Freshwater crisis and Constructed Wetlands as possible solution.

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

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

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