CN207175730U - A kind of integrated sewage treatment device - Google Patents

Abstract

The utility model discloses a kind of integrated sewage treatment device, belongs to sewage treatment area, and described device includes biological fiber membrane cisterna, electrochemical reactor, catalytic reactor, charcoal bed；Described biological fiber membrane cisterna, electrochemical reactor, catalytic reactor, charcoal bed are sequentially connected；The first return line is set between described electrochemical reactor and biological fiber membrane cisterna, 4th return line is set between described charcoal bed and biological fiber membrane cisterna, described electrochemical reactor delivery port sets gradually separator, the first detector, and catalytic reactor delivery port sets the second detector；Described electrochemical reactor is constant current constant voltage formula reactor；Electrochemical reactor polarity of electrode can be changed mutually.Integrated sewage treatment device of the present utility model have small floor space, strong shock resistance, high treating effect, it is non-maintaining the characteristics of.

Description

A kind of integrated sewage treatment device

Technical field

The utility model belongs to sewage treatment area, is related to a kind of integrated sewage treatment device.

Background technology

Offshore platform sewage is mainly made up of dining room waste water, waste water of bath, laundrywastes, waste water of toilet etc., and such is dirty Water salt content is higher, and simultaneously containing a large amount of disinfectants, greasy dirt, difficult degradation surfactant, intractability is larger, as country is right The raising of offshore platform sewage drainage standard, conventional biochemical treatment can not reach New emission standard requirement, such as that sewage is straight Run in into water body, it will cause water environment drastically to deteriorate, therefore the improvement to offshore platform sewage causes increasing pass Note.

The more scattered area in the geographical position such as rural area, Small Urban, municipal administration can not be introduced by sewage network by often existing The problem of pipe network, not only sewage after processing can not be subjected to reuse, will also trigger serious problem of environmental pollution, in existing dirt In water process integration apparatus, often exist occupation area of equipment is big, outlet effect is unstable, operating cost and maintenance cost compared with The defects of high.

Therefore, the sewage disposal integration that a kind for the treatment of effect is excellent, floor space is small, operating cost is low is developed to set It is standby, the sewage disposal of offshore platform, ship, submarine and other middle-size and small-size sewage disposal occasions can be applied to, had non- Normal important meaning.

At present, offshore platform sewage treatment process mainly continues to use vessel Waste handling process, wherein using more technique Mainly include Biological Contact Oxidation Process, membrane bioreactor (MBR) technique and electrolysis technique.Wherein, biological contact oxidation Chemical industry skill is the filler of the filling load biomembrane in biological reaction pool, and being removed using microbial metabolism on biomembrane in water body is had A kind of handling process of organic pollutants, the handling process play certain effect in sewage disposal process, however, because load is given birth to The filler impact resistance of thing film is poor, and bacterium is not easy to survive and stopped, and causes effluent quality unstable, it is difficult to reaches sewage row Standard is put, and the technique usually requires to set flocculation sedimentation tank, floor space is big, exists for offshore platform sewage disposal certain Limitation.

Membrane bioreactor (MBR) technique is a kind of new, high-efficiency sewage being combined into by UF membrane and biological treatment Treatment technology, compared with traditional biochemical water technology, MBR techniques have the advantages for the treatment of effeciency is high, effluent quality is good, so And film and membrane module are expensive, make the process operation cost higher.

Electrolysis sewage treatment process is widely used in new offshore platform, and it is high that it utilizes the sodium chloride in electrolytic seawater to produce The sodium hypochlorite of concentration, using the organic pollution in sodium hypochlorite strong oxidation degraded water body, the handling process can be notable Improve suspension (SS), total phosphorus (TP), colourity, the clearance of organic pollution, but its there is also it is inevitable the defects of：1) More electric energy will be expended during electrolytic seawater, operating cost is high；2) it is big and effluent quality is unstable in water use peak phase water In the case of fixed, water outlet is unable to stably reaching standard discharge.

Through retrieval, prior art has been disclosed for more technical scheme, such as China Patent No. CN201110087069.9, This application case discloses a kind of ship integrated apparatus, and it includes effluent plenum, and its side wall is provided with overflow outlet, and middle part is set Disinfectant container chamber is put, bottom is connected by pipeline with disinfectant container chamber, and effluent plenum inwall holds with disinfectant Filler is set in the cavity between device chamber outer wall, gap is left between filler and disinfectant container chamber, exposure is arranged at gap bottom Feed channel, aeration branch pipe is distributed with aerated conduit, aeration branch pipe tilt outlet towards the outer wall of disinfectant container chamber, is adopted Not only make whole device aeration uniformly with the device of this application case, gas will not directly act on filler, to microorganism impulsive force It is smaller, although the arrangement increases the efficiency of microbial degradation waste water, but be only often difficult to ensure that by bioremediation The qualified discharge of sewage disposal in the case of variation water quality condition is larger.

Therefore, for offshore platform facility, Small Urban and rural sewage treatment, need exploitation one kind badly and invest small, occupation of land Area is small, high treating effect, stable integrated sewage treatment device.

The content of the invention

1st, to solve the problems, such as

For existing offshore platform, ship, submarine and other middle-size and small-size sewage disposal occasion sewage disposal spaces it is limited, The characteristics of water quality and quantity fluctuation is big, generally existing system impact resistance is poor, treatment effeciency is low in existing sewage treatment process, The defects for the treatment of effect is bad.The present invention is intended to provide the integrated sewage treatment device that a kind of floor space is small, the device resists Impact capacity is strong, treatment effeciency is high, high treating effect.

2nd, technical scheme

To solve the above problems, the utility model adopts the following technical scheme that.

The utility model provides a kind of integrated sewage treatment device, including biological fiber membrane cisterna, electrochemical reactor, Catalytic reactor；Described biological fiber membrane cisterna, electrochemical reactor, catalytic reactor are sequentially connected；Described electrochemistry is anti- It is constant current constant voltage formula reactor to answer device；Described electrochemical reactor electrode material is identical, and polarity of electrode can be changed mutually.

It is anti-with being catalyzed as further improvement of the present utility model, in addition to charcoal bed, described charcoal bed Device is answered to be connected.

Electrochemistry is arranged at as further improvement of the present utility model, including the first detector, the first detector On pipeline between reactor and catalytic reactor, electrochemical reactor water outlet enters catalytic reaction after the detection of the first detector Device processing is expelled directly out.

As further improvement of the present utility model, in addition to the first return line and separator, the separator It is arranged between electrochemical reactor and the first detector, separator is connected by the first return line with biological fiber membrane cisterna； It is divided into suspension water body and clarification water body after separator is handled through the water outlet of electrochemical reactor processing, suspension water body enters First return line reflow treatment；Water body is clarified to detect into the first detector.

As further improvement of the present utility model, described electrochemical reactor includes dc source, the first electricity Pole, second electrode, described first electrode, second electrode are connected with dc source respectively, the first electrode and the second electricity The polarity of pole can be changed mutually；The first electrode, the material of second electrode are carbon steel, in aluminium, titanium, graphite, carbon fibre material Any one.

It is anti-as further improvement of the present utility model, including backwashing pump, the 4th return line, described electrochemistry Answer device to connect charcoal bed by backwashing pump, the 4th described return line be connected to charcoal bed and biological fiber membrane cisterna it Between.

It is connected to as further improvement of the present utility model, including the second detector, the second described detector Between catalytic reactor, charcoal bed, catalytic reactor water outlet enters charcoal bed processing or straight after the detection of the second detector Run in.

As further improvement of the present utility model, including oxidant supplementary device, described oxidant supplement dress Put and be connected with catalytic reactor；Described oxidant supplementary device can also be connected with electrochemical reactor, charcoal bed or Do not connect.

As it is of the present utility model it is further improve, including the second return line, the 3rd return line, described the Two return lines are connected between catalytic reactor and electrochemical reactor, and the 3rd return line is connected to charcoal bed and electrification Between reactor.

As it is of the present utility model it is further improve, described electrochemical reactor also include cell body, target, Solid catalyst, the second aerator；Described target is set between the first electrode and the second electrode, and the solid is urged Agent is arranged inside cell body, and the second aerator is arranged at cell body bottom.

3rd, beneficial effect

Compared to prior art, the beneficial effects of the utility model are：

(1) integrated sewage treatment device of the present utility model, be it is a kind of be applied to offshore platform facility, Small Urban and The integrated sewage treating apparatus of rural sewage treatment, for suitable for above-mentioned scene, it is desirable to which sewage disposal can be in set of device It is middle to complete, reach the purpose directly discharged and non-maintaining to greatest extent.Therefore the device of the present invention, sets gradually biology Fiber membrane cisterna electrochemical reactor, catalytic reactor are efficiently treated through；Due to wastewater source kind under the use environment of the present apparatus Class is complicated, existing sanitary sewage, also including difficult-degradation organic sewage, it is necessary to dirt for all types of water temperatures, pH under different situations Water can be handled effectively.The present apparatus does not rely on merely biological treatment, and biological fiber membrane cisterna is playing certain biological treatment function While, also function to filtering, intercept suspension, the purpose of microorganism, electrochemical reactor thereafter, catalytic reactor processing effect High, the logical adaptive of rate is strong, overcomes the defects of single biological treatment mode impact resistance is poor, whole device impact resistance By force, high treating effect, stable water outlet.

(2) two kinds of constant current, constant pressure moulds can be set in integrated sewage treatment device of the present utility model, electrochemical reactor Formula, different types of sewage can be directed to and select different tupes, water quality ripple more single in dirty pollutant in water It is set as constant current mode when dynamic smaller, and when variation water quality is larger, then constant voltage mode can be switched to, avoids variation water quality big When due to sewage resistance change it is larger, caused by the problems such as voltage pulsation on battery lead plate is big, service life of equipment shortens, together When solve pollutant type in sewage it is complex in the case of, exist by unlimited high current its disposal ability certain The problem of limitation, so as to ensure treatment effect, further increase the impact resistance of system.Prior art is different to adapt to Wastewater treatment, it usually needs use expensive electrode material, operating cost is higher, and device of the invention is only permanent by setting Stream, the pattern switching of constant pressure, realize shock proof purpose, reduce further operating cost.

(3) integrated sewage treatment device of the present utility model, because applicable situation is complicated, variation water quality is big, therefore First detector is set at electrochemical reactor water outlet, the effluent quality of electrochemical reactor can be detected, by electricity Chemical reactor efficient process, water outlet up to standard can be discharged directly, and water outlet not up to standard can enter catalytic reactor and handle, and on the one hand keep away The reprocessing of water body up to standard is exempted from, has improved resource utilization, on the other hand added the impact resistance of system, ensured Water water quality.

(4) integrated sewage treatment device of the present utility model, at the same the charcoal bed accessory in the present apparatus have it is non-maintaining On the one hand feature, the feature are the COD of sewage after the processing of biological fiber membrane cisterna-electrochemical reactor-catalytic reactor Be worth it is relatively low, it is smaller to the load of charcoal bed；Further aspect is that the 4th return line set can be utilized periodically as needed Backwashing pump is drawn water from electrochemical reactor, and the suspension accumulated in charcoal bed, microorganism backwash are entered into membrane of biological fibers Pond is handled again, while non-maintaining function is realized, electrochemical reactor and charcoal bed cooperating operation, and easy to operate, section Resource-saving, it reduce further cost.Further, the charcoal bed in this patent plays in integrated sewage treatment device Buffering, the purpose of circular treatment, be difficult to when sewage quality is poor under disposition, charcoal bed can by biological fiber membrane cisterna- The untreated pollutant absorption finished of electrochemical reactor-catalytic reactor, makes pollutant rest on charcoal bed, when system is born Carry it is smaller or when be not required to sewage, by recoil by the pollutant adsorbed in charcoal bed reenter biological fiber membrane cisterna- Electrochemical reactor-catalytic reactor processing, had both realized the non-maintaining of charcoal bed, and had improved biological fiber membrane cisterna-electricity again The impact resistance of chemical reactor-catalytic reactor.

(5) integrated sewage treatment device of the present utility model, biological treatment and preliminary is played using biological fiber membrane cisterna Filtration, while separator, the first return line are set respectively after electrochemical reactor, electrochemical reactor can be handled Water outlet is according to circumstances respectively adopted and is back to biological fiber membrane cisterna, goes successively to catalytic reactor processing or through the first detector afterwards Qualified rear directly discharge is detected, the processing to pollutant is more targeted, and treatment effeciency is higher.

(6) integrated sewage treatment device of the present utility model, for electrochemical reactor sewage type in the prior art Single, the characteristics for the treatment of effeciency is low, electrochemical reactor of the invention for realize various types of pollutants and meanwhile handled, And the characteristics of non-maintaining, treatment effeciency is high, first its yin, yang electrode is arranged to electrode capable of reversing, overcome electrode pole Passivation is also easy to produce on plate influences the phenomenon that reaction is carried out, and ensures reaction high efficiency；Secondly, among being set between yin, yang electrode Electrode, target can play the effect of bipolar electrode, and oxidation and reduction reaction can occur on its pole plate simultaneously；Target reduces Spacing between negative electrode and anode, make multiple pole spans are small, electrolytic efficiency is high electrochemical reaction system while handled；With showing Having in technology only sets the mode of two kinds of electrodes of yin, yang to compare, and reaction efficiency is higher；In addition, urging in this electrochemical reactor Agent has many effects, and surface can also carry out redox reaction effect after its conduction, and it is anti-further to strengthen electrochemistry Answer efficiency.Therefore, the effect of capable of reversing, target, catalyst is combined as a whole by the electrochemical reactor, ensures electrochemistry Reactor completion within a short period of time is handled, high treating effect.

(7) integrated sewage treatment device of the present utility model, compared with prior art in catalyst only have catalysis effect Fruit is compared, and the catalyst in this electrochemical reactor has many effects：1) catalyst can band in electric field action lower surface Electricity, so as to which as a kind of new electrode, the chemical reaction such as redox occur on surface；2) its specific surface area is big, the biography of material Matter efficiency high；3) under aerating system effect, catalyst forms fluidized state, and sewage effectively contacts further increasing with catalyst Add.4) catalyst has the activity that catalytic electrochemical reacts simultaneously, therefore the electrochemical reactor of the present invention has catalyst The big feature of specific surface area, catalytic performance, electric conductivity are incorporated into one, further enhance reaction efficiency, ensure the steady of water outlet It is qualitative.

(8) integrated sewage treatment device of the present utility model, the electrode of its electrochemical reactor can the setting of commutation assign The characteristics of having given electrochemical reactor electrode non-maintaining.Conventional electrochemical reactor is using one-way electric power, a kind of anode, in electricity Plate passivation is also easy to produce in the course of reaction of pole, the passivating film of densification is formed, hinders reaction to carry out, influence treatment effeciency；Cause Not only treatment effeciency is low for this conventional electrochemical reactor, and needs periodic maintenance, and in the present apparatus, electrochemical reactor leads to The periodic direction that oversampling circuit is powered changes and changes electrode direction, after electrode conversion changeabout polarity, can make electrode The deposit of polar board surface, passivation come off, and are together handled with pollutant as aerating system washes away.Avoid electrode needs The defects of often cleaning, safeguarding, ensures the continuous operation of system, while overcomes the treatment effeciency caused by producing passivating film and drop The defects of low.

(9) integrated sewage treatment device of the present utility model, to realize the non-maintaining purpose of electrochemical reactor, it is also Second return line, the 3rd return line are set, can in the state of system temporarily ceases operation, once occur electrochemistry it is anti- The situation of device water shortage is answered, the water in catalytic reactor and charcoal bed can be incorporated into electrochemical reactor, realizes electrification Learn the automatic maintenance purpose of reactor.

(10) integrated sewage treatment device of the present utility model, using automated setting, it is by oxidant supplementary device Connected with catalytic reactor, oxidant is conveyed for catalytic reactor, on the one hand saved oxidant addition operation, on the other hand make The treatment effect of catalytic reactor is more stable.

(11) integrated sewage treatment device of the present utility model, the water outlet satisfaction after processing《Integrated wastewater discharge standard (GB8978-1996)》First discharge standard, while the requirement of reuse on the spot can be met, resource utilization is high, floor space is small, Cost is cheap, provides larger facility for the scattered regional sewage disposal such as Offshore Units, rural area, cities and towns.

Brief description of the drawings

Fig. 1 is the structural representation of integrated sewage treatment device；

Fig. 2 is the structural representation of electrochemical reactor.

1st, biological fiber membrane cisterna；2nd, electrochemical reactor；3rd, catalytic reactor；4th, charcoal bed；5th, the first detector；6、 Separator；7th, oxidant supplementary device；8th, the second detector；9th, backwashing pump；10th, valve body；101st, the first pipeline；201st, first time Flow tube road；202nd, the second pipeline；203rd, the first discharge line；204th, the 3rd pipeline；301st, the 4th pipeline；303rd, the second return duct Road；401st, the 3rd return line；402nd, the 4th return line；403rd, the second discharge line；501st, dc source；502nd, the first electricity Pole；503rd, second electrode；504th, the second aerator；505th, target.

Embodiment

With reference to embodiment and accompanying drawing, the present invention will be described in detail.

Embodiment 1

With reference to Fig. 1, the present embodiment is a kind of integrated sewage treatment device, including biological fiber membrane cisterna 1, electrochemical reaction It is device 2, catalytic reactor 3, the first detector 5, oxidant supplementary device 7, separator 6, blower fan, the first return line 201, automatically controlled Cabinet.

Described biological fiber membrane cisterna 1, electrochemical reactor 2, separator 6, the first detector 5, catalytic reactor 3 are successively Connection；First return line 201 is arranged between separator 6 and biological fiber membrane cisterna 1.

Blower fan is connected with biological fiber membrane cisterna 1, electrochemical reactor 2 respectively, oxidant supplementary device 7 respectively with electrification Learn reactor 2, catalytic reactor 3 is connected.

Operation principle is as follows during the device normal operation：Waste water enters from biological fiber membrane cisterna 1 first, by biological fiber Membrane cisterna 1 carries out biological treatment, and pollutant is degraded under the microbial action of biological fiber membrane cisterna 1, and the biodegradability of sewage improves, together When biological fiber membrane cisterna 1 there is biofiltration, the suspension in water body can be retained.The first pipeline is passed through in its water outlet 101 are handled into electrochemical reactor 2, are directed to different pollutants and are carried out various types of oxidations, reduction reaction, treatment effeciency Height, further improve the biodegradability of sewage.

Electrochemical reactor 2 handles the water outlet after water outlet is handled by separator 6 and is divided into suspension water body, clarification water body, Suspension water body can pass through the first return line 201 and be stirred into biological fiber membrane cisterna 1, homogenizes water quality, in biological fiber Handled again in membrane cisterna 1；Clarification water body is detected into the first detector 5, and the first described detector 5 is examined for COD Survey instrument, after detection water outlet be divided into different processing approach according to COD testing results：Water outlet up to standard can be directly by the first discharge Pipeline 203 is discharged；Water outlet not up to standard is handled by the second pipeline 202 into catalytic reactor 3, and catalytic reactor 3 is mainly chemistry Oxidation catalysis processing mode, the outlet pipeline handled through catalytic reactor 3 are connected with the first discharge line 203, finally by the One discharge line 203 is discharged.The processing mode is with strong points, improves treatment effeciency, ensure that the shock resistance energy of whole device The stabilization of power and final outflow water.

Sludge discharging port is respectively equipped with biological fiber membrane cisterna 1, electrochemical reactor 2, often runs 1 year half time, system is stopped Only run and carry out spoil disposal, sludge is packaged and takes back land processing.

Biological fiber membrane cisterna 1, electrochemical reactor 2, catalytic reactor 3 are described in detail separately below.

(1) biological fiber membrane cisterna 1：

Biological fiber membrane cisterna 1 is made up of pond body, fiber biological filter bed, first row gas port, the first aerator, fiber biological Filter bed is located in pond body, and the first aerator is arranged at fiber biological filter bed bottom；The first described aerator and blower fan phase Connection.Described fiber biological filter bed is China Patent No. CN201010109192.1, and patent name is filtered for a kind of aeration and biological A kind of aeration fiber biological filter bed introduced in bed and its method for sewage advanced processing.

According to the difference of pollution level, fiber biological filter bed includes Heisui River biological fiber filter bed and buck biological fiber respectively Filter bed, Heisui River refer to the water quality that pollution level is larger, color is deeper, and buck refers to the water quality that pollution level is smaller, color is shallower；Heisui River Biological fiber filter bed and buck biological fiber filter bed load different fillers respectively, can be directed to different water quality and be located respectively Reason, treatment effeciency are higher.Dissolved oxygen sensor is also set up in biological fiber membrane cisterna 1, dissolved oxygen sensor detects biological fibre in real time Dissolved oxygen concentration in membrane cisterna 1 is tieed up, system the first aerator of automatic start when dissolved oxygen concentration is too low in pond, works as dissolved oxygen concentration After rise, the first aerator in system automatic closing gas source system, so as to maintain dissolved oxygen concentration in pond in stable model Enclose.

(2) electrochemical reactor 2：

Sewage is handled in electrochemical reactor 2, and electrochemical reactor 2 can be directed to various types of pollutants and enter Row processing, the mode of main electrochemical reaction are as follows：

1) it is reduced directly：Pollutant directly obtains electronics on negative electrode and reduced, and many metals belong to this kind of reduction process, Meanwhile a variety of chlorinated organics can be made to be transformed into low toxicity material, improve the biodegradability of waste water.

2) indirect reduction：Pollutant is reduced using some reducing substanceses generated in electrochemical process and removed.

3) direct oxidation：Pollutant directly loses electronics in anode and aoxidized, and on the one hand can change noxious material Can be also on the other hand CO by organic matter deep oxidation for innocuous substance₂。

4) indirect oxidation：By in intermediate product of the anode reaction generation with strong oxidation or intermediate reaction generation Between material (OH, O₂、·HO₂Deng free radical) oxidation stain thing, it is finally reached the purpose of degradation of contaminant.

With reference to Fig. 2, the electrochemical reactor 2 of the present embodiment includes cell body, dc source 501, first electrode 502, second Electrode 503, target 505, the second aerator 504, solid catalyst；The second described aerator 504 is arranged at groove Body bottom, first electrode 502, second electrode 503 are arranged at first electrode positioned at both sides inside cell body, target 505 respectively 502nd, between second electrode 503；Catalyst is that particle diameter is more than 4mm solid particles, is distributed in inside cell body, is set on cell body inner surface Screen pack is put, there is interception function to catalyst granules, ensures that catalyst granules recycles in electrochemical reactor 2；Institute The first electrode 502 stated, second electrode 503, target 505 are titanium plate, and electrode material is identical, and cost is relatively low.

The relatively existing electrochemical reaction appts of electrochemical reactor 2, treatment effeciency is high, can be completed to water in 1~3 hour The removal of middle pollutant.Itself main reason is that：1) the multiple targets 505 set can play the effect of bipolar electrode, in Between electrode 505 pole plate on oxidation and reduction reaction can occur simultaneously, the setting of target makes multiple electrodes away from small, electrolysis effect The high electrochemical reaction system of rate is handled simultaneously, greatly strengthens electrochemical reaction efficiency；2) cell body internal accelerator is work Property charcoal/zeolite, is conductive material, powered in electric field action lower surface, turns into a kind of new electrode, oxygen can occur on its surface Change the chemical reaction such as reduction；There is larger specific surface area by activated carbon/zeolite, the mass transfer effect between material obtains larger Improve, under the effect of the second aerator 504, catalyst forms fluidized state, so as to add the effective of sewage and catalyst Contact area, further enhance electrochemical reaction efficiency.

In long-time electrochemical reaction process, a large amount of sediments or passivation are easily adhered on cathode plate, produces electrode The defects of service life is short, needs are often safeguarded, pass through the favourable solution of the design in electrode periodically-varied direction in of the invention Drawbacks described above.First electrode 502, second electrode 503 are connected with the positive and negative electrode of dc source 501, after energization, first electrode 502 are used as anode, and second electrode 503 is used as negative electrode；Dc source 501 is high-frequency direct-current Switching Power Supply, can the setting electric current cycle Property commutation, the sense of current changes, and polarity between first electrode 502 and second electrode 503 is corresponding to change, originally as the moon The sediment of its polar board surface of the second electrode 503 of pole or passivation be oxidized after changing into anode with second electrode 503 and Come off, while be washed with the operation of the second aerator 504, sediment or passivation with the pollutant in dampening, Guarantee does not have deposit or passivation is attached on pole plate, therefore imparts 2 the characteristics of safeguarding free of cleaning of electrochemical reactor.

Two kinds of operational modes of constant current constant voltage can be set in the dc source 501 of electrochemical reactor 2, in the relatively stable bar of water quality Under part, using constant current mode；Under the conditions of variation water quality is larger, using constant voltage mode, ensure the stability of effluent quality.

(3) catalytic reactor 3：

Catalytic reactor 3 is connected with oxidant supplementary device 7, and the continuous defeated of oxidant is carried out by oxidant supplementary device 7 Send.Contain the catalyst corresponding with wastewater pollutants in catalytic reactor 3, chemical catalysis occurs for pollutant in processing procedure Oxidation reaction and degrade, further reduce water body COD value, treatment effeciency is higher, can complete to pollute in 0.5~1 hour The processing of thing.In addition, described catalytic reactor 3 also has the function that to cut down biological sludge.

Electrical control cubicles are the control system of whole device, and the operation of all devices, biological fiber membrane cisterna are controlled by electrical control cubicles 1st, electrochemical reactor 2, catalytic reactor 3, the first detector 5, oxidant supplementary device 7, separator 6, blower fan respectively with electricity Control cabinet is connected.

Using the device of the present embodiment, at sea platform is tested, and influent COD value is 1680mg/L, and ammonia nitrogen concentration is 116mg/L, total phosphorus concentration 13.2mg/L, concentration of suspension 1120mg/L, water outlet COD value are 45.6mg/L, ammonia nitrogen concentration For 50.5mg/L, total phosphorus does not detect, concentration of suspension 10mg/L；Discharge water outlet reaches《Integrated wastewater discharge standard (GB8978-1996)》First discharge standard.

The equipment for reusing the present embodiment is tested in CNOOC's machine center office building, and influent COD value is 865mg/L, Final outflow water suspension can not detect, COD is less than 5mg/L, turbidity after the device processing of the present embodiment<0.5NTU；Discharge Water outlet reaches《Integrated wastewater discharge standard (GB8978-1996)》First discharge standard.

Embodiment 2

The present embodiment is substantially same as Example 1, and difference is：

Described first electrode 502, second electrode 503, target 505 are aluminium sheet, using the soluble sun of the aluminum Pole, after passing to direct current, anode material can dissolve among electrolytic process, form metal cation Al³⁺Deng and in solution Ion form the colloidal substance with flocculation, these materials can promote the colloidal state impurity flocculation sediment in water, so as to real The removal of existing pollutant.

The equipment of the present embodiment is 511mg/L in influent COD value in the experiment of Suizhong land terminal sewage treatment plant, ammonia Nitrogen concentration is 38.4mg/L, total nitrogen concentration 51.1mg/L, total phosphorus concentration 5.12mg/L, and water outlet COD value is 13.4mg/L, ammonia Nitrogen concentration 3.75mg/L, total nitrogen concentration 12.9mg/L, total phosphorus concentration 0.04mg/L, suspension do not detect, colourity<1.The dirt of discharge Water reaches《Integrated wastewater discharge standard (GB8978-2002)》One-level emission standard A.

Offshore platform is mounted with 2 sets of sewage disposal devices, equipment operation a year and a half, platform voluntarily result of laboratory test, just First three day COD value of operation trial operation is 76mg/L, after running one week, then is measured, and COD average values are 42mg/L, continuous prison Survey one week, the average value stabilizations of COD are stable in below 40mg/L, the device water outlet.

By the effluent collection of the device, third party is sent to detect, as a result COD value is 22.7mg/L, ammonia nitrogen concentration 11.8mg/ L, total phosphorus concentration 0.74mg/L, suspension do not detect.Effluent quality is considerably beyond GB 4914-2008《Offshore oil drilling is opened Send out Pollutant emission concentration limit value》In the marine peace of first discharge standard (COD≤300mg/L) and International Maritime Organization (IMO) The discharge standard (COD≤125mg/L) of the full committee (MEPC) MEPC.159 (55) resolutions (being referred to as new standard).

Embodiment 3

The present embodiment is substantially same as Example 1, and difference is：

The device also includes charcoal bed 4, the second return line 303, the 3rd return line 401, the 4th return line 402nd, backwashing pump 9, the second detector 8, described charcoal bed 4 are connected with catalytic reactor 3, and electrochemical reactor 2 passes through Backwashing pump 9 connects charcoal bed 4, and the 4th described return line 402 is connected between charcoal bed 4 and biological fiber membrane cisterna 1, Second detector 8 is connected between catalytic reactor 3, charcoal bed 4, and the water outlet of catalytic reactor 3 is after the detection of the second detector 8 Handle or be expelled directly out into charcoal bed 4.The second described return line 303 is connected to catalytic reactor 3, electrochemical reaction Between device 2；The 3rd described return line 401 is connected between charcoal bed 4, electrochemical reactor 2.

The second described detector 8 is COD detecting instruments, is detected by the water outlet of catalytic reactor 3 into the second detector 8 Afterwards, two pipelines can be divided into according to COD testing results, water outlet up to standard can directly be discharged into the first discharge line 203, do not reached Mark water quality enters charcoal bed 4 by the 4th pipeline 301 and continued with, and is handled through charcoal bed 4, charcoal bed 4 predominantly loads A large amount of adsorbent, catalyst, the bed bodies of oxidant, on the one hand using the huge specific surface area of adsorbent in bed body, are completed to water The rapid absorption of middle organic matter, while remaining organic matter in water, the organic matter on adsorbent are under oxidant, catalyst action Oxidation reaction occurs again, most organic moiety even all carbonizations at last, realize the thorough removal to water pollutant, and it is raw Thing charcoal bed 4 can also carry out the interception and removal of suspension, complete to the further reduction of biological sludge；Handled through charcoal bed 4 Water outlet afterwards is expelled directly out through the second discharge line 403.

The delivery port of charcoal bed 4 is provided with valve body 10, and the controllable water outlet of charcoal bed 4 enters the 3rd return line 401 or the 4th return line 402.In the state of system temporarily ceases operation, once the feelings of the water shortage of electrochemical reactor 2 occur Condition, catalytic reactor 3 can be back to electrochemical reactor 2 by the second return line 303；Meanwhile by application valve body 10, make Water outlet in charcoal bed 4 can be back to electrochemical reactor 2 by the 3rd return line 401, maintain electrochemical reactor 2 There is the state of water, and then protection against oxidation is carried out to parts such as the electrodes in electrochemical reactor 2, realize electrochemical reactor 2 Automatic maintenance.

By long-play, suspended material, inorganic matter, microorganism etc. will be accumulated in charcoal bed 4, the device every 3 It can be cleaned within individual month.Drawn water by backwashing pump 9 from electrochemical reactor 2 and enter charcoal bed 4 by the 3rd pipeline 204, it is right Charcoal bed 4 carries out backwash, and backwash water outlet is controlled by valve body 10 and is back to biological fiber membrane cisterna 1 by the 4th return line 402, profit With the suspended material in the effect removal backwash water quality of the biofiltration of biological fiber membrane cisterna 1, microorganism etc., electrochemical reactor 2 With the cooperating operation of charcoal bed 4, overcoming sewage-treatment plant of the prior art needs often cleaning, maintenance defect, enters one Step reduces cost.

The device of the embodiment is applied to the situation higher to water quality requirement, in the requirements such as rural area, cities and towns reuse on the spot Occasion can play important value.

Xinjiang group is mounted with 1 set of sewage disposal device, and equipment operation has put into operation half a year, chemically examined and tied according to third party Fruit, influent COD value are 956mg/L, ammonia nitrogen 32.2mg/L, total nitrogen 55.8mg/L, total phosphorus 9.5mg/L, and water outlet COD value is 10.7mg/L, ammonia nitrogen concentration 2.6mg/L, total nitrogen 8.9mg/L, total phosphorus concentration 0.65mg/L, suspension do not detect.Water outlet Water quality is far superior to《Integrated wastewater discharge standard (GB8978-2002)》One-level emission standard A.

Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing What is shown is also one of embodiments of the present invention, and actual flow is not limited thereto.So if common skill of this area Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.

Claims (10)

1. A kind of 1. integrated sewage treatment device, it is characterised in that：Including biological fiber membrane cisterna (1), electrochemical reactor (2), Catalytic reactor (3), described biological fiber membrane cisterna (1), electrochemical reactor (2), catalytic reactor (3) are sequentially connected；Institute The electrochemical reactor (2) stated is constant current constant voltage formula reactor；Described electrochemical reactor (2) electrode material is identical, electrode Polarity can be changed mutually.
2. 2. integrated sewage treatment device according to claim 1, it is characterised in that：Also include charcoal bed (4), described Charcoal bed (4) be connected with catalytic reactor (3).
3. 3. integrated sewage treatment device according to claim 1 or 2, it is characterised in that：Including the first detector (5), First detector (5) is arranged on the pipeline between electrochemical reactor (2) and catalytic reactor (3), electrochemical reactor (2) Water outlet enters catalytic reactor (3) after the first detector (5) detection and handles or be expelled directly out.
4. 4. integrated sewage treatment device according to claim 3, it is characterised in that：Also include the first return line (201) it is arranged on separator (6), the separator (6) between electrochemical reactor (2) and the first detector (5), separator (6) connected by the first return line (201) with biological fiber membrane cisterna (1)；Through the water outlet that electrochemical reactor (2) is handled through dividing From suspension water body and clarification water body is divided into after device (6) processing, suspension water body enters at the first return line (201) backflow Reason；Water body is clarified to detect into the first detector (5).
5. 5. integrated sewage treatment device according to claim 1, it is characterised in that：Described electrochemical reactor (2) Including dc source (501), first electrode (502), second electrode (503), described first electrode (502), second electrode (503) it is connected respectively with dc source (501), the polarity of the first electrode (502) and second electrode (503) can mutually turn Change；The first electrode (502), the material of second electrode (503) are any in carbon steel, aluminium, titanium, graphite, carbon fibre material It is a kind of.
6. 6. integrated sewage treatment device according to claim 2, it is characterised in that：Including backwashing pump (9), the 4th backflow Pipeline (402), described electrochemical reactor (2) connect charcoal bed (4), the 4th described return duct by backwashing pump (9) Road (402) is connected between charcoal bed (4) and biological fiber membrane cisterna (1).
7. 7. integrated sewage treatment device according to claim 2, it is characterised in that：It is described including the second detector (8) The second detector (8) be connected between catalytic reactor (3), charcoal bed (4), catalytic reactor (3) water outlet through second inspection Enter charcoal bed (4) processing after surveying device (8) detection or be expelled directly out.
8. 8. integrated sewage treatment device according to claim 1 or 2, it is characterised in that：Including oxidant supplementary device (7), described oxidant supplementary device (7) is connected with catalytic reactor (3)；Described oxidant supplementary device (7) may be used also To connect or not connect with electrochemical reactor (2), charcoal bed (4).
9. 9. integrated sewage treatment device according to claim 2, it is characterised in that：Including the second return line (303), 3rd return line (401), described the second return line (303) are connected to catalytic reactor (3) and electrochemical reactor (2) Between, the 3rd return line (401) is connected between charcoal bed (4) and electrochemical reactor (2).
10. 10. integrated sewage treatment device according to claim 5, it is characterised in that：Described electrochemical reactor (2) Also include cell body, target (505), solid catalyst, the second aerator (504)；Described target (505) is set Between first electrode (502) and second electrode (503), the solid catalyst is arranged inside cell body, the second aerator (504) it is arranged at cell body bottom.