Next Article in Journal
Regional Variations of Public Perception on Contaminated Industrial Sites in China and Its Influencing Factors
Next Article in Special Issue
A Study on the Preparation of Regular Multiple Micro-Electrolysis Filler and the Application in Pretreatment of Oil Refinery Wastewater
Previous Article in Journal
The Adoption of Roles by Primary Care Providers during Implementation of the New Chronic Disease Guidelines in Urban Mongolia: A Qualitative Study
Previous Article in Special Issue
Concurrent Phosphorus Recovery and Energy Generation in Mediator-Less Dual Chamber Microbial Fuel Cells: Mechanisms and Influencing Factors
Article Menu

Export Article

Open AccessArticle
Int. J. Environ. Res. Public Health 2016, 13(4), 408; doi:10.3390/ijerph13040408

Modelling and Analysis of Hydrodynamics and Water Quality for Rivers in the Northern Cold Region of China

1
State Key Laboratory of Resources and Environmental Information Systems, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2
The Engineering Science, Computer Science and Imaging Laboratory, The National Center for Scientific Research, University of Strasbourg, Illkirch 67412, France
3
University of Chinese Academy of Sciences, Beijing 100049, China
4
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
5
Southern Trunk Channel Management Office of South-to-North Water Diversion Project, Beijing 100195, China
6
Heilongjiang Provincial Research Institute of Environmental Science, Harbin 150056, China
7
Key Laboratory of Agri-informatics, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Rao Bhamidiammarri and Kiran Tota-Maharaj
Received: 27 December 2015 / Revised: 27 March 2016 / Accepted: 31 March 2016 / Published: 8 April 2016
(This article belongs to the Special Issue Environmental Systems Engineering)
View Full-Text   |   Download PDF [6227 KB, uploaded 8 April 2016]   |  

Abstract

In this study, the Mudan River, which is the most typical river in the northern cold region of China was selected as the research object; Environmental Fluid Dynamics Code (EFDC) was adopted to construct a new two-dimensional water quality model for the urban sections of the Mudan River, and concentrations of CODCr and NH3N during ice-covered and open-water periods were simulated and analyzed. Results indicated that roughness coefficient and comprehensive pollutant decay rate were significantly different in those periods. To be specific, the roughness coefficient in the ice-covered period was larger than that of the open-water period, while the decay rate within the former period was smaller than that in the latter. In addition, according to the analysis of the simulated results, the main reasons for the decay rate reduction during the ice-covered period are temperature drop, upstream inflow decrease and ice layer cover; among them, ice sheet is the major contributor of roughness increase. These aspects were discussed in more detail in this work. The model could be generalized to hydrodynamic water quality process simulation researches on rivers in other cold regions as well. View Full-Text
Keywords: cold region; hydrodynamic; water quality; model; numerical simulation cold region; hydrodynamic; water quality; model; numerical simulation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Tang, G.; Zhu, Y.; Wu, G.; Li, J.; Li, Z.-L.; Sun, J. Modelling and Analysis of Hydrodynamics and Water Quality for Rivers in the Northern Cold Region of China. Int. J. Environ. Res. Public Health 2016, 13, 408.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top