| Issue |
E3S Web of Conf.
Volume 406, 2023
2023 9th International Conference on Energy Materials and Environment Engineering (ICEMEE 2023)
|
|
|---|---|---|
| Article Number | 03035 | |
| Number of page(s) | 4 | |
| Section | Pollution Control and Ecosystem Management | |
| DOI | https://doi.org/10.1051/e3sconf/202340603035 | |
| Published online | 31 July 2023 | |
Study on the Technology of River Sediment Used as Planting Soil
1 Tianjin Port Engineering Institute Co., Ltd. of CCCC First Harbor Engineering Co., Ltd., Tianjin, China
2 CCCC First Harbor Engineering Company Ltd., Tianjin, China
3 No. 3 Engineering Company Ltd. of CCCC First Harbor Engineering Company Ltd., Qinghuangdao, China
4 Tianjin Port Engineering Design & Consulting Company Ltd.of CCCC First Harbor Engineering Co., Ltd., Tianjin, China
5 Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, PRC, Tianjin 300222, China
6 Key Laboratory of Tianjin Port Geotechnical Engineering, Tianjin 300222, China
* Corresponding author: jian2203@foxmail.com
This article conducted on-site experiments on improving river sediment to produce planting soil, using aerobic composting technology. The main composting parameters include carbon nitrogen ratio, moisture content, pH value, and temperature. In order to adjust the carbon nitrogen ratio of the sediment, auxiliary materials such as chicken manure, pig manure, rice straw, and wheat straw can be added according to the carbon nitrogen ratio of the sediment itself and relevant specifications. In this article, rice straw and rice husk are added. In the on-site test, a group of piles were maintained above 60 ℃for 3 days, achieving harmless treatment of the sediment. However, when the carbon nitrogen ratio of the pile is less than 20, it is difficult for the sediment temperature to reach 60 ℃, and it cannot be guaranteed that the sediment can achieve harmless treatment. After the improvement, the obstacle factors of the sediment have been reduced, meeting the standard requirements. Nutrients increased, and among the 36 indicators after sediment improvement, only nitrogen was below the standard limit, while potassium and magnesium exceeded the standard limit. All other indicators met the standard requirements.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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