Sewage Treatment and Disposal
The Use of Water In Our Cities
Water supplied to households is used for many purposes, other than drinking and food preparation, notably bathing and showering, toilet flushing and the washing of utensils, dishes and clothes. Except where main drainage is not installed, the used water gravitates to the local sewer and becomes ‘sewage’.
Domestic waste water will contain both solid and dissolved pollutants including fecal matter, paper, urine, sanitary items, food residues and a variety of other contaminants. The sewer network will usually also receive waste waters from office and commercial properties and from industrial premises. Rainwater from roofs and roads may also drain into the sewer network.
Preventing Disease with Clean Water
- The impact of clean water technologies on public health in the U.S is estimated to have had a rate of return of 23 to 1 for investments in water filtration and chlorination during the first half of the 20th century.
- Community water fluoridation prevents tooth decay safely and effectively. Water fluoridation has been named one of 10 great public health achievements of the 20th century.
Plants Near Your City
Our government is required to have all water that we use, treated for our safety. Every time you flush, drain or discard through pipes it is going to be treated.
Clean Water is So Important
Fresh water is one of our most vital resources, and when our water is polluted it is not only devastating to the environment, but also to human health. The US relies on public water systems to treat and deliver just over 44 billion gallons of clean water each day to our homes, schools and businesses. Before it is delivered to our homes it is treated to remove chemicals, particulates (e.g., soot and silt) and bacteria. This clean, potable water is then used for cooking, drinking, cleaning, bathing, watering our lawns.
The process to getting clean water involves 5 removing all the large waste particles. Then the smaller particles, and then the extensive purification process. The purification usually involves chlorine.