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Watch this brief, video picture of practice that captures everyday classroom life and provides real-life examples of how students learn and think about freshwater topics. Students review each step of the water-treatment process used to make water potable and analyze the order in which the steps occur.
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Text Text on this page is printable and can be used according to our Terms of Service. Interactives Any interactives on this page can only be played while you are visiting our website. Related Resources. If Your Water Ran Out! View Video. The last and final step is the chlorination.
Chlorine is added to the water to protect against any bacteria or other pollutants that may still be in the water. At all stages in this process, samples of the water are taken and tested to assess whether the procedure is effective and the water is getting cleaned in a proper manner.
The natural cleaning of water takes place as it moves from the ground, lakes, oceans and plants and gets transformed into clouds. As water travels through the ground, it gets filtered in a natural way, much like how it is in the filtration process where it is passed through sand.
Water also gets naturally purified as it flows through some kinds of ecosystems, especially in the wetlands. Dangerous chemicals, bacteria and other pollutants can be removed from water by a new technology known as nanotechnology. Nanotechnology is said to be much more effective and less expensive than the conventional methods of water purification. A team at the Ian Wark Research Institute at the University of South Australia has suggested that nanotechnology could solve the global problem of safe drinking water.
Active particles of silica called Surface Engineered Silica SES have been tested to show that they could remove pathogens, viruses and biological molecules effectively. This innovative new technology for cleaning water could help avert diseases and provide safe drinking water for millions of people all over the world.
Paul Favors is a full-time SEO Consultant and freelance writer who operates a private web consulting firm. Paul holds a B.
The Disadvantages of Desalination. More than craft breweries from across the country, including Brooklyn Brewery and New Belgium Brewing Company, are joining NRDC to explain why clean water is essential for great-tasting beer. Manicured turf grass lawns cover up to 50 million acres of land in America. But a new, no-mow movement is challenging this conformity—and helping the environment. Our rivers, reservoirs, lakes, and seas are drowning in chemicals, waste, plastic, and other pollutants.
Caring for your pet while caring for the planet is about more than buying recycled toys and organic dog food. The California garbage dump project would have desecrated sacred tribal lands, destroyed vital wildlife habitat, and put local waters at risk. For drinking water, flood control, climate defense, habitat protection, fishing, swimming, and, of course, craft beer.
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