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Innovative Floating Treatment Wetlands: Tackling Wastewater Pollution and Water Scarcity

The discharge of untreated or partially treated municipal sewage and industrial wastewater contaminates drinking water sources, agricultural soils, and food chains, posing serious risks to human health and contributing significantly to the spread of waterborne diseases. In Pakistan and many other developing countries, effective wastewater treatment remains a major challenge due to inadequate infrastructure and the high capital and operational costs associated with conventional treatment technologies. To address this issue, the National Institute for Biotechnology and Genetic Engineering (NIBGE) has developed an innovative Floating Treatment Wetlands (FTWs) technology that utilizes indigenous aquatic plants, beneficial microorganisms, and locally fabricated floating mats for the sustainable remediation of municipal and industrial wastewater. This nature-based solution is approximately 100 times more cost-effective than comparable international technologies. By harnessing natural biological processes and solar energy, FTWs provide an environmentally friendly, low-maintenance, and energy-efficient approach to wastewater treatment. To date, more than 200,000 m² of FTWs have been installed at over 50 sites across Pakistan, treating approximately 500 million cubic meters of wastewater annually. In addition to improving water quality, these systems contribute to climate change mitigation by sequestering an estimated 500 tons of carbon each year. The successful large-scale deployment of FTWs demonstrates their potential as a scalable and sustainable solution for addressing wastewater pollution and water scarcity in developing countries.

Research projects as principal investigator (some selected out of 41):

1)     To explore plant-endophyte partnerships in constructed wetland for the treatment for textile wastewater. International Foundation of Science (IFS), Sweden, completed.

 2)    Application of floating treatment wetlands in the sewage stabilization ponds of Faisalabad city, Faisalabad-Pakistan to improve sewage effluent quality. Water and Sanitation Agency (WASA), Faisalabad Development Authority (FDA), Faisalabad, Pakistan, completed.

3)      Application of floating island technology for the treatment of oil industry effluent. Higher Education Commission (HEC), Pakistan, Completed. 

4)     Application of bacterial assisted floating treatment wetlands for the remediation of oil well produced wastewater in one of the stagnant pits at Rajian Oil Field, Chakwal, Pakistan. Oil and Gas Development Company Limited (OGDCL), Pakistan, completed. 

Total Publications 120

• 110 International Peer Reviewed Journals Articles and 10 Book Chapters
• As First Author 14, and as Corresponding Author* 61
• Impact Factor 600, Citation 9700 (h-index 57) (i10-index 99)

Some selected out of 120

•  Floating treatment wetlands as a suitable option for large-scale wastewater treatment. Nature Sustainability. 2(9):863-871.
• Large-scale remediation of oil-contaminated water using floating treatment wetlands. npjClean Water-Nature 2(1), 3. 
• A protocol to establish low-cost floating treatment wetlands for large-scale wastewater reclamation. STAR Protocols-Cell Press. 4:4, 102671, 
• A Nature-Based Closed-loop Wastewater Treatment System at Vehicle-Washing Facilities: From Linear to Circular Economy. iScience-Cell Press. 27:4, 109361.