Suitability of non-metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of water. Methods of test

1990 ◽  
Keyword(s):  
Human Consumption ◽  
Quality Of Water

scholarly journals Volumetric Quantification and Quality of Water Stored in a Mining Lake: A Case Study at Reocín Mine (Spain)

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 212
Author(s):  
Noemí Barral ◽  
Raúl Husillos ◽  
Elena Castillo ◽  
Manuel Cánovas ◽  
Elizabeth J. Lam ◽  
...  
Keyword(s):  
Human Consumption ◽  
Business Opportunity ◽  
Manganese Zinc ◽  
Quality Of Water ◽  
New Business ◽  
Volumetric Quantification ◽  
Zinc Mine ◽  
Iron Manganese

This study deals with the potential use of water stored in a lake formed by Reocín’s old zinc mine, which has become the second most important reservoir in Cantabria, with a flow of 1300 L s−1. The methodology used is based on the hydrogeological and hydrochemical characterization of the area studied. A total of 16 piezometers were installed to monitor the amount and quality of water. Results obtained show a pH close to 8 and iron, manganese, zinc, and sulphate concentrations lower than 0.05 mg L−1, 0.05 mg L−1, 1.063 mg L−1, and 1305.5 mg L−1, respectively. The volume of the water stored in the lake amounts to 34 hm3. Measurements show that Fe, Mn, and Zn concentrations are below the limits acceptable for human consumption, according to the Spanish 0.2, 0.05, and 5.0 mg L−1 standards, respectively, while sulphate greatly exceeds the 250 mg L−1 limit accepted by the norm. Therefore, the water could be apt for human consumption after a treatment appropriate for decreasing the sulphate level by, for example, reverse osmosis, distillation, or ion exchange. Although industrial and energy uses are possible, the lake water could be utilized as a geothermal energy source. The management of the hydric resources generated when a mine is closed could improve the economic and environmental conditions of the zone, with all the benefits it brings about, thus allowing for compensating of the pumping cost that environmental protection entails, creating, at the same time, a new business opportunity for the company that owns the mine.

scholarly journals Assessment of bacteriological quality of drinking water from various sources in Amritsar district of northern India

2015 ◽  
Vol 9 (08) ◽  
pp. 844-848 ◽  
Author(s):  
Sita Malhotra ◽  
Shailpreet K Sidhu ◽  
Pushpa Devi
Keyword(s):  
Drinking Water ◽  
Human Consumption ◽  
Human Right ◽  
Safe Water ◽  
Bacteriological Quality ◽  
Northern India ◽  
Quality Of Water ◽  
The Government ◽  
High Level

Introduction: Safe water is a precondition for health and development and is a basic human right, yet it is still denied to hundreds of millions of people throughout the developing world. Water-related diseases caused by insufficient safe water supplies, coupled with poor sanitation and hygiene, cause 3.4 million deaths a year, mostly in children. Methodology: The present study was conducted on 1,317 drinking water samples from various water sources in Amritsar district in northern India. All the samples were analyzed to assess bacteriological quality of water for presumptive coliform count by the multiple tube test. Results: A total of 42.9% (565/1,317) samples from various sources were found to be unfit for human consumption. Of the total 565 unsatisfactory samples, 253 were from submersible pumps, 197 were from taps of piped supply (domestic/public), 79 were from hand pumps, and 36 were from various other sources A significantly high level of contamination was observed in samples collected from submersible pumps (47.6%) and water tanks (47.3%), as these sources of water are more exposed and liable to contamination. Conclusions: Despite continuous efforts by the government, civil society, and the international community, over a billion people still do not have access to improved water resources. Bacteriological assessment of all sources of drinking should be planned and conducted on regular basis to prevent waterborne dissemination of diseases.

The economic value of basin protection to improve the quality and reliability of potable water supply: the case of Loja, Ecuador

Water Policy ◽  
2011 ◽  
Vol 14 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Samuel D. Zapata ◽  
Holger M. Benavides ◽  
Carlos E. Carpio ◽  
David B. Willis
Keyword(s):  
Water Supply ◽  
Potable Water ◽  
Economic Value ◽  
Human Consumption ◽  
Water Users ◽  
Quality Of Water ◽  
Potable Water Supply ◽  
Quality And Reliability ◽  
The Individual

The objective of this study was to estimate the economic value that people living in Loja, Ecuador, place on the protection of two basins when the protection is designed to improve both the quality and reliability of the water supply for human consumption by urban residents. Empirical results indicate that households have an average willingness to pay (WTP) of $5.80 per month to preserve the basins. The main variables affecting WTP are current monthly water cost, perception about the fairness of the existing water price, the number of hours that service is available, and the gender of the individual interviewed. The results of this study, and the later implementation by the Loja City Municipality of a basin protection project funded through a fee on water users, provide evidence that households at all income levels strongly support and are willing to pay for a project that has the potential to improve the quality of water services and protect the environment.

Chemometrics to evaluate the quality of water sources for human consumption

2006 ◽  
Vol 156 (3-4) ◽  
pp. 315-320 ◽  
Author(s):  
Pavlina Simeonova ◽  
Vasil Simeonov
Keyword(s):  
Water Sources ◽  
Human Consumption ◽  
Quality Of Water
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