THE MAGAZINE FOR THE DRAINAGE, WATER & WASTEWATER INDUSTRIES
SPECIAL WORKS
patented MBBR systems enable the treatment of a high quantity of wastewater using a very small footprint. The bespoke MBBR solution for Heathrow was developed and tested on a small scale at the AnoxKaldnes laboratory in Sweden using sample water provided by Heathrow to ensure that the technology would provide the necessary level of treatment.
The plant also has space to increase the hydraulic capacity with the addition of a third MBBR system, should it be required by Heathrow in the future.
“Working with Veolia Water Technologies on this project has been great,” the Heathrow project team commented. “We had some testing conditions and difficult situations early on during the project but the Veolia project team really turned site performance around.”
“Health and safety protocol on site has also been brilliant and the project team were always willing to help and provide solutions to changes in the works information and delivery of the plant. Any problem we threw at them – the VWT UK team came up with a solution.”
Barry Hallam, Project Manager at Veolia Water Technologies UK commented, “So far, we have received good plaudits from Heathrow and the initial trial of the technologies has also been successful.
“We hope that in 2021 this is a technology that we can provide elsewhere as we have already had a lot of interest from other operators around Europe who are looking to improve the environmental credentials of their airport sites. We expect they will be watching the outcomes of the Heathrow plant closely.”
£3.4M Tarbert wastewater improvement project completed
Scottish Water’s £3.4m investment to help reduce the risk of sewer flooding in Tarbert, Argyll and Bute have been completed.
The successful delivery of this improvement project, which began in August 2020, has increased the capacity of the local sewer network to help tackle historic flooding issues.
The work involved the installation of 350 metres of upsized sewer pipe and large diameter sewers along Barmore Road, Harbour Street, and a short section of School Road.
Two existing Thomas Telford dry stone culvert
the steep hill, and insufficient existing hydraulic capacity on the sewer network, meant that action had to be taken.
“Any sewer flooding causes a great deal of distress for communities, and so it really is great that the increased capacity of the sewer network here will now help reduce that risk.”
Scottish Water and our alliance partner at the time, amey, Black and Veatch, (aBV), recognised that the project would have a significant impact on the village while these essential works were completed.
The project team worked hard to build a good relationship with the community, residents and businesses to ensure the village remained vibrant and bustling and any disruption was kept to a minimum.
Georgina added: “We would like to
thank the whole community for their patience, understanding, and support, working with us to allow the successful delivery this project on time. They took it all in their stride.”
“The engagement with schools, community council and local councillors has been an extremely positive example of ensuring our customers are at the heart of what we do.”
Thanking everyone involved, Councillor Anne Horn said: “The work in Tarbert was carried out professionally, efficiently and, when required, compassionately. We are grateful to all the teams who carried out this major work. They kept us updated and made every effort to keep disruption to a minimum where possible. Thanks again to everyone involved.”
A small number of remedial works, including road markings being painted and the installation of a flower bed, will be completed in coming weeks.
crossings had to be negotiated during the works. Beams were constructed over these culverts to support the traffic while protecting their structural integrity. Seven-metre-deep piles were installed to help support these beams.
These major upgrades will also now help prevent items which are wrongly flushed down the toilet, such as wet wipes, from ending up in the sea during severe storm events.
Georgina Reid, Scottish Water’s corporate affairs manager for the west, said: “There were a few issues which had historically contributed to the flooding in this area.
“The tidal surge, surface water running down FOLLOW US
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