CN103570193B - Circulating water treatment method and equipment for fish egg incubation - Google Patents
Circulating water treatment method and equipment for fish egg incubation Download PDFInfo
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- CN103570193B CN103570193B CN201310561424.0A CN201310561424A CN103570193B CN 103570193 B CN103570193 B CN 103570193B CN 201310561424 A CN201310561424 A CN 201310561424A CN 103570193 B CN103570193 B CN 103570193B
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Abstract
The invention provides circulating water purification treatment equipment for fish egg incubation. The circulating water purification treatment equipment comprises a central tank, a low-level biochemical water treatment device, a high-level peroxidation water treatment device and an incubation device, wherein the low-level biochemical water treatment device comprises an upper-layer water treatment device and a lower-layer water treatment device; the high-level peroxidation water treatment device comprises a third filtering tank and a peroxidation disinfection tank which are sequentially connected; the peroxidation disinfection tank is internally provided with an aeration ring, an ultraviolet lamp, a hydrogen peroxide feeding device and a temperature control device; the third filtering tank is connected with the central tank; the peroxidation disinfection tank is provided with a water outlet pipe. The equipment is capable of purifying water quality and removing diseases and insect pests in an all-round way, creating stable and excellent incubation conditions, saving water resources and reducing cost, and is convenient to use, safe and reliable and suitable for sea-water and fresh-water fish egg incubation.
Description
Technical field
The invention belongs to field of aquaculture devices, particularly a kind of recirculating water purification treatment process for hatch fish roe and equipment.
Background technology
The sixties in last century, Chinese scholar has invented loop-type incubation equipment.Henceforth, since nearly half a century, loop-type incubation equipment is the most frequently used equipment in China's aquatic fry growing field always.This equipment takes numerous shower nozzle to be arranged on bottom circular circuit, by water pump by the clear water in the settling tank of outdoor through shower nozzle from circuit bottom water injection, jet power from bottom to top makes zygote in brooder, keep suspended state to hatch, Spawning water single use, becomes typical open Lotic hatching equipment.
Although loop-type incubation equipment is widely used, but it has more defect, and its major defect comprises: water consumption is large, and floor space is large, and hatching water only depends on outdoor settling tank and precipitates, and lack the water processing establishment of specialty, water quality cannot ensure.Particularly, because the quality of Spawning water and temperature change with Changes in weather, fetal development is very easily affected, and even causes developmental malformation or lethal, thus causes water mo(u)ld infringement.Therefore, in the prior art, the method relying on Drug inhibition water mo(u)ld has become and has improved one of most important measure of hatch fish roe rate.Improve the circulating water treatment device and method that are used for hatch fish roe, break away from the situation of " living at the mercy of the elements " and dependence medicine, be one of content of China's culture fishery research always.
Fish reproduction is many in spring for season, and now weather is changeable, sometimes cold and sometimes hot, brings a lot of challenge to hatch fish roe, stable between the incubation period, good, be vital without the Spawning water of disease and pest for seedling rate.
Chinese patent CN101053317B discloses a kind of comparatively complicated " streak star butterfly fish-egg closed type recirculated water hatching method ", and the method adopts the seawater water treatment method process Spawning water of albumen sepn, filtration and ultraviolet lamp disinfection.China CN102177861B discloses a kind of by impurity and ammonia nitrogen in cascade filtration core biofilter process Spawning water.But above patent does not all relate to water quality peroxidation process, aerobic nitrification and anaerobic denitrifying water treatment measure, therefore the actual Spawning water water quality obtained is unsatisfactory.
In recent years, foreign scholar reports the research adopting recirculated water water technology hatching Atlantic salmon fish fertilized egg, but does not relate to denitrification technology, makes nitrates accumulation, causes seedling rate to reduce.Nearest research shows, in existing recirculated water hatching technology, water treatment is comprehensive, and nitrate is too high may cause embryo's deformity, and then initiation water mo(u)ld is spread unchecked; During incubation, the embryo hatching enzyme of early incubating may cause too early hatching, and death rate increases.
Summary of the invention
Goal of the invention: the object of the present invention is to provide safe and reliable, the comprehensive hatch fish roe water treating equipment purifying water, remove disease and pest.
Technical scheme: a kind of circulating water treatment method for hatch fish roe provided by the invention, comprises the following steps: by pending water successively after filtration, nitration treatment, denitrification process, peroxidation process and get final product.
As improvement, described nitration treatment is specially: processed in aeration nitrification tank by pending water, and poisonous mineralized nitrogen is become nitrate; Described denitrification process is specially: the water through nitration treatment processes in anti-nitration reaction pond, and nitrate transformation is become N
2gas is discharged; Described peroxidation process is specially: through the water of denitrification process in peroxidation sterilization pool, peroxidation process under hydrogen peroxide and ultraviolet acting in conjunction, to kill various microorganism and protozoon, removes remaining pollutent.
Present invention also offers a kind of cycle aqueous cleaning processing unit for hatch fish roe, comprise pond, center, low level biochemical water treatment device, high-order peroxidation water treatment device and hatching apparatus; Described low level biochemical water treatment device comprises upper water treatment unit and lower layer of water treatment unit; Described upper water treatment unit comprises the first filtering basin, the first aeration nitrification tank, the first anti-nitration reaction pond and the tank that connect successively, and the first filtering basin (are connected with pond, center respectively with the first tank; Described lower layer of water treatment unit comprise connect successively the second filtering basin, the second aeration nitrification tank, the second anti-nitration reaction pond and the second tank, the second filtering basin are connected with pond, center respectively with the second tank; Described high-order peroxidation water treatment device comprises the 3rd filtering basin and peroxidation sterilization pool that connect successively, aeration ring, ultraviolet lamp, hydrogen peroxide throwing device and temperature control unit is provided with in described peroxidation sterilization pool, described 3rd filtering basin are connected with pond, center, and described peroxidation sterilization pool is provided with rising pipe.
As improvement, also comprise the first airlift pump and the second airlift pump, described first airlift pump is located between the first tank and pond, center, and described second airlift pump is located between the second tank and pond, center.
Improve as another kind, also comprise water pump, described water pump is located between the 3rd filtering basin and pond, center.
Improve as another kind, described temperature control unit comprises temperature controller, heating rod and cooling-water machine, described temperature controller connects respectively and outputs control signals to heating rod and cooling-water machine, and described heating rod is located in peroxidation sterilization pool, and the water outlet of described cooling-water machine is located in peroxidation sterilization pool.
As further improvement, described temperature controller is the GSM temperature controller with dial telephone system warning function.
Beneficial effect: the circulating water treatment device for hatch fish roe provided by the invention adopts modern water treatment engineering technology and intellectualized technology, by carrying out the measures such as cascade filtration, the biochemical water treatment of aerobic, peroxidation water treatment and uv sterilisation to Spawning water, thus water quality and disease and pest can be controlled comprehensively, stable excellent incubation condition can be created, saving water resource, reduce costs, easy to use, hatching rate is high, is applicable to the hatch fish roe of fresh water and seawater.
Specifically, the present invention, relative to prior art, has following outstanding advantage:
1. little, rationally distributed, the convenient management of this equipment volume: this equipment is divided into low level biochemical water treatment device, high-order peroxidation water treatment device, the former is by primary responsibility process pollutent, the sterilization of the latter's primary responsibility and elimination metabolite residue, have complementary functions up and down, comprehensive ensure that stable, high-quality, aseptic water quality and current are unimpeded.
2. this equipment comprises low level biochemical water treatment device, adopt comprehensive biochemical water technology, comprise nitrification and denitrification process, thus the objectionable impurities such as the protein can more effectively removed in pending water and ammonia nitrogen, more effectively remove nitrated refuse, avoid the nitrite of enrichment and nitrate to the injury of fish embryo.
3. this equipment comprises high-order peroxidation water treatment device, for there is metabolite residue and the inextirpable defect of disease and pest in prior art, adopt peroxidation water technology first, water quality can not only be improved further, and the objectionable impuritiess such as hatching enzyme in the water after various biochemical treatment can be removed, eradicate residual protozoon, water mo(u)ld and other microbial pathogenes, thus ensure that the water quality of Spawning water.
4. the high-order peroxidation water treatment device of this equipment, can, by the measure of enforcement intelligent management, to reference mark most important between the incubation period, as water temperature, water level and dissolved oxygen, carry out monitoring and optimum management; Adopt GSM temperature controller to implement strict control to the most important temperature of hatching simultaneously, and realize automatization telephone call, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the circulating water treatment device of hatch fish roe.
Fig. 2 adopts different condition on the impact of hilsa herring hatchability of fertile eggs.
Embodiment
Below in conjunction with accompanying drawing the present invention made and further illustrating.
For the circulating water treatment device of hatch fish roe, see Fig. 1, comprise pond, center 1, low level biochemical water treatment device, high-order peroxidation water treatment device 4; Low level biochemical water treatment device comprises upper water treatment unit 2 and lower layer of water treatment unit 3; Upper water treatment unit 2 comprises the first filtering basin 21, first aeration nitrification tank 22, first anti-nitration reaction pond 23 and the tank 24 connected successively, first filtering basin 21 are connected with pond, center 1 respectively with the first tank 24, are provided with the first airlift pump 25 between the first tank 24 and pond, center 1; Lower layer of water treatment unit 3 comprises the second filtering basin 31, second aeration nitrification tank 32, second anti-nitration reaction pond 33 and the second tank 34 connected successively, second filtering basin 31 are connected with the middle pit of the stomach 36 bottom pond, center, second tank 34 is connected with pond, center 1, is provided with the second airlift pump 35 between the second tank 34 and pond, center 1; High-order peroxidation water treatment device 4 comprises the 3rd filtering basin 41 and peroxidation sterilization pool 42 that connect successively, aeration ring 43, ultraviolet lamp 44, hydrogen peroxide throwing device 45 and temperature control unit 46 is provided with in peroxidation sterilization pool 42,3rd filtering basin 41 are connected with pond, center 1, be provided with water pump 40 between 3rd filtering basin 41 and pond, center 1, the rising pipe on peroxidation sterilization pool 42 is connected with hatching apparatus 5; Peroxidation sterilization pool 42 top is also provided with overflow pipe 50.
Temperature control unit 46 comprises temperature controller 47, heating rod 48 and cooling-water machine 49, temperature controller 47 connects respectively and outputs control signals to heating rod 48 and cooling-water machine 49, heating rod 48 is located in peroxidation sterilization pool 42, the water outlet of cooling-water machine 49 is located in peroxidation sterilization pool 42, and temperature controller 47 is for having the GSM temperature controller of dial telephone system warning function.
The filtering materials such as filter cotton can be filled with in first filtering basin 21; The filtering materials such as filter cotton can be filled with in second filtering basin 31; Polyethylene Particles is filled with in first aeration nitrification tank 22; Polyethylene Particles is filled with in second aeration nitrification tank 32; PHA filtrate is filled with in first anti-nitration reaction pond 23; PHA filtrate is filled with in second anti-nitration reaction pond 33.
The principle of work of this equipment is:
Low level biochemical water treatment device comprises upper water treatment unit 2 and lower layer of water treatment unit 3, and wherein, upper water treatment unit 2 is to purify soluble pollutants, and lower layer of water treatment unit 3 is to process solid waste.
In upper water treatment unit 2, the upper water in pond, center 1 enters the first filtering basin 21 inner filtration; Clear water through filtering flows in the first aeration nitrification tank 22, removes the ammonia nitrogen in water and CO in the first aeration nitrification tank 22
2; Specifically, aeration tube is provided with in the bottom of the first aeration nitrification tank 22, from the effect of the microbubble of aeration tube spilling, protein in water forms foam overflow above water layer, under the condition of oxygen enrichment, the Polyethylene Particles of filling in the first aeration nitrification tank 22 seethes, at the Surface Creation microbial film of its particulate in water, through nitrification, poisonous mineralized nitrogen is become nitrate; Denitrification process in the first anti-nitration reaction pond 23 that the water of nitration treatment flows into without aeration again, nitrate transformation is become N by the PHA filtrate be namely filled with in the first anti-nitration reaction pond 23
2gas is discharged; Water through denitrification process enters the first tank 24 again, and gets back in pond, center 1, by aeration tube 11 oxygenation by the first airlift pump 25 water lift.The internal circulating load of upper water is generally 40 ~ 90% of water treatment global cycle amount.
In lower layer of water treatment unit 3, the bottom water in pond, center 1 enters the second filtering basin 31 inner filtration by the middle pit of the stomach 36; Clear water through filtering flows in the second aeration nitrification tank 32 removes ammonia nitrogen in water and CO
2; Specifically, aeration tube is provided with in the bottom of the second aeration nitrification tank 32, from the effect of the microbubble of aeration tube spilling, protein in water forms foam overflow above water layer, under the condition of oxygen enrichment, the Polyethylene Particles of filling in the second aeration nitrification tank 32 seethes, at the Surface Creation microbial film of its particulate in water, through nitrification, poisonous mineralized nitrogen is become nitrate; Denitrification process in the second anti-nitration reaction pond 33 that the water of nitration treatment flows into without aeration again, nitrate transformation is become N by the PHA filtrate be namely filled with in the second anti-nitration reaction pond 33
2gas is discharged; Water through denitrification process enters in the second tank 34, and gets back in pond, center 1, by aeration tube 11 oxygenation by the second airlift pump 35 water lift.The internal circulating load of lower layer of water is generally 10 ~ 60% of water treatment global cycle amount.
In high-order peroxidation water treatment device 4, the water after upper water treatment unit 2 and/or lower layer of water treatment unit 3 process is promoted to after the 3rd filtering basin 41 inner filtration through the 3rd lift pump 40, flows in peroxidation sterilization pool 42; In peroxidation sterilization pool 42, drop into hydrogen peroxide by hydrogen peroxide throwing device 45 and control hydrogen peroxide concentration at 0.2 ~ 8.0mg/l, process 30 minutes ~ 5 hours under the peroxidation condition that ultraviolet and hydrogen peroxide acting in conjunction are formed, aeration ring 43 aeration aerating simultaneously, thus kill various microorganism and protozoon, remove remaining pollutent; Temperature control unit 46 is also provided with in peroxidation sterilization pool 42, wherein, temperature controller can select the GSM temperature controller of dial telephone system warning function, when temperature is lower than design temperature, heated by heating rod 48, when temperature is higher than design temperature, cooling-water machine 49 is started working and is pumped into by cold water in peroxidation sterilization pool 42, when temperature exceedes critical temperature, temperature controller 47 dial telephone system notice can set working telephone; Too much water can flow out from overflow pipe 50, thus reaches the object of controlling water level.
Our research shows, in the circulating water system of 25 cubic metres of hatching hilsa herring fish-eggs, between three months incubation periods, than open Lotic hatching method water saving 36.2%, and economize on electricity 25.8%; Water quality is comparatively stable, and water temperature variation range is 17.6 ~ 18.4 DEG C, and dissolved oxygen content is 5.1 ~ 6.6mg/l, and ammonia-nitrogen content is lower than 0.017mg/l.As can be seen from Figure 2, the hatching rate of peroxidation on hilsa herring zygote of ultraviolet and hydrogen peroxide combination has significant impact (wherein, control group is for adopting tap water hatching, and UV is for adopting disinfection by ultraviolet light group, UV+H
2o
2for adopting ultraviolet and hydrogen peroxide combination peroxidation group), result shows, UV+H
2o
2the hatching rate of peroxidation treatment group improves 33.4%.
Claims (4)
1. for a cycle aqueous cleaning processing unit for hatch fish roe, it is characterized in that: comprise pond, center (1), low level biochemical water treatment device and high-order peroxidation water treatment device (4); Described low level biochemical water treatment device comprises upper water treatment unit (2) and lower layer of water treatment unit (3); Described upper water treatment unit (2) comprise connect successively the first filtering basin (21), the first aeration nitrification tank (22), the first anti-nitration reaction pond (23) and tank (24), the first filtering basin (21) are connected with pond, center (1) respectively with the first tank (24); Described lower layer of water treatment unit (3) comprise connect successively the second filtering basin (31), the second aeration nitrification tank (32), the second anti-nitration reaction pond (33) and the second tank (34), the second filtering basin (31) are connected with pond, center (1) respectively with the second tank (34); Described high-order peroxidation water treatment device (4) comprises the 3rd filtering basin (41) and peroxidation sterilization pool (42) that connect successively, aeration ring (43), ultraviolet lamp (44), hydrogen peroxide throwing device (45) and temperature control unit (46) is provided with in described peroxidation sterilization pool (42), described 3rd filtering basin (41) are connected with pond, center (1), and described peroxidation sterilization pool (42) is provided with rising pipe; Described temperature control unit (46) comprises temperature controller (47), heating rod (48) and cooling-water machine (49), described temperature controller (47) connects respectively and outputs control signals to heating rod (48) and cooling-water machine (49), described heating rod (48) is located in peroxidation sterilization pool (42), and the water outlet of described cooling-water machine (49) is located in peroxidation sterilization pool (42).
2. a kind of cycle aqueous cleaning processing unit for hatch fish roe according to claim 1, it is characterized in that: also comprise the first airlift pump (25) and the second airlift pump (35), described first airlift pump (25) is located between the first tank (24) and pond, center (1), and described second airlift pump (35) is located between the second tank (34) and pond, center (1).
3. a kind of cycle aqueous cleaning processing unit for hatch fish roe according to claim 1, it is characterized in that: also comprise water pump (40), described water pump (40) is located between the 3rd filtering basin (41) and pond, center (1).
4. a kind of cycle aqueous cleaning processing unit for hatch fish roe according to claim 1, is characterized in that: described temperature controller (47) is for having the GSM temperature controller of dial telephone system warning function.
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| CN104150678B (en) * | 2014-05-15 | 2015-08-19 | 浙江海洋学院 | A kind for the treatment of process of nitrogenous organic waste water |
| CN104604784B (en) * | 2015-01-28 | 2017-03-29 | 上海海洋大学 | The circulating water culture system and its using method of a kind of common eel incubating oosperm and larvae cultivation |
| CN110272122B (en) * | 2018-03-17 | 2024-03-08 | 顾向前 | Zero-emission three-group biological filtration system for circulating water culture |
| CN112753622B (en) * | 2020-12-30 | 2022-09-30 | 苏州鱼之源生物科技有限公司 | Method for high-density cultivation of high-quality seedlings of rare fishes |
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| JPH03180131A (en) * | 1989-12-08 | 1991-08-06 | Mitsubishi Electric Corp | Device for rearing |
| CN101933489A (en) * | 2010-08-24 | 2011-01-05 | 刘青华 | Water circulation system and method for breeding marine fishes inland |
| CN202122006U (en) * | 2011-07-13 | 2012-01-25 | 中国水产科学研究院黑龙江水产研究所 | Temperature-controllable hatching and breeding device for fishes in salmonidae |
| CN203582642U (en) * | 2013-11-12 | 2014-05-07 | 苏州依科曼生物农业科技有限公司 | Circulating water treatment equipment for fish egg incubation |
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Effective date of registration: 20160525 Address after: Suzhou City, Jiangsu province 215138 Yangchenghu town Xiangcheng national modern agriculture demonstration garden Patentee after: SUZHOU FISHSEEDS BIOLOGICAL TECHNOLOGY CO., LTD. Address before: 215138 Xiangcheng national modern agricultural demonstration garden, Yangcheng Lake Town, Suzhou City, Jiangsu Province, Suzhou Patentee before: SUZHOU YIKEMAN BIOLOGICAL AGRICULTURE TECHNOLOGY CO., LTD. |