The Incinerator Ash Company

Optimisation of bottom ash treatmentRogier van de WeijerBusiness Development Director

The Incinerator Ash Company

Goals of recycling bottom ash

Convert ash into valuable raw materials

1. Recovery of (non ferrous) metals down to 0,5 mm

2. Reuse ash minerals in alternative markets (NL – Greendeal - non IBC)

3. Decrease carbon footprint for WtE facilities

Technical challenges:

• Wet de-slagging at WtE facility

– This makes the ash stick together tightly

– Embedded fine NF particles are hidden in clogged minerals

• Separating heavy / light non ferro’s:

– Conventional sink-float operations are not build for particle sizes < 10 mm

• Practical knowledge and experience (how does theory work out in practice ?)

• Discharge of ash residue that is qualified as waste (EURAL Code 19.12.03)

Financial challenges:

• Optimise the balance between costs (CAPEX and OPEX) and revenues related with bottom ash recycling

• Make use of low cost technologies and create the highest possible value from recovered materials

Strong foundation

• Inashco BV is a 100% Fondel company.

• Valorization of DUT technology

• Continuous R&D at DUT laboratory (CiTG)

Plants in Europe

Heros Sluiskil560.000 t/a

AEB Amsterdam300.000 t/a

VGM Zevenaar100.000 t/a

Attero Wijster180.000 t/a

Indaver Doel100.000 t/a

Attero Moerdijk270.000 t/a

Twence Hengelo170.000 t/a

MAV Erftstadt250.000 t/a

Etappi, Vaasa30.000 t/a

CUF Maastricht

CUF Sluiskil

Mobile Test unit

J & N, Mila150.000 t/a

HSY, Helsinki30.000 t/a

Planned / Under construction

In operation

Company characteristics

Inashco characteristics:

• Installed base of 9 BA processing installations and 5 installations under

construction

• Installed base of 2 Central Upgrade Facilities to further separate non ferrous

concentrate into high quality scrap products

• Current annual treatment > 2,5 million tons of bottom ash,

Capacity under construction > 1.000.000 ton

• Employees > 120

Conventional BA treatment proces

Sink / Float

HNF

LNF

Relative low efficiencyHigh % NF metals rest in Bottom Ash

BottomAsh

Conventionaltreatment

Sieve / Magnets / ECS

NF concentrate sold to Sink/Float

Fine HNF & LNFlost in Mineral fraction

Inashcotechnology

4 8 12 16 2000%

100%

fraction (mm)

NF Metal recovery

conventionaltechnology

Added value in fine fraction

Technical challenges

Knowledge

• Theoretical knowledge of the Delft University of Technology

• Experience of current annual treatment of > 2,5 million tons of bottom ash

• Characterisation of specific bottom ash flow:

– Inashc0 Laboratory:

• Moisture content

• Particle size distribution

• NF contents (heavy and light NF characterisation)

– Operatability test

Installation examples

Bottom ash ���� Mineral aggregates

Dutch legislation - CUR 116

• 20% - 30% replacement of primary

gravel and sand

AEC Aggregate application

AEC aggregates replace primary gravel and sand in concrete products

AEC Aggregate application

Concrete blocks Sewer pipes

Central Upgrading Facility

• Further treatment of NF concentrate from ADR operations

Central Upgrading Facilities

Financial Impact

• ADR Technology:

– Low cost

– No impact on environment (no waste water, no extra dust, marginal use of

electricity)

• Central Upgrading Technology:

– At same cost level as sink-float operations

– No impact on environment (no waste water, no emissions, marginal use of

electricity

• High quality scrap represents best possible value from available ash contents

• Off take through Fondel marketing and trading channels guarantees

premium prices

ADR build up at AEB Amsterdam

To summarise

Convert ash into valuable raw materials

1. Recovery of more non ferrous metals down to 0,5 mm

2. Reuse ash minerals in alternative markets (NL – Greendeal - non IBC)

3. Decrease carbon footprint for WtE facilities

Questions ?

www.inashco.com

Rogier van de Weijer

Business Development Director

Inashco BV

Portnumber 3115

Petroleumweg 32d

3196 KD Rotterdam

The Netherlands

T +31 10 23847507

E: [email protected]

Don’t waste your Ash!