Transcript Saint Barthélémy Waste Incineration and Potable water

Gérard Canton
Deputy Managing Director, SIDEM
IRENA Session
Martinique, 22-24 June 2015
Project presentation
 Background:
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Saint Barthélemy (Fr.) is a high-end touristic island of 24 km² located in the French West Indies 250 km
from Guadeloupe
Governed by strict environmental policy and in order to preserve its unique character, the island was the
first of the region to invest in a modern waste collection, recycling and incineration plant
Following hurricane “Luis” in 1995 and large damage to the plant a new facility was completely
redesigned and implemented from 2000; it was also decided to make use of the waste heat from
incineration in order to produce potable water by evaporation
 Waste and Potable Water Plant Design criteria
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Management of all kinds of waste: municipal waste as well as ordinary industrial waste and tyres
Sorting and withdrawal of glass, batteries, ferrous and non-ferrous waste
Ability to withstand hurricanes and long term life cycle
A maximum amount of steam shall be generated from the waste heat from incineration: production of 4
tonnes of steam per hour as a minimum in order to feed the desalination plant
The desalination plant shall make use of the most efficient thermal desalination process in order to
maximise the production of potable water from the produced steam: SIDEM Multiple Effect Distillation
(MED) evaporator was chosen, able to produce 1,200 m³/day of potable water
Compliance with most stringent environmental standards (treatment of fumes)
IRENA Forum - Martinique - 22 to 24 June 2915
Plant description
Steam generation
(tons/hour)
Waste incinerated
Steam generated
1.5
4
Heat Recovery
SIDEM 11TE1200 Evaporator
Sorting, recycling
incineration
UIOM
Households
Seawater
desalination
UCDEM
Waste handled
Water production
(tons/year)
(tons/hour)
Municipal waste
Glass
4,328
716
Batteries
18
Tyres
78
Ferrous
Non-ferrous
Steam used
Potable water
960
57
Waste
4
50
How MED works – Principle of distillation in one cell
Spraying system
Seawater
is sprayed at the
top of the
heating tubes…
Each cell of the MED unit
consists of:
 Heating tubes
 Spraying System
included in a chamber
This
process
continues
in the
following
cell maintained
at
a pressure
In the
last cell
the steam
generated
is condensed
and recovered
as
maintained
at accurate
Distillate
corresponding
lower boiling point depression allowing
parttoofadistillate
is obtained
seawaterafter
to evaporate at a
condensation
of the
given temperature
(< 70°C to
control
scaling)
steam
in the
heating
tubes
Cell chamber
Steam
from previous cell
enters the heating
tubes…
Heating tubes
IRENA Forum - Martinique - 22 to 24 June 2915
Brine
is collected at the
bottom of the cell and
rejected to sea…
Steam
is generated by
evaporation of the
seawater at the contact of
the hot tubes; it will be
used as heating steam of
following cell
Project results and further applications
 Completion of the project in 4 years from Design Competition to Commissioning of
the plant
 Reliable operation of the plant since 2001 and production of potable water at stable
rate of 1,200 m³/day using the steam produced from waste heat recovery of
incineration
 With a GOR of 15.6, the SIDEM evaporator is one of the world’s most energy
efficient
Combined Waste Incineration and potable plant is well
suited for implementation in energy-poor islands of the
Caribbean
IRENA Forum - Martinique - 22 to 24 June 2915