微生物粉尘抑制剂对不同度的变形煤灰的有效性和机制
Yanyun Zhao1, Suning Li1, Mingyue Wu2
1College of Safety and Environmental Engineering, Shandong University of Science and Technology, No. 579, Qianwangang Road, Xin'an Street, Huangdao District, Qingdao, Shandong, China.
Environmental science and pollution research international
|September 4, 2024
概括
微生物粉尘抑制剂通过微生物诱导碳酸盐沉 (MICP) 有效地巩固煤炭粉尘,减少风雨侵蚀. 这项技术为采矿业务中的环境保护提供了有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 地质技术工程 地质技术工程
- 微生物学 微生物学
背景情况:
- 开放式煤矿开采造成了严重的环境退化和运营危险.
- 微生物诱导碳酸盐沉 (MICP) 显示出抑制尘埃的潜力.
研究的目的:
- 评估微生物防尘剂在煤灰上的防尘效率和巩固.
- 研究不同类型的煤炭中微生物粉尘抑制剂的潜在机制.
主要方法:
- 在煤样本上进行了抗风和抗雨的测试.
- 巩固剂的产量被量化为棕煤,矿和炭酸煤灰.
- 扫描电子显微镜与能量分散式X射线光谱 (SEM-EDS) 和X射线衍射 (XRD) 用于分析.
主要成果:
- 岩煤的质量损失为7.43 g·m−2·min−1 (风) 和98.62 g·m−2·min−1 (雨).
- 微生物抑制剂产生的0.15g/单位质量在色煤中的巩固剂,高于其他煤炭类型.
- 巩固产品被确定为石和瓦特里特 (碳酸).
结论:
- 微生物粉尘抑制剂通过沉粘性碳酸盐来产生密集,凝聚的质量.
- 这些碳酸盐封装了尘埃颗粒,并填充了间隙,增强了对侵蚀的抵抗力.
- MICP提供了一种有效的策略,用于减轻尘埃污染,提高煤矿环境的稳定性.
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