Archroma advances wastewater recycling
Chemicals and dyes group Archroma has teamed up with US wastewater solutions provider Gradiant to install a Zero Liquid Discharge (ZLD) technology at its Mahachai plant in Thailand, enabling the recovery of 90-95% of wastewater.
Since 2019, Archroma has evaluated various ZLD solutions to address growing water challenges in Thailand. Gradiant’s Counterflow Reverse Osmosis (CFRO) was selected for its ability to treat diverse wastewater compositions with efficiency and minimal energy consumption. The modular system integrates with the plant’s existing infrastructure.
Its Free Radical Oxidation (FRO) technology removes colour and organics from the concentrate and enables the recovery of concentrated brine, which Archroma repurposes within the dyeing process or supplies to industry partners for applications such as resin regeneration and chlorine production.
Dhirendra Gautam, vice-president of marketing and strategy at Archroma, said: “Our goal is to require our plants to have effective water conservation facilities with special focus on water stressed areas, contributing to water conservation and helping to combat acute water scarcity worldwide.”
Archroma also operates a Sustainable Effluent Treatment plant in Jamshoro, Pakistan, which provides irrigation water to surrounding communities.
