The NeutraliZer™ developed by Smart Storm, is a unique, mobile, in-line treatment plant that uses just CO2 to continuously neutralise concrete washout water; it is available to purchase or to hire.
The concrete wash water issue
The pH of concrete wash water from construction and building sites is highly caustic (pH 12-14) which makes it extremely damaging to the environment if discharged to the watercourse. It is also illegal to discharge without an acceptable pH level (usually 6-9).
Equally this applies to concrete wagon washouts to sewer and surface drains, where it is usually illegal to discharge below pH 6 and above pH 10.
It is not practical to simply dilute the concrete washout with clean water as 10,000 litres of clean water would be required to reduce 1 litre of concrete wash water down from pH 13 to pH 9. This high alkaline wastewater is customarily treated with hazardous chemicals on a batch basis.
NeutraliZer™ CO2 concrete washout treatment
The NeutraliZer™ works by first monitoring the caustic washout with Smart Storm’s USM pH meter and based on these readings, carbon dioxide (CO2) is automatically dissolved into the wash water flow to reduce the pH to a safe level for discharge; all this happens on a continuous flow basis.
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 effluent leaving the unit, which can treat up to 25m3 of wastewater per hour.
CO2 dissolved in water is slightly acidic so is ideal for neutralising concrete wash water and CO2 self-buffers so cannot overdose no matter how much is injected.
- Continuous processing system using an advanced in-line mixer
- Skid-mounted and highly mobile - small footprint
- No need for hazardous chemicals or batch treatment
- Fully automated with alarm beacons (pH/out of gas)
- Rugged construction
- Simple to install and user-friendly operation
- In-built storage for 8 gas bottles.
- Integral flowmeter
- Remote Cloud-based monitoring
- Up to 25m3/h flow rate
- Construction and building sites
- Concrete wagon wash outs
- Demolition sites
- Concrete paving and brick manufacturing
- Mortar bucket wash outs