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WO2003031345A1 - Electrochemical method for wet oxidation-sterilization of liquid waste from fish slaughtering - Google Patents

Electrochemical method for wet oxidation-sterilization of liquid waste from fish slaughtering Download PDF

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Publication number
WO2003031345A1
WO2003031345A1 PCT/GR2002/000053 GR0200053W WO03031345A1 WO 2003031345 A1 WO2003031345 A1 WO 2003031345A1 GR 0200053 W GR0200053 W GR 0200053W WO 03031345 A1 WO03031345 A1 WO 03031345A1
Authority
WO
WIPO (PCT)
Prior art keywords
sterilization
wet oxidation
electrochemical method
controlled
liquid wastes
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.)
Ceased
Application number
PCT/GR2002/000053
Other languages
French (fr)
Inventor
Markos Ninolakis
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Individual
Original Assignee
Individual
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Filing date
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Application filed by Individual filed Critical Individual
Publication of WO2003031345A1 publication Critical patent/WO2003031345A1/en
Priority to NO20032602A priority Critical patent/NO20032602D0/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
    • A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/03—Electric current
    • A61L2/035—Electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/4617—DC only
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/18—Removal of treatment agents after treatment

Definitions

  • the invention refers to the electrochernical method for wet oxidation- sterilization of the liquid wastes from fish slaughtering.
  • the method due to the production of powerful oxidants during electrolysis, such as 0 2 , CI 2 , CI0 2 , 0 3 , 0 2 , H 2 0 2 , [OH], [CLOH] [O] successfully oxidize all organics in the waste mass, no mud is created, it does not depend on any outer effects such as climate conditions and the riinning cost is noticeably lower than a biological treatment.
  • the liquid waste from fish slaughtering activity is created from the slaughtering department, the blood drainage department and from the c sMection procedure of the areas.
  • the invention refers to the wet oxidation - sterihzation of the wastes from fish slaughtering by electrolysis where the conciseness of the liquid waste and sodium chloride is between 0,5% and 5% in weight/weight, the voltage of direct electric current is between 6V and 48V and the intensity of the direct electric current is between 50An ⁇ p a d 500Amp.
  • the temperature during electrolysis is between 14°C and 60°C and the pH value between 2 and 9,5 points.
  • the waste water entering the cell (d) and re-circulated by the pump (c) is electrolyzed with a voltage 16 V and an intensity of lOOAmps for 60 minutes.
  • the system has a thermal exchanging device (f), which keeps temperature below 60°C and especially to 30°C.
  • the pH is maintained between 2 and 9,5 points and specially to 8,5 points by the support of a pH meter (g), which upon request adds oxide or base to the process from the tanks (h) or (i).
  • redox meter (j) the wastes are neutralized from the residual oxidants by addition of sulfur dioxide from tank (k).

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Water Supply & Treatment (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Electrochemical method for wet oxidation-sterilization of liquid wastes from fish slaughtering where the pass of wastewaters is controlled by grid, controlled voltage and intensity of electric direct current, controlled conciseness of sodium chloride in the wastewaters, controlled temperature of the liquids wastes during electrolysis, controlled value of pH during electrolysis and elimination of residual oxidants with sodium sulfite or sulfur dioxide, I achieve the total elimination of all pathogens and in the same time reduce of the BOD5, COD, Color and TSS in such a limits as by the law.

Description

ELECTROCHEMICAL METHOD FOR WET OXIDATION- STERILIZATION OF LIQUID WASTE FROM FISH SLAUGHTERING
TECHNICAL FIELD
The invention refers to the electrochernical method for wet oxidation- sterilization of the liquid wastes from fish slaughtering.
LEVEL OF CONVΕCTIONAL TECHNOLOGY
Up to now the disposal of liquid waste from fish slaughtering is achieved with biological treatment. The efficiency of such a process depend on the sudden increase or decrease of the organic load in the waste, it is vulnerable to weather conditions, the result of the process is not steady and rarely with in the law, the disinfection that is completed in the last stage do not have the power to eliminate all the pathogen and creates during it's operation mud which is a huge environmental problem. The running cost of such a process is high.
ADVANTAGES OF THE INVENTION
The method, due to the production of powerful oxidants during electrolysis, such as 02, CI2, CI02, 03, 02, H202, [OH], [CLOH] [O] successfully oxidize all organics in the waste mass, no mud is created, it does not depend on any outer effects such as climate conditions and the riinning cost is noticeably lower than a biological treatment.
DESCRIPTION
The liquid waste from fish slaughtering activity is created from the slaughtering department, the blood drainage department and from the c sMection procedure of the areas. The invention refers to the wet oxidation - sterihzation of the wastes from fish slaughtering by electrolysis where the conciseness of the liquid waste and sodium chloride is between 0,5% and 5% in weight/weight, the voltage of direct electric current is between 6V and 48V and the intensity of the direct electric current is between 50Anτp a d 500Amp. The temperature during electrolysis is between 14°C and 60°C and the pH value between 2 and 9,5 points. For better results of oxidation- sterilization of the wastes, before they enter the electrolytic cell or the tank where the cell is, they passed from a fine grid, type screen or cylinder, spaced between 1mm to 0,01rnm. The neutralization of the residual oxidants is accessed by sodium sulfite, or sulfur dioxide assisted by redox meter.
EXAMPLE 1 (drawing 1)
50 hters of waste from fish slaughtering conciseness of 2% in sodium chloride are guided to screen (a) type cylinder with spacers 0,29mm to subtract any solid. The total volume is entering to the tank (b) lOOlit capacity where a submersible pump (c) of re circulation 15m3/h driven this to the electrolytic cell (d). Noble and strategic metals make the anode of the cell and stainless steel 316L the cathode. The cell (d), is powered by a DC transformer (e), with controlled voltage 0,5V to 48V and controlled intensity 0,5 Amp to 500Amp. The waste water entering the cell (d) and re-circulated by the pump (c) is electrolyzed with a voltage 16 V and an intensity of lOOAmps for 60 minutes. The system has a thermal exchanging device (f), which keeps temperature below 60°C and especially to 30°C. The pH is maintained between 2 and 9,5 points and specially to 8,5 points by the support of a pH meter (g), which upon request adds oxide or base to the process from the tanks (h) or (i). At the end of electrolysis, assisted by redox meter (j), the wastes are neutralized from the residual oxidants by addition of sulfur dioxide from tank (k).
EXAMPLE 2 (drawing 2)
50 hters of waste from fish slaughtering conciseness of 2% in sodium chloride are guided to screen (a) type cylinder with spacers 0,29mm to subtract any solid passing towards tank (b) of lOOlit capacity. In tank (b) there is an electrolytic cell (c) witch noble and strategic metals make the anode of the cell and stainless steel 316L the cathode. The cell (c) is powered by a DC transformer (d), with controlled voltage 0,5V to 48V and controlled intensity 0,5Amp to 500Amp. The liquid waste in tank (b) is electrolyzed for 60 minutes with a voltage 16V and an intensity of lOOAmps. Through pH meter (f), I fix the value between 2 and 9,5 and especially to 4 points by addition of hydrochloric acid from tank (g). At the end of electrolysis, assisted by redox meter (j), the wastes are neutralized from the residual oxidants by addition of sulfur dioxide from tank (k)

Claims

1. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering, with controlled screen, controlled voltage and intensity direct electric current, controlled solution of sodium chloride in the waste, controlled temperature of liquid wastes during electrolysis, controlled value of pH during electrolysis and neufralizing residual oxidants by addition of sulfur dioxide, or sodium sulfite.
2. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the screen is made by a grid or cylinder with spacers between 1mm to 0,0 lmm.
3. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the voltage of the direct electric current is between 6V and 48V.
4. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the intensity of direct electric current is between 50Amp and 500Amp.
5. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the conciseness of sodium chloride is between 0,5 to 5% by weight/weight.
6. Electrochemical method for wet oxidation — sterilization of liquid wastes from fish slaughtering as claim 1 where the temperature, during electrolysis is between 14°C to 60°C.
7. Electrochemical method for wet oxidation — sterilization of liquid wastes from fish slaughtering as claim 1 where the pH value is between 2 and 9,5.
8. Electrochemical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the neutralization of residual oxidants is done by sodium sulfϊde.
9.Electrochenιical method for wet oxidation - sterilization of liquid wastes from fish slaughtering as claim 1 where the neutralization of residual oxidants is done by sulfur dioxide.
PCT/GR2002/000053 2001-10-11 2002-10-10 Electrochemical method for wet oxidation-sterilization of liquid waste from fish slaughtering Ceased WO2003031345A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20032602A NO20032602D0 (en) 2001-10-11 2003-06-10 Electrochemical method for wet oxidation sterilization of liquid waste from fish slaughterhouses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20010100469 2001-10-11
GR20010100469A GR1004118B (en) 2001-10-11 2001-10-11 Electrochemical sewage wet oxidation method.

Publications (1)

Publication Number Publication Date
WO2003031345A1 true WO2003031345A1 (en) 2003-04-17

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NO (1) NO20032602D0 (en)
WO (1) WO2003031345A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003104152A1 (en) * 2002-06-05 2003-12-18 Markos Ninolakis Electrochemical wet oxidation method for hydrocarbons mixed with water or with soil
WO2004054932A1 (en) 2002-12-18 2004-07-01 Markos Ninolakis Electrochemical method of sterilizing the sea ballast of ships
US7842695B2 (en) 2003-04-05 2010-11-30 Merck Patent Gmbh Substituted pyrazole compounds
US7960413B2 (en) * 2003-04-05 2011-06-14 Merck Patent Gmbh Pyrazole compounds

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2043306C1 (en) * 1989-12-08 1995-09-10 Всероссийский научно-исследовательский институт мясной промышленности Method for treatment of sewage
JPH10249349A (en) * 1997-03-17 1998-09-22 Kotaro Ogura Organic carbon decomposition method and organic carbon decomposition apparatus
DE19859814A1 (en) * 1998-12-16 2000-06-21 Butzke Werke Aqua Process and assembly to disinfect a supply of drinking or household water with chlorine liberated by electrolysis and minimizing creation of lime scale
EP1074515A2 (en) * 1999-08-06 2001-02-07 Sterilox Medical (Europe) Limited Electrochemical treatment of an aqueous solution
WO2001042143A2 (en) * 1999-12-02 2001-06-14 Gemma Industrial Ecology, Ltd. Method and device for electrochemically disinfecting fluids
EP1108683A2 (en) * 1999-12-14 2001-06-20 Sanyo Electric Co., Ltd. Water treatment device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2043306C1 (en) * 1989-12-08 1995-09-10 Всероссийский научно-исследовательский институт мясной промышленности Method for treatment of sewage
JPH10249349A (en) * 1997-03-17 1998-09-22 Kotaro Ogura Organic carbon decomposition method and organic carbon decomposition apparatus
DE19859814A1 (en) * 1998-12-16 2000-06-21 Butzke Werke Aqua Process and assembly to disinfect a supply of drinking or household water with chlorine liberated by electrolysis and minimizing creation of lime scale
EP1074515A2 (en) * 1999-08-06 2001-02-07 Sterilox Medical (Europe) Limited Electrochemical treatment of an aqueous solution
WO2001042143A2 (en) * 1999-12-02 2001-06-14 Gemma Industrial Ecology, Ltd. Method and device for electrochemically disinfecting fluids
EP1108683A2 (en) * 1999-12-14 2001-06-20 Sanyo Electric Co., Ltd. Water treatment device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LIN S H ET AL: "Saline wastewater treatment by electrochemical method", WATER RESEARCH, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 32, no. 4, 1 April 1998 (1998-04-01), pages 1059 - 1066, XP004116516, ISSN: 0043-1354 *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) *
VIJAYARAGHAVAN K, RAMANUJAM T K, BALASUBRAMNIAN N: "In Situ Hypochlorous Acid generation for the Treatment of Distillery Spentwash", IND. ENG. CHEM. RES., vol. 38, 1999, pages 2264 - 2267, XP002229279 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003104152A1 (en) * 2002-06-05 2003-12-18 Markos Ninolakis Electrochemical wet oxidation method for hydrocarbons mixed with water or with soil
WO2004054932A1 (en) 2002-12-18 2004-07-01 Markos Ninolakis Electrochemical method of sterilizing the sea ballast of ships
US7842695B2 (en) 2003-04-05 2010-11-30 Merck Patent Gmbh Substituted pyrazole compounds
US7960413B2 (en) * 2003-04-05 2011-06-14 Merck Patent Gmbh Pyrazole compounds

Also Published As

Publication number Publication date
GR1004118B (en) 2003-01-21
NO20032602D0 (en) 2003-06-10

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