Tertiary Treatment Technology for Dairy Waste Water
Technology: Prof. B.D. Tripathi has developed this technology for the Dairy Waste Water treatment (2002).
Principle: Aquatic plants such as Eichhornia crassipes, Lemna minor and Azolla pinnata are used in different combinations.
Removal: 78.8% Nitrogen and 62.5% Phosphorus are removed from the dairy wastewater.
Economic benefits: Rich contents of N, P, K, Ca, Mg and crude protein in tissues of the experimental plants indicates their utility as animal fodder.
Bio-fertilizer: Very good quality of bio-fertilizer is produced from these plants used for the treatment.
Recognition of the Technology: Technology was published in the year 2002 in an International Journal “Water Air Soil Pollution Vol. 143, No. 1-4, pp 377-385”.

Air Pollution Control Technology for Silver Refineries
Technology: Prof. B.D. Tripathi has developed this technology for the control of Air Pollution in Silver Refineries (1995).
Principle: Pollutant gases are dissolved in specific solvents and removed.
Removal: 99% toxic gases are removed.
Economic benefits: NO2 released from Silver Refineries is recycled & converted to HNO3 which is again used.
Recognition of the Technology: Device is used in many Indian Silver Refineries.

Advanced Wastewater Treatment Technology
Technology: This is an advanced wastewater treatment technology developed by Prof. B.D. Tripathi (2011). Technology is used for removal of organic materials and bacterial disinfection.
Principle: Different concentrations of Ozone gas is passed through the wastewater for different contact time. In this technology Ozone gas is used as strong oxidant and disinfectant.
Removal: >95% organic materials are degraded. Technology has also demonstrated
bacterial disinfections >98%.
Recognition of the Technology: Technology is commonly used for removal of organic materials and bacterial disinfection. Technology was published in the year 2011 in an International Journal “Bioresource Technology 102 (2011) 2481–2486”.

Air Pollution Control Technology for Brick Industries
Technology: Developed by Prof. B.D. Tripathi for air pollution control in Brick Industries (2003).
Principle: This low cost technology is based on the cyclone and wet scrubber methodology for the removal of particulate matters and gaseous pollutants from Stack/Kilns of the Brick Industries.
Removal: 80% to 95% particulate matters and toxic gases are removed.

Recognition of the Technology: Technology is commonly used in fixed kiln of the brick industries.

Treatment Technology for Saree Printing Industries
Technology: Developed by Prof. B.D. Tripathi in consultation with the experts from U.P. Pollution Control Board for the treatment of effluents released from Saree Printing Industries (1998).
Principle: This is the most economic primary treatment technology in which precipitation and gravitational force techniques are used along with lime, alum and activated charcoal to filter the pollutants.
Removal: About 60% to 85 % pollutants are removed
Recognition of the Technology: This technology was approved by Hon’ble High Court, Allahabad.