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生物聚合物稳定对生物刺激或生物增强矿山残留对潜在的技术盐生产的作用

Joana B Caldeira¹, António A Correia², Rita Branco¹

¹Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), ARISE, Department of Life Sciences, Universidade de Coimbra, 3000-456, Coimbra, Portugal.

Scientific reports

|October 27, 2024

概括

这项研究表明,生物聚合物可以将矿废物转化为安全的技术溶. 碳氧甲基纤维素 (CMC) 降低了金属漏和增强了微生物,而桑坦 (XG) 提高了工程用途的土壤强度.

科学领域:

环境科学环境科学
地质化学地质化学
微生物学微生物学

背景情况:

矿山废物带来了环境挑战,但可以被重新利用为生态恢复的技术盐.
技术盐中的生物活动对土壤功能至关重要,但经常被忽视.
生物聚合物通过促进反应和封装污染物提供创新的生物修复解决方案.

研究的目的:

评估生物和稳定矿残留物用于技术盐生产.
评估使用Diaphorobacter polyhydroxybutyrativorans B2A2W2.2对矿山尾矿的生物刺激/生物增强效应.
确定波特兰水泥,碳氧甲基纤维素 (CMC) 和香 (XG) 对残留物稳定的影响.

主要方法:

矿山尾矿经过生物刺激或生物增量.
使用波特兰水泥,CMC或XG实现了稳定.
使用流量系统分析了残留物特性 (金属漏,微生物计数,强度,生态毒性).

主要成果:

生物涂料金属元素随着时间的推移而减少,除了铁 (Fe).
CMC和水泥导致低漏率和高活性微生物数量 (10^6 CFU/ml).
在生物增强残留物中XG稳定增加了Fe漏,而CMC添加显著减少了Fe漏,并增加了微生物数量.

结论:

生物刺激和CMC稳定的残留物产生了适合生物应用的低毒性,低漏技术盐.
作为地质技术应用中的稳定剂,XG被证明是有效的,增强了压缩强度.
这项研究强调了选择适合特定技术功能的生物聚合物的重要性.

关键词:

生物接触可以达到生物接触.生物聚合物是一种生物聚合物.金属回收利用的方法可持续发展可持续性可持续性废物处理废物处理的方法

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