CN208907121U - A kind of continuous processing system handling fermentation biogas slurry based on chlorella - Google Patents
A kind of continuous processing system handling fermentation biogas slurry based on chlorella Download PDFInfo
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- CN208907121U CN208907121U CN201820657003.6U CN201820657003U CN208907121U CN 208907121 U CN208907121 U CN 208907121U CN 201820657003 U CN201820657003 U CN 201820657003U CN 208907121 U CN208907121 U CN 208907121U
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- chlorella
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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
Abstract
The utility model discloses a kind of continuous processing systems that fermentation biogas slurry is handled based on chlorella, including biogas slurry pretreatment unit, chlorella cultivates unit and chlorella harvests unit, biogas slurry pretreatment unit includes fermentor, biogas slurry conditioning tank, light electrolysis tank, Fenton oxidation tank, neutralization precipitation pond, and decoloration biogas slurry tank, it includes several tubular type bioreactors that chlorella, which cultivates unit, the reactor includes three feed inlets, it is respectively used to input bead algae culturing liquid, cleaning solution through decoloration biogas slurry tank discharge, and gas, it includes centrifuge that chlorella, which harvests unit, centrifuge is connected to the discharge port of tubular type bioreactor, chlorella algae slurry and the purified filtered fluid of chlorella are obtained after centrifuge is handled.For the pretreated biogas slurry of the utility model for cultivating chlorella, fermentation biogas slurry can be effectively treated in chlorella bioreactor, can reach agricultural irrigation water quality standard in conjunction with artificial wetland treatment, the chlorella of culture has significant economic value.
Description
Technical field
The utility model relates to aquaculture waste process field, specifically a kind of company that fermentation biogas slurry is handled based on chlorella
Continuous processing system.
Background technique
Along with the rapid development of the intensive livestock and poultry breeding industry in China, farm and its surrounding enviroment problem become increasingly conspicuous into
To restrict one of the principal element that animal husbandry further develops.To prevent the pollution of the environment, ensures people, animal health, promote animal husbandry
Sustainable development, make in HJ/T81-2001 " livestock and poultry breeding industry pollution prevention technique specification " relevant regulations " feces of livestock and poultry into
Row biogas fermentation should realize comprehensive utilization to biogas residue, biogas slurry as far as possible, while avoid generating new pollution ".
For waste biogas residue and biogas slurry that biogas fermentation generates, the former can directly make soil and fertilizer, and the latter is contained due to it
Have the major pollutants such as a large amount of nitrogen, phosphorus, BOD, COD, FeS, SS, heavy metal, need to carry out certain processing just can outlet, otherwise can
Cause a series of problem of environmental pollutions such as water eutrophication.
Chlorella is a kind of green alga that the mankind are separately cultured earliest, the study found that it have degradable organic pollutant, efficiently
The functions such as heavy metal and absorbed nitrogen phosphorus are adsorbed, and its speed of growth is fast, using luminous energy by inorganic carbon (carbon dioxide or carbon
Hydrochlorate) it is converted into carbohydrate, photosynthetic efficiency is 10 times of general higher plant or so, is expected to become emission reduction dioxy
Change the pioneer of carbon.Chlorella also contains good nutritive value, and protein quality is high, has fatty, dimension life abundant
Element and microelement are the preferred raw materials for preparing animal feeding-stuff.
Therefore, fermentation biogas slurry is handled using chlorella, both fermentation biogas slurry can be realized by the metabolism of chlorella
Safe handling, and economic value can be realized by recycling algae slurry processing animal feeding-stuff.Meanwhile in conjunction with the current animal husbandry hair in China
Show shape, the continuous system future for handling fermentation biogas slurry based on chlorella has a vast market Utilization prospects.
Utility model content
The purpose of this utility model is to provide a kind of continuous processing systems that fermentation biogas slurry is handled based on chlorella, at this
Reason system will not generate secondary pollution to environment, and entire treatment process is simple and easy.
For this purpose, the utility model provides a kind of continuous system for handling fermentation biogas slurry based on chlorella, including biogas slurry is pre-
Processing unit, chlorella culture unit and chlorella harvest unit, are connected between each structures by pipeline, the biogas slurry is located in advance
Reason unit according to process sequence successively include fermentor, biogas slurry conditioning tank, light electrolysis tank, Fenton oxidation tank, neutralization precipitation pond,
And decoloration biogas slurry tank, wherein three feed inlets are arranged in the biogas slurry conditioning tank, respectively with biogas slurry outlet, the acid of fermentor
Tank is connected to water pot, and two feed inlets are arranged in the neutralization precipitation pond, is connected to respectively with Fenton oxidation tank and flocculation aid tank,
In, alkali tank is disposed between Fenton oxidation tank and neutralization precipitation pond, the chlorella culture unit includes several tubular type light
Bioreactor, the tubular type bioreactor include three feed inlets, are respectively used to input bead algae culturing liquid, through decolourizing
The cleaning solution and gas of biogas slurry tank discharge, the chlorella harvesting unit includes centrifuge, the centrifuge and tubular type photoproduction
The discharge port of object reactor is connected to, and chlorella algae slurry and the purified filtered fluid of chlorella are obtained after centrifuge is handled.
Further, above-mentioned continuous system further includes air supply unit, and the air supply unit includes Methane decarbonization equipment and use
In the air feed equipment supplied to the tubular type bioreactor, there are two discharge ports for the Methane decarbonization equipment setting, wherein
For biogas to be discharged, another discharge port is connected to one discharge port with air feed equipment.
Further, contain pH intelligent measuring apparatus in above-mentioned biogas slurry conditioning tank and the neutralization precipitation pond.
Further, above-mentioned light electrolysis tank is iron carbon containment type micro-electrolysis reaction tank, and filler is that iron filings and carbon slag pass through height
The containing framework formula that temperature sintering combines together.
Further, above-mentioned centrifuge discharge outlet is equipped with chlorella filter.
Compared with prior art, the utility model has the beneficial effect that: decolourizing first is that can realize to biogas slurry fermented
Processing, avoids influencing chlorella tubular type bioreactor translucency since biogas slurry color is too deep, limiting the photosynthetic work of chlorella
With；Second is that with pretreated biogas slurry culture chlorella, without additional addition nutrient salts substance, and to the biogas that fermentation generates
Tail gas can be used as the carbon source for cultivating chlorella after carrying out decarburization (carbon dioxide) processing, save chlorella toxigenic capacity；Third is that
Going out mounting ball algae filter in centrifuge leakage fluid dram when carrying out centrifugal concentrating can be improved the effect and algae slurry recycling effect of centrifugal concentrating
Rate；Fourth is that feed, cosmetics etc. can be used for using the chlorella that fermentation biogas slurry is cultivated, there is significant economic value；Fifth is that
Fermentation biogas slurry can be effectively treated in chlorella bioreactor, can further be reached by artificial wet land treating system
" agricultural irrigation water quality standard GB5084-2005 ", environmental benefit is significant.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the process flow according to the continuous processing system for handling fermentation biogas slurry based on chlorella of the utility model
Figure；And
Fig. 2 is tubular type bioreactor essential structure figure.
Table one is fermentation biogas slurry different processing units pollutant removal.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, the continuous system for handling fermentation biogas slurry based on chlorella of the utility model includes biogas slurry pretreatment
Unit, chlorella culture unit, air supply unit, chlorella harvest unit, are realized and are connected by pipeline between each structures.
The biogas slurry pretreatment unit includes fermentor 1, biogas slurry conditioning tank 2, sour tank 2-1, light electrolysis tank 3, Fenton oxygen
Change tank 4, alkali tank 5-1, neutralization precipitation pond 5, flocculation aid tank 5-2 and decoloration biogas slurry tank 6, the biogas slurry conditioning tank 2 and is arranged three
Feed inlet, one of them is connected to a discharge port of fermentor 1, the another two discharge port with sour tank 2-1 and water pot 2-1 respectively
Connection, is arranged thereafter discharge port, is connected to the feed inlet of light electrolysis tank 3, and two discharge ports are arranged in the light electrolysis tank 3, wherein
One is connected to the feed inlet of Fenton oxidation tank 4, another connecting pipe, and for the solid at drain tank bottom, described neutralize is sunk
Two feed inlets are arranged in shallow lake pond 5, one of them is connected to the discharge port of Fenton oxidation tank 4, another is with flocculation aid tank 5-2's
Discharge port connection, the alkali tank 5-1 are arranged between Fenton oxidation tank 4 and neutralization precipitation pond 5, the neutralization precipitation pond 5
Discharge port is connected to the feed inlet of decoloration biogas slurry tank 6.
The culture chlorella unit includes tubular type bioreactor 7, and the tubular type bioreactor 7 is arranged three
Feed inlet, be respectively used to input bead algae culturing liquid, through for storing biogas slurry decoloration biogas slurry tank 6 discharge cleaning solution and
Gas, the tubular type bioreactor 7 are the high silicon boron glass pipeline of horizontal reciprocating, equipped with big flow, sustainable work, right
Frustule does not have the circulating pump of shearing force, there is ventilation and gas control equipment etc., what the tubular type bioreactor was cultivated
Chlorella is periodically picked according to its growth cycle.
The air supply unit includes air feed equipment 12, Methane decarbonization equipment 11, gas flowmeter 13, and the Methane decarbonization is set
Two discharge ports of standby 11 setting, one of them is for being discharged biogas, another is connected to air feed equipment 12, the air feed equipment 12
It is connected to a feed inlet of tubular type bioreactor 7 by gas flowmeter 13.
The chlorella harvesting unit includes centrifuge 8, the discharge port of the centrifuge 8 and tubular type bioreactor 7
Connection is delivered in pig farm, gained chlorella is net after gained chlorella algae slurry carries out feed processing after the processing of centrifuge 8
Algae solution after change is directly discharged to artificial swamp 10-1, or artificial according to being discharged into again after actual algae solution demand partial flushing colony house
Wetland 10-1.
Wherein, a feed inlet is arranged in the fermentor 1, and three discharge ports, feed inlet is for conveying pig farm 10-2 production
Raw pig manure, two of them discharge port are connected to respectively at biogas slurry conditioning tank 2 with Methane decarbonization equipment 11, and another discharge port is for arranging
Biogas residue out.
Wherein, the biogas residue solid that the fermentor 1 is discharged is left concentratedly, by zymotechnique, prepares agricultural fertilizer, described
Light electrolysis tank 3, neutralization precipitation pond 5 are discharged scum and leave concentratedly, send to iron-smelter, or blending production construction material.
Wherein, contain pH intelligent measuring apparatus in the biogas slurry conditioning tank 2 and the neutralization precipitation pond 5, according to related chemistry
Principle, need into the biogas slurry conditioning tank 2 acid adding and to adjust biogas slurry pH be 3 or so, reach the useless of the light electrolysis device 3 being arranged thereafter
Following electrochemical reaction occurs after contacting with iron carbon for water process condition, waste water:
Anode: Fe-2e- → Fe2+ E0(Fe2+/Fe3+)=- 0.44v
Cathode: 2H++2e-→H2 E0(H+/H2)=0.00v
Adding alkali into the neutralization precipitation pond 5 and adjusting pH is 9 or so, so that Fe3+With Fe that may be present2+With hydrogen-oxygen
The colloidal form of compound is precipitated.
Wherein, the light electrolysis tank 3 is iron carbon containment type micro-electrolysis reaction tank, and filler is that iron filings and carbon slag are burnt by high temperature
The containing framework formula to combine together is tied, iron carbon mass ratio is 1:1, and the electrolytes of addition is sodium chloride.
Wherein, the flocculation aid added in the neutralization precipitation pond 5 is polyacrylamide, and adding mass ratio is preferably 0.05%
~0.1%.
Wherein, biogas slurry is diluted by clear water in the biogas slurry conditioning tank, the two volume ratio be 9:1~6:1 it
Between.
Wherein, 8 discharge outlet of centrifuge is equipped with chlorella filter 9, prevents the loss of chlorella.
Wherein, carbon dioxide a part needed for cultivating chlorella in the tubular type bioreactor 7 is from biogas
Tail gas passes through the Methane decarbonization equipment 11 treated carbon dioxide, carbon dioxide of a part from purity 99.99%
Gas tank.
In use, effect is one side regulating pondage, another party firstly, biogas slurry conditioning tank receives the biogas slurry after fermentation
It is 3 or so that face, which adjusts biogas slurry pH, reaches the condition of the wastewater treatment for the light electrolysis device being arranged thereafter.
Filler in iron-carbon micro-electrolysis reactor is integrated formula iron carbon, its effect is the no power water flowing the case where
Under, Fe and C can generate " primary battery " effect, and countless potential differences will be formed in light electrolysis equipment up to the " former electric of 1.2V
Pond ", in addition plus electrolyte or waste water are electrolyte, carry out redox processing, Anodic (Fe): Fe-2e to waste water-→
Fe2+；Cathode (C): 2H++2e-→2[H]→H2, so generating nascent state [H], Fe during processing2+、Fe3+Deng in meta-acid
Property under conditions of, redox reaction can occur with many components in waste water for these active constituents, and then degradation of organic substances matter,
Such as make the chromophoric group nitro-NO of some organic matters2, nitroso-NO be reduced to amido-NH2, and amido type organic can
Biochemical is apparently higher than nitro type organic；It can also make certain unsaturated chromophoric groups (such as carboxyl-COOH, azo group-N=N-)
Double bond open, the chromophoric group or auxochrome group of damaged colored waste water or even chain rupture, up to decoloration purpose；The Fe of generation2+Into one
Step is oxidized to Fe3+, their hydrate has stronger absorption-flocculation activity, especially after adding adjusting PH with base value (9 or so)
Generate ferrous hydroxide and ferric hydroxide colloid flocculant.
In view of iron bed can be to the phenomenon that " returning color ", and Fe can occur in a short time after some type waste water decolorings2+Not
This phenomenon can be aggravated to a certain extent by completely removing, therefore in addition to thoroughly removing colour base in subsequent treatment process
Outside, people oxidant H appropriate should also be added2O2, Fe in it and waste water2+Form Fenton reagent.Fenton reagent is due to HO quilt
Fe catalytic decomposition generates hydroxyl radical free radical, so having extremely strong oxidability.On the one hand, continuing with some difficult to degrade has
On the other hand machine waste water can make Fe2+ it is oxidized to Fe rapidly3+Afterwards with Fe (OH)3Colloidal form is precipitated, their flocculation ability
The ferric hydroxide colloid that significantly larger than general medicament hydrolyzes, molecule, the clipped wire dispersed in the water body that can largely flocculate
Son and organic macromolecule.PH value is adjusted when neutralizing sedimentation to 9 or more, makes Fe2+Precipitating completely, Fenton oxidation tank and neutralization precipitation
The setting meaning in pond is exactly herein.
In addition, following benefit may be implemented by carrying out decoloration to fermentation biogas slurry: first is that waste water load can be reduced, being suitble to
Chlorella growth, and avoid due to the excessively high reduction chlorella photosynthetic efficiency of coloration；Second is that removal impurity, meets subsequent chlorella algae
The requirement of slurry recycling processing animal feeding-stuff.Further, the purified biogas slurry of chlorella is directly discharged into artificial swamp.
In conjunction with table one, after carrying out certain proportion dilution to raw water, entire processing system to major pollutants COD in waste water,
The total removal rate of BOD, kjeldahl nitrogen and TP respectively reaches 70.9~72.1%, 73.8~79.0%, 82.4~82.7%, 80.0~
90.6%, the concentration of pollutant can achieve " agricultural irrigation water quality standard GB5084-2005 " after processing, and these final purifications
Clear water can be used to clean colony house and adjust biogas slurry raw water.
Table one
By above embodiments, fermentation biogas slurry can either be handled by chlorella, realizes cycling utilization of wastewater, and can lead to
The recycling processing and fabricating animal feeding-stuff for crossing chlorella algae slurry, realizes certain economic value.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. it is a kind of based on chlorella handle fermentation biogas slurry continuous processing system, which is characterized in that including biogas slurry pretreatment unit,
Chlorella cultivates unit and chlorella harvests unit, is connected between each structures by pipeline,
The biogas slurry pretreatment unit successively includes fermentor (1), biogas slurry conditioning tank (2), light electrolysis tank according to process sequence
(3), Fenton oxidation tank (4), neutralization precipitation pond (5) and decoloration biogas slurry tank (6), wherein the biogas slurry conditioning tank setting three
A feed inlet is connected to the biogas slurry outlet of fermentor (1), sour tank (2-1) and water pot respectively, and the neutralization precipitation pond (5) sets
Two feed inlets are set, are connected to respectively with Fenton oxidation tank (4) and flocculation aid tank (5-2), wherein in Fenton oxidation tank (4)
Alkali tank (5-1) is disposed between neutralization precipitation pond (5),
The chlorella culture unit includes several tubular type bioreactors (7), and the tubular type bioreactor (7) includes
Three feed inlets are respectively used to input bead algae culturing liquid, cleaning solution and gas through decoloration biogas slurry tank discharge,
The chlorella harvesting unit includes centrifuge (8), the discharging of the centrifuge (8) and tubular type bioreactor (7)
Mouth connection obtains chlorella algae slurry and the purified filtered fluid of chlorella after centrifuge (8) processing.
2. the continuous processing system according to claim 1 for handling fermentation biogas slurry based on chlorella, which is characterized in that also wrap
Air supply unit is included, the air supply unit includes Methane decarbonization equipment (11) and is used to supply to the tubular type bioreactor (7)
The air feed equipment (12) of gas, there are two discharge ports for Methane decarbonization equipment (11) setting, and one of discharge port is for being discharged
Biogas, another discharge port are connected to air feed equipment (12).
3. the continuous processing system according to claim 1 for handling fermentation biogas slurry based on chlorella, which is characterized in that described
Contain pH intelligent measuring apparatus in biogas slurry conditioning tank (2) and the neutralization precipitation pond (5).
4. the continuous processing system according to claim 1 for handling fermentation biogas slurry based on chlorella, which is characterized in that described
Light electrolysis tank (3) is iron carbon containment type micro-electrolysis reaction tank, and filler is that iron filings and carbon slag are combined together by high temperature sintering
Contain framework formula.
5. the continuous processing system according to claim 1 for handling fermentation biogas slurry based on chlorella, which is characterized in that described
Centrifuge (8) discharge outlet is equipped with chlorella filter (9).
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| CN201820657003.6U CN208907121U (en) | 2018-05-04 | 2018-05-04 | A kind of continuous processing system handling fermentation biogas slurry based on chlorella |
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| CN201820657003.6U CN208907121U (en) | 2018-05-04 | 2018-05-04 | A kind of continuous processing system handling fermentation biogas slurry based on chlorella |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108485931A (en) * | 2018-05-04 | 2018-09-04 | 江西洁地环境治理生态科技有限公司 | A kind of continuous processing system handling fermentation biogas slurry based on chlorella |
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2018
- 2018-05-04 CN CN201820657003.6U patent/CN208907121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108485931A (en) * | 2018-05-04 | 2018-09-04 | 江西洁地环境治理生态科技有限公司 | A kind of continuous processing system handling fermentation biogas slurry based on chlorella |
| CN108485931B (en) * | 2018-05-04 | 2023-12-19 | 江西洁地环境治理生态科技有限公司 | Continuous treatment system for treating fermentation biogas slurry based on chlorella |
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