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Alkalinity & pH control

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

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  •  Is low pH adversely affecting your treatment process ?
  • Trouble with your water and its alkalinity ?
  • Excess usage of lime and caustic soda leading to higher operations and maintenance cost ?
  • Do you have safety concerns with operators handling hazardous chemicals ?

The role of alkalinity in wastewater treatment

Alkalinity can be defined as the ability of a water to neutralize acid or to absorb hydrogen ions. In municipal and industrial wastewater, many factors contribute to alkalinity such as the type of dissolved inorganic and organic compounds present in the water, the amount of suspended organic matter in the water, the presence or absence of free hydroxide alkalinity, the amount of bicarbonate in the water, or the bicarbonate to dissolved CO2 ratio etc.

The ability to strongly buffer wastewater within a desired pH range as it undergoes treatment is crucial to maintaining optimal conditions for microbiological activity and reliable wastewater treatment performance.  Alkalinity is what provides strong pH buffering, which is why it is so important for the wastewater treatment industry.

AMALGAM-60 to stabilise pH and boost alkalinity

AMALGAM-60 (60% Mg(OH)2) has a higher neutralizing value per pound than any other alkaline additive.  This translates into a 40% reduction in chemical usage when compared with caustic soda, while being significantly safer for operators to handle and more nutritive for the microorganisms being maintained – making it the most cost-effective option.

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Key Benefits

High neutralization potential without high pH
Reduced sludge volume making for lower cost disposal
Eliminate sodium discharge issues by substituting for caustic
Safer to handle than traditional neutralization chemicals (Lime and Caustic)

COST-EFFECTIVE WASTEWATER TREATMENT SOLUTION

SAFER FOR PEOPLE   •   BETTER FOR EARTH

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.

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 ⇒

Customer Stories

Improving the Sustainability of Water Treatment \ Food & Beverage
An innovative mixed-metal hydroxide for pH control and wastewater microorganism activity

An innovative mixed-metal hydroxide for pH control and wastewater microorganism activity at a meat processing facility in the Midwest of

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.

High quality products | Proactive customer service

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

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Latest news

August 05, 2020 \ Improving the Sustainability of Water Treatment
Magnesium Hydroxide Experiment – the alternative to the sodium hydroxide

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

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

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This is why IER supports WaterAid programs, to facilitate access to safe water, sanitation and hygiene in the world’s poorest and most marginalised communities.

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