WO1991008174A1 - Processing plant for i.a. sanitary slaughtering - Google Patents

Processing plant for i.a. sanitary slaughtering Download PDF

Info

Publication number
WO1991008174A1
WO1991008174A1 PCT/NO1990/000185 NO9000185W WO9108174A1 WO 1991008174 A1 WO1991008174 A1 WO 1991008174A1 NO 9000185 W NO9000185 W NO 9000185W WO 9108174 A1 WO9108174 A1 WO 9108174A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
blood
slaughtering
sanitary
processing plant
Prior art date
Application number
PCT/NO1990/000185
Other languages
French (fr)
Inventor
Jarle Boge
Original Assignee
Unik Filtersystem A/S
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 Unik Filtersystem A/S filed Critical Unik Filtersystem A/S
Publication of WO1991008174A1 publication Critical patent/WO1991008174A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/04—Combinations of filters with settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/06—Separation devices for industrial food processing or agriculture
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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

Definitions

  • the invention comprises a processing plant for sanitary slaughtering, principally for the slaughter of fish, but the applicant also claims that the process in principle could be the same for all types of slaughteries.
  • the aim of the subject processing plant is to remove with nearly 100 percent effect, scale, organic material, particles, blood, nutritious salts, bacteria and virus.
  • this is achived by keeping the total amount of process water at a low level, which is possible to handle; and filtering and cleaning all water that is used in a process, also water from tank truck or well vessel. This prevents impurities and diseases to be transferred in the transporting link. Further, all entrails are ensilaged by use of formic acid for possible processing into fodder.
  • blood is stored in a seperate tank. The PH-level is lowered to 5, so that all fish pathogenic bacteria are killed. Polymer is added to raise the percentage of solid matter. This resource could possibly be recycled into the food chain. Further, water mixed with blood is cleaned by adding mineral salts.
  • the mineral is added in very small amounts, and stirred into the water by help of a coil pipe, so called flocculation.
  • flocculation When water stands for settlement in a precipitation tank, remains of blood are tied to the mineral, and both are sedi ented. It is also significant that the UV-aggregates are of a new and further modified type with high effectiveness.
  • the main characteristics of the aggregate are that the lamps are hanging dry over the surface of the water, as opposed to aggregates where the lamps are submerged, and therefore subject to overgrowing (which was the case for the aggregates considered by the Reinertsen-committee) , and further that the waterflow, -amount and -level are automaticly monitored, and that the temeprature is kept constantly at 20 degrees Celsius, and that the trans ittion (75 %) after blood sedimentation is so high that the total effective rate is close to 100 %.
  • the new UV-aggregate kills all microorganisms.
  • the process also includes a polishing tank for refining of water in its sedimentation phase.
  • the mud tanks are built as alternate tanks, which at intervals are drained, and the water is cleaned for new use in the process.
  • the plant in total is highly dependable and automatically monitored. An alarm is set off and the plant stops in accordance to prior selected levels.
  • FIG. 1 The processing plant according to the present invention is shown in figures 1 and 2, where figure 1 is the main flowchart, and 2 is more detailed description of the final water treatment.
  • the figures show, schematically and simplified, an overall view of the processing plant, in which the present configuration is applied for a fish slaughtery.
  • Live fish are delivered by well boat (1) .
  • a tarpaulin is strung between boat and dock, so that spilled water runs back into the well.
  • the well is emptied completely of water, and cleaned.
  • the transportation water is pumped (3) to the plant, where it is filtrated (4) and undergoes UV-treatment (5) . Mud is recycled into the mud tank (11) .
  • the water is now free from bacteria and virus, and used in the slaughtery process.
  • the reservoir tank (6) supplies water for the tank for draining blood from the fish (7) and the gutting table (8) .
  • This residue represents a nutritive substance which could be used for instance as fodder for fur-bearing animals.
  • a mineral salt is added (12) to the mud water and stirred by flow in a coil pipe, flocculation (13) .
  • the blood sedimentation tank (14) has been constructed so that the slam water is lead into and down in a central cylinder (figure 2, no. 14) whereafter it rises in the tank. Remains of blood are bound by the mineral salt, and sinks to the bottom while the water rises and runs out into a gutter around the tank and further into levelling tanks (15) .
  • the sedimentation tank (14) has an ajustable water drain on top (figure 2) so that the water surface is skimed evenly down into the gutter.
  • the levelling tanks (15) are equipped with a pump floating at water surface in order to ensure optimum effect regardless of water level.
  • the last phaces of the cleaning process consists of wheel filtration (16) and ultra violet radiation treatment (UV-filter, 17) .
  • the wheel filters are of UNIK type, where the filtration tissue are rotating vertically in the filtration tank.
  • the filters are automaticly cleaned by vacuum suction (figure 2, no. 20, 21), continually during the rotation. Mud goes to alternate tank (19) for sedimentation and disposal. Cleaned water - free of fats, nutritious salts, particles of all kinds, coloring matter, bacteria and virus - passes on to drain (18) .
  • Pipe flocculation Volume 500 liters, period of stay 2 min, 0,6 m/sek.
  • Tank for sedimen ⁇ tation of blood approximately 35 m3, surface area 15 m2 pointed bottom mud storage capacity approximately 7 m3
  • Leveling tank Min. volum 100 m3, pump floating at surface, 50 - 150 1/min.
  • UV-aggregate 6,5 by 1,0 m, 72 lamps 8 cm. above water surface, water depth 2 cm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

Processing plant for i.a. sanitary slaughtering which by means of a series of devices makes it possible to clean by nearly 100 % efficiency all water used in transportation and slaughtering (figures 1 and 2, no. 1-21), and at the same time reducing the total amount of water to a minimum. The plant uses UNIK wheel filters with vacuum suction (4 and 16), recently modified UV-aggregates with dry lamps (5 and 17), addition of mineral salt (12) by means of pipe flocculation (13) and sedimentation of blood and blood colors by means of a sedimentation tank (14). Effluent (18) to recipient consists of water that has been cleaned, and is free of particles, remains of blood, discoloring, bacteria and virus. As a by-product, the plant delivers biological solids of two types, ensilaged coarse offals (10) and blood with a high percentage of solid matter (19). Both of the latter could probably be used in the manufacturing of fodder. The processing plant can be a significant addition in the fight against spreading of diseases between breeding plants and natural marine life.

Description

PROCESSING PLANT FOR I.A. SANITARY SLAUGHTERING
The invention comprises a processing plant for sanitary slaughtering, principally for the slaughter of fish, but the applicant also claims that the process in principle could be the same for all types of slaughteries.
Diseases and the spread of diseases - in any given stock, but also as a threat against humans - has created problems for instance within Norwegian breeding business. It has proved difficult to prevent diseases from spreading. It is therefore very important that efficient solutions are found and applied within all critical points in the chain from breeding to marketing. One of these critical points is the slaughtering.
It has previously been attempted to create sanitary conditions for fish slaughtering. However, the processes have not been perfect, so that the efficiency has not been good enough. Partly, important links of the chain have been overlooked, and partly has been applied cleaning systems wich have not worked satisfactorily. One example could be taken from the paper issued by so called Reinertsen-co mittee, which concluded also that ultra violet treatment cannot be used for fighting of bacteria and virus.
The aim of the subject processing plant is to remove with nearly 100 percent effect, scale, organic material, particles, blood, nutritious salts, bacteria and virus. Somewhat simplified, the plant's functions as follows: A. Coarse separation of scale and entrails for ensilage and possible processing into fodder.
B. Removal of blood remains from the water, together with discoloring.
C. Filtration of particles of all types from the process water.
D. Secondary treatment of the filtrated water with ultra violet rays in an improved process, so that bacteria and virus is killed.
According to the present invention this is achived by keeping the total amount of process water at a low level, which is possible to handle; and filtering and cleaning all water that is used in a process, also water from tank truck or well vessel. This prevents impurities and diseases to be transferred in the transporting link. Further, all entrails are ensilaged by use of formic acid for possible processing into fodder. In addition, blood is stored in a seperate tank. The PH-level is lowered to 5, so that all fish pathogenic bacteria are killed. Polymer is added to raise the percentage of solid matter. This resource could possibly be recycled into the food chain. Further, water mixed with blood is cleaned by adding mineral salts. The mineral is added in very small amounts, and stirred into the water by help of a coil pipe, so called flocculation. When water stands for settlement in a precipitation tank, remains of blood are tied to the mineral, and both are sedi ented. It is also significant that the UV-aggregates are of a new and further modified type with high effectiveness. The main characteristics of the aggregate are that the lamps are hanging dry over the surface of the water, as opposed to aggregates where the lamps are submerged, and therefore subject to overgrowing (which was the case for the aggregates considered by the Reinertsen-committee) , and further that the waterflow, -amount and -level are automaticly monitored, and that the temeprature is kept constantly at 20 degrees Celsius, and that the trans ittion (75 %) after blood sedimentation is so high that the total effective rate is close to 100 %. The new UV-aggregate kills all microorganisms.
Another feature are the UNIK wheel filters which are part of the process, being continually cleaned by vacuum suction (as opposed to flushing with water) . This greately reduces the consumption (amount of circulation) of water. Significantly, the process also includes a polishing tank for refining of water in its sedimentation phase. The mud tanks are built as alternate tanks, which at intervals are drained, and the water is cleaned for new use in the process. The plant in total is highly dependable and automatically monitored. An alarm is set off and the plant stops in accordance to prior selected levels.
The processing plant according to the present invention is shown in figures 1 and 2, where figure 1 is the main flowchart, and 2 is more detailed description of the final water treatment.
The figures show, schematically and simplified, an overall view of the processing plant, in which the present configuration is applied for a fish slaughtery. Live fish are delivered by well boat (1) . At loading, a tarpaulin is strung between boat and dock, so that spilled water runs back into the well. Water that goes along to the receiving tank (2) on shore, runs back into the boat. After loading, the well is emptied completely of water, and cleaned. The transportation water is pumped (3) to the plant, where it is filtrated (4) and undergoes UV-treatment (5) . Mud is recycled into the mud tank (11) . The water is now free from bacteria and virus, and used in the slaughtery process. The reservoir tank (6) supplies water for the tank for draining blood from the fish (7) and the gutting table (8) . Under the gutting table is mounted a coarse recipient (9) for scale and remains of fish, which passes on to ensilage with formic acid in a silo (10) . This residue represents a nutritive substance which could be used for instance as fodder for fur-bearing animals. Water that runs from the tank for draining blood from the fish and the gutting table, as well as from the drain in the floor, runs into a central mud tank (11) for sedimentation. When the upper levels of the water enter a clear phase, the water is pumped on to final cleaning. A mineral salt is added (12) to the mud water and stirred by flow in a coil pipe, flocculation (13) . The blood sedimentation tank (14) has been constructed so that the slam water is lead into and down in a central cylinder (figure 2, no. 14) whereafter it rises in the tank. Remains of blood are bound by the mineral salt, and sinks to the bottom while the water rises and runs out into a gutter around the tank and further into levelling tanks (15) . The sedimentation tank (14) has an ajustable water drain on top (figure 2) so that the water surface is skimed evenly down into the gutter. The levelling tanks (15) are equipped with a pump floating at water surface in order to ensure optimum effect regardless of water level. The last phaces of the cleaning process consists of wheel filtration (16) and ultra violet radiation treatment (UV-filter, 17) . The wheel filters are of UNIK type, where the filtration tissue are rotating vertically in the filtration tank. The filters are automaticly cleaned by vacuum suction (figure 2, no. 20, 21), continually during the rotation. Mud goes to alternate tank (19) for sedimentation and disposal. Cleaned water - free of fats, nutritious salts, particles of all kinds, coloring matter, bacteria and virus - passes on to drain (18) .
Examples of capacity relations are: Collection tank: approximately 6 m3 Pump: 250 1/min. Mineral tank: 700 liters, 14 days consumption, 25 ■ 100 ml/min.
Pipe flocculation: Volume 500 liters, period of stay 2 min, 0,6 m/sek.
Tank for sedimen¬ tation of blood: approximately 35 m3, surface area 15 m2 pointed bottom mud storage capacity approximately 7 m3
Leveling tank: Min. volum 100 m3, pump floating at surface, 50 - 150 1/min.
U IK-fliters: 250 1/min. UV-aggregate: 6,5 by 1,0 m, 72 lamps 8 cm. above water surface, water depth 2 cm. 150
1/min.

Claims

WHAT IS CLAIMED IS:
1. Processing plant also for sanitary slaughtering, wherein all water used during transportation and for processing is completely cleaned of fats, particles, nutritious salts, blood, discoloring, bacteria and virus through a chain of processes (figures 1 and 2, no. 1 - 21), including also coarse separation, sedimentation, sedimentation by mineral salt, wheel filtration and UV- treatment.
2. Plant according to cla_im 1, wherein filtrated and UV- treated water from the transportation tank (figure 1 no. 1) is used in the tank for draining blood from the fish and gutting.
3. Processing plant also for sanitary slaughtering in accordance with claims 1 and 2, wherein mineral salt is added to mud water and stirred in by means of pipe flocculation (12 and 13) .
4. Processing plant also for sanitary slaughtering in accordance with claims 1 - 3, wherein remains of blood and blood colors are setimented form the water by using mineral salt (14) .
5. Processing plant for sanitary slaughtering in accordance with claims 1 - 4, wherein processing water is filtrated by wheel filters with vacuum suction (figure 2, no. 16 and 20) .
6. Processing plant for sanitary slaughtering in accordance with claims 1 - 5, wherein filtrated processing water is treated with radiation in UV-aggregates with dry lamps and even temperature over a shellow, flowing water layer.
PCT/NO1990/000185 1989-12-05 1990-12-05 Processing plant for i.a. sanitary slaughtering WO1991008174A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO89894849A NO894849L (en) 1989-12-05 1989-12-05 PROCESSING PLANT FOR BL.A. SANITET SLAUGHTER.
NO894849 1989-12-05

Publications (1)

Publication Number Publication Date
WO1991008174A1 true WO1991008174A1 (en) 1991-06-13

Family

ID=19892649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1990/000185 WO1991008174A1 (en) 1989-12-05 1990-12-05 Processing plant for i.a. sanitary slaughtering

Country Status (3)

Country Link
AU (1) AU6951591A (en)
NO (1) NO894849L (en)
WO (1) WO1991008174A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572757A1 (en) * 1990-11-30 1993-12-08 UNIK FILTERSYSTEM ApS Method to process sour humus containing water
CN109502886A (en) * 2018-11-21 2019-03-22 山西大学 A kind for the treatment of process of meat products processing waste water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1382983A (en) * 1970-12-22 1975-02-05 Jorgensen S E Water purification
GB1552172A (en) * 1975-09-26 1979-09-12 Saint Gobain Techn Nouvelles Process for the clarification and sterilization of effluent
GB2035285A (en) * 1978-11-20 1980-06-18 Ct Tech Komunal Method and apparatus for treating water and other liquids
EP0293350A2 (en) * 1987-05-15 1988-11-30 NILSSON, Harry Filter for concentrating suspensions
GB2218973A (en) * 1988-05-25 1989-11-29 John M Fuller Limited Water treatment system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1382983A (en) * 1970-12-22 1975-02-05 Jorgensen S E Water purification
GB1552172A (en) * 1975-09-26 1979-09-12 Saint Gobain Techn Nouvelles Process for the clarification and sterilization of effluent
GB2035285A (en) * 1978-11-20 1980-06-18 Ct Tech Komunal Method and apparatus for treating water and other liquids
EP0293350A2 (en) * 1987-05-15 1988-11-30 NILSSON, Harry Filter for concentrating suspensions
GB2218973A (en) * 1988-05-25 1989-11-29 John M Fuller Limited Water treatment system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Volume 102, No. 18, 154251u, 6 May 1985, (Columbus, Ohio, US), KARPATI, A et al., "Suitable Pretreatment of Sewage Resulting in Pollution Drop in Meat Processing", see page 313; & DEV. FOOD SCI. (Food Ind. Environ.), 1984, 9, 367-376. *
PATENT ABSTRACTS OF JAPAN, Volume 6, No. 102, C107; & JP,A,57 032 794, 22-02-1982, (MITSUBISHI KASEI KOGYO K.K.). *
WATER TREATMENT HANDBOOK, Fourth English Ed., Degremont, 1973, page 746 - page 749. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572757A1 (en) * 1990-11-30 1993-12-08 UNIK FILTERSYSTEM ApS Method to process sour humus containing water
CN109502886A (en) * 2018-11-21 2019-03-22 山西大学 A kind for the treatment of process of meat products processing waste water

Also Published As

Publication number Publication date
NO894849D0 (en) 1989-12-05
AU6951591A (en) 1991-06-26
NO894849L (en) 1991-06-06

Similar Documents

Publication Publication Date Title
JP2637809B2 (en) Sewage treatment equipment
US9380766B2 (en) Aquaculture system
CN106942121A (en) A kind of culturing pool
CN214060160U (en) Livestock-raising excrement and urine collection processing apparatus
KR101555134B1 (en) Recirculating aquacultural tank
WO1991008174A1 (en) Processing plant for i.a. sanitary slaughtering
EP0568597A1 (en) A method of and an apparatus for separating liquid manure into a thick slurry phase with high dry matter content and an aqueous phase with desired - high, moderate or low - n-content.
Wood The production of clean shellfish
Mohlman Packing House Industry
CN206118851U (en) Sea water fish supports pond water filtering ponds temporarily
Shammas et al. Biological Treatment of Poultry Processing Wastewater
Nielsen Treatment and disposal of processing wastes
JP3289962B2 (en) Water cleaner
CN211896339U (en) Shrimp culture sewage purification device
Supan Container-relaying of oysters: an alternative to depuration and relaying
CN108657384A (en) A kind of cyanobacteria processing ship and blue-green algae treatment method
Fujiki et al. The mechanism of methylmercury accumulation in fish
CN213037547U (en) Integrated ship sewage energy-saving treatment equipment
Grames et al. Primary treatment of potato processing wastes with byproduct feed recovery
CN206033487U (en) Slaughterhouse sewage treatment system
Miner et al. Chemical treatment of anaerobic swine manure lagoon effluent and contents
JPH0337994B2 (en)
Clise Industrial wastewater reuse
Nayar et al. Purification of farm grown oysters
Zachritz et al. Wastewater treatment options for Louisiana seafood processors

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BG BR DK JP KR LK MG MW RO SD SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CM DE DK ES FR GA GB GR IT LU ML MR NL SE SN TD TG