CN1237869C - Water treatment method of circulating water fish culture in factory style - Google Patents

Water treatment method of circulating water fish culture in factory style Download PDF

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Publication number
CN1237869C
CN1237869C CNB2003101144100A CN200310114410A CN1237869C CN 1237869 C CN1237869 C CN 1237869C CN B2003101144100 A CNB2003101144100 A CN B2003101144100A CN 200310114410 A CN200310114410 A CN 200310114410A CN 1237869 C CN1237869 C CN 1237869C
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CN
China
Prior art keywords
water
sea water
fish
breeding fish
industrial circulating
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Expired - Fee Related
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CNB2003101144100A
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Chinese (zh)
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CN1545865A (en
Inventor
曲克明
宋德敬
马绍赛
薛正锐
杜守恩
王秉心
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Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences
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Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences
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Priority to CNB2003101144100A priority Critical patent/CN1237869C/en
Publication of CN1545865A publication Critical patent/CN1545865A/en
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Publication of CN1237869C publication Critical patent/CN1237869C/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The present invention relates to a water treatment method of industrial circulating water fish culture in sea water, which comprises: sea water flowing out of a fishpond is filtered, added with oxygen and sterilized; the treated sea water is sent into the fishpond for circulating use. The present invention is characterized in that the residual bait and the excrement of the sea water flowing out of the fishpond are removed through a full automatic pipeline filter; the seat water enters a foam separation pond through a circulating pump and part of suspended matter and protein are removed; then the seat water enters a biological cleaning pond for removing ammonia nitrogen; the water temperature and the pH value of the purified sea water are regulated; the sea water is sterilized through ultraviolet rays, and then enters an automatic water quality monitoring system after entering a high efficiency dissolved oxygen device for adding the oxygen; after detection, the sea water enters the fishpond again to complete a circulation. The present invention has the advantages of reasonable technological process, convenient operation and management and good sea water quality after treatment. The present invention has good conditions which are suitable for the growth of cultured fishes, can guarantee the high and stable yield of the fishes and realize the purposes of water saving, energy saving and marine environment protection.

Description

The industrial circulating water method for treating water of breeding fish
Technical field
The invention belongs to the cycle water fish-cultivating technology, is a kind of industrial circulating water method for treating water of breeding fish specifically.
Background technology
It is facilities and equipment by certain that the seawater industrial circulating water is breeded fish, and the water of breeding fish is constantly recycled, thereby both guaranteed high yield, the stable yields of annual marketable fish, accomplishes again to economize on water, energy-conservation, the purpose of protecting the marine environment.External fishery developed country (the particularly Western European countries) industrial fish farming technology is more advanced, but its facilities and equipment involves great expense, and is not suitable for the national conditions of China.But the present seawater industrial fish farming of China mostly is an open type fish culture in running water pattern, its energy consumption height, waste groundwater resources, and because the water of breeding fish directly is discharged into the sea, thereby cause pollution to marine environment.
Summary of the invention
The objective of the invention is the coastal actual concrete condition of breeding fish and producing of problem and China at the prior art existence; a kind of industrial circulating water that the proposes method for treating water of breeding fish; technological process is reasonable; operational management is convenient; the seawater quality of handling is good; and have the suitable long preferable condition of sashimi (raw fish) of culturing, and can guarantee high yield, the stable yields of fish, can realize again economizing on water, energy-conservation, the purpose of protecting the marine environment.
The objective of the invention is to be achieved through the following technical solutions: a kind of industrial circulating water method for treating water of breeding fish, comprise the sea water filter that crawl is flowed out, oxygenation, sterilization, and deliver in the crawl by the seawater that circulating pump will be handled and to recycle, it is characterized in that earlier the seawater of crawl outflow being removed residual bait and excreta through full-automatic piping filter filtration, entering the foam separate tank by circulating pump again separates the part suspension, then, enter and remove ammonia nitrogen in the biological cleaning pond, the seawater that purified is carried out temperature and pH regulator, then cut off pathogeny by disinfection by ultraviolet light, enter oxygenation in the highly effective oxygen dissolving device again, be provided with the combination sensor of monitoring water quality index at highly effective oxygen dissolving device delivery port, sensor will detect data and be sent to monitor set, show, print, report to the police in the calculator of one, water after tested enters in the crawl again.
Concrete technical measures comprise, feed ozone and air in the foam separate tank, and the water that comes out from the foam separate tank flows into the biological cleaning pond, reduces the ammonia nitrogen in the water, and the biological cleaning pond is divided into two-stage, and dissimilar purification fillers respectively are housed.
Further specifically technical measures are, efficient heat exchanging fin and pH regulator material are housed in water temperature and pH regulator pond, reach required optimum water temperature of fish growth and pH value.
In full-automatic piping filter, automatic recoiling device and blowoff line are set.
In the highly effective oxygen dissolving device, add pure oxygen.
The present invention compared with prior art has many advantages and good effect:
1, adopt the present invention can be effectively with protein such as fish excreta, residual bait and organic matter at the harmful NH of undecomposed paired aquaculture organism 3/ NH 4 -, NO 2 -Deng before separate, thereby reduce BOD and COD in the water, the cycle water of seawater industrial fish farming is played good catharsis.
2, the present invention has filtering function preferably, can remove impurity such as suspension in the water, colloidal particles effectively.
3, the dual decontamination system that adopts of the present invention, sterilization, Disinfection Effect are good, can effectively cut off pathogeny, and safe and reliable.
4, the present invention can regulate water temperature automatically according to the fish growth demand, cultures thereby accomplish to carry out the whole year marketable fish.
5, highly effective oxygen dissolving device of the present invention can make oxygen in water reach hypersaturated state, under this state, that fish ingest is many, growth soon, susceptible disease not.
6, automatic water quality monitoring system of the present invention can be monitored various quality problems and report to the police in real time, so that the growing environment of the best is provided for cultured fishes.
The present invention is practical, can directly apply to the existing seawater industrial circulating water of China and breed fish in big the production.
Description of drawings
Fig. 1 is the seawater of the present invention treatment system process chart of breeding fish.
Embodiment
As shown in Figure 1, the water that comes out from crawl 09 flows into full-automatic piping filter 01 earlier, removes solid particle and suspension; With water circulating pump with full-automatic piping filter 01 go out the water inlet of water pump to foam separate tank 02, in the pond, add an amount of air and ozone simultaneously, remove too much CO in the water 2And PF; The water that comes out from foam separate tank 02 flows into one-level biological cleaning pond 03, and the water that comes out from one-level biological cleaning pond 03 flows into two stage biological clarifier-tank 04, is provided with dissimilar purification fillers in the I and II biological cleaning pond, reduces the ammonia nitrogen in the water; The water that comes out from two stage biological clarifier-tank 04 flows into water temperature and pH regulator pond 05, and efficient heat exchanging fin and pH regulator material are housed in the pond, reaches required optimum water temperature of fish growth and pH value; The water that comes out from water temperature and pH regulator pond 05 flows into modular disinfection by ultraviolet light pond 06, cuts off pathogeny, kills virus; The water that comes out from modular disinfection by ultraviolet light pond 06 flows into highly effective oxygen dissolving device 07, and filler is housed in the oxygen-dissolving apparatus, and the oxygen G﹠W is abundant mixed dissolution in oxygen-dissolving apparatus, makes oxygen in water reach hypersaturated state; The water that comes out from highly effective oxygen dissolving device 07 enters automatic water quality monitoring system 08, monitors the demand whether every water quality index (comprising: dissolved oxygen, water temperature, salinity, pH, electricity are led, redox potential etc.) meets the cultured fishes healthy growth in real time; Flow into crawl 09 production of breeding fish at last through the automatic qualified water of water quality monitoring system 08 monitoring, finish a circulation.A part of water because flushing and natural wastage will be used up is so each circulation all will replenish a small amount of fresh seawater (less than 10%).
Have 960 meters at one 2Industrial experimentation has been carried out in the seawater industrial circulating water fish-culture test workshop of water surface for aquaculture.Test with 1 of full-automatic piping filter, flow 200m 3/ h; 1 of foam separate tank, size 4000 * 1000 * 2000mm (length * wide * height); 1 of ozone generator, ozone output 5g/h; 2 in biological cleaning pond, size 7000 * 4000 * 2000mm (length * wide * height); Block compound bio purifies filler 25m 3Elastic curtain shape Filler for water purification 350m 21 in water temperature and pH regulator pond, 4000 * 4000 * 2000mm (length * wide * height); 1 in modular disinfection by ultraviolet light pond, 4000 * 1400 * 700mm (length * wide * height); Modular apparatus for ultraviolet disinfection 1 cover; Highly effective oxygen dissolving device 1 cover, flow 200m 3/ h; 1 of oxygenerator, oxygen output 6m 3/ h, oxygen concentration is greater than 90%; Automatically water quality monitoring and warning device 1 overlap; Area 40m 2, 24 in depth of water 0.8m cement crawl; All pipelines and valve are seawater corrosion resistance UPVC material.
Seawater after process water treatment system of the present invention is handled: 19~21 ℃ of water temperatures; Dissolved oxygen 〉=9mg/L; PH7.8~8.4; Salinity 28~31 ‰; Suspension≤5mg/L; COD≤2.5mg/L; Non-ionic ammonia≤0.015mg/L; Bacterial content is lower than 30% of nature seawater; Water use efficiency is more than 92%; Breed variety is famous-particular-excellent fish such as lefteye flounder, turbot, and cultivation density is 27.4kg/m 2, survival rate 93%.Compare with the open fish culture in running water mode of tradition, the specific yield saves energy is about 30%, and conserve water is more than 90%; The per unit area yield of breeding fish improves more than 1 times, and year taxes and profits increase about 600,000 yuan (with 90 yuan of/kilogram calculating of in October, 2003 flounder fish appearance valency, 960 meters of water surfaces for aquaculture 2).

Claims (7)

1, a kind of industrial circulating water method for treating water of breeding fish, comprise the sea water filter that crawl is flowed out, oxygenation, sterilization, and deliver in the crawl by the seawater that circulating pump will be handled and to recycle, it is characterized in that earlier the seawater of crawl outflow being removed residual bait and excreta through full-automatic piping filter filtration, entering the foam separate tank by circulating pump again separates the part suspension, then, enter and remove ammonia nitrogen in the biological cleaning pond, the seawater that purified is carried out temperature and pH regulator, then cut off pathogeny by disinfection by ultraviolet light, enter oxygenation in the highly effective oxygen dissolving device again, be provided with the combination sensor of monitoring water quality index at highly effective oxygen dissolving device delivery port, sensor will detect data and be sent to monitor set, show, print, report to the police in the calculator of one, water after tested enters in the crawl again.
2, according to the described industrial circulating water of claim 1 method for treating water of breeding fish, it is characterized in that: in the foam separate tank, feed ozone and air, the water that comes out from the foam separate tank flows into the biological cleaning pond, reduce the ammonia nitrogen in the water, the biological cleaning pond is divided into two-stage, and dissimilar purification fillers respectively are housed.
3, according to claim 1 or the 2 described industrial circulating waters method for treating water of breeding fish, it is characterized in that: heat exchanging fin and pH regulator material are housed in water temperature and pH regulator pond, reach required water temperature of fish growth and pH value.
4, according to claim 1 or the 2 described industrial circulating waters method for treating water of breeding fish, it is characterized in that: in full-automatic piping filter, automatic recoiling device and blowoff line are being set.
5, according to the described industrial circulating water of claim 3 method for treating water of breeding fish, it is characterized in that: in full-automatic piping filter, automatic recoiling device and blowoff line are being set.
6, according to claim 1 or the 2 described industrial circulating waters method for treating water of breeding fish, it is characterized in that: in the highly effective oxygen dissolving device, add pure oxygen.
7, according to the described industrial circulating water of claim 5 method for treating water of breeding fish, it is characterized in that: in the highly effective oxygen dissolving device, add pure oxygen.
CNB2003101144100A 2003-12-03 2003-12-03 Water treatment method of circulating water fish culture in factory style Expired - Fee Related CN1237869C (en)

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