Waste-water Recycling (English)

From a last a few decades we have experienced acute water shortage in different parts of world.Treating waste water to put it back into public use can help against water crises around the world, according to united nations, though the practice has to overcome the "yuck' factor among the public. Wastewater that has been through a treatment plant is typically discharged into rivers.                        But there is push to tap recycled water-also known as water 'reuse,'--in order to ease pressure on source of freshwater, pollution and climate change.In fact, water reuse for sure willi just increase and increase worldwide, because there is no other option.                   Namibia's capital, windhoek, has been a pioneer, transforming wastewater into portable water since the 1960,while Singapore has also developed a much vaunted recycling system.                         Turning recycled water -also known as reclaimed water -into  something you can drink is not the main purpose of technology. Reclaimed water is used for irrigation in agriculture, which consumes two thirds of freshwater abstractions around the world. Reclaimed water can also be used for industries, to clean streets or cool power stations. Untapped resources :-There are two ways to turn waste-water into potable water.               It can be treated and then blended with freshwater in a surface reservoir or groundwater aquifer before undergoing additional treatment and being distributed. But the other rarer methods does not use such environmental  buffers, as wastewater is purified and then sent directly to a drinking water distribution system. Water 'reuse ' is definitely part of the solution. It's a way to increase our supply.  If you can reuse the water several times, then you don't have to extract it from source. Recycling waste water is less expensive and uses up less energy than desalinating sea water, which is considered another solution against water scarcity.           Astronaut drink:-The water will go through several stages of filtration and dis -infection, before being discharged in to reservoir. Everyone now understands that we must be frugal with groundwater.we have to restrict water use due to drought like conditions in various parts of the world. It is five times more expensive to treat  waste than water from a river or a lake because it is much dirtier.                                 More than 80 percent of the world's waste water is dumped in the environment without treatment, especially in poor countries, according to a2017UN report that called waste the"untapped resource"Though wastewater recycling is costly process, we have one way to reduce costs would be to take sludge from the treated water to obtain biogas or extract nutrients such as nitrogen and phosphorus which can be converted into fertiliser. Astronaut on the international Space station drink water that was recovered from the crew's sweat and urine. No astronaut has ever gotten sick from the reuse of water.