Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
A Compact, Modular and Scalable Continuous-flow Greywater Sink for Potable and Non-potable uses
Categories for this Invention
Technology: Continuous-flow greywater sink;
Industry & Application: Home Appliances;
Market: The global flow chemistry market is projected to grow at a CAGR of 12.2% during 2024-2030.
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Problem Statement
- Generally, Domestic water treatment and recycling systems remain largely unexplored due to the large space requirements, high initial investment, & substantial variation in input water quality.
- There are a few treatment method discussed herein which could not provide the suitable solutions by eradicating above issues.
- Hence, there is a need to address said issues in efficient matter.
Technology
- The present invention describes a continuous-flow system for greywater treatment.
- The system comprising an operation units including for the purpose of particulate filtration, photocatalysis, ozonolysis using ozone nanobubbles, UV sterilization, adsorption & nanofiltration, mineralization;
- Further said system includes a sensing unit consisting of sensors, incorporated at several points in the treatment pathway.
- In addition to this, said system includes a controller unit that receives water quality data from all sensing units & provides response to the respective treatment operations.
- Moreover, said invention describes a continuous-flow process for greywater treatment through a compact continuous-flow system.
- First steps explained that the influent greywater flows through the operation units for the purpose of set of process explained herein using smart chart:
- Further steps explained that the influent greywater senses via sensing unit incorporated at several points in the treatment pathway.
- Finally, the influent greywater controlled by a controller unit upon receiving water quality data from all sensing units & provides response to the respective treatment operations.
- The sensing units measure:
- the flow rate, pH,
- TDS,
- TSS,
- turbidity,
- conductivity,
- And the amount of organic & inorganic matter.
- The water softener is added for reducing the hardness of water by precipitating metal ions.
Key Features / Value Proposition
Technical Perspective:
- Compact, modular & scalable continuous-flow graywater sink for greywater treatment;
- Said continuous flow system is attached to a kitchen sink, bathtub, bathroom or toilet, with specific unit operations produce improved quality water from grey water.
- The organic & inorganic pollutants are removed through ozonolysis using ozone nanobubbles at the reactor.
- Further prevent the growth of pathogenic micro-organisms through UV sterilization for disinfection.
- The pharmaceutical contaminants (like carbamazepine) are removed in the presence of ozone nanobubbles and UVA irradiation.
- The volume of the water treated is more than 1 litre per day.
- The influent greywater flows through the treatment pathway where the controller receives feedback from sensing unit that determines the appropriate combination of unit operations to clean greywater for potable and non-potable uses.
User Perspective:
- That can channelize the treatment process for potable & non-potable uses.
- This compact continuous-flow system may be used during natural calamity like flood, drought & others, wherever there is scarcity of fresh clean water.
Industrial Perspective:
- Said continuous-flow system may be applicable in Hotels/Lodges/ restaurants/Resorts, others in house applications.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Pradeep T
Department of Chemistry
Intellectual Property
IITM IDF Ref. 2260;
IN Patent No: 462091
Technology Readiness Level
TRL-4
Proof of Concept ready, tested in lab.