In Dublin's fairer city
15 Jan 2000
Two UK water industry companies will play a major role in an IR£200million project to provide Dublin with a new sewage and waste-water treatment plant. Engineering firm Black & Veatch and Anglian Water are part of the ABA consortium awarded the contract, along with the Irish civil constuction company Ascon.
The `design, build and operate' project is for the largest treatment plant ever built in Ireland, serving a population of 1.7million. The design and build stages are scheduled for completion in early 2002 and will be followed by a 20-year operatonal phase.
Black & Veatch subsidiary Paterson Candy is primarily involved in the design and build element of the contract, with Anglian Water taking on responsibility for the operation of both the existing and new works when open.
The new plant will provide preliminary treatment of screening and grit removal; primary treatment in the form of sedimentation using Lamella plate settlement technology; and secondary treatment using sequence batch reactor (SBR) technology to reduce BOD/COD and nitrification levels.
Sludges generated from the primary and secondary stages will be treated by thickening, hydrolysis, digestion and thermal drying. Disposal options currently being considered include disposal to agriculture and/or forestry.
