EP1613555A1 - Electrochemical method of sterilizing the sea ballast of ships - Google Patents

Electrochemical method of sterilizing the sea ballast of ships

Info

Publication number
EP1613555A1
EP1613555A1 EP03777017A EP03777017A EP1613555A1 EP 1613555 A1 EP1613555 A1 EP 1613555A1 EP 03777017 A EP03777017 A EP 03777017A EP 03777017 A EP03777017 A EP 03777017A EP 1613555 A1 EP1613555 A1 EP 1613555A1
Authority
EP
European Patent Office
Prior art keywords
ballast
sea water
ships
sterilizing
sea
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03777017A
Other languages
German (de)
French (fr)
Inventor
Markos Ninolakis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ninolakis Markos
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1613555A1 publication Critical patent/EP1613555A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46133Electrodes characterised by the material
    • C02F2001/46138Electrodes comprising a substrate and a coating
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/46125Electrical variables
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4616Power supply
    • C02F2201/4617DC only
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/005Processes using a programmable logic controller [PLC]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/04Oxidation reduction potential [ORP]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

Definitions

  • the invention refers to the electrochemical method of sterilizing the sea water, which is used as ballast for the balance of ships.
  • sea water which is used as ballast for the balance of ships, from one sea area to another, has caused a major problem to the sea environment, because pathogenic organisms that are dangerous for spreading illnesses, are being transported and the transferee species, that do not have their natural enemies at the new sea environment, are multiplied in the expense of the native organisms, thus changing the area's variety of live organisms.
  • the problem is dealt by changing the sea ballast at water depths of 2000m, but this is something that besides the cost, cannot accomplish a change of the sea ballast more than 90%, or by using chemicals, which cause an environmental decay, or with UV rays, which are ineffective, due to the fact that they do not have a residual action.
  • the electrochemical method of sterilizing the sea ballast uses sea water for the production of the oxidants, such as O 3 , Cl 2 , ClO 2 , is very simple in use and totally effective to the sterilization of the sea ballast and can be applied to great flo s of sea water.
  • the sea water which enters the bilge of the ship, passes through a separation hydro cyclone and the whole or a part of it is led directly or through a bypass to an electrolytic cell, which is supported by a voltage supply of 3 to 30 Volts and an intensity of 5 to 600 Ambers.
  • the total amount of water gathers to the ballast docks of the ship.
  • a REDOX meter that is connected with a PLC, which, depending on the REDOX value, gives a dosing pump, which is within a production and storage container of oxidant made of sea water, the instruction to inject it to the water ballast docks.
  • a second REDOX meter that is inside the docks, gives the instruction to inject oxidation reduction agents, a solution of acid Sodium Thiosulfate or Sodium Thiosulfate from storage containers. Furthermore, through the line of sea water collection and rejection, there are nozzles that inject a solution of acid Sodium Thiosulfate or Sodium Thiosulfate from storage containers after a PLC instruction and through a dosing pump during the rejection in order to inactivate all the oxidants that are within the sea ballast so as to avoid the environment decay.
  • a hydro cyclone that separates solids from liquids (a) is put at an inflow line of sea ballast 300m3/h.
  • the solids left on the grid end up to a bucket (b) in order to be farther treated.
  • the already separated from solids sea water, containing a salt concentration of 2.9% to 3.5%, is led to the electrolytic cell (c), which is supported by a supply of direct current (k) with a voltage of 0.5 to 30 Volts and an intensity of 5 to 600 Ambers.
  • k direct current
  • the already electrolyzed water along with the oxidants ends to the ballast dock (I).
  • a hydro cyclone that separates solids from liquids (a) is put at an inflow line of sea ballast 300m3 h.
  • the solids left on the grid end up to a bucket (b) in order to be farther treated.
  • the already separated from solids sea water, ends to the ballast dock (T).
  • the oxidant is produced by the electrolytic cell (c), which is supported by a supply of direct current (k) with a voltage of 0.5 to 30 Volts and an intensity of 5 to 600 Ambers, by the recirculation of the sea water through the pump (d) inside the container (j).
  • a REDOX meter (f) Inside the ballast dock f ), there is a REDOX meter (f), which is connected to the PLC (e) and if the residual oxidants at the outflow are more than what is provided by the legislation, gives the instruction to a dosing pump (m) that is put inside a container with a solution of Sodium Thiosulfate (n) to inject it in the ballast dock (f) in order to inactivate any possible residual oxidants.

Abstract

Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, during which the solid ingredients of the sea ballast are separated, through a hydro cyclone system and the whole or a part of the sea water is led to a specific electrolytic cell, within which oxidants are produced under specific electrolysis conditions and these oxidants accomplish its sterilization. Subsidiarily as to the existence of adequate oxidants, the same electrolytic cell with a different hydraulic connection in a container with sea water, produces oxidants, which after the instruction of the PLC that receives indications by a REDOX meter within the ballast dock, are injected through a dosing pump and the desired value of the oxidants is kept within the sea ballast. Furthermore, according to the indications of a REDOX meter, the PLC gives the instruction to inject the oxidation reduction material for the dechlorination of the sea ballast during its rejection through the inflow - outflow line.

Description

ELECTROCHEMICAL METHOD OF STERILIZING THE SEA BALLAST OF SHIPS
TECHNICAL FIELD
The invention refers to the electrochemical method of sterilizing the sea water, which is used as ballast for the balance of ships.
The transportation of sea water, which is used as ballast for the balance of ships, from one sea area to another, has caused a major problem to the sea environment, because pathogenic organisms that are dangerous for spreading illnesses, are being transported and the transferee species, that do not have their natural enemies at the new sea environment, are multiplied in the expense of the native organisms, thus changing the area's variety of live organisms. Up to today the problem is dealt by changing the sea ballast at water depths of 2000m, but this is something that besides the cost, cannot accomplish a change of the sea ballast more than 90%, or by using chemicals, which cause an environmental decay, or with UV rays, which are ineffective, due to the fact that they do not have a residual action.
ADVANTAGES OF THE INVENTION
Since the electrochemical method of sterilizing the sea ballast uses sea water for the production of the oxidants, such as O3, Cl2, ClO2, is very simple in use and totally effective to the sterilization of the sea ballast and can be applied to great flo s of sea water.
DESCRIPTION
The sea water, which enters the bilge of the ship, passes through a separation hydro cyclone and the whole or a part of it is led directly or through a bypass to an electrolytic cell, which is supported by a voltage supply of 3 to 30 Volts and an intensity of 5 to 600 Ambers. The total amount of water gathers to the ballast docks of the ship. Inside these docks, there is a REDOX meter that is connected with a PLC, which, depending on the REDOX value, gives a dosing pump, which is within a production and storage container of oxidant made of sea water, the instruction to inject it to the water ballast docks. In order to inactivate the oxidants, a second REDOX meter that is inside the docks, gives the instruction to inject oxidation reduction agents, a solution of acid Sodium Thiosulfate or Sodium Thiosulfate from storage containers. Furthermore, through the line of sea water collection and rejection, there are nozzles that inject a solution of acid Sodium Thiosulfate or Sodium Thiosulfate from storage containers after a PLC instruction and through a dosing pump during the rejection in order to inactivate all the oxidants that are within the sea ballast so as to avoid the environment decay.
Example 1. Drawing 1.
A hydro cyclone that separates solids from liquids (a) is put at an inflow line of sea ballast 300m3/h. The solids left on the grid end up to a bucket (b) in order to be farther treated. The already separated from solids sea water, containing a salt concentration of 2.9% to 3.5%, is led to the electrolytic cell (c), which is supported by a supply of direct current (k) with a voltage of 0.5 to 30 Volts and an intensity of 5 to 600 Ambers. We apply a voltage of 16 Volts and we have an intensity of 250 Ambers at the electrolytic cell for the production of the oxidants. The already electrolyzed water along with the oxidants ends to the ballast dock (I). Inside the dock 0), there is a REDOX meter (f), which is connected to the PLC (e). If the residual oxidants are below the requested limit Cl2 / lit, the PLC gives the insfruction through a dosing pump (h), which is put inside the oxidants production and storage container (j), to forward the oxidant to the ballast dock (f). Through the line of sea water collection and rejection, during the rejection in order to protect the environment from the discard of more oxidants than what is provided by the legislation, there are nozzles (d) that are connected to a container with a solution of acid Sodium Thiosulfate (n) and through a dosing pump (m) inject acid Sodium Thiosulfate, for the thorough inactivation of any possible residual oxidants, following the instmction of the PLC (e) that receives the indication from a REDOX meter (g). Example 2. Drawing 2.
A hydro cyclone that separates solids from liquids (a) is put at an inflow line of sea ballast 300m3 h. The solids left on the grid end up to a bucket (b) in order to be farther treated. The already separated from solids sea water, ends to the ballast dock (T). Inside the dock (T), there is a REDOX meter (g), which is connected to the PLC (e) that gives the instmction through a dosing pump (h), which is put inside the oxidants production and storage container (j), to forward the oxidant to the ballast dock (I), up to the requested limit Cl2 / lit. The oxidant is produced by the electrolytic cell (c), which is supported by a supply of direct current (k) with a voltage of 0.5 to 30 Volts and an intensity of 5 to 600 Ambers, by the recirculation of the sea water through the pump (d) inside the container (j). Inside the ballast dock f ), there is a REDOX meter (f), which is connected to the PLC (e) and if the residual oxidants at the outflow are more than what is provided by the legislation, gives the instruction to a dosing pump (m) that is put inside a container with a solution of Sodium Thiosulfate (n) to inject it in the ballast dock (f) in order to inactivate any possible residual oxidants.

Claims

1. Electrochemical method of sterilizing Ihe sea water, which is used as a ballast balance of the ships, during which the incoming sea water goes through a hydro cyclone system of liquids - solids separation and then the whole or a part of it passes through an electrolytic cell, whose anode is made of Titanium, on which one layer of Pt, or Ir, or Rh, or Pd, or Ru, or Zr, or an alloy of these or two layers, the first made of Ta, or Nb, or Zr, or an alloy of these and the second made of Pt, or Ir, or Rh, or Pd, or Ru, or Zr, or an alloy of these are placed with a welding method and whose cathode is made of steel 316L, or 316IS, or 322 and during the passing through of the sea water an electrolysis is taken place under a controlled voltage and intensity of direct current, controlled pH, controlled salt concentration. The reading of the residual oxidants inside the ballast docks is carried out by a REDOX meter, which gives the instruction, through a PLC, to inject oxidants until they reach the desired value. These oxidants have been produced in a sea water container by an electrolytic cell, whose anode is made of Titanium, on which one layer of Pt, or Ir, or Rh, or Pd, or Ru, or Zr, or an alloy of these or two layers, the first made of Ta, or Nb, or Zr, or an alloy of these and the second made of Pt, or Ir, or Rh, or Pd, or Ru, or Zr, or an alloy of these are placed with a welding method and whose cathode is made of steel 316L, or 316IS, or 322. The oxidation reduction of the sea ballast is carried out through dosing pumps by adding oxidation reduction agents, from their storage containers, in the sea ballast docks or during the outflow of the sea ballast through the inflow outflow line, by injecting oxidation reduction agents from nozzles after the instruction of the PLC that counts the oxidants through a REDOX meter.
2. Electrochemical method of sterilizing the sea water, which is used as aballast balance of the ships, according to the claim 1, where the concentration of the elecfrolytically produced oxidant inside the sea ballast docks, in the form of free chlorine is within 1 to 100 ppm.
3. Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1, where the voltage of the direct current is from 3 to 30 Volts.
4. Elecfrochernical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1, where the intensity of the direct current is from 5 to 800 Ambers.
5. Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1 , where the pH value during the electrolysis is within the range of 5 to 9.
6. Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1, where the measurement of the oxidants in the sea water ballast and the at the inflow outflow line is carried out with a
REDOX meter.
7. Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1, where the concentration of the oxidant in the production and storage container in the form of free chlorine is within 500 to 10.000 pp .
8. Electrochemical method of sterilizing the sea water, which is used as aballast balance of the ships, according to the claim 1, where the oxidation reduction is carried out inside the sea water ballast docks and at the inflow outflow line using a solution of acid Sodium Thiosulfate by a dosing pump or by nozzles, based on the instmction of the PLC that receives the indication of a REDOX meter.
9. Electrochemical method of sterilizing the sea water, which is used as a ballast balance of the ships, according to the claim 1, where the oxidation reduction is carried out inside the sea water ballast docks and at the inflow outflow line using a solution of Sodium Thiosulfate by a dosing pump or by nozzles, based on the instruction of the PLC that receives the indication of a REDOX meter.
10. Electrochemical method of sterilizing the sea water, which is used as aballast balance of the ships, according to the claim 1, where the salt concentration of the sea water is within 2.8% to 3.5 %.
EP03777017A 2002-12-18 2003-12-17 Electrochemical method of sterilizing the sea ballast of ships Withdrawn EP1613555A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20020100545A GR1004273B (en) 2002-12-18 2002-12-18 Electrochemical method of sterilising seawater ballast in ships.
PCT/GR2003/000059 WO2004054932A1 (en) 2002-12-18 2003-12-17 Electrochemical method of sterilizing the sea ballast of ships

Publications (1)

Publication Number Publication Date
EP1613555A1 true EP1613555A1 (en) 2006-01-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03777017A Withdrawn EP1613555A1 (en) 2002-12-18 2003-12-17 Electrochemical method of sterilizing the sea ballast of ships

Country Status (4)

Country Link
EP (1) EP1613555A1 (en)
AU (1) AU2003286274A1 (en)
GR (1) GR1004273B (en)
WO (1) WO2004054932A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206433A (en) * 2012-01-17 2013-07-17 何荣志 Hydraulic group control energy saving system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7244348B2 (en) * 2004-11-29 2007-07-17 Severn Trent De Nora, Llc System and method for treatment of ballast water
US8152989B2 (en) * 2005-01-18 2012-04-10 Severn Trent De Nora, Llc System and process for treating ballast water
US8147673B2 (en) 2005-01-18 2012-04-03 Severn Trent De Nora, Llc System and process for treatment and de-halogenation of ballast water
KR100597254B1 (en) * 2005-09-14 2006-07-06 한국해양연구원 Sterilizing apparatus for ship ballast water using electrolysis
DE102006045558A1 (en) * 2006-09-25 2008-04-03 Rwo Gmbh Water treatment plant
US8968575B2 (en) 2007-08-15 2015-03-03 Evoqua Water Technologies Llc Method and system for treating ballast water
DE102011003187A1 (en) 2011-01-26 2012-07-26 Evonik Degussa Gmbh Apparatus and method for reducing the content of hydrogen peroxide and peracetic acid in a water stream
WO2014064942A1 (en) * 2012-10-25 2014-05-01 パナソニック株式会社 Method for treating ballast water and device for treating ballast water used therefor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472775A (en) * 1977-11-24 1979-06-11 Mitsubishi Heavy Ind Ltd Electrode structural body
JPS5475444A (en) * 1977-11-28 1979-06-16 Kobe Steel Ltd Corrosion preventing method for hot degassed seawater treating apparatus
JPS5867879A (en) * 1981-10-20 1983-04-22 Asahi Glass Co Ltd Electrolytic cell using ion-exchange membrane
JPH0379782A (en) * 1989-08-19 1991-04-04 Fuji Debuison Kagaku Kk Insoluble electrode with laminated porous body
EP1167299A1 (en) * 1999-02-10 2002-01-02 Ebara Corporation Apparatus and method for hydrothermal electrolysis
WO2002072478A2 (en) * 2000-11-06 2002-09-19 Larry Russell Ballast water treatment for exotic species control
US20020170816A1 (en) * 2001-03-26 2002-11-21 Leffler Charles E. Non-chemical water treatment method and apparatus employing ionized air purification technologies for marine application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6602891A (en) 1965-03-10 1966-09-12
US4292175A (en) * 1979-08-03 1981-09-29 Omnipure, Inc. Compact electrocatalytic sewage treatment unit for maritime use
US5364509A (en) 1993-01-21 1994-11-15 Eltech Systems Corporation Wastewater treatment
US7387719B2 (en) 2001-04-24 2008-06-17 Scimist, Inc. Mediated electrochemical oxidation of biological waste materials
GR1004118B (en) 2001-10-11 2003-01-21 Μαρκος Νινολακης Electrochemical sewage wet oxidation method.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472775A (en) * 1977-11-24 1979-06-11 Mitsubishi Heavy Ind Ltd Electrode structural body
JPS5475444A (en) * 1977-11-28 1979-06-16 Kobe Steel Ltd Corrosion preventing method for hot degassed seawater treating apparatus
JPS5867879A (en) * 1981-10-20 1983-04-22 Asahi Glass Co Ltd Electrolytic cell using ion-exchange membrane
JPH0379782A (en) * 1989-08-19 1991-04-04 Fuji Debuison Kagaku Kk Insoluble electrode with laminated porous body
EP1167299A1 (en) * 1999-02-10 2002-01-02 Ebara Corporation Apparatus and method for hydrothermal electrolysis
US6939458B1 (en) * 1999-02-10 2005-09-06 Ebara Corporation Apparatus and method for hydrothermal electrolysis
WO2002072478A2 (en) * 2000-11-06 2002-09-19 Larry Russell Ballast water treatment for exotic species control
US20020170816A1 (en) * 2001-03-26 2002-11-21 Leffler Charles E. Non-chemical water treatment method and apparatus employing ionized air purification technologies for marine application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004054932A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206433A (en) * 2012-01-17 2013-07-17 何荣志 Hydraulic group control energy saving system
CN103206433B (en) * 2012-01-17 2015-08-12 何荣志 A kind of hydraulic pressure group control energy-saving system

Also Published As

Publication number Publication date
GR1004273B (en) 2003-06-23
AU2003286274A1 (en) 2004-07-09
WO2004054932A1 (en) 2004-07-01

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