| Issue |
E3S Web Conf.
Volume 261, 2021
2021 7th International Conference on Energy Materials and Environment Engineering (ICEMEE 2021)
|
|
|---|---|---|
| Article Number | 04024 | |
| Number of page(s) | 4 | |
| Section | Environmental Ecological Restoration and Energy Saving, Environmental Protection and Emission Reduction | |
| DOI | https://doi.org/10.1051/e3sconf/202126104024 | |
| Published online | 21 May 2021 | |
The Improvement Effect of Enteromorpha prolifera Biochar on Chromium-Contaminated Soil
1
Ocean University of China, College of Environmental Science and Engineering, 266000 Qingdao, China
2
Urumuqi Meteorological Satellite Ground Station, 830011 Urumuqi, China
* Corresponding author: 1224199212@qq.com
Using biochar to improve chromium-contaminated soil is a promising method. In this study, the Enteromorpha prolifera biochar was prepared at different temperatures (300 °C 700 °C), and rye pot experiment was conducted to examine the improvement effect of Enteromorpha prolifera biochar on the chromium-contaminated soils. The results showed that biochar could obviously promote the growth of rye in the chromium-contaminated soil. Compared with the control group, plant height, root length and biomass were increased, with the maximum increases of 38.9 %, 32.1 % and 34.7 %. The chlorophyll content was increased to 2.2 - 4.6 times, and the proline and peroxidase (POD) contents were significantly decreased, with maximum decreases of 72.8 % and 93.2 %. The Enteromorpha prolifera biochar prepared at 400 °C had a best effect on improvement of chromium-contaminated soil at the dose of 30 g·kg-1. The biochar effectively alleviated the stress from Cr (VI), and promoted the growth and metabolism of rye.
© The Authors, published by EDP Sciences, 2021
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