Zero-liquid discharge (ZLD) is a water treatment process, in which wastewater is purified and recycled, leaving zero discharge of water at the end of the treatment cycle. Thus, no liquid waste leaves the facility. Zero-liquid discharge is a leading wastewater treatment method. It includes reverse osmosis, ultrafiltration, crystallization/evaporation, and fractional electrode ionization.
The environmental regulatory boards have set certain norms and regulations for wastewater treatment and effluent discharge standards, owing to an increase in industrial pollution. Thus, it is mandatory for companies to install treatment plants in order to meet stringent environmental standards. Thus, expansion in the wastewater treatment industry is expected to drive the global zero liquid discharge market during the forecast period.
The report analyst commented "The global interest in zero liquid discharge is likely to increase over the coming decades and regulations will force companies to continue adopting this technology. Industrial processes are necessary to continue the life we have become accustomed to, but we must continue to do more to minimalize waste and streamline these processes and do our best to limit pollution and emissions for years to come."
Leading companies featured in the report who are involved in zero liquid discharge include Suez Environmental, General Electric, Mitsubishi Heavy Industries, Veolia Environmental Services, Aquatech International, 3V Green Eagle, Oasys Water, Alfa Laval, Thermax Global, GEA Group, Aktiengesellschaft and Praj Industries.