A Review on Storage Process Models for Improving Water Quality Modeling in Rivers

Water quality is intricately linked to the global water crisis since the availability of safe, clean water is essential for sustaining life and ensuring the well-being of communities worldwide. Pollutants such as industrial chemicals, agricultural runoff, and untreated sewage frequently enter rivers...

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Main Authors: Amir Mohammad Saadat, Sajad Khodambashi Emami, Hossein Hamidifar
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Hydrology
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Online Access:https://www.mdpi.com/2306-5338/11/11/187
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author Amir Mohammad Saadat
Sajad Khodambashi Emami
Hossein Hamidifar
author_facet Amir Mohammad Saadat
Sajad Khodambashi Emami
Hossein Hamidifar
author_sort Amir Mohammad Saadat
collection DOAJ
description Water quality is intricately linked to the global water crisis since the availability of safe, clean water is essential for sustaining life and ensuring the well-being of communities worldwide. Pollutants such as industrial chemicals, agricultural runoff, and untreated sewage frequently enter rivers via surface runoff or direct discharges. This study provides an overview of the key mechanisms governing contaminant transport in rivers, with special attention to storage and hyporheic processes. The storage process conceptualizes a ubiquitous reactive boundary between the main channel (mobile zone) and its surrounding slower-flow areas (immobile zone). Research from the last five decades demonstrates the crucial role of storage and hyporheic zones in influencing solute residence time, nutrient cycling, and pollutant degradation. A review of solute transport models highlights significant advancements, including models like the transient storage model (TSM) and multirate mass transport (MRMT) model, which effectively capture complex storage zone dynamics and residence time distributions. However, more widely used models like the classical advection–dispersion equation (ADE) cannot hyporheic exchange, limiting their application in environments with significant storage contributions. Despite these advancements, challenges remain in accurately quantifying the relative contributions of storage zones to solute transport and degradation, especially in smaller streams dominated by hyporheic exchange. Future research should integrate detailed field observations with advanced numerical models to address these gaps and improve water quality predictions across diverse river systems.
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spelling doaj-art-1ce709f803cf4d27bcd2b98d24d334562025-08-20T01:53:58ZengMDPI AGHydrology2306-53382024-11-01111118710.3390/hydrology11110187A Review on Storage Process Models for Improving Water Quality Modeling in RiversAmir Mohammad Saadat0Sajad Khodambashi Emami1Hossein Hamidifar2Department of Water Engineering and Management, Tarbiat Modares University, Tehran 14115-111, IranDepartment of Water Engineering and Management, Tarbiat Modares University, Tehran 14115-111, IranDepartment of Hydrology and Hydrodynamics, Institute of Geophysics, Polish Academy of Sciences, 01-452 Warsaw, PolandWater quality is intricately linked to the global water crisis since the availability of safe, clean water is essential for sustaining life and ensuring the well-being of communities worldwide. Pollutants such as industrial chemicals, agricultural runoff, and untreated sewage frequently enter rivers via surface runoff or direct discharges. This study provides an overview of the key mechanisms governing contaminant transport in rivers, with special attention to storage and hyporheic processes. The storage process conceptualizes a ubiquitous reactive boundary between the main channel (mobile zone) and its surrounding slower-flow areas (immobile zone). Research from the last five decades demonstrates the crucial role of storage and hyporheic zones in influencing solute residence time, nutrient cycling, and pollutant degradation. A review of solute transport models highlights significant advancements, including models like the transient storage model (TSM) and multirate mass transport (MRMT) model, which effectively capture complex storage zone dynamics and residence time distributions. However, more widely used models like the classical advection–dispersion equation (ADE) cannot hyporheic exchange, limiting their application in environments with significant storage contributions. Despite these advancements, challenges remain in accurately quantifying the relative contributions of storage zones to solute transport and degradation, especially in smaller streams dominated by hyporheic exchange. Future research should integrate detailed field observations with advanced numerical models to address these gaps and improve water quality predictions across diverse river systems.https://www.mdpi.com/2306-5338/11/11/187storage zonewater qualitydispersion coefficienthyporheic zoneresidence time distributiontracer test
spellingShingle Amir Mohammad Saadat
Sajad Khodambashi Emami
Hossein Hamidifar
A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
Hydrology
storage zone
water quality
dispersion coefficient
hyporheic zone
residence time distribution
tracer test
title A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
title_full A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
title_fullStr A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
title_full_unstemmed A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
title_short A Review on Storage Process Models for Improving Water Quality Modeling in Rivers
title_sort review on storage process models for improving water quality modeling in rivers
topic storage zone
water quality
dispersion coefficient
hyporheic zone
residence time distribution
tracer test
url https://www.mdpi.com/2306-5338/11/11/187
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