CN106315718B - A kind of energy conservation molasses alcohol liquid treating system, method and its evaporation concentration equipment - Google Patents
A kind of energy conservation molasses alcohol liquid treating system, method and its evaporation concentration equipment Download PDFInfo
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- CN106315718B CN106315718B CN201610858760.5A CN201610858760A CN106315718B CN 106315718 B CN106315718 B CN 106315718B CN 201610858760 A CN201610858760 A CN 201610858760A CN 106315718 B CN106315718 B CN 106315718B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The present invention provides a kind of evaporation concentration equipment for molasses alcohol waste liquid processing, including sequentially connected boiler, multi-effect evaporator and drying unit, the boiler provides steam for the multi-effect evaporator, to be evaporated concentration to the molasses alcohol waste liquid for entering the multi-effect evaporator；The drying unit is used to dry the concentrate generated after the multi-effect evaporator evaporation, and the back-end ductwork of the boiler is connect with the drying unit, to provide heat source for the drying unit.The present invention also provides a kind of energy saving molasses alcohol liquid treating systems and processing method using above-mentioned evaporation concentration equipment.Molasses alcohol liquid treating system, processing method and its evaporation concentration equipment of the invention can reduce the cost of molasses alcohol waste liquid processing.
Description
[technical field]
The present invention relates to Slops treatment technical fields, and in particular to a kind of energy conservation molasses alcohol liquid treating system,
Method and its evaporation concentration equipment.
[background technique]
With the development of China's Sugarcane Industry, the production of molasses-spirit is accelerated, and molasses-spirit discharges in process of production
A large amount of waste liquid out is equivalent to 10-15 times of alcohol output.The characteristics of this waste liquid is high organic content, COD concentration
Height such as discharges without handling or handling not up to standard, very big harm can be generated to environment.For example, the rum of a 20t/d
Smart factory need to discharge the waste liquid of 300M3/d, and for former waste liquid COD at concentrations up to 80000-150000mg/L, the total emission volumn of COD is suitable
In the discharge amount of a small and medium cities sanitary sewage, therefore molasses alcohol waste liquid must be handled effectively before discharging.
Currently, the processing mode of molasses alcohol waste liquid is more generally using organic fertilizer processed after evaporation and concentration (drying).In this method,
Since evaporation and drying stage are both needed to by boiler dedicated supply hot gas, it is dense as evaporating that a large amount of primary steam need to be consumed
Contracting heat source increases the cost of liquid waste processing.
[summary of the invention]
In view of the above problems, it is necessary to provide at a kind of molasses alcohol waste liquid that can reduce treatment cost of waste liquor
Reason system, processing method and its evaporation concentration equipment.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of evaporation concentration equipment for molasses alcohol waste liquid processing, including sequentially connected boiler, multi-effect evaporator
And drying unit, the boiler provide steam for the multi-effect evaporator, to the molasses-spirit for entering the multi-effect evaporator
Waste liquid is evaporated concentration；The drying unit is used to dry the concentrate generated after the multi-effect evaporator evaporation, the pot
The back-end ductwork of furnace is connect with the drying unit, to provide heat source for the drying unit.
A kind of energy conservation molasses alcohol liquid treating system, including evaporation concentration equipment and anaerobic-aerobic equipment, the evaporation
Concentrator includes sequentially connected boiler, multi-effect evaporator and drying unit, and the boiler provides for the multi-effect evaporator
Steam, to be evaporated concentration to the molasses alcohol waste liquid for entering the multi-effect evaporator；The multi-effect evaporator is detested with described
The aerobic equipment connection of oxygen, is passed through the anaerobic-aerobic equipment for the evaporation condensate that the multi-effect evaporator evaporates and detests
Oxygen Aerobic Process for Treatment；The drying unit is used to dry the concentrate generated after the multi-effect evaporator evaporation, the tail of the boiler
Portion's flue is connect with the drying unit, to provide heat source for the drying unit.
Further, the anaerobic-aerobic equipment includes:
Tank is adjusted, is connect with the multi-effect evaporator, it is solidifying for storing the evaporation that the multi-effect evaporator evaporates
Water；
Anaerobic jar is connect with the adjusting tank, and anaerobic bacteria is equipped in the anaerobic jar, to the steaming in the adjusting tank
Hair condensate carries out Anaerobic Treatment and generates biogas；
Aerobic tank is connect with the anaerobic jar, carries out Aerobic Process for Treatment with the water outlet to the anaerobic jar；
Aerobic tank is connect with the anaerobic jar, carries out Aerobic Process for Treatment with the water outlet to the aerobic tank；
Flow tank is connect with the aerobic tank, is settled with the water outlet to the aerobic tank；
Air buoyancy tank is connect with the flow tank, carries out impurity separation, the air buoyancy tank with the water outlet to the flow tank
Water outlet be discharged by an outer comb.
Further, the anaerobic-aerobic equipment includes the sequentially connected two aerobic tanks, one of them is described good
Oxygen tank is connect with the anaerobic jar, another described aerobic tank is connect with the aerobic tank.
Further, it is additionally provided with circulating line outside the anaerobic jar, the circulating line includes first end interconnected
And second end, the first end is connect with the anaerobic jar and the bottom of the neighbouring anaerobic jar, the second end are detested with described
Oxygen tank connects and is located at the top of the first end, is equipped with circulating pump on the circulating line, will be in the anaerobic jar
In substance withdrawal to the circulating line.
Further, the molasses alcohol liquid treating system further includes return pipe, COD detection device and controller, institute
It states return pipe and is connected to the outer comb and the anaerobic jar, the return pipe is equipped with control valve；The COD detection device and institute
State the connection of outer comb, the junction of the COD detection device and the outer comb be located at the air buoyancy tank and the return pipe and
Between the junction of the outer comb；Regulating valve is additionally provided on the outer comb, it is separate that the regulating valve is located at the return pipe
The side of the air buoyancy tank；The controller is electrically connected with the COD detection device, the control valve and the regulating valve.
Further, the molasses alcohol liquid treating system further includes blower, and the blower is connect with the aerobic tank,
With the air blast into the aerobic tank.
Further, the anaerobic jar is connect by a tracheae with the boiler, the biogas that will be generated in Anaerobic Treatment
It is passed through the boiler.
A kind of processing method of molasses alcohol waste liquid, comprising the following steps:
A kind of molasses alcohol liquid treating system, including evaporation concentration equipment and anaerobic-aerobic equipment, the evaporation are provided
Concentrator includes sequentially connected boiler, multi-effect evaporator and drying unit, the back-end ductwork of the boiler and the drying
Device connection, the multi-effect evaporator are connect with the anaerobic-aerobic equipment；
Molasses alcohol waste liquid is passed through the multi-effect evaporator, the steam generated using the boiler is described more to entering
The molasses alcohol waste liquid of effect evaporator is evaporated concentration, and gained concentrate is passed through the drying unit, what multiple-effect evaporation obtained
Gaseous materials are condensed into liquid phase to obtain evaporation condensate；
Using the tail gas in the back-end ductwork, the concentrate in the drying unit will be located at and carry out drying and processing to obtain
To dry grain；
The evaporation condensate that the multi-effect evaporator evaporates is passed through the anaerobic-aerobic equipment to carry out at anaerobic-aerobic
Reason.
Wherein, anaerobic-aerobic processing the following steps are included:
(1) pH value is adjusted: it is default the pH value of the evaporation condensate to be adjusted to that caustic soda is added into the evaporation condensate
Range；
(2) anaerobic fermentation: to step (1) treated evaporation condensate carry out Anaerobic Treatment；
(3) aerobic treatment Aerobic Process for Treatment: is carried out to the water outlet after Anaerobic Treatment in step (2)；
(4) settlement treatment settlement treatment: is carried out to the water outlet after aerobic biochemical in step (3)；
(5) impurity separation impurity separating treatment: is carried out to the water outlet after settlement treatment using air buoyancy tank.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1, energy saving molasses alcohol liquid treating system of the invention, method and its evaporation concentration equipment, drying unit are straight
It connects and carries out heating, drying using the tail gas of boiler, drying unit does not have to be further added by dedicated boiler heat supplying, reduces evaporation and concentration
Heat source is consumed, the energy has been saved, has reduced treatment cost of waste liquor.
2, anaerobic-aerobic processing is carried out to the evaporation condensate that the multi-effect evaporator evaporates by anaerobic-aerobic equipment,
Discharge standard is reached, environment is avoided pollution.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of the energy saving molasses alcohol liquid treating system of a better embodiment of the invention.
Fig. 2 is the structural schematic diagram of the anaerobic-aerobic equipment of energy conservation molasses alcohol liquid treating system shown in Fig. 1.
In attached drawing, 100- energy conservation molasses alcohol liquid treating system, 2- evaporation concentration equipment, 22- boiler, 24- multiple-effect are steamed
Send out device, 26- drying unit, 4- anaerobic-aerobic equipment, 41- adjust tank, 42- anaerobic jar, 422- circulating line, 423- first end,
425- second end, 426- circulating pump, 427- tracheae, the aerobic tank of 43-, 44- aerobic tank, 45- flow tank, 46- air buoyancy tank, outside 47-
Comb, 48- blower, 6- return pipe, 8-COD detection device, 9- controller, 10- regulating valve, 12- control valve.
[specific embodiment]
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to Figure 1, embodiment of the present invention provides a kind of energy saving molasses alcohol liquid treating system 100, including evaporation
Concentrator 2 and anaerobic-aerobic equipment 4.
Evaporation concentration equipment 2 includes sequentially connected boiler 22, multi-effect evaporator 24 and drying unit 26.Boiler 22 is more
It imitates evaporator 24 and steam is provided, to be evaporated concentration to the molasses alcohol waste liquid for entering multi-effect evaporator 24；Multi-effect evaporator
24 connect with anaerobic-aerobic equipment 4, and the evaporation condensate that the evaporation of multi-effect evaporator 24 obtains is passed through anaerobic-aerobic equipment 4 and is carried out
Anaerobic-aerobic processing；Drying unit 26 is used to dry the concentrate generated after multi-effect evaporator 24 evaporates, the tail portion cigarette of boiler 22
Road is connect with drying unit 26, to provide heat source for drying unit 26.
Please also refer to Fig. 2, in the present embodiment, anaerobic-aerobic equipment 4 includes adjusting tank 41, anaerobic jar 42, aerobic
Tank 43, aerobic tank 44, flow tank 45 and air buoyancy tank 46.It adjusts tank 41 to connect with multi-effect evaporator 24, for storing multiple-effect evaporation
Device 24 evaporates obtained evaporation condensate.Anaerobic jar 42 connect with tank 41 is adjusted, equipped with anaerobic bacteria in anaerobic jar 42, to from adjusting
The evaporation condensate that tank 41 is sent carries out Anaerobic Treatment and generates biogas；Aerobic tank 43 is connect with anaerobic jar 42, to anaerobism
The water outlet of tank 42 carries out Aerobic Process for Treatment；Aerobic tank 44 is connect with anaerobic jar 42, carries out Aerobic Process for Treatment with the water outlet to aerobic tank 43；
Flow tank 45 is connect with aerobic tank 44, is settled with the water outlet to aerobic tank 44；Air buoyancy tank 46 is connect with flow tank 45, with right
The water outlet of flow tank 45 carries out impurity separation, and the water outlet of air buoyancy tank 46 is discharged by an outer comb 47.
Please also refer to Fig. 2, in the present embodiment, circulating line 422 is additionally provided on anaerobic jar 42.Circulating line 422
Outside anaerobic jar 42, including first end interconnected 423 and second end 425.The first end 423 of circulating line 422 with detest
The bottom of the connection of oxygen tank 42 and neighbouring anaerobic jar 42, second end 425 connect and are located at the top of first end 423 with anaerobic jar 42.
In the present embodiment, second end 425 is located at the middle and upper part of anaerobic jar 42.Circulating pump 426 is installed on circulating line 422, is used
In by the substance withdrawal in anaerobic jar 42 to circulating line 422.By circulating pump 426 by the substance in anaerobic jar 42 from bottom
Entered again by the middle and upper part of anaerobic jar 42 after extraction, so that the substance in anaerobic jar 42 generates flowing, so that into
Evaporation condensate in anaerobic jar 42 is sufficiently mixed with the anaerobic bacteria in anaerobic jar 42, improves the efficiency and effect of Anaerobic Treatment.Detest
Oxygen tank 42 is also connect by a tracheae 427 with boiler 22, the biogas generated in Anaerobic Treatment is passed through boiler 22, to reduce pot
22 energy consumption of furnace has saved resource, reduces production cost.
In the present embodiment, anaerobic-aerobic equipment 4 includes sequentially connected two aerobic tanks 43, one of them aerobic tank
43 connect with anaerobic jar 42, another aerobic tank 43 is connect with aerobic tank 44.It is enabled in waste liquid by two-stage aerobic tank 43
Organic matter decomposition it is more thorough.In the present embodiment, anaerobic-aerobic equipment 4 further includes blower 48, blower 48 with it is aerobic
Pond 44 connects, with to 44 air blast of aerobic tank, it is ensured that oxygen is sufficient in Aerobic.
Referring again to Fig. 1, in the present embodiment, energy saving molasses alcohol liquid treating system 100 further includes return pipe
6, COD detection device 8 and controller 9.Return pipe 6 connects outer comb 47 and anaerobic jar 42, and return pipe 6 is equipped with control valve 12；
COD detection device 8 is used to detect the COD concentration of liquid in outer comb 47, connect with outer comb 47, and COD detection device 8 and
The junction of outer comb 47 is between air buoyancy tank 46 and return pipe 6 and the junction of outer comb 47；It is additionally provided on outer comb 47
Regulating valve 10, regulating valve 10 are located at side of the return pipe 6 far from air buoyancy tank 46；Controller 9 and COD detection device 8, control valve 12
And regulating valve 10 is electrically connected.Controller 9 be used for the COD concentration that detects COD detection device 8 and a preset COD concentration into
Row compares, and when the COD concentration that COD detection device 8 detects is higher than the preset COD concentration, controls to adjust valve 10 and close
And control valve 12 is opened, and is handled again at this point, the water outlet of air buoyancy tank 46 is entered in anaerobic jar 42 by return pipe 6；When COD is examined
When surveying the COD concentration of the detection of device 8 not higher than the preset COD concentration, controls to adjust the unlatching of valve 10 and control valve 12 is closed,
At this point, the water outlet of air buoyancy tank 46 passes through outer 47 outlet of comb.
The present invention also provides a kind of processing methods of molasses alcohol waste liquid, comprising the following steps:
S12: above-mentioned energy saving molasses alcohol liquid treating system 100 is provided.
S13: being concentrated by evaporation, molasses alcohol waste liquid be passed through the multi-effect evaporator 24, is generated using the boiler 22
Steam is evaporated concentration to the molasses alcohol waste liquid for entering the multi-effect evaporator 24, and gained concentrate is passed through the drying
Device 26, the Gaseous materials that multiple-effect evaporation obtains are condensed into liquid phase to obtain evaporation condensate.
S15: using the tail gas in the back-end ductwork, the concentrate being located in the drying unit 26 is carried out at drying
Reason is to obtain dry grain.
S16: the evaporation condensate that the multi-effect evaporator 24 evaporation obtains is passed through the anaerobic-aerobic equipment 4 and carries out anaerobism
Aerobic Process for Treatment, specifically includes the following steps:
S162:pH value is adjusted, and the evaporation condensate is placed in and is adjusted in tank 41, and adds caustic soda to adjusting in tank 41
(NaOH) adjusting pH value is 4.3-4.7.The pH that waste water is adjusted by caustic soda, provides suitable for subsequent anaerobic-aerobic reaction treatment
PH range.
S164: anaerobic fermentation, by step S162, treated that evaporation condensate investment has connected the anaerobic jars 42 of anaerobic species
Middle carry out Anaerobic Treatment, makes organic matter anaerobic digestion, and generate biogas, and the biogas which generates can be passed to by tracheae 427
In boiler 22, to provide the energy for boiler 22.The temperature of Anaerobic Treatment is 40-45 DEG C, and the time of Anaerobic Treatment is that 180-220 is small
When.
S166: Aerobic Process for Treatment carries out aerobic treatment to the water outlet after Anaerobic Treatment in step S164, specifically: it will
Water outlet after Anaerobic Treatment, which is successively passed through in two aerobic tanks 43 and aerobic tank 44, carries out Aerobic Process for Treatment, two aerobic tanks 43 and good
The temperature of the aerobic treatment in oxygen pond 44 is 26-32 DEG C, and the time of Aerobic Process for Treatment is 12-17 hours.At aerobic tank 44
It needs during reason through 48 air blast of blower.
S168: settlement treatment carries out settlement treatment to the water outlet after aerobic biochemical in step S166；
S169: impurity separating treatment carries out impurity separation to the water outlet of the flow tank 45 using air buoyancy tank 46.At air bearing
The principle of reason is exactly air to be passed through into waste liquid, and be precipitated from water as carrier in the form of micro-bubble, is made micro- in waste liquid
The polluters such as small suspended particulate are adhered on bubble, are floated to the water surface with bubble, are formed one gas and water of foam, particle three
Body is mixed, achievees the purpose that separate impurity, purifying waste by collecting foam or dross, is mainly used to handle in alcohol effluent
It is difficult to remove relative density close to 1 micro fiber particle and impurity by natural subsidence or floating.
S17: detecting the COD content in the water outlet of air buoyancy tank 46 using COD detection device 8, will be described by controller 9
The COD concentration and a preset COD concentration that COD detection device 8 detects, such as 100mg/L are compared, if the COD is detected
When the COD concentration that device 8 detects is higher than the preset COD concentration, by the effluent recycling of the air buoyancy tank 46 to the anaerobism
In tank 42；If the COD concentration that the COD detection device 8 detects is not higher than the preset COD concentration, by the air buoyancy tank
46 water outlet outlet.
It is illustrated for the processing method further to above-mentioned molasses alcohol waste liquid, it below will be with specific embodiment and comparison
Example explanation.
Embodiment 1
Molasses alcohol waste liquid is passed through the evaporation concentration equipment 2 and is evaporated concentration；It will be obtained after evaporation and concentration
Evaporation condensate be passed through adjust tank 41 in, and to adjust tank 41 in add caustic soda adjust pH value be 4.3.Condensate will be evaporated from adjusting
Tank 41, which is passed through in the anaerobic jar 42 for connected anaerobic species, carries out Anaerobic Treatment, and the temperature of Anaerobic Treatment is 45 DEG C, Anaerobic Treatment
Time be 220 hours；Water outlet after Anaerobic Treatment is successively passed through in two aerobic tanks 43 and aerobic tank 44 and carries out aerobic place
The temperature of the aerobic treatment of reason, two aerobic tanks 43 and aerobic tank 44 is 32 DEG C, and the time of Aerobic Process for Treatment is 17 small
When.It is needed in 44 treatment process of aerobic tank through 48 air blast of blower.Settlement treatment is carried out to the water outlet after aerobic biochemical；Utilize air bearing
Case 46 carries out impurity separation to the water outlet of the flow tank 45.It is detected in the water outlet of air buoyancy tank 46 using COD detection device 8
COD content, the COD concentration for being detected the COD detection device 8 by controller 9 and a preset COD concentration (100mg/L)
It is compared, if the COD concentration of the COD detection device 8 detection is higher than 100mg/L, the water outlet of the air buoyancy tank 46 is returned
It flow in the anaerobic jar 42；If the COD concentration that the COD detection device 8 detects is not higher than 100mg/L, by the air bearing
The water outlet outlet of case 46.
Embodiment 2
Molasses alcohol waste liquid is passed through the evaporation concentration equipment 2 and is evaporated concentration；It will be obtained after evaporation and concentration
Evaporation condensate be passed through adjust tank 41 in, and to adjust tank 41 in add caustic soda adjust pH value be 4.5.Condensate will be evaporated from adjusting
Tank 41, which is passed through in the anaerobic jar 42 for connected anaerobic species, carries out Anaerobic Treatment, and the temperature of Anaerobic Treatment is 40 DEG C, Anaerobic Treatment
Time be 180 hours；Water outlet after Anaerobic Treatment is successively passed through in two aerobic tanks 43 and aerobic tank 44 and carries out aerobic place
The temperature of the aerobic treatment of reason, two aerobic tanks 43 and aerobic tank 44 is 26 DEG C, and the time of Aerobic Process for Treatment is 12 small
When.It is needed in 44 treatment process of aerobic tank through 48 air blast of blower.Settlement treatment is carried out to the water outlet after aerobic biochemical；Utilize air bearing
Case 46 carries out impurity separation to the water outlet of the flow tank 45.It is detected in the water outlet of air buoyancy tank 46 using COD detection device 8
COD content, the COD concentration for being detected the COD detection device 8 by controller 9 and a preset COD concentration (100mg/L)
It is compared, if the COD concentration of the COD detection device 8 detection is higher than 100mg/L, the water outlet of the air buoyancy tank 46 is returned
It flow in the anaerobic jar 42；If the COD concentration that the COD detection device 8 detects is not higher than 100mg/L, by the air bearing
The water outlet outlet of case 46.
Embodiment 3
Molasses alcohol waste liquid is passed through the evaporation concentration equipment 2 and is evaporated concentration；It will be obtained after evaporation and concentration
Evaporation condensate be passed through adjust tank 41 in, and to adjust tank 41 in add caustic soda adjust pH value be 4.7.Condensate will be evaporated from adjusting
Tank 41, which is passed through in the anaerobic jar 42 for connected anaerobic species, carries out Anaerobic Treatment, and the temperature of Anaerobic Treatment is 42 DEG C, Anaerobic Treatment
Time be 200 hours；Water outlet after Anaerobic Treatment is successively passed through in two aerobic tanks 43 and aerobic tank 44 and carries out aerobic place
The temperature of the aerobic treatment of reason, two aerobic tanks 43 and aerobic tank 44 is 30 DEG C, and the time of Aerobic Process for Treatment is 15 small
When.It is needed in 44 treatment process of aerobic tank through 48 air blast of blower.Settlement treatment is carried out to the water outlet after aerobic biochemical；Utilize air bearing
Case 46 carries out impurity separation to the water outlet of the flow tank 45.It is detected in the water outlet of air buoyancy tank 46 using COD detection device 8
COD content, the COD concentration for being detected the COD detection device 8 by controller 9 and a preset COD concentration (100mg/L)
It is compared, if the COD concentration of the COD detection device 8 detection is higher than 100mg/L, the water outlet of the air buoyancy tank 46 is returned
It flow in the anaerobic jar 42；If the COD concentration that the COD detection device 8 detects is not higher than 100mg/L, by the air bearing
The water outlet outlet of case 46.
Following table is the parameters comparison of molasses alcohol waste liquid before and after the processing:
As seen from the above table, molasses alcohol waste liquid passes through the processing method of above-mentioned molasses alcohol waste liquid, and COD concentration is by original
Ten thousand mg/L of 8-15 be reduced to 100mg/L hereinafter, reaching discharge standard, avoid environmental pollution.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (4)
1. a kind of energy conservation molasses alcohol liquid treating system, including evaporation concentration equipment and anaerobic-aerobic equipment, it is characterised in that:
The evaporation concentration equipment includes sequentially connected boiler, multi-effect evaporator and drying unit, and the boiler is multiple-effect steaming
It sends out device and steam is provided, to be evaporated concentration to the molasses alcohol waste liquid for entering the multi-effect evaporator；The multi-effect evaporator
It is connect with the anaerobic-aerobic equipment, the evaporation condensate that the multi-effect evaporator evaporates is passed through the anaerobic-aerobic and is set
It is standby to carry out anaerobic-aerobic processing；The drying unit is used to dry the concentrate generated after the multi-effect evaporator evaporation, described
The back-end ductwork of boiler is connect with the drying unit, to provide heat source for the drying unit；The anaerobic-aerobic equipment packet
It includes and adjusts tank, anaerobic jar, aerobic tank, aerobic tank, flow tank and air buoyancy tank；The adjusting tank is connect with the multi-effect evaporator,
The evaporation condensate evaporated for storing the multi-effect evaporator；The anaerobic jar is connect with the adjusting tank, the anaerobism
Anaerobic bacteria is equipped in tank, to carry out Anaerobic Treatment to the evaporation condensate in the adjusting tank and generate biogas；The aerobic tank with
The anaerobic jar connection, carries out Aerobic Process for Treatment with the water outlet to the anaerobic jar；The aerobic tank is connect with the aerobic tank, with
Aerobic Process for Treatment is carried out to the water outlet of the aerobic tank；The flow tank is connect with the aerobic tank, to go out to the aerobic tank
Water is settled；The air buoyancy tank is connect with the flow tank, carries out impurity separation, the gas with the water outlet to the flow tank
The water outlet of buoyancy tank passes through an outer comb discharge；Circulating line is additionally provided with outside the anaerobic jar, the circulating line includes mutually interconnecting
The first end and second end connect, the first end is connect with the anaerobic jar and the bottom of the neighbouring anaerobic jar, and described second
End connect with the anaerobic jar and is located at the top of the first end, is equipped with circulating pump on the circulating line, will be described
In substance withdrawal to the circulating line in anaerobic jar；The anaerobic jar is connect by a tracheae with the boiler, will be detested
The biogas generated in oxygen processing is passed through the boiler.
2. energy conservation molasses alcohol liquid treating system as described in claim 1, it is characterised in that: the anaerobic-aerobic equipment packet
The sequentially connected two aerobic tanks are included, one of them described aerobic tank is connect with the anaerobic jar, another is described aerobic
Tank is connect with the aerobic tank.
3. energy conservation molasses alcohol liquid treating system as described in claim 1, it is characterised in that: at the molasses alcohol waste liquid
Reason system further includes return pipe, COD detection device and controller, and the return pipe is connected to the outer comb and the anaerobic jar,
The return pipe is equipped with control valve；The COD detection device is connect with the outer comb, the COD detection device with it is described
The junction of outer comb is between the air buoyancy tank and the return pipe and the junction of the outer comb；On the outer comb
It is additionally provided with regulating valve, the regulating valve is located at side of the return pipe far from the air buoyancy tank；The controller and the COD
Detection device, the control valve and the regulating valve are electrically connected.
4. energy conservation molasses alcohol liquid treating system as described in claim 1, it is characterised in that: at the molasses alcohol waste liquid
Reason system further includes blower, and the blower is connect with the aerobic tank, with the air blast into the aerobic tank.
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| CN201610858760.5A CN106315718B (en) | 2016-09-27 | 2016-09-27 | A kind of energy conservation molasses alcohol liquid treating system, method and its evaporation concentration equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157890A (en) * | 2007-08-14 | 2008-04-09 | 天津大学 | Fuel ethanol production equipment and method |
| CN102010104A (en) * | 2010-11-30 | 2011-04-13 | 广济药业（孟州）有限公司 | Method for treating riboflavin fermentation waste water |
| CN103771649A (en) * | 2012-10-23 | 2014-05-07 | 中国石油化工股份有限公司 | Treatment method of 1,3-propanediol production wastewater |
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2016
- 2016-09-27 CN CN201610858760.5A patent/CN106315718B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157890A (en) * | 2007-08-14 | 2008-04-09 | 天津大学 | Fuel ethanol production equipment and method |
| CN102010104A (en) * | 2010-11-30 | 2011-04-13 | 广济药业（孟州）有限公司 | Method for treating riboflavin fermentation waste water |
| CN103771649A (en) * | 2012-10-23 | 2014-05-07 | 中国石油化工股份有限公司 | Treatment method of 1,3-propanediol production wastewater |
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