CN201433210Y - Methane lifting type intensified anaerobic reactor - Google Patents

Methane lifting type intensified anaerobic reactor Download PDF

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Publication number
CN201433210Y
CN201433210Y CN200920046593XU CN200920046593U CN201433210Y CN 201433210 Y CN201433210 Y CN 201433210Y CN 200920046593X U CN200920046593X U CN 200920046593XU CN 200920046593 U CN200920046593 U CN 200920046593U CN 201433210 Y CN201433210 Y CN 201433210Y
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gas
reactor
reaction chamber
liquid separator
anaerobic
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阮文权
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Changzhou river card of environmental science and Technology Co Ltd
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Jiangnan University
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    • 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
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    • 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
    • C12M45/00—Means for pre-treatment of biological substances
    • C12M45/04—Phase separators; Separation of non fermentable material; Fractionation
    • 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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/10—Separation or concentration of fermentation products
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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Abstract

The utility model relates to a methane lifting type intensified anaerobic reactor, which belongs to the field of organic waste water treating devices. A gas-liquid separator is arranged at the top ofthe reactor; a reactor body is a cylindrical tank and comprises an upper part and a lower part, wherein the lower part is provided with a first anaerobic reaction chamber and the upper part is provided with a second anaerobic reaction chamber; a water inlet is arranged at the bottom of the first anaerobic reaction chamber, a gas-collecting hood is arranged at the upper part of the first anaerobicreaction chamber, and a methane lifting pipe is arranged on the upper part of the gas-collecting hood and communicated with the gas-liquid separator from the side; a methane discharge pipe is arrangedon the top of the gas-liquid separator and the bottom of the gas-liquid separator is connected with a backflow pipe; another gas-collecting hood is arranged on the upper part of the second anaerobicreaction chamber, and a gas-collecting pipe is arranged on the upper part of the gas-collecting hood and communicated with the gas-liquid separator from the side; and a water outlet channel is arranged on the upper part of a settlement area of the second anaerobic reaction chamber and outlet water flows out of a water outlet pipe through the water outlet channel. The utility model has high stability and high load, can effectively treat organic waste water with high concentration and generate methane.

Description

A kind of biogas-lift reinforced anaerobic reactor
Technical field
A kind of biogas-lift reinforced anaerobic reactor.Specifically, be to handle various organic waste waters to produce biogas, and under the castering action of biogas, produce the reinforced anaerobic reactor of internal recycle.Belong to the organic waste-water treating apparatus field.
Background technology
Water environment pollution and shortage of water resources are the two large problems that the whole world is faced with.At present, the annual total amount of sewage discharge of China is 39,500,000,000 m 3, according to prediction, to the year two thousand fifty, China's total amount of sewage discharge will be up to 1,200 hundred million m 3
Along with the quickening of China's Economic development and city-building paces, urban population increases rapidly, and production, domestic consumption sharply increase.Show according to purple light investment corporation of Tsing-Hua University statistical information, the dirt of 2001～2007 years China, waste water draining annual growth 0.8%, expectation to 2010 year dirt, discharge of wastewater annual growth are 0.1%, and the year quantity of wastewater effluent to China in 2010 will increase to 76,300,000,000 tons like this.Increasing considerably of city dirt, wastewater discharge certainly will will cause serious threat to the water body environment quality.Therefore, based on advantages of environment protection, development and Application anaerobism sewage treatment process efficient and that have an additional functions has become problem demanding prompt solution, in sewage disposal, realizes innoxious, the recycling treatment of sewage.
Development Of Anaerobic Reactor has experienced anaerobic filter (AF), up-flow anaerobic sludge blanket (UASB), downstriker fixed-film reactor (DSFF), anaerobism coherent film expanded bed reactor (AAFEB), anaerobic fluidized bed (AFB), anaerobic grain sludge expanded bed (EGSB), anaerobism inner circulation reactor (IC), statistics shows, in the high efficiency anaerobic reactor of having developed, about 60% project has all adopted the UASB reactor technology in the anaerobic treatment engineering of having built up both at home and abroad, has also accounted for anaerobic technique based on the EGSB reactor of UASB reactor and has used totally about 11%, and the IC anaerobic reactor also successfully is applied in the processing of various waste water in a large number.As seen, anaerobic reactor has obtained lot of domestic and foreign scholar's generally approval as waste water treatment process efficient, low consumption, and has obtained widely and used.
Anaerobic reactor will have two principles that higher organic loading just must satisfy simultaneously: 1. can keep bigger activated sludge concentration and enough sludge ages; 2. keep mass transfer process good between waste water and the mud.But the contradiction between the two becomes the basic factor that the restriction anaerobic reactor further improves organic loading.It is slow that digestion rate often appears in traditional anaerobic reactor (for example UASB, EGSB reactor), and gas production rate is few, and agitaion is little, and mass transfer process worsens, and sludge loss causes processing efficiency to descend.High efficiency anaerobic reactor through improvement has been realized " high loading and sludge loss are separated " when keeping higher sludge concentration, strengthened mass transfer process.In addition, the reactor floorage is little, elevation is big, hydraulic load is directly proportional with the area of reactor under the identical situation of reactor volume, the aerogenesis load is directly proportional with the height of reactor, and the height of this reactor is generally 2～5 times of the UASB reactor, under same condition, its hydraulic load and aerogenesis load also are 2～5 times of UASB reactor, and mass transfer process is better than UASB reactor.
In all many-sides such as volumetric loading, power consumption, construction costs, floor spaces, this reactor has absolute advantage, it is a kind of breakthrough to modern high efficiency anaerobic reactor, important in theory meaning and practical value are arranged, further research and develop high efficiency anaerobic reactor, promoting its range of application has become one of key content of current anaerobic waste water processing.
Summary of the invention
The purpose of this utility model provides a kind of biogas-lift reinforced anaerobic reactor, can effectively handle high concentrated organic wastewater and produce biogas.
The technical solution of the utility model: biogas-lift reinforced anaerobic reactor, be called for short reactor, reactor head is a gas-liquid separator 4, reactor is as garden tubular jar, divide two portions up and down, the bottom is the first anaerobic reaction chamber 1, top is the second anaerobic reaction chamber 8, be provided with top, water-in anaerobic reaction chamber 7, the first in bottom, the first anaerobic reaction chamber gas skirt 2 is housed, biogas-lift pipe 3 is equipped with on gas skirt 2 tops, biogas-lift pipe 3 is connected with gas-liquid separator 4 from the side, gas-liquid separator 4 tops are provided with biogas vent pipe 5, and gas-liquid separator 4 lower curtates connect return line 6, on the second anaerobic reaction chamber gas skirt 9 are housed, effuser 10 is equipped with on gas skirt 9 tops, effuser 10 is connected with gas-liquid separator 4 from the side, is provided with out water channel 11 on the top of the settling region of the second anaerobic reaction chamber, and water outlet is flowed out by rising pipe 12 through going out water channel.
Waste water enters souring tank, enters first reaction chamber 1 by souring tank through reactor bottom water-in 7 again, and with the anaerobic grain sludge uniform mixing, most of organism is converted into biogas here.The biogas that is produced is collected by the gas skirt 2 of the first anaerobic reaction chamber, biogas rises along biogas-lift pipe 3, when biogas rises the mixed solution of the first anaerobic reaction chamber is promoted to the gas-liquid separator 4 of reactor head, separated biogas is drained from the biogas vent pipe 5 at gas-liquid separator top, isolated muddy water mixed solution will turn back to the bottom of the first anaerobic reaction chamber along return line 6, and with the granule sludge of bottom and water inlet thorough mixing, realized the internal recycling of mixed solution.
Through the waste water that handled the first anaerobic reaction chamber, can enter the second anaerobic reaction chamber 8 automatically and be proceeded to handle.Residual organic substances in the waste water is further degraded by the indoor anaerobic grain sludge of second anaerobic reaction, and waste water is better purified, and improves effluent quality.The biogas that produces is collected by the gas skirt 9 of the second anaerobic reaction chamber, enters gas-liquid separator by effuser 10, and separated biogas is drained from the biogas vent pipe at gas-liquid separator top.The muddy water of the second anaerobic reaction chamber carries out solid-liquid separation in the mixed solution settling region, and the supernatant liquor of handling is drained by rising pipe 12 through going out water channel 11, and sedimentary granule sludge returns the second anaerobic reaction chamber automatically.Like this, waste water has just been finished the whole process of handling.By above introduction as can be seen, reactor is actually by eclipsed reaction chamber about in the of two and is composed in series.The biogas that produces with following first anaerobic reaction chamber has been realized the internal recycle of bottom mixed solution as power, makes waste water obtain the pre-treatment of strengthening.Aftertreatment is proceeded to waste water in second top anaerobic reaction chamber, makes water outlet reach the processing requirements of expection.
The beneficial effects of the utility model:
1) high stability, high loading can be handled low-concentration organic waste water and contain high density toxic substance waste water.
2) adopt inside and outside circulation and biogas round-robin compound recycle mode, improve the mass transfer condition between the microorganism and matrix in the reactor, accelerate speed of reaction, improve sewage treating efficiency, keep the needed best living environment of anaerobic bacterium.
3) microorganism all is present among the reactor in the granule sludge mode, and the biomass of reactor unit volume is higher, bears higher hydraulic load, up to 40kg/m.d, has higher organic pollutant purification efficiency.
4) have bigger aspect ratio, generally 4～8, load is high, and volume is little, takes up an area of to economize.
5) Sludge Bed is in and suspends or swelling state, and sludge age is long, and sludge yield is few, and power consumption is little.
6) important parameter in the online reflection reactor of energy has multiple additional effect such as denitrogenation, desulfurization.
7) ability of Chu Liing is compared with former technology, and processing efficiency and contamination index's processing rate all improve a lot, and the device processes efficient of unit volume is original 3-5 times, and the clearance of pollutent index improves 20%-30%.
8) aspect investment cost, handle the conversion unit and the floor space volume of same amount waste water and want little 50%-70%, the expense of reducing investment outlay.
In the past few years, oneself is successfully amplified the basic, normal, high concentration waste water that is applied to handle in various trade effluents and the farming industry anaerobism technology such as UASB, EGSB, IC reactor, as industries such as dairy products industry, food-processing industry, Brewing industry waste water.
Along with deepening continuously that third generation anaerobic reactor is studied, novel ultra-high efficiency anaerobic reactor has vast potential for future development at the industrial wastewater treatment organic pollutant that is applied to, and will more and more substitute reactors such as UASB, EGSB.Therefore, exploitation is also used high efficiency anaerobic reactor, improve the treatment efficiency of reactor, dwindle the volume of reactor, reduce construction investment, save floor space, for the such land resources anxiety of China, the fund relative deficiency, and the more urgent country of environmental requirement has very big realistic meaning.
Description of drawings
Fig. 1 biogas-lift reinforced anaerobic reactor synoptic diagram.1, the first anaerobic reaction chamber, 2, gas skirt, 3, the biogas-lift pipe, 4, gas-liquid separator, 5, the biogas vent pipe, 6, return line, 7, water-in, 8, the second anaerobic reaction chamber, 9, gas skirt, 10, effuser, 11, go out water channel, 12, rising pipe.
Embodiment
Before actual motion, at first will be to the anaerobic reactor seed sludge, sludge volume is about 1/2 of reactor volume, progressively improve the load of reactor by gradient, carry out the domestication of mud, i.e. the startup of reactor, the control inflow temperature is at 30～35 ℃, and whole starting process approximately needs 30 days.
After reactor start-up finishes, beginning is water inlet continuously, water inlet is regulated pH 6.5～8.0, inject pretreatment system by intake pump, and inject anaerobic reactor, control sludge loss rate 10 ‰ by water pump, under middle temperature (30～35 ℃) condition, carry out anaerobically fermenting, water inlet COD is approximately 40000mg/L, and water outlet is 5000～6000mg/L, and anaerobic reactor can reach more than 85% the clearance of COD.In December, 2008, Southern Yangtze University has successfully utilized this high efficiency anaerobic reactor (biogas-lift reinforced anaerobic reactor) that the percolate of Wuxi favour connection rubbish heat power plant is handled, and reactor diameter is 8m, highly is 23.6m, useful volume 800m 3, water inlet COD is 40000mg/L, and flow is 300t every day, and water outlet COD is about 5000mg/L, and clearance is up to 85%, and the processing of percolate has been reached good treatment effect.

Claims (1)

1, a kind of biogas-lift reinforced anaerobic reactor, be called for short reactor, it is characterized in that reactor head is gas-liquid separator (4), reactor is as garden tubular jar, divide two portions up and down, the bottom is the first anaerobic reaction chamber (1), top is the second anaerobic reaction chamber (8), be provided with water-in (7) in bottom, the first anaerobic reaction chamber, gas skirt (2) is equipped with on top, the first anaerobic reaction chamber, biogas-lift pipe (3) is equipped with on gas skirt (2) top, biogas-lift pipe (3) is connected with gas-liquid separator (4) from the side, gas-liquid separator (4) top is provided with biogas vent pipe (5), and gas-liquid separator (4) bottom connects return line (6), and gas skirt (9) is housed on the second anaerobic reaction chamber, effuser (10) is equipped with on gas skirt (9) top, effuser (10) is connected with gas-liquid separator (4) from the side, is provided with out water channel (11) on the top of the settling region of the second anaerobic reaction chamber, and water outlet is flowed out by rising pipe (12) through going out water channel.
CN200920046593XU 2009-06-13 2009-06-13 Methane lifting type intensified anaerobic reactor Expired - Lifetime CN201433210Y (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540084A (en) * 2016-06-23 2018-01-05 帕克环保技术(上海)有限公司 Anaerobic fermentation reaction unit
CN110777056A (en) * 2018-07-30 2020-02-11 王光明 Integrated medium-temperature anaerobic reaction device
CN113003719A (en) * 2021-03-23 2021-06-22 江苏激扬环境科技有限公司 Forced air-stripping mixing and stirring anaerobic reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540084A (en) * 2016-06-23 2018-01-05 帕克环保技术(上海)有限公司 Anaerobic fermentation reaction unit
CN110777056A (en) * 2018-07-30 2020-02-11 王光明 Integrated medium-temperature anaerobic reaction device
CN113003719A (en) * 2021-03-23 2021-06-22 江苏激扬环境科技有限公司 Forced air-stripping mixing and stirring anaerobic reactor

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Owner name: WUXI MASHENG ENVIRONMENT ENERGY TECHNOLOGY CO., LT

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Address before: 214122 Jiangsu Province, Wuxi City Lake Road No. 1800 Jiangnan University College of environment and civil engineering

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