Randolfo M Fernandez

US Patent:

7244348, Jul 17, 2007

Filed:

Jan 18, 2005

Appl. No.:

11/037642

Inventors:

Randolfo Fernandez - Houston TX, US
David W. Hill - Sugar Land TX, US
Rudolf C. Matousek - Richmond TX, US
James B. Moore - Katy TX, US

Assignee:

Severn Trent de Nora, LLC - Sugar Land TX

International Classification:

C02F 1/46

US Classification:

205701, 205742, 205500, 2042286, 2042751

Abstract:

A system and method for treating ballast water within an ocean going vessel by generating hypochlorite for treating the ballast water. The system comprises one or more hypochlorite electrolytic cells in fluid communication with a stream of ballast water. A chlorine analyzer is positioned downstream from the electrolytic cells to determine the chlorine concentration of the treated ballast water. A hydrogen separator is connected to the hypochlorite electrolytic cells for venting hydrogen. In the method of this invention, water is taken aboard the ship for ballast in one port. A treatment stream is separated from the ballast water stream and piped to hypochlorite electrolytic cells. Hypochlorite is generated into the treatment stream and the hydrogen byproduct is separated by the hydrogen separators. The treatment stream is then reintroduced to the ballast water to eliminate marine species and pathogenic bacteria from ballast water. The ballast water undergoes de-chlorination prior to being discharged into a new port.

US Patent:

8152989, Apr 10, 2012

Filed:

Jun 1, 2007

Appl. No.:

11/757332

Inventors:

Randolfo Fernandez - Houston TX, US
Rudolf C. Matousek - Richmond TX, US
James B. Moore - Katy TX, US
David W. Hill - Sugar Land TX, US

Assignee:

Severn Trent De Nora, LLC - Sugar Land TX

International Classification:

B01D 17/06
C25B 1/26
C02F 1/461

US Classification:

205688, 205500, 205742

Abstract:

A system and process for treating ballast water within an ocean going vessel by generating hypochlorite for treating the ballast water. The system comprises one or more hypochlorite electrolytic cells in fluid communication with ballast water. The total organic carbon content of the ballast water is ascertained and the amount of hypochlorite generated is modulated in response to the total organic carbon content of the ballast water. In one embodiment the system comprises a total organic carbon analyzer for measuring total organic carbon content. In one embodiment of the process of the invention, hypochlorite production is modulated so that the residual halogen-containing oxidizing agent is maintained in the ballast water. In another embodiment of the process, hypochlorite production is modulated to maintain a weight ratio of hypochlorite to total organic carbon in the ballast water ranging from about 1. 0 to about 3.

US Patent:

20120138516, Jun 7, 2012

Filed:

Feb 9, 2012

Appl. No.:

13/369430

Inventors:

Randolfo Fernandez - Houston TX, US
Rudolf Matousek - Richmond TX, US
James B. Moore - Katy TX, US
David W. Hill - Sugar Land TX, US

Assignee:

SEVERN TRENT DE NORA, LLC - Sugar Land TX

International Classification:

C02F 1/76
C02F 1/467
C02F 1/70
C25B 1/26

US Classification:

210 87, 210 961

Abstract:

A system for treating ballast water includes one or more electrolytic cells in fluid communication with a salt water source and in fluid communication with one or more ballast water tanks, a means for controlling hypochlorite generation by the one or more electrolytic cells, and a neutralization system in fluid communication with the one or more ballast water tanks. The neutralization system includes a means for measuring presence of oxidizing agents in the ballast water, a reducing agent source in fluid communication with the ballast water, and a means for controlling the amount of reducing agent supplied to the ballast water in communication with the means for measuring presence of oxidizing agents in the ballast water. The system may include a flow meter for measuring a ballast water flow rate and/or a TOC analyzer for measuring a TOC content of the ballast water.