iSORB IronMaxx is the house-brand iron desulfurization powder Interra Global supplies for dosing into anaerobic digesters, where its iron controls hydrogen sulfide at the source, before the biogas leaves the digester. It ships in 2,200 lb super sacks, and where dust-free handling is wanted it is dosed through Interra Global's ADS™ Powder Dosing System. Interra Global reviews operating conditions and recommends a dosing approach when called on.
iSORB IronMaxx HR10 is a powdered, crystalline iron(III) oxide hydrate, FeO(OH)/Fe₂O₃, developed for the North American market to control hydrogen sulfide (H₂S) in anaerobic digesters. Dosed into the digester feedstock, its iron binds the sulfide in the digester liquid, and the sulfur, bound to iron, leaves the digester with the digestate instead of entering the gas, so less H₂S reaches the biogas and the equipment downstream. IronMaxx is the house-brand powder in Interra Global's H₂S removal media line, alongside FerroSorp® DGR, and is the standard choice for most digesters. Features and Benefits
Typical Applications The IronMaxx product data sheet describes it as best suited to highly mixed, efficient reactors. It goes into the liquid phase only, the digester or its digestate, and is typically dosed at:
It can also be used for odor control in liquids. It is not used in the gas phase; gas-phase removal is the work of the FerroSorp SK and SLH pellets. Sizes and Packaging
IronMaxx ships in 2,200 lb super sacks with a bottom drain valve. Other packaging is quoted on request. Frequently Asked Questions What is iSORB IronMaxx? Interra Global's house-brand iron desulfurization powder for controlling hydrogen sulfide in anaerobic digesters, supplied as grade HR10. It is dosed into the digester feedstock, typically at biogas plants and wastewater treatment plants. How does IronMaxx control hydrogen sulfide? The iron in the powder binds the sulfide in the digester liquid, and the sulfur, bound to iron, leaves with the digestate. Less of the sulfur is left to enter the biogas as hydrogen sulfide. How is the dosing rate set? Feedstock composition, digester type, and current sulfide levels typically set the dosing rate. Interra Global reviews a digester's operating conditions and recommends a dosing approach when called on. Does IronMaxx replace a gas-phase media bed? IronMaxx is dosed into the digester liquid and is not used in the gas phase. Dosing lowers the sulfide that reaches the gas; whether a bed of FerroSorp SK or SLH pellets is also needed downstream depends on the feedstock and the outlet specification the gas must meet, and Interra Global assesses that per site on request. What is the difference between iSORB IronMaxx and FerroSorp DGR? Both are iron hydroxide powders dosed into the digester as a slurry. iSORB IronMaxx is the standard choice for most digesters. FerroSorp DGR reacts more quickly and is typically specified where the digester's retention time is short. Is dust-free dosing available? Yes. Where dust-free handling is wanted, IronMaxx is dosed through the ADS Powder Dosing System, which doses the powder from super sacks as a slurry under integrated controls. Whether the system suits a given digester is reviewed on request. Does the data sheet list heavy metal content? Yes. The iSORB IronMaxx product data sheet gives a limit and a typical range for each heavy metal it lists, measured on the total solids. How should IronMaxx be stored? It is typically kept in a dry, well-ventilated place away from food and animal feed, with opened packages resealed to prevent contamination and the oldest material used first. |
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