Analysis of sewage sludge pyrolysis carbonization technology and carbon emission calculation

ZHANG Pengfei; WU Wei; YING Jiguang; ZHANG Jia

doi:10.13205/j.hjgc.202511026

Volume 43 Issue 11

Nov. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(11): 231-237

ZHANG Pengfei, WU Wei, YING Jiguang, ZHANG Jia. Analysis of sewage sludge pyrolysis carbonization technology and carbon emission calculation[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 231-237. doi: 10.13205/j.hjgc.202511026

Citation:

ZHANG Pengfei, WU Wei, YING Jiguang, ZHANG Jia. Analysis of sewage sludge pyrolysis carbonization technology and carbon emission calculation[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 231-237. doi: 10.13205/j.hjgc.202511026

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Analysis of sewage sludge pyrolysis carbonization technology and carbon emission calculation

doi: 10.13205/j.hjgc.202511026

1. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China;
2. Drainage Management Office of Shanghai Fengxian District, Shanghai 201400, China

Received Date: 2024-10-16
Accepted Date: 2024-12-15
Rev Recd Date: 2024-11-29

Available Online: 2026-01-09

Abstract

Abstract

With the rapid economic development and increasing urbanization level of China， the scale of wastewater treatment has reached the top in the world. Sludge， as a by-product of wastewater treatment， has always been a research hotspot in the field of wastewater treatment regarding its safe disposal and resource utilization. Pyrolysis and carbonization technology for sludge， a novel technique that emerged in Japan and Europe in the 1990s， was gradually introduced and applied in China after 2008. Amidst the growing focus on carbon emissions， the resource utilization advantages of sludge pyrolysis and carbonization technology have gathered increasing attention. This paper provides a comparative analysis of global typical sludge pyrolysis and carbonization projects. In Japan， the emphasis of sludge pyrolysis and carbonization is not on the pyrolysis gas， but on the utilization of the resulting sludge char. The primary goal is to promote the application of sludge char in various fields， including fuel， soil improvement， and construction materials. In Europe， the driving force behind sludge pyrolysis and carbonization technology is searching for cleaner alternatives to incineration and the effective recovery of phosphorus from sludge. In China， there is still significant improvement room in the development of key technologies and integrated equipment for sludge pyrolysis and carbonization. Issues such as uneven heat transfer and low efficiency during the process operation need further exploration and optimization. By systematically introducing the engineering design concepts of a specific sludge pyrolysis and carbonization project and conducting a comprehensive carbon emission analysis， this study aims to advance the optimization of key technologies and the promotion of sludge pyrolysis and carbonization projects in China. It also seeks to enhance the operational level of engineering projects and improve the resource utilization efficiency of sludge char products. Overall， this research highlights the potential of sludge pyrolysis and carbonization technology as a sustainable solution for sludge management， aligning with the global trend towards carbon neutrality and resource conservation.
- sludge pyrolysis carbonization,
- technological development,
- engineering design,
- sludge treatment,
- carbon emission

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References(14)

References

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