STUDY OF THE QUALITY OF DRINKING WATER IN TÂRGU LĂPUS, MARAMURES, ROMANIA

2018 ◽  
Vol 32 (2) ◽  
pp. 61-71
Author(s):  
Valeria Mirela Brezoczki ◽  
◽  
Gabriela Maria Filip ◽  
Keyword(s):  
Water Quality ◽  
Distribution System ◽  
Water Distribution ◽  
Raw Water ◽  
Treatment Technology ◽  
Baia Mare ◽  
Domestic Use ◽  
Drinkable Water ◽  
Sanitary Conditions ◽  
Subterranean Water

This paper presents the analysis of quality indicators for two subterranean water sources, Suciu and Râoaia catchments, in Târgu Lapus, which are meant for domestic use. The period during which water quality was monitored covers two months (January and May 2018); during this period the control analyses of water quality were carried out in the laboratory of the Baia Mare Purification Station. The paper contains certain data regarding the need for water and the system for distributing drinkable water to consumers, the description of catchments and the subterranean water treatment technology required for meeting the sanitary conditions for rendering water drinkable, as well as the analysis of physical, chemical and bacteriological indicators obtained, compared to the legislation in force. The analysis of the results obtained highlighted a series of bacteriological indicators/parameters that were exceeded, as well as turbidity and hardness in the raw water from the subterranean catchments. The existence of colonies developed at 37 °C and 22°C in the raw water requires a chemical treatment of this water with the aim of disinfecting it. The parameters of the thus rendered drinkable water match the values accepted through the legislation in force, the water being distributed to consumers through the Drinkable water distribution system in Târgu Lăpuş.

SEQUENTIAL MONITORING OF DRINKING WATER QUALITY IN THE CITY OF BAIA SPRIE, MARAMUREŞ

2020 ◽  
Vol 34 (2) ◽  
pp. 53-63
Author(s):  
Valeria Mirela Brezoczki ◽  
Juhasz Jozsef ◽  
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Distribution System ◽  
Treatment Plant ◽  
Water Sources ◽  
Raw Water ◽  
Treatment Technology ◽  
Baia Mare ◽  
Drinkable Water ◽  
Subterranean Water

This paper presents the analysis of quality indicators for six surface water sources and two subterranean water sources at Baia Sprie, which are meant for domestic use. The period during which water quality was monitored covers three months (January, March and May 2018); during this period the control analyses of water quality were carried out in the laboratory of the Baia Mare Water treatment plant. The analysis of the results obtained highlighted a series of bacteriological indicators/parameters that were exceeded, as well as turbidity and hardness in the raw water from the catchments. The existence of colonies developed at 37°C and 22°C in the water requires a chemical treatment of this raw water with the aim of disinfecting it. The paper contains certain data regarding the need for water and the system for distributing drinkable water to consumers, the description of catchments and the subterranean water treatment technology required for meeting the sanitary conditions for rendering water drinkable, as well as the analysis of physical, chemical and bacteriological indicators obtained, compared to the legislation in force. The parameters of the thus rendered drinkable water match the values accepted through the legislation in force, the water being distributed to consumers through the Drinkable water distribution system in Baia Sprie.

THE QUALITY OF DRINKING WATER IN SIGHETU MARMAŢIEI, MARAMUREŞ, ROMANIA

2017 ◽  
Vol 31 (2) ◽  
pp. 19-25
Author(s):  
Valeria Mirela Brezoczki ◽  
◽  
Gabriela Maria Filip ◽  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Source ◽  
Raw Water ◽  
Water Quality Control ◽  
Baia Mare ◽  
Drinking Water Distribution

This paper presents the analysis of the quality indicator of a subterranean raw water source, captured in Crăciunesti, Sighetu Marmatiei, followed by the description of the technological flow of capturing and chlorinating water with the aim of making it drinkable, and the analysis of the obtained values of the physical, chemical and bacteriological indicators. The period within which water quality was monitored for this paper covers four months (December 2016, March, April and May 2017). Within this period the analyses regarding water quality control were carried out by the laboratory of the Water Treatment Baia Mare. The analysis of the obtained results highlighted a series of problems regarding the existence of certain indicators/parameters with values above the legally admissible threshold with regard to water quality. The manganese found in raw water exceeds the admissible threshold by 160%, in December 2016, and by 120% in March 2017, but it is within limits during the months of April and May. The occurrence of colonies developed at 37 °C and 22°C in the raw water requires chemical treatment of the raw water aimed at disinfecting it. The parameters of drinking water correspond to the values admissible through the laws in force, the water being distributed to the consumers through the Drinking water distribution system in Sighetu Marmatiei.

STUDY ON THE VALUE VARIATION OF SOME QUALITATIVE PARAMETERS OF DRINKING WATER

2020 ◽  
Vol 34 (2) ◽  
pp. 75-87
Author(s):  
Valeria Mirela Brezoczki ◽  
◽  
Gabriela Maria Filip ◽  
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Raw Water ◽  
Physical Chemical ◽  
Baia Mare ◽  
Drinking Water Distribution ◽  
Bacteriological Parameters

The study presents the variations of the physical, chemical, microbiological and bacteriological parameters for water provided from two water resources intended for potabilisation, for use in domestic consumption and comparing the results with the legislation in force regarding the quality of drinking water. The two water resources intended for potabilisation are represented by the groundwater from the Capture of Crăciunesti (Tisa River) from Sighetu Marmaţiei and the second source of water is represented by the Firiza Dam, Baia Mare. For both water resources, the present paper presents the technological processes of treatment in order to obtain potable water, which is then distributed to the population through the drinking water distribution system. The study highlights the situation of the drinking water distribution system to the consumers in the 3 areas, the description of the catchments and the treatment technologies of the different water resources (surface water and groundwater) in order to fulfill the sanitary requirements for drinking water, as well as the results of the analyzes for the values of the physical, chemical, microbiological and bacteriological parameters obtained. The analysis of the results revealed value changes at the microbiological and bacteriological parameters only in the raw water, increased values of the turbidity in the raw water from the Firiza Dam, Baia Mare and increased values of the hardness parameter in the water from the underground resource from Sighetu Marmaţiei.

scholarly journals DRINKING WATER QUALITY IN DISTRIBUTION SYSTEMS OF SURFACE AND GROUND WATERWORKS IN FINLAND

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Jenni Meirami Ikonena ◽  
Anna-Maria Hokajärvi ◽  
Jatta Heikkinen ◽  
Tarja Pitkänen ◽  
Robert Ciszek ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Distribution System ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Source ◽  
Bulk Water ◽  
Available Phosphorus ◽  
Raw Water ◽  
Drinking Water Distribution Systems

Physico-chemical and microbiological water quality in the drinking water distribution systems (DWDSs) of five waterworks in Finland with different raw water sources and treatment processes was explored. Water quality was monitored during four seasons with on-line equipment and bulk water samples were analysed in laboratory. Seasonal changes in the water quality were more evident in DWDSs of surface waterworks compared to the ground waterworks and artificially recharging ground waterworks (AGR). Between seasons, temperature changed significantly in every sys-tem but pH and EC changed only in one AGR system. Seasonal change was seen also in the absorbance values of all sys-tems. The concentration of microbially available phosphorus (MAP, μg PO₄-P/l) was the highest in drinking water origi-nating from the waterworks supplying groundwater. Total assimilable organic carbon (AOC, μg AOC-C/l) concentrations were significantly different between the DWDSs other than between the two AGR systems. This study reports differences in the water quality between surface and ground waterworks using a wide set of parameters commonly used for monitor-ing. The results confirm that every distribution system is unique, and the water quality is affected by environmental fac-tors, raw water source, treatment methods and disinfection.

Suspended particles in the drinking water of two distribution systems

2001 ◽  
Vol 1 (4) ◽  
pp. 237-245 ◽  
Author(s):  
V. Gauthier ◽  
B. Barbeau ◽  
R. Millette ◽  
J.-C. Block ◽  
M. Prévost
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Organic Matter ◽  
Distribution System ◽  
Distribution Systems ◽  
Suspended Solids ◽  
Suspended Particles ◽  
Raw Water ◽  
Remote Locations ◽  
Dissolved Matter

The concentrations of suspended particles were measured in the drinking water of two distribution systems, and the nature of these particles documented. The concentrations of particulate matter were invariably found to be small (maximum 350 μg/L). They are globally in the very low range in comparison with dissolved matter concentrations, which are measured in several hundreds of mg/L. Except during special water quality events, such as turnover of the raw water resource, results show that organic matter represents the most important fraction of suspended solids (from 40 to 76%) in treated and distributed water. Examination of the nature of the particles made it possible to develop several hypotheses about the type of particles penetrating Montreal's distribution system during the turnover period (algae skeleton, clays). These particles were found to have been transported throughout the distribution systems quite easily, and this could result in the accumulation of deposits if their surface charge were ever even slightly destabilised, or if the particles were to penetrate the laminar flow areas that are fairly typical of remote locations in distribution systems.

scholarly journals Certainty Level of Water Delivery of the Required Quality by Water Supply Networks

2019 ◽  
Vol 16 (10) ◽  
pp. 1860 ◽  
Author(s):  
Marian Kwietniewski ◽  
Katarzyna Miszta-Kruk ◽  
Kaja Niewitecka ◽  
Mirosław Sudoł ◽  
Krzysztof Gaska
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Quality Indicators ◽  
Distribution System ◽  
Water Distribution ◽  
Water Delivery ◽  
Supply Networks ◽  
Water Quality Indicators ◽  
Water Supply Networks ◽  
Required Quality

The security of water delivery of the required quality by water supply networks is identified with the concept of reliability. Therefore, a method of reliability evaluation of water distribution of the required quality was developed. The method is based on the probabilistic character of secondary water contamination in the water supply network. Data for the method are taken from monitoring of the water distribution system. The method takes into consideration the number and locations of individual measurement points and the results of the tests of water quality indicators at these points. The sets of measurement points and water quality indicators constitute a matrix research (observation) field in the model. The proposed method was implemented to assess the reliability of a water distribution process with respect to water with the required microbiological quality indicators in a real distribution system.

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