CN108911284A - A kind of offshore platform sanitary sewage disposal electrolytic method - Google Patents
A kind of offshore platform sanitary sewage disposal electrolytic method Download PDFInfo
- Publication number
- CN108911284A CN108911284A CN201810548606.7A CN201810548606A CN108911284A CN 108911284 A CN108911284 A CN 108911284A CN 201810548606 A CN201810548606 A CN 201810548606A CN 108911284 A CN108911284 A CN 108911284A
- Authority
- CN
- China
- Prior art keywords
- tank
- outlet
- partition
- grade
- sanitary sewage
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of offshore platform sanitary sewage disposal electrolytic methods：Big dregs in sanitary sewage are trapped in the Ith grade of partition tank by sieve, start self-loopa macerator pump, by big dregs granular powder breakdown mill at the particle for passing through partition upper screen cloth structure size, it is emitted into the IIth grade of partition tank, start smashing delivery pump, separating twice grinding is carried out to liquid, is delivered to from clear filter；Filtered impurities accumulation forms " filter cake " in strainer inner surface, and starter motor recycles self-cleaning, drives brush washer structure, opens blowdown valve, and dirt solution is expelled to the IIth grade of partition tank, and filtered solution is through draining into electrolysis electrode outside outlet；Through electrolysis, treated that solution enters cell reaction pond, is aoxidized, sterilized, sterilized；Through cell reaction, treated that solution is delivered to outlet tank is precipitated, and obtains qualified water.Sewage treatment process provided by the invention solves the problems, such as that the dirt of traditional handicraft is stifled, can be very good to be suitable for offshore platform.
Description
Technical field
The invention belongs to sewage treatment fields, and more specifically, it relates to a kind of offshore platform sanitary sewage disposal electrolysis
Method.
Background technique
Modern sewage processing technique is divided by process flow, can be divided into the primary pretreatment of buffering, depth pretreatment, electrolysis
Processing, cell reaction processing and precipitating outlet.
The primary pretreatment of buffering, it is therefore named conceive i.e. have buffering modulating action, be provided simultaneously with the processing of raw sewage contaminant filter and make
With.By filtering, circulation, crushing, precipitating, sterilizing, increase in the physico-chemical process such as electrolytic ion activity removal sewage
Larger suspension solid matter, or by cohesion, oxidation, neutralize etc. chemical methodes, make strong acid, highly basic and the overrich in sewage
Noxious material, obtain preliminary purification, for depth pretreatment suitable condition of water quality is provided.
Depth pretreatment is crushed once again again by macerator pump, while utilizing from clear on the basis of primary pretreated
Filter carries out further advanced treating to sewage.By the further purified treatment of dirty impurities in water, set by time and pressure difference
Set and complete filtered impurities automatic pollution discharge and flow back into buffering pretreatment unit, carry out second-time breakage, filtering, circulation and degradation until
The purpose finally eliminated.It is compared compared with conventional process techniques, pre-processes benefit step by step, dispersed impurity to processing unit load pressure
Power solves dirty plugging technique problem.
Electrolysis processing is also the core part of whole processing technology, internal and external electrode using insoluble titanium as Polar plate matrix,
Active layer is introduced with heat deposition oxidizing process or galvanoplastic.Have many advantages, such as that corrosion resistance, electric conductivity, service life are long, to organic contamination
Object has preferable electrocatalysis characteristic.In electrolytic process, only two kinds of effects of electric floating and electrochemical oxidation, in operational process,
Replacement electrode, operating aspect are not needed.Not only to organic matter degradation efficiency with higher, but also it is also equipped with good electric conductivity
With sufficiently stable chemistry, chemical property.
Cell reaction processing is sufficiently to chemically react stage after being electrolysed, and accommodate electrolyte oxidation, sterilization, disinfection etc. to change
The reaction treatment process for learning mechanism aoxidizes sanitary sewage, is killed by a period of time stopped in cell reaction pond
The series reactions such as bacterium, disinfection.To the last stoste items handle qualified.
The reaction mechanism is as follows in cell reaction pond：
(1) in the presence of chloride ion, electrolysis can obtain the strong oxidizers such as hypochlorite.It is in entire disinfecting process
Main effect has been played by sodium hypochlorite.For lived bacterium and virus, hypochlorous acid penetrates cell wall, aoxidizes it
Enzyme system, (enzyme is biocatalyst), causes it to lose its activity, and keeps the life of bacterium dead by obstacle.
(2) hydroxyl radical free radical, oxygen, hydrogen peroxide for generating in electrolytic process etc. also have good effect to sterilization.
(3) electric field has the function of sterilization, as a result microorganism causes its propagating system to go out because sharply growing in electric field action
Existing defect, fertility reduce.
(4) penetration of electric-field enhancing hydrone makes hydrone easily penetrate the cell wall of microorganism, microorganism or because lacking
Water and it is die of thirst or because excessive water enter it is internal and swollen dead.
But the equipment under the technique of existing sewage-treatment plant, because at all pretreating process is not perfect or does not have
The defect of the manufacturing process of pretreatment process and plate type electrode itself causes existing sewage treatment unit often to occur
Equipment fault caused by being blocked up as dirt.Can not long-time steady operation or equipment export water treatment it is not up to standard.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of offshore platform sanitary sewage disposal
Electrolytic method is able to carry out self-cleaning, avoids causing equipment fault since dirt is stifled, can long-time steady operation, can be improved
The compliance rate of equipment water outlet water quality.It solves the problems, such as that the dirt of traditional handicraft is stifled, can be very good to be suitable for offshore platform, such as
Oil and gas well drilling platform or ship etc..
The purpose of the present invention is what is be achieved through the following technical solutions.
Offshore platform sanitary sewage disposal electrolytic method of the invention, includes the following steps：
Step 1 buffers primary pretreatment：
Sanitary sewage is delivered to the Ith grade of partition tank, and the big dregs in sanitary sewage are trapped in the Ith grade of partition tank by sieve,
Start the circular flow of self-loopa macerator pump at this time, by big dregs granular powder breakdown mill at for passing through partition upper screen cloth structure size
Grain, is emitted into the IIth grade of partition tank, when the liquid level that the IIth grade is separated in tank reaches set point value, starting smashing delivery pump, to liquid
Body carries out separating twice grinding, is delivered to from clear filter；
Step 2, depth pretreatment：
Through the primary pretreated liquid of buffering after from the entrance of the inlet tube of clear filter, carried out by internal screen
Filter, filtered impurities accumulation form " filter cake " in strainer inner surface, with the increase of impurity, between clear filter inlet and outlet
Pressure difference is generated, when the differential reaches a set point, starter motor drives internal brush washer structure, opens blowdown valve, and impurity is molten
Liquid is expelled to the IIth grade of partition tank, forms circulation self-cleaning；Through from the filtered solution of clear strainer screen through outlet outlet
To electrolysis electrode；
Step 3, electrolysis processing：
Through the pretreated solution of depth through the uniform eddy flow of swirl-flow devices enter electrolysis electrode inner and outer electrodes it
Between be electrolysed, in electrolytic process, certain metal oxides are oxidized to high-valence state, then these high-valence state substance deoxidations
Organic matter, high-valence state organic matter is reduced into former valence state species at this time, reaches the mesh of oxidation removal pollutant in cycles in this way
's；Strong oxidizer deoxidation decomposing organic matter is also generated in electrolytic process, the intermediate generated using electrochemical reaction process
Oxidative degradation pollutant；
Step 4, cell reaction processing：
Through electrolysis, treated that solution enters cell reaction pond, is aoxidized, sterilized, sterilized；
Step 5 precipitates outlet：
Through cell reaction, treated that solution is delivered to outlet tank is precipitated, and qualified water is obtained, when liquid level in outlet tank
When reaching setting value, qualified water is conveyed by efflux pump outward.
Sieve described in step 1 will form vertical " filter cake " during the filtration process, and using treated, qualified water is cleaned
Sieve, cleaning process are：Efflux pump stops outlet, and the Ith grade of partition tank level is under partition, and liquid level reaches setting in outlet tank
Value starts output pump, and qualified water that treated is delivered to the spray head in the IIth grade of partition tank from outlet tank, and then carries out to sieve
Cleaning.
Reversion control is carried out to the inner and outer electrodes of electrolysis electrode by PLC control system timing in step 3, is made
Its antipole that is positive.
Seawater is injected in cell reaction pond described in step 4, provides salinity as electrolyte, the cell reaction pond
The reaction mechanism is as follows：
5. in the presence of chloride ion, electrolysis obtain hypochlorite strong oxidizer, be in entire disinfecting process by
Sodium hypochlorite has played main effect；For lived bacterium and virus, hypochlorite penetrates cell wall, aoxidizes it
Enzyme system causes it to lose its activity, and keeps the life of bacterium dead by obstacle；
6. the hydroxyl radical free radical generated in electrolytic process, oxygen, hydrogen peroxide, play bactericidal effect；
7. electric field has the function of sterilization, as a result microorganism leads to its propagating system because of the tachyauxesis under electric field action
There is defect, fertility reduces；
8. the penetration of electric-field enhancing hydrone makes hydrone through the cell wall of microorganism, microorganism or due to water shortage
It is die of thirst or because excessive water enter it is internal and swollen dead.
When the Ith grade of partition tank, the IIth grade of partition tank, from clear filter, electrolysis electrode, cell reaction pond and outlet tank overflow
Shi Jun carries out outlet by overflow passage.
When precipitating has pollutant in the Ith grade of partition tank, the IIth grade of partition tank, electrolysis electrode, cell reaction pond and outlet tank
When, manually-operated gate is opened, starts deslagging pump, passes through the regular outlet of deslagging pipeline.
Salinity is launched to the Ith grade of partition tank by salting device, PLC control system monitors the Ith grade of partition on-line at times
Electrical conductivity of solution in tank and cell reaction pond is balanced according to the monitored conductivity value adjust automatically salting device salt adding amount of feedback
Adjust conductivity in solution.
The hydrogen generated in electrolysis processing and cell reaction treatment process is discharged by the outer arranging device of hydrogen.
Compared with prior art, beneficial effect brought by technical solution of the present invention is：
(1) primary pretreatment stage is being buffered, the Ith grade of partition tank is mainly exactly the work for playing buffering peak period mean value and adjusting
With sanitary sewage carrys out dregs big in liquid and is also mainly trapped in the Ith grade of partition tank, at this moment starts self-loopa macerator pump ceaselessly
Circular flow, by big dregs particle smashing and grinding at can be by the particle of the mesh structure size of partition upper end, through sieve
The IIth grade of partition tank is emitted into after preliminary pretreatment.
(2) it is delivered to through smashing delivery pump from clear filter progress depth through the primary pretreated liquid of buffering and locates in advance
Reason, smashing delivery pump are exactly that will carry out separating twice grinding by the pretreated liquid of primary of buffer cell.
(3) electrolysis electrode includes the cylindric interior electrode and dispatch from foreign news agency being set-located with concentric circular fashion in the present invention
Pole, inner and outer electrodes are all made of insoluble titanium as Polar plate matrix, introduce active layer with heat deposition oxidizing process or galvanoplastic.
Such pole plate has many advantages, such as that corrosion resistance, electric conductivity, service life are long, has preferable electrocatalysis characteristic to organic pollutant.Electricity
In solution preocess, only two kinds of effects of electric floating and electrochemical oxidation in operational process, do not need replacement electrode, operating aspect.Separately
Outer such electrode is also equipped with good electric conductivity and sufficiently stable change not only to organic matter degradation efficiency with higher
It learns, chemical property.
(4) it is arranged radially the blade at several inclination intervals, as swirl-flow devices in lower flange inner edge in the present invention, it can
The flow channel for liquids for flowing into electrolysis electrode is set to be more in line with the characteristics of liquid is hampered into swirl flow.
(5) installation blower keeps the micro-positive pressure of hydrogen outlet process, the connection of blower exhaust outlet on cell reaction pond in the present invention
The outer arranging device of hydrogen in the flow direction of gas is flowed from hyperbar to low pressure, is constantly passed through in the setting of hydrogen discharge mouth dry
Dry instrument supply gas, to guarantee that arranging device exports dry no moisture outside hydrogen.Convenient for the hydrogen being electrolysed and cell reaction generates in the process
The timely emission treatment of the fuel gas such as gas prevents hydrogen convergence from mixing with air arrival explosion limit too much and explodes.
(6) salting device is increased in the present invention, PLC monitoring system is realized molten in the Ith grade of partition tank and cell reaction pond
Liquid conductivity is monitored on-line at times, is balanced according to the salt adding amount of the monitored conductivity value adjust automatically salting device 6 of feedback
Conductivity in solution is adjusted, rationally loads and adjust voltage for electrolysis electrode both ends.
(7) present invention carries out reversion control to electrolysis electrode by the timing of PLC monitoring system, effectively reduce interior electrode with
The accumulation of electrodeposit on external electrode guarantees inner and outer electrodes service life and electrolytic efficiency.
(8) output pump liquid outlet of the present invention is connected with the spray head for cleaning sieve by detergent line, and spray head setting exists
In IIth grade of partition tank, to be cleaned with sudden force in filter cake opposite side to it, self-cleaning function is realized.
Detailed description of the invention
Fig. 1 is the schematic diagram of offshore platform sanitary sewage disposal electrolysis unit of the present invention；
Fig. 2 is in the present invention from the structural schematic diagram of clear filter；
Fig. 3 is the structural schematic diagram of electrolysis electrode in the present invention；
Fig. 4 is the layout drawing of the outer arranging device of hydrogen in the present invention；
Fig. 5 is the principle of the present invention block diagram.
Appended drawing reference:1 the Ith grade of partition tank；2 the IIth grades of partition tanks；3 partitions；4 sieves；5 self-loopa macerator pumps；6 add salt dress
It sets；7 smashing delivery pumps；8 first electromagnetic flow transmitters；9 blowers；The outer arranging device of 10 hydrogen；11 cell reaction ponds；12 outlets
Tank；13 efflux pumps；14 second electromagnetic flow transmitters；15 output pumps；16 deslagging pipelines；17 deslagging pumps；18 overflow passages；19 hands
Movable valve；20 spray heads；21 seawater filling lines；22 check valves；23 instrument supply gas interfaces；24 outer outlets；25 from clear filter；
2501 strainers；2502 inlet tubes；2503 outlets；2504 blowdown valves；2505 motors；2506 brush washer structures；26 electrolysis electricity
Pole；2601 upper flanges；2602 lower flanges；2603 water outlets；2604 external electrodes；Electrode in 2605.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Fig. 1 to 5, offshore platform sanitary sewage disposal electrolysis unit of the invention, including buffer cell, from clear mistake
Filter 25, electrolysis electrode 26, cell reaction pond 11, outlet tank 12 and PLC monitoring system.
The buffer cell includes tank body and self-loopa macerator pump 5, and partition 3 and sieve 4 are vertically arranged in the tank body,
And sieve 4 is vertically arranged at 3 top of partition, and tank body is divided into the Ith grade of partition tank 1 and the IIth grade of partition tank 2.Because of sieve 4
It is defined as tentatively pre-processing, then sieve screen apertures are also configured as biggish aperture, just have the feature of blocking period length, be exactly
Blocking is also that vertical " filter cake " is formed at sieve 4, also just has the such feature of easy cleaning.The self-loopa macerator pump
5 are set to outside tank body, and the inlet and liquid outlet of the self-loopa macerator pump 5 pass through pipeline and the Ith grade of partition tank 1 connects
It is logical, form circulation.
The Ith grade of partition tank 1 is mainly exactly to play the role of buffering the adjusting of peak period mean value, and sanitary sewage comes big in liquid
Dregs be also mainly trapped in the Ith grade of partition tank 1, at this moment start the ceaselessly circular flow of self-loopa macerator pump 5, by big slag
Dregs's particle smashing and grinding by the particle of 4 structure size of sieve of 3 upper end of partition at can be emitted into the IIth grade of partition tank 2.
Be provided with the first fluid level transmitter in the IIth grade of partition tank 2, first fluid level transmitter be provided with high (HH) liquid level,
High three (H) liquid level, low (L) liquid level Liquid level points, wherein tank boil-overs is alarmed when high (HH) liquid level, and when high (H) liquid level starts
Smashing delivery pump 7 stops smashing delivery pump 7 when low (L) liquid level.
The IIth grade of partition tank 2 and there are smashing delivery pump 7, the crushing by piping connection between clear filter 25
For the liquid outlet of delivery pump 7 by inlet tube 2502 of the piping connection from clear filter 25, the inlet of the smashing delivery pump 7 is logical
Piping connection is crossed to the IIth grade of partition 2 bottom of tank.Smashing delivery pump 7 is exactly will be by the pretreated liquid of primary of buffer cell
Separating twice grinding is carried out, is delivered to from clear filter 25.Simultaneously in order to monitor the collection for carrying out liquid total emission volumn data, in powder
The broken outlet of delivery pump 7 is equipped with the first electromagnetic flow transmitter 8, can solve 8 bulky grain of the first electromagnetic flow transmitter in this way
Dregs blockage problem.
It is preprocessing process core in entire domestic sewage processing system from clear filter 25, and enters electrolysis electrode 26
Preceding last line of defense, therefore be key factor whether being entire success of the test in entire processing and its important process.It is described
Pass through piping connection to the IIth grade of partition tank 2 from the blowdown valve 2504 of clear filter 25.The outlet from clear filter 25
2503 are sequentially connected electrolysis electrode 26, cell reaction pond 11 and outlet tank 12 by pipeline, and the outlet tank 12 passes through pipeline point
It is not connected with output pump 15 and efflux pump 13.The efflux pump 13 is exactly the executing agency of outside conveying qualified water, while in order to
It monitors total emission volumn and the second electromagnetic flow transmitter 14 is installed in 13 liquid outlet of efflux pump, upload volume exhaust total amount and wink at any time
Shi Liuliang.15 liquid outlet of output pump is connected with the spray head 20 for cleaning sieve 4 by detergent line, separates at the IIth grade
Five spray heads 20 of setting so that clean it in filter cake opposite side with sudden force in tank 2.
The electrolysis electrode 26 uses tubular pole, including the cylindric interior electrode being set-located with concentric circular fashion
2605 and external electrode 2604, there are gaps between interior electrode 2605 and external electrode 2604.The interior electrode 2605 and external electrode
2604 are all made of insoluble titanium as Polar plate matrix, introduce active layer with heat deposition oxidizing process or galvanoplastic.Such pole plate has
The advantages that corrosion resistance, electric conductivity, long service life, has preferable electrocatalysis characteristic to organic pollutant.In electrolytic process, only
Two kinds of effects of electric floating and electrochemical oxidation in operational process, do not need replacement electrode, operating aspect.In addition such electrode is not
Only to organic matter degradation efficiency with higher, and it is also equipped with good electric conductivity and sufficiently stable chemistry, electrochemistry
Energy.Be additionally provided with electric current self-checking device on electrolysis electrode 26, adjustable electric current make its stablize it is required numerically.
2604 lower end of external electrode is connected with lower flange 2602, but says that the lower flange 2602 told about is not common here
Lower flange, in order to make flow into electrolysis electrode 26 flow channel for liquids, the characteristics of liquid is hampered into swirl flow is more in line with, under
2602 inner edge of flange is arranged radially the blade at several inclination intervals, and as swirl-flow devices, lower flange 2602 are electrolysis electrodes 26
Water inlet.
2604 upper end of external electrode is connected with upper flange 2601, and the upper flange 2601 is adapter flange, bigger diameter end
It is connect with 2604 upper end of external electrode, the water blocking flanged joint of miner diameter end and interior 2605 upper end of electrode, 2604 side of external electrode
Wall top is provided with water outlet 2603.The upper flange 2602 and 2602 center of lower flange are provided with limited post, by tight
Fixing bolt limits interior electrode 2605 and radial and axial displacement occurs for external electrode 2604.And each flanged ends is provided with
O-ring seal prevents sewage from leaking.In addition it is specifically intended that electrode positive and negative anodes are surprisingly connected in order to prevent, swirl-flow devices are
Plastic material production, is arranged between 2602 inner edge of limited post and lower flange by plastic hot melt technology.Interior 2605 lower end of electrode
It is set in outside limited post and is positioned, then by the 2605 upper end clamping of positioning plate inner electrode, prevent the water of interior electrode 2605
Gentle axial displacement.
The pipeline connection connected between the electrolysis electrode 26 and cell reaction pond 11 has seawater filling line 21, to electrolysis
Seawater is injected in reaction tank 11, provides salinity as electrolyte.The combustible gases such as hydrogen are had during electrolysis and cell reaction
Body generates, if emission treatment not in time, hydrogen convergence mixes with air arrival explosion limit too much, it may occur that explosion, consequence
It is hardly imaginable.Therefore the outer arranging device 10 of one hydrogen is set in systems.Density of hydrogen detector is installed on pipeline, at any time
Monitoring hydrogen concentration.The micro-positive pressure that blower 9 keeps hydrogen outlet process, the connection of 9 exhaust outlet of blower are installed on cell reaction pond 11
There is the outer arranging device 10 of hydrogen, in the flow direction of gas is flowed from hyperbar to low pressure, be arranged in hydrogen discharge mouth not open close
Enter dry instrument supply gas, to guarantee that arranging device 10 goes out dry mouth no moisture outside hydrogen.The outer arranging device 10 of the hydrogen and instrument supply gas
Check valve 22 is connected between interface 23, to guarantee that the gas generated will not inversely be discharged.
The second fluid level transmitter is provided in the outlet tank 12, second fluid level transmitter is provided with high (HH) liquid
Position, high three (H) liquid level, low (L) liquid level Liquid level points, wherein tank boil-overs is alarmed when high (HH) liquid level, when high (H) liquid level
Start output pump 15, stops output pump 15 when low (L) liquid level.
The Ith grade of partition tank 1, the IIth grade of partition tank 2, from clear filter 25, electrolysis electrode 26,11 and of cell reaction pond
The top of outlet tank 12 is respectively connected with overflow passage 18.The Ith grade of partition tank 1, the IIth grade of partition tank 2, electrolysis electrode 26, electricity
The bottom of solution reaction tank 11 and outlet tank 12 is respectively connected with deslagging pipeline 16, and the deslagging pipeline 16 connects deslagging pump 17, deslagging
Pump 17 is to sink to the bottom for regular outlet in pollutants such as the sludge of tank bottom.The Ith grade of partition tank 1, the IIth grade of partition tank 2, electricity
The bottom of solution electrode 26, cell reaction pond 11 and outlet tank 12 is provided with manually-operated gate 19, in blowdown vessel when sludge, opening pair
The manually-operated gate 19 answered, starting deslagging pump 17 carry out outlet.
Conductivity is to directly affect the effect and electrode plate service life of electrolysis.In traditional processing unit in sanitary sewage
Often occurs effluent quality wild effect in treatment process, the voltage for no matter how adjusting electrode plate all cannot achieve equipment
Stable operation.Traditional method is often high voltage and determines problem with disequilibration, still, since electrode plate both end voltage loaded
Greatly, but the service life of electrode plate is seriously affected.Invention increases salting device 6, salting device 6 and the Ith grade of partition tank 1
It connects, conductivity sensor is provided in the Ith grade of partition tank 1 and cell reaction pond 11, the PLC monitoring system is realized
Electrical conductivity of solution is monitored on-line at times in Ith grade of partition tank 1 and cell reaction pond 11, certainly according to the monitored conductivity value of feedback
The salt adding amount of dynamic adjustment salting device 6 carrys out conductivity in balanced adjustment solution, rationally loads and adjusts for 26 both ends of electrolysis electrode
Voltage.
In order to increase device intelligence control, equipment is equipped with water quality online analyzer, respectively in buffer cell, cell reaction
Pond 11 and outlet tank 12 are provided with intake, and on-line monitoring analysis can be carried out to water quality, and data can be uploaded to PLC monitoring system
System.The PLC monitoring unit is connect with deslagging pump 17, controls the start and stop of deslagging pump 17；The PLC monitoring unit and electrolysis electrode
26 connections, periodically carry out reversion control to electrolysis electrode 26；The PLC monitoring unit and the first fluid level transmitter, the second liquid level
Transmitter, smashing delivery pump 7 and efflux pump 13 connect, and the liquid level for separating tank 2 and outlet tank 12 to the IIth grade is monitored, according to
The level value monitored controls the start and stop of smashing delivery pump 7 and efflux pump 13 respectively；The PLC monitoring unit and the second electromagnetic current
Transmitter 14 connects, and monitoring is carried out instantaneously and added up to 13 rate of discharge of efflux pump, reaches the mesh of total emission volumn monitoring control
's；The PLC monitoring unit is connect with output pump 15, by controlling the start and stop of output pump 15, is realized to sieve 4 in buffer cell
Backwash control.
Offshore platform sanitary sewage disposal electrolytic method of the invention, includes the following steps：
Step 1 buffers primary pretreatment：
Sanitary sewage is delivered to the Ith grade of partition tank 1, and the big dregs in sanitary sewage are trapped in the Ith grade of partition tank by sieve 4
1, start 5 circular flow of self-loopa macerator pump at this time, by big dregs granular powder breakdown mill at big by 3 upper screen cloth of partition, 4 structures
Small particle is emitted into the IIth grade of partition tank 2, and when the liquid level that the IIth grade is separated in tank 2 reaches set point value, starting crushes conveying
Pump 7 carries out separating twice grinding to liquid, is delivered to from clear filter 25.
The sieve 4 will form vertical " filter cake " during the filtration process, and using treated, qualified water cleans sieve 4,
Thus both can satisfy the requirement of prediction emission, it is also ensured that cleaning it is clean.Cleaning process is：It switches first to
Surge tank strainer mode is cleaned, the switching period will be selected in efflux pump 13 and stop under outlet state, and liquid level exists in the Ith grade of partition tank 1
Partition 3 is lower to carry out, and liquid level reaches setting value (under normal circumstances, outlet tank 12 is reserved with guarantor by Liquid level in outlet tank 12
The liquid of card backwash 4 three times water consumption of sieve enough), then start output pump 15, qualified water that treated is from outlet tank 12
The spray head 20 being delivered in the IIth grade of partition tank 2, and then sieve 4 is cleaned.Scavenging period is generally 10S, cleaning frequency
Clean prompting can be done on the control panel cabinet of sanitary sewage local.
Step 2, depth pretreatment：
Through the primary pretreated liquid of buffering after from the entrance of the inlet tube 2502 of clear filter 25, pass through internal screen
2501 are filtered, and filtered solution is through draining into electrolysis electrode 26 outside outlet 2503, and filtered impurities accumulation is being filtered
2501 inner surface of net forms " filter cake ", with the increase for the impurity that strainer 2501 intercepts, produces between clear filter 25 inlet and outlet
Raw pressure difference, is installed with pressure difference switch from clear 25 ontology of filter, when the differential reaches a set point, just delivers a signal to matched
Control cabinet, control cabinet sending execute order, and starter motor 2505 drives internal brush washer structure 2506 to rotate, beats simultaneously
Blowdown valve 2504 is opened, the dirt solution formed under the dregs brush under strainer 2501 is intercepted is expelled to the IIth grade of partition tank 2, is formed
Self-cleaning is recycled, entire cleaning process only needs more than ten seconds.From in clear 25 cleaning process of filter, system does not stop, still
It is so supplying water, system does not stop when cleaning；Control cabinet is provided with multinomial defencive function, and can record cleaning systems situation.
Step 3, electrolysis processing：
Enter the interior electrode 2605 of electrolysis electrode 26 and outer through the uniform eddy flow of swirl-flow devices through the pretreated solution of depth
2604 gap of electrode is electrolysed, and the Strong oxdiatives fungicide such as hypochlorous acid are generated.In electrolytic process, certain metal oxides are in electricity
High-valence state is oxidized in chemical process, then these high-valence state substance deoxidation organic matters, high-valence state organic matter is gone back at this time
Original achievees the purpose that oxidation removal pollutant at former valence state species in cycles in this way.Also generating in electrolytic process has by force
The strong oxidizers deoxidation decomposing organic matter such as chlorate, hypochlorite, hydrogen peroxide and ozone of oxidisability.Electrification can also be utilized
Learn intermediate (including solvated electron, hydroxyl, super hydrogen oxide, oxygen radical etc. of short life, strong oxidizing property that reaction generates
Free radical) oxidative degradation pollutant.
Interior electrode 2605 in electrolysis electrode 26 and external electrode 2604 be in concentric circles together with, pass through PLC
Control system timing inner electrode 2605 and external electrode 2604 carry out reversion control, can make its antipole that is positive.It is monitored by PLC
System realizes electrode conversion, effectively reduces the accumulation of interior electrode 2605 and the electrodeposit on external electrode 2604, in guarantee
Electrode 2605 and 2604 service life of external electrode and electrolytic efficiency.
Step 4, cell reaction processing：
Through electrolysis, treated that solution enters cell reaction pond 11, is aoxidized, sterilized, sterilized.
Cell reaction pond 11 is the reaction vessel for accommodating the chemisms such as electrolyte oxidation, sterilization, disinfection, cell reaction pond
The interior residence time is a key factor, influences the effect of the series reactions such as sanitary sewage oxidation, sterilization, disinfection, direct shadow
Ring effluent quality.The reaction mechanism is as follows in cell reaction pond：
1. the strong oxidizers such as hypochlorite can be obtained in electrolysis, in entire disinfecting process in the presence of chloride ion
It is that main effect has been played by sodium hypochlorite.For lived bacterium and virus, hypochlorite penetrates cell wall, oxygen
Change its enzyme system (enzyme is biocatalyst), causes it to lose its activity, keep the life of bacterium dead by obstacle.
2. the hydroxyl radical free radical generated in electrolytic process, oxygen, hydrogen peroxide etc. also have good effect to sterilization.
3. electric field has the function of sterilization, as a result microorganism leads to its propagating system because of the tachyauxesis under electric field action
There is defect, fertility reduces.
The penetration of electric-field enhancing hydrone makes hydrone easily penetrate the cell wall of microorganism, microorganism or because of water shortage
And it is die of thirst or because excessive water enter it is internal and swollen dead.
Step 5 precipitates outlet：
Through cell reaction, treated that solution is delivered to outlet tank 12 is precipitated, and qualified water is obtained, when in outlet tank 12
When liquid level reaches setting value, qualified water is conveyed by efflux pump 13 outward.
During offshore platform sanitary sewage disposal of the present invention, when the Ith grade of partition tank 1, the IIth grade of partition tank 2, from clearly
Pass through overflow passage when filter 25, electrolysis electrode 26, cell reaction pond 11 and outlet 12 overflow of tank and carries out outlet.When the Ith
When precipitating has pollutant in grade partition tank 1, the IIth grade of partition tank 2, electrolysis electrode 26, cell reaction pond 11 and outlet tank 12, beat
Manually-operated gate 19 is opened, starts deslagging pump 17, passes through the regular outlet of deslagging pipeline 16.By salting device 6 to the Ith grade of partition tank 1
Salinity is launched, PLC control system monitors electrical conductivity of solution in the Ith grade of partition tank 1 and cell reaction pond 11 on-line at times, according to
6 salt adding amount of monitored conductivity value adjust automatically salting device of feedback carrys out conductivity in balanced adjustment solution.Electrolysis processing and electricity
The hydrogen generated during solution reaction treatment is discharged by the outer arranging device 10 of hydrogen.
Although above in conjunction with attached drawing, invention has been described, and the invention is not limited to above-mentioned, above-mentioned is specific
Embodiment is only schematical, rather than restrictive, and those skilled in the art under the inspiration of the present invention, go back
Many forms can be made, all of these belong to the protection of the present invention.
Claims (8)
1. a kind of offshore platform sanitary sewage disposal electrolytic method, which is characterized in that include the following steps：
Step 1 buffers primary pretreatment：
Sanitary sewage is delivered to the Ith grade of partition tank (1), and the big dregs in sanitary sewage are trapped in the Ith grade of partition tank by sieve
(1), at this time start self-loopa macerator pump (5) circular flow, by big dregs granular powder breakdown mill at pass through partition (3) upper screen cloth knot
The particle of structure size is emitted into the IIth grade of partition tank (2), when the liquid level that the IIth grade is separated in tank (2) reaches setting value, starting powder
Broken delivery pump (7) carries out separating twice grinding to liquid, is delivered to from clear filter (25)；
Step 2, depth pretreatment：
Through the primary pretreated liquid of buffering after entering from the inlet tube of clear filter (25) (2502), pass through internal screen
(2501) it is filtered, filtered impurities accumulation forms " filter cake " in strainer (2501) inner surface, with the increase of impurity, certainly
Pressure difference is generated between clear filter (25) inlet and outlet, when the differential reaches a set point, starter motor (2505) drives internal brush
Formula wiper mechanism (2506) is opened blowdown valve (2504), and dirt solution is expelled to the IIth grade of partition tank (2), is formed and is recycled from clear
It washes；Through strainer (2501) the filtered solution from clear filter (25) through draining into electrolysis electrode (26) outside outlet (2503)；
Step 3, electrolysis processing：
Enter the interior electrode (2605) and external electrode (2604) of electrolysis electrode (26) through the uniform eddy flow of the pretreated solution of depth
Between be electrolysed, in electrolytic process, certain metal oxides are oxidized to high-valence state, then these high-valence state substances deoxygenate
Change organic matter, high-valence state organic matter is reduced into former valence state species at this time, reaches oxidation removal pollutant in cycles in this way
Purpose；Strong oxidizer deoxidation decomposing organic matter is also generated in electrolytic process, the centre generated using electrochemical reaction process
Body oxidative degradation pollutant；
Step 4, cell reaction processing：
Through electrolysis, treated that solution enters cell reaction pond (11), is aoxidized, sterilized, sterilized；
Step 5 precipitates outlet：
Through cell reaction, treated that solution is delivered to outlet tank (12) is precipitated, and qualified water is obtained, when in outlet tank (12)
When liquid level reaches setting value, qualified water is conveyed by efflux pump (13) outward.
2. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that described in step 1
Sieve (4) will form vertical " filter cake " during the filtration process, and using treated, qualified water cleans sieve (4), cleaning process
For：Efflux pump (13) stops outlet, and under partition (3), outlet tank (12) interior liquid level reaches to be set the Ith grade of partition tank (1) interior liquid level
Definite value starts output pump (15), and qualified water that treated is delivered to the spray head in the IIth grade of partition tank (2) from outlet tank (12)
(20), it and then to sieve (4) cleans.
3. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that pass through in step 3
PLC control system timing carries out reversion control to the interior electrode (2605) and external electrode (2604) of electrolysis electrode (26), makes it
Positive antipole.
4. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that described in step 4
Seawater is injected in cell reaction pond (11), provides salinity as electrolyte, the reaction mechanism is as follows for the cell reaction pond (11)：
1. it is by secondary chlorine in entire disinfecting process that electrolysis, which obtains hypochlorite strong oxidizer, in the presence of chloride ion
Sour sodium has played main effect；For lived bacterium and virus, hypochlorite penetrates cell wall, aoxidizes its enzyme system
System, causes it to lose its activity, keeps the life of bacterium dead by obstacle；
2. the hydroxyl radical free radical generated in electrolytic process, oxygen, hydrogen peroxide, play bactericidal effect；
3. electric field has the function of sterilization, as a result microorganism causes its propagating system to occur because of the tachyauxesis under electric field action
Defect, fertility reduce；
4. the penetration of electric-field enhancing hydrone makes hydrone penetrate the cell wall of microorganism, microorganism or die of thirst because of water shortage
Or because excessive water enter it is internal and swollen dead.
5. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that separate when the Ith grade
Tank (1), the IIth grade of partition tank (2), from clear filter (25), electrolysis electrode (26), cell reaction pond (11) and outlet tank (12)
Pass through overflow passage (18) when overflow and carries out outlet.
6. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that separate when the Ith grade
Precipitating has pollutant in tank (1), the IIth grade of partition tank (2), electrolysis electrode (26), cell reaction pond (11) and outlet tank (12)
When, it opens manually-operated gate (19), starts deslagging pump (17), pass through deslagging pipeline (16) regular outlet.
7. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that pass through salting device
(6) salinity is launched to the Ith grade of partition tank (1), PLC control system monitors the Ith grade of partition tank (1) and cell reaction on-line at times
Pond (11) interior electrical conductivity of solution, according to monitored conductivity value adjust automatically salting device (6) salt adding amount of feedback come balanced adjustment
Conductivity in solution.
8. offshore platform sanitary sewage disposal electrolytic method according to claim 1, which is characterized in that electrolysis processing and electricity
The hydrogen generated during solution reaction treatment is discharged by the outer arranging device (10) of hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548606.7A CN108911284A (en) | 2018-05-31 | 2018-05-31 | A kind of offshore platform sanitary sewage disposal electrolytic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548606.7A CN108911284A (en) | 2018-05-31 | 2018-05-31 | A kind of offshore platform sanitary sewage disposal electrolytic method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108911284A true CN108911284A (en) | 2018-11-30 |
Family
ID=64419904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810548606.7A Pending CN108911284A (en) | 2018-05-31 | 2018-05-31 | A kind of offshore platform sanitary sewage disposal electrolytic method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108911284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348764A (en) * | 2020-03-06 | 2020-06-30 | 上海宇豪环境工程有限公司 | Novel marine sewage treatment device |
| CN115259486A (en) * | 2022-06-30 | 2022-11-01 | 南通理工学院 | System for ship sewage is handled to electrolysis method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009123374A1 (en) * | 2008-04-01 | 2009-10-08 | Il Seung Co., Ltd | Biochemical sewage treatment system for marine use |
| CN102039065A (en) * | 2009-10-15 | 2011-05-04 | 甘肃大禹节水股份有限公司 | Bulk flow and self-cleaning net type filter |
| JP3173439U (en) * | 2011-09-12 | 2012-02-09 | セバーン トレント デ ノラ，エルエルシー | Marine sewage treatment |
| CN104176861A (en) * | 2014-08-18 | 2014-12-03 | 中国海洋石油总公司 | Offshore platform domestic sewage treatment method |
| CN104743642A (en) * | 2015-03-31 | 2015-07-01 | 苏州东大仁智能科技有限公司 | Electrolyzer and marine sanitary sewage treatment system |
| CN104291503B (en) * | 2014-09-18 | 2016-01-20 | 中国海洋石油总公司 | Offshore platform sanitary sewage catalytic oxidation treatment process and treatment system |
| CN106890838A (en) * | 2015-12-19 | 2017-06-27 | 广州伟烨船舶设备有限公司 | Warship marine domestic sewage and comprehensive food waste treatment system and method |
| CN108083520A (en) * | 2017-12-29 | 2018-05-29 | 苏州东大仁智能科技有限公司 | A kind of marine domestic sewage processing method |
-
2018
- 2018-05-31 CN CN201810548606.7A patent/CN108911284A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009123374A1 (en) * | 2008-04-01 | 2009-10-08 | Il Seung Co., Ltd | Biochemical sewage treatment system for marine use |
| CN102039065A (en) * | 2009-10-15 | 2011-05-04 | 甘肃大禹节水股份有限公司 | Bulk flow and self-cleaning net type filter |
| JP3173439U (en) * | 2011-09-12 | 2012-02-09 | セバーン トレント デ ノラ，エルエルシー | Marine sewage treatment |
| CN104176861A (en) * | 2014-08-18 | 2014-12-03 | 中国海洋石油总公司 | Offshore platform domestic sewage treatment method |
| CN104291503B (en) * | 2014-09-18 | 2016-01-20 | 中国海洋石油总公司 | Offshore platform sanitary sewage catalytic oxidation treatment process and treatment system |
| CN104743642A (en) * | 2015-03-31 | 2015-07-01 | 苏州东大仁智能科技有限公司 | Electrolyzer and marine sanitary sewage treatment system |
| CN106890838A (en) * | 2015-12-19 | 2017-06-27 | 广州伟烨船舶设备有限公司 | Warship marine domestic sewage and comprehensive food waste treatment system and method |
| CN108083520A (en) * | 2017-12-29 | 2018-05-29 | 苏州东大仁智能科技有限公司 | A kind of marine domestic sewage processing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348764A (en) * | 2020-03-06 | 2020-06-30 | 上海宇豪环境工程有限公司 | Novel marine sewage treatment device |
| CN115259486A (en) * | 2022-06-30 | 2022-11-01 | 南通理工学院 | System for ship sewage is handled to electrolysis method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3204678U (en) | Domestic sewage treatment equipment | |
| CN104743642B (en) | A kind of electrolysis unit and marine domestic sewage processing system | |
| CA2810285C (en) | Electrolytic cell and system for treating water | |
| CN102515398B (en) | Method for treating domestic sewage of compound ship | |
| CN106277637A (en) | A kind of method and system processing black smelly surface water | |
| CN108083520A (en) | A kind of marine domestic sewage processing method | |
| CN108911284A (en) | A kind of offshore platform sanitary sewage disposal electrolytic method | |
| CN209957593U (en) | Integrated efficient sewage membrane treatment equipment | |
| CN102381791A (en) | Equipment for treating organic wastewater through joint of electrolyzation and oxidant | |
| CN208883629U (en) | A kind of offshore platform sanitary sewage disposal electrolysis unit | |
| CN104743702B (en) | One way of life sewage disposal adjusting means | |
| CN205313294U (en) | But continuous operation's cooling circulating water treatment system | |
| CN204569505U (en) | A kind of electrolyzer and marine domestic sewage treatment system | |
| CN208933185U (en) | A kind of sewage disposal device with biological drum | |
| CN108640368A (en) | A kind of offshore platform sanitary sewage disposal electrolysis unit | |
| CN110194548A (en) | Optical-electronic is catalyzed Sewage from Ships processing method | |
| CN205473211U (en) | Sewage treatment plant for boats and ships | |
| CN112551653A (en) | Sewage is circulation self-checking device for hierarchical processing | |
| CN209193692U (en) | A kind of shale gas fracturing outlet liquid electrolytic sterilizing apparatus sledge | |
| KR100815235B1 (en) | Waste water treating system | |
| CN218435319U (en) | Multi-level filtering mechanism for tap water treatment | |
| CN113371931A (en) | Sewage biological method processing system | |
| CN110921879A (en) | Domestic wastewater treatment system and method | |
| CN217998130U (en) | Drainage device for hydraulic engineering construction | |
| CN217677136U (en) | Full-automatic sterilization, algae removal, purification and filtration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181130 |