Caustic replacement

A safe and cost effective alternative to the use of sodium hydroxide (caustic soda) for wastewater alkalinity and pH adjustment.

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  • Feel you are paying too much for your alkali?
  • Looking at a safer alternative to caustic soda for pH control in your nitrification process?
  • Want a greener alkaline additive for your wastewater treatment?

More alkalinity than caustic soda

When an alkaline compound dissolves in water it produces hydroxide ions, OH- . These ions are responsible for the alkalinity of the solution.

Because Magnesium Hydroxide Mg(OH)2 provides two hydroxides for alkalinity compared to one with NaOH caustic soda, the usage rate for Mg(OH)2 is much less than that required for NaOH.

Lower cost-per-pound ≠ cheaper

While AMALGAM-60 is typically more expensive then 50% NaOH on a “price per unit” basis, it is significantly less expensive in use – because every 1.0 lb of 50% NaOH can be replaced by 0.6 lbs of 60% Mg(OH)2 to provide the same number of moles of hydroxide (OH-) for pH neutralization.

AMALGAM as a safer, greener and more cost effective alternative to caustic soda

AMALGAM has a higher neutralising value per pound when compared with caustic whilst being significantly safer to handle than other traditional alkalis, making it a very safe and cost competitive option.

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Safer and greener means more savings

Unlike caustic soda, AMALGAM is non-hazardous and non-corrosive, which makes it easier and safer to handle. Spill is not reportable.

Because magnesium is a macronutrient – it is the core element of chlorophyll (makes everything green!) – it is also beneficial to the environment while sodium is a salinity hazard.

Magnesium also has coagulation properties that sodium does not. This can result in reduced sludge volume and reduced sludge hauling fees.

CAUSTIC (SODIUM HYDROXIDE) IS STRONGLY IRRITATING AND CORROSIVE. IT CAN CAUSE SEVERE BURNS AND PERMANENT DAMAGE TO SKIN TISSUE ⇒

Key Benefits of magnesium hydroxide

Attractive cost savings
Eliminate odour complaints
Safe and non-hazardous
Optimise your budget
Corrosion free
Turnkey solutions

Customer Stories

Improving the Sustainability of Water Treatment \ Municipalities
Magnesium Hydroxide liquid dosing for odour control, Cassowary Coast Regional Council

Replace lime and alum with Calix’s ACTI-Mag magnesium hydroxide liquid at Cassowary Coast Region, QLD, Australia.

Improving the Sustainability of Water Treatment \ Municipalities
Solving extreme H2S odor, El Centro

ACTI-Mag reduces the odor to manageable levels at El Centro, Southern California, United-States.

Improving the Sustainability of Water Treatment \
Chrome Precipitation at a tannery, Casino Hide Tanners

ACTI-Mag is a highly reactive, concentrated and stabilised suspension of Magnesium Hydroxide manufactured by hydrating ultra high surface area Magnesium

High quality products | Proactive customer service

We take pride in providing high-quality products, dedicated delivery specialists, equipment, technical credibility in the applications of water and wastewater treatment, and proactive on-site technical service.

Got a question? Want a quote?

EMAIL US AND WE’LL BE HAPPY TO HELP!

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Latest news

June 27, 2020 \ Improving the Sustainability of Water Treatment
The value of magnesium hydroxide as a substitute for caustic soda and lime

Magnesium hydroxide is the least expensive and most powerful alkaline chemical treatment available on the market for pH control applications.

May 28, 2020 \ Calix Global Challenges
Fighting COVID-19 on the front lines of wastewater management

Wastewater management professionals are playing a silent-yet-crucial role in the fight against COVID-19, also known as the coronavirus. One of

March 15, 2020 \ Improving the Sustainability of Water Treatment
Webinar – Interview with Tasmania’s wastewater odour control expert

In this webinar, Michal Wheatland interviewed the foremost expert on wastewater odour control systems in Tasmania - Nathan Cruickshank - of Netco Pumps.

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