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Related Experiment Videos

[Impact of hydrothermal process on the dewaterability and degrease performance of restaurant garbage].

Lian-hail Ren1, Yong-feng Nie, Jian-guo Liu

  • 1Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. hjx-nicyf@tsinghua.edu.cn

Huan Jing Ke Xue= Huanjing Kexue
|November 23, 2006
PubMed
Summary
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Hydrothermal processing enhances restaurant garbage dewaterability and degreasing. Optimal results achieved at 180°C for 100 minutes, improving waste treatment and oil recovery.

Area of Science:

  • Environmental Engineering
  • Waste Management
  • Chemical Engineering

Context:

  • Restaurant garbage presents significant dewatering and degreasing challenges.
  • Effective treatment is crucial for improving waste management processes and resource recovery.

Purpose:

  • To investigate the impact of hydrothermal processing on restaurant garbage dewaterability and degreasing.
  • To determine optimal conditions for enhancing these properties.

Summary:

  • Hydrothermal treatment was applied to restaurant garbage, varying temperature and retention time.
  • Dewaterability initially decreased then increased with heating, with optimal performance at 180°C for 100 minutes.
  • Degreasing performance improved with increased temperature and time, with maximum oil extraction at 160°C for 80 minutes, followed by a decrease due to oil hydrolysis.

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Impact:

  • Optimized hydrothermal conditions can significantly improve restaurant waste dewaterability and degreasing.
  • This process facilitates the recovery of floatable oil, contributing to resource utilization.
  • Understanding the kinetics of solid grease extraction aids in process design and optimization.