(BAT) Reference Document for the Production of Chlor-alkali ...

Chapter 4
Technical considerations relevant to applicability
Generally, there are no technical restrictions to the applicability of this technique.
Economics
The costs for decommissioning are site-specific. Some examples are given below.
At the Arkema plant in Saint Auban (France), the total costs for decommissioning amounted to
EUR 10 million. These costs included EUR 2.5 million for the dismantling of the cells,
EUR 2.5 million for the dismantling of the other equipment and the building as well as
EUR 5 million for waste treatment and disposal [ 276, French Ministry 2010 ].
At the Borregaard plant in Sarpsborg (Norway), the total quantity of contaminated waste
material was estimated at 1750 m 3 , of which 50 % was contaminated process equipment such as
steel and rubber lined steel [ 227, de Flon 1998 ]. The costs for decommissioning are
summarised in Table 4.9.
Table 4.9: Costs for decommissioning of the Borregaard plant in Sarpsborg (Norway)
Costs
Activity in million NOK in million EUR
1997
( 1 ) euros*
Cell room (removing and bottling of mercury, dismantling
equipment, sand washing of walls, floor, ceiling)
3.6 0.5
Dismantling of pipelines and other equipment in cell room 1.9 0.2
Treatment of mercury-contaminated
solidification, etc.)
waste (washing,
1.5 0.2
Construction and building of landfill 9.0 1.1
Transport and filling into landfill 2.1 0.3
Extra analyses, measurements and safety equipment 0.5 0.06
Total
(
18.6 2.36
1 ) * Exchange rate of October 1997.
Source: [ 227, de Flon 1998 ]
At the Chimcomplex plant in Borzesti (Romania), the total costs for decommissioning including
equipment cleaning, mercury recovery and building confinement amounted to
EUR 250 000 – 300 000 [ 57, EIPPCB 2011 ].
At the Electroquímica de Hernani plant in Hernani (Spain), the total costs for decommissioning
amounted to EUR 120 thousand of which EUR 100 thousand were related to the
disassemblinmg task while EUR 20 thousand were related to external waste management [ 275,
ANE 2010 ].
The costs for decommissioning of the Ercros plant in Sabiñánigo (Spain) are summarised in
Table 4.10.
WORKING DRAFT IN PROGRESS
168 December 2011 TB/EIPPCB/CAK_Draft_1