The wastewater formed during desulfurization process has characteristics of unstable quantity

complicate water quality and high salt content.The main objective of wastewater treatment at present is standardized sluicing or solidification stabilization which comes but with high investment and energy consumption.Thus

the quality feature of the wastewater from FGD system was described in detail and a new treatment progress without chemical dosing pretreatment was developed in this paper

which can separate and gather the salt component of the FGD wastewater with the aid of membrane concentration and is adopted in the pilot scale test in Yuhuan Huanneng Power Plant.The results show that

the monovalent and divalent ions can be significantly separated by nanofiltration to concentrate the FGD wastewater.In addition

the new formed NaCl solution can be used to produce chemicals such as sodium hypochlorite.This process achieves water balance on the premise of salt balance of the FGD wastewater system

eliminates the errors of the conventional treatment process and realizes true resource recovery of the FGD wastewater.