Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Bifunctional Rotating Drum Electrode Device and Method for Treatment of Persistent Organic Pollutants
Categories for this Invention
Technology: Bifunctional Reactor Device;
Industry & Application: Environment Engineering, Waste treatment, Treatment for organic pollutants;Â
Market: The global small modular reactor market is projected at a CAGR of 3.6% during (2024-2030)
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Problem Statement
- In the present era, the availability of clean potable water at affordable cost is a growing challenge for mankind. To meet the growing demand of drinking water, many materials & methods are used, but having difficulties due to expensive process/implementation, & consumption of high energy.
- There are many conventional methods discussed herein does not provide solutions as discussed in the present invention.
- Hence, there is a need to address the issues.
Technology
- Present invention describes a bifunctional reactor device and a method for removal of persistent organic pollutants in water.
- The device includes a MoS2-TiO2 coated carbon cloth material as anode and graphene–ferrocene/graphene–hemin coated graphite felt or a combination as cathode.
- Each of the electrodes is wrapped in an individual drum, each drum held by a rotating shaft and is configured such that half the drums are submerged in the waste water while the other half is exposed to air.
- The feed entering the reactor device forms a liquid thin film on the surface of the electrodes.
- The exposed liquid thin film adsorbs oxygen from atmosphere and UV irradiation resulting in effective degradation of organic pollutants adsorbed on the liquid thin film.
- Further said invention discloses a process to degrade pollutants in a solution as shown in figure hereinbelow:
Key Features / Value Proposition
Technical Perspective & Industrial Perspective:
- Facilitates Clean & Green technology of bifunctional reactor device for the removal of dual phase contaminants.
Types of Electrode Pair used:Â
- a)An anode wrapped around a first nonconductive cylinder, wherein the anode comprises of a carbon cloth coated with an anode composite to a predetermined thickness, the anode composite comprising 25 to 75 wt.% of molybdenum disulfide and titanium oxide. b)A cathode wrapped around a second nonconductive cylinder, wherein the cathode comprises of a graphite felt coated with a cathode composite to a predetermined thickness, the cathode composite comprising graphene-ferrocene, graphene-hemin or a combination thereof, wherein graphene content present in the cathode composite is at least 99%.
- Electrode Arrangement: The anode & the cathode arranged in a dual rotating drum configuration configured to rotate about their individual axes comprising a first rotating shaft coupled to a first motor & a second rotating shaft coupled to a second motor; and a UV source configured to uniformly irradiate the surface of the cathode & the anode.
- Removing Cations & Anions &positive-negative charges in approximately in the range of 0.1 to 10Hours, depending on the embodiment of the .Â
Efficiency:Â
- The device & method work over a wide pH range, & achieve a removal efficiency of at least 90%
- Cost-effective & Plug & Play system, provides single solution & applicable in the domestic/Industrialist area.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Indumathi Nambi
Department of Civil Engineering
Intellectual Property
IITM IDF Ref. 1607
Patent No:487475
Technology Readiness Level
TRL-4
Proof of Concept ready, tested in lab.