Int. J. Environ. Res. Public Health 2012, 9(12), 4504-4521; doi:10.3390/ijerph9124504
Article

Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China
* Author to whom correspondence should be addressed.
Received: 7 September 2012; in revised form: 21 November 2012 / Accepted: 28 November 2012 / Published: 7 December 2012
PDF Full-text Download PDF Full-Text [811 KB, Updated Version, uploaded 10 December 2012 14:08 CET]
The original version is still available [811 KB, uploaded 7 December 2012 11:51 CET]
Abstract: In recent years, water quality degradation associated with rapid socio-economic development in the Taihu Lake Basin, China, has attracted increasing attention from both the public and the Chinese government. The primary sources of pollution in Taihu Lake are its inflow rivers and their tributaries. Effective water environmental management strategies need to be implemented in these rivers to improve the water quality of Taihu Lake, and to ensure sustainable development in the region. The aim of this study was to provide a basis for water environmental management decision-making. In this study, the QUAL2K model for river and stream water quality was applied to predict the water quality and environmental capacity of the Hongqi River, which is a polluted tributary in the Taihu Lake Basin. The model parameters were calibrated by trial and error until the simulated results agreed well with the observed data. The calibrated QUAL2K model was used to calculate the water environmental capacity of the Hongqi River, and the water environmental capacities of CODCr NH3-N, TN, and TP were 17.51 t, 1.52 t, 2.74 t and 0.37 t, respectively. The results showed that the NH3-N, TN, and TP pollution loads of the studied river need to be reduced by 50.96%, 44.11%, and 22.92%, respectively to satisfy the water quality objectives. Thus, additional water pollution control measures are needed to control and reduce the pollution loads in the Hongqi River watershed. The method applied in this study should provide a basis for water environmental management decision-making.
Keywords: Hongqi River; pollution load reduction; QUAL2K model; simulation; water environmental capacity; water environmental management

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Zhang, R.; Qian, X.; Yuan, X.; Ye, R.; Xia, B.; Wang, Y. Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management. Int. J. Environ. Res. Public Health 2012, 9, 4504-4521.

AMA Style

Zhang R, Qian X, Yuan X, Ye R, Xia B, Wang Y. Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management. International Journal of Environmental Research and Public Health. 2012; 9(12):4504-4521.

Chicago/Turabian Style

Zhang, Ruibin; Qian, Xin; Yuan, Xingcheng; Ye, Rui; Xia, Bisheng; Wang, Yulei. 2012. "Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management." Int. J. Environ. Res. Public Health 9, no. 12: 4504-4521.

Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert