SUEZ Water - Eau et technologies de traitement de l'eau

Élimination des métaux lourds

Remove heavy metals from industrial and municipal wastewater to meet effluent guidelines and maintain environmental compliance

Industries that utilize heavy metals in their processes are more concerned than ever about toxic heavy metals in their wastewater treatment processes and sludge and the impact these heavy metals have on both the environment and their bottom line. SUEZ offers patented, break-through technologies that solve the problem of heavy metals in the areas of wastewater and sludge management while meeting effluent guidelines, maintaining environmental compliance and cost-effectively improving operational efficiency.

Points forts du produit

MetClear metals removal solutions

Industrial, manufacturing and municipal facilities can contain toxic heavy metals in their wastewater, impacting downstream process, reuse of water, the environment, and the local community's well-being. These metals include arsenic, cadmium, cobalt, copper, iron, mercury, nickel, selenium, silver, tin, and zinc.

SUEZ’s MetClear solutions are designed to improve the removal of heavy metals to lower residual levels that traditional hydroxide precipitation may not consistently achieve. These products, coupled with SUEZ’s flocculant and coagulant portfolio, help meet industrial and municipal facilities meet target concentration and increasingly stringent effluent requirements.

The SUEZ treatment approach is to carefully diagnose your situation and design a customized solids separation and metal precipitation solution.

Fonctionnalités et avantages

Heavy metal removal features & benefits

SUEZ’s MetClear metals removal products, coupled with in-depth system auditing, monitoring, and engineered application recommendations, provide the following features and benefits:

  • A cost-effective approach to the removal of traditional heavy metals in wastewater
  • Improved metals removal efficiency
  • Capability to consistently meet or exceed discharge compliance requirements
  • Amélioration de l'image de marque environnementale et des relations publiques avec les communautés environnantes
  • Availability of technical and engineering support to provide operating and monitoring recommendations, complementing chemical solution for a comprehensive and robust solution
  • NPE-free products

Études de cas

épuration des eaux usées

Program for heavy metals precipitation and foam control saves United Airlines $381,000

When California’s limits on heavy metals were lowered to protect San Francisco Bay, this major airline was required to upgrade its pretreatment level to meet the new wastewater standards.

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épuration des eaux usées

Electroplater meets heavy metals discharge limits using MetClear technology

A Midwest electroplater had difficulty meeting the new copper limit recently imposed on them because of the passage of Sludge Rule 503.

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épuration des eaux usées

Nickle removal treatment of wastewater system brings effluent levels into compliance

A petrochemical plant in North America exceeded its permitted daily average mass loading limit for nickel discharge into a local tributary.

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épuration des eaux usées

MetClear MR2405 improves mercury removal in IAF system

A refinery in Thailand wanted to process an opportunity crude containing heavy metals with very high Mercury content.

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épuration des eaux usées

MetClear MR series product keeps battery plan within strict regulatory limits and increases water reuse

A lead battery plant was unable to consistently achieve the required discharge limits for lead. SUEZ implemented a MetClear MR total metals removal program to help meet the regulatory limit.

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épuration des eaux usées

SUEZ water nickel help Texas chemical plant meet effluent discharge limits for copper

A chemical plant in Texas was dealing with a change in their permit that set a lower copper discharge limit.

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FAQ

What are heavy metals?

Heavy metals are particulate and soluble contaminant. The most common heavy metal contaminants that enter industrial and municipal wastewater from manufacturing processes and/or process additives include copper (Cu), silver (Ag), aluminium (Al), arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), zinc (Zn), mercury (Hg), molybdenum (Mo), manganese (Mn), nickel (Ni), selenium (Se), tin (Sn), gold (Au), iron (Fe), and vanadium (V). The metals of concern will vary from plant to plant.

What are the effects of heavy metals on the environment?

Les métaux présents dans les eaux usées ne se dégradent pas naturellement. Même à faible teneur, ils sont toxiques pour la faune aquatique. The effects of heavy metals on the environment include potential contamination from particulate metals as suspended solids entering receiving streams, as well as being toxic to aquatic organisms in the soluble form.

How are heavy metals removed from water and wastewater?

Heavy metals are removed from water and wastewater by chemical precipitation followed by a solids separation step, which can include clarification, flotation and/or filtration.