基于机器学习,模拟和优化用于酸性矿井排水 (AMD) 的多重透反应屏障 (多PRB)
Lai Zhou1,2, Jiliang Qian3,4, Yanzhuo Liu3,4
1Engineering Research Center of Ministry of Education for Mine Ecological Restoration, Xuzhou, 221116, Jiangsu, China. zhoulai99@cumt.edu.cn.
Environmental geochemistry and health
|February 6, 2026
概括
本研究介绍了一种针对多重透性反应性屏障 (多重PRB) 的优化设计,用于处理酸性矿井排水 (AMD). 机器学习显著改善了设计过程,提高了治疗效率和寿命.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 地质化学 地质化学
背景情况:
- 酸性矿井排水 (AMD) 带来了重大的环境挑战.
- 透反应屏障 (PRBs) 是一个有前途的在现场治疗AMD的技术.
- 目前多个PRB的实施受到缺乏机制理解和决策工具的限制.
研究的目的:
- 开发一个合过程数值模型来模拟多PRB中的协同TFe和SO42−去除.
- 为高效的多PRB设计提出一种机器学习集成优化方法 (ML-NSGAII).
- 确定关键的设计参数,并制定AMD治疗的实用设计策略.
主要方法:
- 开发用于多PRB模拟的合过程数值模型.
- 作为非主导排序遗传算法 (ML-NSGAII) 中的替代模型,集成一个逆向传播神经网络 (BPNN).
- 应用斯皮尔曼相关性,SHAP分析和TOPSIS-重法用于参数识别和最佳设计选择.
主要成果:
- 该ML-NSGAII方法减少了99.7%的计算负载,具有高度准确的替代模型 (R2>0.99).
- 液压负荷和填料尺寸被确定为最有影响力的设计参数.
- 优化的多PRB设计,使用石灰石,生物炭和D201树脂,显著提高了使用寿命和处理能力,同时降低了成本.
结论:
- 已经建立了一个计算效率高且实用的策略,用于设计用于AMD治疗的多PRB.
- 开发的ML-NSGAII框架为优化复杂的环境修复系统提供了一个强大的工具.
- 这项研究为在酸性矿井排水整治中有效实施多重PRB提供了宝贵的见解.
相关概念视频
02:33Lewis Acids and Bases
48.4K
In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
48.4K
02:54Ions as Acids and Bases
26.6K
Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
26.6K
01:13Relative Reactivity of Carboxylic Acid Derivatives
3.8K
Carboxylic acid derivatives such as acid halides, anhydrides, esters, and amides undergo nucleophilic acyl substitution reactions with varying degrees of reactivity.
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions
3.8K
03:26Acids, Bases and Neutralization Reactions
63.9K
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society.
63.9K
02:58Bronsted-Lowry Acids and Bases
105.6K
The acid-base reaction class has been studied for quite some time. In 1680, Robert Boyle reported traits of acid solutions that included their ability to dissolve many substances, to change the colors of certain natural dyes, and to lose these traits after coming in contact with alkali (base) solutions. In the eighteenth century, it was recognized that acids have a sour taste, react with limestone to liberate a gaseous substance (now known to be CO2), and interact with alkalis to form neutral...
105.6K
02:23Acid-Base Titration Curves
141.6K
A titration curve is a plot of some solution property versus the amount of added titrant. For acid-base titrations, solution pH is a useful property to monitor because it varies predictably with the solution composition and, therefore, may be used to monitor the titration’s progress and detect its endpoint. Acid-base titration can be performed with a strong acid and a strong base, a strong acid and a weak base, or a strong base and a weak acid.
For a titration carried out for 25.00 mL of...
For a titration carried out for 25.00 mL of...
141.6K