The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2009
Filed:
Mar. 20, 2007
Vivek Vinayak Ranade, Maharashtra, IN;
Anirudh Bhalchandra, Maharashtra, IN;
Arga Chandrashekar Anil, Goa, IN;
Subhash Shivram Sawant, Goa, IN;
Dandayudapani Ilangovan, Goa, IN;
Rajachandran Madhan, Goa, IN;
Krishnamurthy Pilarisetty Venkat, Goa, IN;
Vivek Vinayak Ranade, Maharashtra, IN;
Anirudh Bhalchandra, Maharashtra, IN;
Arga Chandrashekar Anil, Goa, IN;
Subhash Shivram Sawant, Goa, IN;
Dandayudapani Ilangovan, Goa, IN;
Rajachandran Madhan, Goa, IN;
Krishnamurthy Pilarisetty Venkat, Goa, IN;
Council of Scientific & Industrial Research, New Delhi, IN;
Abstract
The invention disclosed provides an apparatus and method for filtration and disinfection of ship's ballast water, such as sea water, based on hydrodynamic cavitation. The apparatus comprises a vortex diode with a tangential entry port and an axial outlet port with single or multiple bleeding holes. The disinfected water may be re-circulated through the system for additional disinfection or released from the tank into the surrounding waterways. The disinfection of seawater/ship's ballast water is achieved through filtration and hydrodynamic cavitation and the method does not involve use of any chemicals or any chemical reaction. The invented apparatus and method is simple, eco-friendly and can be fitted on to existing intake and discharge systems of any ship with minor modifications. It poses no risk to the health of the ship's crew unlike chemical methods and requires no special skill or additional manpower for its operation. The apparatus and method is capable of effectively sterilizing hazardous organisms contained in ballast water stored in a ballast tank.