为了研究湿法脱硫和湿式电除尘运行性能及废水排放特性，以神华国华寿光1 000 MW超低排放燃煤机组为对象，分别对脱硫塔性能、湿除脱除液滴特性以及脱硫和湿除废水水质进行分析。结果表明，100%和45%负荷下，脱硫塔脱硫效率均超99%，SO₂排放浓度远低于超低排放限值；湿式电除尘可实现液滴的深度脱除，液滴排放浓度低至6.5 mg/m³；脱硫和湿除废水排放pH、硫酸盐、硫化物、悬浮物、重金属含量基本满足电力行业标准要求，但需优化废水处理系统中颗粒沉淀和絮凝工艺。

In order to study the operating performance and wastewater emission characteristics of both wet desulfurization unit and wet electrostatic precipitator, Shenhua Guohua Shouguang's 1 GW ultra-low emission coal-fired power plant is selected to analyze the performance of desulfurization column, the droplet-removing characteristics of wet electrostatic precipitator, the quality of wastewater from wet desulfurization unit and wet electrostatic precipitator.Study results show that the desulfurization efficiencies of desulfurization column exceed 99.0% at both 100% load and 45% load, with a SO₂ emission concentration far below the ultra-low emission limit.Deep removal of droplets can be achieved through wet electrostatic precipitator, and the droplet content at the outlet of wet electrostatic precipitator is as low as 6.5 mg·m^-3.The pH value and the contents of sulfates, sulfides, suspended solids, heavy metals in discharged wastewater are all lower than the standard levels for the power industry.But it is necessary to optimize the particle precipitation and flocculation process in the wastewater treatment system.