A positive impact on everything we touch
Over 1800 dedicated people nationwide
Providing critical infrastructure for the UK
A positive impact on everything we touch
Over 1800 dedicated people nationwide
Providing critical infrastructure for the UK
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Severn Trent Water

Retford STW

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We completed a project at Retford STW for the replacement/refurbishment of expired life items and the addressing of operational risks. The project has made a drastic improvement to the sewage treatment process at Retford and significantly reduce STW operator time required on the site.

Our customer is more than happy with the outcome, not only was the project innovative, it was also the TOTEX solution.

Key Information

Project

Retford STW

Client

Severn Trent Water

Value

£1m

Contract

NEC 3

Delivery Business Unit

Water

Benefits at a Glance

Community Engagement
Focus on local residents in design
Collaborative working

Challenges

Retford STW is located to the north of the town of Retford, Nottinghamshire. It serves a population of approximately 26,000. The project was to address capital maintenance works which includes the replacement/refurbishment of expired life items and the addressing of operational risks. The inlet works screens were capturing approximately 15% rags which was creating a high impact on the treatment process and creating high operator involvement on a daily basis with high OPEX cost.

Solutions

An innovative DfMA approach to the refurbishment of the inlet works was taken to reduce the operational and process impact of the scheme during the construction phase.

A stainless steel tank and frame was designed and manufactured which would house the new inlet screens. The whole assembly would be delivered to site, pre-assembled and be lowered into position within the inlet structure. High level scaffolding was designed and erected to enable temporary pipework to be installed to control and bypass the sewage flow during the construction phase. This eliminated the need for high risk issues associated with overpumping.

Collaborative working and a factory thinking approach enabled safe but fast construction on site, delivering the project ahead of a very tight programme and minimising the risk to the sewage treatment process.

Results

The project has made a drastic improvement to the sewage treatment process at Retford and significantly reduce STW operator time required on the site.

Our customer is more than happy with the outcome, not only was the project innovative, it was also the TOTEX solution.

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