CN106830591A - A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering - Google Patents
A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering Download PDFInfo
- Publication number
- CN106830591A CN106830591A CN201710116784.8A CN201710116784A CN106830591A CN 106830591 A CN106830591 A CN 106830591A CN 201710116784 A CN201710116784 A CN 201710116784A CN 106830591 A CN106830591 A CN 106830591A
- Authority
- CN
- China
- Prior art keywords
- biogas residue
- biological treatment
- reaction tank
- treatment reaction
- anaerobic fermentation
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to kitchen garbage processing technology, particularly a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, the moisture content of biogas residue is first adjusted in regulating reservoir, then biogas residue is continuously pumped into being inoculated with the biological treatment reaction tank of the biological treatment reaction system of complex microorganism, pump into composite nutrient simultaneously, and continuous aeration, under field conditions (factors), biological treatment 1.5 ~ 4 days；By completely reacted biogas residue by after concentration basin treatment, biogas residue sediment feeding filter press, supernatant is drained into filtrate collecting pit；Squeezing being carried out through filter press and producing filter cake and pressing filtering liquid, filtrate is drained into filtrate collecting pit and is flowed back, portion filtrate is back to biological treatment reaction system, remaining to drain into sewage treatment plant's treatment.The present invention carries out depth conditioning using the method for microorganism to biogas residue, and the biogas residue after conditioning solves that existing biogas residue dehydration energy is larger through filter press filter-press dehydration, and the more problem of dosing reduces the dehydration cost of biogas residue.
Description
Technical field
The invention belongs to kitchen garbage processing technology field, more particularly to a kind of anaerobic fermentation of kitchen waste biogas residue that improves takes off
The method of aqueous energy.
Background technology
Kitchen garbage, refers to the residual waste produced by people's daily life, is mainly derived from dining room, restaurant and family.
Anaerobic fermentation of kitchen waste technology has good development potentiality, and the technology is carried out efficiently kitchen garbage using anaerobe
Degraded, can not only be processed kitchen garbage, and organic matter therein can be changed into regenerative resource gas-natural pond
Gas, for heat production, generates electricity or as fuel.The application of anaerobic fermentation technology will produce substantial amounts of anaerobic fermentation residue-
Biogas residue.These residues contain large quantity of moisture, organic matter, N, P, K and trace element etc., at the same also containing certain pathogen,
The harmful substances such as mycotoxin, and stink is distributed, if can not reasonably process that huge pollution still can be brought to environment.It is right
Biogas residue is dehydrated, and reduces its moisture content, is biogas residue subsequent treatment and the premise for utilizing, such as burning, landfill, compost etc..
At present, the dehydration of biogas residue is general by after centrifugal dehydrator treatment, obtaining the dehydration natural pond that moisture content is 80% or so
Slag, sends into plate and frame filter press after then modifying agent is mixed with dehydration biogas residue and squeezes, and obtains desiccation filter cake.Patent
CN102950137B discloses a kind of cooperative processing method of kitchen garbage, main to include pretreatment, regulation slurrying, anaerobism hair
Ferment, biogas utilization and biogas residue process step, the technical matters are relative complex, also larger, " centrifugal dehydration in step s 5 of consuming energy
It is with modified squeezing process：By by the slurries after the anaerobic fermentation by after centrifugal dehydrator centrifugal dehydration, obtaining aqueous
Rate is 80% dewatered sludge；Sent into plate and frame filter press after the dewatered sludge is mixed with sludge modification agent and squeezed." plus
The organic matter of filter cake declines more after modifying agent.And the biologic treating technique of sludge dewatering is applied to, its is with low cost, is dehydrated mud
Cake moisture content is low, odorless, and mud cake organic matter, calorific value and nutrient are not reduced, is easy to follow-up recycling.Patent application
Number 201410119833.X discloses the new method that a kind of sludge bioleaching method quickly nurses one's health deep dehydration, number of patent application
201410306890.9 disclose a kind of technique that sludge dewatering is carried out using bioleaching reaction, and the two patents are disclosed
The method being dehydrated to sludge using biologic treating technique, the technology is mainly by inoculating compound bacterium agent in sludge, and
Specific nutritional agents is added, a period of time is reacted in specific bioreactor, by the effect of microorganism, the dehydration property of sludge
Be able to can be greatly improved, cachaza moisture content can be down to less than 60%.At present, biologic treating technique is not also de- in biogas residue
Application in terms of water.
The content of the invention
It is an object of the invention to provide a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, using micro- life
The method of thing carries out depth conditioning to biogas residue, and the biogas residue after conditioning is dehydrated through filter press filter-press dehydration with solving existing biogas residue
The energy consumption that method is present is larger, the more problem of dosing, reduces the dehydration cost of biogas residue.
In order to achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, wherein, described method comprises the following steps：
Step one：The moisture content of pending biogas residue is adjusted to 96 ~ 99%, the biogas residue after being diluted in biogas residue regulating reservoir；
Step 2：Biogas residue after the dilution of gained in the step one is continuously pumped into the biological treatment for being inoculated with complex microorganism
In the biological treatment reaction tank of reaction system, while to pumping into composite nutrient in the biological treatment reaction tank, and connected
Continuous aeration, under field conditions (factors), biological treatment 1.5 ~ 4 days；
Step 3：By biogas residue completely reacted in step 2 by after concentration basin treatment, biogas residue sediment sends into filter press, supernatant
It is drained into filtrate collecting pit；
Step 4：Filter cake and pressing filtering liquid are produced after biogas residue sediment in the step 3 is squeezed through filter press, by institute
The pressing filtering liquid stated is drained into filtrate collecting pit；
Step 5：The filtrate portion that the filtrate collecting pit is collected is back to the biological treatment reaction system, as inoculation
The pH value of the complex microorganism and the fresh biogas residue of regulation, the remaining filtrate drains into sewage treatment plant and is processed；
Step 6：Be continuously pumped into biological treatment reaction tank to the biological treatment reaction system moisture content for 96 ~ 99% it is new
Fresh biogas residue, while pumping into composite nutrient to the biological treatment reaction tank, and carries out continuous aeration；
Step 7：Circulating repetition above-mentioned steps one are to step 6.
Further, the addition of the relatively fresh biogas residue of the composite nutrient is 4 ~ 12g/L, and backflow amount of filtrate is fresh natural pond
The 50 ~ 150% of the quantity of slag, it is 3 ~ 6mg/L that dissolved oxygen concentration is controlled during aeration.
Further, the composition of the complex microorganism and relative to treatment biogas residue volume inoculum concentration it is as follows：Sulfur oxide
Thiobacillus 1 ~ 5%, Thiobacillus ferrooxidans 5 ~ 9%.
Further, the composite nutrient includes sulphur powder, five water sodium thiosulfate, Tween-20, ferrous sulfate heptahydrate, phosphorus
Sour hydrogen dipotassium, magnesium sulfate, fertile soil, trace element, vitamin.
Further, in the composite nutrient, sulphur powder content be 50 ~ 170g/kg, five water sodium thiosulfate contents be 60 ~
180g/kg, Tween-20 content are 5 ~ 20g/kg, ferrous sulfate heptahydrate content is 400 ~ 750g/kg, dipotassium hydrogen phosphate content is
20 ~ 100g/kg, fertile soil content are 40 ~ 90g/kg, micronutrient levels is 4 ~ 10g/kg, vitamin content is 10 ~ 40g/
kg。
Further, the slag feed pipe and residue outlet of the biological treatment reaction tank are located at the relative position of same level, with
Distance from bottom is the 70 ~ 80% of reaction tank total depth；Slag feed pipe is connected with mozzle, and mozzle passes to reaction tank bottom and water conservancy diversion
Pipe end is the 8 ~ 10% of pond depth with the distance of bottom of pond；Residue outlet is connected with the slag feed pipe of next stage biological treatment reaction tank；Each
Parallel in biological treatment reaction tank to be staggeredly provided with twice baffle plate, the length of per pass baffle plate is the 60 ~ 70% of pool wall, highly with pond depth
It is identical；Baffle plate spacing and baffle plate are 1/3rd of pool wall length with the distance of pool wall.
Further, the biological treatment reaction system is formed for 10 biological treatment reaction tank tandem compounds.
Further, it is provided with aeration head in the biological treatment reaction tank.
The present invention is relative to having the beneficial effect that produced by prior art：
1st, the present invention is flowed back using the supernatant and pressing filtering liquid of concentration basin instead of the biogas residue after treatment, has so both mitigated right
The reprocessing burden of waste liquid, reduces the backflow of biogas residue again after biogas residue treatment, specific as follows so as to improve treatment effeciency：
1) discharge of wastewater is reduced：The pH of supernatant and pressing filtering liquid is generally 2.0 ~ 3.5, and this is very big burden for sewage disposal；
2) pH of biogas residue is adjusted：The low pH of supernatant and pressing filtering liquid can reduce the initial pH of biogas residue, shorten reaction time；
3）Increase the density of microorganism：There is sufficient concentrations of microorganism in supernatant and pressing filtering liquid, be fully available for being inoculated with and mend
Fill objective microbe quantity in former biogas residue.
2nd, the present invention utilizes composite nutrient, except adding the general nutrition for growth of microorganism in the composite nutrient
Outside material, fertile soil and surface active agent tween -20 are also added into, fertile soil therein can slowly discharge K+、Ca2+、Na+、
Mg2+Plasma, for growth of microorganism provides long-term nutrition supply, Tween-20 can increase the dissolubility of sulphur powder, improve treatment effect
Rate.
By the improvement of the improvement of above-mentioned technique, the ratio optimization of complex microorganism and nutrition agent prescription, through 1.5 ~ 4 days
Reaction treatment, can be obviously improved the dewatering of biogas residue, and biogas residue filter cake moisture content after press filtration is down to less than 60% after treatment.
Brief description of the drawings
Fig. 1 is process chart of the invention；
Fig. 2 is the schematic top plan view of the two-stage biological treatment reaction tank of biological treatment reaction system in the present invention；
Fig. 3 is the structural representation of the two-stage biological treatment reaction tank of biological treatment reaction system in the present invention.
In figure：1- biogas residues regulating reservoir, 2- biological treatments reaction system, 3- concentration basins, 4- filter presses, 5- filter cakes, 6- waste liquids
Collecting pit, 7- sewage treatment plants, 8- first order biological treatments reaction tank, 9- second level biological treatment reaction tank, 10- first are grading
Slag pipe, 11- first order residue outlet, 12- second level slag feed pipe, 13- second level residue outlet, 14- baffle plates, 15- mozzles, 16- expose
Gas head.
Specific embodiment
Come the further details of explanation present invention, but protection scope of the present invention with specific embodiment below in conjunction with the accompanying drawings
It is not limited to this.
Embodiment 1
The biogas residue of the present embodiment takes from certain anaerobic fermentation of kitchen waste treatment plant, and its moisture content is 96.43%, and the content of organic matter is
50.97%。
As shown in figure 1, a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, the method including walking as follows
Suddenly：
Step one：The moisture content of pending biogas residue is adjusted to 98%, the biogas residue after being diluted in biogas residue regulating reservoir 1；
Step 2：The biological treatment for being inoculated with complex microorganism will be pumped into biogas residue after the dilution of gained in the step one
In the biological treatment reaction tank of reaction system 2, inoculum concentration of each strain relative to pending biogas residue volume in complex microorganism：
Thiobacillus thioxidans 2%, Thiobacillus ferrooxidans 8%.Simultaneously to pumping into composite nutrient 6g/L in reaction tank, and continuously exposed
Gas, controls the dissolved oxygen of biogas residue for 4mg/L, under field conditions (factors) biological treatment 2.5 days；Wherein the composition of composite nutrient is such as
Under：Sulphur powder content is 110g/kg, five water sodium thiosulfate contents are 130g/kg, Tween-20 content is 10g/kg, seven water sulfuric acid
Ferrous content is 610g/kg, dipotassium hydrogen phosphate content is 33g/kg, fertile soil content is 70g/kg, trace element 7g/kg, dimension
Raw element 30g/kg；
Step 3：By biogas residue completely reacted in step 2 after concentration basin 3 is processed, biogas residue sediment is sent into filter press 4, will
Supernatant is drained into filtrate collecting pit 6；
Step 4：Biogas residue sediment after step 3 is processed is squeezed through filter press 4, filter cake 5, the moisture content of filter cake 5 is obtained
54.76% is down to, the content of organic matter is 48.36%；And the pressing filtering liquid of generation is drained into filtrate collecting pit 6；
Step 5：Filtrate portion in filtrate collecting pit 6 is back in biological treatment reaction system 2, as inoculation composite microbial
The pH value of thing and the fresh biogas residue of regulation, residual filtrate drains into sewage treatment plant 7 and is processed；
Step 6：To being continuously pumped into the fresh natural pond that moisture content is 98% in the biological treatment reaction tank of biological treatment reaction system 2
Slag, while pumping into composite nutrient and backflow filtrate to biological treatment reaction tank, and carries out continuous aeration, controls the dissolving of biogas residue
Oxygen is 4mg/L；Relative to the addition of fresh biogas residue, composite nutrient addition is 6g/L, and backflow amount of filtrate is fresh biogas residue
The 80% of amount；Biogas residue completes treatment reaction by outflow system after 10 grades of biological treatment reaction tank treatment；
Step 7：Circulating repetition above-mentioned steps one are to step 6.
The filter cake for obtaining can be with recycling, for afforestation, burning electricity generation or as construction material.
As shown in Fig. 2 the biological treatment reaction system for using in the present embodiment is 10 biological treatment reaction tank strings
Connection is combined, and Fig. 2 is two schematic top plan views of the biological treatment reaction tank of series connection in the biological treatment reaction system, figure
The overlooking the structure diagrams of the 3 biological treatment reaction tanks connected for two in the biological treatment reaction system, including the first order
Biological treatment reaction tank 8 and the second level biological treatment reaction tank 9 of series connection with it, the first of first order biological treatment reaction tank 8
Level slag feed pipe 10 and first order residue outlet 11 are on the diagonal position of same level；First order slag feed pipe 10 and reaction tank bottom
The distance in portion is the 80% of reaction tank total depth, and first order slag feed pipe 10 is connected with mozzle 15, and mozzle 15 passes to first order life
The bottom and the end of mozzle 15 of thing treatment reaction tank 8 and the distance of bottom of pond are the 10% of pond depth；It is parallel in each reaction tank to interlock
Be provided with twice baffle plate 14, the length of per pass baffle plate is the 70% of pool wall width, highly deeply identical with pond；Baffle plate spacing and baffle plate
1/3rd of pool wall length are with the distance of pool wall；The second level slag feed pipe 12 of second level biological treatment reaction tank 9 and
Two grades of residue outlets 13 are also on the diagonal position of same level, the first order residue outlet of first order biological treatment reaction tank 8
11 are connected with the second level slag feed pipe 12 of second level biological treatment reaction tank 9.
Aeration head 16 is equipped with the bottom of each biological treatment reaction tank, by slag feed pipe and mozzle 15 by biogas residue pump
Enter the bottom of biological treatment reaction tank, effect of the biogas residue by baffle plate in the presence of plug-flow is S-type to residue outlet flowing, such as schemes
In 2 shown in the flow direction of arrow, at the same time it is aerated, is then entered next stage biological treatment by the slag feed pipe of next stage again
Reaction tank；Biological treatment reaction system is finally flowed out, the biological treatment process of biogas residue is completed.
Embodiment 2
Biogas residue takes from anaerobic fermentation of kitchen waste treatment plant of Zhengzhou City, and its moisture content is 95.68%, its content of organic matter
50.97%.A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, the method comprises the following steps：
Step one：The moisture content of pending biogas residue is adjusted to 96%, the biogas residue after being diluted in regulating reservoir.
Step 2：Biogas residue is pumped into that to be inoculated with having for complex microorganism compound micro- after the dilution of gained in the step one
In the biological treatment reaction tank of biological biological treatment reaction system 2, each strain in complex microorganism is relative to pending natural pond
The inoculum concentration of slag volume：Thiobacillus thioxidans 3.33%, Thiobacillus ferrooxidans 6.67%；Composite nutrient 7g/L is pumped into simultaneously,
And continuous aeration is carried out, the dissolved oxygen of biogas residue is controlled for 4.5mg/L, under field conditions (factors) biological treatment 3 days；Wherein compound nutritional
The composition of agent is as follows：Sulphur powder content is 125g/kg, five water sodium thiosulfate contents are 110g/kg, Tween-20 content is 8g/
Kg, ferrous sulfate heptahydrate content are 650g/kg, dipotassium hydrogen phosphate content is 36g/kg, fertile soil content is 40g/kg, micro unit
Plain 6g/kg, vitamin 25g/kg.
Step 3：By biogas residue completely reacted in step 2 by after concentration basin treatment, biogas residue sediment sends into filter press, on
Clear liquid is drained into filtrate collecting pit.
Step 4：Biogas residue sediment after step 3 is processed is squeezed through filter press, filter cake, filter cake moisture content is obtained
57.39% is down to, the content of organic matter is 46.67%.And the pressing filtering liquid of generation is drained into filtrate collecting pit；
Step 5：Filtrate portion in filtrate collecting pit 6 is back in biogas residue biological treatment reaction system 2, compound as inoculation
Microorganism and the pH value of the fresh biogas residue of regulation, residual filtrate drain into sewage treatment plant and are processed；
Step 6：To being continuously pumped into the fresh natural pond that moisture content is 97% in the biological treatment reaction tank of biological treatment reaction system 2
Slag, while pumping into composite nutrient and backflow filtrate to reaction tank, and carries out continuous aeration, and the dissolved oxygen for controlling biogas residue is
4.5mg/L；Relative to the addition of fresh biogas residue, composite nutrient addition is 7g/L, and backflow amount of filtrate is fresh biogas residue amount
90%；Biogas residue completes treatment reaction by outflow system after 10 grades of biological treatment reaction tanks；
Step 7：Circulating repetition above-mentioned steps one are to step 6.
The filter cake for obtaining can be with recycling, for afforestation, burning electricity generation or as construction material.
The structure and working principle of biological treatment reaction system is with embodiment 1.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solution of the present invention, art is general
The equivalent of logical technical staff or other modifications made according to prior art, as long as not beyond technical solution of the present invention
Thinking and scope, should be included within interest field of the presently claimed invention.
Claims (8)
1. a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering, it is characterised in that the method includes following step
Suddenly：
Step one：The moisture content of pending biogas residue is adjusted to 96 ~ 99% in regulating reservoir, biogas residue after being diluted；
Step 2：Biogas residue after the dilution of gained in the step one is continuously pumped into the biological treatment for being inoculated with complex microorganism
In the biological treatment reaction tank of reaction system, while to pumping into composite nutrient in the reaction tank, and continuous aeration is carried out,
Under natural conditions, biological treatment 1.5 ~ 4 days；
Step 3：By biogas residue completely reacted in step 2 by after concentration basin treatment, biogas residue sediment sends into filter press, supernatant
It is drained into filtrate collecting pit；
Step 4：Biogas residue sediment in the step 3 is squeezed through filter press, filter cake and pressing filtering liquid is produced, will be described
Pressing filtering liquid is drained into filtrate collecting pit；
Step 5：The filtrate portion that the filtrate collecting pit is collected is back to the biological treatment reaction system, as inoculation
The pH value of the complex microorganism and the fresh biogas residue of regulation, the remaining part filtrate drains into sewage treatment plant and is processed；
Step 6：Be continuously pumped into biological treatment reaction tank to the biological treatment reaction system moisture content for 96 ~ 99% it is new
Fresh biogas residue, while pumping into composite nutrient to the reaction tank, and carries out continuous aeration；
Step 7：Circulating repetition above-mentioned steps one are to step 6.
2. a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1, its feature exists
In the addition of, the relatively fresh biogas residue of the composite nutrient be 4 ~ 12g/L, backflow amount of filtrate be fresh biogas residue amount 50 ~
150%, it is 3 ~ 6mg/L that dissolved oxygen concentration is controlled during aeration.
3. a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1, its feature exists
In, the composition of the complex microorganism and as follows relative to the inoculum concentration for the treatment of biogas residue volume：Thiobacillus thioxidans 1 ~ 5%, oxygen
Change ferrous Thiobacillus 5 ~ 9%.
4. a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1, its feature exists
In the composite nutrient includes sulphur powder, five water sodium thiosulfate, Tween-20, ferrous sulfate heptahydrate, dipotassium hydrogen phosphate, sulfuric acid
Magnesium, fertile soil, trace element, vitamin.
5. a kind of method of the raising anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1 or 4, its feature
It is that in the composite nutrient, sulphur powder content is 50 ~ 170g/kg, five water sodium thiosulfate contents are 60 ~ 180g/kg, tell
Warm -20 contents are 5 ~ 20g/kg, ferrous sulfate heptahydrate content is 400 ~ 750g/kg, dipotassium hydrogen phosphate content is 20 ~ 100g/kg,
Fertile soil content is 40 ~ 90g/kg, micronutrient levels is 4 ~ 10g/kg, vitamin content is 10 ~ 40g/kg.
6. a kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1, its feature exists
In the slag feed pipe and residue outlet of the biological treatment reaction tank are located at the relative position of same level, are made a living with distance from bottom
The 70 ~ 80% of thing treatment reaction tank total depth；Slag feed pipe is connected with mozzle, mozzle pass to biological treatment reaction tank bottom and
Water conservancy diversion pipe end is the 8 ~ 10% of pond depth with the distance of bottom of pond；Residue outlet is connected with the slag feed pipe of next stage biological treatment reaction tank；
Parallel in each biological treatment reaction tank to be staggeredly provided with twice baffle plate, the length of per pass baffle plate is the 60 ~ 70% of pool wall, highly with
Chi Shen is identical；Baffle plate spacing and baffle plate are 1/3rd of pool wall length with the distance of pool wall.
7. a kind of method of the raising anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1 or 6, its feature
It is that the biological treatment reaction system is formed for 10 biological treatment reaction tank tandem compounds.
8. a kind of method of the raising anaerobic fermentation of kitchen waste biogas residue dewatering according to claim 1 or 6, its feature
It is to be provided with aeration head in the biological treatment reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116784.8A CN106830591A (en) | 2017-03-01 | 2017-03-01 | A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116784.8A CN106830591A (en) | 2017-03-01 | 2017-03-01 | A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106830591A true CN106830591A (en) | 2017-06-13 |
Family
ID=59137639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710116784.8A Pending CN106830591A (en) | 2017-03-01 | 2017-03-01 | A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106830591A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285460A (en) * | 2017-08-21 | 2017-10-24 | 梧州学院 | Household domestic sewage treating method and its system based on PLC and SBR |
| CN109440965A (en) * | 2018-12-11 | 2019-03-08 | 鞍山千华环保有限公司 | Utilize the method and production line of kitchen castoff production natural gas and assembled wallboard |
| CN110092558A (en) * | 2019-05-23 | 2019-08-06 | 南京万德斯环保科技股份有限公司 | A kind of bioremediation improving kitchen garbage anaerobism biogas residue dehydration property |
| CN113716795A (en) * | 2021-08-13 | 2021-11-30 | 深圳市利赛环保科技有限公司 | Kitchen waste biogas slurry dehydration process |
| CN115043472A (en) * | 2022-06-28 | 2022-09-13 | 南京贝克特环保科技有限公司 | Deep deslagging method for kitchen biogas slurry |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817252A (en) * | 2015-04-16 | 2015-08-05 | 郑州大学 | Method for improving dewatering performance of municipal sludge at low temperatures |
| CN106145586A (en) * | 2016-08-02 | 2016-11-23 | 长兴瑷晟环保科技有限公司 | A kind of biological modified method of deeply dehydrating sludge |
-
2017
- 2017-03-01 CN CN201710116784.8A patent/CN106830591A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817252A (en) * | 2015-04-16 | 2015-08-05 | 郑州大学 | Method for improving dewatering performance of municipal sludge at low temperatures |
| CN106145586A (en) * | 2016-08-02 | 2016-11-23 | 长兴瑷晟环保科技有限公司 | A kind of biological modified method of deeply dehydrating sludge |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285460A (en) * | 2017-08-21 | 2017-10-24 | 梧州学院 | Household domestic sewage treating method and its system based on PLC and SBR |
| CN109440965A (en) * | 2018-12-11 | 2019-03-08 | 鞍山千华环保有限公司 | Utilize the method and production line of kitchen castoff production natural gas and assembled wallboard |
| CN110092558A (en) * | 2019-05-23 | 2019-08-06 | 南京万德斯环保科技股份有限公司 | A kind of bioremediation improving kitchen garbage anaerobism biogas residue dehydration property |
| CN113716795A (en) * | 2021-08-13 | 2021-11-30 | 深圳市利赛环保科技有限公司 | Kitchen waste biogas slurry dehydration process |
| CN115043472A (en) * | 2022-06-28 | 2022-09-13 | 南京贝克特环保科技有限公司 | Deep deslagging method for kitchen biogas slurry |
| CN115043472B (en) * | 2022-06-28 | 2023-11-10 | 南京贝克特环保科技有限公司 | Kitchen biogas slurry deep deslagging method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106830591A (en) | A kind of method for improving anaerobic fermentation of kitchen waste biogas residue dewatering | |
| CN103496823A (en) | Method for comprehensive treatment on domestic sewage and organic garbage and equipment thereof | |
| CN106219871A (en) | A kind of livestock breeding wastewater processing method | |
| CN207175585U (en) | Compound biochemical reactor | |
| CN102311922B (en) | Method for high-efficiency culture of microalgae | |
| CN102965278A (en) | Efficient two-phase anaerobic fermentation device | |
| CN107529552A (en) | Electromagnetism strengthens the method and device of wood fibre liquefaction jet cyclone multistage energy | |
| CN104445851A (en) | Method for recycling sludge processing waste liquid to promote sludge harmless treatment | |
| CN103771655B (en) | A kind for the treatment of process of cellulose alcoholic fermentation waste liquid | |
| CN106145339A (en) | A kind of mud takes off the methanogenic device of filtrate and technique | |
| CN101439914A (en) | Neutralization-free furfural wastewater biochemical treatment process | |
| CN108128999A (en) | A kind of Taihu Lake cyanobacteria and sewage plant sludge and kitchen garbage cooperative processing method | |
| CN203820588U (en) | Bio-contact oxidation equipment for treating breeding wastewater | |
| CN205953809U (en) | Mud takes off device that filtrating produced methane | |
| CN202945237U (en) | Efficient two-phase anaerobic fermentation device | |
| CN105271603A (en) | High-efficiency biological hydrogen and methane production device | |
| CN204779220U (en) | Sewage treatment device based on activated sludge process | |
| CN208684682U (en) | A kind of total system of landfill leachate tail water | |
| CN104178544B (en) | One primary yeast and bacteria flora utilize the method for activated sludge synthesis poly-β-hybroxybutyric acid | |
| CN106746407B (en) | Process for improving dehydration performance of excess sludge | |
| CN102583902B (en) | Treatment system for comprehensive utilization of rural sewage | |
| CN204779028U (en) | Two -stage and oxygen sewage treatment plant | |
| CN104944575A (en) | Biological treatment method of acidic sulfate wastewater containing Fe<3+> and Cu<2+> | |
| CN201433210Y (en) | Methane lifting type intensified anaerobic reactor | |
| CN202322576U (en) | Sludge minimizing system with high efficiency and low consumption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |