MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202511131949 A) filed by Madan Mohan Malaviya University Of Technology, Gorakhpur, Uttar Pradesh, on Dec. 26, 2025, for 'a root-zone based wastewater treatment system employing indigenous indian aquatic macrophytes.'
Inventor(s) include Ashish Kumar Singh; Prof. Govind Pandey; and Prof. Chandra Shekhar Prasad Ojha.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a sustainable and low-cost root-zone wastewater treatment system belonging to the field of ecological and decentralized wastewater management. The system employs only indigenous Indian aquatic and semi-aquatic macrophytes for the removal of organic pollutants, nutrients, and heavy metals from domestic and industrial wastewater. The treatment system comprises multiple sequential zones including subsurface and surface flow zones planted with Vetiveria zizanioides, Canna indica, Eichhornia crassipes, and Lemna minor, selected for their high phytoremediation efficiency and climatic adaptability. Wastewater is treated through a combination of physical filtration, microbial degradation, plant uptake, sedimentation, and adsorption mechanisms. Pilot-scale studies demonstrate removal efficiencies of more than 85% for biochemical oxygen demand, approximately 70% for chemical oxygen demand, and over 80% for selected heavy metals within a hydraulic retention time of 3-5 days. The system is modular, scalable, energy-efficient, and particularly suitable for rural and semi-urban regions lacking centralized sewage treatment infrastructure."
Disclaimer: Curated by HT Syndication.
