Waste Water Management

What are the settling tanks in the screening process called?

what is the sedimentation tank in the primary treatment called?

• clearer

• purifier

• clarifier

• clrerifire

What is the definition of sludge?

• liquid matter produced by sewage treatment

• solid matter produced by sewage treatment

• sewage treatment plant

• Proper arrangement of drainage

name two alternate methods for sewage disposal.

• vermicomposting toilet

• septic tank

• sewage management

• sewage treatment

Name two inorganic impurities present in sewage.

• Vegetable peels

• Plastic

• Metal

• Grass

Waste water generated from paints and dyes industries contains harmful _________

• Germs

• Chemicals

Tags

NGSS.MS-PS1-3

After the clarification step in wastewater treatment, the solid waste called ______ is sold off and the liquid waste called _____ moves on the be filtered and disinfected

• sewage and dirty water

• sludge and effluent

• effluent and slude

• dirty water and sewage

Examples of on site sewage disposal systems-

• Septic tanks

• Toilet

• Both of them

Process used in water treatment process where water is pushed through screens, sand, gravel and coal to remove organisms and trash

• filtration

• chlorination

• coagulation

• bioreactors

What is the primary purpose of wastewater treatment?

• To remove solid waste

• To disinfect water

• To remove harmful chemicals

• All of the above

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

NGSS.HS-LS2-7