Energy & Green Tech
Texans like to think of their state as the energy capital of the world. But in mid-February 2021, the energy state ran short of energy.
Feb 10, 2023
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Energy & Green Tech
European research is expanding clean-energy options, bolstering the EU's goal to become climate-neural by 2050.
Dec 19, 2022
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Engineering
A team of Johns Hopkins engineers has discovered a method to filter out a class of harmful industrial "forever chemicals" commonly found in the country's drinking water.
Oct 25, 2022
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Engineering
Access to clean drinking water is fundamental to our health and wellbeing, and a universal human right. But almost 200,000 Australians are still forced to use water contaminated with unsafe levels of various chemicals and ...
Aug 25, 2022
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Engineering
Water is the most essential resource for life, for both humans and the crops we consume. Around the world, agriculture accounts for 70% of all freshwater use.
Aug 12, 2022
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Robotics
In a strawberry field surrounded by strawberry fields on the outskirts of Santa Maria, a pair of robots have been picking berries all summer.
Jul 28, 2022
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18
Energy & Green Tech
At plants painted with birds and hedgehogs, hot water from deep underground is being channeled to produce energy and heat for thousands of households in Hungary's third largest city Szeged.
Jul 10, 2022
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Engineering
Dr. Derek Li, Lecturer in Civil and Natural Resources Engineering at the University of Canterbury (UC), has been further developing a unique system pioneered by UC Professor Pedro Lee, that uses soundwaves to locate broken ...
Jun 3, 2022
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5
Engineering
Geothermal systems are becoming an increasingly important source of clean and, above all, baseload-capable energy. But the wells, which can be several thousand meters deep, are risky, and things can sometimes go wrong. Fraunhofer ...
Jan 3, 2022
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Robotics
Removing litter from oceans and seas is a costly and time-consuming process. As part of a European cooperative project, a team at the Technical University of Munich (TUM) is developing a robotic system that uses machine learning ...
Dec 29, 2021
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Tap water (running water) is part of indoor plumbing, which became available in the late 19th century and common in the mid-20th century.
The provision of tap water requires a massive infrastructure of piping, pumps, and water purification works. The direct cost of the tap water alone, however, is a small fraction of that of bottled water, which can cost from 240 to 10,000 times as much for the same amount.
The availability of clean tap water brings major public health benefits. Usually, the same administration that provides tap water is also responsible for the removal and treatment before discharge or reclamation of wastewater.
In many areas, chemicals containing fluoride are added to the tap water in an effort to improve public dental health. This remains a controversial issue in the health, freedoms and rights of the individual. See water fluoridation controversy.
Tap water may contain various types of natural but relatively harmless contaminants such as scaling agents like calcium carbonate in hard water and metal ions such as magnesium and iron, and odoriferous gases such as hydrogen sulfide. Local geological conditions affecting groundwater are determining factors of the presence of these substances in water.
Occasionally, there are health concerns regarding the leakage of dangerous biological or chemical contaminating agents into local water supplies when people are advised by public health officials not to drink the water, and stick to bottled water instead. An example is the recent discovery of potentially hazardous nitrates in the public water supply in Phoenix, Arizona.
This text uses material from Wikipedia, licensed under CC BY-SA
