CN103626538B - Trench type composting method for treating breeding sewage and solid wastes simultaneously - Google Patents
Trench type composting method for treating breeding sewage and solid wastes simultaneously Download PDFInfo
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- CN103626538B CN103626538B CN201310561346.4A CN201310561346A CN103626538B CN 103626538 B CN103626538 B CN 103626538B CN 201310561346 A CN201310561346 A CN 201310561346A CN 103626538 B CN103626538 B CN 103626538B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002910 solid waste Substances 0.000 title claims abstract description 38
- 238000009264 composting Methods 0.000 title claims abstract description 37
- 239000010865 sewage Substances 0.000 title claims abstract description 29
- 238000009395 breeding Methods 0.000 title claims abstract description 17
- 230000001488 breeding effect Effects 0.000 title claims abstract description 16
- 238000005273 aeration Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002912 waste gas Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002361 compost Substances 0.000 claims description 71
- 239000002351 wastewater Substances 0.000 claims description 45
- 238000009360 aquaculture Methods 0.000 claims description 41
- 244000144974 aquaculture Species 0.000 claims description 41
- 239000007789 gas Substances 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 10
- 230000001877 deodorizing effect Effects 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000007921 spray Substances 0.000 abstract description 2
- 238000004332 deodorization Methods 0.000 abstract 1
- 244000144972 livestock Species 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 244000144977 poultry Species 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a trench type composting method for treating breeding sewage and solid wastes simultaneously, which is used in the field of breeding waste treatment. The trench type composting method comprises the steps of collecting the breeding sewage of farms in a closed sewage pool via a concealed conduit, and colleting the solid wastes in a composting workshop near the sewage pool; leading the breeding sewage to a composting system by a water pump; adjusting the proportion of solid wastes to breeding sewage to auxiliary materials in the composting system, enabling the carbon nitrogen ratio to be (25-30):1 and water content to be 50-60%, moving the materials into a composting trench to undergo aerobic composting, and meanwhile, enabling the water pump to work to pump the breeding sewage in the sewage pool into the composting trench via a spray pipe above the composting trench; turning the breeding sewage and solid wastes in the composting trench, simultaneously aerating the composting trench via aeration openings formed at the bottom of the composting trench, exhausting the waste gases generated in the composting trench via a draught fan after collecting the waste gases, and carrying out dedusting and deodorization treatment. According to the invention, simple sewage treatment is changed into resource utilization of all breeding wastes, so that breeding waste treatment pressure is greatly reduced.
Description
Technical field
The present invention is used for breeding waste process field, particularly relates to a kind of trough composting method simultaneously processing aquaculture wastewater and solid waste.
Background technology
Large-scale cultivation is the certainty of animal husbandry development, and be also the item key of modernization of livestock farming, therefore livestock industry large-scale cultivation trend is irreversible.Along with the development of large-scale cultivation industry, one of its consequence is cultivation and being separated of planting link, and namely the generation of a large amount of livestock waste and process become the significant problem of aquaculture Sustainable development.Related data shows, and the generation of the annual feces of livestock and poultry of current China is 25-30 hundred million tons (fresh weight), and this numeral also will rise along with further developing of China's livestock and poultry breeding industry.Current China feces of livestock and poultry utilization ratio is less than 50%, just directly be not discharged in environment through process greatly, not only cause the significant wastage of organic resource, also to around water and soil environment, during many rivers and water body in lake pollute, aquaculture contribution rate is to more than 30%.
The sewage of plant remains the most outstanding problem that current livestock industry causes environmental pollution.The sewage water technology that major part plant of current China adopts remains: solid-liquid separation-anaerobic treatment-aerobic treatment, and technology is more ripe, but due to operating cost problem, promote difficulty comparatively large, implementation result is often undesirable.Biogas engineering is one of important means solving aquaculture wastewater and waste pollution, and technology is comparative maturity also, but also faces some problems, and for large and medium-sized plant, quantity of wastewater effluent is comparatively large, and build large-sized biogas engineering, disposable construction investment is huge.If run according to the mechanism of market economy, all lack the ability of benefit economically.And centralization-breeding factory is generally away from population center, biogas utilization is met difficulty.Natural pond liquid after process, natural pond slag also need investment on management, disposal and utilization, greatly increase the running expense of engineering.If the large-area growing area that plant's periphery does not adapt consumes natural pond liquid, so biogas engineering be equivalent to " source of pollution amplification " natural pond liquid that-----is a large amount of to a certain extent cannot safe disposal.
Current aquaculture wastewater principal pollutant remain organism and nitrogen phosphorus substance, the major technology bottleneck of the organic sewage process of this high density is the scope that the concentration of COD of sewage often exceeds conventional biological treatment and can bear, and sewage high concentration SS, nitrogen and phosphorus etc. also make conventional biological treatment be difficult to reply.
Summary of the invention
For solving the problem, the invention provides and a kind ofly can process the trough composting method that aquaculture wastewater and solid waste realize the whole recycling of livestock waste simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of trough composting method simultaneously processing aquaculture wastewater and solid waste, comprises the following steps:
A. the aquaculture wastewater hidden pipe of plant is collected in airtight sewage lagoon, and solid waste collection is in being located at the compost workshop near sewage lagoon;
B. with water pump, aquaculture wastewater is introduced compositing system;
C. the ratio of solid waste, aquaculture wastewater and auxiliary material in compositing system is adjusted, carbon-nitrogen ratio is made to be 25 ~ 30:1, water ratio is 50% ~ 60%, aerobic compost is carried out in shift-in compost groove, meanwhile, pump working and by the shower pipe above compost groove by the breeding wastewater pump in sewage lagoon in compost groove;
D. turning is carried out to the aquaculture wastewater in compost groove and solid waste, simultaneously by being located at the aeration opening of compost groove bottom land to aeration in compost groove, by being discharged by induced draft fan after the gas sampling produced in compost groove and carrying out dedusting, deodorizing process.
Be further used as the improvement of technical solution of the present invention, clear up solid waste in steps A and adopt dry clear excrement technique.
Be further used as the improvement of technical solution of the present invention, in step C, compost auxiliary material comprises mushroom residue and cavings.
Be further used as the improvement of technical solution of the present invention, in step D, the collection of waste gas is completed by the gas skirt covered on above compost groove, and the lower edge of gas skirt is provided with the plastics roller shutter be connected with compost groove, and gas skirt is provided with the vapor pipe connected with induced draft fan.
Be further used as the improvement of technical solution of the present invention, the waste gas in step D under the effect of induced draft fan along vapor pipe successively through fly-ash separator, drip filter tower and biological filter, so complete dedusting, deodorizing process.
Beneficial effect of the present invention: this processes in the trough composting method of aquaculture wastewater and solid waste simultaneously, aquaculture wastewater and solid waste are collected respectively in rear importing compost groove, by compost auxiliary material adjustment carbon-nitrogen ratio and water ratio, then the aeration opening of compost groove bottom land is coordinated, aquaculture wastewater and solid waste are supported to composting well and obtained compost simultaneously, the waste gas of generation is carried out dedusting, deodorizing process simultaneously, avoid polluting.It is the whole recycling of livestock waste that the present invention becomes simple sewage disposal, realizes aquaculture wastewater zero release, can significantly reduce aquaculture wastewater processing pressure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is schema of the present invention;
Fig. 2 implements compositing system schematic diagram of the present invention.
Embodiment
With reference to Fig. 1, Fig. 2, the invention provides a kind of trough composting method simultaneously processing aquaculture wastewater and solid waste, comprise the following steps:
A. the aquaculture wastewater hidden pipe of plant is collected in airtight sewage lagoon 31, and solid waste is collected in by dry clear excrement technique the compost workshop 1 be located near sewage lagoon 31;
B. with water pump 32, aquaculture wastewater is introduced compositing system;
C. the ratio of solid waste, aquaculture wastewater and auxiliary material in compositing system is adjusted, carbon-nitrogen ratio is made to be 25 ~ 30:1, water ratio is 50% ~ 60%, aerobic compost is carried out in shift-in compost groove 2, meanwhile, water pump 32 work and by the shower pipe 3 above compost groove 2 by the breeding wastewater pump in sewage lagoon 31 in compost groove 2;
D. turning is carried out to the aquaculture wastewater in described compost groove 2 and solid waste, simultaneously by being located at the aeration opening 21 of compost groove 2 bottom land to aeration in compost groove 2, by being discharged by induced draft fan 8 after the gas sampling produced in compost groove 2 and carrying out dedusting, deodorizing process.So come breeding wastewater and solid waste are carried out to aerobic composting process simultaneously and obtain compost; In composting process, collected by the gas skirt 41 covered on above compost groove 2 by the waste gas produced in compost groove 2, the lower edge of gas skirt 41 is provided with the plastics roller shutter 42 be connected with compost groove 2, gas skirt 41 is provided with the vapor pipe 4 connected with induced draft fan 8, waste gas after collection under the effect of induced draft fan 8 along vapor pipe 4 successively through fly-ash separator 5, drip filter tower 6 and biological filter 7, so complete dedusting, deodorizing process.
This processes in the trough composting method of aquaculture wastewater and solid waste simultaneously, aquaculture wastewater and solid waste are collected respectively in rear importing compost groove 2, by compost auxiliary material adjustment carbon-nitrogen ratio and water ratio, then the aeration opening 21 of compost groove 2 bottom land is coordinated, aquaculture wastewater and solid waste are supported to composting well and obtained compost simultaneously, the waste gas of generation is carried out dedusting, deodorizing process simultaneously, avoid polluting.It is the whole recycling of livestock waste that the present invention becomes simple sewage disposal, realizes aquaculture wastewater zero release, can significantly reduce aquaculture wastewater processing pressure.
As the preferred embodiment of the present invention, in step C, compost auxiliary material comprises mushroom residue and cavings.
With reference to Fig. 2, implement compositing system of the present invention and comprise compost workshop 1, some shower pipes 3 being located at the compost groove 2 in compost workshop 1 and being caused by aquaculture wastewater in each compost groove 2, the bottom land of each compost groove 2 is equipped with aeration opening 21, wall through compost workshop 1 arranges the vapor pipe 4 of being derived by waste gas, the arranged outside sewage lagoon 31 in compost workshop 1 and by the aquaculture wastewater pump in sewage lagoon 31 to the water pump 32 of shower pipe 3.The below of compost groove 2 is provided with the aeration tube 22 all connected with each aeration opening 21, and the mouth of pipe place of aeration tube 22 connects gas blower 23.The side of compost groove 2 built in by gas blower 23, and by aeration tube 22 to aeration in compost groove 2, supports composting well to solid waste.Arrange the gas skirt 41 covering each compost groove 2 in compost workshop 1, the inlet mouth of vapor pipe 4 visits the top to compost groove 2 through gas skirt 41, and the lower edge of gas skirt 41 is provided with the plastics roller shutter 42 be connected with compost groove 2.Connect with the air outlet of vapor pipe 4 and tornado dust collector 5 are set.Also comprise and drip filter tower 6, biological filter 7 and agitate by tornado dust collector 5 expellant gas successively through the induced draft fan 8 dripping filter tower 6, biological filter 7, induced draft fan 8 is arranged on tornado dust collector 5 and drips between filter tower 6.Deodorizing is carried out by a filter tower 6 and biological filter 7 after the waste gas of tornado dust collector 5 removes dust, composite deodurizing liquid is added with bottom a filter tower 6, passed through the filler dripping filter tower 6, drip filter tower 6 and be provided with three grades of fillers, wherein two-stage filler is installed spray equipment and can remove most of foul smell at a filter tower 6, remainder of exhaust gas enters biological filter 7 and degrades further.
During work, solid waste puts into long and narrow compost groove 2 by dry clear excrement technique, track is set up above compost groove 2, stack turner is walked in orbit and is carried out turning to solid waste simultaneously, aquaculture wastewater and solid waste are placed in compost groove 2, coordinate the aeration opening 21 of compost groove 2 bottom land, composting is carried out to it, the waste gas of generation is derived by vapor pipe 4.Due to the nitrogen loss of During High-Temperature Composting ubiquity and odor pollution problem, the present invention is while trough composting process cultivation solid waste, the aquaculture wastewater of high density is added gradually by shower pipe 3 in During High-Temperature Composting process, decrease composting process nitrogen loss and foul smell discharge, improve compost nutrient content simultaneously.
Adopt gas skirt 41 to connect compost groove 2 relative closure with plastics roller shutter 42, guarantee turning device normally run overcome simultaneously open composting space moisture evaporation in existing design less, foul smell is difficult to the problem of collection.Induced draft fan 8 is the blower fans for gas skirt 41 collection and confinement of gases, simultaneously for sending into the blower fan of gas to a filter tower 6.Simultaneously, gas skirt 41 and plastics roller shutter 42 is utilized to connect relative for compost groove 2 airtight, the high temperature that aerobic compost produces makes warm air constantly rise, water evaporation quantity is large, coordinate the method that suitable malleation aeration and negative pressure induced wind combine, the high temperature utilizing compost to produce can remove moisture a large amount of in windrow and foul smell, makes compost material rapid drying.When dry materials to a certain degree after, the aquaculture wastewater of high density can be repeated to be added by shower pipe in the windrow of compost groove 2, and therefore this compositing system can process a large amount of height concentration organic wastewater simultaneously.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (5)
1. process a trough composting method for aquaculture wastewater and solid waste simultaneously, it is characterized in that comprising the following steps:
A. the aquaculture wastewater hidden pipe of plant is collected in airtight sewage lagoon, and solid waste collection is in being located at the compost workshop near sewage lagoon;
B. with water pump, aquaculture wastewater is introduced compositing system;
C. the ratio of solid waste, aquaculture wastewater and auxiliary material in described compositing system is adjusted, carbon-nitrogen ratio is made to be 25 ~ 30:1, water ratio is 50% ~ 60%, aerobic compost is carried out in shift-in compost groove, meanwhile, pump working by the shower pipe above compost groove by the breeding wastewater pump in sewage lagoon to described compost groove;
D. turning is carried out to the aquaculture wastewater in described compost groove and solid waste, simultaneously by being located at the aeration opening of described compost groove bottom land to aeration in compost groove, by being discharged by induced draft fan after the gas sampling produced in described compost groove and carrying out dedusting, deodorizing process.
2. the trough composting method simultaneously processing aquaculture wastewater and solid waste according to claim 1, is characterized in that: clear up described solid waste in steps A and adopt dry clear excrement technique.
3. the trough composting method simultaneously processing aquaculture wastewater and solid waste according to claim 1, is characterized in that: the auxiliary material of compost described in step C comprises mushroom residue and cavings.
4. the trough composting method simultaneously processing aquaculture wastewater and solid waste according to claim 1, it is characterized in that: the collection of waste gas described in step D is completed by the gas skirt covered on above described compost groove, the lower edge of described gas skirt is provided with the plastics roller shutter be connected with described compost groove, and described gas skirt is provided with the vapor pipe connected with described induced draft fan.
5. the trough composting method simultaneously processing aquaculture wastewater and solid waste according to claim 4, it is characterized in that: the described waste gas in step D under the effect of induced draft fan along described vapor pipe successively through fly-ash separator, drip filter tower and biological filter, so complete dedusting, deodorizing process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310561346.4A CN103626538B (en) | 2013-11-12 | 2013-11-12 | Trench type composting method for treating breeding sewage and solid wastes simultaneously |
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| CN201310561346.4A CN103626538B (en) | 2013-11-12 | 2013-11-12 | Trench type composting method for treating breeding sewage and solid wastes simultaneously |
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| CN103626538A CN103626538A (en) | 2014-03-12 |
| CN103626538B true CN103626538B (en) | 2015-04-15 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072225A (en) * | 2014-07-21 | 2014-10-01 | 雷立华 | Groove-type composting method for non-stink-discharging breeding sewage and solid waste |
| CN105859349A (en) * | 2016-06-08 | 2016-08-17 | 蔡永辉 | Aerating, collecting and exhausting combining system in solid-state-composting aerobic fermentation and application thereof |
| CN108203317A (en) * | 2016-12-20 | 2018-06-26 | 中国科学院城市环境研究所 | A kind of feces of livestock and poultry cooperates with consumption technology with breeding wastewater |
| CN107449871B (en) * | 2017-09-06 | 2023-07-18 | 北京市农林科学院 | Reactor for monitoring discharge of composting or sewage storage gas |
| CN107759264A (en) * | 2017-12-06 | 2018-03-06 | 无锡启集智能科技有限公司 | A kind of fertilizer zymotechnique |
| CN108046854A (en) * | 2018-01-06 | 2018-05-18 | 天津大学 | Mushroom bran for heavy metal adsorption-bacterial manure fermentation recycles coupling device and method |
| CN111547795B (en) * | 2020-04-30 | 2021-07-30 | 南京大学 | Organic fertilizer maintenance method, maintenance tank and integrated maintenance equipment for realizing zero discharge of stored domestic garbage leachate |
| CN113004064A (en) * | 2021-02-18 | 2021-06-22 | 东北大学 | High-concentration organic wastewater treatment method |
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| CN101875528B (en) * | 2010-05-17 | 2012-06-06 | 重庆大学 | Equipment and method for integrally treating sludge and household garbage in town sewage treatment plant |
| CN102531308A (en) * | 2012-02-24 | 2012-07-04 | 中国环境科学研究院 | Method and device for performing combined treatment on livestock and poultry excrement, straws and sewage |
| CN103242073B (en) * | 2013-05-23 | 2015-09-02 | 广东省农业科学院农业资源与环境研究所 | A kind of slot type aerobic compost foul smell reduces discharging, collects and treatment process |
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