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IER is a supplier of environmentally friendly water and wastewater treatment chemicals and equipment.
Owned by Calix, an Australian company with global operations, IER offers Magnesium Hydroxide-based products as safe, earth-friendly alternatives to the use of caustic soda for pH neutralization, along with proprietary polymer solids removal technologies.
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.
100 years of combined expertise in wastewater treatment.
Read our Company ProfileHigh quality products | Proactive customer service
Based in Spokane, Washington, IER primarily services the Pacific Northwest and Upper Midwest with plant locations in Sioux City, Iowa; Muscatine, Iowa;
Centralia, Washington and Pasco, Washington.
THE SOLUTIONS WE OFFER
Manage your wastewater without compromising your people,
your operations, or the Earth.
IER serves a wide range of industries
Food & beverage, meat & dairy, microelectronics, municipal wastewater, winery & brewery
Customer Stories
May 18, 2020 \ ACTI-Mag \ 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 United-States.
December 14, 2018 \ ACTI-Mag \ Improving the Sustainability of Water Treatment \ Municipalities
Hydrogen Sulfide (H2S) in wastewater odor control case study, El Centro 
Magnesium hydroxide ( Mg(OH)2 ) reduces the odor to manageable levels at El Centro, Southern California, United-States.
Special thanks to our support associations
A safe, green & cost-effective alternative to caustic soda
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.
Find out moreWebinar Series – Better pH & Alkalinity Control
A very informative, yet brief session from Dr Doug Kelley, one of the field leaders in pH and alkalinity control – to understand the basic chemistry that lies under the pH measurement and how alkalinity and other chemicals can affect wastewater treatment. Also learn about the differences between using caustic, lime and soda ash for pH control or the cost benefits of using Magnesium Hydroxide products.
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
December 16, 2022
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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Along with our parent company, Calix (calix.global), we work cooperatively with each other, our team, our customers, and partners worldwide, to make a positive difference for the long-term. Because there is only one Earth.
Mars is for quitters!
SUPPORTING WATERAID
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.