WHO water standard Articles
-
Planning and installation of a drinking water treatment in Gunungkidul, Java, Indonesia
The district of Gunungkidul on Java Island in Indonesia is affected by an acute water shortage, especially during dry seasons. Because of its karst topography, rainfall percolates rapidly into underground caves, limiting surface storage. As a consequence, potential sources of water to supply the local population are rainwater and water derived from underground caves. However, water availability ...
-
Bacteriological assessment of aquifer storage and recovery (ASR) water in southwest coastal Bangladesh
Safe drinking water is scarce in southwest coastal Bangladesh. Harvested rainwater and rain-fed pond water are the main sources of drinking water for people living in this area. Both government and non-government organizations are promoting aquifer storage and recovery (ASR) schemes to provide safe drinking water for this population. This study assessed the bacteriological quality of both ...
-
Humanitarian Kiosk Water Treatment- Haiti - Case Study
Challenge A leading provider of safe drinking water to Haiti's under served communities through water kiosks had several water quality issues to deal with upon implementing their pilot program of 10 water kiosks. There was discussion of using surface water or deep well bore water, however, both were unsuitable for drinking water purposes due to microbiological and mineral contamination. ...
-
An assessment of microbiological water quality of six water source categories in north-east Uganda
Target 7C of the Millennium Development Goals is to “halve, by 2015, the proportion of people without sustainable access to safe drinking water and basic sanitation”. However, the corresponding indicator measures the “proportion of population using an improved drinking water source”. This raises the question of whether “safe” and “improved” can be used interchangeably. This paper tests this ...
-
Effect of agro-activities on drinking-water quality in Bangladesh
Fifty-nine samples of drinking water were collected from various locations in Bangladesh to assess the impact of agricultural practices on groundwater quality. The basic groundwater quality parameters, such as pH, total dissolved solids, iron, sodium, chloride, sulfate, fluoride and arsenic were analysed. In addition, the presence of excess fertilizers was monitored by measuring levels of ...
-
Seawater reverse osmosis system for supplying potable water for airport in saudi arabia
The Background Saudi Arabia General Authority of Civil Aviation (GACA) is responsible for constructing, managing, operating, and maintaining airports and air navigation infrastructure in Saudi Arabia. The city lacked adequate water production and distribution systems around the airport. GACA’s objective was to increase water production to meet projected growth in demand, and wanted to ...
-
Bacteriological and physico-chemical quality assessment of household drinking water in Ado-Ekiti, Nigeria
An investigation on the bacteriological and physico-chemical properties of stored household drinking water in Ado-Ekiti, Nigeria was carried out between April and October, 2008. The drinking water sources considered for examination were harvested rain water, tap water and well water stored in plastic water pots for 2 to 4 days. The waterborne pathogens in the samples that were isolated were ...
-
Quality and suitability of harvested rainwater for drinking in Bangladesh
Several programs have been undertaken during the last few years to install rooftop rainwater harvesting systems as an alternative drinking water supply source both in the coastal and arsenic affected areas in Bangladesh. In this study, quality of the harvested rainwater used for drinking water supply was assessed. A total of 308 harvested rainwater samples were collected from the different ...
-
Geophysical and physicochemical characterization of organic waste contamination of hydrolithofacies in the coastal dumpsite of Akwa Ibom State, southern Nigeria
Geophysical and physicochemical methods were carried out to examine the effect of leachate on groundwater in a dumpsite location in Akwa Ibom State, Nigeria. This was done to ascertain the level of organic contamination in the wells located in the study area. The analysis of water samples from boreholes close to the dumpsite was done to constrain the interpretation of electrical resistivity ...
-
Blending as the best compliance option for the management of radioactivity in drinking water supplied from the deep sandstone aquifer in Southern Jordan
This paper describes management options and interventions taken by the Government of Jordan to ensure that the quality of drinking water supplied to consumers via the Disi Water Conveyance Project (DWCP) meets Jordanian drinking water standards and WHO guidelines for drinking water quality in respect of their radiological composition. Results from an initial survey of radioactivity present in ...
-
Impact of treated wastewater on groundwater quality in the region of Tiznit (Morocco)
The Tiznit region has an arid to semi-arid climate. Rainfall is scarce and the reuse of wastewater for crop irrigation is common, and consequently groundwater can be contaminated by chemical and biological pollutants. A wastewater treatment plant is constructed with the aim of producing water suitable for reuse in agriculture and reducing groundwater pollution. The aim of this study is to assess ...
-
Treatment and potential reuse of greywater from schools: a pilot study
This study presented performance data on a low cost and easy maintenance pilot system for on-site treatment and reuse of water collected from wash sinks and fountains, as major sources of greywater (GW) at schools. Various treatment options were studied including screening, sand filtration, chlorination, and UV disinfection operated at different flow rates. Results showed that filtration ...
-
Design and operation of a rainwater for drinking (RFD) project in a rural area: case study at Cukhe Elementary School, Vietnam
Since 2014, a well-designed rainwater for drinking (RFD) project has been successfully operating at Cukhe Elementary School, near Hanoi, Vietnam. During that time, daily rainfall data, water consumption, water quality and questionnaires to the community were prepared. Several concerns over the design and operation of RFD projects, such as lack of sufficient rainfall data, water quality ...
-
The comparative study of trihalomethanes in drinking water
Abstract: The purpose of this study was to assess exposure of four trihalomethanes (chloroform, bromodichloromethane, dibromochloromethane and bromoform) in drinking waters of Okinawa Island and Samoa. Trihalomethanes compounds were determined in the drinking water samples that were collected from the selected consumption sites and treatment plants of both Okinawa and Samoa in 2003-2004. The ...
-
Water Infrastructure - Sea Water Desalination - Case Study
Challenge Facing challenges of clean water shortages in Tekoradi, Ghana with the burgeoning oil/gas sector in the area offshore, something had to be done to increase clean water supply to supply the growing needs of both the military base at Tekoradi and the surrounding community. Solution Knowing the water demands were increasing, Genesis Water Technologies was engaged by our partner Best ...
-
Delivering water anywhere, 24/7. Ideal for planned hire, emergencies and disaster
Our Mobile Water Services provide pure water anytime, anywhere, 24 hours a day, 7 days a week. With flow rates from 200 litres/hr to >150 m/hr, our Mobile Water Services are ideal for planned hire, emergency call-outs and disaster recovery. Safeguarding the production of your water treatment plant, our Mobile Water Services provide flexible water services, while reducing your wastewater ...
-
What are MCLs (Maximum Contaminant Levels) in California Water Quality and Drinking Water Standards?
A fantastic resource is available on the environmental standards page of the esdat.net website to search and use environmental standards and guidelines. Environmental Standards are available for air, water and soil for the United States, Canada, Australia, New Zealand, United Kingdom, Holland and from the World Health Organization. EPA Environmental Standards The Environmental Protection Agency ...
-
Millennium Water Supply and Sanitation Program (PEPAM) Project - Senegal - Case Study
Customer / Type of customer Sade Senegal Issue / Need Promote sustainable integrated water resource management, universal access to drinking water and continuity of public service in rural areas. This unique Senegalese development framework (PEPAM) is based on the combined efforts of the State, civil society, local authorities, NGOs, the private sector and development partners. In order to ...
-
City Water International explains The Basics of Water Filtration
The Basics of Water Filtration Most of us know that filtered water is healthier than tap water because of its purity, but how does water filtration work? The basic principle is that filtered water has passed through a filter which removes contaminants through one of several methods, depending on the type of filter. Most water purification systems work in one of three ways by running water ...
-
Large-scale works to address urgent water and sanitation needs - Kurdistan, Iraq - Case Study
Project type Water & wastewater Area served Urban; semi-urban; agricultural Population served 2,700,000 Status Ongoing This project will help address urgent water supply needs driven by the ever expanding population of the Kurdistan region of Iraq. Providing increased drinking water capacity will help to alleviate water shortages across the region, while wastewater treatment works will ...
By Biwater
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you