3 inches / 110 mm. The processing screw brings the products into the microwave oven where it is heated up to a temperature of 100°C. The time needed for transferring it into the processing screw is of about 3 min. The microwave-heating tunnel (5°) is composed of 2 boxes beam of 12 kW (1 box only for Ecosteryl 125). Each box beam includes 6 microwave generators (magnetrons) of 2 kW. The “Box Beam” patent covers the use of microwaves in stereo mode with controlled field polarization in a specially adapted recess. This makes it so possible to heat the products “to the core” with a rapid rise in temperature. The system provides for a temperature measurement at the Microwave outlet to check the treatment quality. A control system adjusts the operation of the equipment in order to maintain the desired temperature at the end of the zone (the microwave power and the screw speed are controlled).

6. The waste enters the last hopper where its temperature is maintained (capacity of 500 l). The heat-insulated hopper (7°) is kept at its temperature level thanks to external heating resistors. The waste stays in this hopper for one hour so that the decontamination can be achieved.

7. At the end of the process, the waste leaves the equipment through an outlet screw (8°) (of the spiral type) in a container.

8. A programmable controller (10°) with a touch-screen allows the automatic operation, real-time monitoring, control and storage of the equipment operating parameters.

Note 1: All accesses to potential hazardous sites are protected by safety switches.
Note 2: All metal structures are made of stainless steel (hoppers, screws, etc.).

Ecosteryl is the answer to hospital waste disposal problems, which are becoming ever more difficult due to stricter laws on health and environment.


  • Maximal level of sterilization: 99,9999% (6log10 reduction of bacteria)
  • Volume reduction of 80%
  • Continuous process with high productivity (can reach 300 kg per hour)
  • Very thin, dry and potentially recyclable ground waste
  • No nuisances:  negligible odors, unrecognizable waste


  • Competitive investment for its high productivity
  • Reduction in storage and handling costs: volume reduction, no hazardous transport
  • Low operational costs (no water, no steam, high shredding technology)


  • Powerful shredding technology: up to 37 kW, low speed, 4 axles, anti-blocking system
  • Well-adapted technology for big structures: large hospitals, hospitals conglomerates, treatment platforms, etc.


  • No vacuum
  • No pressurized vessel (no risks of explosion)

100% Ecological

  • No atmospheric or water pollution
  • Bacteria reduced by 6 log 10 => 99.9999%
  • No chemical emissions

Easy to use

  • Assembly in two days
  • Needs only electricity
  • May be easily relocated

Learn how ECOSTERYL is minimising its global environment impact!

As part of our responsibility, we try everyday to be a leading company in terms of environmental performance by minimising our own environmental footprint. AMB has set high standards in the area of environmental responsibility and strives to achieve performance that does not merely comply with regulations but reduces our environmental impacts. To fulfill this goal, we must protect the environments in which we work and live and also focus on something really important : waste management. Waste that is not properly managed can create serious health or social problems in a community. Our engineers have thought about this when they developed a clean technology called ECOSTERYL for the treatment of medical waste combining, in a continuous process, powerful shredding with dry and microwave core-heating of waste.

We have a responsibility to take care of our planet and preserve its beauty, resources and strength for future generations.Our environmental efforts focus on three important issues:
AMB's quality management system

Cutting edge technology

Our devices treat the most effectively waste that involves risk produced by health care, known as biomedical wastes, and decontaminate all kind of waste, solid or liquid, including the sharp or prickly ones.

Environmental Performance & Control

Microbiological efficacy : Based on different tests that have been carried out, we can assume that the environmental incidence on water and air of the Ecosteryl process is negligible. An assessment of the microbiological efficacy of the process was conducted by the French Conseil Supérieur d'Hygiène Publique and Pasteur's institute.

Dust : A suction system (Serial 250 only) designed to keep dust from being blown over the loading and removal hopper. The air treatment by washing, disinfection, deodorizing and filtration over activated charcoal preserves the quality of the rejected air.

Wash water and treatment water : Town water is fed through a disconnector, thereby preventing any fluid from returning to the drinking water system. The wastewater is disinfected before its rejection into the sewer.

Environmental compatibility : No harmful air emissions or liquid discharges after the treatment of biomedical waste.

Sustainable development policies

  • By encouraging its employees to adopt responsible practices and promoting their social participation;
  • By encouraging different audiences to behave responsibly.
  • By reducing its emissions of greenhouse gases;
  • Using energy and natural resources responsibly;
  • Promoting recycling and recovery of construction and maintenance products in a sustainable manner;
  • By promoting environmental management of AMB's infrastructure;
  • By adopting a program of waste management;