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Silvertown Tunnel London UK

Silvertown Tunnel
One of the largest engineering projects in the world.

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International Award-Winning Engineering Consultants who deliver ground breaking solutions at the forefront of industry best practice.

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Ayesa is committed to becoming a net zero engineering consultancy by 2040

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On 19th October 2023, ByrneLooby will rebrand to Ayesa

ByrneLooby will officially adopt the name of its parent company, Ayesa, a global engineering and technology services provider.

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Cultivating a culture in which individual differences and the contributions of our staff are recognised and valued.

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Bishopton Development - Wetland Treatment System

Wetland Treatment System 1

Ayesa assisted BAE Systems at their large Bishopton redevelopment site to manage a challenging effluent treatment problem using a 2,000 m2 reed bed and integrated leachate management system. Following design and construction, the system was commissioned via biological process and is now operational.

Wetland Treatment System 1

Our Role

As part of the remediation of this former munitions production site, contaminated soils were excavated and placed in a landfill. The leachate arising from the landfill is treated in a wetland system before discharge into the local surface water system. The design incorporated contingencies for any expansion of the landfill. Our plan included degrading leachable contaminants from a parallel soil washing pad before discharge into a nearby surface watercourse.


The integrated system adopted provides for a sustainable solution to deal with intermediate strength landfill leachates, where ammonia concentrations are below the average threshold for conventional treatment plants (<200 mg/l) but above that usually treated in reed beds (5 to 20 mg/l).

Wetland Treatment System 2

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