Question

discuss the process involved in tretment of sewage water
​

Answer 1

Explanation:

Treatment Steps

Step 1: Screening and Pumping. ...

Step 2: Grit Removal. ...

Step 3: Primary Settling. ...

Step 4: Aeration / Activated Sludge. ...

Step 5: Secondary Settling. ...

Step 6: Filtration. ...

Step 7: Disinfection. ...

Step 8: Oxygen Uptake.

Answer 2

Explanation:

• Sewage treatment may also be referred to as wastewater treatment.
• However, the latter is a broader term which can also refer to industrial wastewater.
• For most cities, the sewer system will also carry a proportion of industrial effluent to the sewage treatment plant which has usually received pre-treatment at the factories themselves to reduce the pollutant load.
• If the sewer system is a combined sewer then it will also carry urban runoff (stormwater) to the sewage treatment plant.
• Sewage water can travel towards treatment plants via piping and in a flow aided by gravity and pumps.
• The first part of filtration of sewage typically includes a bar screen to filter solids and large objects which are then collected in dumpsters and disposed of in landfills.
• Fat and grease is also removed before the primary treatment of sewage.