Presentation is all about WaterPollution (1).ppt

its about water pollution

1. WATER POLLUTION

3. Major types of pollutants,
sources and effects
*Mobile sources
*Stationary sources
*Area sources
*Natural sources
*Agriculture sources
*Industrial sources

4. Point and Nonpoint sources

6. Clean Zone
Decomposition
Zone
Septic Zone
Recovery
Zone
Clean Zone
Normal clean water organisms
(trout, perch, bass,
mayfly, stonefly)
Trash fish
(carp, gar,
leeches)
Fish absent,
fungi,
sludge
worms,
bacteria
(anaerobic)
Trash fish
(carp, gar,
leeches)
Normal clean water organisms
(trout, perch, bass,
mayfly, stonefly)
8 ppm
Dissolved
oxygen
(ppm)
Biological
oxygen
demand
8 ppm
Types of
organisms
POLLUTION IN STREAMS

7. LAKE POLLUTION

9. This Photo by Unknown Author is licensed under CC BY

10. OLIGOTROPHIC AND EUTROPHIC
LAKES

11. PREVENTING NONPOINT SOURCE
POLLUTION
•MOSTLY AGRICULTURAL WASTES
•USE VEGETATION TO REDUCE SOIL EROSION
•REDUCE FERTILIZER USE
•USE PLANT BUFFER ZONES AROUND FIELDS
•INTEGRATED PEST MANAGEMENT: ONLY USE PESTICIDES WHEN NECESSARY
•USE PLANT BUFFERS AROUND ANIMAL FEEDLOTS
•KEEP FEEDLOTS AWAY FROM SLOPES, SURFACE WATER AND FLOOD ZONES

12. DRINKING WATER QUALITY
•PURIFICATION OF URBAN DRINKING WATER
•PURIFICATION OF DRINKING WATER IN DEVELOPING
COUNTRIES
•BOTTLED WATER

13. Coal strip
mine runoff
Pumping
well
Waste lagoon
Accidental
spills
Groundwater
flow
Confined
aquifer
Discharge
Leakage
from faulty
casing
Hazardous
waste injection
wellPesticides
and fertilizers
Gasoline station
Buried gasoline
and solvent tank
Sewer
Cesspool
septic tank
De-icing
road salt
Unconfined freshwater aquifer
Confined freshwater aquifer
Water
pumping well
Landfill
Polluted air
GROUNDWATER POLLUTION

14. Pump nanoparticles of
inorganic compounds to
remove pollutants (may be the
cheapest, easiest, and most
effective method but is still
being developed)
Find substitutes for toxic
chemicals
Keep toxic chemicals out of the
environment
Install monitoring wells near
landfills and underground tanks
Require leak detectors on
underground tanks
Ban hazardous waste disposal
in landfills and injection wells
Inject microorganisms to clean
up contamination (less
expensive but still costly)
Store harmful liquids in
aboveground tanks with leak
detection and collection systems
Prevention Cleanup
Pump to surface, clean,
and return to aquifer
(very expensive)
Solutions
Groundwater Pollution
PREVENTING AND CLEANING UP
POLLUTION IN GROUNDWATER

15. Solution

16. WHAT CAN WE DO ?
WATER POLLUTION