Case Study: 4R Reedbed
4R Group Achieves Racecourse Reedbed Refurbishment
Introduction
4R Reedbeds were contacted to refurbish a reedbed linked to an onsite sewage package treatment plant at a racecourse in Yorkshire.
The effluent generated on site from staff and race meeting attendees is initially treated by means of an effluent treatment plant. Discharge from the effluent plant flows into a series of reedbeds for final polishing prior to discharge to surface water.
OBJECTIVE
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Site Visit
4R staff initially attended site and met with the maintenance team to assess the current situation. The whole site was overgrown and there was little evidence of any actual reed growth as the reedbeds were smothered by nettles and other pernicious weed growth It was apparent that the reedbeds (12m x 8m each) were designed as a horizontal flow system, whereby the effluent flowed through a gravel media to the outlets in each corner. However, due to heavy weed infestation it was not obvious how the inlet/outlets operated
Proposal
Following the initial site visit a proposal was put to the site management team to fully refurbish two of the four onsite reedbeds and restore functionality to the on-site treatment process.
The work was planned to take place over a period of 2 weeks in between race meetings, so there was not a peak flow into the system while it was being refurbished.
Works Undertaken
Commissioning
The final operation was to commission the system, setting the adjustable outlets in their chambers at the appropriate level, ensuring the reeds had sufficient water to become established, but not submerged.
From start to finish the whole operation took 8 days and 4r Reedbeds have been appointed to carry out a regular inspection and maintenance program to ensure the system operates to the original design specification.
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