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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.
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.
Enquire nowKey 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.
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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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.