Supporting a Wastewater Treatment Heat Recovery Project from Design to Delivery

The customer was developing a wastewater treatment and desalination process powered by waste heat recovered from boiler flue gases. The project required a heat recovery solution to fit into a wider, technically complex process system.

This was not a standard product enquiry or simple price request. It involved evolving process information, multiple rounds of technical review, and coordination with a wider project team.

Growing focus on programme, site readiness, and delivery risk meant the customer needed a supplier that could engage with changing technical requirements, review updated drawings and P&IDs, validate performance assumptions, and help move the project from concept towards a deliverable package.

Turnbull & Scott brought in-house chemical and mechanical engineering expertise to work closely with the customer as the design evolved, with all work carried out in conformance with EN 13480 (Metallic Industrial Piping) and BS EN 13445 (Unfired Pressure Vessels).

Economiser drawings were submitted for approval and reviewed alongside updated P&IDs, with design refinements including relocated valves, clearer inlet and outlet connections, additional gauges and drains, removal of redundant components, and clearer boundaries around out-of-scope items.

Operating conditions were reviewed against revised requirements, with thermal performance a key consideration throughout: flue gas required to remain at or above 160°C, process water entering at 150°C, and logged temperature data reviewed to verify expected heat recovery performance.

As the project progressed, focus extended into delivery planning, covering simulation under revised conditions, a draft programme of works, RAMS preparation, supplier coordination, site access requirements, and a practical review of lead time versus delivery risk, with all activities aligned to CDM site regulations to ensure safe and compliant installation.