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从采矿废水中通过生物积累和Eichhornia crassipes的热分离去除

Franco Hernan Gomez^1,2,3, Maria Cristina Collivignarelli^4,5, Stefano Bellazzi⁶

¹Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, 25123, Brescia, Italy.

Environmental science and pollution research international

|December 20, 2024

概括

工业黄金开采的废水在一个建成的湿地中使用艾希霍尼亚虫进行了处理,减少了89%的. 一个热系统从植物组织中回收,为ASGM提供了基于自然的解决方案.

科学领域:

环境科学环境科学
生物技术是生物技术.
化学工程是化学工程的重要组成部分.

背景情况:

工业和小规模的金矿开采 (ASGM) 释放,造成环境污染.
巨型植物Eichhornia crassipes (EC) 提出了生态挑战,但有生物积累的潜力.
将ASGM废水处理与资源回收相结合,对于可持续性至关重要.

研究的目的:

评估使用EC去除ASGM废水中的的建筑湿地 (CW) 的有效性.
评估一种用于从EC组织中提取的热回收系统 (RT).
开发和验证用于模拟生物积累的数学模型 (AcMod).

主要方法:

使用EC的试点规模的CW系统用于处理来自ASGM的含废水 (WWm).
在特定的液压保留时间 (HRT) 和流量 (Q) 下,在EC中的生物积累被监测了50天.
带有的EC组织在400°C下进行了10分钟的热分离;为模拟开发了一个数学模型 (AcMod).

主要成果:

通过CW系统,废水中的度降低了89%.
热分离系统使EC组织中的总 (THg) 平均降低了87.43%.
AcMod模拟表明生物积累产量低于观察到的,这归因于使用的有限的EC生物质.

结论:

联合CW和RT系统为ASGM的污染提供了一个可行的基于自然的解决方案 (NBS).
这种综合方法促进ASGM过程中的资源循环和废物管理.
建议进一步优化EC生物质,以提高生物积累效率.

关键词:

艾赫霍尼亚毛虫 (Eichhornia crassipes) 是一种的植物.生物积累生物积累生物积累建造的湿地建造的湿地水星水星水星水星水星基于自然的解决方案废水是废水,废水就是废水.

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