CN202201774U - Cultivation sea water treating system - Google Patents
Cultivation sea water treating system Download PDFInfo
- Publication number
- CN202201774U CN202201774U CN2011203164838U CN201120316483U CN202201774U CN 202201774 U CN202201774 U CN 202201774U CN 2011203164838 U CN2011203164838 U CN 2011203164838U CN 201120316483 U CN201120316483 U CN 201120316483U CN 202201774 U CN202201774 U CN 202201774U
- Authority
- CN
- China
- Prior art keywords
- unit
- membrane
- treatment system
- seawater treatment
- breeding seawater
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a cultivation sea water treating system. The cultivation sea water treating system comprises a sea water pump, a pre-treatment unit, a microfiltration/ultrafiltration membrane filtration unit, a pipeline type liquid delivery pump, a membrane method bubble-free oxygenating unit and an ultraviolet sterilization unit which are sequentially connected in series by a pipeline, as well as a chemical agent adding device and an oxygen supply device which is connected with the gas phase inlet of the membrane method bubble-free oxygenating unit, wherein the chemical agent adding device is arranged on a sterilization water pipeline between the ultraviolet sterilization unit and a cultivation pond. The microfiltration/ultrafiltration membrane filtration unit also can further comprise one type or a plurality of types of combination of an aerator, a sewage draining opening, a membrane cleaning device and a PLC (Programmable Logic Controller) integrated automation control system. The method or the system provided by the utility model is simple to operate and easy to realize automation; and by treating the cultivation sea water or cultivation circulating waste water by the cultivation sea water treating system, stable and high-quality cultivation sea water can be obtained.
Description
Technical field
The utility model belongs to water-treatment technology field, is specifically related to a kind of water treatment system that is applied to the batch production sea farming.
Background technology
Marine Environmental Pollution, seawater quality worsen the sea farming industry that threatened.The batch production sea farming can be evaded the harm that thus fish is produced to a great extent, and this mainly has benefited from the control of its water treatment system to seawater quality.The dry point of batch production sea farming water feeding system is located at mostly and closes on seashore.Because the offshore sea waters is influenced obviously by littoral human activity, land-sourced pollutant discharges in a large number, the port pollution thing discharges and oil spill etc. causes variation water quality bigger, and part marine site " red tide " takes place frequently, and causes the brine disposal difficulty to strengthen.
At present; Batch production sea farming water treatment system; Generally comprise settling tank, mechanical filter equipment (like (sand filtration, ceramic filter, cloth bag filtration etc.), the gentle stone oxygen-increasing device of ozone sterilization device, to former seawater clarify, filter, sterilization, oxygenation to be to satisfy the requirement of industrialized aquaculture water.But mechanical filter produces water influenced obviously by source water, and variation water quality is bigger, and mikrobes such as bacterium, virus are difficult removes, especially to vibrios control weak effect; Though ozone sterilization generally adopts in sea farming is produced, in case natural organic matter too high levels in the seawater, the seawater behind ozonization will produce by products such as haloform; Cause poisonings such as fishes and shrimps; Therefore, need strict control ozone injected volume, disinfecting time and air distribution head aperture, will guarantee simultaneously to flow into after ozone degradation fully in the seawater and culture the pond; Adopt ozone sterilization device, its processing condition require high; Adopt the gas masonry be the terminal to the water body delivering oxygen, though technology is simple, oxygen utilization rate is lower, and in aquaculture water skewness, be difficult to realize the breeding seawater high-solubility oxygen.
Problem in view of the existence of mechanical filter equipment; Membrane technique is introduced in the breeding seawater processing just gradually at present; Mainly concentrate on single membrane filtration Research on effect, as Zhang Guoliang etc. (application and the exploration of membrane integrating technique in sea farming. ocean circular, 2001; 20 (3): 72-75) adopt polysulfones, cellulose-acetafolic that the simulated seawater aquaculture wastewater is handled; Investigate membrane filtration processes to removal of microorganisms effect in the simulated water sample, the intestinal bacteria clearance reaches 100% as a result, and the removal of bacteria rate is greater than 90%; But only have membrane filtration can't guarantee high-quality, stable industrialized culture sea water supply, and above-mentioned institute is not high with the stain resistance of mould material.Therefore need on the prior art basis, carry out organic integration, also innovation, research and develop a kind of efficient, easy-operating breeding seawater treatment system.
The utility model content
The utility model overcomes above-mentioned deficiency, and a kind of industrialized aquaculture brine disposal system with characteristics such as simple in structure, easy control, antipollution, effluent quality are good is provided.
A kind of breeding seawater treatment system; Comprise sea-water pump, pretreatment unit, membrane filter unit and ultraviolet sterilization unit; Described pretreatment unit is the combination of one or more strainers of grid, basket filter, lamination strainer, sand-bed filter, accurate filter; Also further comprise embrane method foamless oxygen charging unit, oxygen supply equipment and medicine machine; Said sea-water pump is connected with the inlet of pretreatment unit and said membrane filter unit through pipeline successively; The outlet of said membrane filter unit is connected with the unitary liquid phase of duct type liquid delivery pump and embrane method foamless oxygen charging inlet through pipeline successively, and said oxygen supply equipment enters the mouth through pipeline and the unitary gas phase of said embrane method foamless oxygen charging and is connected, and the unitary liquid phase of said embrane method foamless oxygen charging exports through pipeline and the said ultraviolet unitary inlet of sterilizing and links to each other; Said ultraviolet sterilize unitary outlet through the aqua sterilisa pipe connection to culturing the pond; The outlet of said medicine machine is through pipeline and aqua sterilisa pipe connection, and said membrane filter unit is that cross-current type micro-filtration, ultrafiltration or submerged membrane filter, and the membrane contactor assembly in the said embrane method foamless oxygen charging unit is processed by the hydrophobic hollow fiber film.
In the described preferred implementation of the utility model water treatment system; Membrane filter unit is the submerged membrane filtering unit; It is strong that the submerged membrane filtering unit has raw water quality flexibility, low, the low power consumption and other advantages of system operation pressure, the suitable bigger engineering of water treatment amount; In this embodiment, the submerged membrane filtering unit of the water treatment system of the utility model also further comprises the aerator and the sewage draining exit of bottom, can also further be provided with the film washing unit.The one or more combination of the preferred grid of its mid-early stage pretreatment unit, basket filter and lamination strainer; The membrane module of said submerged membrane filtering unit is preferably processed by pvdf (PVDF), polytetrafluoroethylene (PTFE) tubular fibre or flat sheet membrane.
In another embodiment, membrane filter unit is the cross-flow type membrane filtration unit, this filtering unit less engineering of water treatment amount that suits.In this technical scheme; The membrane filter unit of said water treatment system also further comprises the film washing unit; Filtering film component is preferably processed by polyacrylonitrile (PAN), polysulfones (PS), PVDF, PTFE tubular fibre or rolled film; Be more preferably PS, PVDF hollow-fibre membrane, the preferred 0.01-1.0 μ of pore diameter range m; One or more combination in the preferred grid of pretreatment unit in early stage, basket filter, lamination strainer, sand-bed filter and the accurate filter.
Described embrane method foamless oxygen charging unit, the hydrophobic hollow fiber film is preferably processed by Vestolen PP 7052 (PP), PVDF, PTFE and alloy film, is more preferably PP, PVDF and alloy film thereof.
The utility model also further is equipped with the integrated automatic control system of PLC, forms the automatic control of technology and equipment.The integrated automatic control system of described PLC can be controlled scavenging period, cleaning frequency automatically through pressure signal feedback or time set, realizes the automatic cleaning of pretreatment unit and membrane filter unit; Poor according to the membrane contactor gas-liquid pressure, control oxygenation capacity automatically, obtain required product water dissolution oxygen level; The start-stop of control entire equipment.
The embrane method industrialized culture brine disposal system beneficial effect compared with prior art of the utility model is:
(1) combination of membrane filtration and traditional mechanical straining installation is used, can effectively be removed small suspended substance in the seawater, larger molecular organics, macromolecular colloid, turbidity, pathogenic bacterium, viral micro-organisms etc., can guarantee high-quality and stable water flow quality;
(2) pre-treatment and the membrane filter unit of this utility model employing can be realized automatic physics, matting, in time restorability;
(3) the submerged membrane filtering system in the utility model preferred version is convenient to realize the through engineering approaches application, handles bigger former seawater and the breeding seawater waste water of the water yield, can simplify pretreatment technology, reduces cost of water treatment;
(4) seawater dissolved oxygen concentration is high and stable after the embrane method foamless oxygen charging unit oxygenation of the utility model, helps realizing the high-density sea farming;
(5) the utility model can be realized the MC seawater quality, can improve the protection effect of breed, reduces and uses chemicals contamination;
(6) the utility model preferred embodiment adds the PLC automatic control system, the utility model easily is automated and floor space little.
Description of drawings
Fig. 1 is the utility model breeding seawater treatment system structural representation;
Fig. 2 is a kind of embodiment breeding seawater of the utility model treatment system structural representation;
1 sea-water pump among the figure, 2 pretreatment units, 21 basket filters, 22 lamination strainers; 3 membrane filter units, 31 membrane modules, 32 aerators, 33 membrane filter unit sewage draining exits; 4 embrane method foamless oxygen charging unit, 41 oxygen supply equipments, 5 ultraviolets sterilization unit; 6 aqua sterilisa pipelines, 7 medicine machines, 8 breed ponds, 9 duct type liquid delivery pumps
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model breeding seawater treatment system is described further:
The utility model embrane method industrialized culture brine disposal system comprises sea-water pump 1, pretreatment unit 2, membrane filter unit 3, embrane method foamless oxygen charging unit 4, ultraviolet sterilization unit 5, oxygen supply equipment 41, medicine machine 7 and pipeline.As shown in Figure 1; Sea-water pump 1 links to each other with pretreatment unit 2; The inlet of the outlet of pretreatment unit 2 and membrane filter unit 3 passes through pipe connection; The outlet of said membrane filter unit 3 is connected with the liquid phase inlet of embrane method foamless oxygen charging unit 4 through duct type liquid delivery pump 9 and pipeline, and the gas phase inlet of said embrane method foamless oxygen charging unit 4 is through pipe connection to oxygen supply equipment 41, and the outlet of the liquid phase of said embrane method foamless oxygen charging unit 4 links to each other with ultraviolet sterilization unit 5 inlets; Said ultraviolet sterilization unit 5 outlets are connected with breed pond 8 through aqua sterilisa pipeline 6, and medicine machine 7 passes through pipe connection to sterilization pipeline 6.The utility model principle of work is summarized as follows: former seawater is injected into pretreatment unit 2 through sea-water pump 1 extracting and pressurization and carries out large particulate matter in the pre-treatment removal seawater behind grid filtration; Seawater carries out membrane filtration through pipeline entering membrane filter unit 3 after the pre-treatment; Seawater after the filtration is through duct type liquid delivery pump 9 and unit 4 oxygenations of pipe-line transportation to embrane method foamless oxygen charging and 5 sterilizations of ultraviolet sterilization unit; Water outlet is regulated the pH value to the breed standard via the medicine machine that is provided with on it 7 when aqua sterilisa pipeline 6, import and culture in the pond 8.Wherein, In the utility model treatment system; Described pretreatment unit 2 can be selected corresponding filter equipment according to the situation of water quality treatment, the combination of one or more strainers of preferred basket filter, lamination strainer, sand-bed filter, accurate filter, and said embrane method foamless oxygen charging unit 4 adopts the hydrophobic hollow fiber membrane contactor; Its film contact assembly preferably is made up of PP, PVDF, PTFE and alloy film, is more preferably PP, PVDF and alloy film thereof; Said ultraviolet sterilization unit 5 preferred overflow-type ultraviolet Sterilizerss.
Of Fig. 2 is that a kind of submerged membrane filters the breed water treatment system; In the present embodiment; Membrane filter unit is the immersed microfiltration membrane filter unit, only is with the difference of the described treatment system of Fig. 1: pretreatment unit 2 is the combination of basket filter 21 and lamination strainer 22 in the present embodiment, and promptly sea-water pump 1 links to each other with basket filter 21 through pipeline; Link to each other with said lamination strainer 22 subsequently; The outlet of said lamination strainer 22 links to each other with membrane filter unit 3 through pipeline, lamination strainer 22 is produced water inject in the body of membrane filter unit pond, and the Chi Tizhong of membrane filter unit 3 is equipped with micro-filtration membrane module 31; Micro-filtration membrane module 31 belows are that body bottom, immersion filtering unit 3 pond also is provided with aerator 32 and V-arrangement sewage draining exit 33; In order to improve 31 work-ing lifes of membrane module, the PVDF that the preferred stain resistance of immersed microfiltration membrane module is strong, PTFE tubular fibre or flat sheet membrane, in addition; Said submerged membrane filtering unit 3 can also comprise the film washing unit, with further increase filtering membrane service efficiency and work-ing life.The filter membrane that present embodiment adopts is a curtain formula PVDF hollow fiber microfiltration membrane, membrane pore size 0.2 μ m, and embrane method foamless oxygen charging unit 4 employing membrane pore size are the membrane contactor that the hydrophobic hollow-fibre membrane of PP of 0.1 μ m is processed; The unitary gas-liquid pressure difference of control embrane method foamless oxygen charging is at 0.01MPa; With the former seawater in the Bohai Sea is water inlet, after present embodiment immersion embrane method breeding seawater treatment system is handled, and delivery turbidity 0.15NTU; PH value 8.17; Dissolved oxygen 30.49mg/L, total plate count is 0, effluent quality obviously is superior to the traditional technology water quality treatment.
For the less engineering of water treatment amount; The cross flow filter form membrane filter units that adopt more; The preferred grid of the pretreatment unit of this application form, basket filter, lamination strainer, sand-bed filter and accurate filter combination; Filtering membrane preferably gathers PAN, PS, PVDF, PTFE tubular fibre or rolled film, is more preferably PS, PVDF hollow-fibre membrane, the preferred 0.01-1.0 μ of pore diameter range m; In membrane filter unit, preferably be provided with automatic cleaning system, to improve the service efficiency of membrane module.The membrane module that adopts in the present embodiment is the PVDF hollow fiber ultrafiltration membrane; Membrane pore size 0.02 μ m, embrane method foamless oxygen charging unit adopts the hydrophobic hollow-fibre membrane of 0.1 μ m PP, and the unitary gas-liquid pressure difference of control embrane method foamless oxygen charging is at 0.01MPa; Former seawater is delivery turbidity 0.03NTU after this art breading; PH value 8.21, dissolved oxygen 31.26mg/L, total plate count is 0.
The component devices that the utility model breeding seawater treatment system is used; Realize robotization control easily; Therefore in order to improve the level of automation of native system; The utility model breeding seawater treatment system can further include PLC automatic control system, pipeline and valve etc., forms the automatic control of technology and equipment.Robotization control all can be realized in each unit of the utility model breeding seawater treatment system; Be easy to through the assembling of electronic devices and components and the setting of sequence of control; Starting and stopping with gear; Water production rate is produced water dissolution oxygen and is produced water pH value, and the physics of pretreatment unit and membrane filter unit, matting time, cleaning frequency.Above-mentioned automatic control system can be through the cycle of operation of controlling diaphragm filtering unit, service efficiency and the life-span that frequency guarantees membrane module; Poor according to the unitary gas-liquid pressure of embrane method foamless oxygen charging, control oxygenation capacity automatically, obtain required product water dissolution oxygen level; And, control scavenging period, cleaning frequency automatically through pressure signal feedback or time set, realize the automatic cleaning of pretreatment unit and membrane filter unit.
The utility model can be used for handling former seawater to culturing pond water filling and moisturizing; Also can be used for processing plant's breed recirculated water; Can effectively remove impurity, pathogenic micro-organism in the water, produce water dissolution oxygen level height, water conditioning, high-quality; Satisfy the needs of sea farming, particularly grow seedlings, the situation high such as precious fingerling breed water quality requirement.When being used for processing plant's breed recirculated water; Can this method be used in combination with prior biological embrane method cyclic culture wastewater treatment equipment; The water outlet of biomembrane reaction pond is directly injected the membrane filter unit of the utility model treatment system; Omit pretreatment unit in the utility model, aftertreatment device is constant.Owing to culture recycling waste water LDO, low pH value and attach characteristics such as infective virus mikrobe, sterilize unit and medicine machine of embrane method foamless oxygen charging unit, ultraviolet will be brought into play even more important effect in this treatment system.
More than the description of the utility model is belonged to schematic illustration.For persons skilled in the art; Can be according to the description of this embodiment; Possibly make some change to structure or layout type, like each the unit order of connection or type of attachment, only otherwise break away from the design aim of the utility model; All conspicuous changes and the similar Design with equivalent substitution all are included within the protection domain of the utility model.
Claims (10)
1. breeding seawater treatment system; Comprise sea-water pump, pretreatment unit, membrane filter unit and ultraviolet sterilization unit; It is characterized in that; Also comprise embrane method foamless oxygen charging unit, oxygen supply equipment and medicine machine, said sea-water pump is connected with the inlet of pretreatment unit and said membrane filter unit through pipeline successively, and the outlet of said membrane filter unit is connected with the unitary liquid phase inlet of duct type liquid delivery pump and embrane method foamless oxygen charging through pipeline successively; Said oxygen supply equipment is connected through the unitary gas phase inlet of pipeline and said embrane method foamless oxygen charging; The outlet of the unitary liquid phase of said embrane method foamless oxygen charging links to each other through pipeline and the said ultraviolet unitary inlet of sterilizing, said ultraviolet sterilize unitary outlet through the aqua sterilisa pipe connection to culturing the pond, pipeline and aqua sterilisa pipe connection are passed through in the outlet of said medicine machine; Said membrane filter unit is that cross-current type micro-filtration, ultrafiltration or submerged membrane filter, and said embrane method foamless oxygen charging unit is made up of the hydrophobic hollow fiber membrane contactor.
2. breeding seawater treatment system according to claim 1 is characterized in that, said membrane filter unit is the submerged membrane filtering unit, and said pretreatment unit is one or more the combination in grid, basket filter, the lamination strainer.
3. breeding seawater treatment system according to claim 2 is characterized in that, said pretreatment unit is the combination of basket filter and lamination strainer.
4. breeding seawater treatment system according to claim 2 is characterized in that, the bottom of said submerged membrane filtering unit also further is provided with aerator and sewage draining exit.
5. breeding seawater treatment system according to claim 2 is characterized in that, the membrane module of said submerged membrane filtering unit is processed by pvdf, tetrafluoroethylene tubular fibre or flat sheet membrane.
6. breeding seawater treatment system according to claim 1; It is characterized in that; Described membrane filter unit is the cross-flow type membrane filtration unit, and said pretreatment unit is one or more combination of basket filter, lamination strainer, sand-bed filter and accurate filter.
7. breeding seawater treatment system according to claim 6, the unitary filtering film component of said cross-flow type membrane filtration is processed by polyacrylonitrile, polysulfones, pvdf, tetrafluoroethylene tubular fibre or rolled film.
8. breeding seawater treatment system according to claim 1 is characterized in that, is provided with the film washing unit in the said membrane filter unit.
9. breeding seawater treatment system according to claim 1 is characterized in that, said hydrophobic hollow fiber film is Vestolen PP 7052, pvdf, tetrafluoroethylene or alloy film.
10. breeding seawater treatment system according to claim 1 is characterized in that, said breeding seawater treatment system also comprises the integrated automatic control system of PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203164838U CN202201774U (en) | 2011-08-26 | 2011-08-26 | Cultivation sea water treating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203164838U CN202201774U (en) | 2011-08-26 | 2011-08-26 | Cultivation sea water treating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202201774U true CN202201774U (en) | 2012-04-25 |
Family
ID=45965907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203164838U Expired - Fee Related CN202201774U (en) | 2011-08-26 | 2011-08-26 | Cultivation sea water treating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202201774U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103734067A (en) * | 2013-12-30 | 2014-04-23 | 山东鲁北企业集团总公司 | Automatic water distribution cultivation system with recycled waste heat seawater for culture of special species and water distribution method |
| ITBA20130056A1 (en) * | 2013-07-05 | 2015-01-06 | Steralmar S R L Unipersonale | PROCEDURE FOR THE INDUSTRIAL PRODUCTION OF SEA WATER ALSO SUITABLE FOR FOOD USE |
| CN105543884A (en) * | 2015-12-25 | 2016-05-04 | 成都飞创科技有限公司 | Lemon cleaning water preparing device system |
-
2011
- 2011-08-26 CN CN2011203164838U patent/CN202201774U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBA20130056A1 (en) * | 2013-07-05 | 2015-01-06 | Steralmar S R L Unipersonale | PROCEDURE FOR THE INDUSTRIAL PRODUCTION OF SEA WATER ALSO SUITABLE FOR FOOD USE |
| WO2015001581A3 (en) * | 2013-07-05 | 2015-02-26 | Steralmar Srl | Process for industrial production of sea water basically suitable for food use |
| US10167217B2 (en) | 2013-07-05 | 2019-01-01 | Steralmar Srl | Process for industrial production of sea water basically suitable for food use |
| RU2682638C2 (en) * | 2013-07-05 | 2019-03-19 | Стеральмар Срл | Method for industrial production of sea water suitable for food use |
| CN103734067A (en) * | 2013-12-30 | 2014-04-23 | 山东鲁北企业集团总公司 | Automatic water distribution cultivation system with recycled waste heat seawater for culture of special species and water distribution method |
| CN105543884A (en) * | 2015-12-25 | 2016-05-04 | 成都飞创科技有限公司 | Lemon cleaning water preparing device system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8910799B2 (en) | Integrated membrane system for distributed water treatment | |
| CN102336492A (en) | Membrane process culture seawater treatment method and treatment system thereof | |
| CN104591443B (en) | A kind of recycling equipment of aquaculture agricultural effluent | |
| CN105481164B (en) | A kind of tobacco wastewater treatment process | |
| CN108467162A (en) | Rural domestic sewage treating device | |
| CZ2005564A3 (en) | Method for deep biological purification of waste water and apparatus to implement the same | |
| CN110467322A (en) | Laboratory high concentration comprehensive wastewater handles all-in-one machine | |
| CN207031206U (en) | A kind of indoor mariculture water circulation system | |
| CN1208262C (en) | High concentration oxganic effluent treatment composite process and its equipment | |
| CN204689832U (en) | A kind of naval vessel sanitary sewage disposal and intermediate water reuse system | |
| CN109721210A (en) | A kind of cultivation tail water three-level filter system | |
| CN202201774U (en) | Cultivation sea water treating system | |
| CN104221946A (en) | Closed type aquaculture larval rearing system | |
| CN207726925U (en) | A kind of medical waste water processing system based on membrane bioreactor | |
| CN109730021B (en) | Batch-type double-circulation industrial recirculating aquaculture system | |
| CN209259885U (en) | A kind of integrated sewage treatment device | |
| CN116589145A (en) | System and method for removing ammonia nitrogen in sewage of cultivation fishing boat | |
| CN217016116U (en) | Membrane module automatic cleaning system of marine MBR domestic sewage treatment device | |
| CN206109150U (en) | One -piece type sewage treatment unit of HBNA series | |
| CN209397022U (en) | A kind of high-concentration organic wastewater concentration processing unit | |
| CN203095802U (en) | Island direct drinking water process integrated equipment | |
| CN203692218U (en) | Factory aquaculture device | |
| RU2547498C1 (en) | Physicochemical membrane bioreactor | |
| CN205671271U (en) | A kind of self-cleaning fish bowl of external MBR | |
| CN210406733U (en) | Aquaculture circulating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20180826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |