Water Pollution

Water Pollution
Which bacteria flourish in presences of free dissolved oxygen in sewage?
Aerobic Bacteria
Anaerobic Bacteria
Rotifers
Virus
Author: rikazzz Comment
Water Pollution
Preliminary treatment is carried out for removal of the
Dissolved materials
Floating Materials
Suspended solids
Organic matters
Author: rikazzz Comment
Water Pollution
In SOCs, most common organic pollutants are:
DDT
Weed killers
Pesticides, Herbicides
Sprays
Author: rikazzz Comment
Water Pollution
Sources which can be readily identified at a single location is known as
Point Source
Diffused Source
Stationary Source
Natural source
Author: rikazzz Comment
Water Pollution
Leftover material in secondary treatment is used as
Waste
Manure
Disposed Off
All of Above
Author: rikazzz Comment
Water Pollution
‘SOCs’ stands for
Systematic organic chemicals
Synthetic organic chemicals
Sematic organic chemicals
Subjective organic chemicals
Author: rikazzz Comment
Water Pollution
Which bacteria consumes organic matter as their food, and thus oxidizing it to stable end product?
Viruses
Aerobic Bacteria
Anaerobic Bacteria
Rotifers
Author: rikazzz Comment
Water Pollution
Secondary treatment reduces bacterial load, ranges from
90-100%
80-98%
40-60%
10-30%
Author: rikazzz Comment
Water Pollution
What does total solid include ?
Total Solid Waste
Total Dissolved Solids
Total Suspended Solids
Both b and c
Author: rikazzz Comment
Water Pollution
Finely divided solid, remaining either with in solution or in suspension is known as
Settaleable Solids
Dissolved Solids
Suspended solids
Colloidal Solids
Author: rikazzz Comment

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