Siltbuster’s sweeper waste de-watering system has enabled Alandale Logistics to halve the number of sweeper vehicles it is using on the £3bn Chelsea Barracks redevelopment, reduce the amount of waste to be disposed of by more than 50% and improve clean-up of the 12.8-acre site.
The central London location presents a number of challenges. It involves very deep excavations in clay; groundwater requires continual pumping to keep the work area dry; and this water is highly alkaline and contains suspended solids.
The Siltbuster system dewaters the wet waste. Water is cleaned and has its pH adjusted using a Siltbuster pHD unit. It is then discharged to foul sewer under consent from Thames Water. The solid waste is sent to Westminster Waste for recycling only once every two weeks, reducing disposal costs by more than 50%.
Roland Alla, site manager at Alandale, said: “With each sweeper off-loading wet waste on-site into the Siltbuster system, the drivers can concentrate on sweeping the site rather than spending time stuck on roads.”