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Sewaco Ltd

Sewaco Ltd specializes in design, manufacture, supply and construction of purpose built plant and equipment for use in water supply systems and treatment of municipal sewage and industrial waste water.

Our range of products includes:

HYCOVER Static & Rotary distributor systems (from 5 l/s up to 980 l/s flow range) with optional auto cleanse and electro pneumatic belt drive mechanism, respectively.
HYRATE Polytower biofilter systems using modular plastic media for:
- High Rate (BOD/COD reduction), upstream of existing treatment plant.
- Secondary ( BOD removal only or combined BOD removal/Nitrification).
- Tertiary Nitrification applications, downstream of existing secondary treatment processes.
HYRATE Polytowers can easily incorporate natural ventilation or air extraction systems for odour control purposes, as required.
Factory built timber support matrix for secondary modular plastic media support.
Modular media installation and re-packing undertaken by our experienced site team.

Wetherby STW (2016)

Wetherby STW is the wastewater treatment facility for the market town of Wetherby and its surrounding area. It has a population of approximately 23,000 people and is mainly unaffected by seasonal variations other than the local Wetherby Race Course. As there is no direct connection from the racecourse to the sewage treatment works, all racecourse […]

Ashford WwTW (2014)

Ashford WwTW is located approximately 15 miles north-west of Folkestone in Kent. Prior to Southern Water’s £12.6m expansion, the works served a population equivalent of 100,000 people. Starting in June 2012, this extensive project will ensure that the site continues to serve the growing population of this busy catchment, which is forecast to rise to […]

Ashford WwTW (2013)

Ashford is located approximately 15 miles north-west of Folkestone in Kent. The wastewater treatment works currently serves a population equivalent (PE) of 100,000 which is forecast to increase to 130,000 by 2020. Southern Water is investing £12.6m to upgrade and modify the process units at Ashford WwTW to meet future increases in flows and loads […]

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Sectors: Chemical Engineering

Categories: Apprentice

Locations: Hybrid, North West

Apply by: 22 Jun 2026

Contract: Zero Hour

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What we do:

Civil Engineering: Pollution Control | Structural Steelwork

Plant & Equipment: Biological Treatment | Refurbishment | Wastewater Package Treatment Plant | Wastewater Treatment Systems

Process Engineering: Refurbishment