scholarly journals BUILDING THE MODEL OF MANAGEMENT AND INFORMATION SHARING OF ENVIRONMENTAL WATER QUALITY – DONG NAI BASIN AS A CASE STUDY

2011 ◽  
Vol 14 (1) ◽  
pp. 16-28
Author(s):  
Long Ta Bui ◽  
Truong Duy Cao ◽  
Huong Thi My Hoang

Recently, due to the impact of natural factors and human activities, the water quality in several basins in Vietnam has been seriously degraded. Pressing issues happening in the entire river basin-scale is polluted by waste from urban and industrial areas, oil spills and waste management. So far the system of policies and legal documents relating to protection of water quality basin is still missing and not synchronized, ensure funding for activities to protect water quality basin not meeting actual requirements. In particularly, there is no information data system to cater for the management of basin water quality which is the core of the problem of environmental protection of river basins. The main reason that make pollution happened at the entire river basin scale is bad waste management. which partly due to the lack of a good system of technical data and legal documents related to protection of river basin water quality. In this paper, we present research results from the process of building model for management and information sharing of environmental water quality at Dong Nai river basin.

1997 ◽  
Vol 12 (4) ◽  
pp. 275-284 ◽  
Author(s):  
Ari Jolma ◽  
Carlo De Marchi ◽  
Mark Smith ◽  
B.J.C. Perera ◽  
László Somlyódy

2012 ◽  
Vol 12 (6) ◽  
pp. 727-736
Author(s):  
S. Piel ◽  
E. Baurès ◽  
S. Masclet ◽  
J. Perot ◽  
O. Thomas

This study proposes a new approach for improving resource quality management, monitoring and treatment plant management, whatever the environmental and climatic stressors. First trend analysis of water quality at a river basin scale, based on historical water quality data and multivariate exploitation (principal component analysis, PCA), led to a classification of the monitoring stations with regard to the main pressures (land use, urbanization and hydroclimatic impacts). This method was applied to the Vilaine's watershed, the largest river basin in Brittany, western France, and one which is under agricultural and urban pressure. A complementary research using a UV index was proposed for the evaluation of spatial and temporal variations of water quality. This approach may be considered as a useful and relevant tool to quickly assess the variation of water quality and the main explanatory factors. It also points out monitoring stations under specific stressors considered as outliers regarding UV parameters. Finally, PCA and UV index give complementary results. PCA allows factors influencing drinking water resource to be highlighted and the UV index allows global water quality under specific times and impacts to be reflected.


1974 ◽  
Vol 9 (1) ◽  
pp. 25-29
Author(s):  
M. B. Bayer

Abstract This paper describes a method of applying probabilistic DO (dissolved oxygen) and BOD (biochemical oxygen demand) standards in river basin water quality models. Maximum likelihood estimators for the DO and BOD concentrations variances for each reach are used to obtain a lower bound for BOD so that the probability of violating specified DO and BOD standards is less than Θ per cent in any reach. These boundary values for DO and BOD concentrations are incorporated into a nonlinear water quality optimization model for finding the minimum cost set of wastewater treatment plant efficiencies required to meet DO and BOD standards. The method also provides the minimum DO concentration and the maximum BOD concentration which may be expected to occur 1-Θ of the time for any reach.


1999 ◽  
Vol 40 (10) ◽  
pp. 103-110
Author(s):  
Carlo De Marchi ◽  
Pavel Ivanov ◽  
Ari Jolma ◽  
Ilia Masliev ◽  
Mark Griffin Smith ◽  
...  

This paper presents the major features of two decision support systems (DSS) for river water quality modeling and policy analysis recently developed at the International Institute of Applied Systems Analysis (IIASA), DESERT and STREAMPLAN. DESERT integrates in a single package data management, model calibration, simulation, optimization and presentation of results. DESERT has the flexibility to allow the specification of both alternative water quality models and flow hydraulics for different branches of the same river basin. Specification of these models can be done interactively through Microsoft® Windows commands and menus and an easy to use interpreted language. Detailed analysis of the effects of parameter uncertainty on water quality results is integrated into DESERT. STREAMPLAN, on the other hand, is an integrated, easy-to-use software system for analyzing alternative water quality management policies on a river basin level. These policies include uniform emission reduction and effluent standard based strategies, ambient water quality and least-cost strategies, total emission reduction under minimized costs, mixed strategies, local and regional policies, and strategies with economic instruments. A distinctive feature of STREAMPLAN is the integration of a detailed model of municipal wastewater generation with a water quality model and policy analysis tools on a river basin scale.


Water Policy ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 768-788
Author(s):  
Nitin Bassi ◽  
Guido Schmidt ◽  
Lucia De Stefano

Abstract The main objective of this research paper is to assess the extent to which the concept of water accounting has been applied for water management at the river basin scale in India. For this, the study first assesses the importance given to the use of water accounting for water management in India's national water policy. It then analyses the evolution of water accounting approaches in India through a systematic review of the past research studies on the theme. Further, it looks at their contribution to decision-making concerning allocation of water resources and resolving conflicts over water sharing. Finally, it identifies the existing gaps in the methodologies for water accounting so far used in India.


Sign in / Sign up

Export Citation Format

Share Document