CN107399820A - A kind of biogas slurry treatment device - Google Patents

A kind of biogas slurry treatment device Download PDF

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Publication number
CN107399820A
CN107399820A CN201710828355.3A CN201710828355A CN107399820A CN 107399820 A CN107399820 A CN 107399820A CN 201710828355 A CN201710828355 A CN 201710828355A CN 107399820 A CN107399820 A CN 107399820A
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CN
China
Prior art keywords
reactor
biogas slurry
internal
anaerobic
treatment device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710828355.3A
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Chinese (zh)
Inventor
何泳良
何梓锋
谭文泷
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Guangzhou Biogas Environmental Protection Science And Technology Co Ltd
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Guangzhou Biogas Environmental Protection Science And Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Guangzhou Biogas Environmental Protection Science And Technology Co Ltd filed Critical Guangzhou Biogas Environmental Protection Science And Technology Co Ltd
Priority to CN201710828355.3A priority Critical patent/CN107399820A/en
Publication of CN107399820A publication Critical patent/CN107399820A/en
Pending legal-status Critical Current

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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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses a kind of biogas slurry treatment device, for biogas slurry treatment field, including：Internal-circulation anaerobic reactor, there is inlet, methane outlet, liquid outlet and liquid return hole；Aerobic nitrification reactor, inside sets aeration devices, and the liquid outlet of internal-circulation anaerobic reactor leads to the entrance of aerobic nitrification reactor；Anaerobic ammonia oxidation reactor, its inlet communicate with the liquid outlet of aerobic nitrification reactor, and the liquid outlet of anaerobic ammonia oxidation reactor leads to transfer container.The present invention first sequentially enters internal-circulation anaerobic reactor and aerobic nitrator before biogas slurry enters anaerobic ammonia oxidation reactor, inside following anaerobism generator can carry out further removing and increasing the utilization rate of organic matter to the COD in water, to reach requirement of the anaerobic ammonia oxidation process to water quality；In addition, internal-circulation anaerobic reactor and aerobic nitrator constitute A/O process combination, for dephosphorization and continue to remove the organic matter in sewage, electron acceptor is provided for follow-up anaerobic ammonia oxidation process.

Description

A kind of biogas slurry treatment device
Technical field
The present invention relates to biogas slurry treatment field, more particularly to a kind of biogas slurry treatment device.
Background technology
Maximum to environmental hazard in biogas slurry is NH3And the material such as PO, such as unprocessed discharge, these materials can do cyclization The pollution of border water body.Have the technique handled using anaerobic ammonia oxidation process biogas slurry at present, however in biogas slurry COD generally compared with Height, there is certain requirement in anaerobic ammonia oxidation process system to the COD of water quality, and in system ANAMMOX (red bacterium) propagation It is also more sensitive to COD；The less COD considered how in reduction biogas slurry of current anaerobic ammonia oxidation process.
The content of the invention
In order to solve the above problems, the present invention provides a kind of biogas slurry treatment device that can rationally remove COD in biogas slurry.
The technical solution adopted in the present invention is：
A kind of biogas slurry treatment device, including：
Internal-circulation anaerobic reactor, there is inlet, methane outlet, liquid outlet and liquid return hole；
Aerobic nitrification reactor, inside sets aeration devices, and the liquid outlet of internal-circulation anaerobic reactor leads to aerobic nitrification reaction The entrance of device；
Anaerobic ammonia oxidation reactor, its inlet communicate with the liquid outlet of aerobic nitrification reactor, Anammox reaction The liquid outlet of device leads to transfer container.
As a further improvement on the present invention, the aerobic nitrification reactor is provided with mud discharging mouth, aerobic nitrification reactor Mud discharging mouth passes to the sludge reflux mouth of internal-circulation anaerobic reactor by pipeline and the reflux pump being arranged on pipeline.
As a further improvement on the present invention, the internal-circulation anaerobic reactor is provided with mud discharging mouth, internal circulating anaerobic reaction The mud discharging mouth of device passes to the natural pond for adding original biogas slurry after being connected in parallel with the mud discharging mouth of aerobic nitrification reactor by pipeline In liquid pool.
As a further improvement on the present invention, in addition to solid-liquid separator, the solid-liquid separator have biogas residue outlet, led to Exported to the suction inlet in biogas slurry pond with the biogas slurry for leading to filtering pond, the inlet of internal-circulation anaerobic reactor is external to be taken out from filtering pond Rise the feed pump of liquid.
As a further improvement on the present invention, it is provided between the liquid return hole of the transfer container and internal-circulation anaerobic reactor Refluxing unit.
As a further improvement on the present invention, the methane outlet of the internal-circulation anaerobic reactor is connected to generating by pipeline Equipment, the pipeline for connecting generating equipment and methane outlet are provided with back-fire relief water seal.
As a further improvement on the present invention, the anaerobic ammonia oxidation reactor built-in biological bacterium bed.
As a further improvement on the present invention, polyP bacteria is contained in the sludge of aerobic nitrification reactor.
As a further improvement on the present invention, it is back in the sludge of internal-circulation anaerobic reactor and also contains polyP bacteria.
The beneficial effects of the invention are as follows：The present invention first sequentially enters interior circulation before biogas slurry enters anaerobic ammonia oxidation reactor Anaerobic reactor and aerobic nitrator, inside following anaerobism generator can carry out further removing and increasing to the COD in water Add the utilization rate of organic matter, to reach requirement of the anaerobic ammonia oxidation process to water quality；In addition, internal-circulation anaerobic reactor and aerobic Nitrator constitutes A/O process combination, for dephosphorization and continues to remove the organic matter in sewage, is follow-up anaerobism Ammonia oxidation process provides electron acceptor.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the technological principle schematic diagram of the present invention.
Embodiment
Biogas slurry treatment device as shown in Figure 1, including internal-circulation anaerobic reactor 1, aerobic nitrification reactor 2 and anaerobism ammonia Oxidation reactor 3.
Wherein internal-circulation anaerobic reactor 1 is muti-level directory, also referred to as IC anaerobic reactors, its have into Liquid mouth, methane outlet, liquid outlet and liquid return hole, three phase separator is additionally provided with the top of internal-circulation anaerobic reactor 1.Interior circulation Anaerobic reactor 1 is a kind of efficient multistage inner circulation reactor, compared to former traditional anaerobic reactor, it have take up an area less, Organic loading is high, impact resistance is stronger, and performance is more stable, operational administrative is simpler.When processing COD is 10000-15000mg/ During high concentrated organic wastewater during L, traditional general volumetric loading of anaerobic reactor is 5-8kgCOD/m3；IC anaerobic reactors hold Product rate of load condensate is up to 15-30kgCOD/m3。
Aeration devices 21 are set in described aerobic nitrification reactor 2, aeration devices 21 are located at bottom, can be densely covered with it is micro- The aeration tube in hole, aeration tube are connected with the air compressor 22 of outside by pipeline.The top of internal-circulation anaerobic reactor 1 goes out liquid Mouth leads to the entrance of the bottom of aerobic nitrification reactor 2 by way of flow by gravity.
Described anaerobic ammonia oxidation reactor 3, its inlet communicate with the liquid outlet of aerobic nitrification reactor 2, to receive Biogas slurry after aerobic nitrification.The liquid outlet of anaerobic ammonia oxidation reactor 3 leads to transfer container 10.
Above-mentioned internal-circulation anaerobic reactor 1 uses anaeration in normal temperature, biogas slurry after the processing of internal-circulation anaerobic reactor 1, Biogas caused by anaerobic processes is discharged by the three phase separator gas collection area for being located at reactor head through pipeline, as follow-up work Skill；
The dilute biogas slurry treated by depth anaerobic technique, aerobic nitrification reactor 2 is flowed under gravity.Inside follow Ring anaerobic reactor 1 and aerobic nitrator 2 constitute A/O process combination, for dephosphorization and continue to remove sewage In organic matter, provide electron acceptor for follow-up anaerobic ammonia oxidation process；
Biogas slurry after aerobic flows into anaerobic ammonia oxidation reactor 3, using anaerobic ammonia oxidation process to biogas slurry at The advantages of reason, is in the case of without using biogas slurry carbon source to TN and NH3Removed.
In above process, biogas slurry sprays the oxygen in air with aeration tube and fully contacted, and oxygen is in aerobic nitrification device Play a part of as follows：
1), to NH4 +Carry out oxidation generation nitrite NO2 -, electron acceptor is provided for anaerobic ammonia oxidation process；
2), aerobic nitrification reactor 2 forms the solid phosphorus techniques of A/O with internal-circulation anaerobic reactor 1；
3), effect of the oxygen in aerobic nitrification reactor 2 also includes further removing organic matter and the increase in sewage The dissolved oxygen (DO) of sewage.
In addition, the combination of internal-circulation anaerobic reactor 1, anaerobic ammonia oxidation reactor 3 and aerobic nitrification reactor 2 can also It is regarded as with A/O dephosphorization technology.
It is further preferred that above-mentioned aerobic nitrification reactor 2 is provided with the mud discharging mouth positioned at bottom, aerobic nitrification reactor 2 mud discharging mouth passes to the sludge reflux mouth of internal-circulation anaerobic reactor 1 by pipeline and the reflux pump 4 being arranged on pipeline.
It is further preferred that the bottom of internal-circulation anaerobic reactor 1 is also provided with mud discharging mouth, internal-circulation anaerobic reactor 1 The mud discharging mouth of mud discharging mouth and aerobic nitrification reactor 2 passes to the biogas slurry pond for adding original biogas slurry after being connected in parallel by pipeline In 5.It is corresponding, corresponding valve is set on pipeline, and to control spoil disposal, while valve can also control aerobic nitrator 2 Spoil disposal is row into internal-circulation anaerobic reactor 1 or biogas slurry pond 5.
It is further preferred that biogas slurry treatment device also includes solid-liquid separator 6, solid-liquid separator 6 has biogas residue outlet, led to Exported to the suction inlet in biogas slurry pond 5 with the biogas slurry for leading to filtering pond 7.The solid-liquid separator 6 is spiral dewaterer, and the spiral takes off The charging aperture of water dispenser is connected in biogas slurry pond 5 as suction inlet by pipeline, and lifting is set between spiral dewaterer and biogas slurry pond 5 Pump 61, can by thick biogas slurry, from the sludge of the mud discharging mouth of aerobic nitrification reactor 2 discharge, from the mud discharging mouth of internal-circulation anaerobic reactor 1 The sludge of discharge, which inputs, carries out separation of solid and liquid into spiral dewaterer；The discharging opening of spiral dewaterer forms biogas residue outlet, biogas residue Outlet with external pipe and can be led to and drying device (not shown), after separation of solid and liquid, inorganic matter, fixation in thick biogas slurry Carbon and the bulky grain organic matter not being hydrolyzed are trapped, and are sent to organic fertilizer production technique and are handled.
The liquid outlet of spiral dewaterer forms biogas slurry outlet, and biogas slurry outlet is led in filtering pond 7 by pipeline, is fed afterwards Biogas slurry in filtering pond 7 is promoted to the inlet of internal-circulation anaerobic reactor 1 by pump 71.
The lettuce inputted from cleaner liquid to internal-circulation anaerobic reactor 1 sometimes may be higher, and is unfavorable for detesting Oxygen reacts, and is that this can be in the relatively low liquid of the other input concentration in the bottom of internal-circulation anaerobic reactor 1 (water etc.), to dilute natural pond The concentration of liquid.
Further, internal-circulation anaerobic reactor 1 is provided with liquid return hole, is set between transfer container 10 and liquid return hole provided with backflow Standby 8, the reclaimed water that refluxing unit 8 has handled anaerobic ammonia oxidation reactor 3 in processing procedure carries out reuse, is used so as to save Water.In addition, the reclaimed water in transfer container 10 is also used as the approach such as long-term irrigation.
It is further preferred that the methane outlet of internal-circulation anaerobic reactor 1 is connected to by pipeline and generating (not shown) is set Standby, the pipeline for connecting generating equipment and methane outlet is provided with back-fire relief water seal 9.
It is further preferred that in order to strengthen the ammonia nitrogen removal efficiency of anaerobic ammonia oxidation reactor 3, filler is set in reactor Bacterium bed as ANAMMOX (red bacterium).The principle of anaerobic ammonia oxidation process belongs to any technique commonly known, is in this embodiment It is not described in detail.
In embodiment, initially entering the biogas slurry in biogas slurry pond 5 needs to carry out the regulation of ammonia nitrogen, so that follow-up depth anaerobism tool Standby feasibility.
Can enter in the reactor in advance it is further preferred that containing polyP bacteria in the sludge of aerobic nitrification reactor 2 The sludge for having cultivated polyP bacteria, can also be directly injected into reactor by row culture.Biogas slurry in aerobic nitrification reactor 2 is entered After entering aerobic state, polyP bacteria is stored in internal PHB and carries out aerobic decomposition and discharge big energy, and these energy parts are for poly- Phosphorus bacterium is rised in value, and is partly gathered as the phosphatic energy in its active absorption biogas slurry, phosphate in the form of poly- phosphorus in polyP bacteria In vivo；Substantial amounts of polyP bacteria is included in aerobic sludge, may be reached by the discharge of sludge and remove phosphatic purpose.
It is further preferred that polyP bacteria is also contained by the sludge discharged in aerobic nitrification reactor 2, then in backflow Under mode, it is back in the sludge of internal-circulation anaerobic reactor 1 and also contains polyP bacteria so that internal-circulation anaerobic reactor 1 also can It is enough to realize the purpose for dragging phosphorus.
The simply preferred embodiment of the present invention described above, it does not form limiting the scope of the invention.

Claims (9)

  1. A kind of 1. biogas slurry treatment device, it is characterised in that including：
    Internal-circulation anaerobic reactor (1), there is inlet, methane outlet, liquid outlet and liquid return hole；
    Aerobic nitrification reactor (2), inside sets aeration devices (21), and the liquid outlet of internal-circulation anaerobic reactor (1) leads to aerobic nitre Change the entrance of reactor (2)；
    Anaerobic ammonia oxidation reactor (3), its inlet communicate with the liquid outlet of aerobic nitrification reactor (2), and Anammox is anti- The liquid outlet of device (3) is answered to lead to transfer container (10).
  2. 2. biogas slurry treatment device according to claim 1, it is characterised in that：The aerobic nitrification reactor (2) is provided with row Mud mouth, the mud discharging mouth of aerobic nitrification reactor (2) pass to internal circulating anaerobic by pipeline and the reflux pump (4) being arranged on pipeline The sludge reflux mouth of reactor (1).
  3. 3. biogas slurry treatment device according to claim 2, it is characterised in that：The internal-circulation anaerobic reactor (1) is provided with Mud discharging mouth, the mud discharging mouth of the mud discharging mouth and aerobic nitrification reactor (2) of internal-circulation anaerobic reactor (1) are connected in parallel by pipeline Pass to afterwards in the biogas slurry pond (5) for adding original biogas slurry.
  4. 4. biogas slurry treatment device according to claim 3, it is characterised in that：Also include solid-liquid separator (6), the solid-liquid Separator (6) has biogas residue outlet, leads to the suction inlet in biogas slurry pond (5) and leads to the biogas slurry outlet in filtering pond (7), and interior circulation is detested The external feed pump (71) that liter liquid is taken out from filtering pond (7) of inlet of oxygen reactor (1).
  5. 5. biogas slurry treatment device according to claim 1, it is characterised in that：The transfer container (10) and internal circulating anaerobic Refluxing unit (8) is provided between the liquid return hole of reactor (1).
  6. 6. biogas slurry treatment device according to claim 1, it is characterised in that：The natural pond of the internal-circulation anaerobic reactor (1) Gas outlet is connected to generating equipment by pipeline, and the pipeline for connecting generating equipment and methane outlet is provided with back-fire relief water seal (9).
  7. 7. biogas slurry treatment device according to claim 1, it is characterised in that：The anaerobic ammonia oxidation reactor (3) is built-in Biological bacterium bed.
  8. 8. biogas slurry treatment device according to any one of claim 1 to 7, it is characterised in that：Aerobic nitrification reactor (2) Sludge in contain polyP bacteria.
  9. 9. biogas slurry treatment device according to claim 8, it is characterised in that：It is back to internal-circulation anaerobic reactor (1) Also polyP bacteria is contained in sludge.
CN201710828355.3A 2017-09-14 2017-09-14 A kind of biogas slurry treatment device Pending CN107399820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710828355.3A CN107399820A (en) 2017-09-14 2017-09-14 A kind of biogas slurry treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710828355.3A CN107399820A (en) 2017-09-14 2017-09-14 A kind of biogas slurry treatment device

Publications (1)

Publication Number Publication Date
CN107399820A true CN107399820A (en) 2017-11-28

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1626460A (en) * 2003-12-09 2005-06-15 中国科学院成都生物研究所 Bioreactor for treating wastewater
CN106186315A (en) * 2016-07-10 2016-12-07 北京工业大学 A kind of city domestic sewage flows the apparatus and method of AOA advanced nitrogen dephosphorization continuously
CN207227123U (en) * 2017-09-14 2018-04-13 广州沼能环保科技有限责任公司 A kind of biogas slurry treatment device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1626460A (en) * 2003-12-09 2005-06-15 中国科学院成都生物研究所 Bioreactor for treating wastewater
CN106186315A (en) * 2016-07-10 2016-12-07 北京工业大学 A kind of city domestic sewage flows the apparatus and method of AOA advanced nitrogen dephosphorization continuously
CN207227123U (en) * 2017-09-14 2018-04-13 广州沼能环保科技有限责任公司 A kind of biogas slurry treatment device

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Application publication date: 20171128