Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies

CE-QUAL-W2 (W2) is a widely-used two-dimensional, laterally averaged, longitudinal/vertical, hydrodynamic and water quality model. This model was modified and enhanced to include a mercury (Hg) simulation module for simulating Hg transport and cycling in water bodies. The Hg simulation module in W2...

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Main Authors: Senlin Zhu, Zhonglong Zhang, Xiaobo Liu
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/9/9/643
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author Senlin Zhu
Zhonglong Zhang
Xiaobo Liu
author_facet Senlin Zhu
Zhonglong Zhang
Xiaobo Liu
author_sort Senlin Zhu
collection DOAJ
description CE-QUAL-W2 (W2) is a widely-used two-dimensional, laterally averaged, longitudinal/vertical, hydrodynamic and water quality model. This model was modified and enhanced to include a mercury (Hg) simulation module for simulating Hg transport and cycling in water bodies. The Hg simulation module in W2 is able to model the physical and biochemical processes including adsorption and desorption of Hg species on multi-solids, settling and resuspension, sediment burial of adsorbed Hg, diffusive exchange between water column and sediment layer, volatilization, and biogeochemical transformations among Hg species. This paper describes the Hg simulation module, W2 model validation and its application to the Xiaxi River, China, a historical Hg contaminated water body. The W2 model was evaluated using the Xiaxi River data collected in 2007 and 2008. Model results show that W2 was able to predict the total Hg and methylmercury concentrations observed for the Xiaxi River. The Xiaxi River W2 model also provides a foundation for the future investigations of Hg contamination in the Xiaxi River. This application demonstrated the W2 model capability in predicting complex transport and cycling of Hg species in water bodies.
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spelling doaj.art-d5fe414dd8a74eb8aed32486a82a947e2022-12-22T03:12:15ZengMDPI AGWater2073-44412017-08-019964310.3390/w9090643w9090643Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water BodiesSenlin Zhu0Zhonglong Zhang1Xiaobo Liu2State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaLimnoTech, Environmental Laboratory, Engineer Research and Development Center, Davis, CA 95616, USAChina Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaCE-QUAL-W2 (W2) is a widely-used two-dimensional, laterally averaged, longitudinal/vertical, hydrodynamic and water quality model. This model was modified and enhanced to include a mercury (Hg) simulation module for simulating Hg transport and cycling in water bodies. The Hg simulation module in W2 is able to model the physical and biochemical processes including adsorption and desorption of Hg species on multi-solids, settling and resuspension, sediment burial of adsorbed Hg, diffusive exchange between water column and sediment layer, volatilization, and biogeochemical transformations among Hg species. This paper describes the Hg simulation module, W2 model validation and its application to the Xiaxi River, China, a historical Hg contaminated water body. The W2 model was evaluated using the Xiaxi River data collected in 2007 and 2008. Model results show that W2 was able to predict the total Hg and methylmercury concentrations observed for the Xiaxi River. The Xiaxi River W2 model also provides a foundation for the future investigations of Hg contamination in the Xiaxi River. This application demonstrated the W2 model capability in predicting complex transport and cycling of Hg species in water bodies.https://www.mdpi.com/2073-4441/9/9/643CE-QUAL-W2MercuryMethylmercurycyclingMercury simulation module
spellingShingle Senlin Zhu
Zhonglong Zhang
Xiaobo Liu
Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
Water
CE-QUAL-W2
Mercury
Methylmercury
cycling
Mercury simulation module
title Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
title_full Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
title_fullStr Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
title_full_unstemmed Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
title_short Enhanced Two Dimensional Hydrodynamic and Water Quality Model (CE-QUAL-W2) for Simulating Mercury Transport and Cycling in Water Bodies
title_sort enhanced two dimensional hydrodynamic and water quality model ce qual w2 for simulating mercury transport and cycling in water bodies
topic CE-QUAL-W2
Mercury
Methylmercury
cycling
Mercury simulation module
url https://www.mdpi.com/2073-4441/9/9/643
work_keys_str_mv AT senlinzhu enhancedtwodimensionalhydrodynamicandwaterqualitymodelcequalw2forsimulatingmercurytransportandcyclinginwaterbodies
AT zhonglongzhang enhancedtwodimensionalhydrodynamicandwaterqualitymodelcequalw2forsimulatingmercurytransportandcyclinginwaterbodies
AT xiaoboliu enhancedtwodimensionalhydrodynamicandwaterqualitymodelcequalw2forsimulatingmercurytransportandcyclinginwaterbodies