CN109797099A - Marsh gas treatment device and treatment process based on night soil and stalk - Google Patents
Marsh gas treatment device and treatment process based on night soil and stalk Download PDFInfo
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- CN109797099A CN109797099A CN201910186223.4A CN201910186223A CN109797099A CN 109797099 A CN109797099 A CN 109797099A CN 201910186223 A CN201910186223 A CN 201910186223A CN 109797099 A CN109797099 A CN 109797099A
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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
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Abstract
The present invention relates to a kind of marsh gas treatment device and treatment process based on night soil and stalk.The primary anaerobic fermentation pond being connected including straw preprocessing pond, feeding inlet with straw preprocessing pond, it is connected with the discharge port in primary anaerobic fermentation pond and for the multistage anaerobic fermentation vat to the further anaerobic fermentation of sewage after primary anaerobism, the hydrolysis filtering pond being connected with the tapping channel of multistage anaerobic fermentation vat, and biogas is made to the methane purifying system of purified treatment by pipeline, marsh gas power generation equipment and plus bacterium aeration tank.Marsh gas treatment device based on night soil and stalk of the invention, combine straw preprocessing pond, primary anaerobic fermentation pond and multistage anaerobic fermentation vat, secondary hydrolytic tank and multistage filtering pond, the rear end lotus rhizome plantation pool etc., scientific structure design is reasonable, is connected compact between each section.
Description
Technical field
The present invention relates to agricultural environment engineering fields, specifically, being a kind of biogas treatment based on night soil and stalk
Device and treatment process.
Background technique
The current biogas project in China mainly has the middle-size and small-size methane-generating pit of domestic methane tank and farm and large and medium-sized biogas
Engineering several types, the situation of generally existing utilization rate deficiency, utilization rate is well below 50%.Family is mainly reflected in small-sized natural pond
Gas pond is due to insufficient raw material, and distributing cultivation is by market, and brawn drain, managerial experiences are insufficient, and it is unstable to produce gas；It is big-and-middle
For type biogas project there are energy consumption height, lagging facility is not in place, manages all various aspects such as not in place, leads to most of biogas therefrom
The status that engineering is abandoned.
Agricultural crop straw is the maximum byproduct of quantity in agricultural production, is a kind of precious resources of a large amount of indissolubility,
If being comprehensively utilized, it can not only turn waste into wealth, preserve the ecological environment, promote the sustainable development of agricultural production, but also can
A large amount of cheap raw material is provided for fertilizer, herding, edible mushroom, the energy, processing industry etc., to drive the structure of rural undertaking or even whole
The change of a rural structure promotes the raising of life of farmers quality and the improvement of urban and rural environment.Previous peasant's understanding is less than stalk
It is a kind of precious resources, is discarded or burns, not only result in waste of resources, but also bring serious environmental pollution, causes
The social concerns such as traffic safety.
It is also fabulous Organic Ingredients that town dweller, which changes the night soil behind lavatory, and China is up and down one in Farming Culture in 5000
Directly favorably with night soil plantation crops, the custom of vegetables, the fertilizer for being also accustomed to pure ecosystem plants gourd, fruit and vegetable.With society
Progress, brawn drain, rural area aging, the night soil of peasant's lavatory hire profession take out slag social personnel extract after everywhere
Toppling over (river, edge of the village countryside) not only polluted water source, environment but also recycling, the nothing of not accomplishing to plant waste and breeding waste
Evilization utilizes.It causes greatly to waste.The processing of sewage is a urgent problem to be solved, if any row without any processing
It puts, sewage flows into the water that earth's surface and people drink and flows to together, even if drinking water by purification, but wherein contains various
Hazardous substance still will affect people's health.
Summary of the invention
The present invention is intended to provide a kind of marsh gas treatment device and treatment process based on night soil and stalk, passes through the device
The marsh gas treatment technology of realization can effectively solve the problem that the problems in background technique and rural urbanization resident living sewage and peanut stems
The problem of wastings of resources such as stalk, corn stover, processing of farm products residue, has filled up the technology of rural area night soil and stalk processing
Blank.
The present invention is achieved by the following technical solutions:
Marsh gas treatment device based on night soil and stalk, is characterized in that, comprising:
Straw preprocessing pond: for accommodating the agricultural wastes such as stalk and by living to spray inside it or casting night soil etc.
Sewage completes the process that the agricultural wastes such as stalk are sufficiently infiltrated and decomposed with corruption；Its bottom is provided with drainage channel；
Primary anaerobic fermentation pond: its feeding inlet is connected with the drainage channel of straw preprocessing pond, pre- from stalk for receiving
The sewage of processing pond kills worm's ovum and grass-seed in sewage using high temperature, anaerobism, improves the activity of methane backeria, improves factor of created gase；
Plug-flow cloth wall is laid with inside it, surrounding and bottom are laid with temperature control device；
Multistage anaerobic fermentation vat: for extending feed liquid demurrage to the further anaerobic fermentation of sewage after primary anaerobism, make its into
One step is decomposed；Its feeding inlet is connected with the discharge port in primary anaerobic fermentation pond, and plug-flow cloth wall is laid with inside fermentation vat；It is more
The feed liquid that grade anaerobic fermentation pond generates is emitted into hydrolysis filtering pond via pipeline, and the biogas that anaerobic fermentation pond generates is via pipeline
Methane purifying system is delivered to after collecting；
Hydrolysis filtering pond: it is connected with the tapping channel of multistage anaerobic fermentation vat, for from multistage anaerobic fermentation vat
Feed liquid carries out secondary aerobic and hydrolysed filtrate；
Methane purifying system: the biogas of primary anaerobic fermentation pond and the generation of multistage anaerobic fermentation vat is collected by pipeline is delivered to natural pond
In gas purification system, the methane purifying system uses existing desulfurization dewatering purification system, by methane purifying system to natural pond
Gas makees desulfurization dewatering purified treatment.
Marsh gas power generation equipment: the biogas warp including Biogas Generator Set, generator and heat recovery apparatus, after desulfurizing and purifying
Pipeline enters Biogas Generator Set, after the heat generated in Biogas Generator Set power generation process is exchanged heat by heat exchanger, by the road
It is recycled in straw preprocessing pond and primary anaerobic fermentation pond and recycles；
Aeration tank: it is connected with the tapping channel in hydrolysis filtering pond, the feed liquid after bioinactivation enters aeration tank, adds herein
Different biological flora and aeration improve the content of dissolved oxygen in feed liquid by aeration, different according to demand that different bacterium is added
Kind, improve the resistance of crops；
The tapping channel inner wall in the hydrolysis filtering pond adds tubular type ultraviolet sterilizer, quilt while feed liquid flows through tapping channel
Disinfection by ultraviolet light is to achieve the purpose that bioinactivation.
The straw preprocessing pond includes processing pond ontology, and the processing pond ontology has useless for placing the agricultural such as stalk
The support ramp of gurry, the bottom of slope of the support ramp are equipped with filter screen, and the lower part of the filter screen is connected with liquid collecting pipeline；
The liquid collecting pipeline discharge outlet is placed in the feeding inlet in the primary anaerobic fermentation pond；
The primary anaerobic fermentation pond includes feeding inlet, discharge port and the gas piping for collecting biogas, in the surrounding of its fermentation vat
And bottom is laid with the temperature control device of heating coil composition；By temperature control device to the feed liquid in the primary anaerobic fermentation pond into
Row heating heating；Inner space between the fermentation vat feeding inlet and discharge port is laid with plug-flow cloth wall, the plug-flow
Cloth wall extends towards using the inner wall in two opposite length directions and has the several vertical of certain intervals distance
Retaining wall, the spacing distance between adjacent two vertical retaining walls constitute the feed liquid passage of S shape；
The hydrolysis filtering pond is successively laid with three-level filter device along feed liquid trend in pond, and the three-level filter device includes
Positioning basket and the filter medium being placed in inside positioning basket；The positioning basket structure of the three-level filter device is identical, no
Filtering with, the whole straw that the filter medium in first level filtering device is wrapped up using mesh bag, in two-stage filter
The broken stalk that medium is wrapped up using mesh bag, the saw that the filter medium in three-level filter device is wrapped up using mesh bag
End；After the three-level filter device, hydrolysis filtering pond end be configured with rotary drum grid machine, the feed liquid after three-stage filtration
Into in Barrate type grilling machine drum, flowed out with radial radiation shape through sieve, the bulky grains such as stalk are trapped back to stalk in water
Pretreatment pool is discharged via the feed liquid of Barrate type grilling machine sieve outflow by tapping channel.
Marsh gas treatment technology based on night soil and stalk, is characterized in that, comprising the following specific steps
S1, the agricultural product castoffs such as stalk are deposited into straw preprocessing pond in advance；
S2, the top spray by the domestic sewage in rural areas being collected into from straw preprocessing pond or casting, it is useless that sewage infiltrates agricultural product
After gurry, enter primary anaerobic fermentation pond via the drainage channel of bottom of pond；
S3, the operating temperature in primary anaerobic fermentation pond is adjusted to 60-70 DEG C, after feed liquid enters primary anaerobic fermentation pond, sent out
Formation S shape flow direction, anaerobism period of the feed liquid in primary anaerobic fermentation pond are under the barrier effect of plug-flow cloth wall inside ferment pond
10-12 days, sufficiently enter multistage anaerobic fermentation vat through tapping channel gravity flow after killing aerobic bacteria, roundworm egg and grass-seed；
S4, it acts on into the feed liquid connecting inner plug-flow cloth wall in multistage anaerobic fermentation vat at this normal temperature fermentation 40-60 days, it
Enter hydrolysis filtering pond afterwards, the biogas that the biogas generated in multistage anaerobic fermentation vat is generated with primary anaerobic fermentation pond converges by the road
Methane purifying system is sent into after collection；
S5, it is filtered step by step into the feed liquid in hydrolysis filtering pond via in pond, eventually by rotary drum grid machine remaining floating material
And thick slag pellet filters out, the feed liquid filtered enters in aeration tank after bioinactivation plus bacterium aeration；
Biogas after desulfurizing and purifying enters marsh gas power generation equipment, the heat generated in Biogas Generator Set power generation process by the road
After being exchanged heat by heat exchanger, it is recycled in straw preprocessing pond and primary anaerobic fermentation pond and recycles by the road；
S6, feed liquid are in aeration tank, add bacterium 24 hours not intermittent aerating, and it is standby that the liquid fertilizer after aeration enters Liquid Fertilizer storage pool
With；
S7, the liquid fertilizer in Liquid Fertilizer storage pool is used for agricultural production.
In the step S1, the agricultural product castoffs such as stalk refer to corn stover, peanut straw, fruit tree branch and vegetable seed
Plant waste；
In the step S2, it is 5-8 that the pH value of the domestic sewage in rural areas, which pre-adjusts,；The domestic sewage in rural areas refers to cultivation
Field excrement waste, town dweller's sanitary sewage and kitchen waste material；
In the step S5, the tapping channel inner wall installation tubular type that the mode of feed liquid bioinactivation is utilized in hydrolysis filtering pond is purple
Outside line sterilizer, feed liquid through disinfection by ultraviolet light and then achieve the purpose that biological sterilization while flowing through tapping channel；
In the step S6, the biological flora being added in aeration tank is selected according to different demands, and its purpose is to make to add
Feed liquid after bacterium aeration forms the liquid fertilizer of different function, improves crop quality to reach and improve yield, improves crop
Resistance promotes crop root growth and adjusts the pH value of soil, reduces soil salt and crab closes Trace Elements in Soil
Effect.
In the step S7, with fertile dull season, liquid fertilizer is directly used in the plantation of lotus pool lotus rhizome.
Marsh gas treatment device based on night soil and stalk of the invention combines straw preprocessing pond, primary anaerobism hair
Ferment pond and multistage anaerobic fermentation vat, secondary hydrolytic tank and multistage filtering pond, the rear end lotus rhizome plantation pool etc., scientific structure design is closed
It manages, is connected compact between each section.The marsh gas treatment technology of night soil and stalk based on the device, biogas, natural pond fertilizer yield are big,
Biogas slurry and biogas residue is comprehensively utilized, and is integrally established and is administered the pollution of aquaculture face using biogas project as tie, solves town dweller
Sanitary sewage disorderly burn by discharge, the solution agricultural crop straw edge of a field, forms the ecosystem of benign cycle, improves the comprehensive of biogas project
Benefit is closed, thoroughly solves the problems, such as that for many years biogas project biogas slurry difficulty utilizes.Simple process manages, is easy to operate.Engineering is thrown
Money is few, and operating cost is low.
Detailed description of the invention
Fig. 1: the marsh gas treatment device overall structure diagram based on night soil and stalk；
Fig. 2: straw preprocessing pond structural schematic diagram；
Fig. 3: the top view in primary anaerobic fermentation pond；
Fig. 4: hydrolysis filtering pool structure schematic diagram.
Specific embodiment
Below in conjunction with specific embodiment, for the structure to the marsh gas treatment device of the invention based on night soil and stalk
The detailed process of composition and treatment process is described in further detail, so that those skilled in the art were more fully accurate
Understand technical solution of the present invention.
Embodiment 1
Provided in this embodiment is a kind of marsh gas treatment device based on night soil and stalk, which is by stalk pretreatment
Pond, primary anaerobic fermentation pond, multistage anaerobic fermentation vat, hydrolysis filtering pond, methane purifying system, marsh gas power generation equipment, aeration tank,
Liquid Fertilizer storage pool and the plantation of lotus pool lotus rhizome；Above-mentioned processing unit is respectively formed biogas and the control of biogas slurry two-way；Wherein, stalk
Pretreatment pool is connected with primary anaerobic fermentation pond, and primary anaerobic fermentation pond is connected with multistage anaerobic fermentation vat, multistage anaerobic fermentation
Pond is connected with hydrolysis filtering pond and methane purifying system respectively；Hydrolyze filtering Chi Yujia bacterium aeration tank be connected, add bacterium aeration tank with
Liquid Fertilizer storage pool is connected, and Liquid Fertilizer storage pool is connected with the lotus lotus rhizome plantation pool；Methane purifying system they be between each other
The gravity flow connection that the geopotentia difference to be formed realizes liquid is set by position.Wherein, the straw preprocessing pond includes processing
Pond ontology 10, the processing pond ontology 10 have the support ramp 11 for placing the agricultural wastes such as stalk, the support slope
The bottom of slope of platform 11 is equipped with filter screen 12, and the lower part of the filter screen 12 is connected with liquid collecting pipeline 13；13 row of liquid collecting pipeline
The feeding inlet that mouth is placed in the primary anaerobic fermentation pond is put, for the ease of being poured domestic sewage in rural areas into straw preprocessing pond,
Spray equipment can be installed at the top of the straw preprocessing pond, the spray equipment is using existing conventional structure come real
Existing spray function.The primary anaerobic fermentation pond 20 includes the pan feeding being connected with the liquid collecting pipeline discharge outlet of straw preprocessing pond
Mouthfuls 21, the gas piping of the discharge port 22 and collection biogas that are mutually connected with multistage anaerobic fermentation vat, its fermentation vat surrounding and
Bottom is laid with the temperature control device 23 of heating coil composition；By temperature control device 23 to the material in the primary anaerobic fermentation pond 20
Liquid carries out heating heating；22 inner space is laid with plug-flow cloth wall between the fermentation vat feeding inlet 21 and discharge port,
The plug-flow cloth wall extends towards using the inner wall in two opposite length directions and has certain intervals distance
Several vertical retaining walls 24, the spacing distance between adjacent two vertical retaining walls 24 constitute the feed liquid passage of S shape.The multistage
Anaerobic fermentation pond is used to extend feed liquid demurrage to the further anaerobic fermentation of sewage after primary anaerobism, decompose it further；
Its feeding inlet is connected with the discharge port in primary anaerobic fermentation pond, with primary anaerobic fermentation pool structure the difference is that multistage is detested
Plug-flow cloth wall is only laid with inside aerobe fermentation pond, without laying temperature control device；The feed liquid warp that multistage anaerobic fermentation vat generates
It is emitted into hydrolysis filtering pond by pipeline, the biogas that multistage anaerobic fermentation vat generates is delivered to marsh gas purifying after collecting via pipeline
System；Hydrolysis filtering pond is connected with the tapping channel of multistage anaerobic fermentation vat, for from multistage anaerobic fermentation vat
Feed liquid carries out secondary aerobic and hydrolysed filtrate.The hydrolysis filtering pond 30 is successively laid with three-stage filtration along feed liquid trend in pond
Device, the three-level filter device include the filter medium for positioning basket 31 and being placed in inside positioning basket；The three-level mistake
The positioning basket structure for filtering device is identical, unlike, the filter medium in first level filtering device 32 is wrapped up using mesh bag
Whole straw, the broken stalk that the filter medium in two-stage filter 33 is wrapped up using mesh bag, three-level filter device 34
In the sawdust that is wrapped up using mesh bag of filter medium；After the three-level filter device, hydrolysis filtering pond end match
It is equipped with rotary drum grid machine 35, the feed liquid after three-stage filtration enters in Barrate type grilling machine 35, with radial radiation shape through sieve stream
Out, the feed liquid that the bulky grains such as stalk are trapped back to straw preprocessing pond, via the outflow of Barrate type grilling machine sieve in water is logical
Cross tapping channel discharge.
The biogas that primary anaerobic fermentation pond and multistage anaerobic fermentation vat generate is collected by pipeline is delivered to marsh gas purifying system
In system, the methane purifying system uses existing desulfurization dewatering purification system, makees desulfurization to biogas by methane purifying system
Dewatered clean processing.Marsh gas power generation equipment includes Biogas Generator Set, generator and heat recovery apparatus, the natural pond after desulfurizing and purifying
Gas enters Biogas Generator Set by the road, after the heat generated in Biogas Generator Set power generation process is exchanged heat by heat exchanger, warp
Pipeline is recycled in straw preprocessing pond and primary anaerobic fermentation pond and recycles.
The marsh gas treatment device of above embodiments combines straw preprocessing pond, primary anaerobic fermentation pond and multistage anaerobic
Fermentation vat, secondary hydrolytic tank and multistage filtering pond, the rear end lotus rhizome plantation pool etc., scientific structure design is reasonable, between each system
It is connected compact.
Embodiment 2
A kind of marsh gas treatment technology realized based on the marsh gas treatment device of embodiment 1 provided in this embodiment, including it is following
Specific steps:
S1, the agricultural product castoffs such as stalk are deposited into straw preprocessing pond in advance, under normal circumstances, for full load,
Stalk in straw preprocessing pond is piled with, the agricultural product castoffs such as described stalk refer to corn stover, peanut straw, fruit tree
Branch and vegetable cultivation waste；
S2, the pH value for the domestic sewage in rural areas being collected into is pre-adjusted to 5-8, later from the top spray of straw preprocessing pond
Or casting enters primary anaerobic fermentation pond via the drainage channel of bottom of pond after sewage infiltrates agricultural product castoff；The rural area
Sanitary sewage refers to farm's excrement waste, town dweller's sanitary sewage and kitchen waste material；
S3, the operating temperature in primary anaerobic fermentation pond is adjusted to 60-70 DEG C, after feed liquid enters primary anaerobic fermentation pond, sent out
Formation S shape flow direction, anaerobism period of the feed liquid in primary anaerobic fermentation pond are under the barrier effect of plug-flow cloth wall inside ferment pond
10-12 days, sufficiently enter multistage anaerobic fermentation vat through tapping channel gravity flow after killing aerobic bacteria, roundworm egg and grass-seed；
S4, it acts on into the feed liquid connecting inner plug-flow cloth wall in multistage anaerobic fermentation vat at this normal temperature fermentation 40-60 days, it
Enter hydrolysis filtering pond afterwards, the biogas that the biogas generated in multistage anaerobic fermentation vat is generated with primary anaerobic fermentation pond converges by the road
Methane purifying system is sent into after collection；
S5, it is filtered step by step into the feed liquid in hydrolysis filtering pond via in pond, eventually by rotary drum grid machine remaining floating material
And thick slag pellet filters out, the feed liquid filtered enters in aeration tank after bioinactivation plus bacterium aeration；The mode of feed liquid bioinactivation
It is utilized in the tapping channel inner wall installation tubular type ultraviolet ray disinfector in hydrolysis filtering pond, feed liquid is while flowing through tapping channel
Through disinfection by ultraviolet light and then achieve the purpose that bioinactivation；
Biogas after desulfurizing and purifying enters marsh gas power generation equipment, the heat generated in Biogas Generator Set power generation process by the road
After being exchanged heat by heat exchanger, it is recycled in straw preprocessing pond and primary anaerobic fermentation pond and recycles by the road.
S6, feed liquid are in aeration tank, add bacterium 24 hours not intermittent aerating, and the liquid fertilizer after aeration enters Liquid Fertilizer storage
Pond is spare；The biological flora being added in aeration tank is selected according to different demands, and its purpose is to make after adding bacterium aeration
Feed liquid forms the liquid fertilizer of different function, improves crop quality to reach and improve yield, the resistance for improving crop, promotes
Crop root growth and the pH value for adjusting soil, reduce soil salt and crab closes the effect of Trace Elements in Soil.
S7, the liquid fertilizer in Liquid Fertilizer storage pool is directly used in the cultivation of lotus pool lotus rhizome.
The marsh gas treatment technology of above embodiments, biogas, natural pond fertilizer yield are big, and biogas slurry and biogas residue is comprehensively utilized, and is integrally built
It has stood and has administered the pollution of aquaculture face using biogas project as tie, solution town dweller's sanitary sewage disorderly discharges, solves crops straw
The stalk edge of a field is burned, and is formed the ecosystem of benign cycle, is improved the comprehensive benefit of biogas project, and for many years biogas is thoroughly solved
The problem that engineering biogas slurry difficulty utilizes.Simple process manages, is easy to operate.Construction investment is few, and operating cost is low.
Claims (10)
1. the marsh gas treatment device based on night soil and stalk characterized by comprising
Straw preprocessing pond: for accommodating the agricultural wastes such as stalk and by living to spray inside it or casting night soil etc.
Sewage completes the process that the agricultural wastes such as stalk are sufficiently infiltrated and decomposed with corruption；Its bottom is provided with drainage channel；
Primary anaerobic fermentation pond: its feeding inlet is connected with the drainage channel of straw preprocessing pond, pre- from stalk for receiving
The sewage of processing pond, inside be laid with plug-flow cloth wall, surrounding and bottom are laid with temperature control device；
Multistage anaerobic fermentation vat: for sending out the further anaerobic fermentation of sewage after primary anaerobism, feeding inlet and primary anaerobism
The discharge port in ferment pond is connected, and plug-flow cloth wall is laid with inside fermentation vat；The feed liquid that multistage anaerobic fermentation vat generates is via pipe
Road is emitted into hydrolysis filtering pond, and the biogas that multistage anaerobic fermentation vat generates is delivered to marsh gas purifying system after collecting via pipeline
System；
Hydrolysis filtering pond: it is connected with the tapping channel of multistage anaerobic fermentation vat, for from multistage anaerobic fermentation vat
Feed liquid carries out secondary aerobic and hydrolysed filtrate；
Methane purifying system: the biogas of primary anaerobic fermentation pond and the generation of multistage anaerobic fermentation vat is collected by pipeline is delivered to natural pond
In gas purification system, the methane purifying system uses existing desulfurization dewatering purification system, by methane purifying system to natural pond
Gas makees desulfurization dewatering purified treatment；
Marsh gas power generation equipment: including Biogas Generator Set, generator and heat recovery apparatus, the biogas after desulfurizing and purifying is by the road
Into Biogas Generator Set, after the heat generated in Biogas Generator Set power generation process is exchanged heat by heat exchanger, loopback by the road
It is recycled into straw preprocessing pond and primary anaerobic fermentation pond；
Add bacterium aeration tank: being connected with the tapping channel in hydrolysis filtering pond, the feed liquid after bioinactivation enters aeration tank, herein
Add different biological floras and aeration；
Liquid Fertilizer storage pool: it is spare that the liquid fertilizer after adding bacterium aeration enters Liquid Fertilizer storage pool.
2. the marsh gas treatment device based on night soil and stalk as described in claim 1, it is characterised in that
The tapping channel inner wall in the hydrolysis filtering pond adds tubular type ultraviolet sterilizer, quilt while feed liquid flows through tapping channel
Disinfection by ultraviolet light is to achieve the purpose that bioinactivation.
3. the marsh gas treatment device based on night soil and stalk as claimed in claim 2, it is characterised in that
The straw preprocessing pond includes processing pond ontology, and the processing pond ontology has for placing the agricultural wastes such as stalk
Support ramp, the bottom of slope of the support ramp is equipped with filter screen, and the lower part of the filter screen is connected with liquid collecting pipeline；It is described
Liquid collecting pipeline discharge outlet is placed in the feeding inlet in the primary anaerobic fermentation pond.
4. the marsh gas treatment device based on night soil and stalk as claimed in claim 3, it is characterised in that
The primary anaerobic fermentation pond includes feeding inlet, discharge port and the gas piping for collecting biogas, in the surrounding of its fermentation vat
And bottom is laid with the temperature control device of heating coil composition；By temperature control device to the feed liquid in the primary anaerobic fermentation pond into
Row heating heating；Inner space between the fermentation vat feeding inlet and discharge port is laid with plug-flow cloth wall, the plug-flow
Cloth wall extends towards using the inner wall in two opposite length directions and has the several vertical of certain intervals distance
Retaining wall, the spacing distance between adjacent two vertical retaining walls constitute the feed liquid passage of S shape.
5. the marsh gas treatment device based on night soil and stalk as claimed in claim 4, it is characterised in that
The hydrolysis filtering pond is successively laid with three-level filter device along feed liquid trend in pond, and the three-level filter device includes
Positioning basket and the filter medium being placed in inside positioning basket；The positioning basket structure of the three-level filter device is identical, no
Filtering with, the whole straw that the filter medium in first level filtering device is wrapped up using mesh bag, in two-stage filter
The broken stalk that medium is wrapped up using mesh bag, the saw that the filter medium in three-level filter device is wrapped up using mesh bag
End；After the three-level filter device, hydrolysis filtering pond end be configured with rotary drum grid machine, the feed liquid after three-stage filtration
Into in Barrate type grilling machine drum, flowed out with radial radiation shape through sieve, the bulky grains such as stalk are trapped back to stalk in water
Pretreatment pool is discharged via the feed liquid of Barrate type grilling machine sieve outflow by tapping channel.
6. the marsh gas treatment technology based on night soil and stalk, is characterized in that, comprising the following specific steps
S1, the agricultural product castoffs such as stalk are deposited into straw preprocessing pond in advance；
S2, the top spray by the domestic sewage in rural areas being collected into from straw preprocessing pond or casting, it is useless that sewage infiltrates agricultural product
After gurry, enter primary anaerobic fermentation pond via the drainage channel of bottom of pond；
S3, the operating temperature in primary anaerobic fermentation pond is adjusted to 60-70 DEG C, after feed liquid enters primary anaerobic fermentation pond, sent out
Formation S shape flow direction, anaerobism period of the feed liquid in primary anaerobic fermentation pond are under the barrier effect of plug-flow cloth wall inside ferment pond
10-12 days, sufficiently enter multistage anaerobic fermentation vat through tapping channel gravity flow after killing aerobic bacteria, roundworm egg and grass-seed；
S4, it acts on into the feed liquid connecting inner plug-flow cloth wall in multistage anaerobic fermentation vat at this normal temperature fermentation 40-60 days, it
Enter hydrolysis filtering pond afterwards, the biogas that the biogas generated in multistage anaerobic fermentation vat is generated with primary anaerobic fermentation pond converges by the road
Methane purifying system is sent into after collection；
S5, it is filtered step by step into the feed liquid in hydrolysis filtering pond via in pond, eventually by rotary drum grid machine remaining floating material
And thick slag pellet filters out, the feed liquid filtered enters in aeration tank after bioinactivation plus bacterium aeration；
Biogas after desulfurizing and purifying enters marsh gas power generation equipment, the heat generated in Biogas Generator Set power generation process by the road
After being exchanged heat by heat exchanger, it is recycled in straw preprocessing pond and primary anaerobic fermentation pond and recycles by the road；
S6, feed liquid are in aeration tank, add bacterium 24 hours not intermittent aerating, and it is standby that the liquid fertilizer after aeration enters Liquid Fertilizer storage pool
With；
S7, the liquid fertilizer in Liquid Fertilizer storage pool is used for agricultural production.
7. the marsh gas treatment technology based on night soil and stalk as claimed in claim 6, is characterized in that,
In the step S1, the agricultural product castoffs such as stalk refer to that corn stover, peanut straw, fruit tree branch and vegetable cultivation are useless
Gurry；
In the step S2, it is 5-8 that the pH value of the domestic sewage in rural areas, which pre-adjusts,；The domestic sewage in rural areas refers to cultivation
Field excrement waste, town dweller's sanitary sewage and kitchen waste material.
8. the marsh gas treatment technology based on night soil and stalk as claimed in claim 6, is characterized in that,
In the step S5, the tapping channel inner wall installation tubular type that the mode of feed liquid bioinactivation is utilized in hydrolysis filtering pond is purple
Outside line sterilizer, feed liquid through disinfection by ultraviolet light and then achieve the purpose that bioinactivation while flowing through tapping channel.
9. the marsh gas treatment technology based on night soil and stalk as claimed in claim 6, is characterized in that,
In the step S6, the biological flora being added in aeration tank is selected according to different demands.
10. the marsh gas treatment technology based on night soil and stalk as claimed in claim 6, is characterized in that,
In the step S7, the liquid fertilizer in Liquid Fertilizer storage pool is directly used in the plantation of lotus pool lotus rhizome.
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| CN201910186223.4A CN109797099A (en) | 2019-03-12 | 2019-03-12 | Marsh gas treatment device and treatment process based on night soil and stalk |
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| CN201910186223.4A CN109797099A (en) | 2019-03-12 | 2019-03-12 | Marsh gas treatment device and treatment process based on night soil and stalk |
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Cited By (1)
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