Chrome &
Metal Plating
Wastewater from chrome plating carries excessively high quantities of soluble hexavalent chrome (CR⁶⁺) — toxic and untreatable in that state. The only path is chemical reduction to trivalent chrome, followed by precipitation and clarification.
With 25+ years in the heavy-metal finishing industry, Ahura Aqua delivers comprehensive water & wastewater treatment across all four critical applications — Process Water, ETP, Recovery and Zero Liquid Discharge.
High-quality, consistent De-Ionized water for a speck-less plating process — near-zero conductivity with microbial content and the finest suspended loads removed. Online heavy-metal recovery via specialised resins.
Hexavalent chrome is reduced to trivalent chrome, then precipitated, flash-mixed, flocculated and removed from the waste stream by inclined-plate clarification, with sludge handling and dewatering.
Recover up to 93% of the wastewater generated by the ETP and reuse it as plating process water — a major saving in operational and capital cost versus evaporating it all.
The last 7% of extremely concentrated, untreatable wastewater is evaporated via MEE or MVR — the best route for toxic wet waste that physio-chemical treatment cannot handle. Complete ZLD with trusted partners.
Recovering ETP-treated water delivers major savings in both operational and capital cost. The last 7% of extremely concentrated, untreatable wastewater is evaporated via Multi-Effect Evaporation (MEE) or Mechanical Vapour Recompression (MVR) — achieving complete ZLD with our two-decade technology partners.