As the terminal of the water system of the power plant, desulfurization wastewater has a complex composition, high salinity and strong scale-causing ability, making it difficult to achieve “zero discharge” and reuse. The treatment of desulfurization wastewater is difficult and expensive, making it the key factor for “zero discharge" of wastewater. Shanghai Electric carries out technological breakthrough on zero discharge treatment process of desulphurization wastewater, optimizes and integrates the existing technologies. The system has a wide application range, high reliability and stable product water quality.

The zero-discharge project for desulphurization wastewater of a power plant in Guangdong Province is a typical case of desulphurization wastewater treatment in the power industry. Shanghai Electric provides the treatment system for two units, which is currently the largest national zero-discharge project of desulfurization wastewater.