相关实验视频

Updated: Jan 14, 2026

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors

Published on: December 6, 2018

预测地下水中的脱利用氧化回归层深度和含水层厚度

Abdul Hadi Al Nafi Khan¹, Jan Vanderborght², Erik Smolders²

¹Department of Earth and Environmental Sciences, KU Leuven, Heverlee, Belgium; Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh.

The Science of the total environment

|October 25, 2025

概括

弗兰德斯地表水中的高酸盐含量与地下水有关. 这项研究表明,含水层中的氧化区深度控制了到达河流的酸盐,影响了水质管理.

科学领域:

环境科学环境科学
水文学的水文学
水质管理水质管理

背景情况:

由于农业流域中酸盐度高,佛兰德斯面临地表水质问题.
了解从地下水到地表水中的酸盐转移对于有效的水资源管理至关重要.

研究的目的:

通过评估地下水层脱,估计地下水中酸盐负载到达地表水的部分.
根据含水层特性,开发一个流域出口的酸盐度预测模型.

主要方法:

通过使用多层地下水井的水化学数据来确定氧化回归的深度.
计算了氧化与总含水层厚度 (Hooghoudt等效) 的比率.
使用地下水酸盐输入和Hooghoudt等价的预测流域出口酸盐度.

主要成果:

在86个水库中,氧化与含水层厚度的比率平均为0.48.
结合地下水酸盐输入 (NEMO) 和Hooghoudt等效的模型在没有校准的情况下显示了令人鼓舞的性能 (NSE=0.42).
氧化分数显著影响了地表水中的酸盐度.

结论:

水库脱,以氧化回归深度表示,是控制地表水中酸盐的关键因素.
表面水对农业投入的酸盐反应仅限于充电水绕过显著脱的地区.
佛兰德斯大约41%的被研究的流域在没有显著的脱化的情况下有助于表面水的酸盐负载.

关键词:

脱化过程中的脱.地下水的地下水.建模模型建模模型亚酸盐是一种酸盐.氧化还原因子的临界线表面的水是表面的水.

更多相关视频

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

Published on: August 3, 2016

相关概念视频

Ladder Diagrams: Redox Equilibria

Ladder Diagrams: Redox Equilibria

Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...

Redox Titration: Overview

Redox Titration: Overview

Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox (reduction-oxidation) reaction. The process involves gradually adding a titrant with a known concentration of an oxidizing or reducing agent, to the analyte, the solution with an unknown concentration, until reaching the endpoint, which indicates the completion of the reaction between the two substances. Ensuring the analyte is in a single...