Heavy Metal Wastewater Featured Patented Technology

Treatment of typical complexed heavy metal wastewater in the industry:

  1. Chemical copper wastewater: Integration precipitation method, in most cases sodium sulfide, can achieve the demand.
  2. Complexed trivalent chromium wastewater: Ferrous iron or lime can realize co-precipitation with trivalent chromium.
  3. Chemical nickel wastewater
    4. Zero discharge of heavy metals, first oxidation process to reduce the organic content of wastewater, and then membrane concentration, effluent reuse, concentrate evaporation + drying to form sludge commissioned.
  4. Zinc-nickel alloy wastewater
    5. Higher concentration of zinc-nickel alloy wastewater, using membrane concentration + drying process, membrane effluent reuse, and membrane concentrate drying to form powder outsourcing.
  5. Mixed complex wastewater
    6. Electroplating Park, all kinds of heavy metals have been mostly removed but can not meet the discharge standards after biochemical treatment of the remaining organic complexing agent decomposition, and then nickel has been removed.
  6. Circuit board factory containing copper wastewater
    7. ① Contains both ionic and significant amounts of complexed copper.
    ② First alkaline precipitation of ionic copper, the remaining complex state of copper and then add sodium sulfide treatment to meet the standard, the relative dosage of chemicals is small, and the effect is stable.

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xinerhr@xiner-membrane.com

(86)15851593282

Siben Road, Wujiang District, Suzhou, Jiangsu, China

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