WASTE MANAGEMENT QUIZ 3

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Question 1:

Which of the following is the first operation in wastewater treatment to remove most of the bigger and longer visible objects?

Screening

Grit channels

Sedimentation

Shredders

In stabilization process, toxic component transform to a non-toxic component with the help of

Chemical process

Physical process

Biological process

Physico-chemical process

Which of the following is the ex-situ bioremediation method?

1,2,3,4

2,3,4

1,3,4

1,2,3

The color code of plastic bag for disposing of needles –

Blue

Translucent

Red

Yellow

Which of the following is not affected or not changed during primary treatment?

Both 1 and 3

Both 1 and 2

Both 1 and 4

Both 2 and 4