In the heart of China’s tech hub, Shenzhen, researchers are making waves in the semiconductor industry by tackling a problem that’s as invisible as it is impactful: carbon emissions from chip wastewater treatment. Led by Xingmei Liang from the Key Laboratory of Microorganism Application and Risk Control of Shenzhen, a team of scientists has delved into the carbon footprint of semiconductor chip wastewater treatment processes, revealing insights that could reshape the industry’s approach to sustainability.
The semiconductor industry is a powerhouse of innovation, but it’s also a significant contributor to carbon emissions, particularly through its wastewater treatment processes. Liang’s study, recently published in ‘能源环境保护’ (Energy, Environmental Protection), sheds light on the carbon emission intensities of seven typical chip wastewater treatment processes, ranging from 2.20 to 3.69 kg CO2e/m3. The findings are stark: these processes emit more carbon than municipal wastewater treatment processes, with electricity consumption being the primary culprit.
“Electricity consumption constitutes the primary source of these emissions,” Liang explains. “Various electrical devices and equipment are used during the wastewater treatment procedures, including pumps for water circulation, aeration devices for oxygen supply, and monitoring instruments. All of these consume a significant amount of electricity, leading to substantial carbon emissions.”
The study highlights Process G as a standout performer, achieving an average reduction of 10% in carbon emissions, with a maximum reduction reaching 35%. This process not only reduces carbon emissions but also ensures that the effluent water quality meets the Class Ⅲ standard of the Surface Water Environmental Quality Standard (GB 3838—2002). Moreover, Process G demonstrates a high land utilization rate and efficient wastewater treatment, with a carbon emission intensity per unit of land of 1.93 kg CO2e/m2, compared to 0.71 kg CO2e/m2 for Process A.
The implications of this research are profound for the energy sector. As the demand for semiconductors continues to surge, driven by advancements in technology and the Internet of Things (IoT), the industry’s carbon footprint is set to grow. However, Liang’s findings offer a roadmap for mitigating this impact. By adopting new energy utilization models and process optimization methods, semiconductor manufacturers can significantly reduce their energy consumption and carbon emissions.
The study’s findings suggest that through in-depth investigation and analysis, the application of new energy utilization models and process optimization methods in the treatment of chip wastewater can significantly reduce energy consumption and carbon emissions. This could pave the way for a greener, more sustainable future for the semiconductor industry, aligning with global efforts to combat climate change.
As the semiconductor industry continues to evolve, the need for sustainable practices becomes increasingly urgent. Liang’s research provides a compelling case for embracing greener technologies and processes, not just for environmental reasons, but also for commercial gain. By reducing their carbon footprint, semiconductor manufacturers can lower their energy costs, enhance their brand reputation, and meet the growing demand for sustainable products.
The study’s findings are a wake-up call for the semiconductor industry, highlighting the urgent need for sustainable practices. As the industry continues to grow, so too will its carbon footprint. However, with the right strategies and technologies in place, the semiconductor industry can lead the way in the fight against climate change, paving the way for a greener, more sustainable future.