CN102173914B - Oxygen-enriched biological treatment method and system of solid liquid waste - Google Patents
Oxygen-enriched biological treatment method and system of solid liquid waste Download PDFInfo
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- CN102173914B CN102173914B CN2010106118009A CN201010611800A CN102173914B CN 102173914 B CN102173914 B CN 102173914B CN 2010106118009 A CN2010106118009 A CN 2010106118009A CN 201010611800 A CN201010611800 A CN 201010611800A CN 102173914 B CN102173914 B CN 102173914B
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention relates to an oxygen-enriched biological treatment method and an oxygen-enriched biological treatment system of solid liquid waste. The method comprises the following steps of: 1, mixing the solid liquid waste, livestock and poultry culture excrement and a dry doped material according to the mass ratio of the solid liquid waste to the livestock and poultry culture excrement to the dry doped material of 8:1:1 to 7:1:2, and adding a mineral doped material in an amount which is 0.1 to 5 percent of the weight of the dry doped material; 2, performing groove type biological oxygen-enriched fermentation at the temperature of between 50 and 70 DEG C for 4 to 8 days, so that the water content of the materials is reduced to below 55 percent through fermentation; 3, performing windrow type biological fermentation for 4 to 8 days until the water content is reduced to below 30 percent; and 4, mixing and packaging the materials. By the method and the system, the fermentation process is in the oxygen-enriched state all the time, so the fermentation speed is increased, occupied area and operating cost are reduced, and the problem of secondary pollution of urban solid liquid waste is solved. The method and the system are applicable to treatment of the solid liquid waste such as sludge generated by urban sewage treatment plants, household waste, livestock and poultry culture excrement, crop cultivation and garden solid waste and the like.
Description
Technical field
The invention belongs to agriculture herding environmental technology field, be specifically related to a kind for the treatment of process and treatment system of solid liquid waste.
Background technology
Solid liquid waste treatment process commonly used has following several both at home and abroad at present:
1, sanitary landfill
Sanitary landfill is to select reasonably to stack place, a kind of mode of through the measure such as water leakage, earth backing, carrying out refuse treatment, and many countries are used widely in the world.The rubbish of China more than 80% is taked sanitary landfill, and its advantage is that less investment, processing costs are low, treatment capacity is large, easy and simple to handle.Its shortcoming is that floor space is large, and, along with being on the increase of human lives's rubbish, its floor space also can be on the increase thereupon, be located in remotely, haul distance is far away, the addressing difficulty, objectionable impurities seepage in solid waste may pollute underground water, can cause secondary pollution.
2, burn
Waste incineration is to utilize high temperature that the organism exhaustive oxidation in rubbish is decomposed, and in combustion processes, carbon and protium is converted into to CO
2and water, kill virus and bacterium under high temperature, a kind of mode of decrement and loss of weight effectively, the level of residue after burning only has 5% ~ 20% of former quantity of refuse, is suitable for the domestic refuse that combustible content is higher.Burning method is the technology of garbage disposal that each developed country of the world generally adopts.Plasma burning method and two-part gasification burning method are also popularized at home gradually at present.The waste incineration method takes up an area less, pollutes little, and heat energy can utilize, but investment and operation cost are high, burns the gas (as Dioxins) and the ashes that produce and may cause secondary pollution.Incinerating the method accounting at present in Urban Garbage Treatment in China is only 5%.
3, pyrolytic technique
The solid waste pyrolysis refers under anaerobic or anoxia condition, and the Flammable Solid Class 4.1 refuse is at high temperature decomposed, and finally becomes the chemical decomposition process of inflammable gas, oil, solid carbon.Method for pyrolysis is applicable to municipal solid wastes, mud, industrial waste as plastics, rubber etc.Combustible gas, wet goods that pyrolysis produces can be recycled, its energy recovery is good, and environmental pollution is little, reduces the refuse amount of destroying the secondary pollution caused by fire and needing landfill to dispose, this is that the advantage pyrolysis processing shortcoming of pyrolysis processing technology maximum is technical sophistication, invests huge.
4, microorganism treatment
Microorganism treatment is exactly to utilize self the metabolism of microorganism to carry out Decomposition to solid waste to make it innoxious.Breeding earthworm is a kind of method of microbiological treatment rubbish.Article one, the quantity of refuse that earthworm eats every day is equivalent to 2～3 times of its body weight, and the movement of eating after processing through earthworm is tasteless, harmless, the efficient multifunction biofertilizer of high-quality, can be used for flower culture and fruits and vegetables production.Organic matter rubbish after cockroach is decomposed does not only have corrupt smelly pollutent to generate in addition, but also is the organic fertilizer of high-quality.The microbial treatment method less investment, simple and easy to do, process thoroughly, do not form secondary pollution, in fact rebuild the process recycling of a material, both can eliminate environmental pollution, can turn waste into wealth again.This technique, still in developmental stage, mainly only has European and American developed countries to use.
5, compost
Composting process is put under given conditions solid is discarded exactly, and through nature or bacterial classification effect, the fermentation calefaction degradation of organic substances, realize innoxiously, produces the treatment process that fertilizer or deep processing are compoiste fertilizer after screening is processed.Composting process is divided into aerobic compost method and anaerobic composting method.At present the main object of compost treatment is domestic waste and sludge of sewage treatment plant, human and animal excreta, agricultural wastes, food-processing industry waste etc.
Summary of the invention
The purpose of this invention is to provide a kind of solid liquid waste oxygen-enriched biological treatment method and system, solve solid liquid waste and be not easy the technical problem of processing and processing cost is high, secondary pollution is serious.
For achieving the above object, the present invention adopts following technical scheme:
This solid liquid waste oxygen-enriched biological treatment method, step is as follows:
Step 4, be mixed with other nutrient substance additives, granulation, packing, is mixed with the feature fertilizer for different purposes.
Described dry spike is the mixture of clay, agricultural wastes and garden waste after pulverizing, and its mixing quality ratio is: 5～8:1:5～10.
Described mineral additive is one or more the mixture in clay, medical stone powder, diatomite in powder, volcano rock dust, perlite powder, zeolite powder, polygorskite powder, sepiolite powder, wollastonite powder, snake stone flour and vermiculite.
In described step 2, by forcing plough groove type supply air system and type air-inducing system, make the solid liquid waste mixture carry out gaseous interchange in mobile air-flow, the waste gas displaced is delivered to deodoration system; The lay thickness of solid liquid waste mixture in fermenter is 60～100cm.
In described step 3, the stacking width of solid liquid waste mixture is 1.5～2.0 meters, is highly 0.5～1.0 meter.
After described step 3, the part fermented product is re-started to step 1 to step 4.
This solid liquid waste oxygen enrichment biological treatment system, comprise blending device, the fermenter of processing the solid liquid waste mixture, bar buttress formula fermentation place and mixing machinery, wrapping mechanism that order arranges, described fermenter is positioned at fermentation plant, the building enclosure of fermentation plant is provided with that sunlight is injected, the passage of circulation of air and water vapour circulation, and described fermenter both sides and bar buttress formula fermentation Tiao Duo both sides, place are all across the track be provided with for the material turning machine walking.
The bottom of described solid liquid waste mixture, on the ground of fermentation plant, be provided with the aeration pipe trench, be provided with the aeration tube that can inflate and the foul smell in the fermented product stockpile is blown out to fermented product stockpile aeration from bottom in described aeration pipe trench, be furnished with solarization air cap on aeration tube, be filled with pebbles around aeration tube, respectively be covered with one deck Filtration Adsorption layer on the bottom of aeration pipe trench and top pebbles;
Be equipped with foul smell is blown to solid liquid waste mixture two ends at, 0.8～1 meter, overhead of distance solid liquid waste mixture stockpile, spray deodorant liquid simultaneously and remove the high pressure deodorization spraying machine of solid liquid waste mixture part foul smell, the spout of high pressure deodorization spraying machine is towards the solid liquid waste mixture;
The foul smell that the solid liquid waste mixture can be produced that suspends below the roof at solid liquid waste mixture two ends is evacuated to outdoor air draught airduct, be distributed with wind inlet on the air draught airduct, the outlet air end of air draught airduct is communicated with the inlet mouth of the spray deodorizing tower of administering foul smell.
Described aeration tube bank fermented product stockpile length is to being provided with together or Liang Zhi arranged side by side tri-roads.
Described solarization air cap is distributed in oliquely downward 45 degree places, aeration tube two side, and the spacing of solarization air cap is 5～10cm.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention is mixed solid liquid waste, livestock and poultry cultivation ight soil, dry spike by formula rate, by combination trough type fermentation and bar buttress formula zymotechnique, its fermenting process is carried out under excess oxygen, macromole organic matter in material is progressively degraded, reduce foul smell and produce, and make the water ratio of material finally drop to 30%.During the fermentation, the high temperature of 50 ~ 70 ℃ can be killed various harmful bacterias and worm's ovum, has reached innoxious and purpose minimizing.The present invention adopts oxygen enrichment technology, promotes the material fermentation that is rapidly heated, and completes resource utilization, the harmless treatment of solid liquid waste.It is below 8 millimeters that material after fermentation is crushed to granularity through disintegrating apparatus, and the final fertilizer formed meets national sector standard, can be used for afforestation, improvement sandy bare land etc.
Advantage of the present invention is as follows:
1, traditional compost or other aerobic fermentation process technological method fermentation periods are long, generally more than 10 ~ 30 days.Adopt solid liquid waste oxygen-enriched biological treatment method and system can shorten fermentation period, reduce floor space and running cost, solved the secondary pollution problems such as stench that in the aerobic fermentation, local anaerobism produces.
2, solid liquid waste oxygen-enriched biological treatment method and system adopt the circulation oxygen-enriched stream that is mixed to add the mechanical stirring mode, have increased the oxygen level of fermenting process.
3, present technique is compared and has been reduced energy consumption with techniques such as tradition or conventional mechanical compost or mechanical biological dryings.
The present invention is based on the sludge composting technology, utilize oxygen enrichment technology to improve the rate of becoming thoroughly decomposed of material aerobic fermentation, shorten fermentation period, reduce production costs, enlarged the technique for the treatment of scale in floor space under constant prerequisite.
The present invention is applicable to the processing of the solid liquid wastes such as mud, domestic refuse, livestock and poultry cultivation ight soil, plant husbandry and gardens solid waste of urban wastewater treatment firm generation.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is process flow sheet of the present invention.
Fig. 2 is the schematic diagram of the biological oxygen-enriched fermentation of slot type.
Fig. 3 is the structural representation (band material turning machine) of the biological oxygen-enriched fermentation treatment plant of slot type.
Fig. 4 is the structural representation (band aeration pipe trench) of the biological oxygen-enriched fermentation treatment plant of slot type.
Fig. 5 is the distribution plan of solarization air cap on aeration tube.
Fig. 6 is the plot plan of air draught airduct.
Fig. 7 is the schematic diagram of bar buttress formula fermentation.
Reference numeral: 1-solid liquid waste mixture, 2-fermenter, 3-fermentation plant, 4-sunlight, 5-air, 6-water vapour, 7-bar buttress formula fermentation place, 8-material turning machine, 9-roof, 10-body of wall, 11-high pressure deodorization spraying machine, 12-aeration pipe trench, 13-aeration tube, 14-solarization air cap, 15-pebbles, 16-Filtration Adsorption layer, 17-air draught airduct, 18-wind inlet, 19-blower fan, 20-track.
embodiment
Embodiment mono-, shown in Figure 1, processes the excess sludge that certain urban wastewater treatment firm produces, and its water content is that 85～88%, pH is 7.3, and organic content is greater than 65%.
This solid liquid waste oxygen-enriched biological treatment method, step is as follows:
Step 4, fragmentation, packing, be crushed to fine grain fertilizer below 8 millimeters by the material 1 after fermentation.
Solid liquid waste can be excess sludge or the screen underflow of application of city life garbage process sorting generation or the mixture of the two that urban wastewater treatment firm produces.
Dry spike is the mixture of clay, agricultural wastes and garden waste after pulverizing, and its mixing quality ratio is: 5～8:1:5～10.Dry spike except above-mentioned different materials, can also adopt stalk, straw, rice husk, boll hull, peat, argol just, one or more the mixture in stationery rubbish, medical stone powder, diatomite in powder, volcano rock dust, perlite powder, zeolite powder, polygorskite powder, sepiolite powder, wollastonite powder, snake stone flour and vermiculite.
The mineral additive is one or more the mixture in volcano rock dust, perlite powder, zeolite powder, polygorskite powder, sepiolite powder, wollastonite powder, snake stone flour and vermiculite.
The fertilizer of making after embodiment mono-fermentation meets the national Ministry of Agriculture " organic fertilizer " standard, total nutrient > 4.5%, the coliform value > 0.111g/.
Embodiment bis-, shown in Figure 1, process the screen underflow that application of city life garbage produces through sorting, and water ratio is 80～85%, this solid liquid waste oxygen-enriched biological treatment method, and step is as follows:
Step 4, fragmentation, it is fine grain fertilizer below 8 millimeters that the solid liquid waste mixture 1 after fermentation is crushed to granularity.
Shown in Fig. 2, Fig. 3, Fig. 7, this solid liquid waste oxygen enrichment biological treatment system, comprise blending device, the fermenter 2 of processing solid liquid waste mixture 1, bar buttress formula fermentation place 7 and mixing machinery, crushing mechanism that order arranges, described fermenter 2 is positioned at fermentation plant 3, the building enclosure of fermentation plant 3 is provided with the passage that sunlight 4 is injected, air 5 circulates and water vapour 6 circulates, and described fermenter 2 both sides are across the track 20 be provided with for material turning machine 8 walkings.
Shown in Fig. 4-6, during the biological oxygen-enriched fermentation of described slot type, also can be in the bottom of solid liquid waste mixture 1, be provided with aeration pipe trench 12 on the ground of fermentation plant 3, be provided with the aeration tube 13 that can inflate and the foul smell in the fermented product stockpile is blown out to fermented product stockpile aeration from bottom in described aeration pipe trench 12, be furnished with solarization air cap 14 on aeration tube 13, be filled with pebbles 15 around aeration tube 13, respectively be covered with one deck Filtration Adsorption layer 16 on the bottom of aeration pipe trench 12 and top pebbles;
Be equipped with foul smell is blown to solid liquid waste mixture two ends at, 0.8～1 meter, overhead of distance solid liquid waste mixture stockpile 7, spray deodorant liquid simultaneously and remove the high pressure deodorization spraying machine 11 of solid liquid waste mixture part foul smell, the spout of high pressure deodorization spraying machine 11 is towards solid liquid waste mixture 7;
The foul smell that the solid liquid waste mixture can be produced that suspends below the roof 9 at solid liquid waste mixture two ends is evacuated to outdoor air draught airduct 17, be distributed with wind inlet 18 on the air draught airduct, the outlet air end of air draught airduct 17 is communicated with the inlet mouth of the spray deodorizing tower of administering foul smell.
Shown in Figure 5, described solarization air cap 14 is distributed in oliquely downward 45 degree places, aeration tube 13 two sides, and the spacing of solarization air cap 14 is 5～10cm.
Claims (6)
1. a solid liquid waste oxygen enrichment biological treatment system, it is characterized in that: comprise the blending device that order arranges, process the fermenter (2) of solid liquid waste mixture (1), bar buttress formula fermentation place (7) and mixing machinery, wrapping mechanism, described fermenter (2) is positioned at fermentation plant (3), the building enclosure of fermentation plant (3) is provided with sunlight (4) and injects, the passage of air (5) circulation and water vapour (6) circulation, the bar buttress both sides in described fermenter (2) both sides and bar buttress formula fermentation place (7) are all across the track (20) be provided with for material turning machine (8) walking,
The bottom of described solid liquid waste mixture (1), on the ground of fermentation plant (3), be provided with aeration pipe trench (12), be provided with the aeration tube (13) that can inflate and the foul smell in the fermented product stockpile is blown out to fermented product stockpile aeration from bottom in described aeration pipe trench (12), be furnished with solarization air cap (14) on aeration tube (13), be filled with pebbles (15) around aeration tube (13), respectively be covered with one deck Filtration Adsorption layer (16) on the bottom of aeration pipe trench (12) and top pebbles;
Be equipped with foul smell is blown to solid liquid waste mixture two ends at, 0.8～1 meter, overhead of distance solid liquid waste mixture stockpile, spray deodorant liquid simultaneously and remove the high pressure deodorization spraying machine (11) of solid liquid waste mixture part foul smell, the spout of high pressure deodorization spraying machine (11) is towards the solid liquid waste mixture;
The foul smell that the solid liquid waste mixture can be produced that suspends in the below, roof (9) at solid liquid waste mixture two ends is evacuated to outdoor air draught airduct (17), be distributed with wind inlet (18) on the air draught airduct, the outlet air end of air draught airduct (17) is communicated with the inlet mouth of the spray deodorizing tower of administering foul smell.
2. solid liquid waste oxygen enrichment biological treatment system according to claim 1 is characterized in that: described aeration pipe trench (12) is along fermented product stockpile length to being provided with together or Liang Zhi tri-roads side by side.
3. solid liquid waste oxygen enrichment biological treatment system according to claim 1, it is characterized in that: described solarization air cap (14) is distributed in oliquely downward 45 degree places, aeration tube (13) two side, and the spacing of solarization air cap (14) is 5～10cm.
4. a solid liquid waste oxygen-enriched biological treatment method of quoting the described solid liquid waste oxygen enrichment of claim 1-3 any one biological treatment system is characterized in that step is as follows:
Step 1, by solid liquid waste, livestock and poultry cultivation ight soil, dry spike in mass ratio 8:1:1～7:1:2 mixed, and adding the mineral additive to mix formation solid liquid waste mixture (1), the addition of mineral additive is 0.1～5% of dry spike weight; Described dry spike is the mixture of clay, agricultural wastes and garden waste after pulverizing, and its mixing quality ratio is: 5～8:1:5～10; Described mineral additive is more than one the mixture in clay, medical stone powder, diatomite in powder, volcano rock dust, perlite powder, zeolite powder, polygorskite powder, sepiolite powder, wollastonite powder, snake stone flour and vermiculite;
Step 2, the biological oxygen-enriched fermentation of slot type, solid liquid waste mixture (1) is transported in the fermenter (2) of fermentation plant, being filled with oxygen level in the material fermenting process > 40% the gas that is mixed is rapidly heated material to carry out abundant aerobic fermentation, and stir and make material all the time in the oxygen enrichment state by power machine in the material fermenting process, leavening temperature remains between 50～70 ℃, and fermentation time is 4～8 days, material is fermented to water ratio and drop to below 55%;
Step 3, bar buttress formula biological fermentation, will be through solid liquid waste mixture (1) the stand growth bar shaped stockpile of the biological oxygen-enriched fermentation of slot type, and stir and make material all the time in the oxygen enrichment state every day by power machine, fermentation time is 4～8 days, until water ratio drops to below 30%;
Step 4, be mixed with other nutrient substance additives, granulation, packing, is mixed with the feature fertilizer for different purposes.
5. solid liquid waste oxygen-enriched biological treatment method according to claim 4, it is characterized in that: pass through to force plough groove type supply air system and type air-inducing system in described step 2, make the solid liquid waste mixture carry out gaseous interchange in mobile air-flow, the waste gas displaced is delivered to deodoration system; The lay thickness of solid liquid waste mixture in fermenter is 60～100cm.
6. solid liquid waste oxygen-enriched biological treatment method according to claim 4, it is characterized in that: in described step 3, the stacking width of solid liquid waste mixture is 1.5～2.0 meters, is highly 0.5～1.0 meter.
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| CN104150990B (en) * | 2014-08-20 | 2016-08-17 | 湖南湘植园林科技有限公司 | A kind of preparation method of plant substrates |
| RU2663576C1 (en) * | 2017-10-05 | 2018-08-07 | Кирилл Сергеевич Бодров | Artificial soils |
| CN111802259B (en) * | 2020-07-14 | 2022-03-22 | 农业农村部规划设计研究院 | System and method for processing fermentation padding of dairy farm excrement |
| CN115368194A (en) * | 2022-08-30 | 2022-11-22 | 中国华电科工集团有限公司 | Organic soil for crops and preparation device thereof |
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Application publication date: 20110907 Assignee: LYUSE JIAYUAN (BEIJING) ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Assignor: Cui Wei Contract record no.: 2015990000201 Denomination of invention: Oxygen-enriched biological treatment method and system of solid liquid waste Granted publication date: 20131211 License type: Exclusive License Record date: 20150417 |
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Effective date of registration: 20180703 Address after: 100044 south new building 0312, construction department, 11 Three Li He road, Haidian District, Beijing Patentee after: LYUSE JIAYUAN (BEIJING) ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 100011 3, gate 11, 24 Huangsi street, Xicheng District, Beijing. Patentee before: Cui Wei |
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