Focusing on the application and significance of the noise control industry under the background of "dual carbon"

1. Application direction of noise control industry in the “Dual Carbon” action

1. Combining industrial noise control with energy-saving transformation

• Noise reduction retrofits for high-energy-consuming equipment: Installing mufflers and soundproof enclosures on blowers, air compressors, and other equipment in high-carbon-emission industries like steel and chemicals reduces noise while also minimizing energy loss caused by vibration. For example, after soundproofing a boiler fan at a power plant, noise levels decreased by 12 decibels and equipment energy efficiency increased by 8%.
• Synergy between waste heat recovery and noise reduction: Ventilation and cooling systems are often required for industrial noise control. By integrating waste heat recovery devices (such as heat exchangers), waste heat can be converted into heating or power generation energy, thereby achieving simultaneous noise reduction and carbon emission reduction.

2. Integration of traffic noise control and low-carbon infrastructure

• Upgrading existing road sound insulation facilities: Installing photovoltaic sound barriers on existing urban viaducts and expressways not only blocks traffic noise (reducing noise by 10-15 decibels), but also uses solar power to supply public facilities such as street lights, reducing carbon emissions from the power grid.
• Decarbonizing railway noise control: Installing ecological sound insulation walls (e.g., earth slopes planted with sound-absorbing vegetation) along high-speed rail lines to replace traditional concrete barriers, reducing construction carbon emissions while enhancing carbon sequestration capacity.

3. Building noise control promotes energy conservation in existing buildings

• Energy savings from soundproofing retrofits in older buildings: Retrofitting existing residential buildings with soundproof windows or exterior wall sound-absorbing layers simultaneously improves the building's thermal insulation performance. For example, in a Shanghai community renovation, replacing soundproof glass reduced indoor air conditioning energy consumption by 20%.
• Community noise reduction projects and green space expansion: By constructing soundproofing belts and ecological buffer zones, noise pollution is controlled while increasing urban green space and promoting carbon sequestration. A Beijing ring road renovation project, through the planting of tree-lined soundproofing belts, has generated 500 tons of carbon sequestration annually.

4. Urban noise monitoring and smart carbon reduction

• Integrating noise maps with carbon emissions data: IoT sensors are used to establish a real-time urban noise monitoring network. Combined with traffic flow and industrial energy consumption data, this helps identify overlapping areas of high noise and high carbon emissions, allowing for the development of targeted mitigation strategies. For example, Shenzhen City, using noise-carbon heat maps, has optimized heavy truck restriction zones, simultaneously reducing both noise and carbon emissions.
• Low-carbon operation and maintenance of public facilities to reduce noise: When soundproofing municipal noise sources such as cooling towers and substations, adopt low-energy ventilation designs (such as natural convection cooling) to reduce the carbon emissions of the treatment facilities themselves.

2. The core significance of the noise control industry to the "dual carbon" action

1. Direct carbon reduction: Optimizing energy consumption during the governance process

• Noise reduction projects reduce secondary energy consumption: Traditional noise control measures (such as soundproof walls) may rely on high-carbon materials (cement) or energy-consuming equipment (forced ventilation systems), while modern low-carbon treatment technologies (such as ecological barriers and natural ventilation silencers) can reduce carbon emissions throughout the life cycle.
• Extend equipment life and reduce replacement emissions: Noise reduction modifications to industrial equipment can reduce vibration wear, extend service life, and avoid carbon emissions at the manufacturing end caused by frequent equipment replacement.

2. Indirect synergy: compound benefits of environmental governance

• Reducing the vicious cycle of noise and energy consumption: Urban noise pollution can reduce residents' willingness to open windows in the summer, leading to a reliance on air conditioning for cooling, which indirectly increases building energy consumption. Community noise reduction projects can reduce air conditioning usage by 15%-30%.
• Improving social acceptance of green industries: Low-carbon facilities such as wind turbines and energy storage power stations often face the "NIMBY effect" due to noise issues. Professional noise control can accelerate project implementation. For example, a wind farm in Jiangsu Province implemented a customized noise reduction solution, resulting in a 90% reduction in resident complaints and smooth progress in project expansion.

3. Policy tools: Improving the “dual carbon” governance system

• Noise indicators are incorporated into the carbon accounting system: the effectiveness of noise control (such as decibel reduction) is converted into carbon emission reduction equivalents, included in corporate ESG reports or local carbon neutrality assessments, and policy linkage is enhanced.
• Targeted support from green finance: issuing "special bonds for noise reduction and carbon reduction", with a focus on supporting projects with carbon synergy benefits such as traffic sound insulation projects and industrial noise control.

4. Social Value: Promoting the Transition to Low-Carbon Living

• Noise control improves the utilization rate of public spaces: by reducing background noise in parks, squares and other areas, citizens are encouraged to use outdoor public facilities more and reduce energy consumption at home.
• Co-building community noise reduction and low-carbon awareness: Popularize the concept of "quiet environment = low-carbon life" during the governance process. For example, a community in Chengdu publicizes noise monitoring data to guide residents to reduce noise at night and simultaneously reduce lighting and electrical standby energy consumption.

Conclusion

The core value of the noise control industry in the "dual carbon" initiative lies in leveraging engineering-based noise pollution control to unlock synergistic potential with energy conservation, consumption reduction, and resource recycling. This "control equals carbon reduction" logic aligns with the systemic nature of environmental issues and provides a path for green transformation for the traditional pollution control industry. Future policy innovation and technological advancement are needed to transform noise control from a "cost burden" into a "carbon asset," achieving both ecological and economic benefits.