CN106315979A - Biogas waste liquid treatment device and treatment method - Google Patents
Biogas waste liquid treatment device and treatment method Download PDFInfo
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- CN106315979A CN106315979A CN201610840972.0A CN201610840972A CN106315979A CN 106315979 A CN106315979 A CN 106315979A CN 201610840972 A CN201610840972 A CN 201610840972A CN 106315979 A CN106315979 A CN 106315979A
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- biogas slurry
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 title claims abstract description 24
- 238000011282 treatment Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 82
- 244000005700 microbiome Species 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 239000004576 sand Substances 0.000 claims abstract description 38
- 238000001556 precipitation Methods 0.000 claims abstract description 16
- 238000000855 fermentation Methods 0.000 claims abstract description 9
- 230000004151 fermentation Effects 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 136
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 44
- 239000010865 sewage Substances 0.000 claims description 33
- 238000004062 sedimentation Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000000243 photosynthetic effect Effects 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 18
- 239000000706 filtrate Substances 0.000 claims description 17
- 241000894006 Bacteria Species 0.000 claims description 16
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000003672 processing method Methods 0.000 claims description 12
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 8
- 241001494715 Porphyridium purpureum Species 0.000 claims description 8
- 241000195663 Scenedesmus Species 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002244 precipitate Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 241000193755 Bacillus cereus Species 0.000 claims description 7
- 241000233866 Fungi Species 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 7
- 239000004310 lactic acid Substances 0.000 claims description 7
- 235000014655 lactic acid Nutrition 0.000 claims description 7
- 241000108664 Nitrobacteria Species 0.000 claims description 6
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 6
- 241001478240 Coccus Species 0.000 claims description 3
- 210000000481 breast Anatomy 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000011081 inoculation Methods 0.000 abstract description 2
- 102000004169 proteins and genes Human genes 0.000 abstract description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 2
- 238000005273 aeration Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 241000195493 Cryptophyta Species 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000029553 photosynthesis Effects 0.000 description 3
- 238000010672 photosynthesis Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 206010059410 Faecaluria Diseases 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 231100000001 growth retardation Toxicity 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/341—Consortia of bacteria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/347—Use of yeasts or fungi
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a biogas waste liquid treatment device and treatment method. The device comprises a precipitation pool, a sand filtering pool, a reaction pool and a biogas tank, wherein the precipitation pool is provided with an exhaust opening connected with the biogas tank, and is sequentially provided with an outer wall and N overflow walls which are in concentric structures and are annular sealed from inside to outside; the N is greater than or equal to 2; an overflow opening is formed in the upper part of each overflow wall; a filtering screen is arranged in each overflow opening; the overflow walls in the center position form a primary settling region in a surrounding way; N stages of precipitation regions are formed between the adjacent overflow walls; a biogas liquid storage region is formed between the N-th stage overflow wall and the outer wall; a primary precipitation region feeding opening is correspondingly formed in the upper part of the precipitation pool; the lower parts of the primary to N-th stage precipitation regions are respectively provided with pollution discharging openings; the biogas liquid storage region is connected with a liquid inlet opening formed in the upper part of the sand filtering pool through a pipeline; the reaction pool is connected with a filter liquid outlet formed in the lower part of the sand filtering pool through a pipeline; substances such as N, P and impurity protein in the biogas liquid are consumed in a way of microorganism inoculation and aeration fermentation way, so that the biogas liquid is discharged in a standard reaching way; the pollution on the environment is avoided.
Description
Technical field
The present invention relates to methane waste liquor process field, especially a kind of methane waste liquor processing means and processing method.
Background technology
Plant can produce substantial amounts of fecaluria, feedstuff residue, sewage etc. in breeding process, if discharge unreasonable will
Severe contamination surface water, subsoil water and soil and surrounding air, cause the biggest to the healthy of the mankind and living environment
Impact.Wherein, containing nutrients such as substantial amounts of N, P in the excrement sewage of plant, easily cause body eutrophication, if without
Processing just enters in fish pond and river, the aquatile to Organic Pollution is sensitive will be caused the most dead, thus cause fish
The pool and river are lost and are used function.Aquaculture wastewater, through penetrating into for a long time, can make the nitrate nitrogen in subsoil water or nitrite nitrogen
Concentration increase, thus reduce subsoil water dissolved oxygen content, increase toxic component, cause water quality deterioration to affect water quality, Er Qiegao
The sewage of concentration also can block soil aperture so that Soil ventilation, water penetration decline and harden, salinization, thus reduce soil
Crops are caused serious injury so that it is growth retardation or death by quality, so the waste water of plant is before discharging
Needs process, and biological decomposition is an environmental protection and the processing method of practicality, are carried out point by anaerobic and aerobic biology
Solution processes, it is possible to the Organic substance in degrading waste water effectively, compared to some chemical methodes, processes the less side products produced,
Low cost and easily reach the purpose of harmless emission, is the processing method of more environmental protection.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides one can effectively process methane waste liquor, good reliability, one-tenth
This is the lowest and easily reaches methane waste liquor processing means and the treating method of harmless emission purpose.
In order to realize above-mentioned technical purpose, the technical scheme is that a kind of methane waste liquor processing means, it includes
Sedimentation tank, sand filter, reaction tank and tank for sewage gas, described sedimentation tank is provided with air vent and is connected with tank for sewage gas, described precipitation
Pond is the most sequentially provided with N number of overflow wall and the outer wall of concentric structure ring seal, described N >=2, described each overflow
The overfall that wall top is equipped with, is provided with drainage screen in described overfall, and wherein the overflow wall in bosom is around forming one-level
Settling zone, forms N level settling zone between adjacent overflow wall, form biogas slurry memory block between N level overflow wall and outer wall, described
Sedimentation tank top be correspondingly provided with one-level settling zone charging aperture, described one-level is equipped with sewage draining exit to bottom, N level settling zone, institute
The biogas slurry memory block stated is connected with the inlet pipeline on sand filter top, described reaction tank and the filtrate (liquid of sand filter bottom
Pipeline connects.
Being provided with immersible pump in described reaction tank, described immersible pump is arranged on the central authorities of reaction tank.
The filtration mesh number of described N number of overflow wall top overfall is by first overflow wall to n-th overflow wall successively
Increasing, the described drainage screen in N number of overflow wall is for filtering the solid content in biogas slurry.
Described sand filter is the most sequentially filled with for filtering the little rock layers of biogas slurry, rough sand layer and fine sand layer.
As the processing method of the present invention a kind of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in the biogas slurry flowed in reaction tank and the ratio that microorganism volume ratio is 95～105:1, will
Reaction tank temperature is adjusted to 18～40 DEG C, starts immersible pump simultaneously and carries out mixing and after ventilation treatment 72h, detects water quality, meet
After water discharge standard, open reaction tank discharge outlet will process after biogas slurry discharge, open the filtrate of the bottom of sand filter simultaneously
Gate out switch, the biogas slurry after being filtered by equal-volume flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
Preferably, described step d) inoculate into microorganism be that phototroph and non-photosynthetic heterotrophic microorganism mix
Conjunction forms, and described phototroph is the one in Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria
Above, described non-photosynthetic heterotrophic microorganism is in bacillus cereus, nitrobacteria, sewage fungus, secondary coccus, lactic acid bacteria, yeast
More than one.
Preferably, the reaction tank temperature of described step d) is 26～35 DEG C.
Preferably, the reaction tank PH of described step d) is 6.0～8.0.
Preferably, the reaction tank intensity of illumination of described step d) is 600～15000lux.
Preferably, described step d) is in the ratio that volume ratio is 100:1 of the biogas slurry pumped in reaction tank and microorganism
Inoculate respectively into microorganism.
By above-mentioned technical scheme, the invention have the benefit that by sedimentation tank, biogas slurry raw material being carried out solid-liquid divides
From, the biogas produced that simultaneously fermented by remnants recycles, and the biogas slurry after fermentation precipitates through the multistage solid-liquid of overflow wall
After separating treatment, then being carried out being filtered so that biogas slurry by sand filter and fully filtered, the biogas slurry after filtration is delivered to reaction tank
Process, utilize the processing mode of microbe inoculation, the nutrient substance such as N, the P in biogas slurry are carried out a biological disposal upon, makes biogas slurry
Discharge again after can reaching the standard of water discharge, in this way, biogas slurry treatment process can not only be made more environmentally-friendly
Safety, additionally it is possible to the biogas slurry being newly added carries out continuous treatment, saves manpower and reduces processing cost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated:
Fig. 1 is the enforcement schematic diagram of the present invention；
Fig. 2 is the top view cross section simplified schematic diagram of sedimentation tank of the present invention.
Detailed description of the invention
As shown in one of Fig. 1 to 2, the present invention includes sedimentation tank 1, sand filter 2, reaction tank 3 and tank for sewage gas 4, and described is heavy
Pond, shallow lake 1 is provided with air vent 11 and is connected with tank for sewage gas 4, and described sedimentation tank 1 is the most sequentially provided with concentric structure annular envelope
The N number of overflow wall 12 closed and outer wall 13, described N >=2, the overfall 121 that described each overflow wall 12 top is equipped with, institute
Being provided with drainage screen 122 in the overfall 121 stated, wherein the overflow wall in bosom is around forming one-level settling zone 15, and adjacent overflows
Form N level settling zone between stream wall, form biogas slurry memory block 16 between N level overflow wall and outer wall 13, on described sedimentation tank 1
Portion is correspondingly provided with one-level settling zone 15 charging aperture 17, and described one-level is equipped with sewage draining exit 14 to bottom, N level settling zone, described
Biogas slurry memory block 16 is connected with inlet 25 pipeline on sand filter 2 top, described reaction tank 3 and the filtrate of sand filter 2 bottom
Export 24 pipelines to connect.
Biogas slurry after filtering for the ease of sand filter 2 is delivered to reaction tank 3 and processes, and reaction tank 3 has with sand filter 2
Difference.Being provided with immersible pump 31 in described reaction tank 3, described immersible pump 31 is installed on reaction tank 3 central authorities, can will react after startup
Biogas slurry in pond 3 carries out mixing and be passed through air makes reaction tank 3 Air Exposure, reaches more preferably biogas slurry treatment effect.
In order to remove the residual solids float of biogas slurry in sedimentation tank 1, described N number of overflow wall 12 top overfall 121
Drainage screen 122 mesh number increased successively to n-th overflow wall by first overflow wall, the described drainage screen in N number of overflow wall
For filtering the solid content in biogas slurry, make biogas slurry a large amount of by will not leave behind during one-level settling zone overflow to N level settling zone
Precipitation, therefore sedimentation tank 1 other settling zones in addition to one-level settling zone 15 need not often clear up, and saves manpower.
Described sand filter 2 is the most sequentially filled with for filtering the little rock layers 21 of biogas slurry, rough sand layer 22 and fine sand
Layer 23, utilizes the mode of three layer filtration, the biogas slurry in biogas slurry memory block 16 is again filtered so that it is after entering reaction tank 3
Can preferably carry out microbial treatments, it is to avoid the situation that after process, biogas slurry is still muddy occurs.
As the processing method of the present invention a kind of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in the biogas slurry flowed in reaction tank and the ratio that microorganism volume ratio is 95～105:1, will
Reaction tank temperature is adjusted to 18～40 DEG C, starts immersible pump simultaneously and carries out mixing and after ventilation treatment 72h, detects water quality, meet
After water discharge standard, open reaction tank discharge outlet will process after biogas slurry discharge, open the filtrate of the bottom of sand filter simultaneously
Gate out switch, the biogas slurry after being filtered by equal-volume flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
In order to make the microorganism in reaction tank be able to maintain that balance and play the most collaborative effect, described step d) connects
Kind of the microorganism entered is phototroph and non-photosynthetic heterotrophic microorganism mixes, and described phototroph is
More than one in Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria, wherein Herba Spirodelae and micro-duckweed can swim in
Liquid level, scenedesmus, Porphyridium cruentum, chlorella and photosynthetic bacteria are suspended in biogas slurry, utilize the carbon dioxide in sunlight and air to carry out
Photosynthesis, absorbs and the pollutant such as N, P of removing in biogas slurry, discharges oxygen simultaneously and grows for self and non-photosynthesizing microorganism
Required；Described non-photosynthetic heterotrophic microorganism is in bacillus cereus, nitrobacteria, sewage fungus, secondary coccus, lactic acid bacteria, yeast
More than one, utilize non-photosynthesizing microorganism degraded biogas slurry in foreign protein and other float and consume photosynthetic organism produce
Oxygen, discharge carbon dioxide, the carbon dioxide that non-photosynthetic heterotrophic microorganism is discharged can supply again photosynthetic organism and enter
Row photosynthesis and growth are required.
Owing to, under condition of different temperatures, the active degree that microorganism shows also has different difference, it is preferred that described
Reaction tank 3 temperature of step d) is 26～35 DEG C, makes the microorganism in reaction tank 3 more active, improves its reaction degradation capability,
May advantageously facilitate the process of biogas slurry.
Under the conditions of different PH, the active degree of microorganism and there is also different difference, in order to make microorganism
It is in preferably state, it is preferred that in the reaction tank 3 of described step d), PH is 6.0～8.0.
Owing to the microorganism in reaction tank 3 has photoautotrophy and non-photosynthetic heterotrophism two types, by natural light or daylight
The photosynthesis of phototroph all can be played good assosting effect by lamp, but natural lighting is affected by weather
Relatively big, in order to make reaction tank 3 can one relatively stable controlled under conditions of react, it will usually daylight lamp is set and carries out
Fill-in light shines, it is preferred that reaction tank 3 intensity of illumination of described step d) is 600～15000lux.
Preferably, described step d) is in the ratio that volume ratio is 100:1 of the biogas slurry pumped in reaction tank 3 and microorganism
Inoculating respectively into microorganism, every kind of microorganism is all added by biogas slurry and microorganism volume ratio 100:1, makes in reaction tank 3
The content of microorganism maintains basicly stable state.
In order to ensure quality and the efficiency of reaction tank continuous processing, it is also possible to according to reaction tank biogas slurry in some cycles
Treating capacity, inoculate respectively into the most cultured phototroph in the ratio of biogas slurry and microorganism volume ratio 100:1 and
Non-photosynthetic heterotrophic microorganism, makes reaction tank content of microorganism in whole processing procedure be in higher level, the company of maintenance
The quality and quantity of microorganism in continuous system for handling.
Embodiment 1
A kind of processing method of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculating into microorganism respectively in biogas slurry and the ratio that microorganism volume ratio is 95:1 flowed in reaction tank, described is micro-
Biological by Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria, bacillus cereus, nitrobacteria, sewage fungus, secondary ball
Algae, lactic acid bacteria, yeast equal proportion mix, and reaction tank temperature is adjusted to 40 DEG C, and PH is adjusted to 8.0, and intensity of illumination is adjusted
Joint is 15000lux, starts immersible pump simultaneously and carries out mixing and after ventilation treatment 72h, detects water quality, after meeting water discharge standard,
Open reaction tank discharge outlet will process after biogas slurry discharge, open simultaneously sand filter bottom filtrate (liquid switch, will wait
Biogas slurry after volume filtration flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
Embodiment 2
A kind of processing method of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in biogas slurry and the ratio that microorganism volume ratio is 100:1 flowed in reaction tank, described
Microorganism is by Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, photosynthetic bacteria, bacillus cereus, sewage fungus, secondary ball algae, lactic acid bacteria, ferment
Female bacterium equal proportion mixes, and reaction tank temperature is adjusted to 26 DEG C, and PH is adjusted to 7.0, and intensity of illumination is adjusted to 7800lux,
Start immersible pump to carry out mixing and after ventilation treatment 72h simultaneously, detect water quality, after meeting water discharge standard, open reaction tank
Biogas slurry after discharge outlet will process is discharged, and opens the filtrate (liquid switch of the bottom of sand filter, after being filtered by equal-volume simultaneously
Biogas slurry flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
Embodiment 3
A kind of processing method of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in biogas slurry and the ratio that microorganism volume ratio is 105:1 flowed in reaction tank, described
Microorganism is by Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria, bacillus cereus, nitrobacteria, sewage fungus, pair
Ball algae, lactic acid bacteria, yeast equal proportion mix, and reaction tank temperature is adjusted to 18 DEG C, and PH is adjusted to 6.0, intensity of illumination
It is adjusted to 600lux, starts immersible pump simultaneously and carry out mixing and after ventilation treatment 72h, detect water quality, after meeting water discharge standard,
Open reaction tank discharge outlet will process after biogas slurry discharge, open simultaneously sand filter bottom filtrate (liquid switch, will wait
Biogas slurry after volume filtration flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
Embodiment 4
A kind of processing method of methane waste liquor processing means, it comprises the following steps:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in biogas slurry and the ratio that microorganism volume ratio is 100:1 flowed in reaction tank, described
Microorganism is by Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria, bacillus cereus, nitrobacteria, sewage fungus, pair
Ball algae, lactic acid bacteria, yeast equal proportion mix, and reaction tank temperature is adjusted to 35 DEG C, and PH is adjusted to 7.0, intensity of illumination
It is adjusted to 7800lux, starts immersible pump simultaneously and carry out mixing and after ventilation treatment 72h, detect water quality, meet water discharge standard
After, open reaction tank discharge outlet will process after biogas slurry discharge, open simultaneously sand filter bottom filtrate (liquid switch, will
Biogas slurry after equal-volume filters flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
The foregoing describe the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that this is only to lift
Example illustrates, this embodiment, on the premise of without departing substantially from the principle of the present invention and essence, can be done by those skilled in the art
Go out various changes or modifications, but these changes and amendment each fall within protection scope of the present invention.
Claims (10)
1. a methane waste liquor processing means, it is characterised in that: it includes sedimentation tank, sand filter, reaction tank and tank for sewage gas, described
Sedimentation tank be provided with air vent and be connected with tank for sewage gas, described sedimentation tank is the most sequentially provided with concentric structure ring seal
N number of overflow wall and outer wall, described N >=2, the overfall that described each overflow wall top is equipped with, described overfall
Inside being provided with drainage screen, wherein the overflow wall in bosom is around forming one-level settling zone, forms N level precipitation between adjacent overflow wall
District, forms biogas slurry memory block between n-th overflow wall and outer wall, described sedimentation tank top is correspondingly provided with the charging of one-level settling zone
Mouthful, described one-level to bottom, N level settling zone is equipped with the inlet on sewage draining exit, described biogas slurry memory block and sand filter top
Pipeline connects, and described reaction tank is connected with the filtrate (liquid pipeline of sand filter bottom.
A kind of methane waste liquor processing means the most according to claim 1, it is characterised in that: it is provided with latent in described reaction tank
Water pump, described immersible pump is arranged on the central authorities of reaction tank.
A kind of methane waste liquor processing means the most according to claim 1, it is characterised in that: described N number of overflow wall top
The filtration mesh number of overfall is increased to n-th overflow wall successively by first overflow wall, the described filtration in N number of overflow wall
Net is for filtering the solid content in biogas slurry.
A kind of methane waste liquor processing means the most according to claim 1, it is characterised in that: described sand filter is from the bottom to top
Sequentially it is filled with for filtering the little rock layers of biogas slurry, rough sand layer and fine sand layer.
The processing method of a kind of methane waste liquor processing means the most according to claim 2, it is characterised in that: it includes following
Step:
A) by charging aperture, the one-level settling zone of biogas slurry treatment raw material addition to sedimentation tank is carried out primary precipitation process, by remnants
The biogas that fermentation produces is delivered to tank for sewage gas by air vent and stores；
B) in sedimentation tank, the solid content of biogas slurry is deposited at the bottom of pond, and limpider biogas slurry accumulates the overfall of overflow wall, through filtering
Overflow to next stage settling zone after net filtration, next stage settling zone again precipitate and filter, until biogas slurry overflow to N
Level settling zone after, the less biogas slurry of solid content through n-th overflow wall overfall filter after overflow to biogas slurry memory block, biogas slurry
After filtrating overflow, by the biogas residue produced by one-level to bottom, N level settling zone sewage draining exit discharge, after biogas residue is discharged, heavily
Multiple step a)～b)；
C) biogas slurry of biogas slurry memory block being filtered by Pipeline transport to sand filter, biogas slurry is passed through after heavy filtration through filtrate
Outlet flows into reaction tank；
D) inoculate into microorganism respectively in the biogas slurry flowed in reaction tank and the ratio that microorganism volume ratio is 95～105:1, will
Reaction tank temperature is adjusted to 18～40 DEG C, starts immersible pump simultaneously and carries out mixing and after ventilation treatment 72h, detects water quality, meet
After water discharge standard, open reaction tank discharge outlet will process after biogas slurry discharge, open the filtrate of the bottom of sand filter simultaneously
Gate out switch, the biogas slurry after being filtered by equal-volume flows into reaction tank, makes the biogas slurry volume in reaction tank maintain dynamic equilibrium.
The processing method of a kind of methane waste liquor processing means the most according to claim 5, it is characterised in that: described step
D) inoculate into microorganism be phototroph and non-photosynthetic heterotrophic microorganism mixes, the micro-life of described photoautotrophy
Thing is more than one in Herba Spirodelae, micro-duckweed, scenedesmus, Porphyridium cruentum, chlorella, diatom, photosynthetic bacteria, the described micro-life of non-photosynthetic heterotrophism
Thing is more than one in bacillus cereus, nitrobacteria, sewage fungus, secondary coccus, lactic acid bacteria, yeast.
The treating method of a kind of methane waste liquor processing means the most according to claim 5, it is characterised in that: described step
D) reaction tank temperature is 26～35 DEG C.
The treating method of a kind of methane waste liquor processing means the most according to claim 5, it is characterised in that: described step
D) reaction tank PH is 6.0～8.0.
The treating method of a kind of methane waste liquor processing means the most according to claim 5, it is characterised in that: described step
D) reaction tank intensity of illumination is 600～15000lux.
The treating method of a kind of methane waste liquor processing means the most according to claim 5, it is characterised in that: described step
Suddenly d) inoculate into microorganism respectively in the ratio that volume ratio is 100:1 of the biogas slurry pumped in reaction tank and microorganism.
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