1. Emission standard of air pollutants: mainly including emission control of sulfur dioxide, nitrogen oxides and particulate matter. Ultra-low emission requires the adoption of advanced combustion technology, flue gas desulfurization, denitrification and dust removal measures to control pollutant emissions below the most stringent national or local limits.
2. Discharge standard of water pollutants: The concentration of soluble and suspended solids in wastewater discharged from power plants should be controlled below the most stringent national or local limits. Power plants need to adopt appropriate wastewater treatment facilities, sewage treatment plants, sedimentation tanks, sedimentation tanks and filters to meet the requirements of ultra-low emission.
3. Requirements for solid waste treatment: solid waste generated by power plants, such as ash and gypsum, also needs to be treated up to standard. Ultra-low emission requires power plants to adopt appropriate waste control and treatment methods, dust recovery, classified utilization of solid waste or safe disposal to ensure that solid waste treatment meets environmental protection requirements.