Drinking Water Analysis Articles on Environmental XPRT

Drinking Water Analysis Guide

Public Water Systems (PWS), regulated by the United States Environmental Protection Agency (USEPA), provide drinking water to 90% of Americans. Water systems and laboratories testing drinking water for Safe Drinking Water Act (SDWA) compliance must be certified and must use USEPA approved methods, which are developed by the USEPA, other government agencies, universities, consensus method ...

Aug. 3, 2015

By Shimadzu Scientific Instruments Inc

ICP Analysis of Multiple Elements in Drinking Water

The amount of water typically consumed by an adult is said to be about two liters per day, and nearly all of this is tap water or mineral water, generally referred to as "drinking water." Conducting safety inspections are the responsibility of each country according to their respective regulations. Typically, there are many target elements included in the test, such as sodium (Na), calcium ...

May 1, 2015

By Shimadzu Scientific Instruments Inc

GC-MS/MS Analysis of Pesticides in Drinking Water

According to Japan’s list of drinking water quality control substances, pesticides are included as supplemental items subject to analysis. Designed to complement the standards, the Ministry of Health, Labour and Welfare encourages water utilities to monitor pesticide levels and achieve specified targets. Among the 102 listed pesticides, 84 are simultaneously analyzed using solid-phase ...

Oct. 2, 2014

By Shimadzu Scientific Instruments Inc

Drinking water quality monitoring using trend analysis

One of the common quality parameters for drinking water is residual aluminium. High doses of residual aluminium in drinking water or water used in the food industry have been proved to be at least a minor health risk or even to increase the risk of more serious health effects, and cause economic losses to the water treatment plant. In this study, the trend index is developed from scaled ...

Jun. 18, 2014

By IWA Publishing

Spatial analysis of rural drinking water supply in China

A spatial autocorrelation analysis method was employed to process the spatial change of rural water supply over the past 19 years in the People's Republic of China. Statistical analyses indicate great achievements in rural water supply construction. Two main indices describing rural drinking water supply status, the Rural Popularization Rate of Tap Water and the Rural Popularization Rate ...

May 21, 2015

By IWA Publishing

Bromate analysis analysis of bromate in drinking water by hplc and post-column derivatization

Bromate is a disinfection by-product that is formed when Ozone reacts with naturally occurring Bromide in drinking water. Bromate is a known animal carcinogen and has also been listed as a group 2B toxin: probable human carcinogen. The U.S. EPA Method 300.1 employs conductivity as the means of detection which works well for most anions. However, the method is nonspecific and coeluting ...

Jun. 10, 2010

By Pickering Laboratories, Inc.

Glyphosate and AMPA in drinking water

Carcinogenic or not? The broad-spectrum herbicide glyphosate is used all over the world in agriculture. Alongside farming, the chemical is also used for weed-killing in domestic gardens and in public and private spaces kept free from «vegetal invasion», such as railway tracks. Glyphosate has been used since the 1970s in pesticides and was hitherto thought to be harmless at ...

Sep. 28, 2016

By Metrohm AG

Biocorrosion in drinking water pipes

Copper is widely used in drinking water distribution systems due to its relatively low cost and favorable mechanical properties. However, copper corrosion may generate copper concentrations exceeding the thresholds prescribed by international drinking water standards. In-situ measurements performed in an actual system found that the copper mass released under flowing water conditions (pipe ...

Feb. 18, 2016

By IWA Publishing

UN-Water Global Analysis and Assessment of Sanitation and Drinking Water 2012

The UN-Water Global Analysis and Assessment of Sanitation and Drinking Water report is produced every two years by the World Health Organization (WHO) on behalf of UN-Water. It provides a global update on the policy frameworks, institutional arrangements, human resource base, and international and national finance streams in support of sanitation and drinking water. It is a substantive input into ...

Jan. 20, 2015

By IWA Publishing

UN-Water Global Analysis and Assessment of Sanitation and Drinking Water 2014

The UN-Water Global Analysis and Assessment of Sanitation and Drinking Water report is produced by the World Health Organization (WHO) on behalf of UN-Water. It provides a global update on the policy frameworks, institutional arrangements, human resource base, and international and national finance streams in support of sanitation and drinking water. It is a substantive input into the activities ...

Jan. 20, 2015

By IWA Publishing

Multicriteria decision analysis for the selection of a small drinking water treatment system

The selection of a small drinking water treatment system for a hydro-electrical plant is addressed within a multicriteria and participatory decision analysis process. As a first step, based on problem constraints, we identified and retained three water treatment systems alternatives. In close collaboration with the stakeholders, we then defined and obtained weights for criteria that take into ...

Jun. 1, 2010

By IWA Publishing

Chemical analysis of drinking water from some communities in the Brong Ahafo region

This study consisted of the determination of the trace metals and some physiochemical properties in drinking water samples from the Brong Ahafo region of the Republic of Ghana, where drinking water samples are not treated before it is consumed. The purpose was to ascertain the quality of water from these sources. Samples were taken from fifteen sampling points and analyzed for the following ...

Mar. 20, 2007

By Center for Environment and Energy Research & Studies (CEERS)

Why is Chemical Oxygen Demand (COD) a useful parameter for drinking water analysis?

Ask the Expert: COD Analysis for Drinking Water Question: Why is Chemical Oxygen Demand (COD) a useful parameter for drinking water analysis? Answer: At very basic level Chemical Oxygen ...

May 8, 2015

By Camlab Limited

Fouling analysis of polysulfone ultrafiltration membranes used for drinking water treatment

Natural organic matter (NOM) plays a significant role in the fouling of ultrafiltration membranes in drinking water treatment processes. For a better understanding of the interaction between fractional components of NOM and polysulfone (PS) ultrafiltration membranes used for drinking water treatment, fouling and especially the physically irreversible fouling of natural organic matter were ...

Dec. 1, 2011

By IWA Publishing

TOC Analysis: The Best Tool in a Drinking Water Facility`s Toolbox

Total organic carbon (TOC) has become an important water quality analysis tool for drinking water plants in recent years due to its link to disinfection byproducts (DBPs). TOC alone is not harmful, but upon its reaction with a disinfectant can produce harmful byproducts. However, TOC’s relevance in drinking water ...

Jul. 6, 2010

By GE Analytical Instruments

Life cycle analysis of two Hungarian drinking water arsenic removal technologies

Determining a technology's merit as a solution to Hungarian drinking water arsenic contamination goes beyond technical concerns: environmental and economic aspects also play very important roles. In an effort to address the current arsenic drinking water requirements in Hungary, life cycle analysis (LCA) methodology was applied on two example arsenic removal technologies, ...

Feb. 18, 2014

By IWA Publishing

Thermal energy from drinking water and cost benefit analysis for an entire city

The municipality of Almere is planning to develop a new carbon neutral neighbourhood. The area is located close to a treated water storage facility. By extracting enough thermal energy to provide 900 homes with energy for space heating and heating tap water, the temperature of the treated water is lowered by 1.16 °C. This could lead to an increase in the energy required to heat water for ...

Feb. 18, 2013

By IWA Publishing

Analysis of trace metals in drinking water with the optima 7000 DV ICP-OES

With the development of mining, smelting and other industrial activities, heavy metals are increasingly being found in freshwater sources which can pose severe threats to human and environmental health. Pollution by heavy metals (such as Cd, Pb, etc.) not only affects the productivity of crops, but also the quality of the atmosphere as well as water bodies and threatens the health and life of ...

Oct. 28, 2011

By PerkinElmer, Inc.

Analysis of physico-chemical and bacteriological quality of drinking water in Mafikeng, South Africa

Mafikeng, the capital of the North West Province, receives water from two sources, namely the Molopo eye and the Modimola dam. Once treated, the potable water is mixed and supplied to the city via distribution systems. This study was designed to assess the quality of drinking water in Mafikeng and also to determine whether the water from the two sources has an impact on the mixed water ...

Jun. 1, 2015

By IWA Publishing

Early warning of changing drinking water quality by trend analysis

Monitoring and control of water treatment plants play an essential role in ensuring high quality drinking water and avoiding health-related problems or economic losses. The most common quality variables, which can be used also for assessing the efficiency of the water treatment process, are turbidity and residual levels of coagulation and disinfection chemicals. In the present study, the trend ...

Feb. 10, 2016

By IWA Publishing

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