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Sewage is liquid waste from households and retail areas that contains sanitary waste (Feces and urine), soaps, food scraps, water, cooking wastes etc.
It is gathered and piped to sewage treatment plants. Depending on the complexity of the plant the treatment consists of:
* Primary treatment: "De-lumping" the sewage and allowing the fluids to sit in lagoons for a period of time before discharge. Removed solids are disposed of to land.
* Secondary Treatment: "Delumping" the sewage. Allowing the sewage to be mixed with bacteria in aeration basins which remove the dissolved organics. Removing the bacteria and discharging the treated water. Removed solids are disposed of to the land or anaerobically digested to generate methane. * Tertiary Treatment: The same as Secondary Treatment but the effluent is filtered and disinfected before discharge Storm water can also be considered as sewage. In many cases it has as many contaminants as sanitary sewage. I is generally simply settled prior to discharge to allow solids to settle out and oils to float to the top for removal
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What are the major types of sewage?
treated and untreated sewage
What percentage of sewage is treated in north America?
45
What is the chlorine limit in sewage treated water?
0.2ppm
What has the author A Feigin written?
A. Feigin has written: 'Irrigation with treated sewage effluent' -- subject(s): Sewage irrigation
Why are some waste products treated at the dye house before entering the sewage works from a textile factory?
Some waste products are treated at a dye house first because they contain colourings and chemicals that cannot be treated at an ordinary sewage works.
What is Difference between treated sewage and untreated sewage?
Untreated sewage is waate product from factorries, nuclear facillities and untreated human waste. This waste is highly dangerous as it contains bacteria, virus, etc... This waste if mixed with river water or water system can cause large damage not just to human but aquatic life aswell. Treated sewage is sewage which is filtered and treated with chlorines and other chemical, after the process the water is ready to be mixed with river, etc. This water is even ready to drink.
Where does bathtub water go after it enters the drain?
If you do not have mains sewage it will go into a local septic tank on the property or near by. Where it will be treated an then discharged into a soak away. If you have mains sewage then it goes into the sewer pipes and can either flow out into a river or the sea, or more likely it will go to a sewage treatment works where it will be treated and cleaned. From there it can either be discharged into a river or sea or it might be treated and recycled.
How natural ecosystems provide an array of basic processes that affect humans?
C. Treated sewage is less damaging to the environment than untreated sewage
Is sewage reused as drinking water?
All water we drink and produce as sewage is part of the water cycle. Water is taken from rivers and lakes and treated to drinking water standard. Wastewater then goes down the sewers to a wastewater treatment plant where it is treated to clean it and then put back into rivers........so you're not directly drinking sewage!
What are the types of sewage treatment plant?
There are basically two types of sewage treatment plants 1. Chemically treated - where chemicals are added to break down the effluents and disinfect it 2. Biologically treated - the effluent is broken down with the help of aerobic bacteria
What happens after the water goes down the drain from the toilet?
That depends on how your sewage is treated, it could go into a septic tank in your garden or it could go into the public sewer and on to a sewage treatment works (sewage farm). In both cases raw sewage is prevented from discharge directly into the environment and the sewage is retained until natural processes have converted it into water that is safe to discharge.
What gets discharged into the manawatu river every day?
78,000 cubic litres of treated human sewage.
