scholarly journals Environmental Monitoring of Water Quality as a Planning and Management Tool: A Case Study of the Rodrigo de Freitas Lagoon, Rio de Janeiro, Brazil

2020 ◽  
Author(s):  
Giordano Gandhi ◽  
Obraczka Marcelo ◽  
de Souza Monica Medeiros ◽  
Mello Monique Alves Leite ◽  
e Marques Carine Ferreira
Keyword(s):  
Water Quality ◽  
Environmental Monitoring ◽  
Rio De Janeiro ◽  
Management Tool ◽  
Planning And Management

scholarly journals Model simulation of heavy metals in river systems: Case study the Negro river basin

2019 ◽  
pp. 19-35
Author(s):  
Carlos Alberto Palacio-Tobón ◽  
Sara Cristina Vieria-Agudelo ◽  
Julio César Saldarriaga-Molina ◽  
Luis Miguel Ruíz-Jaramillo
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Model Simulation ◽  
Management Tool ◽  
Predictive Capability ◽  
Quality Model ◽  
River Systems ◽  
Negro River ◽  
1D Modeling

This work describes a water quality model for heavy metals simulation in river systems. The proposed strategy comprises an 1D modeling approach with an ADZ-QUASAR extension to represent the behavior of heavy metals. This methodology seeks to strengthen their predictive capability based on the integration of variables which play an important role in the adsorption and desorption of these particles. The methodology was implemented in a reach of the Negro river (eastern side of Antioquia, Colombia), using Chromium, Copper and Nickel as heavy metals, because these are the heavy metals representative of the currents in the study area. Results are showing, with some degree of uncertainty, the capacity of the methodology to predict the behavior of environmental interesting substances, which makes it an important management tool.

Model-based quality management of groundwater resources – catchment area Liedern, Germany

2012 ◽  
Vol 66 (1) ◽  
pp. 210-216
Author(s):  
Christine Kübeck ◽  
Carsten Hansen ◽  
Christoph König ◽  
Dorothea Denzig ◽  
Wolfgang van Berk
Keyword(s):  
Water Quality ◽  
Reactive Transport ◽  
Transport Model ◽  
Groundwater Resources ◽  
Iron Concentration ◽  
Hydrogeochemical Processes ◽  
Management Tool ◽  
Raw Water ◽  
Raw Water Quality

Strategies of groundwater protection in agricultural dominated areas are mainly based on a general reduction of the input of nutrients like nitrate. However, preventive measures in different parts of the catchment may provide very different effects on raw water quality. Exemplified on the case study ‘Liedern’ (BEW GmbH Bocholt, Germany) it is shown that hydrogeochemical processes along the flow path and in the well strongly affect the results of agricultural measures in terms of modality and efficiency. Thus, a reduction of fertilization in the vicinity of the well gallery leads to a decrease of nitrate concentration in the raw water. Whereas agricultural measures in the eastern part of the catchment do not influence nitrate, but cause a reduction of the iron concentration and rate of incrustation in the wells after 18 years. In this study we present a management tool that enables assessment of future trends in raw water quality. The tool is based on a reactive transport model which considers land use dynamics as an instrument to influence groundwater/raw water quality. A thermodynamic equilibrium approach is applied for modelling hydrogeochemical processes between aqueous, solid and gaseous phases. Kinetically controlled reactions like the microbial degradation of organic carbon are expressed by multiplicative Michaelis–Menten equations.

scholarly journals Use of the Water Quality Index as indicator of tourism impact management in Paraty, Rio de Janeiro/Brazil

2017 ◽  
Vol 11 (4) ◽  
pp. 466-474
Author(s):  
Estefan Monteiro da Fonseca ◽  
José Antônio Baptista Neto ◽  
Carlos Marclei Arruda Rangel ◽  
Leonardo Da Silva Lima ◽  
Priscila S de Oliveira
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Rio De Janeiro ◽  
Quality Index ◽  
Local Development ◽  
Management Tool ◽  
Natural State ◽  
Tourism Impact ◽  
Surrounding Water ◽  
Starting Point

HighlightsTourism development on the south coast of Rio de Janeiro;Water quality impacts resulted from human presence;We selected 20 water sampling stations and evaluated the seasonal water quality variation;Water quality changes between seasons became clear;The Water Quality Index (WQI) was very useful for the classification of the waters monitored. PurposeThe main objective of the present paper is to detect the tourism influence in the water quality of the municipality of Paraty and surrounding water bodies, analyze individual parameters and use the WQI.Design/methodology/approachIn the present paper a simple management tool was applied in order to prevent future tourism impacts in coastal areas.FindingsAlthough considered in its natural state, the area already showed impact signals.Research limitations/implicationsThe analysis need to be more enhanced for finding the spatiotemporal evolution in the estuarine environment.Practical implicationsThe paper provides a starting point for minimizing the negative impacts of tourism.Originality/valueThe present paper contributes so that tourism may become a positive factor of local development. 

Surface Water Quality Assessment. Case Study: Târnava Mare River, Mediaș Town-Romania

2011 ◽  
Vol 4 (5) ◽  
pp. 70-72
Author(s):  
Cristina Roşu ◽  
◽  
Ioana Piştea ◽  
Carmen Roba ◽  
Mihaela Mihu ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Quality Assessment ◽  
Surface Water Quality ◽  
Water Quality Assessment

IMPACT OF INDUSTRIAL EFFLUENTS ON GROUND WATER QUALITY- A CASE STUDY OF GUJRANWALA, PAKISTAN

2018 ◽  
Vol 2 (1) ◽  
pp. 18-20 ◽  
Author(s):  
Muhammad Usman ◽  
Mian Bilal Khalid ◽  
Hafsa Yasin ◽  
Abdul Nasir, ◽  
Ch Arslan
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Industrial Effluents ◽  
Ground Water Quality
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