The first is the environmental protection system reform marked by the newly established Ministry of ecological environment, which provides organizational guarantee for the realization of new goals, new ideas and new strategies in the new era. Under the new system, we should speed up and increase the reform of the outdated environmental management system.

 

 

 

The second is to establish a new era management mode of pollutant emission based on the comprehensive pollutant emission standards of thermal power plants, so as to reflect the requirements of rule of law and high-level treatment and comprehensive control of power pollutants in the new era; Taking the discharge standard of comprehensive pollutants of thermal power plant as the core, the relationship between various environmental management systems should be well coordinated, so as to better reflect the original intention of the reform of "one license" emission permit management system.

 

 

 

Third, the total emission of smoke, sulfur dioxide and nitrogen oxides from thermal power plants has decreased by more than 85% compared with the peak value, and the pollutant emission per kilowatt hour of power generation has decreased significantly, which is no longer the main factor of haze. Under the most stringent emission standards and ultra-low emission requirements, the supervision method of pollution emission from thermal power plants should be improved with the times.

 

 

 

Fourth, the impact of the emission characteristics of air pollutants from existing thermal power plants on the ambient air quality has been mainly reflected in the characteristics of long-term scale and secondary pollution. Taking the hourly average concentration as the basis for reaching the standard has seriously affected the enterprise's scientific control of pollution according to law and the government's scientific supervision. It is suggested that the assessment of hourly mean concentration should be changed to daily mean value (or 24-hour rolling mean value) and monthly mean value, and the normal and abnormal conditions should be distinguished in the assessment.

 

 

 

Fifthly, all thermal power enterprises are equipped with on-line monitoring facilities (CEMS), which has become the basic tool of assessment. It is suggested to strengthen the reliability evaluation and supervision of CEMS, and dilute or reduce the manual monitoring mode, so as to reduce the burden of regulators and enterprises.

 

 

 

Sixth, we should attach great importance to the comprehensive impact of ammonia and sulfur trioxide on the flue gas treatment system and the emission of secondary pollutants when the emission limit of low concentration nitrogen oxides is adopted, attach great importance to the coordination of pollutant emission reduction, unit efficiency and carbon emission reduction, and attach great importance to the marginal cost of pollutant emission reduction.