Hydrogen Sulfide Sequestration

Unlike other agents, which can be costly, potentially hazardous, and targeted at a single issue, ALKA-Mag+ offers a safe and cost-effective strategy for managing H2S.

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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 collection systems with a distinctive and unpleasant rotten egg smell causing frequent odor complaints. 

Hydrogen sulfide (H2S) gas typically is formed in wastewater collection systems that are conducive to creating septic conditions. Therefore, they combine with hydrogen to produce hydrogen sulfide gas, creating the "rotten egg" odor associated with septic wastewater.

Diagram of HYDROGEN SULFIDE (H2S) GAS | IER Wastewater Solutions
ALKA-Mag+ for H2S sequestration

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.

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Key Benefits

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

Magnesium hydroxide is a buffered alkali

This means ALKA-Mag+ can hold the pH within a tight range despite acidic pH fluctuations entering the wastewater treatment process from the plant. Even if overdosed, the maximum pH that can be attained with magnesium hydroxide is 9.0. This buffering ability means better stability, no pH excursions that are harmful to bacterial growth resulting in great sulfide odor control.

The strong buffering characteristics of ALKA-Mag+ are key in its success to lock in the pH to hold hydrogen sulfide in solution in the treated sewer lines, eliminating odor and gas-phase corrosion of H2S; the boost in pH and alkalinity in the collection system will also have benefits when the flow arrives at the treatment plant.

COST-EFFECTIVE WASTEWATER TREATMENT SOLUTION

SAFER FOR PEOPLE   •   BETTER FOR EARTH

Hazardous work environments

At just 0.0047 ppm, your customers will start detecting the characteristic ‘rotten egg’ smell of H2S.

Once released from the sewage (i.e. the liquid phase), H2S gas can be toxic to sewer workers, even at low concentrations.

Accelerated corrosion of assets

When dissolved in water, H2S is converted to sulfuric acid, which can corrode the internal walls of sewers, manholes, pump stations and other concrete and steel structures. 

Customer Stories

October 07, 2020 \ ACTI-Mag \ Improving the Sustainability of Water Treatment \ Food & Beverage
Replacing caustic soda with magnesium hydroxide for metal ion precipitation

A microelectronics manufacturer in the Pacific Northwest was using a complex system of chemical additions in order to effectively remove

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

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.

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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