CN103004684A - Process for treating circulating water for prawn aquaculture - Google Patents
Process for treating circulating water for prawn aquaculture Download PDFInfo
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- CN103004684A CN103004684A CN2013100191767A CN201310019176A CN103004684A CN 103004684 A CN103004684 A CN 103004684A CN 2013100191767 A CN2013100191767 A CN 2013100191767A CN 201310019176 A CN201310019176 A CN 201310019176A CN 103004684 A CN103004684 A CN 103004684A
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Abstract
The invention discloses a process for treating circulating water for prawn aquaculture, and relates to the technology for treating circulating water for prawn aquaculture. The process is implemented by the aid of an outdoor system for pre-treating the circulating water for prawn aquaculture and an indoor system for treating the circulating water for prawn aquaculture. The process includes an outdoor technology for pre-treating the circulating water for prawn aquaculture and an indoor technology for treating the circulating water for prawn aquaculture. The outdoor technology for pre-treating the circulating water for prawn aquaculture includes performing sedimentation, sterilization and disinfection and activated carbon adsorption for an external water source. The indoor technology for treating the circulating water for prawn aquaculture includes enabling a solid and liquid separating device to remove particles with sizes larger than 100 micrometers and parts of NH<4>-N and NO<2>-N in the circulating water, enabling a backwater pond to adjust the pH (potential of hydrogen) and the temperature of the circulating water, and sterilizing and disinfecting the circulating water; and removing the remaining NH<4>-N and NO<2>-N by means of biological filtration, adding pure oxygen into the circulating water and then filling the circulating water into a prawn aquaculture pond. The process has the advantages that water resources and land resources are saved, and a prawn aquaculture benefit is increased.
Description
Technical field
The present invention relates to circulating water treatment process, especially the prawn culturing circulating water treatment process is applicable to the required circulating water treatment technology of prawn culturing.
Background technology
Prawn is the important cultivation kind of China, occupies very important status in mariculture industry.Along with the fast development of shrimp culture industry, the drawback of current aquaculture model (common pond) manifests gradually: the first, the Penaeus Vannmei industry develops the contradiction with coastal land limited rapidly; The second, the variation of culture of Penaeus vannamei ground overall situation water area condition, the disease incidence of disease of prawn culturing rises year by year.Particularly in the situation of cultivate water environmental deterioration and climatic effect, cause cultured output and quality significantly to descend, 40% deficiency that output can only be met the need of market, and along with the rise cost of land of land price accounts for 23% of prawn income from sales, take Hangzhou Xiaoshan as example, the Xiaoshan has 10.2 ten thousand mu of years of culture of Penaeus vannamei area, 2.2 ten thousand tons of output prawns, only be market demand 20% less than, situation is seriously restricting further developing of culture of Penaeus vannamei industry like this.Therefore, utilize marine biotechnology and Penaeus Vannmei physiological characteristic to solve and improve breeding technique, be that the market demand that the raising prawn is satisfied expanding day in the annual production of China is the culture of Penaeus vannamei technical task that needs to be resolved hurrily, and the efficient cultivation of the cycle water of prawn is exactly well alternative new technology of current breeding technique.
Introduce prawn new varieties to China by Chinese Academy of Sciences's ocean from the U.S. from the nineties in last century, and in succession broken through since total man worker's raising technology and the intensive diseases prevention cultivation, become a kind with fastest developing speed in the Chinese marine cultured animal, Penaeus Vannmei output had reached 130.3 ten thousand tons of half of the country that almost account for global prawn output in 2009.In recent years along with in the world for the further anxiety of the limit casting of high concentration nitrite waste water of shrimp breeding ground resource, intensive efficient aquaculture model has become the inevitable direction of prawn industry development.Particularly in the success of the three-dimensional intensive culture of U.S. Lawrence professor Penaeus Vannmei high density last year, for cultivating, the Penaeus Vannmei high-efficiency intensifying opened up the beginning.And domestic prawn industrial circulating water cultivating system also is in the starting exploratory stage, and is that all right forms the efficient breeding technique of the reliable prawn cycle water of cover.Present domestic shrimp ecosystem has all just been used some facilities, as, the technological facilities such as particle rotary-splitting filtering, the oxygenation of low energy consumption pure oxygen and moving bed biological processing.So the efficient cultivating system of domestic prawn cycle water or a Newly Sprouted Things, but it is improving the prawn culturing economic benefit, reduces energy consumption, improve that the soil utilizes availability and the superior efficacy that improves on the aspect problems such as load capacity of unit of water body prawn culturing is apparent.
Summary of the invention
Task of the present invention is to overcome the prior art shortcoming, a kind of efficient, green, saving water resource is provided, economizes the land resource, be not subjected to the prawn culturing circulating water treatment process of season and environmental influence.
The prawn culturing circulating water treatment process, mainly comprise outdoor prawn culturing water pretreatment system 1 and indoor prawn culturing circular water treating system 2 two large divisions, outdoor prawn culturing water pretreatment technique comprises: external water source 4 is through the laggard equipment for separating liquid from solid 7 that enters in the indoor prawn culturing circular water treating system 2 of sedimentation basin 3 precipitation, ozone sterilization sterilization 5 and charcoal absorption 6 residual gas and harmful heavy metal; Indoor prawn culturing circulating water treatment process comprises: the suspended particulate and the part NH that remove particle diameter＞100um through equipment for separating liquid from solid 7
4-N, NO
2-N, the suspended particulate of removal and part NH
4-N, NO
2-N discharges outdoor through sewage well 8; Water after equipment for separating liquid from solid 7 is processed enters back pool 10, passes through to remove CO in back pool 10
2Regulate pH, regulate simultaneously water temperature, and by ozone sterilization sterilization 9; The water of processing through back pool 10 carries out NH through water circulating pump 12 extractings to biofiltration device 11
4-N, NO
2The biofiltration of-N adds pure oxygen 13 simultaneously, and the water after processing through biofiltration device 11 directly enters shrimp culture pond 16; According to shrimp culture pond 16 water quality condition needs, can implement emergent oxygenase-1 7, keep shrimp culture pond 16 interior dissolved oxygen amount＞5mg/L; The impurity such as the sewage of shrimp culture pond 16, shrimp shell are crossed through the shrimp screen pack 15 of living and are entered water level control well 14, and the power that the water-head by water level control well 14 and shrimp culture pond 15 produces makes the impurity such as sewage, shrimp shell enter equipment for separating liquid from solid 7 and processes.
Beneficial effect of the present invention is mainly manifested in:
1, economizes the land resource.Utilize cycle water facility cultivation single cropping per mu yield with respect to 10 to 15 times of common pond per mu yield.
2, saving water resource.There is not the exchange with the external world in water body in the circulating water cultivation process, has reduced the waste of water resource, improves water use efficiency and reaches more than 99%.
3, improve unit of water body output more than 20 times, year soil per mu yield value reaches the economic benefit about 1,000,000 yuan.
4, use ecological mode to process harmful substance regulating water quality in the water, realize that Product Green is nuisanceless.
5, realize various halobiontic bionical cultivation, also provide the technological facilities platform for fresh water area and landlocked prawn parent cultivation.
Description of drawings
The prawn culturing circulating water treatment process as shown in Figure 1.The outdoor prawn culturing water pretreatment system of 1-wherein, the indoor prawn circular water treating system of 2-, 3-sedimentation basin, the 4-external water source, 5-sterilizing, 6-charcoal absorption, the 7-equipment for separating liquid from solid, the 8-sewage well, 9-regulates pH, heats, sterilizing, the 10-back pool, 11-biofiltration device, 12-water circulating pump, the 13-pure oxygen, 14-water level control well, 15-shrimp screen pack alive, 16-shrimp culture pond, the 17-oxygenation of meeting an urgent need.
Embodiment
Fig. 1 is one embodiment of the present of invention.Embodiment of the present invention are as shown in Figure 1: the prawn culturing circulating water treatment process, mainly comprise outdoor prawn culturing water pretreatment system 1 and indoor prawn culturing circular water treating system 2 two large divisions, outdoor prawn culturing water pretreatment technique comprises: external water source 4 is through the laggard equipment for separating liquid from solid 7 that enters in the indoor prawn culturing circular water treating system 2 of sedimentation basin 3 precipitation, ozone sterilization sterilization 5 and charcoal absorption 6 residual gas and harmful heavy metal; Indoor prawn culturing circulating water treatment process comprises: the suspended particulate and the part NH that remove particle diameter＞100um through equipment for separating liquid from solid 7
4-N, NO
2-N, the suspended particulate of removal and part NH
4-N, NO
2-N discharges outdoor through sewage well 8; Water after equipment for separating liquid from solid 7 is processed enters back pool 10, passes through to remove CO in back pool 10
2Regulate pH, regulate simultaneously water temperature, and by ozone sterilization sterilization 9; The water of processing through back pool 10 carries out NH through water circulating pump 12 extractings to biofiltration device
4-N, NO
2The biofiltration 11 of-N adds pure oxygen 13 simultaneously, and the water after processing through biofiltration device 11 directly enters shrimp culture pond 16; According to shrimp culture pond 16 water quality condition needs, can implement emergent oxygenase-1 7, keep shrimp culture pond 16 interior dissolved oxygen amount 〉=6mg/L; The impurity such as the sewage of shrimp culture pond 16, shrimp shell are crossed through the shrimp screen pack 15 of living and are entered water level control well 14, and each shrimp culture pond 16 moisture storage capacity keeps 600M
3, the power that the water-head by water level control well and shrimp culture pond 16 produces makes the impurity such as sewage, shrimp shell enter equipment for separating liquid from solid 7 and processes.
Utilize this technique to carry out the cultivation of Penaeus Vannmei, shrimp culture pond water 16 dissolved oxygen amounts remain on＞6mg/L NH
4-N concentration and NO
2-N concentration all is controlled at below the 0.2mg/L, and through 80 days cultivation, load capacity reached 5kg/m
3
Utilize this technique to carry out the freshwater aquiculture of Chinese prawn, shrimp culture pond 16 water-soluble oxygen amounts remain on＞more than the 5mg/L, NH
4-N concentration and NO
2-N concentration all is controlled at below the 0.2mg/L, and through 95 days cultivation, load capacity reached 5.2kg/m
3
Claims (3)
1. prawn culturing circulating water treatment process, mainly comprise outdoor prawn culturing water pretreatment system and indoor prawn culturing circular water treating system two large divisions, its principal character is that outdoor prawn culturing water pretreatment technique comprises: external water source is through the laggard equipment for separating liquid from solid that enters in the indoor prawn culturing circular water treating system of sedimentation basin precipitation, ozone sterilization sterilization and charcoal absorption residual gas and harmful heavy metal; Indoor prawn culturing circulating water treatment process comprises: the suspended particulate and the part NH that remove particle diameter＞100um through equipment for separating liquid from solid
4-N, NO
2-N, the suspended particulate of removal and part NH
4-N, NO
2-N discharges outdoor through sewage well; Water after equipment for separating liquid from solid is processed enters back pool, passes through to remove CO in back pool
2Regulate pH, regulate simultaneously water temperature, and sterilize by ozone sterilization; The water of processing through back pool carries out NH through water circulating pump extracting to biofiltration device
4-N, NO
2The biofiltration of-N adds pure oxygen simultaneously, and the water after processing through biofiltration device directly enters shrimp culture pond; According to shrimp culture pond water quality condition needs, can implement emergent oxygenation, keep dissolved oxygen amount＞5mg/L in the shrimp culture pond; The impurity such as the sewage of shrimp culture pond, shrimp shell are crossed through the shrimp screen pack of living and are entered the water level control well, and the power that the water-head by water level control well and shrimp culture pond produces makes the impurity such as sewage, shrimp shell enter the equipment for separating liquid from solid processing.
2. described prawn culturing circulating water treatment process according to claim 1, the used filtering material of biofiltration device is quartz, elastic filler, plastic grain etc.
3. described prawn culturing circulating water treatment process according to claim 1, shrimp culture pond control NH
4-N concentration and NO
2-N concentration all remains on＜0.2mg/L.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445809A (en) * | 2014-11-07 | 2015-03-25 | 盐城工学院 | Prawn farming circulating water treatment technology |
| CN104542381A (en) * | 2014-12-22 | 2015-04-29 | 杭州萧山东海养殖有限责任公司 | Industrial circulating water shrimp culturing method capable of increasing efficiency |
| CN104542380A (en) * | 2014-12-22 | 2015-04-29 | 杭州萧山东海养殖有限责任公司 | Shrimp culture method combining industrial circulation water pools and outdoor pools |
| CN105084601A (en) * | 2015-08-31 | 2015-11-25 | 青岛海之源智能技术有限公司 | River water pretreatment device |
| CN105236633A (en) * | 2015-09-30 | 2016-01-13 | 海南卓海水产种苗有限公司 | Processing method of water for breeding young prawns |
| CN105481127A (en) * | 2016-01-05 | 2016-04-13 | 浙江大学 | System for treating cultivation recycled-water through electrolysis-ultraviolet combination |
| CN105557608A (en) * | 2015-12-21 | 2016-05-11 | 同济大学 | Aquatic animal toxicology experiment system and application |
| CN105613389A (en) * | 2016-03-11 | 2016-06-01 | 武汉康立斯科技发展有限公司 | Prawn culture system |
| CN105638515A (en) * | 2014-11-12 | 2016-06-08 | 天津市滨海新区塘沽金岛养殖有限公司 | Ecological cycling freshwater aquaculture method |
| CN106069891A (en) * | 2016-06-13 | 2016-11-09 | 莆田秀屿区群韬农业技术开发有限公司 | A kind of cyclic culture method of prawn |
| CN106495397A (en) * | 2016-11-16 | 2017-03-15 | 防城港市鑫润养殖有限公司 | A kind of Penaeus seu panulirus cultivating pool tail water processing cycle system |
| CN106565038A (en) * | 2016-11-16 | 2017-04-19 | 防城港市鑫润养殖有限公司 | Sea shrimp breeding circulating water processing technology |
| CN109220963A (en) * | 2018-10-10 | 2019-01-18 | 浙江大学 | A kind of three sections of stagewise aquaculture systems |
| CN114766422A (en) * | 2022-05-06 | 2022-07-22 | 宁波大学 | Using method of automatic circulating water supply system for penaeus vannamei boone cultivation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104445809A (en) * | 2014-11-07 | 2015-03-25 | 盐城工学院 | Prawn farming circulating water treatment technology |
| CN105638515A (en) * | 2014-11-12 | 2016-06-08 | 天津市滨海新区塘沽金岛养殖有限公司 | Ecological cycling freshwater aquaculture method |
| CN105638515B (en) * | 2014-11-12 | 2019-03-29 | 天津市滨海新区塘沽金岛养殖有限公司 | A kind of ecological circulation freshwater aquaculture method |
| CN104542381A (en) * | 2014-12-22 | 2015-04-29 | 杭州萧山东海养殖有限责任公司 | Industrial circulating water shrimp culturing method capable of increasing efficiency |
| CN104542380A (en) * | 2014-12-22 | 2015-04-29 | 杭州萧山东海养殖有限责任公司 | Shrimp culture method combining industrial circulation water pools and outdoor pools |
| CN105084601A (en) * | 2015-08-31 | 2015-11-25 | 青岛海之源智能技术有限公司 | River water pretreatment device |
| CN105084601B (en) * | 2015-08-31 | 2017-03-01 | 内乡县水利局 | River pretreatment unit |
| CN105236633A (en) * | 2015-09-30 | 2016-01-13 | 海南卓海水产种苗有限公司 | Processing method of water for breeding young prawns |
| CN105557608A (en) * | 2015-12-21 | 2016-05-11 | 同济大学 | Aquatic animal toxicology experiment system and application |
| CN105557608B (en) * | 2015-12-21 | 2019-02-01 | 同济大学 | A kind of aquatic animal toxicological experiment system and application |
| CN105481127A (en) * | 2016-01-05 | 2016-04-13 | 浙江大学 | System for treating cultivation recycled-water through electrolysis-ultraviolet combination |
| CN105613389A (en) * | 2016-03-11 | 2016-06-01 | 武汉康立斯科技发展有限公司 | Prawn culture system |
| CN105613389B (en) * | 2016-03-11 | 2018-10-02 | 武汉康立斯科技发展有限公司 | A kind of shrimp ecosystem |
| CN106069891A (en) * | 2016-06-13 | 2016-11-09 | 莆田秀屿区群韬农业技术开发有限公司 | A kind of cyclic culture method of prawn |
| CN106495397A (en) * | 2016-11-16 | 2017-03-15 | 防城港市鑫润养殖有限公司 | A kind of Penaeus seu panulirus cultivating pool tail water processing cycle system |
| CN106565038A (en) * | 2016-11-16 | 2017-04-19 | 防城港市鑫润养殖有限公司 | Sea shrimp breeding circulating water processing technology |
| CN109220963A (en) * | 2018-10-10 | 2019-01-18 | 浙江大学 | A kind of three sections of stagewise aquaculture systems |
| CN114766422A (en) * | 2022-05-06 | 2022-07-22 | 宁波大学 | Using method of automatic circulating water supply system for penaeus vannamei boone cultivation |
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Application publication date: 20130403 |