| Issue |
E3S Web Conf.
Volume 185, 2020
2020 International Conference on Energy, Environment and Bioengineering (ICEEB 2020)
|
|
|---|---|---|
| Article Number | 02010 | |
| Number of page(s) | 5 | |
| Section | Energy Saving and Environmental Protection Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202018502010 | |
| Published online | 01 September 2020 | |
Off-gas emission response mechanism in aerobic composting of sewage sludge: A review
1 Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China.
2 Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China.
3 College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
* Corresponding author: zjun@glut.edu.cn
In recent years, sludge output has increased rapidly with the dramatical growth of sewage treatment capacity. As a typical technology to treat organic solid waste, composting combined with land utilization is a wide-used to deal with sewage sludge. However, the off-gas emission, which includes odors and greenhouse gas, still is a ubiquitous problem in the composting industry. In this study, we reviewed the findings about this topic in the last decades. It was summarized that what was the emission mechanism of off gas and which are the key factors during aerobic composting of sewage sludge. The off-gas emission is corresponding to the anaerobic-region distribution in matrix, which is intensively affected by the obstructed gas region in matrix and physicochemical properties of the matrix particle. And some suggestions and prospects for future research are put forward to provide a reference for solving the off-gas emission problem of aerobic composting of sewage sludge in China.
© The Authors, published by EDP Sciences, 2020
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