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The answer depends on exactly what you mean and where you are.
A common meaning is that the main drainage from an area is not separated into surface (basically rain-water drainage) and foul (domestic waste water). In modern housing developments only foul water is treated so surface and foul waters are kept separate.
What else can I help you with?
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.
What happens to the concentration of oxygen in water when the sewage is added?
The concentration of oxygen decrease.
What happens to the concentration of oxygen in the water when the sewage is added?
The concentration of oxygen decrease.
Why is sewage mixed with air?
Sanitary sewage is treated in plants that mix the raw sewage with bacteria to consume the waste materials. The nature of these bacteria is that they need oxygen to live and grow (they are aerobic bacteria). The plant equipment mixes air into the sewage to increase the transfer of oxygen to the water at much higher rates than quiescent conditions. A an added advantage this mixes the bacteria and sewage so that the bacterial population is much higher and the treatment much faster. The "full" bacteria are separated from the clean water which is discharged to surface watercourses.
What is water sewage?
A drainage system for carrying surface water and sewage for disposal.
What happens when drinking water get mixed with sewage?
it would taste pretty bad because the oxygen levels in the water would decrease making it less sterile to drink
What is sewage pollution?
pollution of water sources by anything that can be considered sewage. pollution of water sources by anything that can be considered sewage.
Why is calcium hydroxide added to water during water purification process?
Calcium hydroxide or slaked lime is sometimes added to form a fluffy charged solid that aids in the removal of smaller particles from water. This is used mainly in sewage water preparation.
System of discharge of waste water from a house to public sewer?
Sewage from all points of source in a house will be collected in a single ground level collection pit within the house premises which will be connected to the public sewer by pipes laid underground to convey the sewage. A silt trap with a silt bucket will also be installed in the system to remove the silt carried by sewage and accumulated in the pit before the sewage flow into the house service connection pipes to prevent clogging of pipes.
What activated process is used to separate sewage?
The activated sludge process is commonly used to treat sewage. In this process, microorganisms are added to break down organic matter in the sewage, forming a sludge that settles out, leaving cleaner water behind. The cleaned water is then further treated before being discharged.
What are items connected to the sewerage system in a typical house?
This does vary with country. In regions with reticulated sewage, rainwater will usually be excluded from the sewage system. In regions short of water, 'grey water' may be collected for lawn watering and gardening. Grey water is that from bath, handbasin and shower. in this 'colour spectrum', white water is potable, grey water is as above, and black water is sewage from toilet (water closet) and kitchen waste.
What type sewage water is released from railway station?
what type of sewage water is released from railway station
