Our core mission is to protect the health of people and the environment

Our overarching goal is to ensure that all people are protected from significant risks to human health and the environment in which they live, to ensure that our efforts to reduce environmental risks are based both on a team of leading experts in the field and on the best scientific information at this time

Municipal waste management is an extremely important activity for the functioning of a community. Every activity results in waste, by-products that cannot simply be left in nature.

Waste collection, with emphasis on selective collection, safe transport to the sorting plant, recovery of materials for recycling and/or energy recovery and maximising the amount of material diverted from landfill, safe disposal of the remaining waste are actions that require not only the responsibility of the whole team but of each individual member. All activities also involve the perpetual introduction of the latest and safest technologies at each level.

Once the waste has reached sorting station, they are subject to recovery procedures for reusable materials.

In this way, inorganic waste, such as PET, plastics, metals and glass, is separated and sent for recycling and reintroduced into the economy, according to the principles of the circular economy. Waste that cannot be recycled but can be recovered for energy is baled and sent to energy-intensive industries such as cement factories. Organic waste is sent to the mechanical-biological treatment plant for aerobic fermentation, and the resulting material is then used as a cover material at the landfill. The waste sorting plant is a first step in efforts to divert as much waste as possible from landfill, to increase the recyclability of materials and to recover their full potential before they are deposited in the landfill.

The organic waste, after being mechanically shredded by chopping, is sent to the mechano-biological treatment plant and deposited in enclosures covered with intelligent, odour-retaining membranes. Biological treatment both diverts a large part of the organic fraction from landfill and reduces the amount of waste landfilled, as the mass of waste decreases by approx. 40% and the volume by about 23 %.

In turn, construction waste is directed to a high-capacity crusher which is used for all non-hazardous solid waste from construction and demolition activities.

Waste that can neither be recycled nor composted is stored in the "landfill", which is actually a huge impermeable vat that does not allow leachate - harmful liquid substances resulting from the natural decomposition process - to enter the soil and groundwater.

The decomposition process is also accompanied by the removal of 'landfill gas', which also has to be collected and disposed of.

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The landfill gas collection and exhaust system is very important for the safe operation of any landfill. Landfill gas (biogas) contains up to 50 % methane, a highly flammable gas. In the absence of this system, landfill gas can self-ignite and burn for days or even, under certain circumstances, cause explosions. Also, without this system, the landfill gas would leak uncontrolled into the atmosphere, with serious consequences for air quality in the area.

The collection system consists of a network of pipes connected to a vacuum-compression station (booster station) which ensures that the pressure in the storage cells is lower than outside and, as a result, the gas does not escape uncontrolled into the atmosphere. Also, the storage gas extraction and collection system leads to a significant decrease in the greenhouse gases emitted and improves air quality. 

Controlled neutralisation of landfill gas can be done either by a controlled high-temperature combustion plant or by its higher recovery in an electricity and/or heat production plant.

Leachate is a viscous liquid produced by the decomposition of waste and it is imperative that it is collected and treated to avoid groundwater contamination. Leachate is collected through a drainage system and reaches the treatment plant by reverse osmosis.

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IRIDEX GROUP

CMID IRIDEX Bucharest

Since the beginning of its activity, CMID IRIDEX - Chiajna has been continuously upgraded with state-of-the-art technologies in the field of municipal waste management and environmental protection.

SÂNPAUL landfill

The Sânpaul non-hazardous waste landfill receives waste from the Râciu, Târnăveni and Bălăușeri transfer stations and waste from the Acățari, Râciu, Târnăveni and Bălăușeri sorting stations at the Sânpaul landfill.

CMID Ciocănești Calarasi

The IRIDEX Integrated Waste Management Centre in Ciocănești serves the population of Călărași county. With a total storage area of 15.5ha, the landfill has a capacity of 3.5 million tonnes, of which cell 1, (C1) 1 million tonnes.

IRIDEX Integrated Environment Centres

Since 1993, IRIDEX has been building ecological landfills for municipal waste
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IRIDEX GROUP

IRIDEX Sorting Stations

IRIDEX Sorting Station Bucharest

Iridex Chiajna waste sorting plant has a sorting capacity of 240,000 t/year Sorted materials: organic waste, PET, plastic, metal, glass; Destination of sorted organic waste: anaerobic fermentation Destination of inorganic waste: recycling

Sorting Station Calarasi

The sorting station building has a surface area of 1,720 m2, a clear height of 10 m and comprises: -receiving and storage compartment - where pre-sorted waste is received, unloaded into two storage bins and loaded onto the underfloor conveyor.

Cristești Mureș Sorting Station

The Cristești Sorting, Composting and Transfer Station consists of 3 separate stations/facilities: Sorting station; Transfer station; Composting station;

IRIDEX Sorting Stations

Since 1993, IRIDEX has been building ecological landfills for municipal waste
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We remain a leader in environmental related industries and an active promoter of circular economy principles. We will become more involved in research projects in areas such as waste management and implement new technologies to further reduce the side effects of landfill processes in the long term. We aim to be more efficient, to make our contribution to achieving Romania's recycling targets.

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