CN209456251U - A kind of acrylic acid waste water treatment system - Google Patents

Abstract

The utility model discloses a kind of acrylic acid waste water treatment system, mainly includes six modules, respectively preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module, in-depth processing module, Treatment of Sludge module and odor purification module；Acrylic acid wastewater sequentially enters preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module and in-depth processing module by pipeline；The final outflow water mouth of Aerobic Process for Treatment module is connected by pipeline with acrylic acid workshop, and the final outflow water for deepening processing module can directly network discharge；It is equipped with mud discharging mouth in preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module and in-depth processing module, mud discharging mouth passes through pipeline and is connected with Treatment of Sludge module；Waste gas collection device is equipped in preprocessing module, Aerobic Process for Treatment module and Treatment of Sludge module, waste gas collection device passes through pipeline and is connected with odor purification module.The utility model has the advantages such as good waste water treatment effect, energy utilization rate are high, pollutant emission is few.

Description

A kind of acrylic acid waste water treatment system

Technical field

The utility model relates to a kind of waste water treatment systems, concretely relate to a kind of acrylic acid waste water treatment system.

Background technique

Can generate a large amount of high concentrated organic wastewaters in acrylicacidandesters class production process, organic concentration is high, at Divide complexity, has significant Ecotoxicology, if direct emission will cause serious pollution.Currently, the place of high concentration acrylic acid wastewater Reason method mainly has incineration method, Wet Catalytic Oxidation Method and biochemical method.Wherein, energy consumption cost when incineration method processing acrylic acid wastewater It is higher and have secondary pollution；Wet Catalytic Oxidation Method has high high temperature resistant, high pressure to reactor material and corrosion-resistant etc. wants It asks, operating cost is high.Acrylic acid wastewater biochemical treatment, especially Anaerobic biotreatment method, be gradually grow up in recent years it is low The problem of consuming, the processing technique of low operating cost, but also facing stability and reliability aspect simultaneously, for the technology of this respect Innovation and improvement are the main direction of development for handling such waste water at present.

A kind of high-concentration aldehyde acrylic wastewater is disclosed in the patent of invention of Patent No. ZL201110358592.0 Integrated conduct method reacts the bio-toxicity for reducing acrylic acid wastewater by full gear, is combined bioanalysis conduct using anaerobic-aerobic Main body treatment process, but be discharged only up to national " integrated wastewater discharge standard " (GB8978-1996) three-level discharge standard, And complex process, capacity of resisting impact load are limited.

A kind of acrylic acid and ester-containing wastewater treatment system are disclosed in the utility model of Patent No. ZL201220216708.7 System, the system, including the submersible sewage pump being arranged in wastewater disposal basin, the former pond that is successively connected to by the road, the first water-delivery pump, mixing are anti- Answer device, the second water-delivery pump, coagulative precipitation tank, third water-delivery pump, anaerobic pond, the first MBR filter device, ozone-mixing device, The control cabinet of two MBR filter devices, active carbon filtering device and discharge water tank and controllable said modules, wherein described Flocculant chemicals dosing plant is provided on pipeline between mixing reactor and the second water-delivery pump.During used filtering film component is Empty fiber membrane component, contamination resistance is weak, and Membrane cleaning trouble, control are complicated.

Disclosed in the patent of invention of Patent No. ZL201410674781.2 it is a kind of handle acrylic acid wastewater device and Method, the device include an iron-carbon micro-electrolysis device, are equipped with a water inlet, fill out inside iron-carbon micro-electrolysis device filled with iron carbon The bottom of material, iron-carbon micro-electrolysis device is equipped with a gas distribution layer, and aerator, aeration dress are equipped in the gas distribution layer Set one air pump of connection；The water outlet of iron-carbon micro-electrolysis device connects conditioning tank, and agitating device is equipped in conditioning tank, and conditioning tank goes out Water connects the water inlet of anaerobic membrane bioreactor by intake pump；It is filled out in anaerobic membrane bioreactor filled with anaerobism combination Expect, the lower part in anaerobic membrane bioreactor is equipped with anaerobic reactor aerator, which passes through one The methane outlet on biogas recirculation pump connection anaerobic membrane bioreactor top, the top of anaerobic reactor aerator is equipped with board-like Membrane module；The water outlet of the plate type membrane component is separately connected a Membrane cleaning pipeline and a water outlet pump；Intake pump and water outlet pump are electrically connected Connect a control system.However, above-mentioned wastewater treatment equipment also only resides within the treatment effect of waste water, water outlet COD reaches " integrated wastewater discharge standard " (GB 8978-1996) secondary discharge standard；For the recycling of give up water reuse, exhaust gas And processing of sludge etc. is all still not perfect.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of this utility model is to provide for a kind of water treatment effect Acrylic acid waste water treatment system good, energy utilization rate is high, pollutant emission is few.

The utility model technical scheme applied to solve the technical problem is: a kind of acrylic acid waste water treatment system, described Waste water treatment system mainly includes six modules, respectively preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module, in-depth Processing module, Treatment of Sludge module and odor purification module；The waste water of acrylic acid workshop sequentially enters pre- place by pipeline Manage module, Anaerobic Treatment module, Aerobic Process for Treatment module and in-depth processing module；The final outflow water mouth of the Aerobic Process for Treatment module is logical Piping is connected with acrylic acid workshop, and the final outflow water of the in-depth processing module can directly network discharge；Described is pre- Mud discharging mouth is equipped in processing module, Anaerobic Treatment module, Aerobic Process for Treatment module and in-depth processing module, in modules Mud discharging mouth pass through pipeline and be connected with Treatment of Sludge module；At the preprocessing module, Aerobic Process for Treatment module and sludge It is equipped with waste gas collection device in reason module, the waste gas collection device in modules passes through pipeline and odor purification module phase Even.

Further, the preprocessing module mainly includes the conditioning tank being sequentially connected, coagulating basin, primary sedimentation tank, intermediate pool, The conditioning tank is mainly used for adjusting the water quality and quantity of waste water；The coagulating basin is equipped with chemicals dosing plant, sets on the primary sedimentation tank There is mud discharging mouth, the mud discharging mouth is connected by pipeline with the Treatment of Sludge module；The intermediate pool, which is equipped with, to be added Medicine device and aerator are additionally provided with PH monitoring device in the intermediate pool, the pH value of waste water in real-time monitoring pond.

Further, the coagulating basin includes two functional areas, is respectively stirred to react area and folded plate reaction zone, described It is stirred to react area to be connected with the conditioning tank, the folded plate reaction zone is connected with the primary sedimentation tank.

Further, the Anaerobic Treatment module mainly includes the anaerobic reation pool being sequentially connected, biogas storage tank, gas-fired boiler Furnace；The water outlet of the intermediate pool is connected with the anaerobic reation pool；The anaerobic reation pool is followed successively by from the bottom to top into water Area, reaction zone, three-phase separation area and collection chamber, the three-phase separation area be equipped with water outlet and mud discharging mouth, it is described go out The mouth of a river is equipped with VFA monitoring device, and the mud discharging mouth is connected with the Treatment of Sludge module；The collection chamber and the natural pond Gas storage tank is connected.

Further, the anaerobic reation pool is UASB reactor.

Further, the Aerobic Process for Treatment module mainly includes the aerobic tank being sequentially connected, secondary settling tank, clear water reserviors, MBR Pond, RO membrane filter；The water outlet of the anaerobic reation pool is connected with the aerobic tank；The aerobic tank is equipped with aeration dress It sets, the secondary settling tank is equipped with mud discharging mouth, and the mud discharging mouth is connected with the Treatment of Sludge module；The RO film mistake Filter is set there are two water outlet, including concentrated water water outlet and middle water water outlet；Wherein, concentrated water water outlet is through piping and aerobic tank It is connected, middle water water outlet is connected through piping with acrylic acid workshop.

Further, the aerator being connected in the preprocessing module with the intermediate pool, the Aerobic Process for Treatment mould The aerator being connected in block with the aerobic tank, above-mentioned two aerator are swirling mixed type aeration device.

Further, the in-depth processing module mainly include the Fenton oxidation tower being sequentially connected, neutralization pond, degassing pond, Flocculation sedimentation tank, the water outlet of the clear water reserviors are connected with the Fenton oxidation tower；The neutralization pond and flocculation sedimentation tank are all provided with There is chemicals dosing plant；The supernatant of the flocculation sedimentation tank can directly network discharge, can also further pass through time sodium oxidation, active carbon Net discharge is reentered after filtering；The Fenton oxidation tower and flocculation sedimentation tank are equipped with mud discharging mouth, each sludge row Mouth is put to be connected with the Treatment of Sludge module.

Further, the Treatment of Sludge module mainly includes sludge concentration tank, filtering equipment and reservoir, the waste water The mud discharging mouth of each module passes through pipeline and is connected with the sludge concentration tank in processing system, and the sludge concentration tank is consolidated Mutually outlet is connected with the filtering equipment, and the liquid-phase outlet of the sludge concentration tank is connected with the reservoir.

It further, include odor purification equipment in the odor purification module, the odor purification equipment is that spray is inhaled Receive tower.

The specific work process of above-mentioned acrylic acid waste water treatment system is as follows:

The waste water that acrylic acid workshop generates initially enters conditioning tank, and conditioning tank water outlet enters coagulating basin, passes through dosing Device adds nutrient required for coagulant and subsequent biochemical processing section into coagulating basin.Coagulating basin includes being stirred to react Area and folded plate reaction zone are added in waste water after coagulant and quickly stir being stirred to react in area, and the micelle in sewage is in coagulant Under the action of loss of stability, take off steady micelle and agglomerated by the agitation of water flow, generation tiny flocculation body；Folded plate of entering again is anti- Area is answered, as the folded plate spacing of folded plate reaction zone increases, water velocity is gradually successively decreased, agglomerated in the tiny floccule body and water of generation The size of wadding body constantly increases, and ultimately forms the good thick floccule body of settling property.Into primary sedimentation tank, water flows from bottom to top, Floccule body particle is sunken to bottom, and clear water is collected on pond top by triangular-notch weir, and sludge is then discharged into sludge by the mud pipe being set in bucket Concentration basin.The supernatant of primary sedimentation tank enters intermediate pool, aerator is equipped in intermediate pool, periodically aeration prevents sludgd deposition in pond Bottom；Effect be carry out water quality, water is sufficiently mixed, uniformly, reduce the impact load to aftertreatment systems, elevator pump according to Level condition adjusts flow.

Intermediate pool water outlet enters anaerobic reation pool by bottom of pond, Sludge Bed reaction zone is flowed through upwards, with waste water and sludge phase Anaerobic reaction occurs for contact, generates biogas (mainly methane and carbon dioxide) and Sludge Bed is caused to disturb, pass through three-phase separation area Separation, water phase by outlet canal drain to aerobic tank (water outlet of anaerobic reation pool be equipped with VFA monitoring device, pass through the VFA of water outlet Value judges the operation conditions of anaerobic reation pool), the microorganism solid phase to precipitate, i.e. anaerobic sludge are by gravitational settling back to instead Area is answered, extra sludge is then emitted into sludge concentration tank, and gas phase (biogas) is collected by collection chamber through pipeline to biogas storage tank, Biogas is delivered to gas fired-boiler again and is used to heat by biogas storage tank, exports steam.

Anaerobic reation pool water outlet enters aerobic tank, and aerobic tank is equipped with aerator, and the dissolved oxygen in aerator exit is not Lower than 2mg/L, the organic matter in waste water further decomposes under the action of aerobic bacteria；Aerobic tank water outlet enters secondary settling tank and is consolidated Liquid separation, mud discharging to sludge concentration tank, supernatant enters clear water reserviors, subsequently into the pond MBR and RO membrane filter, through RO Treated that concentrated water returns to aerobic tank is further degraded for membrane filter, and through RO membrane filter, treated that produce water (middle water) straight It connects for acrylic acid workshop pipe network.

The Fenton oxidation tower that water outlet in clear water reserviors can also be gone successively in in-depth processing module is reprocessed, Yu Shiliang Sulfuric acid, H₂O₂, ferrous composition Fenton-like system in stop 2~2.5 hours, the organic pollutant in waste water is oxidized degradation At CO₂And water, COD are minimized.The water outlet gravity flow of Fenton oxidation tower enters neutralization pond, and lime and liquid is added by chemicals dosing plant Alkali, readjustment waste water PH to alkalescent (7.5~8.5)；Neutralization pond water outlet gravity flow enters degassing pond, is stirred by air blast, by waste water In a small amount of bubble and the removing of remaining hydrogen peroxide；The water outlet of degassing pond adds flocculant in the pond from flowing in flocculation sedimentation tank Seven water aluminium polychloride of PAC() and flocculation aid PAM anionic (polyacrylamide) and sufficiently reacted, make iron cement in waste water Flocculation；Water outlet after flocculation reaction precipitates iron cement therein from sedimentation basin is flow to, the direct qualified discharge of supernatant or using Network discharge after secondary sodium oxidation, active carbon filtering；The iron cement of flocculation sedimentation tank is delivered to Treatment of Sludge mould by mud discharging mouth Block is handled.

The sludge discharged from primary sedimentation tank, anaerobic reation pool, secondary settling tank, Fenton oxidation tower and flocculation sedimentation tank enters sludge Concentration basin is concentrated, and after concentration, opens supernatant fluid valve, supernatant is emitted into reservoir.The dirt of sludge condensation bottom of pond portion Mud through filtering equipment filters pressing, transport outward by obtained dry mud.

Preprocessing module, the aerobic tank in Aerobic Process for Treatment module and secondary settling tank, Treatment of Sludge module, set with odor purification Standby to connect, by level-one spray and second level spray process in odor purification equipment, purified gas can be with direct emission.

The beneficial effects of the utility model are: compared with prior art, acrylic acid waste water process provided by the utility model System include preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module, in-depth processing module, Treatment of Sludge module and Odor purification module, acrylic acid wastewater is after the waste water treatment system, available Treated sewage reusing to acrylic acid workshop, It can also be by qualified discharge direct after waste water advanced purifying；The biogas of generation, which can burn, exports steam heating, and the sludge of generation is most Eventually with the outward transport of dry mud, the foul smell of generation is directly discharged in atmosphere after purified treatment.Whole process substantially increases pollution The stability and efficiency of object removal, have accomplished maximally utilizing for resource, the discharge of the pollutant reduced to the full extent.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Wherein, 1- preprocessing module；The first chemicals dosing plant of 2-；The second chemicals dosing plant of 3-；The first aerator of 4-；5- is adjusted Pond；6- coagulating basin；7- primary sedimentation tank；8- intermediate pool；9- anaerobic reation pool；10- biogas storage tank；11- gas fired-boiler；At 12- anaerobism Manage module；The second aerator of 13-；14- aerobic tank；15- secondary settling tank；16- clear water reserviors；The pond 17-MBR；18-RO membrane filter； 19- Aerobic Process for Treatment module；20- Treatment of Sludge module；21- filtering equipment；22- sludge concentration tank；23- reservoir；24- foul smell is net Change equipment；25- odor purification module；26- Fenton oxidation tower；27- neutralization pond；28- third chemicals dosing plant；29- degassing pond；30- Flocculation sedimentation tank；The 4th chemicals dosing plant of 31-；32- deepens processing module；33- sodium oxidation, active carbon filtering device.

Specific embodiment

For the content of specific explanations the utility model, the utility model is retouched in detail in conjunction with attached drawing and specific embodiment It states.

Embodiment

As shown in Figure 1, a kind of acrylic acid waste water treatment system, the waste water treatment system mainly includes six modules, point It Wei not preprocessing module 1, Anaerobic Treatment module 12, Aerobic Process for Treatment module 19, in-depth processing module 32,20 and of Treatment of Sludge module Odor purification module 25.The final outflow water mouth of the Aerobic Process for Treatment module 19 is connected by pipeline with acrylic acid workshop, institute The final outflow water for stating in-depth processing module 32 can directly network discharge.The preprocessing module 1 mainly includes the tune being sequentially connected Pond 5, coagulating basin 6, primary sedimentation tank 7, intermediate pool 8 are saved, the conditioning tank 5 is mainly used for adjusting the water quality and quantity of waste water；The coagulation Pond 6 is equipped with the first chemicals dosing plant 2, and the coagulating basin 6 includes two functional areas, is respectively stirred to react area and folded plate reaction Area, the area that is stirred to react are connected with the conditioning tank 5, and the folded plate reaction zone is connected with the primary sedimentation tank 7.The primary sedimentation tank 7 are equipped with mud discharging mouth, and the mud discharging mouth is connected by pipeline with the Treatment of Sludge module 20；The intermediate pool 8 It is equipped with the second chemicals dosing plant 3 and the first aerator 4, the aerator is swirling mixed type aeration device.The intermediate pool 8 It is inside additionally provided with PH monitoring device, the pH value of waste water in real-time monitoring pond.

The Anaerobic Treatment module 12 mainly includes anaerobic reation pool 9, the biogas storage tank 10, gas fired-boiler being sequentially connected 11；The water outlet of the intermediate pool 8 is connected with the anaerobic reation pool 9；The anaerobic reation pool 9 be followed successively by from the bottom to top into Pool, reaction zone, three-phase separation area and collection chamber, the three-phase separation area is equipped with water outlet and mud discharging mouth, described Water outlet is equipped with VFA monitoring device, and the mud discharging mouth is connected with the Treatment of Sludge module 20；The collection chamber and institute Biogas storage tank 10 is stated to be connected.The anaerobic reation pool 9 is UASB reactor.

The Aerobic Process for Treatment module 19 mainly includes aerobic tank 14, secondary settling tank 15, the clear water reserviors 16, the pond MBR being sequentially connected 17, RO membrane filter 18；The water outlet of the anaerobic reation pool 9 is connected with the aerobic tank 14；The aerobic tank 14 is equipped with Second aerator 13, the aerator are swirling mixed type aeration device.The secondary settling tank 15 is equipped with mud discharging mouth, institute Mud discharging mouth is stated to be connected with the Treatment of Sludge module 20；The RO membrane filter 18 is set there are two water outlet, including concentrated water Water outlet and middle water water outlet；Wherein, concentrated water water outlet is connected through piping with aerobic tank 14, middle water water outlet through piping with Acrylic acid workshop is connected.

The in-depth processing module 32 mainly includes the Fenton oxidation tower 26 being sequentially connected, neutralization pond 27, degassing pond 29, wadding Solidifying sedimentation basin 30, the water outlet of the clear water reserviors 16 are connected with the Fenton oxidation tower 26；The neutralization pond 27 and flocculation sedimentation Pond 30 is respectively equipped with third chemicals dosing plant 28 and the 4th chemicals dosing plant 31；The supernatant of the flocculation sedimentation tank 30 can directly network Discharge, can also be further by reentering net discharge after time sodium oxidation, the processing of active carbon filtering device 33；The Fenton oxidation tower 26 Be equipped with mud discharging mouth with flocculation sedimentation tank 30, each mud discharging mouth with 20 phase of Treatment of Sludge module Even.

The Treatment of Sludge module 20 mainly includes sludge concentration tank 22, filtering equipment 21 and reservoir 23, the waste water The mud discharging mouth of each module passes through pipeline and is connected with the sludge concentration tank 22 in processing system, the sludge concentration tank 22 Solid-phase outlet be connected with the filtering equipment 21, the liquid-phase outlet of the sludge concentration tank 22 is connected with the reservoir 23. It include odor purification equipment 24 in the odor purification module 25, the odor purification equipment 24 is spray absorber.It is described pre- Waste gas collection device, the exhaust gas in modules are equipped in processing module 1, Aerobic Process for Treatment module 19 and Treatment of Sludge module 20 Collection device passes through pipeline and is connected with odor purification module 25.

The specific work process of above-mentioned acrylic acid waste water treatment system is as follows:

The waste water that acrylic acid workshop generates initially enters conditioning tank 5, and the water outlet of conditioning tank 5 enters coagulating basin 6, by the One chemicals dosing plant 2 adds nutrient required for coagulant and subsequent biochemical processing section into coagulating basin 6.Coagulating basin 6 wraps It includes and is stirred to react area and folded plate reaction zone, be added in waste water after coagulant and quickly stir being stirred to react in area, the glue in sewage Grain loss of stability under the action of coagulant takes off steady micelle and agglomerates by the agitation of water flow, generates tiny flocculation body；Again Enter folded plate reaction zone, as the folded plate spacing of folded plate reaction zone increases, water velocity is gradually successively decreased, and the tiny wadding of generation is agglomerated The size of wadding body constantly increases in solidifying body and water, ultimately forms the good thick floccule body of settling property.Into primary sedimentation tank 7, water by Under flow up, floccule body particle is sunken to bottom, and clear water is collected on pond top by triangular-notch weir, sludge then by be set to bucket in mud Pipe is discharged into sludge concentration tank 22.The supernatant of primary sedimentation tank 7 enters intermediate pool 8, is equipped with the first aerator 4 in intermediate pool 8, periodically Aeration prevents sludgd deposition in bottom of pond；Effect be carry out water quality, water is sufficiently mixed, uniformly, reduce to aftertreatment systems Impact load, elevator pump according to level condition adjust flow.

The water outlet of intermediate pool 8 enters anaerobic reation pool 9 by bottom of pond, Sludge Bed reaction zone is flowed through upwards, with waste water and sludge It is in contact and anaerobic reaction occurs, generate biogas (mainly methane and carbon dioxide) and Sludge Bed is caused to disturb, pass through three phase separation Area's separation, water phase are equipped with VFA monitoring device by the water outlet that outlet canal is drained to aerobic tank 14(anaerobic reation pool 9, pass through water outlet VFA value judge the operation conditions of anaerobic reation pool 9), the microorganism solid phase to precipitate, i.e. anaerobic sludge is returned by gravitational settling Reaction zone is returned to, extra sludge is then emitted into sludge concentration tank 22, and gas phase (biogas) is collected through pipeline extremely by collection chamber Biogas is delivered to gas fired-boiler 11 again and is used to heat by biogas storage tank 10, biogas storage tank 10, exports steam.

The water outlet of anaerobic reation pool 9 enters aerobic tank 14, and aerobic tank 14 is equipped with the second aerator 13, aerator exit Dissolved oxygen be not less than 2mg/L, the organic matter in waste water further decomposes under the action of aerobic bacteria；The water outlet of aerobic tank 14 enters Secondary settling tank 15 is separated by solid-liquid separation, and for mud discharging to sludge concentration tank 22, supernatant enters clear water reserviors 16, subsequently into the pond MBR 17 and RO membrane filter 18, through RO membrane filter 18, treated that concentrated water returns to aerobic tank 14 is further degraded, through RO Membrane filter 18 treated produce water (middle water) directly for acrylic acid workshop pipe network.

The Fenton oxidation tower 26 that water outlet in clear water reserviors 16 can also be gone successively in in-depth processing module 32 is reprocessed, In suitable sulfuric acid, H₂O₂, ferrous composition Fenton-like system in stop 2~2.5 hours, the organic pollutant in waste water is by oxygen Change is degraded into CO₂And water, COD are minimized.The water outlet gravity flow of Fenton oxidation tower 26 enters neutralization pond 27, passes through third chemicals dosing plant 28 are added lime and liquid alkaline, readjustment waste water PH to alkalescent (7.5~8.5)；The water outlet gravity flow of neutralization pond 27 enters degassing pond 29, leads to Air blast stirring is crossed, a small amount of bubble in waste water is removed with remaining hydrogen peroxide；The water outlet of degassing pond 29 flow to flocculation sedimentation tank 30 certainly In, seven water aluminium polychloride of flocculant PAC(is added by the 4th chemicals dosing plant 31 in the pond) and flocculation aid PAM anionic It (polyacrylamide) and is sufficiently reacted, iron cement in waste water is made to flocculate；Water outlet after flocculation reaction is from sedimentation basin is flow to, by it In iron cement precipitating, the direct qualified discharge of supernatant or using secondary sodium oxidation, active carbon filtering device 33 processing after network arrange It puts；The iron cement of flocculation sedimentation tank 30 is delivered to Treatment of Sludge module 20 by mud discharging mouth and is handled.

The sludge discharged from primary sedimentation tank 7, anaerobic reation pool 9, secondary settling tank 15, Fenton oxidation tower 26 and flocculation sedimentation tank 30 It is concentrated into sludge concentration tank 22, after concentration, opens supernatant fluid valve, supernatant is emitted into reservoir 23.Sludge is dense The sludge of 22 bottom of contracting pond through 21 filters pressing of filtering equipment, transport outward by obtained dry mud.

Aerobic tank 14 and secondary settling tank 15 in preprocessing module 1, Aerobic Process for Treatment module 19, Treatment of Sludge module 20, with Odor purification equipment 24 connects, and by level-one spray and second level spray process in odor purification equipment 24, purified gas can With direct emission.

Acrylic acid waste water treatment system provided by the utility model includes preprocessing module 1, Anaerobic Treatment module 12, good Oxygen processing module 19, in-depth processing module 32, Treatment of Sludge module 20 and odor purification module 25, acrylic acid wastewater is by being somebody's turn to do After waste water treatment system, available Treated sewage reusing to acrylic acid workshop, can also will after waste water advanced purifying directly it is up to standard Discharge；The biogas of generation, which can burn, exports steam heating, and the sludge of generation is finally with the outward transport of dry mud, and the foul smell of generation is by net It is directly discharged in atmosphere after change processing.Whole process substantially increases the stability and efficiency of pollutant removal, has accomplished money Source maximally utilizes, the discharge of the pollutant reduced to the full extent.

Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered It is defined by the claims.

Claims (10)

1. a kind of acrylic acid waste water treatment system, it is characterised in that: the waste water treatment system mainly includes six modules, respectively For preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module, in-depth processing module, Treatment of Sludge module and odor purification mould Block；The waste water of acrylic acid workshop by pipeline sequentially enter preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module and Deepen processing module；The final outflow water mouth of the Aerobic Process for Treatment module is connected by pipeline with acrylic acid workshop, the depth The final outflow water for changing processing module can directly network discharge；The preprocessing module, Anaerobic Treatment module, Aerobic Process for Treatment module And it is equipped with mud discharging mouth in in-depth processing module, the mud discharging mouth in modules passes through pipeline and Treatment of Sludge mould Block is connected；Waste gas collection device, modules are equipped in the preprocessing module, Aerobic Process for Treatment module and Treatment of Sludge module In waste gas collection device pass through pipeline and be connected with odor purification module.

2. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the preprocessing module is main Including conditioning tank, coagulating basin, primary sedimentation tank, the intermediate pool being sequentially connected, the conditioning tank is mainly used for adjusting the water quality water of waste water Amount；The coagulating basin is equipped with chemicals dosing plant, and the primary sedimentation tank is equipped with mud discharging mouth, and the mud discharging mouth passes through pipeline It is connected with the Treatment of Sludge module；The intermediate pool is equipped with chemicals dosing plant and aerator, is additionally provided in the intermediate pool PH monitoring device, the pH value of waste water in real-time monitoring pond.

3. a kind of acrylic acid waste water treatment system according to claim 2, it is characterised in that: the coagulating basin includes two Functional areas are respectively stirred to react area and folded plate reaction zone, and the area that is stirred to react is connected with the conditioning tank, and the folded plate is anti- Area is answered to be connected with the primary sedimentation tank.

4. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the Anaerobic Treatment module master It to include anaerobic reation pool, the biogas storage tank, gas fired-boiler being sequentially connected；The water outlet of intermediate pool and the anaerobic reation pool phase Even；The anaerobic reation pool is followed successively by inhalant region, reaction zone, three-phase separation area and collection chamber, the three-phase from the bottom to top Disengagement zone is equipped with water outlet and mud discharging mouth, and the water outlet is equipped with VFA monitoring device, the mud discharging mouth and institute Treatment of Sludge module is stated to be connected；The collection chamber is connected with the biogas storage tank.

5. a kind of acrylic acid waste water treatment system according to claim 4, it is characterised in that: the anaerobic reation pool is UASB reactor.

6. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the Aerobic Process for Treatment module master It to include aerobic tank, secondary settling tank, clear water reserviors, the pond MBR, the RO membrane filter being sequentially connected；The water outlet of the anaerobic reation pool It is connected with the aerobic tank；The aerobic tank is equipped with aerator, and the secondary settling tank is equipped with mud discharging mouth, the sludge Discharge outlet is connected with the Treatment of Sludge module；The RO membrane filter is set there are two water outlet, including concentrated water water outlet and in Water water outlet；Wherein, concentrated water water outlet is connected through piping with aerobic tank, and middle water water outlet produces vehicle through piping and acrylic acid Between be connected.

7. a kind of acrylic acid waste water treatment system according to claim 2 or 6, it is characterised in that: the preprocessing module In the aerator that is connected with intermediate pool, the aerator being connected in the Aerobic Process for Treatment module with the aerobic tank, above-mentioned two A aerator is swirling mixed type aeration device.

8. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the in-depth processing module master It to include the Fenton oxidation tower being sequentially connected, neutralization pond, deaerate pond, flocculation sedimentation tank, the water outlet of clear water reserviors and the Fenton Oxidizing tower is connected；The neutralization pond and flocculation sedimentation tank are equipped with chemicals dosing plant；The supernatant of the flocculation sedimentation tank can be direct Network discharge, can also be further by reentering net discharge after time sodium oxidation, active carbon filtering；The Fenton oxidation tower and flocculation are heavy Shallow lake pond is equipped with mud discharging mouth, and each mud discharging mouth is connected with the Treatment of Sludge module.

9. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the Treatment of Sludge module master It to include sludge concentration tank, filtering equipment and reservoir, the mud discharging mouth of each module passes through in the waste water treatment system Pipeline is connected with the sludge concentration tank, and the solid-phase outlet of the sludge concentration tank is connected with the filtering equipment, the sludge The liquid-phase outlet of concentration basin is connected with the reservoir.

10. a kind of acrylic acid waste water treatment system according to claim 1, it is characterised in that: the odor purification module In include odor purification equipment, the odor purification equipment be spray absorber.