CN105800839A - Biogas residue liquid solid-liquid separation process - Google Patents
Biogas residue liquid solid-liquid separation process Download PDFInfo
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- CN105800839A CN105800839A CN201410830565.2A CN201410830565A CN105800839A CN 105800839 A CN105800839 A CN 105800839A CN 201410830565 A CN201410830565 A CN 201410830565A CN 105800839 A CN105800839 A CN 105800839A
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- biogas residue
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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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- 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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- Treatment Of Sludge (AREA)
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Abstract
The present invention discloses a biogas residue liquid solid-liquid separation process, and belongs to the technical field of agricultural waste utilization. The process completely separates the biogas residue liquid produced by using Chinese herbal medicine residues as the main raw material of biogas fermentation, and comprises the steps of shunting, settling, and purification. The biogas residue liquid is treated thoroughly, the process does not cause secondary pollution, is safe and efficient in separation, and realizes automated control. The invention improves the utilization of biogas residue and biogas liquid, organically integrates a variety of industrial chains with biogas residue liquid solid-liquid separation technology as the basis; through manual analysis of industry needs and market value, the flow directions of biogas residue and biogas liquid are timely and reasonably regulated to organically combine with follow-up industry chain, recover cost as quickly as possible, and create economic value.
Description
Technical field
The invention belongs to agricultural wastes application technology as the second resource field, more particularly to a kind of biogas residue liquid solid-liquid separation process.
Background technology
At present, the discarded amount of China's Chinese medicine slag increases day by day, traditional treatment method causes the significant wastage of resource and the severe contamination of environment, and Chinese medicine slag contains abundant organic matter and nutritional labeling, being a kind of high-quality biomass material, how reasonably disposing and utilizing Chinese medicine slag is realize a urgent problem in modernization of Chinese medicine process.Biogas is the renewable clear energy sources of high heating value produced by fermentable decomposing organism organic matter, and utilizing biomass material to produce biogas technology is a kind of main path that current organic waste is innoxious, resource, energy process.Therefore; utilize Chinese medicine slag as marsh gas raw materials; it is possible not only to solve the problem of environmental pollution of a large amount of Chinese medicine slag of China; biomass resource is made to obtain deep development and recycle; and the biogas produced can replace commercial energy as industrial fuel; save substantial contribution for Chinese medicine enterprise, meanwhile, to alleviating energy crisis, preserve the ecological environment, to reduce the aspects such as disease generation all significant.
Along with the continuous popularization of biogas engineering, the continuous expansion of quantity size, biogas residue and biogas liquid processes bad, can cause secondary pollution, and this does not substantially meet the requirement that biogas engineering is built.Biogas residue and biogas liquid in methane-generating pit out after, not do not separate at the beginning, only biogas slurry, and biogas residue be suspended in the inside.Domestic being typically all employing screw extruding type solid-liquid separator, biogas residue is separated from biogas slurry, biogas residue at this moment can be used to do solid biologic fertilizer, and biogas slurry is for doing raw material or the farmland fertilization of biogas slurry fertilizer.Because one-level solid-liquid separating machine mesh size is typically in 0.75mm, biogas slurry after screw extrusion also remains certain float, two grades of solid-liquid separation need to be carried out by solid-liquid separating machine supporting in organic commercial fertilizer system equipment, two grades of solid-liquid separating machine screen-apertures are typically in below 0.25mm, get rid of bulky grain float, make pig and chicken feed concentrate.If biogas slurry is used to directly do field irrigation, what do not separate is too thin, can directly dilute use.
Patent of invention CN101723496A discloses the solid-liquid separating method of a kind of biogas residue liquid, the method utilizes biological flocculant to pull solid matter out with the string bag after processing biogas residue liquid, soil conditioner is made through dehydration, and remaining liq directly sprays crops and uses partly as fertilizer, the method string bag carries out solid-liquid separation, and technology content is on the low side, and separating effect is undesirable, separating product utilization rate relatively low, economic benefit has much room for improvement；nullPatent of invention CN101407826B discloses large scale stalk anaerobic fermentation technique and device，This technique includes straw pretreatment、Anaerobic fermentation、Separating step，The integrated device of this segregation apparatus，Wherein separating step is that biogas residue liquid is sent into anaerobe segregation apparatus，Separation obtains anaerobe liquid and Straw manures，Isolate anaerobe liquid and be used further to another circulation technology step，This process cycles utilizes anaerobe liquid to carry out persistence production，But persistence is poor，And later stage biogas slurry treatment is perfect not，Along with cycle-index increases to a certain degree，Under the premise that anaerobic ferment devices total measurement (volume) is constant，Can affect and even reduce production rate of methane，Even if factor of created gase is constant in maintenance anaerobic ferment devices，But thalline and other composition increase in Straw manures，Quality changes，Effective fertilizer composition changes therewith，Cause that fertilizer efficiency is unclear，Inconvenience directly uses；CN104030482A discloses the processing method of a kind of biogas residue liquid, the method is collected through biogas residue liquid, flocculation, stand, solid-liquid separation, dehydration, the step of purified treatment processes in integrated apparatus, wherein utilize WCF biological flocculant composite polymeric aluminum chloride, perlite powder sedimentation solid matter, the raw material of rest chamber organic adsorption layer mainly adopts Graphene, it is combined into cleanser with sulphuric acid and weathered coal and carries out purified treatment, the method is relatively costly, especially Graphene is as a kind of new high-tech material, expensive, higher in the difficulty being currently used for biogas residue liquid processed, and the method biogas residue and biogas liquid subsequent treatment shortcoming, the utilization rate of biogas residue and biogas liquid is not high, economic benefit is bad；Patent of invention CN102120634A discloses the method for the continuous flocculation deposition seperation of a kind of biogas residue liquid, the method utilizes chitin to flocculate as biological flocculant, adopting sedimentation centrifuge to carry out solid-liquid separation, active carbon adsorption column desolventing technology, the method treatment scale is little, extend the process time, solid-liquid separation efficiency is low, and dehydration rate is low, and the biogas residues utilization rate of generation is low, as the inefficiency of fertilizer or pesticide etc., deficiency in economic performance.
Summary of the invention
The technical problem to be solved is for the problem of Shortcomings in the biogas residue liquid separating technology utilizing Chinese medicine slag anaerobic fermentation to produce after producing biogas, it is provided that a kind of biogas residue liquid solid-liquid separation process.
To achieve these goals, the present invention is achieved by the following technical solutions:
A kind of biogas residue liquid solid-liquid separation process, including step in detail below:
(1) shunting: the biogas residue liquid produced after carrying out anaerobic fermentation production biogas with Chinese medicine slag for raw material, effusion meter is passed through after discharging from anaerobic fermentation tank, the biogas residue liquid of 10% fluid volume is sent into anaerobic fermentation tank recycle, the biogas residue liquid of 5% fluid volume sends into anaerobe segregation apparatus, and all the other fluids send into biogas residue liquid storage tank；
Wherein anaerobe segregation apparatus separates and obtains anaerobe liquid and Chinese medicine slag solid matter, and anaerobe liquid processes through vacuum lyophilization and makes anaerobism microbial inoculum product, and liquid and the Chinese medicine slag solid matter of the generation after process are each respectively fed to biogas residue liquid storage tank；
(2) sedimentation: the biogas residue liquid in batch type biogas residue liquid storage tank, microbial flocculant is added in the stirring phase, stirring is stopped in the intermission, stand, by solid-liquid separating equipment separation biogas residue and biogas slurry, collecting biogas residue, biogas slurry flows through effusion meter by conveyance conduit, isolating the biogas slurry of 15～85% flow volume, all the other biogas slurries send into three-dimensional electrolysis groove；
After biogas residue therein is collected, by mass, the biogas residue of 20%～80% is as animal feed raw material, add other helper component and make microorganism health-protection animal feed, all the other biogas residue are added other helper component as organic fertilizer raw material and are made microorganism organic granular fertilizer, and isolated biogas slurry is concentrated makes environment affinity type pesticide or liquid foliage fertilizer product；
(3) purify: collect the waste liquid in above-mentioned steps by pipeline and residue biogas slurry is sent into three-dimensional electrolysis groove and carried out three-dimensional electrode electrolysis process, be then fed into tank or directly discharge；
Wherein the 3rd tassement polaire of three-dimensional electrolysis groove is compound, and containing activated carbon granule in compound.
Described anaerobism microbial inoculum product can be preserved to give over to personal, or as commodity selling to increase economic efficiency, cost recovery.
Described batch type includes stirring phase and intermission, stirring phase duration 2～4h, stirring is still sustainable after starting inputs biogas residue liquid from anaerobic fermentation tank to biogas residue liquid storage tank, at the uniform velocity reduces biogas residue liquid input rate, stop input during to stirring phase 3/4 time point after stirring phase 1/2 time point；Intermission duration 1.5～2h, including standing phase and separation output phase, stand phase duration and account for the 2/3 of the intermission, separate output phase duration and account for the 1/3 of the intermission, the separation output phase inputs biogas residue liquid to biogas residue liquid storage tank after terminating again, namely enters next batch type circulation.
The feeding mode of described microbial flocculant adopts continuous adding type, specifically feeds intake after the stirring phase starts, and stops feeding intake when continuing to stirring phase 3/4 time point.
Described biogas residue and the biogas slurry being introduced into three-dimensional electrolysis groove according to industry requirement and market value, can adjust consumption and flow, make various product respectively, to increase economic efficiency as far as possible, and cost recovery.
Described activated carbon content at least accounts for the 15% of the 3rd pole mixed fillers total amount.
Beneficial effects of the present invention: the biogas residue liquid that (1) Chinese crude drug residue is produced by the present invention as biogas fermentation main material has been kept completely separate, biogas residue liquid processes thoroughly, does not result in secondary pollution, and separation process is safe and efficient, it is achieved that Automated condtrol；(2) improve the utilization rate of biogas residue and biogas slurry, based on biogas residue liquid solid-liquid separation process, organic integration multi industries chain, by manual analysis industry requirement and market value, rationally regulation and control biogas residue and biogas liquid flows in good time, organically combines Follow-up Industry chain, quick cost recovery as far as possible, creates economic worth.
Detailed description of the invention
Embodiment
The biogas residue liquid produced after carrying out anaerobic fermentation production biogas with Chinese medicine slag for raw material, effusion meter is passed through after discharging from anaerobic fermentation tank, the biogas residue liquid of 10% fluid volume is sent into anaerobic fermentation tank recycle, the biogas residue liquid of 5% fluid volume sends into anaerobe segregation apparatus, and all the other fluids send into biogas residue liquid storage tank；Wherein anaerobe segregation apparatus separates and obtains anaerobe liquid and Chinese medicine slag solid matter, and anaerobe liquid processes through vacuum lyophilization and makes anaerobism microbial inoculum product, and liquid and the Chinese medicine slag solid matter of the generation after process are each respectively fed to biogas residue liquid storage tank.
Biogas residue liquid in batch type biogas residue liquid storage tank, stirs phase duration 4h, and stirring is still sustainable after starting inputs biogas residue liquid from anaerobic fermentation tank to biogas residue liquid storage tank, at the uniform velocity reduces biogas residue liquid input rate, stop input during to 3h after 2h；nullIntermission duration 1.5h，Including standing phase and separation output phase，Standing phase duration 1h，The separation output phase inputs biogas residue liquid to biogas residue liquid storage tank after terminating again，Namely next batch type circulation is entered，Microbial flocculant Pullulan is added in the stirring phase，Feed intake after the stirring phase starts，Stop when continuing to stirring phase 3h feeding intake，Stirring is stopped in the intermission，Stand，By solid-liquid separating equipment separation biogas residue and biogas slurry，Collect biogas residue，Biogas slurry flows through effusion meter by conveyance conduit，Isolate the biogas slurry of 75% flow volume，All the other biogas slurries send into three-dimensional electrolysis groove，After biogas residue therein is collected，By mass，The biogas residue of 55% is as animal feed raw material，Add other helper component and make microorganism health-protection animal feed，All the other biogas residue are added other helper component as organic fertilizer raw material and are made microorganism organic granular fertilizer，Isolated biogas slurry is concentrated makes liquid foliage fertilizer product.
Collect the waste liquid in above-mentioned steps by pipeline and residue biogas slurry is sent into three-dimensional electrolysis groove and carried out three-dimensional electrode electrolysis process, it is then fed into tank or directly discharges, wherein the 3rd tassement polaire of three-dimensional electrolysis groove is compound, and containing activated carbon granule in compound, content accounts for the 25% of the 3rd pole mixed fillers total amount.
Described anaerobism microbial inoculum product storage, part gives over to personal, partly as commodity selling.
Above-described embodiment is preferred embodiment, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (6)
1. a biogas residue liquid solid-liquid separation process, it is characterised in that: include step in detail below:
(1) shunting: the biogas residue liquid produced after carrying out anaerobic fermentation production biogas with Chinese medicine slag for raw material, effusion meter is passed through after discharging from anaerobic fermentation tank, the biogas residue liquid of 10% fluid volume is sent into anaerobic fermentation tank recycle, the biogas residue liquid of 5% fluid volume sends into anaerobe segregation apparatus, and all the other fluids send into biogas residue liquid storage tank；
Wherein anaerobe segregation apparatus separates and obtains anaerobe liquid and Chinese medicine slag solid matter, and anaerobe liquid processes through vacuum lyophilization and makes anaerobism microbial inoculum product, and liquid and the Chinese medicine slag solid matter of the generation after process are each respectively fed to biogas residue liquid storage tank；
(2) sedimentation: the biogas residue liquid in batch type biogas residue liquid storage tank, microbial flocculant is added in the stirring phase, stirring is stopped in the intermission, stand, by solid-liquid separating equipment separation biogas residue and biogas slurry, collecting biogas residue, biogas slurry flows through effusion meter by conveyance conduit, isolating the biogas slurry of 15～85% flow volume, all the other biogas slurries send into three-dimensional electrolysis groove；
After biogas residue therein is collected, by mass, the biogas residue of 20%～80% is as animal feed raw material, add other helper component and make microorganism health-protection animal feed, all the other biogas residue are added other helper component as organic fertilizer raw material and are made microorganism organic granular fertilizer, and isolated biogas slurry is concentrated makes environment affinity type pesticide or liquid foliage fertilizer product；
(3) purify: collect the waste liquid in above-mentioned steps by pipeline and residue biogas slurry is sent into three-dimensional electrolysis groove and carried out three-dimensional electrode electrolysis process, be then fed into tank or directly discharge；
Wherein the 3rd tassement polaire of three-dimensional electrolysis groove is compound, and containing activated carbon granule in compound.
2. a kind of biogas residue liquid solid-liquid separation process as claimed in claim 1, it is characterized in that: described batch type includes stirring phase and intermission, stirring phase duration 2～4h, stirring is still sustainable after starting inputs biogas residue liquid from anaerobic fermentation tank to biogas residue liquid storage tank, at the uniform velocity reduce biogas residue liquid input rate after stirring phase 1/2 time point, during to stirring phase 3/4 time point, stop input；Intermission duration 1.5～2h, including standing phase and separation output phase, stand phase duration and account for the 2/3 of the intermission, separate output phase duration and account for the 1/3 of the intermission, the separation output phase inputs biogas residue liquid to biogas residue liquid storage tank after terminating again, namely enters next batch type circulation.
3. a kind of biogas residue liquid solid-liquid separation process as claimed in claim 1, it is characterised in that: the feeding mode of described microbial flocculant adopts continuous adding type, specifically feeds intake after the stirring phase starts, and stops feeding intake when continuing to stirring phase 3/4 time point.
4. a kind of biogas residue liquid solid-liquid separation process as claimed in claim 1, it is characterised in that: described activated carbon content at least accounts for the 15% of the 3rd pole mixed fillers total amount.
5. biogas residue liquid solid-liquid separation process as claimed in claim 1 a kind of, it is characterised in that: described anaerobism microbial inoculum product can be preserved to give over to personal, or as commodity selling.
6. a kind of biogas residue liquid solid-liquid separation process as claimed in claim 1, it is characterised in that: described biogas residue and the biogas slurry being introduced into three-dimensional electrolysis groove according to industry requirement and market value, can adjust consumption and flow, make Related product respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410830565.2A CN105800839A (en) | 2014-12-29 | 2014-12-29 | Biogas residue liquid solid-liquid separation process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241998A (en) * | 2016-09-26 | 2016-12-21 | 重庆工商大学 | A kind of Chinese medicine dreg prepares the method for natural composite flocculation agent |
| CN111548199A (en) * | 2020-04-29 | 2020-08-18 | 广东石油化工学院 | Biogas slurry and biogas residue multistage treatment device and method |
-
2014
- 2014-12-29 CN CN201410830565.2A patent/CN105800839A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241998A (en) * | 2016-09-26 | 2016-12-21 | 重庆工商大学 | A kind of Chinese medicine dreg prepares the method for natural composite flocculation agent |
| CN106241998B (en) * | 2016-09-26 | 2019-02-19 | 重庆工商大学 | A method of natural composite flocculation agent is prepared with Chinese medicine dreg |
| CN111548199A (en) * | 2020-04-29 | 2020-08-18 | 广东石油化工学院 | Biogas slurry and biogas residue multistage treatment device and method |
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Application publication date: 20160727 |
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