Lebanon, Penn. — Marsulex Environmental Technologies Corp. (MET) and Sanders Lead Co. Inc. have finalized a contract for the supply of MET’s proprietary ammonium sulfate flue gas desulfurization (AS-FGD) system at their Troy, Ala., lead smelter and battery reclamation facility. MET’s scope includes engineering and equipment supply of the AS-FGD system, designed to remove SO2 from the gas stream as well as process an existing waste acid stream, producing a saleable agricultural crop nutrient product. Construction is targeted to commence in 2017, with commercial operation by the end of 2018. MET operated a successful pilot program at the Sanders facility. The AS-FGD technology utilizes ammonia in the capture and ultimate conversion of SO2 into AS, enabling regulatory compliance. MET says the process has many advantages over conventional limestone FGD applications, including reduction and elimination of solid and liquid waste disposal requirements and the associated costs, prevention of internal scale build-up in equipment and vessels, a high-value by-product (AS) revenue stream, and no CO2 greenhouse gas production. MET’s AS-FGD has been in continuous commercial operation since the 1990’s, beginning with the first installation at Dakota Gasification Company’s Beulah, N.D., complex. MET says the technology is now in use throughout North America, Europe, and Asia.
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