Veolia’s Demineralisation Plant for new Multi-Fuel Power Station
Veolia Water Technologies
(Veolia) has completed a high pressure boiler make-up water treatment plant for
Multifuel Energy Ltd’s new £300m power station at Ferrybridge, West Yorkshire.
The station can generate 68MW of low carbon electricity using a range of fuels
including municipal solid waste, commercial and industrial waste and waste
March, following a twelve month proving trial, the make-up water treatment
plant was handed over to Main Contractor Hitachi Zosen Inova, whose Head of Energy Systems, Philipp Ziegler, was pleased with
the result. “The plant was delivered on schedule” he said, “and it has
performed outstandingly”. The bespoke
engineered plant was designed to treat a blend of borehole and towns mains water. It consists of two
streams, each capable of producing up to 8m3/h of high purity
demineralised water, which can operate as duty/standby. Each stream has duplex
softeners and a MegaRO reverse osmosis unit followed by CEDI-VNX continuous
electrodeionisation and final non-regenerable mixed bed polishers charged with
nuclear grade resin to meet the treated water specification of conductivity
<0.1µS/cm, silica <5µg/kg and dissolved organic carbon (DOC)
<0.1µg/kg. A mobile rig allows in situ cleaning of the RO membranes. The plant is skid mounted to the highest possible
degree and factory tested to reduce site installation time, and is fully
compliant with Hitachi’s specifications. It is controlled by a motor control centre with a process control
section using a Siemens S7-300 programmable logic controller which
interfaces, via a Profibus DP communication link, with the site DCS.
Visit www.veoliawatertechnologies.co.uk/processwater/medias/diagrams/boiler-feed-power.htm for more
information on demineralisation systems or call Veolia Water Technologies on 01628 897000.