Mobile pH Balancing Unit
Approached by a pump hire firm working on the Thames Tideway project, Smart Storm was commissioned to design and build a mobile unit for pH balancing on a transient construction site. The use of acid is restricted as a hazardous substance on the site, so CO2 was the preferred option for balancing the highly alkaline wastewater.
The Thames Tideway project is a 25km super sewer being built under the River Thames to ease pressure on the existing 150-year-old sewer system. Currently millions of tonnes of raw sewage spills, untreated, into the River Thames each year. Dr John Duffy, Company founder and Managing Director, says, “The Thames Tideway is a huge project, it is testament to our growing reputation in the water and wastewater industries that we were approached to design and manufacture a bespoke unit. We have utilised our own water monitoring and control instruments in the design and introduced other industry leading technology in the other elements”.
The unit has been designed to treat the concrete sludge water commonly produced on a construction site. The pH levels are first monitored by Smart Storm’s USM pH meter. Based on these readings, CO2 is then introduced to neutralise the wastewater before discharge. Smart Storm’s USI, a multiple water parameter meter, provides a 7” touch screen interface for user friendly operation. A Magflow flow meter monitors the flow leaving the unit, which can treat up to 25m3 of wastewater per hour. All of this sits within a 2.5m x 2m x 1m steel housing, which can be moved by forklift truck or crane.