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Excessive odor in sewage network, causing odor complaints ?
Heavy build-up of Fogs layers in the network causing severe corrosion ?
Excess usage of chemicals like lime and alum, & iron salts leading to high maintenance costs ?
Frequent need for vacuum truck cleaning leading to an increase in maintenance costs ?
Hydrogen sulfide (H2S) gas is produced in wastewater, causing odor and corrosion issues in sewer systems
Hydrogen sulfide is present due to anaerobic activity, which favors sulfate reducing bacteria (SRB) and results in the generation of a poisonous rotten egg gas called H2S. ALKA-Mag+ effectively locks up H2S to prevent release as a gas that produces odor and facilitates corrosion. ALKA-Mag+ is safe to handle and cost effective with many benefits that reduce treatment costs at the Wastewater Treatment Plant (WWTP).
ALKA-Mag+ for odor and corrosion control
ALKA-Mag+ (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.
* In 2022, AMALGAM-60 was renamed ALKA-Mag+, improved stability, flowability, and reactivity from IER & Calix’s synergy.
Enquire nowKey Benefits
Attractive cost savings
while ALKA-Mag+ 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.
Buffering
the strong buffering characteristics of ALKA-Mag+ are key in its success to lock in the pH to hold H2S in solution in the treated sewer lines, eliminating odor and gas-phase corrosion of H2S; with benefits at the treatment plant.
Earth-friendly
magnesium is a macronutrient, the core element of chlorophyll (makes everything green!) – while sodium is a salinity hazard.
Safer
non-hazardous for employees to handle, corrosion free, spill is not reportable.
H2S is highly toxic…
At just 0.0047 ppm, your customers will start detecting the characteristic ‘rotten egg’ smell of H2S.
Better neutralization, less costs
Made with high surface area MgO (200m2 /gm),ALKA-Mag+ provides excellent neutralisation speed and produces less sludge, making it a much more stable product, which stays as a suspension longer compared to other Magnesium Hydroxide slurries.
- Low viscosity – flows easily in most dosing systems
- Higher neutralization potential – better cost and usage efficiency
- Reduced sludge – easier disposal (less costs)
- Safe to handle / non hazardous (corrosion free)
- Buffers at pH 9 if overdosed – better stability
Customer Stories
August 14, 2020 \ ACTI-Mag \ Improving the Sustainability of Water Treatment \ Municipalities
Odor control using Magnesium hydroxide at South Coast Water District, Orange County 
Magnesium hydroxide reduces the odor to manageable levels at South Coast Water District, Orange County, United-States.
November 10, 2020 \ ACTI-Mag \ Improving the Sustainability of Water Treatment \ Food & Beverage
Caustic soda replacement at a fruit processing plant
A food processing plant in the Pacific Northwest that manufactures fruit products was generating acidic wastewater and looking for a
Watch our webinar: A total odor Control Solution
IER offers a complete solution when it comes to hydrogen sulphide elimination, which is the primary cause of the majority of odour complaints from municipal wastewater systems. This webinar covers the application, benefits and service options available for councils and water authorities that wish to apply Magnesium Hydroxide in their network.
More webinars
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.
Manage your wastewater without compromising your people, operations or the earth.
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latest news
June 09, 2021
AMALGAM Mg(OH)2: alternative to caustic soda for wastewater treatment – with Birch Bay Water & Sewer
A safe and cost-effective alternative to the use of sodium hydroxide [caustic soda, NaOH] for wastewater alkalinity and pH adjustment
June 09, 2021
Magnesium Hydroxide’s Role in Sludge Compaction
Trying to determine how to improve wastewater sludge dewatering and compaction can be a very complicated process. The root cause
December 23, 2022
IER News Issue 9 – December 2022
A Letter from Doug Kelley, President of IER Hi Everyone! It’s Christmastime! I hope you all enjoyed Fall’s change of
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Properties of Magnesium Hydroxide for Wastewater Treatment – Wastewater Plants
Many wastewater operators consider themselves “zoologists”. However, unlike at zoos, where the species being looked after are lions, tigers, and
December 16, 2022
Properties of Magnesium Hydroxide for Wastewater Treatment – Collection System
Once sewage enters the wastewater collection system, its chemical properties can change depending on numerous factors, the most dominant being
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Because we truly care about sanitation
Almost 2 billion people do not have a decent toilet or access to basic and safely managed sanitation. In many cases, faeces and urine end up untreated in the environment, contaminating it and threatening people’s health.
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.