Water Pollution

Water Pollution
Which organism respire in absence of oxygen ?
Facultative Anaerobe
Bacteria
Obligate Aerobe
All of above
Author: rikazzz Comment
Water Pollution
Rise in temperature due to heat from power plant and industries is known as
Heat Pollution
Thermal Pollution
Waste pollution
Solid Pollution
Author: rikazzz Comment
Water Pollution
Tertiary treatment of sewage is also known as
Advance Treatment
Preliminary Treatment
Secondary Treatment
Primary Treatment
Author: rikazzz Comment
Water Pollution
Most animals and plants can grow with pH, between
4 and 9
5 and 9
6 and 9
7 and 9
Author: rikazzz Comment
Water Pollution
What involved in wastewater final treatment ?
BOD
Chlorination
Sedimentation
All of above
Author: rikazzz Comment
Water Pollution
What does solid waste consist ?
Mud
Sand
dust
All of above
Author: rikazzz Comment
Water Pollution
Primary treatment reduces solids, ranges from
20-60%
10-50%
20-70%
40-60%
Author: rikazzz Comment
Water Pollution
Which bacteria flourish in absence of free dissolved oxygen in sewage?
Anaerobic Bacteria
Aerobic Bacteria
Rotifers
Blue green algae
Author: rikazzz Comment
Water Pollution
Floating materials in preliminary treatment includes:
Chemicals
Gases
Liquids
Dead animals
Author: rikazzz Comment
Water Pollution
In which treatment, microorganism decompose fine organic matter?
Preliminary Treatment
Biological Treatment
Secondary Treatment
Tertiary Treatment
Author: rikazzz Comment

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