Challenges with Maintaining Potable Water Quality—Designing Large Diameter Water Mains for Demands of Today and Tomorrow

2021 ◽  
Author(s):  
Brandon Gorr ◽  
Cian McDermott ◽  
Joseph Ng
Keyword(s):  
Water Quality ◽  
Potable Water ◽  
Large Diameter ◽  
Water Mains ◽  
Potable Water Quality

scholarly journals Assessing Potable Water Quality and Identifying Areas of Waterborne Diarrheal and Fluorosis Health Risks Using Spatial Interpolation in Peshawar, Pakistan

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2163
Author(s):  
Mahmood Ahmad ◽  
Arshad Jamal ◽  
Xiao-Wei Tang ◽  
Mohammed A. Al-Sughaiyer ◽  
Hassan M. Al-Ahmadi ◽  
...  
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Spatial Distribution ◽  
Water Samples ◽  
Potable Water ◽  
World Health ◽  
Faecal Coliforms ◽  
Entire Study ◽  
Distribution Mapping ◽  
Potable Water Quality

Waterborne diseases have become one of the major public health concerns worldwide. This study is aimed to investigate and develop spatial distribution mapping of the potable water quality parameters in the city of Peshawar, Pakistan. A total of 108 water samples collected across the entire study area were subjected to physio-chemical and biological analyses. Tested parameters included pH, turbidity, temperature, fluoride concentration levels, and bacterial counts (faecal coliforms). Inverse distance weighting (IDW) interpolation in geographic information systems (GIS) was used for spatial analysis. Test results revealed that 48% of water samples had faecal coliforms count (per 100 mL) greater than World Health Organization (WHO) minimum limits, while 31% of samples had fluoride concentrations in excess of the WHO maximum guide values. Spatial distribution mapping was developed for faecal coliforms count and fluoride ion concentration using ArcGIS to highlight the high-risk settlements in the study area. Results showed that around 20% area under faecal coliforms and approximately 33% area based on fluoride concentrations fall under the need for treatment category. The pH and turbidity were found in compliance with WHO desirable limits. The sanitary inspection score significantly depicted that ineffective multi-barrier approaches consequently deteriorated the water quality at the consumer’s end. Findings from the present study shall be useful to policymakers for adopting necessary remedial measures before it severely affects public health.

scholarly journals Potable Water Quality and Membrane Technology

2000 ◽  
Vol 31 (10) ◽  
pp. 563-568 ◽  
Author(s):  
J.S. Taylor ◽  
S.K. Hong
Keyword(s):  
Water Quality ◽  
Potable Water ◽  
Membrane Technology ◽  
Potable Water Quality

scholarly journals Modelling the potable water quality in a distribution network based on the hydraulic conditions

2020 ◽  
Author(s):  
Jani Tomperi
Keyword(s):  
Water Quality ◽  
Distribution System ◽  
Water Distribution ◽  
Potable Water ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Quality Model ◽  
Pipe Surface ◽  
Hydraulic Conditions ◽  
Potable Water Quality

Abstract. Abnormalities in hydraulic conditions inside a water distribution network are strongly related to the deterioration of potable water quality. Leaking pipes and valves, for instance, cause changes in water hydraulic conditions and may allow the entry of microbes to the distribution system. Flow and pressure shocks can detach soft deposits and biofilms from the pipe surface which is shown among others as the elevated concentrations of bacteria, metals and turbidity in water. On that account, monitoring the hydraulic conditions in a distribution network and utilizing this information in developing a predictive water quality model assists providing a sufficient amount of potable water with an appropriate quality for the consumers use. In this paper, the water quality at the end part of the district metered area is modelled based on only the water flow and pressure measurements along the distribution network. The developed model can be utilized in proactive operation as it is able to show the potable water quality hours in advance before it is discovered at the end part of the distribution network.

scholarly journals Water Quality in Cluj-Napoca

2012 ◽  
Vol 69 (2) ◽  
Author(s):  
Antonia Odagiu ◽  
Ioan Gheorghe Oroian ◽  
Tania MIHAIESCU ◽  
Daniela BORDEA ◽  
Sinziana PAULIUC
Keyword(s):  
Water Quality ◽  
Water Content ◽  
Quality Indicators ◽  
Potable Water ◽  
Plant Protection ◽  
City Centre ◽  
Physical And Chemical ◽  
Potable Water Quality

The research in the field of potable water quality is characterized by a series of parameters, which define water content from both physical and chemical point of views. They are mainly represented by: pH, conductivity and turbidimetry The aim of this paper was the monitoring of the potable water quality in Cluj - Napoca municipality, by characterizing the following quality indicators: pH, conductivity and turbidity. The study was realized during two experimental years, 2011, and 2012, and consisted from weekly prelevation of potable water from six points located in main districts of Cluj - Napoca  ( the same in each experimental year ) : Zorilor, Mărăști, Grigorescu, Gheorgheni, Mănăștur, and city centre, and quantification of the pH, conductivity and turbidity in Laboratory of Environmental and Plant Protection of USAMV Cluj -Napoca.. The methods were potentiometry, conductometry, and nefelometry. The results are presented as yearly averages.

Statistical Analysis of Raw and Potable Water Quality from a Preparation Plant, as a Basis to Purpose the Re-schedule of the Physico-Chemical Current Routine Analysis Periodicity

2018 ◽  
Vol 69 (1) ◽  
pp. 214-221
Author(s):  
Danut Gabriel Cozma ◽  
Carmen Luiza Costuleanu ◽  
Ion Sandu ◽  
Doina Lutic
Keyword(s):  
Water Quality ◽  
Potable Water ◽  
Principal Component ◽  
Physico Chemical ◽  
Analysis Scheme ◽  
Using Data ◽  
Physical And Chemical ◽  
Preparation Plant ◽  
Schedule Modification ◽  
Potable Water Quality

The multivariate statistics analysis was used to analyze the correlations between 24 physical and chemical parameters values, for raw and potable water quality characterization, using data collected monthly from a potable water preparation plant during two years, 2015 and 2016. The t-Test (Student) and the Principal Component Analysis were used in order to analyze if there are tight dependences between the analyzed parameters, allowing eventually to purpose the analysis scheme schedule modification.

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