China releases 2021 list of advanced technologies for control of air pollution, noise, vibration 
On Dec. 22, China’s Ministry of Ecology and Environment released the 2021 list of advanced technologies for air pollution, noise and vibration control.
It is part of a larger national list of advanced technologies first released by the ministry in 2006 in a bid to promote technologies used to address environmental issues. The national list contains advanced, practicable and financially feasible pollution control technologies, focusing on key areas for environmental pollution control. It is mainly targeted at companies and organizations in relevant fields and updated every year.
The above-mentioned 2021 list contains 19 technologies for air pollution control and six for noise/vibration control. The air pollution control technologies include desulfurization, denitrification, dust removal, volatile organic compound treatment and deodorization technologies. The noise/vibration control technologies are mostly technologies for roads, railroads or buildings. The table below shows a few of these as examples.
| Technology | Use | Class |
| Fully automatic air supply reduction and exhaust concentration system and regenerative thermal oxidizer (RTO) | Treatment of organic compounds in the exhaust of ovens used in the printing, coating and other industries. Each piece of equipment processes 1 – 10 g/m3 of organic matter and 3,000 – 150,000 m3/h of air flow. | Promoted technology |
| VOC recovery membrane technology | Treatment of volatile organic compounds in high concentrations in the petrochemical, chemical, pharmaceutical and other industries. | Promoted technology |
| Electronic waste material and multi-metal solid waste smelting flue gas treatment technology | Treatment of flue gas from electronic waste materials and multi-metal solid waste smelting. | Model technology |
As shown in the table, the technologies are categorized into two classes. “Model technologies” are innovative, effective and basically practicable technologies. “Promoted technologies” are technologies that are considered mature, stably effective and financially feasible based on past performance.
The full text of the latest list of advanced technologies for air pollution, noise and vibration control (in simplified Chinese) is available at
https://www.mee.gov.cn/xxgk2018/xxgk/xxgk06/202112/t20211224_965183.html.
