hertfordshire university - rainwater harvesting case study
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Ecozi Ltd, Unit 2 Churchlands Business ParkUfton Road, HarburyCV33 9QX01926 614 [email protected]
Ecozi Case Study
College Lane Campus - Rainwater Harvesting
Client: Hertfordshire UniversityBuilding Type: Student ForumRoof: 100% membraneCatchment Area: 2,450m²Rainwater Apps: 86 WCs for student and staff useSustainability: BREEAM – Very GoodBuilt: 2009
Ecozi Ltd, Unit 2 Churchlands Business ParkUfton Road, HarburyCV33 9QX01926 614 [email protected]
Ecozi is a specialist rainwater harvesting and grey water recycling system provider.
Ecozi design, supply, install and maintain water recycling systems throughout the UK for commercial and residential customers.
Ecozi work to all industry standards and are members of the UK Rainwater Harvesting Association. With our experience from installation, commissioning and maintenance the service levels offered by Ecozi are amongst the highest in the industry.
Market leading German manufacturers are key supply partners to Ecozi, providing advanced reliable systems with low risks to end customers.
About Ecozi – Rainwater Harvesting Systems:
Ecozi Ltd, Unit 2 Churchlands Business ParkUfton Road, HarburyCV33 9QX01926 614 [email protected]
Rainwater Harvesting Requirements:
Rainwater harvesting technology was selected to help achieve an ‘very good’ BREEAM rating, installed for all WCs. Waterless urinals were used to further reduce water consumption. The building user profile is principally social providing a large venue for student entertainment and social facilities. The building is used 7 days a week with peak demand on WCs coinciding with major social events in the evenings. HyproDuo — the flagship appliance from Ecozi, was installed to provide reliable service with 3-phase Wilo pumps to supply WCs directly upon demand.
Ecozi Ltd, Unit 2 Churchlands Business ParkUfton Road, HarburyCV33 9QX01926 614 [email protected]
Project Challenges:
The 36,000L precast concrete tank was placed in final position by the truck mounted crane in 50 minutes. The precast tank specified by Faber Mansell on behalf of Willmott Dixon was procured by MITIE Engineering Services. The tank will yield up to 770m³ of rainwater per year from the 2,350m² roof area.
The 36,000L precast concrete tank was placed into the final position by truck mounted crane. Only a crushed base is required, with no concrete backfill. The precast tank saved £4,000 by eliminating a concrete base and backfill that would have been required with an alterative GRP tank. By eliminating concrete cure time 2 days were also saved on installation time. The precast tank has a standard surface load rating suitable for a 40t truck, saving additional structural design cost when located under a vehicular area. The HyproDuo factory built appliance requires just 4 pipe connections and 3 electrical plug and socket hook-ups prior to commissioning. Just two connections are required at the tank to complete the simple installation.
The tank was also supplied pre-fitted with a DN200 anti-flood valve and overflow siphon. Prefitting of these components in the tank saved £350 in installation costs be eliminating an access chamber downstream of the tank. Ecozi differentiates its self by offering as many pre-assembled components as possible to reduce installation costs and provide the highest system reliability possible.
Contact Details:
Ecozi LtdUnit 2 Churchlands Business ParkUfton RoadHarburyCV33 9QX
Tel:01926 614 002Email: [email protected]
Visit our website at: www.ecozi.com
Subscribe to our blog: www.harvestingrainwater.co.uk
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