MARKETS/SERVICES
Introduction
Market Sectors
Services - Buildings
Services - Environment
■	Air Quality Management
■	Archaeology
■	Asset Management
■	Aviation
■	Coastal Management
■	Contaminated Land
■	Dams & Reservoirs
■	Development Infrastructure
■	Ecology
■	Environmental Engineering
	■	Lowestoft Wastewater
■	Environmental Impact Assessment
■	Environmental Management
■	Environmental Monitoring
■	Flood Risk Management
■	Geotechnical
■	Pipelines and Water Distribution
■	Renewable Energy
■	Sewerage
■	Small Hydro Power
■	Waste Management
■	Water & Wastewater Treatment
■	Water Management
Services - Transportation
Capabilities A - Z

Environment Brochure

Download our Environment Brochure (PDF)

Lowestoft Wastewater Treatment Works

Lowestoft, UK

Project outline

Provision of new wastewater treatment facilities for using innovative treatment technologies in a sensitive location requiring extensive architectural treatments.

Contract value

£50m

Key features

Innovative treatment technologies
Covered works
Design and Build

Skills utilised

Integrated team working in design and building alliance
Water retaining structural design
Functional arrangement of treatment processing
Civil and Structural Engineering

Project detail

Anglian Water have provided a new wastewater treatment centre at Waveney, which serves Lowestoft and the surrounding area. This area includes a significant trade effluent from a food processing plant. The major part of the treatment works is constructed within an enclosed dome, 160m by 115m, to minimise the environmental impact of the wastewater treatment works on the surrounding district.

Total loading on the plant is 390,000 population equivalent of which 250,000 is from trade effluents. Full flow to treatment is 64,000 m³/day (740l/s).

All flows are pumped to the inlet works where preliminary treatment is provided separately for the trade and domestic waste streams. Trade effluent is then given separate pre-treatment comprising settlement in a lamella separator and digestion in an anaerobic reactor before passing to secondary treatment. Primary treatment for domestic sewage is effected by four lamella separators.

Three separate secondary treatment streams were developed by the team so that Anglian Water can appraise new treatment systems and optimise future treatment strategies: 60% of the flow is treated in a conventional activated sludge plant, 20% in a Moving Bed Biological Reactor, with sludge separation by Dissolved Air Flotation and the remaining 20% is treated in a Membrane Bioreactor Plant. The trade effluent loading on the plant is seasonal and during certain periods of the year one or more of the treatment systems can be temporarily shut down.

All sludge is thickened prior to pasteurisation and mesophilic digestion and is then dewatered prior to disposal off-site.

Faber Maunsell undertook detailed civil design for all parts of the treatment plant except the dome structure. This included all water retaining structures both inside and outside the dome, steelwork buildings within the dome, pipelines and all other siteworks.

For more information, please contact David Smith