Title:
TREATING AGENT FOR SHIP BALLAST WATER AND METHOD FOR TREATING SHIP BALLAST WATER USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/065863
Kind Code:
A1
Abstract:
This treating agent for ship ballast water is a mixture which is obtained by adding a phosphoric acid salt and sodium hydroxide to a sodium hypochlorite solution and which has a pH of 10 to 13. It is preferable that the phosphoric acid salt is added in such an amount that the weight ratio of available chlorine to phosphoric acid (PO4) falls within the range of 30:1 to 2:1. The treating agent for ship ballast water exhibits excellent killing properties against organisms contained in ship ballast water, said organisms including bacteria and aquatic microorganisms such as planktons. Further, the treating agent is stable and causes little corrosion.
Inventors:
HIRANO AKIHIDE (JP)
FUKUZAWA KOTARO (JP)
HAYASHI KAZUKI (JP)
FUKASE TETSUROU (JP)
FUKUZAWA KOTARO (JP)
HAYASHI KAZUKI (JP)
FUKASE TETSUROU (JP)
Application Number:
PCT/JP2012/078635
Publication Date:
May 10, 2013
Filing Date:
November 05, 2012
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
A01N59/08; A01N25/00; A01P3/00; C02F1/50; C02F1/76
Foreign References:
| JPH04322788A | 1992-11-12 | |||
| JP2004537571A | 2004-12-16 | |||
| JPS5298638A | 1977-08-18 |
Other References:
CSJ: "5th edition Kagaku Benran Oyo Kagaku Hen I", 1995, THE CHEMICAL SOCIETY OF JAPAN, pages: I-646 - I-647
Attorney, Agent or Firm:
HAYAKAWA, Yuzi et al. (JP)
Yuji Hayakawa (JP)
Yuji Hayakawa (JP)
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Claims: