CN203754557U - Marine domestic sewage treatment system based on MBR (membrane bioreactor) method and electrolytic method - Google Patents
Marine domestic sewage treatment system based on MBR (membrane bioreactor) method and electrolytic method Download PDFInfo
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- CN203754557U CN203754557U CN201420056518.2U CN201420056518U CN203754557U CN 203754557 U CN203754557 U CN 203754557U CN 201420056518 U CN201420056518 U CN 201420056518U CN 203754557 U CN203754557 U CN 203754557U
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- treatment system
- equalizing tank
- mbr
- biochemical reaction
- water inlet
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- 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
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Abstract
The utility model provides a marine domestic sewage treatment system based on an MBR (membrane bioreactor) method and an electrolytic method. The marine domestic sewage treatment system comprises an adjusting tank with an electrolyzer, a biochemical reaction tank used for the MBR method and a monitoring device used for monitoring flow. The marine domestic sewage treatment system has the beneficial effects that the treatment system makes up for the problems of insufficient stability and longer restore cycle of the MBR method and can cope with the effects possibly caused by various marine conditions on the MBR method, thus ensuring stable operation of the treatment system in all aspects; the treatment system has high reliability and small volume, can be widely applied to marine platforms and ships, can effectively treat marine domestic sewage, operates stably, can be set with various working modes and has small maintenance workload.
Description
Technical field
The utility model relates to water treatment field, is specifically related to a kind for the treatment of system of the life afloat sewage based on MBR method and electrolytic process.
Background technology
Mainly two large technology for the processing of offshore platform and Sewage from Ships at present: film bioseparation technology (MBR) and electrolytic process.Film bioseparation technology (MBR) is a kind of novel process that bioreaction technology and membrane separation technique are combined, first pollutent in sewage carries out aerobic degradation in bio-reactor, mixed solution in bio-reactor is under the poor effect of film pressure at both sides simultaneously, water sees through film with the small molecules solute that is less than membrane pore size, thereby reach the object of purifying treatment, in the situation of equipment steady running, effluent COD concentration can reach below 30mg/L.But in actual use, due to the severe Working environment in sea, microbic activity is very unstable, often there are a large amount of even all dead phenomenons of microorganism, cause the device cannot steady running, cause treatment effect not up to standard.And the recovery of microorganism needs the time of about one month, the restore cycle is long.In addition, in the time that the situations such as personnel withdraw appear in sea, cannot maintain the continuous water inlet of sewage, now also easily cause the extensive death of microorganism, thereby affect the steady running of device.Electrolytic process is that sanitary sewage and seawater are mixed in proportion, under the effect of battery lead plate, produce the hypochlorite ion with germicidal action, destroy microorganisms cellularstructure, the bacteriums such as the intestinal bacteria in elimination sewage, simultaneously, oxygenolysis under the advanced oxidation effect that organic compound in sewage also produces in electrolysis, in the situation of equipment steady running, outlet COD concentration can reach below 300mg/L.Compare with MBR method, electrolytic process stabilization of equipment performance is good, is not subject to the impact of marine severe working conditions, and does not produce mud, and maintenance workload is little, but its outlet COD index is higher than MBR method.
Utility model content
For overcoming the defects such as unstable, maintenance time that the MBR method of existing life afloat sewage disposal exists is long, the purpose of this utility model is to provide a kind of life afloat Sewage treatment systems based on MBR method and electrolytic process.
The treatment system that the utility model provides comprises:
Equalizing tank, it is connected with life afloat sewage water inlet pipe line and seawater back with water inlet line, is provided with electrolyzer and shredding unit in described equalizing tank, and described shredding unit is connected with equalizing tank vent line;
Biochemical reaction tank, it is connected with the Graceful water pipeline of processing rear clear water for discharging, in described biochemical reaction tank, raise and train microorganism and be provided with one or more groups MBR membrane module, described biochemical reaction tank is also connected with for throwing in nutraceutical filling pocket to described microorganism, and described biochemical reaction tank is connected by equalizing tank water outlet pipeline with described equalizing tank; And
Flow monitoring device, it is arranged on described life afloat sewage water inlet pipe line.
Wherein, described biochemical reaction tank is arranged on described equalizing tank.
Wherein, on described life afloat sewage water inlet pipe line, seawater back with water inlet line, equalizing tank water outlet pipeline, Graceful water pipeline, equalizing tank vent line and filling pocket, be respectively arranged with control valve.
Wherein, described treatment system also comprises the control device for adjust flux, and it is connected with described control valve.
Wherein, described flow monitoring device is under meter.
Wherein, on described seawater back with water inlet line and Graceful water pipeline, be provided with flow monitoring device.
Wherein, described flow monitoring device is under meter.
Treatment system of the present utility model is based on MBR and electrolytic process device, under normal operating conditions, utilize MBR method to process sanitary sewage, in the time there is unstable cannot normally work in MBR method, can switch to electrolytic process processes, in the long period that ensures to recover in MBR method, still can carry out necessary processing to sanitary sewage, thereby ensure the water quality of discharge water, made up the difficult problem that MBR method stability deficiency, restore cycle grow.And system of the present utility model also can be tackled the impact that may bring for MBR method in marine multiple situation, has ensured in all directions the steady running for the treatment of system, reliability is high.Treatment system volume of the present utility model is small and exquisite, can be widely used in offshore platform and boats and ships.
Adopt treatment system of the present utility model effectively to process life afloat sewage, system run all right, maintenance workload is little.
brief description of the drawings
Fig. 1 is the schematic diagram for the treatment of system described in the utility model;
Fig. 2 is the partial schematic diagram with the pipeline of control valve in treatment system described in the utility model;
Fig. 3 is the partial schematic diagram with the pipeline of control valve and flow monitoring device in treatment system described in the utility model;
Wherein, description of reference numerals is as follows: 1, equalizing tank; 2, biochemical reaction tank; 3, life afloat sewage water inlet pipe line; 4, electrolyzer; 5, shredding unit; 6, seawater back with water inlet line; 7, equalizing tank vent line; 8, Graceful water pipeline; 9, MBR membrane module; 10, filling pocket; 11, equalizing tank water outlet pipeline; 12, flow monitoring device; 13, control device; 14, lift pump; 15, control valve.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, will be further described below the technical scheme of exemplary embodiment of the present utility model.
An aspect of the present utility model provides a kind of life afloat Sewage treatment systems based on MBR method and electrolytic process, as shown in Figure 1, its main body comprises equalizing tank 1 and biochemical reaction tank 2, equalizing tank 1 is connected with for delivery of the life afloat sewage water inlet pipe line 3 of life afloat sewage and for supplying with the seawater back with water inlet line 6 of seawater, in equalizing tank 1, be provided with electrolyzer 4 and shredding unit 5, shredding unit 5 is connected with the equalizing tank vent line 7 for discharging equalizing tank mud and water.Biochemical reaction tank 2 is connected with the Graceful water pipeline 8 of processing rear clear water for discharging, in biochemical reaction tank 2, raise and train microorganism and be provided with one or more groups MBR membrane module 9, in addition, biochemical reaction tank 2 is also connected with for throw in nutraceutical filling pocket 10 to described microorganism.Biochemical reaction tank 2 is connected by equalizing tank water outlet pipeline 11 with equalizing tank 1.Described treatment system also comprises flow monitoring device 12, and it is arranged on life afloat sewage water inlet pipe line, for monitoring flow wherein.
When above-mentioned treatment system work, pending life afloat sewage is sent in equalizing tank 1 by life afloat sewage water inlet pipe line 3, in equalizing tank 1, carry out being sent in biochemical reaction tank 2 by equalizing tank water outlet pipeline 11 again after sludge settling, after microorganism decomposition and 9 filtrations of MBR membrane module, obtain clear water after treatment successively therein and discharged by Graceful water pipeline 8, in the time that the obvious rising of COD concentration in the effluent quality of Graceful water pipeline does not meet emission standard or finds the extensive death of microorganism, represent that biochemical reaction tank 2 affects and cannot work owing to being subject to marine severe environment, stop to biochemical reaction tank 2 water deliverys, start the electrolyzer 4 in equalizing tank 1, in equalizing tank 1, supply with seawater by seawater back with water inlet line 6, after seawater mixes in equalizing tank 1 with sanitary sewage, through electrolyzer 4, seawater is carried out to electrolysis and produce hypochlorite ion, hypochlorite ion carries out sterilization to sanitary sewage, electrolytic process can produce advanced oxidation effect organism is decomposed, water after treatment discharges by equalizing tank vent line 7, electrolytic process is processed until biochemical reaction tank 2 can restart work.While carrying out water treatment by biochemical reaction tank 2, too much when the sludge quantity in equalizing tank 1, need to discharge sludge treatment, to ensure the steady running of whole treatment system.While discharging mud step, first stop the water outlet of equalizing tank 1 to send into biochemical reaction tank 2, in equalizing tank 1, supply with seawater by seawater back with water inlet line 6, after seawater mixes in equalizing tank 1 with mud, through electrolyzer 4, seawater is carried out to electrolysis and produce hypochlorite ion, hypochlorite ion can carry out sterilization to mud, and electrolytic process can produce advanced oxidation effect organism is decomposed, mud after treatment is discharged through equalizing tank vent line 7 after pulverizing by shredding unit 5.In the time that flow monitoring device 12 monitors in life afloat sewage water inlet pipe line 3 long-time (being generally more than 1 day) without water, start filling pocket 10 and drop into nutrition to maintain the microbic activity in biochemical reaction tank 2 in biochemical reaction tank 2.
Wherein, those of ordinary skill in the art can judge whether biochemical reaction tank can normally work according to marine practical situation, water quality requirement etc., for example, in the time that maritime environment badly causes microorganism Large Scale Death or effluent quality (COD concentration) not to meet marine sewage discharge requirement, can judge that biochemical reaction tank cannot work.
According in treatment system of the present utility model embodiment, be the floor space of saving treatment system, biochemical reaction tank 2 can be arranged on equalizing tank 1, and the water outlet of equalizing tank 1 can be sent in biochemical reaction tank 2 by lift pump 14 devices such as grade.
According in treatment system of the present utility model embodiment, on life afloat sewage water inlet pipe line 3, seawater back with water inlet line 6, equalizing tank vent line 7, Graceful water pipeline 8, filling pocket 10, be respectively arranged with control valve 15, as shown in Figure 2.By the adjusting of control valve, can control flow and the filling pocket charging capacity etc. of sanitary sewage water inlet, seawater water inlet, equalizing tank water outlet, the water outlet of biochemical reaction tank clear water, equalizing tank vent line.The control of flow can, by manual operation control, also can be controlled by control device automatically.
According in treatment system of the present utility model embodiment, the control valve on each pipeline is connected with control device 13 respectively, and control device can be common control device or Controlling System, as computer, PLC, micro-chip etc.
According in treatment system of the present utility model embodiment, flow monitoring device 12 is under meter, and under meter can be the broad varietys such as orifice-plate type, electromagnetic type, ultrasonic type.
According in treatment system of the present utility model embodiment, in Graceful water pipeline 8, seawater back with water inlet line 6, be also provided with flow monitoring device, in order to monitor better flow in the time that system is moved, as shown in Figure 3.Flow monitoring device can be under meter, and under meter can be the broad varietys such as orifice-plate type, electromagnetic type, ultrasonic type.
In above-mentioned treatment system, can set equalizing tank, biochemical reaction tank size, pipeline feed flow, each rating of set, microbe population etc. according to the sewage load of different size (as the sanitary sewage disposal amount of 30 people, 50 people, 80 people, 120 people, 150 people's equal-specifications on offshore platform or boats and ships).
Treatment system of the present utility model is based on MBR method first electrolytic process and MBR method are carried out to combination, and electrolyzer wherein and MBR method equipment (as MBR membrane module etc.) adopt the existing electrolyzer for marine sewage disposal and MBR equipment.As electrolyzer can use the OMINPURE15MX type electrolyzer of SEVERN TRENT DE NORA company of the U.S., this electrolyzer water-quality COD concentration after treatment can reach below 300mg/L, model, the quantity etc. of MBR equipment can be carried out routine selection according to the water yield of required processing, after filtration, effluent COD concentration is controlled to 30mg/L below.
Treatment system of the present utility model is based on MBR subtraction unit, in the time there is unstable cannot normally work in MBR method, can switch to electrolytic process processes, in the long period that ensures to recover in MBR method, still can carry out necessary processing to sanitary sewage, thereby ensure the water quality of discharge water, made up the difficult problem that MBR method stability deficiency, restore cycle grow.And system of the present utility model also can be tackled the impact that may bring for MBR method in marine multiple situation, has ensured in all directions the steady running for the treatment of system, reliability is high.Treatment system volume of the present utility model is small and exquisite, can be widely used in offshore platform and boats and ships.
Although for the utility model is described, preferred embodiment of the present utility model is disclosed, but those skilled in the art is to be understood that, in the case of not departing from the utility model design and scope that claims limit, can make various amendments, interpolation and replacement to the utility model.
Claims (7)
1. the life afloat Sewage treatment systems based on MBR method and electrolytic process, is characterized in that, described treatment system comprises:
Equalizing tank (1), it is connected with life afloat sewage water inlet pipe line (3) and seawater back with water inlet line (6), in described equalizing tank (1), be provided with electrolyzer (4) and shredding unit (5), described shredding unit (5) is connected with equalizing tank vent line (7);
Biochemical reaction tank (2), it is connected with the Graceful water pipeline (8) of processing rear clear water for discharging, in described biochemical reaction tank (2), raise and train microorganism and be provided with one or more groups MBR membrane module (9), described biochemical reaction tank (2) is also connected with for throw in nutraceutical filling pocket (10) to described microorganism, and described biochemical reaction tank (2) is connected by equalizing tank water outlet pipeline (11) with described equalizing tank (1); And
Flow monitoring device (12), it is arranged on described life afloat sewage water inlet pipe line (3).
2. according to the treatment system of claim 1, it is characterized in that, described biochemical reaction tank (2) is arranged on described equalizing tank (1).
3. according to the treatment system of claim 1 or 2, it is characterized in that, on described life afloat sewage water inlet pipe line, seawater back with water inlet line, equalizing tank water outlet pipeline, Graceful water pipeline, equalizing tank vent line and filling pocket, be respectively arranged with control valve.
4. according to the treatment system of claim 3, it is characterized in that, described treatment system also comprises the control device (13) for adjust flux, and it is connected with described control valve.
5. according to the treatment system of claim 1 or 2, it is characterized in that, described flow monitoring device is under meter.
6. according to the treatment system of claim 1 or 2, it is characterized in that, on described seawater back with water inlet line and Graceful water pipeline, be provided with flow monitoring device.
7. according to the treatment system of claim 6, it is characterized in that, described flow monitoring device is under meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056518.2U CN203754557U (en) | 2014-01-29 | 2014-01-29 | Marine domestic sewage treatment system based on MBR (membrane bioreactor) method and electrolytic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056518.2U CN203754557U (en) | 2014-01-29 | 2014-01-29 | Marine domestic sewage treatment system based on MBR (membrane bioreactor) method and electrolytic method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754557U true CN203754557U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056518.2U Withdrawn - After Issue CN203754557U (en) | 2014-01-29 | 2014-01-29 | Marine domestic sewage treatment system based on MBR (membrane bioreactor) method and electrolytic method |
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| CN (1) | CN203754557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771663A (en) * | 2014-01-29 | 2014-05-07 | 中国海洋石油总公司 | Sea living sewage treatment system and treatment method based on MBR ((Membrane Biological Reactor) process and electrolysis process |
| CN104496123A (en) * | 2014-12-24 | 2015-04-08 | 南通大学 | Automatic microalgae sewage treatment control method |
-
2014
- 2014-01-29 CN CN201420056518.2U patent/CN203754557U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771663A (en) * | 2014-01-29 | 2014-05-07 | 中国海洋石油总公司 | Sea living sewage treatment system and treatment method based on MBR ((Membrane Biological Reactor) process and electrolysis process |
| CN103771663B (en) * | 2014-01-29 | 2015-05-27 | 中国海洋石油总公司 | Sea living sewage treatment system and treatment method based on MBR ((Membrane Biological Reactor) process and electrolysis process |
| CN104496123A (en) * | 2014-12-24 | 2015-04-08 | 南通大学 | Automatic microalgae sewage treatment control method |
| CN104496123B (en) * | 2014-12-24 | 2016-03-30 | 南通大学 | A kind of micro-algae is disposed of sewage autocontrol method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20150527 |
|
| RGAV | Abandon patent right to avoid regrant |