freshwater crisis and constructed wetlands as possible solution
DESCRIPTION
Slides of my power point presentation on the occasion of World Environment Day 2013 & National Environment Olympiad at Dhaka University.TRANSCRIPT
ALARMING WATER POLLUTION!
VS
How does it Work?
Types of Plants in action
Pilot Scale Tannery Wastewater Treatment Project in AUST
Lab Scale Textile Wastewater Treatment Project in AUST
CONSTRUCTED WETLANDSPILOT SCALE MUNICIPAL WASTEWATER TREATMENT PROJECT IN AUST
LATEST PILOT SCALE FLOATING WETLANDS FOR LAKE WATER TREATMENT IN AUST
Removal Performances (Saeed et al., 2012; Saeed and Sun, 2012)
0
20
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60
80
100
120
NH4-N NO3-N P
con
cen
trati
on
mg/
L
Pollutants
Tannery wetlands
In Out
0
20
40
60
80
100
120
NH4-N NO3-N P
con
cen
trati
on
mg/
L
Pollutants
Tannery wetlands
In Out
0
20
40
60
80
100
120
NH4-N NO3-N P
con
cen
trati
on
mg/
L
Pollutants
Textile wetlands
In Out
0
1000
2000
3000
4000
5000
BOD5 COD
con
cen
trati
on
mg/
L
Pollutants
Textile wetlands
In Out
0
20
40
60
80
100
120
NH4-N NO3-N P
con
cen
trati
on
mg/
L
Pollutants
Municipal wetlands
In Out
0
1000
2000
3000
4000
5000
BOD5 COD
con
cen
trati
on
mg/
L
Pollutants
Municipal wetlands
In Out
Source:
Dr. Tanveer Ferdous Saeed
1. Treatment of tannery wastewater in a pilot-scale hybrid constructed wetland system in Bangladesh. Chemosphere, 88 (9). pp. 1065-1073.2. A review on nitrogen and organics removal mechanisms in subsurface flow constructed wetlands: dependency on environmental parameters, operating conditions and supporting media. Journal of Environmental Management, 112 . pp. 429-448.3. A lab-scale study of constructed wetlands with sugarcane bagasse and sand media for the treatment of textile wastewater. Bioresource Technology, 128 . pp. 438-447.
WHY CONSTRUCTED WETLANDS?
Questions and Queries? For detailed information on water pollution
and constructed wetlands, contact: Mashrekur Rahman VikiDepartment of Civil EngineeringAhsanullah University of Science and Teche-mail: [email protected]: +8801671118639Special Thanks to Dr. Tanveer Ferdous Saeed