COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE

LI Sheng-hong; ZHU Fen-fen

doi:10.13205/j.hjgc.202109022

Volume 39 Issue 9

Jan. 2022

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LI Sheng-hong, ZHU Fen-fen. COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 154-159,192. doi: 10.13205/j.hjgc.202109022

Citation:

LI Sheng-hong, ZHU Fen-fen. COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 154-159,192. doi: 10.13205/j.hjgc.202109022

LI Sheng-hong, ZHU Fen-fen. COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 154-159,192. doi: 10.13205/j.hjgc.202109022

Citation:

LI Sheng-hong, ZHU Fen-fen. COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 154-159,192. doi: 10.13205/j.hjgc.202109022

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COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE

doi: 10.13205/j.hjgc.202109022

LI Sheng-hong,
ZHU Fen-fen^,

School of Environment&Natural Resourses, Renmin University of China, Beijing 100872, China

Received Date: 2020-10-11
Available Online: 2022-01-21

Abstract

Abstract

The lipids in the sludge can be extracted to produce biodiesel, and the ceramide can be chromatographed out of it, which are both important resource recovery methods. The residue remaining after the sludge is refined, can be prepared into biochar with adsorption effect by pyrolysis. In this study, the original sludge and degreasing sludge (the residue after Soxhlet extraction of the original sludge) were used to prepare biochar under anaerobic conditions at 500℃, 600℃, 700℃, and 800℃. They were characterized by scanning electron microscope (SEM), Fourier transform infrared (FT-IR), BET specific surface area analysis, to explore the regularity of biochar prepared by sludge changeing with temperature conditions. The study found that the microscopic surface of biochar prepared by degreasing sludge became rougher, the pore size increased, the specific surface area decreased, and the number of surface functional groups decreased, with the increase of temperature. Compared with the original sludge, the degreased sludge-based biochar showed weaker adsorption performance, but still had considerable value and application potential for further research.
- sludge,
- degreased carbonization,
- biochar,
- temperature,
- character

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References(20)

References

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