CN102806226A - Kitchen garbage treatment device and use method of kitchen garbage treatment device - Google Patents
Kitchen garbage treatment device and use method of kitchen garbage treatment device Download PDFInfo
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- CN102806226A CN102806226A CN2012102722709A CN201210272270A CN102806226A CN 102806226 A CN102806226 A CN 102806226A CN 2012102722709 A CN2012102722709 A CN 2012102722709A CN 201210272270 A CN201210272270 A CN 201210272270A CN 102806226 A CN102806226 A CN 102806226A
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Abstract
The invention relates to a kitchen garbage treatment device and a use method of the kitchen garbage treatment device. The kitchen garbage treatment device consists of a single phase anaerobic digestion reactor, a gas transmission pipe, a gas circulating pump, an alkali liquid absorption device, a gas production metering device and a vacuum pump, wherein the single phase anaerobic digestion reactor comprises a lower hollow long and thin part and an upper three-phase separator, the alkali liquid absorption device is internally filled with NaOH, the gas production metering device is a glass water column which is inverted and is provided with scales, the gas circulating pump is connected with the lower end of the single phase anaerobic digestion reactor and the upper end of the alkali liquid absorption device through the gas transmission pipe, the upper end of the single phase anaerobic digestion reactor is connected with the lower end of the alkali liquid absorption device and the lower end of the gas production metering device, and the upper end of the gas production metering device is connected with the vacuum pump through the gas transmission pipe. According to the kitchen garbage treatment device, the acidity in the reactor can be reduced, and the processing efficiency of single phase anaerobic digestion process of the kitchen garbage can be improved.
Description
Technical field
The present invention relates to the treating apparatus and the method for rubbish from cooking, particularly the single-phase Anaerobic Digestion apparatus and method of rubbish from cooking.
Background technology
The single-phase anaerobic digestion process of rubbish from cooking occurs easily in improving the organic loading process that pH sharply descends in the system; Methanogen is suppressed the problem that causes system's operation failure owing to acidity is too high, the key of dealing with problems is an acidity in the reduction system when improving organic loading how.In the debirs anaerobic digestion process, low pH situation is caused by two kinds of acidity, VFA (VFA acidity) and H
2CO
3Acidity.VFA is considered to a major reason of anaerobic digestion process failure usually, and by high CO
2The H that dividing potential drop causes
2CO
3Acidity seldom obtains paying close attention to.The present invention is directed to the high CO that produces in the anaerobic digestion process
2Dividing potential drop adopts and removes CO in the gas phase
2, to improve organic loading and technology stability in the single-phase anaerobic digestion process of rubbish from cooking.
Summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned prior art, a kind of kitchen refuse processing apparatus and processing method thereof are provided, adopt to add alkali lye absorption plant removal CO in the aerogenesis refluxing and stirring process
2Gas reduces acidity in the reactor, to improve the treatment effeciency of the single-phase anaerobic digestion process of rubbish from cooking.
For realizing that above-mentioned purpose the present invention adopts following technical scheme:
A kind of kitchen refuse processing apparatus; Form by single-phase anaerobic digestion reaction vessel, appendix, gas circulator, alkali lye absorption plant, aerogenesis metering device and vavuum pump; Said single-phase anaerobic digestion reaction vessel is made up of bottom hollow elongated portion and top three phase separator; Mass concentration is housed is 5% NaOH in the said alkali lye absorption plant, said aerogenesis metering device is an inverted glass water column and a tank that has scale; Said gas circulator links to each other with said alkali lye absorption plant upper end with said single-phase anaerobic digestion reaction vessel lower end respectively through appendix; The upper end of said single-phase anaerobic digestion reaction vessel through appendix respectively with the lower end of said alkali lye absorption plant and the lower ends of said aerogenesis metering device; The upper end of said aerogenesis metering device links to each other with vavuum pump through appendix.
The invention also discloses a kind of method of using said kitchen refuse processing apparatus to handle rubbish from cooking, may further comprise the steps:
1, rubbish from cooking at first is broken into slurries, and recording total solid (TS) quality percentage composition is 20%, and it is 95% that volatile solid (VS) is formed the mass percent that accounts for TS, and the pH of charging rubbish from cooking is 3.9;
2, the single-phase anaerobic digestion process of rubbish from cooking moves with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes, in 22.5 hours reaction time, precipitates 1 hour, discharging 15 minutes;
3, rubbish from cooking is pumped into reactor by reactor lower part after; Open gas circulator; The gas that produces in the rubbish from cooking anaerobic digestion process is passed back into reactor with the speed of 100mL/min to be stirred reaction mass; In the gas circulation pipeline, add the alkali lye absorption plant, concrete operations are: the mist that produces in the anaerobic digestion process (mainly comprises methane and CO
2) before looping back reactor, at first feed NaOH solution with CO
2GAS ABSORPTION, NaOH solution quality percent concentration is set in 5%, through the reactor that refluxes back again of the gaseous mixture after the NaOH solution absorption reaction mass is stirred;
4, when the pH that utilizes pH meter to monitor NaOH solution is lower than pH10, utilize 5% NaOH solution exchange of new preparation to absorb alkali lye; The gas that does not have to reflux directly gets into the aerogenesis metering device.
The upper end of said unidirectional anaerobic digestion reaction vessel, alkali lye absorption plant and aerogenesis metering device is discharging place, and the lower end is charging place.
Advantage of the present invention is:
1, single-phase anaerobic digestion reaction vessel investment is low, operation and maintenance cost is low;
2, in single-phase anaerobic digestion process, add the alkali lye absorption plant and absorb CO
2After reducing the interior acidity of reactor, not only improve the processing load of single-phase anaerobic digestion reaction vessel, and improved the resistance to overload shock ability of single-phase anaerobic digestion process.
Description of drawings
Fig. 1 is the single-phase anaerobic digestion reaction vessel of rubbish from cooking that the inventive method adopted.
Fig. 2 is a flow chart of the present invention.
The specific embodiment
Used kitchen refuse processing apparatus constitutes as shown in Figure 2 by single-phase anaerobic digestion reaction vessel 1, appendix 2, gas circulator 4, alkali lye absorption plant 3, aerogenesis metering device 5 and vavuum pump 6 in following examples.Single-phase anaerobic digestion reaction vessel is made up of bottom hollow elongated portion 8 and top three phase separator 7, and is as shown in Figure 1; Gas circulator adopts Lange peristaltic pump (model BT300-2J), and appendix adopts silicone tube (bore is 9.6mm); The 250mL solvent bottle that mass percent concentration is 5% NaOH is equipped with in the utilization of alkali lye absorption plant, is inverted; Adopt drainage metering method metering gas production, adopt inverted glass water column in the drainage.At first the rubbish from cooking charging is packed in the reactor; After finishing, charging opens gas circulator; Recyclegas through threeway get into reactor to rubbish from cooking charging stir; Gas in the reactor three phase separator gas compartment at first gets into inverted alkali lye absorption plant through piping, through alkali lye absorption plant CO
2Residual gas after being absorbed gets into the gas circulation pipeline again and is squeezed into reactor again by gas circulator; Single-phase anaerobic reactor three phase separator top aerogenesis removes entering alkali lye absorption plant; All the other get into the inversion glass water column in the gas dosing device; Gas dosing device reading at first before each charging utilizes vavuum pump will be inverted that the page is promoted to initial scale in the glass water column behind the reading.
COD and TS assay method are measured according to list of references " APHA Standard Method for the Examination of Water and Waterwater 1995 " in following examples; Bicarbonate alkalinity is measured according to list of references " anaerobic bio-treated 1998 of He Yan waste water in age ".
Embodiment 1:
1, rubbish from cooking at first is broken into slurries, and the mass percent concentration that records total solid (TS) is 20%, and it is 95% that volatile solid (VS) is formed the mass percent concentration that accounts for TS; The pH of charging rubbish from cooking is 3.3; During charging rubbish from cooking is diluted with running water, the mass percent concentration of the total solid of the rubbish from cooking after the dilution (TS) is 4.3%, and charging COD concentration is 51g/L; Hydraulic detention time is 10 days, and the charging COD load of rubbish from cooking is 4.3g (Ld)
-1
2, the single-phase anaerobic digestion of rubbish from cooking is carried out in dischargeable capacity is the glass reactor of 2L, and reactor is shown in accompanying drawing 1.Reactor is made up of the elongated portion and the top three phase separator of bottom hollow.The lower elongate section diameter is 60mm, high 400mm; Top spherical part diameter is 150mm.The single-phase anaerobic digestion process of rubbish from cooking moves with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes; 22.5 hours reaction time; Precipitate 1 hour, discharging 15 minutes, the single-phase anaerobic digestion of rubbish from cooking is reflected in the greenhouse in 35 ℃ to be carried out;
3, rubbish from cooking is pumped into reactor by the reactor lower part elongated portion after; Open gas circulator, a part of gas that produces in the rubbish from cooking anaerobic digestion process is passed back into reactor with the speed of 100mL/min reaction mass is stirred with reflux gas; In the gas circulation pipeline, add the alkali lye absorption plant, concrete operations are: the mist that produces in the anaerobic digestion process (mainly comprises methane and CO
2) before looping back reactor, at first feed NaOH solution with CO
2GAS ABSORPTION, NaOH solution quality percent concentration is set in 5%, through the reactor that refluxes back again of the gaseous mixture after the NaOH solution absorption reaction mass is stirred;
4, when the pH that utilizes pH meter to monitor NaOH solution is lower than pH10, the mass percent concentration that utilizes new preparation is 5% NaOH solution exchange absorption alkali lye; The mixed air that another part does not have to reflux directly gets into the aerogenesis metering device.
After this process stabilizing moves 30 days; COD, TS, methane production, bicarbonate alkalinity and VFA concentration have been detected respectively; Organic acid composition lactic acid, formic acid, acetate, propionic acid and butyric acid adopt high performance liquid chromatography (2010A) to measure in the hydrolysis acidification product, test used instrument and produce 2010A type high performance liquid chromatography, UV-detector for day island proper Tianjin company; The C18 reverse-phase chromatographic column, the CLASS-VP chromatographic work station.Flowing phase be volume ratio 15% chromatographically pure methyl alcohol and 85% potassium dihydrogen phosphate buffer solution (15mmol/L, mixed liquor pH=2.1), flow velocity 1.5mL/min, the detection wavelength is 210nm, column temperature is 25 ℃, sample size is 5 μ L.Specimen at first through 4.4 μ m filter paper and 0.45 μ m membrane filtration, is diluted with flowing phase as required, gets into instrument behind the ultrasonic degas and measures; Gas volume is through the drainage metering; Wherein methane content is detected by the gas-chromatography that packed column TDX102 is housed (GC 14B); Laboratory apparatus adopts day island proper Tianjin company to produce GC-14B type gas chromatograph, thermal conductivity detector (TCD), stainless steel packed column (carrier TDX 1; Particle diameter 60-80 order is filled column length 2m * Ф 2mm).Condition determination: 100 ℃ of column temperatures, 100 ℃ of injector temperature, 120 ℃ of detector temperatures, operating current 65mA, carrier gas is an argon gas, flow 20mL/min, sample size 20 μ L.COD and TS clearance subtract discharging COD and the TS concentration concentration divided by charging COD and TS by charging COD and TS concentration respectively.Testing result shows: the clearance of COD is 68%, and the TS clearance is 63%, and methane production is 1.5L (Ld)
-1, bicarbonate alkalinity is 5.2g/L, and the VFA concentration in the out-feed liquid is 3.6g/L, and pH is 8.
Embodiment 2:
1, rubbish from cooking at first is broken into slurries, and the quality percentage composition that records total solid (TS) is 20%, and the mass percent that volatile solid component (VS) accounts for TS is 95%; The pH of charging rubbish from cooking is 3; During charging rubbish from cooking is diluted with running water, the rubbish from cooking TS after the dilution is 6.1%, and charging COD concentration is set at 82g/L; Hydraulic detention time is 13.3 days, and the charging COD load of rubbish from cooking is 6.2g (Ld)
-1
2, the single-phase anaerobic digestion of rubbish from cooking is carried out in dischargeable capacity is the glass reactor of 2L, and reactor illustrates shown in accompanying drawing 1.Reactor is made up of lower elongate part and top three phase separator, and the lower elongate section diameter is 60mm, high 400mm; Top spherical part diameter is 150mm.The single-phase anaerobic digestion process of rubbish from cooking moves with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes; 22.5 hours reaction time; Precipitate 1 hour, discharging 15 minutes, the single-phase anaerobic digestion of rubbish from cooking is reflected in the greenhouse in 35 ℃ to be carried out;
3, rubbish from cooking is pumped into reactor by reactor lower part after, open gas circulator, a part of gas that produces in the rubbish from cooking anaerobic digestion process is passed back into reactor with the speed of 100mL/min reaction mass is stirred; In the gas circulation pipeline, add the alkali lye absorption plant, concrete operations are: the mist that produces in the anaerobic digestion process (mainly comprises methane and CO
2) before looping back reactor, at first feed NaOH solution with CO
2GAS ABSORPTION, NaOH solution quality percent concentration is set in 5%, through the reactor that refluxes back again of the gaseous mixture after the NaOH solution absorption reaction mass is stirred;
4, when the pH that utilizes pH meter to monitor NaOH solution is lower than pH10, the mass percent concentration that utilizes new preparation is 5% NaOH solution exchange absorption alkali lye; The mixed air that another part does not have to reflux directly gets into the aerogenesis metering device.
After this process stabilizing moves 30 days, detected COD, TS, methane production, bicarbonate alkalinity and VFA concentration respectively, assay method is with embodiment 1.COD adopts standard potassium dichromate method to measure; Bicarbonate alkalinity adopts titration measuring; Organic acid composition lactic acid, formic acid, acetate, propionic acid and butyric acid adopt high performance liquid chromatography (2010A) to measure in the hydrolysis acidification product, and assay method is with embodiment 1; Gas volume is through the drainage metering, and metering method is with embodiment 1, and wherein methane content is detected by the gas-chromatography that packed column TDX102 is housed (GC-14B), and detection method is with embodiment 1.COD and TS clearance subtract discharging COD and the TS concentration concentration divided by charging COD and TS by charging COD and TS concentration respectively.Testing result shows: the clearance of COD is 66%, and the TS clearance is 63%, and methane production is 2.0L (Ld)
-1, bicarbonate alkalinity is 4.5g/L, and the VFA concentration in the out-feed liquid is 4.5g/L, and pH is 7.8.
Embodiment 3:
1, rubbish from cooking at first is broken into slurries, and recording total solid (TS) quality percentage composition is 20%, and the mass percent that volatile solid component (VS) accounts for TS is 95%; The pH of charging rubbish from cooking is 3; During charging rubbish from cooking is diluted with running water, the rubbish from cooking TS after the dilution is 8.5%, and charging COD concentration is set at 114g/L; Hydraulic detention time is 13.3 days, and the charging COD load of rubbish from cooking is 8.4g (Ld)
-1
2, the single-phase anaerobic digestion of rubbish from cooking is carried out in dischargeable capacity is the glass reactor of 2L, and reactor illustrates shown in accompanying drawing.Reactor is made up of lower elongate part and top three phase separator.The lower elongate section diameter is 60mm, high 400mm; Top spherical part diameter is 150mm.The single-phase anaerobic digestion process of rubbish from cooking moves with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes; 22.5 hours reaction time; Precipitate 1 hour, discharging 15 minutes, the single-phase anaerobic digestion of rubbish from cooking is reflected in the greenhouse in 35 ℃ to be carried out;
3, rubbish from cooking is pumped into reactor by reactor lower part after, open gas circulator, a part of gas that produces in the rubbish from cooking anaerobic digestion process is passed back into reactor with the speed of 100mL/min reaction mass is stirred; In the gas circulation pipeline, add the alkali lye absorption plant, concrete operations are: the mist that produces in the anaerobic digestion process (mainly comprises methane and CO
2) before looping back reactor, at first feed NaOH solution with CO
2GAS ABSORPTION, NaOH solution quality percent concentration is set in 5%, through the reactor that refluxes back again of the gaseous mixture after the NaOH solution absorption reaction mass is stirred;
4, when the pH that utilizes pH meter to monitor NaOH solution is lower than pH10, the mass percent concentration that utilizes new preparation is 5% NaOH solution exchange absorption alkali lye; The mixed air that another part does not have to reflux directly gets into the aerogenesis metering device.
After this process stabilizing moves 30 days, detected COD, TS, methane production, bicarbonate alkalinity and VFA concentration respectively, detection method is with embodiment 1.COD adopts standard potassium dichromate method to measure; Bicarbonate alkalinity adopts titration measuring; Organic acid composition lactic acid, formic acid, acetate, propionic acid and butyric acid adopt high performance liquid chromatography (2010A) to measure in the hydrolysis acidification product, and assay method is with embodiment 1; Gas volume is through the drainage metering, and metering method is with embodiment 1, and wherein methane content is detected by the gas-chromatography that packed column TDX102 is housed (GC 14B), and detection method is with embodiment 1.COD and TS clearance subtract discharging COD and the TS concentration concentration divided by charging COD and TS by charging COD and TS concentration respectively.Testing result shows: the clearance of COD is 66%, and the TS clearance is 69%, and methane production is 2.5L (Ld)
-1, bicarbonate alkalinity is 3.8g/L, and the VFA concentration in the out-feed liquid is 4.7g/L, and pH is 7.7.
Comparative Examples 1:
Do not using when of the present invention, aerogenesis refluxes and stirs in the single-phase anaerobic digestion operating process of rubbish from cooking, but in the aerogenesis reflux course, does not add CO
2The alkali lye absorption plant.Rubbish from cooking at first is broken into slurries; Recording total solid (TS) is 20%, and the mass percent that volatile solid component (VS) accounts for TS is 95%, and the pH of charging rubbish from cooking is 3; Using running water to be diluted to mass percent concentration respectively rubbish from cooking during charging is 2.2% and 4.3%; Charging COD concentration is respectively 20g/L and 51g/L, and hydraulic detention time was respectively 6.7 days and 13.3 days, and the charging COD load of rubbish from cooking is respectively 2.8g (Ld)
-1And 4.3g (Ld)
-1The single-phase anaerobic digestion of rubbish from cooking is carried out in dischargeable capacity is the glass reactor of 2L, and reactor illustrates shown in accompanying drawing.Reactor is made up of lower elongate part and top three phase separator.The lower elongate section diameter is 60mm, high 400mm; Top spherical part diameter is 150mm.The single-phase anaerobic digestion process of rubbish from cooking moves with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes; 22.5 hours reaction time; Precipitate 1 hour, discharging 15 minutes, the single-phase anaerobic digestion of rubbish from cooking is reflected in the greenhouse in 35 ℃ to be carried out; After rubbish from cooking pumped into reactor by reactor lower part, open gas circulator, a part of gas that produces in the rubbish from cooking anaerobic digestion process is passed back into reactor with the speed of 100mL/min reaction mass is stirred.The mixed air that another part does not have to reflux directly gets into the aerogenesis metering device.
Under each COD load, the process stabilizing operation detected COD, TS, methane production, bicarbonate alkalinity and VFA concentration respectively after 30 days, and detection method is with embodiment 1.The COD clearance raises gradually and is stabilized in 50%.PH and VFA concentration are stabilized in 7.5 and 4～5g/L respectively.Methane production increases sharply in the early stage, then behind 10d, is stabilized in 1.5L (Ld)
-1In each charging, sodium acid carbonate is added in the rubbish from cooking, the bicarbonate alkalinity in the reactor remains near the 2g/L.CO
2Dividing potential drop is reduced to about 40% by average 50% gradually.When charging COD load is brought up to 5g (Ld)
-1The time. the pH in the reactor dropped to 6.8 at preceding 5 days by average 7.3 gradually, quickly fell to afterwards below 6, and VFA concentration rapidly increases to above 9g/L, and the COD clearance drops to below 20% gradually.After the COD rate of load condensate improved, the at first continual and steady 6d of methane production was reduced to 0.25L (Ld) afterwards rapidly
-1Below.Bicarbonate alkalinity in the reactor also descends CO gradually after the COD load improves
2Dividing potential drop continues to rise to 90%.Drop at 6.2 o'clock at pH, the dosage that increases sodium acid carbonate is 4g every day, but obviously the dosage of basicity is not enough, and the performance of reactor is not recovered, and the operation of anaerobic reactor is still failed because of acidifying.The dosage that continues the increase sodium acid carbonate can not stop the acidifying of reactor.
When using when of the present invention under the constant situation of other condition, at each COD load down, process stabilizing has detected COD, TS, methane production, bicarbonate alkalinity and VFA concentration respectively after moving 30 days, and detection method is with embodiment 1.The COD rate of load condensate is gradually by 2.8g (Ld)
-1Be increased to 5.1g (Ld)
-1, 6.2g (Ld)
-1, and 8.4g (Ld)
-1The time, technology can stable operation.Charging COD load can improve 8g (Ld)
-1More than.Although the pH of charging rubbish from cooking is very low, the pH in the reactor changes between 7-8.Along with the raising of COD rate of load condensate, VFA concentration rises to 3.6g/L by 2.7g/L gradually in the discharging, and 4.5g/L and 4.7g/L are 6.2g (Ld) at the COD load
-1, and 8.4g (Ld)
-1The time, the VFA change in concentration is little.Be 2.8g (Ld) at the COD load
-1The time, VFA concentration descends gradually, shows that microorganism in the reactor improves the utilization of VFA gradually.Along with the raising of COD rate of load condensate, bicarbonate alkalinity presents the back downward trend that raises earlier.The COD rate of load condensate is gradually by 2.8g (Ld)
-1Be increased to 5.1g (Ld)
-1, 6.2g (Ld)
-1, and 8.4g (Ld)
-1The time, the bicarbonate alkalinity in the reactor is respectively 3.2g/L, 5.2g/L, 4.5g/L, and 3.8g/L.
Bicarbonate alkalinity in reaction system mainly is by the pH in the system, CO
2Dividing potential drop and the decision of VFA concentration.When the COD rate of load condensate by 2.8g (Ld)
-1Bring up to 5.1g (Ld)
-1The time, bicarbonate alkalinity rises suddenly, mainly is to have produced more CO in the system because the raising of COD load makes
2, and CO
2Low CO in gas phase
2Be to exist in solution under the partial pressure conditions with bicarbonate alkalinity.When the COD load continues to bring up to 6.2g (Ld)
-1The time, bicarbonate alkalinity descends, and is owing to VFA concentration in the discharging rises gradually, has consumed a part of bicarbonate alkalinity.In the process of whole raising COD load, because the CO in the gaseous mixture
2Absorbed by alkali lye continuously, thereby the CO2 concentration in the gas phase is very low, is 2.8g (Ld) in the COD rate of load condensate
-1And 5.1g (Ld)
-1The time, CO2 concentration is merely 1%, is 6.2g (Ld) in the COD rate of load condensate
-1And 8.4g (Ld)
-1The time be increased to 10%.In improving the COD load process, VFA and bicarbonate alkalinity descend gradually, but COD clearance and the rising of methane production held stationary, up to being 8.4g (Ld) in the COD rate of load condensate
-1In time, keep stablizing.
Claims (4)
1. a kitchen refuse processing apparatus is characterized in that: be made up of single-phase anaerobic digestion reaction vessel, appendix, gas circulator, alkali lye absorption plant, aerogenesis metering device and vavuum pump; Said single-phase anaerobic digestion reaction vessel is made up of bottom hollow elongated portion and top three phase separator, in the said alkali lye absorption plant NaOH is housed, and said aerogenesis metering device is glass water column and the tank that has scale; Said gas circulator links to each other with said alkali lye absorption plant upper end with said single-phase anaerobic digestion reaction vessel lower end respectively through appendix; The upper end of said single-phase anaerobic digestion reaction vessel through appendix respectively with the lower end of said alkali lye absorption plant and the lower ends of said aerogenesis metering device; The upper end of said aerogenesis metering device links to each other with vavuum pump through appendix; The upper end of said unidirectional anaerobic digestion reaction vessel, alkali lye absorption plant and aerogenesis metering device is discharging place, and the lower end is charging place.
2. treating apparatus as claimed in claim 1 wherein, is equipped with mass concentration and is 5% NaOH in the said alkali lye absorption plant.
3. method of using claim 1 or 2 said kitchen refuse processing apparatus to handle rubbishes from cooking may further comprise the steps:
A, rubbish from cooking at first are broken into slurries, and recording total solid quality percentage composition is 20%, and it is 95% that volatile solid is formed the mass percent that accounts for total solid, and the pH of charging rubbish from cooking is 3.9;
B, the single-phase anaerobic digestion process of rubbish from cooking move with andnon-continuous operation manner, and the cycle of operation is 24h, and wherein feed time is 15 minutes, in 22.5 hours reaction time, precipitate 1 hour, discharging 15 minutes;
C, rubbish from cooking pumped into reactor by reactor lower part after; Open gas circulator; Reactor is gone in the gas backstreaming that produces in the rubbish from cooking anaerobic digestion process to be stirred reaction mass; In the gas circulation pipeline, add the alkali lye absorption plant, concrete operations are: the mist that produces in the anaerobic digestion process at first fed NaOH solution with CO before looping back reactor
2GAS ABSORPTION stirs reaction mass through the reactor that refluxes back again of the gaseous mixture after the NaOH solution absorption;
D, when the pH that utilizes pH meter to monitor NaOH solution is lower than pH10, utilize 5% NaOH solution exchange of new preparation to absorb alkali lye; The gas that does not have to reflux directly gets into the aerogenesis metering device.
4. method as claimed in claim 3, the gas that produces described in the wherein said step c passes back into reactor with the speed of 100mL/min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497011A (en) * | 2013-09-13 | 2014-01-08 | 杨新玉 | Recycling treatment method for desalinized and desalted kitchen waste |
| CN112279369A (en) * | 2020-09-24 | 2021-01-29 | 浙江大学 | Absorbing CO by alkali liquor2Device and method for reinforcing UASB process performance by backflow |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133575A (en) * | 2010-01-22 | 2011-07-27 | 北京化工大学 | Combined anaerobic pretreatment method for village-in-lake domestic sewage and organic waste |
| CN202039061U (en) * | 2011-05-07 | 2011-11-16 | 靳江海 | Vertical anaerobic fermentation device of high concentration organic waste |
| CN202052759U (en) * | 2011-04-08 | 2011-11-30 | 黄永鑫 | Continuous food waste treatment device |
-
2012
- 2012-08-02 CN CN2012102722709A patent/CN102806226A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133575A (en) * | 2010-01-22 | 2011-07-27 | 北京化工大学 | Combined anaerobic pretreatment method for village-in-lake domestic sewage and organic waste |
| CN202052759U (en) * | 2011-04-08 | 2011-11-30 | 黄永鑫 | Continuous food waste treatment device |
| CN202039061U (en) * | 2011-05-07 | 2011-11-16 | 靳江海 | Vertical anaerobic fermentation device of high concentration organic waste |
Non-Patent Citations (4)
| Title |
|---|
| 《万方平台--学位论文》 20041230 徐剑波 "两阶段ASBR处理厨余垃圾的实验研究及Na+对厌氧消化影响的研究"，徐剑波，万方平台--学位论文，第14-16页，2004年12月30日 正文第14页最后一段至第16页第1段及附图2-1 1-4 , * |
| 张波，张丽丽，徐剑波，蒯林萍，蔡伟民: "城市生活垃圾的厌氧消化处理现状和研究进展", 《中国沼气》 * |
| 徐剑波，张波，蔡伟民: "两阶段ASBR处理厨房垃圾的实验研究", 《环境科学研究》 * |
| 徐剑波: ""两阶段ASBR处理厨余垃圾的实验研究及Na+对厌氧消化影响的研究"，徐剑波，万方平台--学位论文，第14-16页，2004年12月30日", 《万方平台--学位论文》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497011A (en) * | 2013-09-13 | 2014-01-08 | 杨新玉 | Recycling treatment method for desalinized and desalted kitchen waste |
| CN112279369A (en) * | 2020-09-24 | 2021-01-29 | 浙江大学 | Absorbing CO by alkali liquor2Device and method for reinforcing UASB process performance by backflow |
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Application publication date: 20121205 |