In need of a solid solution
A concrete company in New Zealand was facing challenges with its highly alkaline filtered wastewater. The lab manager, responsible for overseeing the plant’s water treatment, needed a reliable and efficient way to consistently lower the wastewater’s pH levels.
Their existing wastewater treatment pump struggled with variable flow rates due to sediment buildup in the filters. Despite a claimed maximum flow rate of 3500L/h, the actual performance of the wastewater treatment pump fell short.
As filters became clogged, the existing pump’s flow rate would drop. This affected the dose rate of the citric acid used to lower the wastewater’s alkalinity.
To achieve the required pH levels, the lab manager needed a dosing pump that could handle fluctuating flow rates while delivering accurate levels of citric acid.
The challenge
The primary issue was inconsistency. If pH levels do not sit within the optimal range, there is a risk of non-compliance and operational setbacks. Additionally, the lab manager needed a wastewater treatment pump that could withstand both alkaline and acidic conditions.
The solution: MixRite MR2502 Dosing Pump
After discussions with Amir Lahav, owner of MixRite NZ Ltd, it became clear that the MixRite MR2502 would fit the bill. Designed to handle a range of dose rates (0.3–2.0%, 0.4–4.0%, and 0.1–0.9%), the MR2502 offered the flexibility needed to match the plant’s requirements.
According to Amir, “We often use these pumps for pH correction with no problem at all. The MR2502 is built to handle varying flow rates as well as both alkaline and acidic environments.”
How dosing pumps work
MixRite dosing pumps operate by harnessing the pressure of the water line. As water flows through the pump, it triggers a mechanism that draws a precise amount of chemical, in this case citric acid, from a holding tank. This chemical is then injected into the water line at the correct concentration.
Unlike conventional pumps that may struggle with flow variation, MixRite’s proportional dosing means that even if flow rates fluctuate, the amount of acid injected is automatically adjusted. This keeps the pH within the desired range, safeguarding the plant’s operations and water quality.
Wider applications across New Zealand
MixRite pumps are not just confined to concrete testing plants. They are widely in use across New Zealand for pH correction in dam and lake water, particularly at golf courses, nurseries, and where specific pH levels are needed for disinfection and chlorination.
The effectiveness of chlorine-based disinfectants is highly dependent on water acidity. For example, if the pH is too high, chlorine is less effective at killing bacteria and pathogens. This is especially important in environments like golf course irrigation or nursery water supplies, where pathogens can spread rapidly if not properly managed.
MixRite’s proportional dosing technology makes it the preferred choice.
How MixRite came to the rescue
With the installation of the MixRite MR2502, the concrete testing plant achieved:
- Consistent pH correction: Reliable dosing of citric acid, even as filter conditions shift.
- Consistent low dosage: MixRite’s technology automatically adjusts to flow changes, maintaining the correct pH level regardless of minor flow rate fluctuations.
Dosing pumps build to last
The MR2502 is robust, built with materials that handle chemical exposure and variable flow conditions. Even if the flow rate occasionally exceeds 2500L/h, short bursts beyond this rate are manageable, although flow consistency is ideal. Additionally, the pump includes a spare seal kit for easy onsite maintenance and comes with a full one-year warranty.
“MixRite pumps are designed to be straightforward and reliable. Whether it’s a golf course, nursery, or concrete plant, we make sure the water gets treated right.”
MixRite, a versatile and reliable choice
The MixRite MR2502 proved to be a game-changer for the concrete company, delivering consistent pH levels in harsh chemical environments. For lab managers and operations supervisors in similar industries, MixRite provides a dependable solution for precise water treatment.
Would you like to learn more about how MixRite can help streamline pH correction in your operation? Contact MixRite NZ Ltd today.