Residue treatment
X2conmat™ process

Recover Value. Reduce Costs. Close the Loop.

Illustration X2conmat 1
Introduction

Incinerator bottom ash (IBA) represents 20–25% of the original waste mass generated by a Waste to Energy plant. Managed conventionally, it can be a disposal cost. Treated differently, it becomes a recoverable resource.

X2conmat™ is Kanadevia Inova’s integrated bottom ash processing solution. It transforms IBA into defined fractions of ferrous metals, nonferrous metals and reusable aggregates, maximising recovery value and reducing landfill dependency.

Designed for both wet and dry ash extraction systems, X2conmat™ helps operators maximise recovery, increase metal revenues and reduce potential disposal costs, all while meeting circular economy targets.

Process overview

The X2conmat™ systems are designed for efficient, continuous, and automated operation with minimal operator intervention:

 

  1. Bottom ash is extracted from the grate via wet or dry discharge systems.

  2. The ash is conveyed to screening, crushing, and metal separation stages.

  3. A ballistic separator separates light, low-quality material from dense, metal-rich fractions.

  4. Ferrous and nonferrous metals are recovered by magnetic and eddy current separator technologies.

  5. The remaining mineral fraction is processed into reusable aggregate specifications.

  6. Aggregates undergo controlled maturation to ensure environmental stability, compliance, and performance.

Image X2conmat in real world_01
Graphic X2conmat 1_EN
Output of the X2conmat™ process

Product

Typical
value*

Reuse path

Ferrous metals

~5-10 %

Steel recycling

Non-ferrous metals

~1.5-4 %

Aluminium & copper recycling

Mineral aggregate

~80-90 %

Construction & civil engineering

Fine fraction

~5-10 %

Controlled disposal / limited reuse

*Values vary depending on waste composition,
grate type, discharge system (wet or dry),
and treatment intensity.

Commercial and environmental value

Recover valuable metals

  • High recovery rates for ferrous and non-ferrous metals

  • Additional revenue streams from metal sales

  • Improved quality of recovered materials

 

Aggregates Products

  • Mineral fractions (reusable aggregates) are suitable for infrastructure and civil engineering applications

  • Reduced reliance on primary raw materials

  • Compliance with national and EU reuse standards

 

Reduce Potential Disposal Exposure

  • Significant reduction in landfill volumes

  • Lower disposal costs and long-term liabilities

  • Reduced aftercare obligations

 

Strengthen Sustainability and Compliance

  • Contributes to circular economy targets

  • Reduced CO₂ footprint through metal recycling

  • Alignment with increasingly strict regulatory requirements

Flexible plant configuration

X2conmat™ plants are sized to meet regional market needs. Facilities with capacities of 60–200 ktpa can be integrated directly at Waste to Energy sites to optimise logistics and operational efficiency. Alternatively, regional hub concepts allow multiple WtE plants to aggregate ash streams, achieving economies of scale and enhanced processing performance

With X2conmat™, you can transform bottom ash into a valuable resource.

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Further related technologies

Grate Combustion systems

The combustion system is the best-proven thermal waste treatment technology for mixed municipal, industrial or hazardous waste, and the heart of any modern, state-of-the-art Waste to Energy (WtE) plant.

Flue gas treatment

Incinerating waste produces exhaust gases laden with diverse pollutants. Different processes are used to remove these pollutants before the purified flue gas leaves the plant safely through the stack.

Carbon capture

Capturing carbon dioxide (CO₂) from the flue gas produced in hard-to-abate industries and properly storing it (a process called carbon capture and storage or CCS) is a key component of most governments’ net-zero strategies.

Energy recovery

Recovering the energy content of waste is a key component of WtE technology. Since the process is largely renewable and involves only a low level of emissions, it also helps significantly reduce greenhouse gases.

Residue treatment

Thermal waste treatment produces residues which can be either reused or landfilled. The principal components are slags and ashes, consisting mostly of non-combustible waste constituents such as glass, minerals or scrap metals.

EcoFlex™ WtE plant solution

The new pre-engineered EcoFlex™ solution provides a modern waste infrastructure based on proven in-house technologies, allowing a cost-optimised design of single-line Waste to Energy plant construction and operation.