Departement Mobiliteit en Openbare WerkenMaritieme Toegang

AMORASAMORAS

Antwerp Mechanical Dewatering, Recycling and Application of Sediment

Ir Joris DockxCEDA dredging days2 October 2008

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Overview presentation AMORASOverview presentation AMORAS

1. History2. Process 3. Naming 4. Partners

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Dredging needsDredging needs

- Yearly sedimentation– Major lock complexes 80%;– Sewagesystem;– spill during loading and discharge

activities.- Sedimentation by shiptraffic

“Best guess” 500.000 TDM/year

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Terrestrial

Underwatercel

Sediment

Containment site

Aquatic

TodayHistoryHistory

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Terrestrial

Underwatercel

?

Sediment

Containment site

Aquatic

Future

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Terrestrial

Underwatercel

Sandseperation and

Mechanical dewatering

Sediment

Containment site

Re-use

Aquatic

Today

Future

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

History prospectionHistory prospection1980

1985

1990

1995

2000

•Lagoonfields Waaslandharbour (1989)

•Mech. dewatering beltfilterpress (1996)

2005

•Underwatercel Delwaidedock (2003)

•Building of AMORAS (2008)2010

•Mech. dewatering chamberfilterpress pilottest (2000)

•Underwatercel Churchilldock (2007)

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

State of affairsState of affairsPast actions:– Prospection of dewatering technologies (1999)– Pilot test mechanical dewatering with chamberfilterpress (2000)– Comparison lagooning versus mechanical dewatering (2001)– Location study (2001) – Strategic Plan Right Bank (2002)– Pre design AMORAS (start of engineering sep. 2003)– Environmental impact study (2005)– Selection of candidates (2006-2007) – Building and environmental licence (2006-2007) – Invitation for tenders (2007)Future actions– Building AMORAS (2009 – 2010)– Exploitation AMORAS (begin 2011 for a period of 15 years)– Re-use filtercakes AMORAS asap.

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

LocationLocation

10 km

AMORAS

Conference

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Dewatering area Dewatering area 20 ha20 ha

Disposal area 30 ha

Sandseperation areaSandseperation area

Piping 3.6 kmPiping 3.6 km

Underwatercel Underwatercel

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Sand storage

Cake disposal

Discharge

Thickening

basins

Water treatment

Sand separation Dewatering

Coarse refuse

Sedi

men

ts

Underwatercel

Disposal Site

DewateringDredging Discharge Pipes

Sand Seperation

Acceptance Area

Sand storage

Cake disposal

Discharge

Thickening

basins

Water treatment

Sand separation Dewatering

Coarse refuse

Sedi

men

ts

Underwatercel

Disposal Site

DewateringDredging Discharge Pipes

Sand Seperation

Acceptance Area

Treatement procesTreatement proces

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

Process related reuseProcess related reuse

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

First adventure of Suske and WiskeFirst adventure of Suske and Wiske

Departement Mobiliteit en Openbare WerkenMaritieme Toegang

PartnersPartnersBuilding administration: Flemisch Government Administration, Department of Mobility

and Public Works, Maritime Access.

Stake holder: Port of Antwerp

Contractor:

THV Jan De Nul - Dredging International (DEME), Envisan and DEC

Engineeringbureau: TV MWH – Seghers Keppel

Safety coördination: Coor nv

Environmental Consulting: Bova M.C. nv