Background
Edgmond Road WWTW is a rural wastewater treatment site in Newport, Shropshire, treating a population equivalent of approximately 2,500. Tertiary treatment is provided on-site by reedbeds. As part of a scheduled maintenance programme, accumulated sludge needs to be periodically removed from the reed beds and the reed beds are replanted.
The Overall Objective
The cleaning and replanting of the reedbeds required them to be taken offline. Consequently, a temporary treatment solution was needed to enable the site to continue to meet its effluent discharge consent while the work was being undertaken. MWH worked with SPS to provide a temporary treatment solution to allow the work to be undertaken while the site continued to operate within consent.
Solution
Siltbuster installed an MBBR20 to take the flow from the inlet to the reedbeds, up to 65m3/hr and to treat it to a standard of less than 30 mg/l suspended solids, 3 mg/l ammonia and 15 mg/l biological oxygen demand (BOD).
