NDLI: An Interval-Parameter Waste-Load-Allocation Model for River Water Quality Management Under Uncertainty

Content Provider	Springer Nature Link
Author	Qin, Xiaosheng Huang, Guohe Chen, Bing Zhang, Baiyu
Copyright Year	2009
Abstract	A simulation-based interval quadratic waste load allocation (IQWLA) model was developed for supporting river water quality management. A multi-segment simulation model was developed to generate water-quality transformation matrices and vectors under steady-state river flow conditions. The established matrices and vectors were then used to establish the water-quality constraints that were included in a water quality management model. Uncertainties associated with water quality parameters, cost functions, and environmental guidelines were described as intervals. The cost functions of wastewater treatment units were expressed in quadratic forms. A water-quality planning problem in the Changsha section of Xiangjiang River in China was used as a study case to demonstrate applicability of the proposed method. The study results demonstrated that IQWLA model could effectively communicate the interval-format uncertainties into optimization process, and generate inexact solutions that contain a spectrum of potential wastewater treatment options. Decision alternatives can be generated by adjusting different combinations of the decision variables within their solution intervals. The results are valuable for supporting local decision makers in generating cost-effective water quality management strategies.
Starting Page	999
Ending Page	1012
Page Count	14
File Format	PDF
ISSN	0364152X
Journal	Environmental Management
Volume Number	43
Issue Number	6
e-ISSN	14321009
Language	English
Publisher	Springer New York
Publisher Date	2009-02-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Interval Quadratic programming Water quality management Uncertainty Optimization Environmental Management Ecology Nature Conservation Atmospheric Protection/Air Quality Control/Air Pollution Forestry Management Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Ecology Pollution Global and Planetary Change

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