CN108033555A - A kind of method of the quick anaerobic biological treatment for starting garbage burning factory Leachate site - Google Patents

A kind of method of the quick anaerobic biological treatment for starting garbage burning factory Leachate site Download PDF

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Publication number
CN108033555A
CN108033555A CN201711189387.XA CN201711189387A CN108033555A CN 108033555 A CN108033555 A CN 108033555A CN 201711189387 A CN201711189387 A CN 201711189387A CN 108033555 A CN108033555 A CN 108033555A
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anaerobic
reactor
leachate site
biological treatment
garbage burning
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CN108033555B (en
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孙德智
雷雨晴
党岩
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Xinneng Qinglin Beijing Technology Co ltd
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Beijing Forestry University
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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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/20—Material Coatings
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/22—Heat exchange systems, e.g. heat jackets or outer envelopes in contact with the bioreactor walls
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • 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
    • C02F2103/06—Contaminated groundwater or leachate
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/59—Biological synthesis; Biological purification

Abstract

The present invention proposes a kind of quick method for starting garbage burning factory Leachate site anaerobic biological treatment of the processing containing high COD concentration (50,000 70,000mg/L), concretely comprises the following steps：(1) inoculation accounts for the anaerobic sludge of upflow anaerobic sludge blanket reactor (UASB) volume ratio 40%; the conducting function material (through special modified granular activated carbon) of 75g/L is added into system, drip stoste is oozed and is directly entered UASB reactors；(2) by adjusting the organic loading of hydraulic detention time (HRT) and control process system, the quick startup and stable operation of Leachate site biological treatment system are realized.The conducting function material that the present invention adds, pass through the electron transfer process between microorganism in consolidation system, promote the efficient degradation of organic matter, reduce the influence of impact load and high concentration mesostate (such as propionic acid) that processing system in start-up course is subject to, realize and ooze drip stoste and directly handle, and greatly shorten the startup time of UASB reactors, improve the stability and treatment efficiency of reaction system, increase methane production, improve energy recovery rate.

Description

A kind of method of the quick anaerobic biological treatment for starting garbage burning factory Leachate site
Technical field
The present invention provides a kind of quickly startup and (COD is at concentrations up to 50,000- for efficient degradation garbage burning factory Leachate site The method of anaerobic biological treatment 70,000mg/L).Mainly by conducting function material, in fortification system microorganism it Between electron transfer process, accelerate organic matter degradation, realize ooze drip stoste directly quickly start anaerobic biological treatment mesh 's.This method is primarily adapted for use in high concentrated organic wastewater biological treatment field.
Background technology
With rapid urban and the improvement of people's living standards, domestic waste largely produces, waste incineration As a kind of garbage decrement, innoxious, recycling effective means, have been more and more widely used in recent years.China city Rubbish from cooking proportion is big in city's house refuse, and water content is high, and storage hole processing 3-7 days is generally required before burning disposal, this Process can produce substantial amounts of Leachate site, it is necessary to focus on.Compared to waste landfill site leachate, fresh the oozing of incineration plant generation Dripping stoste has high COD concentration (50,000-70,000mg/L), the good (BOD/COD of biodegradability>0.4), easily biological-degradable The features such as Volatile fatty acid contents are high.
Patent CN102153233A reports a kind of garbage burning factory percolation liquid treatment method and system.This method passes through mixed Retrogradation shallow lake, UASB+A/O techniques, MBR techniques, electrochemical reactor technique and reverse osmosis membrane processing technique are combined, and are realized above-mentioned The processing system of method can be by the garbage leachate qualified discharge after processing.
Patent CN105417843A reports a kind of processing method of Municipal Solid Waste Incineration Plant Leachate site zero-emission.Should Method detests heavy pond-anoxic pond-aerobic tank-ultrafiltration membrane-nanofiltration-reverse osmosis group including grid-hydrolysis acidification pool-anaerobic reactor- Technique is closed, water outlet reaches national recycle water standard.
Patent CN106145351A reports a kind of processing equipment of garbage incinerating power plant Leachate site.The processing equipment makes Leachate site carries out homogeneous and measures successively, anaerobic digestion, level-one biochemical treatment, nitrification precipitation, denitrification adjustment, at secondary biochemical Reason and denitrification precipitation, the efficient organic matter removed in Leachate site, realize efficient denitrification.
The garbage burning factory percolation liquid treatment method of the patent description of the open report of the above 3 uses " physical chemistry+detest The combined technical methods such as oxygen digestion+aerobic nitrogen removal+film establishment advanced treating ".Anaerobic digestion is used as and organic concentration is greatly reduced Main process, have technology investment it is small, consumption it is relatively low, the advantages such as operating cost is low, are widely used.However, in reality In the processing procedure of border, to realize the processing for oozing drip stoste to high concentration, it usually needs the very long sludge acclimatization time.Detesting In oxygen bioreactor start-up course, the organic matter of high concentration, which is degraded by microorganisms, to be easy to cause the mesostates such as propionic acid A large amount of accumulation, processing system fluctuation of service is even acidified collapse.Meanwhile in Practical Project, waste incineration leachate Anaerobic Treatment unit need the dilution water inlet of a large amount of recirculation waters, considerably increase processing cost.
Patent CN102910732A reports a kind of method that high concentrated organic wastewater quickly starts anaerobic reactor.Pass through Priming inoculation sludge, entering organic matter of water concentration step up influent concentration value to design from the 20% of design load, connect again Kind sludge, gradually reduces hydraulic detention time to design load, reactor start-up success, exists applied to COD concentration at present stage by stage The organic wastewater of 10,000mg/L or so.This method is low in start-up course organic concentration at initial stage, for high COD concentration Garbage burning factory Leachate site, water inlet need with largely flow back be diluted with water, greatly increase start-up cost.Meanwhile it is inoculated with twice Sludge increases Practical Project operation difficulty.
Patent CN105731640A reports a kind of magnetic iron ore enhanced biological electrode coupled mode UASB devices and operation method. This method in bioelectrochemistry anaerobic reactor by adding nano magnetite, and accelerating reactor starts, applied to COD concentration In the simulated wastewater of 5000mg/L or so.This method does not have to report the complicated waste water that whether can handle high COD concentration, such as adopts The garbage burning factory that high COD concentration is handled with this method oozes drip stoste, since bioelectrode energy consumption is larger, can greatly increase fortune Seek difficulty and cost.
Patent CN107043160A report it is a kind of based on the diphasic anaerobic processing unit that magnetic iron ore and activated carbon are strengthened with Technique, can be applied to upgrading of the existing diphasic anaerobic technique for the waste water impact of resistance high organic loading.Although this method exists It can improve hydrolysis acidification efficiency under higher organic loading, but inlet COD concentration is only in 6000-10,000mg/L or so, It is not suitable for the garbage burning factory Leachate site with high COD concentration.
Patent CN106830308A describes a kind of side for accelerating anaerobism propionic acid and butyric acid decomposition using ethanol and charcoal Method, contains propionic acid or butyric acid waste water in 5,000mg/L or so applied to COD concentration, is not suitable for the rubbish with high COD concentration Rubbish incineration plant Leachate site.
Domestic be directed to has high COD concentration and the waste incineration leachate anaerobic organism containing Various Complex component at present The method that processing system quickly starts does not have patent report also.Therefore, the present invention proposes a kind of by adding modified particle Activated carbon is realized as conducting function material and directly oozes the method that drip stoste quickly starts anaerobic biological reactor.Conducting function Material can be enriched with out a variety of bacteriums with extracellular electron transfer function, these bacteriums can carry out electronics by conductive material Transmit, electron transmission is given to the methanogen that can directly receive electron reduction carbon dioxide and produce methane, and then accelerate organic The degraded of thing, forced mathane yield, realizes that garbage burning factory oozes drip stoste and directly initiates anaerobic reactor, and greatly shortens startup The purpose of time.
The content of the invention
The object of the present invention is to provide one kind by add conducting function material realize direct waste incineration ooze drip stoste it is fast Speed starts anaerobic biological reactor.This method, which can greatly shorten, starts the time, improves treatment effect, while saves a large amount of reflux Thinned water, the payment for initiation for reducing anaerobic biological treatment are used.
In the method, the anaerobic biological reactor of use includes：Drip stoste water tank inlet (1), water pump are oozed in waste incineration (2), anaerobic reactor water inlet (3), anaerobic reactor mudhole (4), anaerobic reactor heating tape (5), temp probe (6), Three separators (7), anaerobic reactor venthole (8), anaerobic reactor water outlet (9), temperature control (10)
In the method, in anaerobic sludge, conducting function material is added, is sufficiently mixed.
In the method, conducting function material is pre-processed by ultrasound, removes the impurity on surface.
In the method, the conducting function material concentration in anaerobic biological reactor is added in 75-100g/L.
In the method, drip stoste is oozed in handled waste incineration has high COD concentration (50,000-70,000mg/ L), the evident characteristic of high-concentration ammonia-nitrogen, belongs to high concentrated organic wastewater category；
The purpose of the present invention implements by the following technical programs：
Sludge pretreatment：Take anaerobic sludge and the concentration of volume ratio 30-50% abundant for 75-100g/L conducting function materials Mixing is added in anaerobic biological reactor.
Drip stoste is oozed as water inlet (COD concentration 50,000-70,000mg/L) using waste incineration, anaerobism is introduced by water pump and is given birth to Thing reactor, controls 30-35 DEG C of running temperature in reactor.
Adjusting initial HRT, (organic loading is in 6kgCOD/ (m in 8-12d3D) left and right), by measuring COD removal rates, production The index such as methane speed and water outlet VFAs concentration, after question response device is stable, is gradually shortened HRT to the organic negative of requirement of engineering Lotus.
Technical principle：The conducting function material being added in anaerobic sludge, can be enriched with extracellular electronics on its surface The function bacterium of transmission and the ancient bacterium that can directly receive electron reduction carbon dioxide generation methane, and then between enhancement microbiological Direct electron transfer ability, so as to improve methane phase speed, promote the efficient degradation of organic matter, reduce system in start-up course Be subject to impact load and high organic concentrations influenced, reach direct stoste and start, greatly shorten anaerobic biological reactor and open The purpose of dynamic time.
Brief description of the drawings
Fig. 1 is anaerobic bio-treated reactor schematic diagram of the present invention
Fig. 2 is the treatment effect figure for starting anaerobic biological reactor using the present invention
Embodiment
In embodiment, intake and ooze drip stoste from what incineration treatment of garbage factory of Beijing produced, its water quality refers to Mark is as follows：COD 55,000mg/L or so, BOD 20,000mg/L or so, NH4 +- N 820mg/L or so, TN 1100mg/L are left It is right.Start two groups of UASB reactors at the same time.
Take inoculum concentration to account for reactor volume and do not tame anaerobic sludge than 40%, experimental group adds 75g/L conducting function materials Material, mixes, is added in anaerobic biological reactor, blank group does not add any material, is added directly into anaerobic biological reactor In, two groups of sludge concentrations are 0.66VSS/L.Directly drip stoste is oozed using not diluted waste incineration to set as water inlet, HRT For 9.3 days, organic loading 5.9kgCOD/ (m3D), 33 DEG C of temperature.On this condition, blank group COD removal rates continue to decline To less than 50%, anaerobic reactor starts failure (such as Fig. 2).And experimental group is run 60 days, COD removal rates are gradually increasing by 75% To 95%, and can stable operation.Further shorten HRT to 4.6 days, lifting organic loading to 12.0kgCOD/ (m3D), herein Under the conditions of run 15 days, COD removal rates gradually rise to 95% by 74%, and can stable operation, at this time anaerobic reactor start Complete.
For further lifting anaerobic biological reactor treatment efficiency, gradient shortens HRT to 2.2 days, and lifting organic loading arrives 25kgCOD/(m3D), on this condition COD removal rates all-the-time stable 90% or so.

Claims (6)

1. the present invention proposes one kind by adding conducting function material, the quick anaerobic organism for starting garbage burning factory Leachate site The method of processing system, the anaerobic reactor include：Garbage burning factory Leachate site water tank inlet (1), water pump (2), anaerobism Reactor water inlet (3), anaerobic reactor take mud hole (4), anaerobic reactor heating tape (5), temp probe (6), three separation Device (7), anaerobic reactor venthole (8), anaerobic reactor water outlet (9), temperature control (10).
A kind of 2. side of quick anaerobic biological treatment for starting garbage burning factory Leachate site according to claim 1 Method, it is characterised in that conducting function material is added in anaerobic sludge.
A kind of 3. side of quick anaerobic biological treatment for starting garbage burning factory Leachate site according to claim 1 Method, it is characterised in that handled Leachate site has the obvious water quality characteristics of high COD and ammonia nitrogen concentration, and it is organic to belong to high concentration Waste water category.
A kind of 4. side of quick anaerobic biological treatment for starting garbage burning factory Leachate site according to claim 1 Method, it is characterised in that be directly realized by and ooze drip stoste startup anaerobic biological treatment, greatly save reflux dilution water, reduce Start-up cost.
A kind of 5. side of quick anaerobic biological treatment for starting garbage burning factory Leachate site according to claim 1 Method, mainly includes the following steps that：
1) before reactor seed sludge, conducting function material is added into anaerobic sludge, is stirred and evenly mixed；The conducting function material Expect for modified granular activated carbon, in black, particle diameter be 20-30 mesh, specific surface area be about 1000m3/ g, electrical conductivity are about 26 μ S/cm, the dosage in reactor are 75g/L；
2) inoculation step 1 in anaerobic biological reactor) obtained mixing sludge, reactor volume is accounted for than 40%, oozes drip stoste It is directly entered reactor；
3) initial HRT is set at 10 days or so, organic loading 6kgCOD/ (m3D) left and right.Gradient shortens HRT, is lifted organic negative Lotus is to setting value.Temperature control is at 35 DEG C or so.
A kind of 6. side of quick anaerobic biological treatment for starting garbage burning factory Leachate site according to claim 1 Method, by adding conducting function material, the electron transfer process in fortification system between microorganism, improves efficiently using for electronics Rate, promotes the efficient degradation of organic matter, reduces system is subject in start-up course impact load and high concentration mesostate The influence of (such as propionic acid), achievees the purpose that shortening anaerobic biological reactor starts the time, meanwhile, this method can increase the production of methane Raw amount, improves anaerobic bio-treated efficiency, cost-effective.
CN201711189387.XA 2017-11-24 2017-11-24 Method for quickly starting anaerobic biological treatment system of leachate of waste incineration plant Active CN108033555B (en)

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Cited By (3)

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CN109231443A (en) * 2018-09-25 2019-01-18 大连理工大学 A kind of industrial wastewater anaerobism desulfurizer and technique based on magnetic iron ore reinforcing
CN109231449A (en) * 2018-10-15 2019-01-18 南京师范大学 A method of improving sulfate-containing organic wastewater methane phase efficiency
CN109970187A (en) * 2019-03-21 2019-07-05 浙江大学 A kind of devices and methods therefor adding biomass carbon particle strengthening UASB processing performance

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CN109231443A (en) * 2018-09-25 2019-01-18 大连理工大学 A kind of industrial wastewater anaerobism desulfurizer and technique based on magnetic iron ore reinforcing
CN109231449A (en) * 2018-10-15 2019-01-18 南京师范大学 A method of improving sulfate-containing organic wastewater methane phase efficiency
CN109970187A (en) * 2019-03-21 2019-07-05 浙江大学 A kind of devices and methods therefor adding biomass carbon particle strengthening UASB processing performance

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