SULFATEQ™ is a sulfate removal system that results in minimal waste and maximum recovery of valuable resources. For more than 25 years, SULFATEQ™ has been applied in full-scale installations.
Advantages of SULFATEQ®
SULFATEQ™ removes sulfate to less than 300 mg/l and converts it into hydrophilic (non-clogging) elemental sulfur. In addition, it recovers valuable metals such as copper, nickel and zinc as marketable metal sulfides.
Bioprocesses for sulfate removal from water can be preferred over chemical processes for sulfate removal. Bioprocesses are more sustainable, require less chemicals, and generate less waste. SULFATEQ™ is a safe, effective and odor-free process. It treats acidic, alkaline and pH-neutral wastewater streams. This biological process operates at ambient conditions. SULFATEQ™ simultaneously recovers valuable metals, such as copper, nickel and zinc, and removes sulfate (<300 mg/l), calcium (<100 mg/l>, magnesium (<4g/l), aluminium and iron as well as poisonous metals like lead, mercury or cadmium. As a result, the effluent quality is improved and can be discharged to surface waters. Also, as the treated wastewater is free of sulphate and metals, it can be reused in the facility. Thus, it is a much better alternative than lime treatment, reverse osmosis or ion exchange.
Where this sulfate removal system is applied
Feasibility of SULFATEQ™
The typical range for the application of SULFATEQ™ is an influent sulfate concentration of 1,000-25,000 mg/l and a pH level of 2-8. SULFATEQ™ is used as a standalone installation or as the final treatment at a lime-gypsum plant.
The power of this sulfate removal system lies in its ability to solve multiple problems with one installation: sulfate removal and simultaneous metal recovery.
How SULFATEQ™ removes sulfate from wastewater
After the anaerobic conversion of sulphate into sulphide using hydrogen or an organic carbon source, the sulphide produced is converted into elemental biosulphide by an aerobic biological sulphide oxidation process. The result is a sulphide- and metal-free effluent with low sulphate content.
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At Paques, we believe in a cleaner, more sustainable world where innovation in biotechnology plays a crucial role in managing our planet's resources wisely.
If you have any questions or wish to explore what Paques technologies can do for your operations, we encourage you to connect with our team of experts. Our knowledgeable professionals are ready to assist you, offering insights and guidance tailored to your specific needs.
Leading the biotech revolution in wastewater and biogas
Your inquiry is important to us, and we are eager to assist you in exploring our innovative solutions for biological wastewater and gas treatment.
A member of our expert team will be in touch shortly to discuss your specific needs and how Paques can help you achieve your environmental and operational goals.
We look forward to collaborating with you and hope to build a cleaner, more sustainable world together.
Warm regards,
The Paques Team
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