1 Introduction
GB 9078-1996, also known as the Chinese National Standard for the Emission of Pollutants from Blast Furnace, is an legal document established by the National Environmental Protection Agency in 1996. The document is related to the prevention and control of air pollution from blast furnaces.
2 Standard Specification
In accordance with GB 9078-1996, blast furnaces must abide by the pollutant emission standards set by the document. Specifically, it states that total suspended particulate emissions should not exceed 20mg per cubic meter, sulfur dioxide emissions should not exceed 150mg per cubic meter and nitrogen oxide emissions should not exceed 150mg per cubic meter. Additionally, it states that the dust discharge concentration between dust collectors of the dust cleaning part of the blast furnace should not exceed 100mg per cubic meter.
To ensure that the emission standards outlined in the document are met accurately, comprehensive monitoring systems should be put in place. These should include measuring and monitoring systems for air pollutants created from the blast furnace, including the concentration of the three pollutants previously mentioned. Further, it is essential for all monitoring results to be easily accessible for the public so that clear information on the environment status and quality of the area is available.
3 Implementation of GB 9078-1996
To ensure the implementation of the standard, all blast furnaces should be equipped with air pollutant treatment devices as well as dust removal devices to reduce the total dust emissions created by the process. Additionally, it is important to carry out regular tests and inspections of emission levels to meet the limit set out by the document.
Furthermore, all blast furnaces should implement the weekly emission monitoring system specified in the document. This should include a sufficient number of sampling points and sampling times that are recorded and analysed to measure the actual pollutant emissions from the process.
For those who fail to meet the emission standards set out in GB 9078-1996, further action will be taken by the National Environmental Protection Agency. The penalties for non-compliance outlined in the document range from a warning and commercial penalty to technical transformation or suspension of production.
4 Conclusion
In conclusion, GB 9078-1996 is an essential legal document for controlling and preventing air pollution from blast furnaces in China. It outlines the emission standard for pollutants that should not be exceeded, along with the monitoring systems that must be put in place to ensure compliance. Furthermore, the document outlines the consequences and penalties for those who fail to meet the standards set out in the document. All blast furnaces must, therefore, ensure that they abide by the requirements set out in GB 9078-1996 in order to protect the environment and reduce air pollution.
