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Wastewater Mercury Control

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NALCO Limited
Winnington Avenue
Winnington Northwich, Cheshire, UK, CW8 4DX

Thank you for your interest in our Nalco Water & Process Services offerings. Tell us how we can help you and one of our water, energy or air experts will get back to you.

Phone: +44 1606 320 281 | Fax: +44 1606 721 839 | Email: custserv.uk@nalco.com

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From chemical treatments to analytical services to mechanical separation options, Nalco provides the solutions customers need to meet their mercury discharge requirements.


Meeting ever-more-stringent regulatory and environmental requirements imposes new capital and operating costs on coal-fired power plants. Questions and concerns about the future are common.

  • Can we optimise our current process?
  • Are there mechanical operational or chemical changes that could further reduce mercury discharges?
  • In terms of dollars per thousand gallons of wastewater, what will those options cost?

Nalco Predict Hg

Nalco Predict Hg delivers the information customers need to make good business decisions. We offer world-class analytical services to characterize a waste treatment stream. Low-level mercury analysis of FGD wastewater is performed by highly-skilled technicians, using state-of-the-art equipment, in accordance with EPA Method 1631.

Jar tests, performed again by skilled technicians optimise chemical product and dosage selection. They also compare various treatments for cost effectiveness.

Finally, the efficacy of various mechanical options – multimedia filtration, membrane filtration, etc.—is evaluated, both in terms of mercury removal and cost.

The last point is key. A Nalco Predict Hg analysis reports not only the technical performance of various options. It also evaluates each option in terms of dollars spent to achieve each result. Nalco customers know how much it will cost – in whatever metric they prefer – to obtain different mercury discharge concentrations.

For more information, email mercurycontrol@nalco.com.