SeaChange Technolgies in USA has put a new spin on the clean-up of textile effluent from dyeing and finishing with a new way to treat wastewater, it removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation.

The North Carolina start-up has recently completed a 3- month pilot-scale trial with Indian textile giant Arvind using its patented cyclonic separation technique to clean wastewater streams and highly concentrated sludge to reduce both chemical discharge and overall greenhouse gas emissions in the dyeing process.