CN207608457U - A kind of road tank car cleaning station integrated wastewater recycling and processing equipment - Google Patents

Abstract

The utility model is related to a kind of road tank car cleaning station integrated wastewater recycling and processing equipments, it includes：Anaerobic reation pool, oil separator, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reaction tanks, reuse sink, cleaning device, Domestic sewage collecting pond, septic tank and biogas air bag, the anaerobic reation pool are made of the interlayer outside anaerobic reaction bucket and anaerobic reaction bucket.Cleaning waste water, sanitary sewage and the septic tank wastewater that road tank car cleaning station generates can be jointly processed by by the utility model, efficiently solve the fuel problem needed for cleaning station heating boiler, and the waste heat for taking full advantage of ejected wash water realizes cycling utilization of wastewater target and " zero-emission " target.

Description

A kind of road tank car cleaning station integrated wastewater recycling and processing equipment

Technical field

The utility model is related to a kind of road tank car cleaning station integrated wastewater recycling and processing equipments, belong at industrial wastewater Technical field is managed, realizes road tank car cleaning station cycling utilization of wastewater and " zero-emission " target.

Background technology

Road tank car is the important tool contained with transporting oil, has in the major petrochemical refining base in China and answers extensively With since the fast development road tank car quantity and capacity of highway construction are also increasing and are expanding year by year.One large-scale petrochemical It is 6000 or more that base, which averagely possesses tank car quantity, and cleaning 10 times every year of average each car, 50 tons of each water consumption, whole year will disappear Consume 3,000,000 tons of water.About 3 yuan/ton of industrial water, is recycled after processing, and conserve water 9,000,000 yuan/year, has very big Economic benefit.Secondly, the raising recently as whole society's environmental consciousness and the upgrading required environmental protection standard, items pollution are controlled Reason measure dynamics is increasing, and the pollution problem of oil truck causes the extensive concern of environmental worker.Oil truck the material that changes the outfit, Generated first in periodic cleaning and maintenance process the filled oil types of a large amount of sewage, especially tank car difference cause sewage at Point complexity, sewage oil content often more than 500mg/L, while may containing the toxicity such as sulfide, benzene, volatile phenol and lead tetraethide compared with Big pollutant causes the serious pollution of surrounding enviroment.

Processing for oily waste water, frequently with " oil removal-coagulation/air supporting-biochemistry " old three sets for the treatment of process.But due to oil Tank car with water is high-temperature water or high-temperature steam when cleaning, and leaving water temperature is still very high after cleaning, and 55 DEG C of average out to, ejected wash water is excessively high Temperature be unfavorable for biochemical treatment.Secondly, after HIGH TEMPERATURE PURGE water is directly discharged into oil separator, oil removal effect is reduced, deepens the breast of oil Change degree handles organic loading to increase subsequent biochemical.So usually oil truck cleaning station can be arranged before oil separator it is slow Pond is rushed, to reduce temperature, but this can cause a large amount of waste heat to be wasted, and in energy saving unfavorable, while also will produce atmosphere pollution.Cause This, oil truck ejected wash water water quality has particularity so that conventional coagulation and biochemical process treatment effeciency is low, it is difficult to meet it and reach Mark the requirement of discharge.Again, cleaning tank car water requirement is big, laggard to tank car cleaning water process according to current environmentally friendly development situation Row reuse is the developing direction of this wastewater processing technology, for oil truck cleaning station generate all kinds of sewage and use water feature, Utility model carries out special designing to anaerobic device and processing system, efficiently uses oil truck ejected wash water waste heat, greatly reduces Oily emulsification degree in waste water improves oil removal efficiency about 15% or more, and thus significantly reduces subsequent biochemical load, improves Treatment effect improves anaerobic reactor biogas output and quality in particular with septic tank wastewater, supplies boiler energy, maximum journey 30% or more operating cost is saved in the reduction oil truck cleaning station energy consumption of degree, material consumption, is discharged after processing and is reached railway recycle-water water Matter standard（TB 3007-2000）, finally realize the target of oil truck cleaning station circular economy and " zero-emission ".

Utility model content

The utility model is directed to oil truck cleaning station water and ejected wash water feature, and it is dirty to provide a kind of road tank car cleaning station Water comprehensive recycling processing unit, it can enable the waste heat of ejected wash water utilize, and effectively improve oil removal effect and Biochemical Treatment, And anaerobic reactor biogas output and quality are improved using septic tank wastewater, closed circuit follow is formed to all kinds of sewage integration processing Ring has saved floor space, reduces by 30% or more operating cost, finally realizes the target of circular economy and " zero-emission ".

To achieve the above object, the utility model provides the following technical solutions：A kind of road tank car cleaning station sewage is comprehensive Recycling and processing equipment is closed, it includes：Anaerobic reation pool, oil separator, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reactions Pond, reuse sink, cleaning device, Domestic sewage collecting pond, septic tank and biogas air bag, the anaerobic reation pool is by anaerobic reaction Interlayer outside bucket and anaerobic reaction bucket forms, and the cleaning water outs after the flushing oil truck of the cleaning device meet institute through suction pump State the cleaning water inlet of interlayer bottom, the cleaning water outs on the interlayer top through the first draining pump connect in the middle part of the oil separator into The mouth of a river, oil separator middle and lower part water outlet connect water inlet in the middle part of the coagulating basin, the coagulating basin top through the second draining pump Water outlet connects the anaerobic reaction bottom of the barrel water inlet through third draining pump, and 44 water outlet of Domestic sewage collecting pond is through the 9th Draining pump 43 connects anaerobic reaction bottom of the barrel water inlet, and 41 water outlet of the septic tank connects the anaerobic reaction through the first sludge pump 42 4 bottom feed inlets of bucket, the methane outlet of the anaerobic reaction bucket 4 connect the biogas import of the biogas air bag through the second control valve, Anaerobic reaction bucket top water outlet connects the aerobic reaction tank water inlet, the aerobic reaction tank water outlet through the 4th draining pump Mouth connects the sedimentation basin water inlet through the 5th draining pump, and the sedimentation basin water outlet meets the Fenton through the 6th draining pump and reacts Pond water inlet, the Fenton reaction tanks water outlet connect the reuse sink water inlet through the 7th draining pump.

As the further scheme of the utility model, the bottom plate of the interlayer on the anaerobic reation pool tilts 20 ° to side.

As the further scheme of the utility model, the anaerobic reation pool is supported by supporting rack, the bottom plate upper surface The mud discharging mouth of low side connects the anaerobic reaction bottom of the barrel feed inlet through the second sludge pump.

Chemical feed pipe, the first pH value detector and the are equipped with as the further scheme of the utility model, in the coagulating basin One blender；Setting plus H in the Fenton reaction tanks₂O₂Pipe plus Fe²⁺Pipe, first adjust pH value pipe, the second pH value detector and Second blender；The reuse sink adjusts pH value pipe, third pH value detector and third blender equipped with second.

As the further scheme of the utility model, the anaerobic reaction bucket is to be thoroughly mixed formula anaerobic reactor （CSTR）, anaerobic filter（AF）, Anaerobic Sequencing Bath Reactor（ASBR）, anaerobic baffle reactor（ABR）, upflow anaerobic sludge Bed（UASB）, it is anaerobic expanded granular sludge bed（EGSB）Or interior cycle（IC）Reactor；The oil separator be parallel flow intercepter, Sloping plate oil separation tank；The aerobic reaction tank is aerobic activated sludge process reactor；The sedimentation basin is rectangular sedimentation tank, spoke stream Formula sedimentation basin or inclined-plate clarifying basin.

Compared with prior art, the utility model has the beneficial effects that：A kind of road tank car cleaning station integrated wastewater time With processing unit, have the following advantages that：

One：Road tank car ejected wash water has the characteristics that temperature is high, and the utility model is special to anaerobic reactor part Design had not only effectively recycled the after-heat of oil truck ejected wash water, but also was conducive to that anaerobic reactor temperature is maintained to stablize, especially Keep 10-15 ° of anaerobism temperature or more extremely important to keeping the methane production that anaerobic reactor is stablized to have under winter low temperature condition Meaning.Secondly, the utilization of oil truck ejected wash water waste heat substantially reduces emulsification degree oily in waste water, improves follow-up oil removal Effect and biochemical effects reduce Fenton dosings.Simultaneously as UTILIZATION OF VESIDUAL HEAT IN sets ejected wash water water storage before eliminating oil separator The process of slot has the small advantage low with construction cost of construction area, integrated operation cost reduction about 30% or more.

Two：The mode that sanitary sewage, septic tank wastewater and ejected wash water that road tank car cleaning station generates are jointly processed by, Chemical toxicity in ejected wash water is reduced, increases the anaerobic digestion effect to organic macromolecule pollutant in water, especially increases Fermentation methane phase ability.Methane concentration is about 60% in usual biomass anaerobic aerogenesis, dirty by introducing life in the utility model Water and septic tank wastewater mode, make methane concentration reach 70% or more, efficiently solve the problems, such as cleaning station boiler oil, realize " three It is useless " recycling treatment, therefore realize the theory of recycling industries and clean production.

Three：Highway in China oil truck cleaning station not yet carries out sewage the technology and process equipment of Treatment for Reuse at present, All kinds of waste water that cleaning station generates more integrate the method and technique of processing, existing sewage disposal is using " oil removal-is mixed The old three sets for the treatment of process of solidifying/air supporting-biochemistry ".The utility model develops new technological process and equipment on this basis, makes place Water outlet reaches railway quality of reused water standard after reason（TB 3007-2000）, COD ＜ 50mg/L, oily ＜ 1mg/L, ammonia nitrogen ＜ 5mg/L, turbidity ＜ 3NUT, colorless and odorless, and realize waste water zero emission target.

Description of the drawings

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

Fig. 2 is the structural schematic diagram of the anaerobic reation pool of the utility model.

1- suction pumps in the figure, 2- anaerobic reation pools, 3- interlayers, 4- anaerobic reaction buckets, 5- mud discharging mouths, 6- supporting racks, 7- Bottom plate, 8- biogas air bags, the second sludge pumps of 9-, the first draining pumps of 10-, 11- oil separators, the second draining pumps of 12-, 13- coagulations Pond, 14- chemical feed pipes, 15- the first pH value detectors, the first blenders of 16-, 17- third draining pumps, the second control valves of 18-, 19- 4th draining pump, 20- aerobic reaction tanks, the 5th draining pumps of 21-, 22- sedimentation basins, the 6th draining pumps of 23-, 24- Fenton reactions Pond, 25- add H₂O₂Pipe, 26- add Fe²⁺Pipe, 27- first adjust pH value pipe, 28- the second pH value detectors, the second blenders of 29-, 30- 7th draining pump, 31- reuse sinks, 32- second adjust pH value pipe, 33- third pH value detectors, 34- third blenders, 35- the Eight draining pumps, 36- heating boilers, the 4th control valves of 37-, 38- third control valves, the first control valves of 39-, 40- cleaning devices, 41- septic tanks, the first sludge pumps of 42-, the 9th draining pumps of 43-, 44- Domestic sewage collectings pond.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Please refer to Fig.1-2, in the utility model embodiment, a kind of road tank car cleaning station integrated wastewater Treatment for Reuse dress It sets, it includes：Anaerobic reation pool 2, oil separator 11, coagulating basin 13, aerobic reaction tank 20, sedimentation basin 22, Fenton reaction tanks 24, Reuse sink 31, cleaning device 40, Domestic sewage collecting pond 44, septic tank 41 and biogas air bag 8, the anaerobic reation pool 2 Quantity can be configured according to daily cleaning tank car quantity and average water yield, to ensure that sufficient anaerobism time, anaerobic reation pool 2 are total 20 volume of volumetric ratio aerobic reaction tank is 3 times big, and anaerobic reation pool 2 is circle, is divided into inside and outside two layers, the anaerobic reation pool 2 by Interlayer 3 outside anaerobic reaction bucket 4 and anaerobic reaction bucket forms, the cleaning water outs of the cleaning device 40 rinsed after oil truck The cleaning water inlet of 3 bottom of the interlayer is connect through suction pump 1, the cleaning water outs on 3 top of the interlayer are through the first draining pump 10 11 middle part water inlet of the oil separator is connect, 11 middle and lower part water outlet of the oil separator connects the coagulating basin 13 through the second draining pump 12 Middle part water inlet, 13 top water outlet of the coagulating basin meet 4 bottom water inlet of the anaerobic reaction bucket, institute through third draining pump 17 It states 44 water outlet of Domestic sewage collecting pond and connects 4 bottom water inlet of anaerobic reaction bucket through the 9th draining pump 43, the septic tank 41 goes out The first sludge pump of the mouth of a river 42 connects 4 bottom feed inlet of the anaerobic reaction bucket, and the methane outlet of the anaerobic reaction bucket 4 is through second Control valve 18 connects the biogas import of the biogas air bag 8, and 4 top water outlet of the anaerobic reaction bucket meets institute through the 4th draining pump 19 20 water inlet of aerobic reaction tank is stated, 20 water outlet of the aerobic reaction tank connects the sedimentation basin 22 through the 5th draining pump 21 and intakes Mouthful, 22 water outlet of the sedimentation basin connects 24 water inlet of Fenton reaction tanks, the Fenton reactions through the 6th draining pump 23 24 water outlet of pond connects 31 water inlet of reuse sink through the 7th draining pump 30.The quantity that Fenton reaction tanks 24 configure can basis It is used in parallel depending on needing, it can temporarily be used as aqua storage tank after completion of the reaction, reduce floor space.

As shown in Figure 1,31 water outlet of reuse sink connects heating boiler 36, the heating boiler through the 8th draining pump 35 36 steam (vapor) outlets connect 40 hot water inlet of the cleaning device through the first control valve 39, and 8 methane outlet of biogas air bag is through third Control valve 38, the 4th control valve 37 connect 36 biogas import of the heating boiler, in this way, fuel needed for heating boiler 36 is anti-by anaerobism Answer the biogas supply that pond 2 generates.

As shown in Figure 1, the bottom plate 7 of the interlayer 3 on the anaerobic reation pool 2 tilts 20 ° to side, so as to by flushing oil tank The collection and discharge of the sediments such as greasy filth are generated when vehicle；The anaerobic reation pool 2 is supported by supporting rack 6, and the setting of supporting rack 6 is being detested 2 bottom margin of oxygen reaction tank is to protect interlayer；The mud discharging mouth 5 of 7 upper surface low side of the bottom plate connects through the second sludge pump 9 described to be detested 4 bottom feed inlet of oxygen reaction container, mud discharging mouth 5 are connected by the second sludge pump 9 with 4 feed inlet of anaerobic reaction bucket, such greasy filth into Enter and decomposed in anaerobic reaction bucket 4, is greatly reduced by the quantity of solid waste for the vehicle generation that cleans the storage.

As shown in Figure 1, being equipped with chemical feed pipe 14, the first pH value detector 15 and the first blender 16 in the coagulating basin 13； Setting plus H in the Fenton reaction tanks 24₂O₂Pipe 25 plus Fe²⁺Pipe 26, first adjusts pH value pipe 27, the second pH value detector 28 And second blender 29；The reuse sink 31 adjusts pH value pipe 32, third pH value detector 33 and third blender equipped with second 34。

The anaerobic reaction bucket 4 is to be thoroughly mixed formula anaerobic reactor, anaerobic filter, Anaerobic Sequencing Bath Reactor, anaerobism Baffle reactor, up-flow anaerobic sludge blanket, anaerobic expanded granular sludge bed or inner circulation reactor；The oil separator 11 is flat Streaming oil separator, sloping plate oil separation tank；The aerobic reaction tank 20 is aerobic activated sludge process reactor；The sedimentation basin 22 is flat Flow settling pond, radical sedimentation basin or inclined-plate clarifying basin.

Application examples one：

Using Maoming City oil truck cleaning station as objective for implementation, oil truck ejected wash water is in yellow or yellow-gray, temperature 58 ° of degree, turbidity 611NUT, with pungent oily taste, 583.12 4991.5 mg/L of mg/L, COD of oil-containing, ammonia nitrogen 24.19 Mg/L, 114 mg/L of ss suspended solid, pH value 8.36.Cleaning station sanitary sewage pH value 7.39,181.6 mg/L of COD, ammonia nitrogen 23.5 mg/L, ss suspended solid 62mg/L.Septic tank wastewater pH value 7.96,32065.7 mg/L of COD, 6937.8 mg/ of ammonia nitrogen L, VS/TS is 70.4.

Ejected wash water after flushing oil truck in cleaning device 40 is directly squeezed into the interlayer 3 of anaerobic reation pool 2 by suction pump 1 Bottom, in the application example 4 use of anaerobic reaction bucket be thoroughly mixed formula anaerobic reactor.Ejected wash water in interlayer 3 and anaerobic reaction Bucket fully carries out heat exchange, and 4 temperature of anaerobic reaction bucket is maintained to maintain 4 temperature of anaerobic reaction bucket at 22 ° or more, winter in this way 10-15 ° or more, oil separator 11 is discharged into through the first draining pump after 8 hours residence times by 3 top discharge outlet of interlayer.This mode Not only flushing water heat had been recycled, but also has reduced emulsification degree oily in flushing water, so that oil separator oil removal rate is improved 15% or more, has Conducive to subsequent biochemical processing.

The water outlet of oil separator 11 is discharged by the second draining pump 12 in coagulating basin 13 by middle and lower part water outlet, in the application example Oil separator 11 is parallel flow intercepter, and 483.42 2963 mg/L of mg/L, COD of oil-containing is discharged after oil removal.It is added in coagulating basin 13 Coagulant be polyaluminium sulfate, dosage 0.5g/L is first configured to saturated solution before being added, is added by chemical feed pipe 14, logical It crosses the first blender 16 to be stirred, stirring stops standing 1 hour after twenty minutes.

The water outlet of 13 top of coagulating basin enters anaerobic reaction bucket 4 through third draining pump 17, and 4 volumetric ratio of anaerobic reaction bucket is aerobic anti- Answer pool volume 3 times big.Sludge concentration is maintained at 6000mg/L or more, and sludge is 1 with the cleaning water volume ratio after coagulating treatment: 2.5。

The sanitary sewage and septic tank wastewater that cleaning station generates all are squeezed into anaerobic reaction bucket 4, and anaerobic reaction bucket is kept Interior TS 10%.Hydraulic detention time is 3 days, and COD, oily removal rate are respectively 60%, 45%.Anaerobic gas generation rate is 0.47L/gVS, Methane content 72%, biogas supply heating boiler as the energy.

The water outlet of anaerobic reaction bucket 4 enters aerobic reaction tank 20 through the 4th draining pump 19.Aerobic reaction tank 20 in the application example For aerobic activated sludge process reaction tank, sludge concentration is maintained at 3260mg/L, and the control of aeration phase dissolved oxygen is exposed in 3.5mg/L After the gas time is 6h, COD, oily removal rate are respectively 86%, 65%.The water outlet of aerobic reaction tank 20 enters through the 5th draining pump 21 Sedimentation basin 22, sedimentation basin 22 is rectangular sedimentation tank in the application example.The water outlet of sedimentation basin 22 enters through the 6th draining pump 23 After Fenton reaction tanks 24, it is separately added into 30% H₂O₂、FeSO₄•7H₂O, the two molar ratio is 1:20, adjust pH with the sulfuric acid of 5M Value 3.0 stands 1.5h after stirring 1h, and the water outlet of Fenton reaction tanks 24 is discharged into reuse sink 31 by the 7th draining pump 30, It adjusts pH value pipe 32 that saturation NaOH solution is added by second, adjusts pH value 7.0, stir and evenly mix, be discharged COD 30.2mg/L, oil at this time 0.29 mg/L, 1.71 mg/L of ammonia nitrogen, turbidity ＜ 3NUT, water white transparency.The water outlet of reuse sink 31 enters in heating boiler 36, adds It is used as ejected wash water after heat.

The utility model handles sanitary sewage and septic tank wastewater together with ejected wash water, and methane is generated by anaerobic processes As the energy of heating boiler, the waste heat of ejected wash water is taken full advantage of by the special designing to anaerobic device, eliminates oil removal The process of ejected wash water aqua storage tank is set before pond, so that ejected wash water is carried out reuse, is reduced oil truck cleaning station energy to the greatest extent Consumption, material consumption have the characteristics that save construction area and reducing the construction costs, while also reducing cleaning cost, therefore realize and follow The theory of ring economy and clean manufacturing.

Claims (8)

1. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment, which is characterized in that it includes：Anaerobic reation pool, Oil separator, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reaction tanks, reuse sink, cleaning device, Domestic sewage collecting Pond, septic tank and biogas air bag, the anaerobic reation pool are made of the interlayer outside anaerobic reaction bucket and anaerobic reaction bucket, described clear Cleaning water outs after the flushing oil truck of cleaning device connect the cleaning water inlet of the interlayer bottom through suction pump, on the interlayer The cleaning water outs in portion connect water inlet in the middle part of the oil separator through the first draining pump, and oil separator middle and lower part water outlet is through second Draining pump connects water inlet in the middle part of the coagulating basin, and coagulating basin top water outlet connects the anaerobic reaction bucket through third draining pump Bottom water inlet, Domestic sewage collecting pond water outlet connect anaerobic reaction bottom of the barrel water inlet, describedization through the 9th draining pump Manure pit water outlet connects the anaerobic reaction bottom of the barrel feed inlet through the first sludge pump, and the methane outlet of the anaerobic reaction bucket is through Two control valves connect the biogas import of the biogas air bag, and it is described good that anaerobic reaction bucket top water outlet connects through the 4th draining pump Oxygen reaction tank water inlet, the aerobic reaction tank water outlet connect the sedimentation basin water inlet, the sedimentation basin through the 5th draining pump Water outlet connects the Fenton reaction tanks water inlet through the 6th draining pump, and the Fenton reaction tanks water outlet is through the 7th draining pump Connect the reuse sink water inlet.

2. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that The bottom plate of interlayer on the anaerobic reation pool tilts 20 ° to side.

3. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 2, which is characterized in that The anaerobic reation pool is supported by supporting rack, and it is anti-that the mud discharging mouth of bottom plate upper surface low side through the second sludge pump connects the anaerobism Answer bottom of the barrel feed inlet.

4. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that Chemical feed pipe, the first pH value detector and the first blender are equipped in the coagulating basin；Setting plus H in the Fenton reaction tanks₂O₂ Pipe plus Fe²⁺Pipe, first adjust pH value pipe, the second pH value detector and the second blender；The reuse sink adjusts pH value equipped with second Pipe, third pH value detector and third blender.

5. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that The anaerobic reaction bucket is to be thoroughly mixed formula anaerobic reactor, anaerobic filter, Anaerobic Sequencing Bath Reactor, the reaction of anaerobism baffle Device, up-flow anaerobic sludge blanket, anaerobic expanded granular sludge bed or inner circulation reactor.

6. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that The oil separator is parallel flow intercepter or sloping plate oil separation tank.

7. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that The aerobic reaction tank is aerobic activated sludge process reactor.

8. a kind of road tank car cleaning station integrated wastewater recycling and processing equipment according to claim 1, which is characterized in that The sedimentation basin is rectangular sedimentation tank, radical sedimentation basin or inclined-plate clarifying basin.