CN109231747A - Biochemical solid waste stage efficient anaerobic acidation treatment method and device - Google Patents
Biochemical solid waste stage efficient anaerobic acidation treatment method and device Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000020477 pH reduction Effects 0.000 claims abstract description 191
- 238000006243 chemical reaction Methods 0.000 claims abstract description 120
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 30
- 239000010802 sludge Substances 0.000 claims abstract description 21
- 238000010828 elution Methods 0.000 claims abstract description 14
- 238000010411 cooking Methods 0.000 claims abstract description 5
- 230000018044 dehydration Effects 0.000 claims abstract description 3
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 claims abstract description 3
- 238000007781 pre-processing Methods 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
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- 239000004744 fabric Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 21
- 230000007062 hydrolysis Effects 0.000 claims description 16
- 238000006460 hydrolysis reaction Methods 0.000 claims description 16
- 239000002699 waste material Substances 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 8
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- 239000002351 wastewater Substances 0.000 claims description 5
- 239000010828 animal waste Substances 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims description 3
- -1 house refuse Substances 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
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- 230000009469 supplementation Effects 0.000 claims description 2
- 230000032696 parturition Effects 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 12
- 150000002500 ions Chemical class 0.000 abstract description 12
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention proposes that a kind of biochemical solid waste stage efficient anaerobic acidation treatment method of biochemical solid waste comprises the steps of: S1: pre-processing to biochemical solid waste, city sewage plant sludge, house refuse and rubbish from cooking etc.；S2: biochemical solid waste is put into progress anaerobic acidification reaction in anaerobic reactor；S3: drainage, elution, dehydration, quenched is carried out to the biochemical solid waste after interim incomplete anaerobic reaction.The biochemical biochemical solid waste stage efficient anaerobic acidation treatment method of solid waste is acidified solid waste for a long time, fully promotes the heavy metal ion in solid waste to participate in acidification reaction, can efficiently remove harmful heavy metal ions.The present invention also proposes a kind of biochemical solid waste stage efficient anaerobic acidification treater.
Description
Technical field
The present invention relates to environmental technology fields, and in particular to a kind of biochemical solid waste stage efficient anaerobic acidification side
Method and device.
Background technique
With the rapid raising of the fast development of Chinese society, the quickening of urbanization process and living standards of the people, city
City's production is also consequently increased rapidly with the garbage waste material generated in life process, and garbage waste material land occupation pollutes environment,
Influence to health of people is also very huge.
Mainly there are following three kinds for the processing mode of garbage waste material at present: landfill, burning and compost.These three processing
Method cuts both ways.
1. landfill: landfill is to transport garbage waste material to mountain valley or low lying areas, the method covered using soil.Landfill
The advantages of method be it is easy to operate, can handle the rubbish of all kinds.But there are problems that taking up a large area, meanwhile, it fills out
The rubbish buried does not carry out harmless treatment, remains a large amount of bacterium, virus and pollution sources etc., the biogas that also lies dormant, a huge sum of money
Belong to the hidden danger such as pollution, garbage leaching liquid can also permanent ground contamination soil and groundwater, so this processing method is hidden in the hiding greatly
Harm, infinite future trouble can be brought to descendants.
2. burning: burning disposal is the trash processing way that the combustible in rubbish burns in incinerator.Rubbish
The heat generated in rubbish burning process can be used.But waste incineration can generate a large amount of harmful smoke and Toxic
Matter dioxin, flue gas and dioxin can pollute air, soil and water body, and then pollute animal, plant and aquatic organism, people and pass through sky
Gas, drinking-water, food and it is aggrieved.
3. compost: compost treatment is the Biochemical processes using the ingredient in microorganism decomposition garbage waste material.By life
The mode of object fermentation, compost treatment are divided into aerobic compost and anaerobic composting, and aerobic compost is also known as During High-Temperature Composting, refer in ventilation item
Pass through the bioremediation of the metabolic activity degradation product of aerobic microbiological under conditions of part is good, oxygen is sufficient.Anaerobic composting
Feature is that composting temperature is low, and technique is simpler, and nitrogen retains relatively more in finished product compost, but composting excessive cycle, needs 3~12
A month.For the composting temperature general control of aerobic compost at 55 DEG C~60 DEG C, the composting period is shorter, and about 20 days or so, be current heap
The mainstream technology of fertile processing mode, even if aerobic compost greatly shortens composting cycle, but the life rubbish for generating daily
For rubbish total amount, composting cycle is still very long, and takes up a large area, and can not rapidly process rubbish.
The mode of these processing garbage waste materials all cannot well carry out the heavy metal ion contained in rubbish effective
Processing.
Summary of the invention
To solve the shortcomings of the prior art, the present invention is directed to propose a kind of biochemical solid waste stage efficient anaerobic acid
Change processing method and processing device, anaerobic reaction can be controlled in acidification stage, and efficiently remove harmful heavy metal ions.
To achieve the above object, biochemical solid waste stage efficient anaerobic acidation treatment method of the invention includes following step
It is rapid:
S1: to biochemical solid waste, city sewage plant sludge, house refuse, rubbish from cooking, animal feeding rubbish
Rubbish and animal wastes etc. are pre-processed；
S2: biochemical solid waste is put into progress anaerobic acidification reaction in anaerobic reactor；
S3: drainage, elution, dehydration, quenched is carried out to the biochemical solid waste after interim incomplete anaerobic reaction.
Further, pretreatment includes de-oiling, levigate, sorting, flotation processing.
Further, anaerobic acidification reaction includes hydrolysis stage and complete acidification stage.
Further, biochemical solid waste stage efficient anaerobic acidation treatment method is interim using multiple biochemical solid wastes
Efficient anaerobic acidification treater, the anaerobic acidification reaction in each biochemical solid waste stage efficient anaerobic acidification treater
Process is different.
Further, after the charging of biochemical solid waste stage efficient anaerobic acidification treater, to biochemical solid waste rank
A certain amount of biochemical solid waste anaerobic of injection reacts just liquid in section property efficient anaerobic acidification treater, at the beginning of anaerobic reaction
Liquid refers to the reaction solution of hydrolysis stage after the reaction was completed.
Further, in liquid at the beginning of biochemical solid waste stage efficient anaerobic acidification treater charging and into anaerobic reaction
Afterwards, the first liquid of continuous supplementation anaerobic reaction, the air in biochemical solid waste stage efficient anaerobic acidification treater is drained, so
After open draining valve so that the water level decreasing in biochemical solid waste stage efficient anaerobic acidification treater and constant one
Fixed anaerobic reaction is just on liquid water level.
Further, hydrolysis is completed in anaerobic acidification reaction in biochemical solid waste stage efficient anaerobic acidification treater
Stage simultaneously extracts a certain amount of anaerobic reaction out just after liquid, supplement acidification reaction solution, when biochemical solid waste stage efficient anaerobic acid
Anaerobic acidification is reacted into complete acidification stage after changing the anaerobic reaction water level that the water level in processing unit reaches certain.
Further, during biochemical solid waste anaerobic acidification reaction, reach peak in complete acidification stage
It extracts a certain amount of anaerobic acidification reaction solution after value out, it is interim efficiently to inject next biochemical solid waste that hydrolysis stage is completed
In anaerobic acidification processing unit.
Further, biochemical to what is reacted after the complete acidification stage of biochemical solid waste reaches peak value
Medicament I is added in solid waste stage efficient anaerobic acidification treater and stirs evenly, so that biochemical solid waste is interim efficiently
The pH value of biochemical solid waste mixed liquor in anaerobic acidification processing unit reaches 3~4, and state maintenance is no less than
2h。
Further, the main component of medicament I is that the biochemical solid waste of complete acidification stage is completed interim efficiently to detest
The export gas on oxygen acidification treater top and other a small amount of acid additives.
Further, it after the complete acidification stage for carrying out 2h or more, extracts a part of anaerobic acidification reaction solution out, is used for it
The biochemical solid waste stage efficient anaerobic acidification treater of hydrolysis stage is completed in he, and it is anti-to need to continue to complete subsequent anaerobism
In the case where answering, then it is added in the biochemical solid waste into biochemical solid waste stage efficient anaerobic acidification treater
Medicament II simultaneously supplements water and washing water, so that the biochemical solid in biochemical solid waste stage efficient anaerobic acidification treater
Waste pH value reaches 6~7.
Further, the main component of medicament II is alkalescent substance and complex agent.
Further, during entire anaerobic acidification reacts, at biochemical solid waste stage efficient anaerobic acidification
The biochemical solid waste managed in device carries out slow mechanical stirring, and continuously discharge anaerobic acidification reacts the useless of generation
Gas.
Further, during the efficient waste anaerobic acidification processing reaction of all stage property, to biochemical solid waste
Interim efficient anaerobic acidification treater carries out heat preservation and constant temperature, fills biochemical solid waste stage efficient anaerobic acidification
Biochemical solid waste temperature in setting is in 10 DEG C~40 DEG C.
Further, in step s3, biochemical solid waste by drainage and elution generate waste water a part into
Enter next biochemical solid waste stage efficient anaerobic acidification treater to reuse, remaining waste water enter water treatment unit into
Row processing, and discharged after harmless treatment.
The present invention also proposes a kind of biochemical solid waste stage efficient anaerobic acidification treater, it detests including at least three
Oxygen acidification reaction tank, the structure of three anaerobic acidification reactor tanks is identical, the anaerobic acidification reaction in three anaerobic acidification reactor tanks
Process is different, and the mutual siphunculus of intercommunication air inlet pipe, reaction solution is connected between three anaerobic acidification reactor tanks and elutes quenched pipe, is also wrapped
Water treatment facilities is included, the mutual siphunculus of reaction solution and the quenched pipe of elution are connected on water treatment facilities.
Further, anaerobic acidification reactor tank includes tank body, and tank base is equipped with the quenched area of solid waste, is located in the middle part of tank body solid
It gives up and is equipped with fixed-end forces area above quenched area, geotechnological filter cloth is equipped in fixed-end forces area, is equipped with and is used at the top of the quenched area of solid waste
Support the support rack of geotechnological filter cloth.
Further, the top of tank body is equipped with for geotechnological filter cloth to be promoted to the promotion row for carrying out biochemical solid waste
Geotechnological filter cloth hoisting control device out.
Further, balance liquid pipe is connected between the quenched area of solid waste and fixed-end forces area.
Further, the top of tank body is equipped with admission line and exhaust pipe, and admission line is equipped with intake valve, exhaust pipe
Road is equipped with exhaust valve.
Further, top of the tank is equipped with forward feeding input duct, and forward feeding input duct is equipped with forward feeding
Liquid feed valve.
Further, the quenched area bottom of solid waste is equipped with spoil disposal pipeline, is connected with sludge pump on spoil disposal pipeline, sludge pump and solid
The spoil disposal pipeline to give up between quenched area is equipped with mud valve, and sludge pump is connect with the drain discharge pipe outside tank body, and drain discharges
Pipeline is equipped with drain outlet valve.
Further, it is equipped with back flush pipeline in the quenched area of solid waste, is connected with reversed water inlet pipe on back flush pipeline
Road and reversed admission line, back flush pipeline are equipped with back flush valve, and reversed water inlet line is equipped with intake valve of turning one's coat, instead
Reversed intake valve is equipped with to admission line.
Further, bidirectional rotational flow agitating device is equipped in fixed-end forces area, tank body is equipped with for stirring to bidirectional rotational flow
The eddy flow water pipe of device water supply is mixed, eddy flow water pipe is equipped with eddy flow conduit control valve, and eddy flow water pipe is connected to sludge pump and drain
On drain discharge pipe between outlet valve, control valve, solid waste are connected between eddy flow conduit control valve and drain discharge pipe
Quenched area bottom is equipped with gas injecting pipe, and gas injecting pipe is equipped with gas injection valve, and gas injecting pipe is connected to reversed inlet valve and reversed punching
It washes on the reversed water inlet pipe between valve.
Further, water heater is equipped in the quenched area of solid waste.
Anaerobic reaction is controlled by it and is acidified in acidification stage, and for a long time by the present invention, is fully promoted
Heavy metal ion in solid waste participates in acidification reaction, can efficiently remove harmful heavy metal ions.
Detailed description of the invention
With reference to the accompanying drawing the present invention is made further to describe and illustrate.
Fig. 1 is the principle of the biochemical solid waste stage efficient anaerobic acidation treatment method of preferred embodiment of the invention
Figure；
Fig. 2 is the structure of the biochemical solid waste stage efficient anaerobic acidification treater of preferred embodiment of the invention
Figure.
Appended drawing reference: 1, anaerobic acidification reactor tank；11, tank body；111, the quenched area of solid waste；112, fixed-end forces area；12, native
Work filter cloth；13, rack is supported；14, geotechnological filter cloth hoisting control device；15, liquid pipe is balanced；16, admission line；161, air inlet
Valve；17, exhaust pipe；171, exhaust valve；18, forward feeding input duct；181, forward feeding liquid feed valve；19, spoil disposal pipeline；
190, mud valve；191, sludge pump；192, drain discharge pipe；193, drain outlet valve；2, intercommunication air inlet pipe；3, reaction solution is mutual
Siphunculus；4, quenched pipe is eluted；5, water treatment facilities；6, back flush pipeline；61, reversed water inlet line；62, reversed air inlet pipe
Road；63, back flush valve；64, reversed inlet valve；65, reversed intake valve；7, bidirectional rotational flow agitating device；71, eddy flow water pipe；
72, eddy flow conduit control valve；73, control valve；9, water heater.
Specific embodiment
Below in conjunction with attached drawing, pass through the description to the preferred embodiment of the present invention, more clearly and completely elaboration
The technical solution of invention.
Biochemical solid waste stage efficient anaerobic acidation treatment method proposed by the present invention, comprising the following steps:
S1: to biochemical solid waste, urban domestic sewage sludge, house refuse, rubbish from cooking, animal feeding rubbish
It is pre-processed with animal wastes etc.；
S2: biochemical solid waste is put into anaerobic reactor and carries out interim incomplete anaerobic reaction；
S3: drainage, elution, quenched is carried out to the biochemical solid waste after interim incomplete anaerobic reaction；
The bioremediation of interim biochemical solid waste is described below in detail.
House refuse mainly contains inorganic refuse, organic waste, poisonous and harmful rubbish, old metal, waste plastics, glass etc..
In step sl, classify first to house refuse, sub-elect the biochemical solid waste for being able to carry out anaerobic acidification reaction
Object rubbish, it is characterized in that mainly can include rubbish from cooking, domestic sewage sludge via microbial degradation, fermentation, decomposition
Deng hereinafter referred to as " solid waste ".Then, the biochemical solid waste sub-elected is pre-processed.Pretreatment includes to food waste rubbish
De-oiling of rubbish, levigate processing, and the sorting to house refuse, flotation, levigate processing etc., can increase biochemical solid waste in this way
Surface area, be allowed to be more easier to carry out efficient anaerobic acidification.
The present invention carries out the anaerobic acidification of solid waste using multiple biochemical solid waste stage efficient anaerobic acidification treaters
It handles, three biochemical solid waste stage efficient anaerobic acidification treater anabolic reaction systems is used in least situation, often
A biochemical solid waste stage efficient anaerobic acidification treater is in different reaction process.
Liquid at the beginning of charging injects anaerobic reaction into biochemical solid waste stage efficient anaerobic acidification treater after completing, detests
Just liquid is to be acidified in the biochemical solid waste stage efficient anaerobic acidification treater before starting to be discharged after the completion of hydrolyzing for oxygen reaction
Liquid, anaerobic reaction temperature can be taken at 30 DEG C, the reaction solution of 6~8h of anaerobism or so, generally under this status condition
Think that 6~8h has just completed anaerobic hydrolysis process.The purpose of the first liquid of anaerobic reaction is injected first is that using at the beginning of anaerobic reaction in liquid
The a large amount of ectoenzymes contained are accelerated newly into the hydrolytic process of material.Second is that by being acidified to biochemical solid waste stage efficient anaerobic
The mode that processing unit fills it up with the first liquid of anaerobism empties air in biochemical solid waste stage efficient anaerobic acidification treater as early as possible
Advantageous oxygen free condition is created for subsequent anaerobic reaction, after the intracorporal air of drain tank, is then exhausted from the intracorporal liquid of a small amount of tank,
The intracorporal liquid level of tank is set to reach scheduled control water level.Third is that at the beginning of newly the anaerobic reaction of certain temperature will be immersed in into solid material
It can be conducive to subsequent anaerobic reaction in liquid, reaction efficiency can be improved by hydraulic mixing.Four are to speed up entire anaerobic reaction
Process, for anaerobic reaction process raise speed.
Newly pass through 6~8h into solid material, after completing hydrolysis, from biochemical solid waste stage efficient anaerobic acidification place
Managing extraction section anaerobic reaction in device, just liquid enters the biochemical solid waste stage efficient anaerobic acidification that another charging is completed
Anaerobic reaction is participated in processing unit.
It is injected in the biochemical solid waste stage efficient anaerobic acidification treater of liquid at the beginning of to anaerobic reaction has been extracted out another
The part acidic reaction solution extracted out in a biochemical solid waste stage efficient anaerobic acidification treater that acidification reaction is completed,
And reach scheduled control water level.In the biochemical solid waste stage efficient anaerobic acidification treater that hydrolytic process is completed
Inject the purpose of acidification reaction liquid first is that using a large amount of existing zymogenous bacteria population for participating in being acidified in acidification reaction liquid,
Advantageous reaction condition is created for the acidification of subsequent material, accelerates the acidization of material；Second is that the efficiency of anaerobic reaction is improved,
The liquid after being acidified is improved third is that ensure that residence time of the material in acidic liquid condition for the speed-raising of entire anaerobic reaction
Acid concentration, high liquid acidic concentration are conducive to for harmful heavy metal ions most of in material being removed, and are subsequent
Pollutant innoxious use create advantageous condition.
H in the biochemical solid waste stage efficient anaerobic acidification treater of dynamic detection acidification stage2Concentration and liquid
Body pH value.To see whether that acidification also reaches peak value.When having reached acidification peak value, to biochemical solid waste stage efficient anaerobic
It has been reached in another a certain amount of biochemical solid waste stage efficient anaerobic acidification treater of supplement in acidification treater
The reaction gas extracted out to acidification reaction peak value and when reaching the scheduled acidification reaction time, the make-up gas pass through biochemical solid
At Pneumatic mixing device and biochemical solid waste stage efficient anaerobic acidification in useless stage efficient anaerobic acidification treater
Liquid in reason device is sufficiently mixed, and purpose is first is that increase liquid in biochemical solid waste stage efficient anaerobic acidification treater
H in body2Concentration prevents the further progress of anaerobic reaction, extends the acidification reaction time to increase acidizing degree, further
Remove most of heavy metal ion in material；The second is increasing acidification dynamics, increases the concentration of acid, improve heavy metal ion
Removal rate.
After the completion of acidization, it is interim high a part of biochemical solid waste can be emptied or excluded according to subsequent processing needs
The acidification reaction liquid in anaerobic acidification processing unit is imitated, the acidification reaction liquid of discharge partially will enter acidification as another
The replenisher of acidification reaction in the biochemical solid waste stage efficient anaerobic acidification treater of reaction.It is biochemical to supplement another
Solid waste stage efficient anaerobic acidification treater enters the anaerobic reaction extracted out before acidification reaction just liquid.If stopping detesting at this time
Oxygen reaction, then should drain acidification reaction liquid, and elute to material, terminate further anaerobic reaction；It is a part of at this time
Acidification reaction liquid and wastewater eluting enter water treatment system handled, utilization or discharge, a part of acidification reaction liquid enters another
One biochemical solid waste stage efficient anaerobic acidification treater for needing acidification reaction participates in strengthening acidification reaction.If wanted
Continue anaerobic reaction, then part acidic liquid is only pulled out, if needed at this time to biochemical solid waste stage efficient anaerobic
Air supplement anaerobic reaction first liquid in acidification treater and drained, the secondary anaerobism for carrying out material is reacted completely, secondary
Biogas is collected and can be made full use of in the complete reaction process of anaerobism.
Fixed-end forces area uses eddy flow hydraulic mixing, can reach the full and uniform of material and reaction solution and mix and fast
Speed overflows reaction gas, accelerates reaction process, improves treatment effeciency.
Interim efficient anaerobic acidification, which refers to, takes necessary technological means, and anaerobic reaction control is completed in anaerobic acidification
Stage, and the acid concentration of reaction solution is improved, extend the time of acidification reaction, its object is to have using the removal of efficient acidification reaction
Evil heavy metal ion.
Just the purpose of liquid is to accelerate the hydrolysis of solid material reaction initial phase injection anaerobic reaction, improves hydrolysis
Efficiency, the purpose of injection acidification reaction liquid is to speed up the process that material acidification reaches peak value after the completion of hydrolysis, improves acidification reaction
Efficiency increases the concentration of acid, is conducive to the removal of harmful heavy metal ions in material, when acidification reaches peak value, injection acidification
The purpose of reaction export gas is that anaerobic reaction is prevented to continue to develop, and extends the acidificatoin time of anaerobic reaction, is greatly increased anti-
Concentration sour in liquid is answered, so as to efficiently thoroughly remove harmful heavy metal ions.
As shown in Figure 1, the biochemical solid waste stage efficient anaerobic acidification treater packet of present invention first choice embodiment
At least three anaerobic acidification reactor tanks 1 are included, use three anaerobic acidification reactor tanks 1 in the present embodiment, three anaerobic acidifications are anti-
The structure having the same of tank 1 is answered, when carrying out interim efficient anaerobic acidification, detesting in three anaerobic acidification reactor tanks 1
Oxygen acidification reaction process is different, is connected with intercommunication air inlet pipe 2 between three anaerobic acidification reactor tanks 1, has in intercommunication air inlet pipe 2
The intercommunication intake valve 161 to circulate between each anaerobic acidification reactor tank 1 for controlling reaction gas.In addition, three anaerobic acidifications
It is also connected with the mutual siphunculus 3 of reaction solution for exchanging circulation reaction solution between reactor tank 1, sets water position on the mutual siphunculus 3 of reaction solution
Manage device 5.The quenched pipe of elution is connected between three anaerobic acidification reactor tanks 1, eluting quenched pipe 4 can react to anaerobic acidification
Liquid is sprayed in tank 1, solid waste elute quenched, quenched pipe 4 is eluted and is also connected on water treatment facilities 5.
With reference to Fig. 2, anaerobic acidification reactor tank 1 includes tank body 11, and 11 bottom of tank body is equipped with the quenched area 111 of solid waste, i.e. liquid storage
Area fills reaction solution in carrying out anaerobic acidification reaction process in the quenched area 111 of solid waste.The top in the quenched area 111 of solid waste is equipped with
Rack 13 is supported, is equipped with fixed-end forces area 112 in the middle part of tank body 11, is i.e. elution area, fixed-end forces area 112 and the quenched area 111 of solid waste
Between i.e. separated by support rack 13.Balance liquid pipe 15 is equipped on the outside of tank body 11, one end of balance liquid pipe 15 is connected to tank body 11
Higher than the top in fixed-end forces area 112, the other end is connected in the quenched area 111 of solid waste, a large amount of when filling in fixed-end forces area 112
When solid waste, the reaction solution that tank body 11 is located at 112 top of fixed-end forces area is difficult to flow directly into solid waste tune by fixed-end forces area 112
Matter area 111, when upper end of the reaction solution liquid level up to or over balance liquid pipe 15, reaction solution directly passes through balance liquid pipe
15 enter the quenched areas 111 of solid waste, by balance liquid pipe 15 play balance tank body 11 in liquid distribution and control tank body 11 in water level
Effect.Geotechnological filter cloth 12 is equipped in fixed-end forces area 112, geotechnological filter cloth 12 catches solid waste, can be to avoid in the mistake of elution
Cheng Zhong, granular solid waste are fallen into the quenched area 111 of solid waste from solid waste elution area, and support rack 13 can preferably hold geotechnique
Filter cloth 12, plays a supporting role.
With reference to Fig. 2, the top of tank body 11 is equipped with 12 hoisting control device of geotechnological filter cloth for lifting geotechnological filter cloth 12, soil
Geotechnological filter cloth 12 can be lifted up in a manner of rolling up drawing by 12 lifting device of work filter cloth on the one side at 11 top of tank body, thus will
Geotechnological filter cloth 12 is taken away from solid waste bottom, and the solid waste that anaerobic acidification is disposed is fallen into the quenched area 111 of solid waste, thus by tank body
It is taken out from tank body 11 11 bottoms.
With reference to Fig. 2, the top of tank body 11 is equipped with admission line 16 and exhaust pipe 17, the admission line 16 on each tank body 11
It is connected respectively with intercommunication air inlet pipe 2, admission line 16 is equipped with the intake valve 161 for controlling the folding of admission line 16, exhaust
The exhaust valve 171 that control exhaust pipe 17 opens and closes is again provided on pipeline 17,
With reference to Fig. 2, forward feeding input duct 18 is equipped at the top of tank body 11, forward feeding input duct 18 is used for tank body
The charging of solid waste and the feed liquor of acidification reaction liquid are carried out in 11.Forward feeding input duct 18 is equipped with forward feeding feed liquor
Valve 181, for controlling the folding of forward feeding input duct 18.
With reference to Fig. 2,11 bottom of tank body is equipped with back flush pipeline 6, and back flush pipeline 6 is equipped with for controlling reversed punching
Wash the back flush valve 63 of pipeline 6.Reversed water inlet line 61 and reversed admission line 62 are connected on back flush pipeline 6, instead
It is equipped with reversed intake valve 65 to water inlet line 61, reversed admission line 62 is equipped with reversed intake valve 65.
With reference to Fig. 2,11 bottom of tank body is additionally provided with spoil disposal pipeline 19, and sludge pump 191, sludge pump are connected on spoil disposal pipeline 19
Spoil disposal pipeline 19 between 191 and tank body 11 is equipped with mud valve 190.Drain discharge pipe outside sludge pump 191 and tank body 11
192 connections, drain discharge pipe 192 are equipped with drain outlet valve 193.Bidirectional rotational flow stirring dress is equipped in fixed-end forces area 112
7 are set, eddy flow water pipe 71 is connected on bidirectional rotational flow agitating device 7, eddy flow water pipe 71 can be supplied to bidirectional rotational flow agitating device 7
Water.Eddy flow water pipe 71 is equipped with 71 control valve 73 of eddy flow water pipe, and eddy flow water pipe 71 is connected to sludge pump 191 and drain outlet valve
On drain discharge pipe 192 between 193, control valve is equipped between 71 control valve 73 of eddy flow water pipe and drain discharge pipe 192
73。
The quenched area 111 of solid waste be equipped with gas injecting pipe, gas injecting pipe be equipped with gas injection valve, gas injecting pipe be connected to reversely into
On reversed water inlet line 61 between water valve 64 and back flush valve 63.
With reference to Fig. 2, in addition, being additionally provided with water heater 9 in the quenched area 111 of solid waste, water heater 9 can be in tank body 11
Acidification reaction liquid is heated to temperature needed for carrying out anaerobic acidification reaction, when reducing spent by anaerobic acidification reaction spontaneous heating
Between, improve treatment effeciency.
Operating process: during carrying out interim efficient anaerobic acidification, it is first turned on forward feeding liquid feed valve
181, liquid at the beginning of anaerobic reaction is injected into tank body 11 by forward feeding input duct 18, exhaust valve 171 is opened simultaneously, passes through tank
The rising of water level in body 11 gradually empties the air in tank body 11, closes forward feeding liquid feed valve 181 and exhaust after air emptying
Valve 171 opens mud valve 190 and drain outlet valve 193, and a small amount of anaerobic reaction just liquid is discharged, the water level of tank body 11 is kept
Position on control water level, i.e., at balance 15 upper end of liquid pipe.Drain outlet valve 193 is closed, 71 control valve of eddy flow water pipe is opened
73, start sludge pump 191, the anaerobic reaction liquid of quenched 111 bottom of area of solid waste is extracted out by sludge pump 191, by eddy flow water pipe 71
Into bidirectional rotational flow agitating device 7, bidirectional rotational flow stirring is carried out to fixed-end forces area 112.During stirring, in tank body 11
Temperature heated by water heater 9, be rapidly achieved 30 DEG C~40 DEG C of reaction preference temperature, anaerobic acidification is reacted into water
The solution stage.
After the completion of hydrolysis stage, 71 control valve 73 of eddy flow water pipe is closed, opens drain outlet valve 193, it will be in tank body 11
Anaerobic reaction just liquid extraction.It is then shut off drain outlet valve 193 and sludge pump 191, forward feeding liquid feed valve 181 is opened, to tank
Acidification reaction liquid is injected in body 11, closes forward feeding liquid feed valve 181 after the liquid level of acidification reaction liquid reaches control water level,
It opens 71 control valve 73 of eddy flow water pipe and starts sludge pump 191, bidirectional rotational flow stirring constantly is carried out to fixed-end forces area 112.
It is maintained at 30 DEG C~40 DEG C of reaction preference temperature in tank body 11, carries out the acidification stage of 6h~8h.
In acidification stage, when acidification reaction reaches peak, intake valve 161, reversed intake valve 65 and reversed punching are opened
Valve 63 is washed, a certain amount of acidification reaction export gas is injected into tank body 11, continuing for anaerobic reaction is prevented, keeps anaerobism anti-
Longer time should be able to be retained in acidification stage.In the process, intake valve 161 and reversed intake valve 65 are closed in due course, are stopped
Only gas injection makes anaerobic reaction be retained in suitable process.
After the completion of acidification stage, 71 control valve 73 of eddy flow water pipe is closed, opens drain outlet valve 193, by dredge pump by tank
Acidification reaction liquid in body 11 drains, and is then shut off drain outlet valve 193, reversed intake valve 65 and control valve 73 is opened, to tank
Water filling in body 11 washes solid waste material and the geotechnological progress of filter cloth 12 leaching and backwash, the anaerobism for further stopping solid waste material is anti-
It answers, back flush valve 63 and control valve 73 is closed after the completion of elution.Start 12 hoisting control device of geotechnological filter cloth, by geotechnological filter cloth
12 remove and withdraw, and solid waste material is fallen into the quenched area 111 of solid waste, after quenched, open drain outlet valve 193 by sludge pump
191 extract out from tank body 11, to empty tank body 11.
The anaerobic reaction being discharged in the in each stage just a part such as liquid, acidification reaction liquid and ring waste progress reuse, one
Part, which enters after water treatment system is handled, to be reused.
Only preferred embodiments of the present invention will be described for above-mentioned specific embodiment, and not to guarantor of the invention
Shield range is defined.Under the premise of not departing from design concept of the present invention and scope, those skilled in the art
Provided verbal description, attached drawing various modifications to made by technical solution of the present invention, substitution and improvement according to the present invention,
It should belong to protection category of the invention.Protection scope of the present invention is determined by claim.
Claims (25)
1. a kind of biochemical solid waste stage efficient anaerobic acidation treatment method, which comprises the following steps:
S1: to biochemical solid waste, city sewage plant sludge, house refuse, rubbish from cooking, animal feeding rubbish and
Animal wastes etc. are pre-processed；
S2: biochemical solid waste is put into progress anaerobic acidification reaction in anaerobic reactor；
S3: drainage, elution, dehydration, quenched is carried out to the biochemical solid waste after interim incomplete anaerobic reaction.
2. biochemical solid waste stage efficient anaerobic acidation treatment method as described in claim 1, which is characterized in that described pre-
Processing includes de-oiling, levigate, sorting, flotation processing.
3. biochemical solid waste stage efficient anaerobic acidation treatment method as described in claim 1, which is characterized in that described to detest
Oxygen acidification reaction includes hydrolysis stage and complete acidification stage.
4. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 3, which is characterized in that it is described can
Biochemical solid waste stage efficient anaerobic acidation treatment method is using multiple biochemical solid waste stage efficient anaerobic acidification dresses
It sets, the anaerobic acidification reaction process in each biochemical solid waste stage efficient anaerobic acidification treater is different.
5. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 4, which is characterized in that can give birth to
After changing the charging of solid waste stage efficient anaerobic acidification treater, to biochemical solid waste stage efficient anaerobic acidification treater
Interior a certain amount of biochemical solid waste anaerobic of injection reacts just liquid, and just liquid refers to that hydrolysis stage has reacted to the anaerobic reaction
Reaction solution after.
6. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 5, which is characterized in that can give birth to
Change the charging of solid waste stage efficient anaerobic acidification treater and into after liquid at the beginning of anaerobic reaction, the first liquid of continuous supplementation anaerobic reaction,
Air in biochemical solid waste stage efficient anaerobic acidification treater is drained, draining valve is then opened, so that can give birth to
Change the water level decreasing in solid waste stage efficient anaerobic acidification treater and constant at the beginning of certain anaerobic reaction on liquid water level.
7. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 6, which is characterized in that can give birth to
Change anaerobic acidification reaction in solid waste stage efficient anaerobic acidification treater to complete hydrolysis stage and extract a certain amount of anaerobism out
After reacting just liquid, supplement acidification reaction solution, when the water level in biochemical solid waste stage efficient anaerobic acidification treater reaches
Anaerobic acidification is reacted into complete acidification stage after certain anaerobic reaction water level.
8. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 7, which is characterized in that can give birth to
During changing solid waste anaerobic acidification reaction, a certain amount of anaerobic acidification is extracted out after complete acidification stage reaches peak value
Reaction solution injects next be completed in the biochemical solid waste stage efficient anaerobic acidification treater of hydrolysis stage.
9. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 8, which is characterized in that can give birth to
After the change complete acidification stage of solid waste reaches peak value, at the biochemical solid waste stage efficient anaerobic acidification reacted
Medicament I is added in reason device and stirs evenly, so that giving birth in biochemical solid waste stage efficient anaerobic acidification treater
The pH value for changing solid waste mixed liquor reaches 3~4, and the state is maintained to be no less than 2h.
10. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 9, which is characterized in that described
The main component of medicament I is that the biochemical solid waste stage efficient anaerobic acidification treater top of complete acidification stage is completed
Export gas and other a small amount of acid additives.
11. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 10, which is characterized in that into
After the complete acidification stage of row 2h or more, extract a part of anaerobic acidification reaction solution out, for other be completed hydrolysis stage can
Biochemical solid waste stage efficient anaerobic acidification treater, in the case where needing to continue to complete subsequent anaerobic reaction, then to can give birth to
Change and medicament II is added in the biochemical solid waste in solid waste stage efficient anaerobic acidification treater and supplements water and leaching
Wash water so that the biochemical solid waste pH value in biochemical solid waste stage efficient anaerobic acidification treater reach 6~
7。
12. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 11, which is characterized in that described
The main component of medicament II is alkalescent substance and complex agent.
13. the biochemical solid waste stage efficient anaerobic acidation treatment method as described in claim 1~12, which is characterized in that
During the reaction of entire anaerobic acidification, to biochemical solid in biochemical solid waste stage efficient anaerobic acidification treater
Body waste carries out slow mechanical stirring, and the exhaust gas that continuously reaction of discharge anaerobic acidification generates.
14. the biochemical solid waste stage efficient anaerobic acidation treatment method as described in claim 1~12, which is characterized in that
During the efficient waste anaerobic acidification processing reaction of all stage property, biochemical solid waste stage efficient anaerobic is acidified
Processing unit carries out heat preservation and constant temperature, keeps the biochemical solid in biochemical solid waste stage efficient anaerobic acidification treater useless
Gurry temperature is in 10 DEG C~40 DEG C.
15. biochemical solid waste stage efficient anaerobic acidation treatment method as claimed in claim 10, which is characterized in that in step
In rapid S3, biochemical solid waste enters next biochemical solid waste stage by waste water a part that drainage and elution generate
Property efficient anaerobic acidification treater reuse, remaining waste water enters water treatment unit and handled, and in harmless treatment
After discharged.
16. a kind of biochemical solid waste stage efficient anaerobic acidification treater, which is characterized in that including at least three anaerobism acid
Change reactor tank, the structure of three anaerobic acidification reactor tanks is identical, the anaerobic acidification in three anaerobic acidification reactor tanks
Reaction process is different, and the mutual siphunculus of intercommunication air inlet pipe, reaction solution is connected between three anaerobic acidification reactor tanks and elution is adjusted
Matter pipe further includes water treatment facilities, and the mutual siphunculus of reaction solution and the quenched pipe of elution are connected on water treatment facilities.
17. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 16, which is characterized in that described
Anaerobic acidification reactor tank includes tank body, and the tank base is equipped with the quenched area of solid waste, is located at the quenched area of solid waste in the middle part of the tank body
Top is equipped with fixed-end forces area, and geotechnological filter cloth is equipped in the fixed-end forces area, is equipped with and is used at the top of the quenched area of solid waste
Support the support rack of geotechnological filter cloth.
18. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 17, which is characterized in that described
The geotechnological filter cloth that the top of tank body is equipped with for geotechnological filter cloth to be promoted to the promotion discharge for carrying out biochemical solid waste is promoted
Control device.
19. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 17, which is characterized in that described
Balance liquid pipe is connected between the quenched area of solid waste and fixed-end forces area.
20. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 17, which is characterized in that described
The top of tank body is equipped with admission line and exhaust pipe, and the admission line is equipped with intake valve, and the exhaust pipe is equipped with
Exhaust valve.
21. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 20, which is characterized in that described
Top of the tank is equipped with forward feeding input duct, and the forward feeding input duct is equipped with forward feeding liquid feed valve.
22. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 17, which is characterized in that described
The quenched area bottom of solid waste is equipped with spoil disposal pipeline, and sludge pump, the sludge pump and the quenched area of solid waste are connected on the spoil disposal pipeline
Between spoil disposal pipeline be equipped with mud valve, the sludge pump connect with the drain discharge pipe outside tank body, and the drain discharges
Pipeline is equipped with drain outlet valve.
23. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 22, which is characterized in that described
It is equipped with back flush pipeline in the quenched area of solid waste, is connected with reversed water inlet line and reversed air inlet pipe on the back flush pipeline
Road, the back flush pipeline are equipped with back flush valve, and the reversed water inlet line is equipped with reversed inlet valve, described reversed
Admission line is equipped with reversed intake valve.
24. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 23, which is characterized in that described
Bidirectional rotational flow agitating device is equipped in fixed-end forces area, the tank body is equipped with the rotation for supplying water to bidirectional rotational flow agitating device
Overflow pipe, the eddy flow water pipe are equipped with eddy flow conduit control valve, and the eddy flow water pipe is connected to sludge pump and drain outlet valve
Between drain discharge pipe on, control valve is connected between the eddy flow conduit control valve and drain discharge pipe, it is described solid
Quenched area bottom give up equipped with gas injecting pipe, the gas injecting pipe is equipped with gas injection valve, and the gas injecting pipe is connected to reversed water inlet
On reversed water inlet pipe between valve and back flush valve.
25. biochemical solid waste stage efficient anaerobic acidification treater as claimed in claim 17, which is characterized in that described
Water heater is equipped in the quenched area of solid waste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046181.6A CN109231747A (en) | 2018-09-07 | 2018-09-07 | Biochemical solid waste stage efficient anaerobic acidation treatment method and device |
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|---|---|---|---|
| CN201811046181.6A CN109231747A (en) | 2018-09-07 | 2018-09-07 | Biochemical solid waste stage efficient anaerobic acidation treatment method and device |
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| CN109231747A true CN109231747A (en) | 2019-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213191A (en) * | 2022-05-17 | 2022-10-21 | 深圳市盘龙环境技术有限公司 | Hydrolysis acidification sectional fermentation process technology for resourceful treatment of kitchen garbage |
-
2018
- 2018-09-07 CN CN201811046181.6A patent/CN109231747A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213191A (en) * | 2022-05-17 | 2022-10-21 | 深圳市盘龙环境技术有限公司 | Hydrolysis acidification sectional fermentation process technology for resourceful treatment of kitchen garbage |
| CN115213191B (en) * | 2022-05-17 | 2024-04-09 | 深圳市盘龙环境技术有限公司 | Kitchen garbage recycling, hydrolyzing, acidifying and sectional fermentation process treatment technology |
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Application publication date: 20190118 |