CN101172746A - Method and equipment for combined fermentation treatment of food garbage and sewage sludge - Google Patents
Method and equipment for combined fermentation treatment of food garbage and sewage sludge Download PDFInfo
- Publication number
- CN101172746A CN101172746A CNA200710133217XA CN200710133217A CN101172746A CN 101172746 A CN101172746 A CN 101172746A CN A200710133217X A CNA200710133217X A CN A200710133217XA CN 200710133217 A CN200710133217 A CN 200710133217A CN 101172746 A CN101172746 A CN 101172746A
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- tank body
- fermentation tank
- domestic refuse
- mud
- fermentation
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- 238000000855 fermentation Methods 0.000 title claims abstract description 54
- 230000004151 fermentation Effects 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000010813 municipal solid waste Substances 0.000 title claims description 19
- 239000010801 sewage sludge Substances 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 15
- 239000008236 heating water Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 6
- 239000010802 sludge Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000002699 waste material Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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- 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
Abstract
The invention discloses a combined fermentation processing method for home scrap and sludge and the device thereof. The invention greatly improves the anaerobic fermentation method, and has the advantages of simple device structure, convenient manufacturing, high fermentation processing speed and low cost.
Description
Technical field
The present invention relates to a kind of waste disposal method and equipment, especially a kind of method and device that is used for domestic refuse and sludge treatment, specifically a kind of domestic refuse and mud combined ferment treatment process and device thereof.
Background technology
Domestic refuse and mud are the solid waste problems of being badly in need of solution in the urbanization process, technology at present commonly used has burning method, Unareobic fermentation, composting process and other etc., wherein but Unareobic fermentation becomes an incentive technological development direction owing to have advantages such as can producing biogas energy, waste liquid, waste residue recycling.
Existing domestic refuse fermentation and sludge digestion fermentation are not got in touch, are carried out separately, a problem can appear after domestic refuse anaerobic fermentative processing amount increased, be exactly because the winding degree between the rubbish is higher, give in, rubbish stirring operation in the large-scale fermentation unit brings difficulty, so just limited the high-level efficiency of anaerobically fermenting, carried out fast.From the sludge fermentation angle, mud self fermentation exist this organic content not high, need the mud after the modified and fermentation of water distribution slurrying still to need situation or problems such as processing, therefore the fermenting speed that how to utilize the characteristics of domestic refuse and mud itself to quicken them is to quicken refuse treatment, the task of top priority of minimizing environmental pollution.
Summary of the invention
One of purpose of the present invention is that the efficient that exists in the fermentative processing process respectively at existing domestic refuse and mud is low, and the problem that operation easier is big is invented a kind of domestic refuse and mud combined ferment treatment process.
Another object of the present invention provides a kind of combined ferment treatment unit that matches with aforesaid method.
One of technical scheme of the present invention is:
A kind of domestic refuse and mud combined ferment treatment process is characterized in that:
At first domestic refuse is pulverized, made its maximum length be not more than 200 millimeters, simultaneously mud is processed into size less than 100 * 100 * 20 millimeters block;
Secondly, the above-mentioned mud that processes and domestic refuse are packed in the fermentor tank in 1: 8～20 ratio;
The 3rd, the pH value of regulating in the fermentor tank is not less than 7.5, make tank body under sealed state, carry out anaerobically fermenting, the biogas that fermentation is produced is discharged from the biogas pipe at fermentor tank top, open the agitator that is installed in the fermentor tank on fermenting process intermittence ground, be 25～30 days pitch time, and a jar interior leavening temperature is controlled at more than 35 ℃;
The 4th, the biogas output in the monitoring biogas pipe, the CH in discharging biogas
4Content was then represented fermentation ends less than 35% o'clock, and the rubbish that can open after discharge port will ferment this moment carries out landfill disposal.
Two of technical scheme of the present invention is:
A kind of domestic refuse and mud combined ferment treatment unit, comprise cylindrical fermentation tank body 1, it is characterized in that being equipped with feed-pipe 2 and biogas vent pipe 3 at the top of cylindrical fermentation tank body 1, on the tank skin of its underpart, be provided with discharge port 4, inner bottom part angle mount at fermentation tank body 1 has barrier 5, the lowest part of barrier 5 is mutually concordant with the bottom of discharge port 4, between the bottom surface of barrier 5 and fermentation tank body 1, be formed with fermented liquid pond for recovering 6, the fermented liquid pond for recovering links to each other with the input terminus of spray liquid recycle pump 8 and the input terminus of fermented liquid efflux pump 10 respectively by connecting tube 7, and the exit end of spray liquid recycle pump 8 links to each other with the fermented liquid shower nozzle 9 that is installed in fermentation tank body 1 top by pipe connecting; The outside at fermentation tank body 1 is equipped with heating water jacket 11, in heating water jacket 11 the outside thermal insulation layer 12 is installed; In fermentation tank body 1, agitator 13 is installed also.
The length-to-diameter ratio of described fermentation tank body 1 is 3～4: 1, and its diameter is between 1～8 meter.
Described heating water jacket's 11 height be not less than the fermentation tank body 1 in the rubbish loading height 90%.
Opening diameter on the described barrier 5 or groove width are not more than 20 millimeters, and its mounted angle is 15～30 degree.
13 2 one group in described agitator also is arranged symmetrically on the fermentation tank body 1, and each is organized and is separated by between the agitator 13 more than 2 meters, and described agitator 13 is spiral continuous impeller agitator.
Beneficial effect of the present invention:
The present invention carries out the blending fermentation by domestic refuse and pollution are united two into one, and has given full play to the effect of having complementary advantages, and has overcome problems such as having efficient is low, easy winding in the independent zymotechnique.
The present invention is by carrying out the method that blending is fermented with mud and rubbish in fermentation cabin, made full use of mud sliding preferably, be equivalent to the lubricant that adds between the rubbish, improved the agitation condition of rubbish greatly, meanwhile mud also can be used as the anaerobion inoculum, quickens anaerobic process.
In the device of the present invention, with mud mixing on a small quantity than mode and domestic refuse co-fermentation, the residuum after the fermentation can with the common landfill disposal of rubbish fermentation residuum, also search out a new approach for the processing of mud.
It is simple that the present invention has method, and device structure is simple, and be easy to make and control, and can produce a large amount of recyclable biogas, be a kind of waste disposal method of learning from other's strong points to offset one's weaknesses, it is little to have floor space simultaneously, the advantage that processing speed is fast.
The present invention adopts the reaction fermentor tank body structure of vertical stratification, has reduced floor space.
The opening for feed of fermentor tank of the present invention adopts two feed conveyor belt charging domestic refuse and mud simultaneously at the top.Rubbish need be made the prime break process, forms the object be not more than the 200mm diameter, and mud is cut into maximal side less than 100mm, the thickness block object less than 20mm, presses mud/rubbish mass ratio 1: 8-1: between 20, and mixed material feeding.
The fermentor tank of this courage is a service intermittent, feed intake saturated after, regulate pH to 7.5 above after, anaerobically fermenting is carried out in the tank body sealing, and property turn on agitator and circulation fluid spray at interval simultaneously, utilize simultaneously to feed 50-60 ℃ of hot water in water jacket, leavening temperature is at 35 ℃ in the holding tube.The biogas that produces in the fermenting process is discharged by the biogas pipe at top.
The present invention arranges some groups of agitators in the lateral vertical direction of fermentor tank, and two agitators of circumference positioned opposite form one group of agitator on each height location, 2 meters of every group of agitator vertical spacings, and agitator is spiral continuous impeller, external diameter is 0.8 meter.
Fermentor tank of the present invention is the steel construction main body, and water jacket samdwich is laid in the outside, and the interlayer width is 100mm, fills out more than 90% of rubbish thickness in should wrapping up, and lays thermal insulation layer in the water jacket outside and the outside, non-water jacket district of fermentor tank.
The discharge port of Ben Faken links to each other with inner rubbish mud mixture barrier, and the opening diameter of barrier or groove width are less than 20mm, and aperture opening ratio is greater than 30%, and barrier is in tilted layout to discharge port, and the angle of inclination is between the 15-30 degree.Both guarantee the smooth and easy of discharging, guaranteed the recovery and the discharging of fermented liquid again.
Description of drawings
Fig. 1 is the structural representation of combined ferment treatment unit of the present invention
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
A kind of domestic refuse and mud combined ferment treatment process, its step is as follows:
At first domestic refuse is pulverized, made its maximum length be not more than 200 millimeters, simultaneously mud is processed into size less than 100 * 100 * 20 millimeters block;
Secondly, with the above-mentioned domestic refuse that processes and mud by corresponding garbage feeding transport tape and sewage sludge feed transport tape in mud: the ratio of domestic refuse=1: 8～20 is sent in the fermentor tank of packing into;
The 3rd, the pH value of regulating in the fermentor tank is not less than 7.5, make tank body under sealed state, carry out anaerobically fermenting, the biogas that fermentation is produced is discharged from the biogas pipe at fermentor tank top, open the agitator that is installed in the fermentor tank on fermenting process intermittence ground, be 25～30 days pitch time, and be that leavening temperature remained on more than 35 ℃ in the method for 50～60 ℃ hot water made jar by add temperature in the heating water jacket;
The 4th, the biogas output in the monitoring biogas pipe, the CH in discharging biogas
4Content was then represented fermentation ends less than 35% o'clock, and the rubbish that can open after discharge port will ferment this moment carries out landfill disposal.
As shown in Figure 1.
A kind of domestic refuse and mud combined ferment treatment unit, comprise cylindrical fermentation tank body 1, the diameter of this fermentation tank body 1 is with 1～8 meter, length-to-diameter ratio is with 3～4: 1 is advisable, feed-pipe 2 and biogas vent pipe 3 are installed at the top of cylindrical fermentation tank body 1, the top of feed-pipe 2 is relative with the discharge end of sewage sludge feed transport tape 14 and garbage feeding transport tape 15, on the tank skin of its underpart, be provided with discharge port 4, inner bottom part angle mount at fermentation tank body 1 has barrier 5, opening diameter on the barrier 5 or groove width are not more than 20 millimeters, its mounted angle is 15～30 degree, the lowest part of barrier 5 is mutually concordant with the bottom of discharge port 4, between the bottom surface of barrier 5 and fermentation tank body 1, be formed with fermented liquid pond for recovering 6, the fermented liquid pond for recovering links to each other with the input terminus of spray liquid recycle pump 8 and the input terminus of fermented liquid efflux pump 10 respectively by connecting tube 7, and the exit end of spray liquid recycle pump 8 links to each other with the fermented liquid shower nozzle 9 that is installed in fermentation tank body 1 top by pipe connecting; The outside at fermentation tank body 1 is equipped with heating water jacket 11, heating water jacket 11 links to each other with the hot water source by advancing return water pipe 16, heating water jacket 11 height be not less than the fermentation tank body 1 in the rubbish loading height 90%, the thermal insulation layer 12 that rock wool or other material are done is installed in heating water jacket 11 the outside; In fermentation tank body 1, agitator 13 is installed also, agitator 13 is arranged symmetrically on the fermentation tank body 1 with two one group, each is organized and is separated by between the agitator 13 more than 2 meters, and described agitator 13 is spiral continuous impeller agitator, and the axis of agitator is perpendicular with the axis of fermentation tank body 1.
The part that the present invention does not relate to prior art that maybe can adopt same as the prior art is realized.
Claims (6)
1. domestic refuse and mud combined ferment treatment process is characterized in that:
At first domestic refuse is pulverized, made its maximum length be not more than 200 millimeters, simultaneously mud is processed into size less than 100 * 100 * 20 millimeters block;
Secondly, the above-mentioned mud that processes and domestic refuse are packed in the fermentor tank in 1: 8～20 ratio;
The 3rd, the pH value of regulating in the fermentor tank is not less than 7.5, make tank body under sealed state, carry out anaerobically fermenting, the biogas that fermentation is produced is discharged from the biogas pipe at fermentor tank top, open the agitator that is installed in the fermentor tank on fermenting process intermittence ground, be 25～30 days pitch time, and a jar interior leavening temperature is controlled at more than 35 ℃;
The 4th, the biogas output in the monitoring biogas pipe, the CH in discharging biogas
4Content was then represented fermentation ends less than 35% o'clock, and the rubbish that can open after discharge port will ferment this moment carries out landfill disposal.
2. described domestic refuse of claim 1 and mud combined ferment treatment unit, comprise cylindrical fermentation tank body (1), it is characterized in that being equipped with feed-pipe (2) and biogas vent pipe (3) at the top of cylindrical fermentation tank body (1), on the tank skin of its underpart, be provided with discharge port (4), inner bottom part angle mount at fermentation tank body (1) has barrier (5), the lowest part of barrier (5) is mutually concordant with the bottom of discharge port (4), between the bottom surface of barrier (5) and fermentation tank body (1), be formed with fermented liquid pond for recovering (6), the fermented liquid pond for recovering links to each other with the input terminus of spray liquid recycle pump (8) and the input terminus of fermented liquid efflux pump (10) respectively by connecting tube (7), and the exit end of spray liquid recycle pump (8) links to each other with the fermented liquid shower nozzle (9) that is installed in fermentation tank body (1) top by pipe connecting; The outside at fermentation tank body (1) is equipped with heating water jacket (11), in heating water jacket's (11) the outside thermal insulation layer (12) is installed; In fermentation tank body (1), agitator (13) is installed also.
3. domestic refuse according to claim 2 and mud combined ferment treatment unit, the length-to-diameter ratio that it is characterized in that described fermentation tank body (1) is 2～3: 1, its diameter is between 1～12 meter.
4. domestic refuse according to claim 2 and mud combined ferment treatment unit is characterized in that described heating water jacket's (11) height is not less than 90% of the middle rubbish loading height of fermentation tank body (1).
5. domestic refuse according to claim 2 and mud combined ferment treatment unit is characterized in that opening diameter or the groove width on the described barrier (5) is not more than 20 millimeters, and its mounted angle is 15～30 degree.
6. domestic refuse according to claim 2 and mud combined ferment treatment unit, it is characterized in that (13) two one group in described agitator and be arranged symmetrically in fermentation tank body (1), each is organized between the agitator (13) and is separated by more than 2 meters, and described agitator (13) is spiral continuous impeller agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710133217XA CN100509667C (en) | 2007-10-11 | 2007-10-11 | Method and equipment for combined fermentation treatment of food garbage and sewage sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710133217XA CN100509667C (en) | 2007-10-11 | 2007-10-11 | Method and equipment for combined fermentation treatment of food garbage and sewage sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101172746A true CN101172746A (en) | 2008-05-07 |
| CN100509667C CN100509667C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200710133217XA Expired - Fee Related CN100509667C (en) | 2007-10-11 | 2007-10-11 | Method and equipment for combined fermentation treatment of food garbage and sewage sludge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786194A (en) * | 2011-05-17 | 2012-11-21 | 上海环保（集团）有限公司 | Method for treating sludge through aerobic fermentation at high temperature |
| CN105132468A (en) * | 2015-08-27 | 2015-12-09 | 常州大学 | Kitchen waste and sludge combined pretreatment method and device for methane production |
| CN105807008A (en) * | 2016-05-06 | 2016-07-27 | 北京市农林科学院 | Slot type or strip stack type fermentation odor detection device for organic fertilizer |
| CN107118952A (en) * | 2016-08-27 | 2017-09-01 | 农业部沼气科学研究所 | High concentration multi-element material mixing anaerobic reaction test device |
| CN107980548A (en) * | 2017-12-28 | 2018-05-04 | 杨建� | A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system and method |
-
2007
- 2007-10-11 CN CNB200710133217XA patent/CN100509667C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786194A (en) * | 2011-05-17 | 2012-11-21 | 上海环保（集团）有限公司 | Method for treating sludge through aerobic fermentation at high temperature |
| CN105132468A (en) * | 2015-08-27 | 2015-12-09 | 常州大学 | Kitchen waste and sludge combined pretreatment method and device for methane production |
| CN105807008A (en) * | 2016-05-06 | 2016-07-27 | 北京市农林科学院 | Slot type or strip stack type fermentation odor detection device for organic fertilizer |
| CN107118952A (en) * | 2016-08-27 | 2017-09-01 | 农业部沼气科学研究所 | High concentration multi-element material mixing anaerobic reaction test device |
| CN107980548A (en) * | 2017-12-28 | 2018-05-04 | 杨建� | A kind of domestic sludge anaerobic reaction cultivates organic nutrient soil system and method |
| CN107980548B (en) * | 2017-12-28 | 2023-01-17 | 杨建� | System and method for cultivating organic nutrient soil through domestic sludge anaerobic reaction |
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| Publication number | Publication date |
|---|---|
| CN100509667C (en) | 2009-07-08 |
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Granted publication date: 20090708 Termination date: 20091111 |