More than a billion people in the developing world lack safe drinking water – an amenity those in the developed world take for granted. Nearly three billion people live without access to adequate sanitation systems necessary for reducing exposure to water-related diseases. The failure of the international aid community, nations, and local organizations to satisfy these basic human needs has led to substantial, unnecessary, and preventable human suffering. This paper argues that access to a basic water requirement is a fundamental human right implicitly and explicitly supported by international law, declarations, and State practice. Governments, international aid agencies, non-governmental organizations, and local communities should work to provide all humans with a basic water requirement and to guarantee that water as a human right. By acknowledging a human right to water and expressing the willingness to meet this right for those currently deprived of it, the water community would have a useful tool for addressing one of the most fundamental failures of 20th century development.
Brackish Water as a Resource
There’s a great deal of talk and debate about the value of treating brackish water, or water that is more saline than fresh water, but not quite as saline as seawater. Brackish water can result from the mixing of seawater with fresh water, as in surface waters such as estuaries or other watery ecosystems, or it can occur underground in aquifers. Salinity Levels Although these definitions may seem vague, there are some precise definitions for salty waters. These vary based on the concentration of salt in...
Dissolved Solids and Water Purification
To make drinking water palatable, the level of dissolved substances (TDS) can’t be too high, but it also can’t be too low Water quality metrics are needed to ensure that surface and groundwater – common sources of water for human consumption – are free from contaminants and pollutants. The level of dissolved solids, also commonly referred to as total dissolved solids (TDS), is a way of measuring the level of organic and inorganic substances in water. This measure refers to any type of...
Reasons You Should Invest in an Arsenic Water Treatment System
In many areas of the U.S., the element arsenic makes its way into the water supply. This element can have adverse health effects. Although it’s rare that it shows up in large enough concentrations to be fatal, it can still cause problems and should be eliminated. Health Effects Many studies have been done to determine the specific effects of consuming water tainted by arsenic. One of the most common health ailments is lesions. Regularly consuming water with traces of arsenic can cause skin problems. This...
How to Choose the Right Biological Water Filtration System
There are many different biological treatments of water available. They’re all similar in a number of ways, but share key differences in the specific ways the water is filtered. This article is an informative breakdown of all the different biological water treatment systems that are available and how they work. Slow Sand Filtration This system supports the growth and maintenance of microorganisms that eventually become its primary filtering mechanism. Its layers work to get rid of any potential contaminants...
Coagulation and flocculation in the Helsinki drinking water treatment plant
The raw water for Finland’s capital Helsinki is pumped from Lake Päijänne, located approximately 120 km away, via a tunnel to two water treatment plants, where it is treated and purified. This secures sufficient drinking water of excellent quality for around one million people. In the drinking water treatment plant in Vanhakaupunki 18 HYPERCLASSIC® Evolution7 mixers and three CYBERPITCH® mixers made by INVENT have been in operation since July 2017. The current plant was reconstructed in...