Qdos and APEX pumps help treat hydrodemolition water in latest EcoClear machine
17 Apr 2019
Qdos and APEX pumps from Watson-Marlow Fluid Technology Group (WMFTG) are providing the processing power behind the latest generation EcoClear, a treatment system developed by Aquajet in Sweden for filtering hydrodemolition water.
EcoClear enables users to safely discharge blast water back into the environment or recycle it accordingly. Aquajet has standardised on Qdos and APEX pumps from WMFTG since the original machine’s launch two years ago.
Hydrodemolition is a technique that uses high-pressure water jetting for the removal or controlled demolition of concrete. The process is proving increasingly popular as it is 100% free of vibration, which is not only good for the operator, but for the surrounding structure. However, the process produces large quantities of wastewater that must be treated for disposal or recycling.
EcoClear works by treating the hydrodemolition water in different internal chambers, working with flocculation technology to remove the maximum amount of sludge from the water.
The latest generation EcoClear offers a number of important software enhancements to users. Most of the new software functions relate to higher levels of automated dosing in line with flow rates and stability levels within the water. Dosing is facilitated by three Qdos chemical metering pumps.
Ultimately flocculated blast water passes through a lamella clarifier where the suspended solids settle, leaving solids-free water. This lamella clarifier is produced by Siltbuster and is where the primary function of EcoClear – the separation of water from sludge – takes place.
A single APEX hose pump located within EcoClear is used for pumping out the settled solid sludge from the storage hopper.