Views:259 Author:Site Editor Publish Time: 2021-04-19 Origin:Site
People often cringe at the thought of water that was once wastewater being treated and used as drinking water. So how about drinking a refreshing cup of reclaimed wastewater when you are thirsty? No, we're kidding. You probably don't drink much reclaimed wastewater. Reclaimed wastewater has many uses, with more promise of usage in the future.
Reclaimed water is recycled from wastewater generated by homes and businesses and treated for non-potable uses. Though reclaimed water is not used in the drinking water supply, it meets many of the criteria for drinking water. This water is clear, has no noticeable odor, and has light-yellow color.
Reclaimed water is produced in a waste water treatment plant. At sewage treatment plants, domestic wastewater is collected from homes, schools, offices, hospitals, commercial and industrial facilities, and then processed in several processes to prepare the water for reuse or discharge into the environment. The treatment process is designed to ensure that the reclaimed water is safe and reliable for its intended use.
The treatment processes includes:
Primary treatment-The sewage is temporarily stored in a pool, so solid waste can settle to the bottom and be removed.
Secondary treatment-After the solids are removed by the primary treatment, the remaining water is further treated to remove or degrade all remaining wastes still suspended in the water.
Tertiary treatment-the final process involves the further removal of nutrients and other pollutants, which cannot be completely removed by the second stage treatment
Approved uses for reclaimed water:
1) Irrigation on golf courses, parks, common areas in homeowner communities, highway medians and other landscaped areas.
2) Aesthetic purposes, such as fountains and decorative ponds.
3) Agricultural uses, such as irrigation on pasture lands and irrigation at nurseries.
4) Wetlands creation, restoration and enhancement.
5) Industrial uses, including plant wash down, processing water and cooling water.
Reclaimed water may not be used for:
1) Drinking water for human or pets.
2) Cooking, bathing, toilet flushing or other household use.
3) Filling swimming pools, hot tubs or wading pools.
4) Connection to any other potable water pipes, wastewater pipes, or reclaimed water pipes that would return reclaimed water back to the system.
Signs are required to identify areas that use reclaimed water. All reclaimed water systems are easily identified by the purple pipes and valve box covers seen throughout the landscape. There are restrictions on the use of reclaimed water, like watering at night when there is less chance of human contact as well as controlling run-off into the streets and preventing standing water.
In 2014, 1.7 billion gallons of reclaimed water was used in place of drinking water as a source for landscape irrigation. Because less drinking water is used on landscapes and in industry, reclaimed water has eased the demand on our groundwater and surface water resources. In the peak demand period in summer, reclaimed water saves more than 17 million gallons of drinking water each day!
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