CN108147627A - The anaerobic acid-production methane phase technique of the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen and synchronous recycling ammonia nitrogen - Google Patents
The anaerobic acid-production methane phase technique of the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen and synchronous recycling ammonia nitrogen Download PDFInfo
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- CN108147627A CN108147627A CN201810155979.8A CN201810155979A CN108147627A CN 108147627 A CN108147627 A CN 108147627A CN 201810155979 A CN201810155979 A CN 201810155979A CN 108147627 A CN108147627 A CN 108147627A
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- 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
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2101/30—Organic compounds
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention provides a kind of anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen and the anaerobic acid-production methane phase techniques of synchronous recycling ammonia nitrogen, belong to organic matter process field.The port of export of hydrolysis acidification consersion unit in the device is connected with the arrival end of electricity hydrolysis ammonia nitrogen separation equipment, and electricity hydrolyzes arrival end of the port of export of ammonia nitrogen separation equipment respectively with the arrival end of methane phase consersion unit and ammonia nitrogen absorption equipment and connects.The device is simple, at low cost, suitable for containing NH4 +Debirs processing.Using above device by pending organic matter by hydrolysis acidification consersion unit hydrolysis acidification, the first acidifying solution input electricity hydrolysis ammonia nitrogen separation equipment electricity of gained hydrolyzes, and the second acidifying solution of gained is input to methane phase consersion unit, NH4 +It is input to ammonia nitrogen absorption equipment.This is simple for process time-consuming short, by recycling ammonia nitrogen class substance, such substance is avoided to influence anaerobic methane production process after accumulating, in favor of improving methane production, contributes to the recycling of bioenergy.
Description
Technical field
The present invention relates to organic matter process field, and more particularly to a kind of anaerobic acid-production methane phase dress of synchronous recycling ammonia nitrogen
Put and synchronize the anaerobic acid-production methane phase technique of recycling ammonia nitrogen.
Background technology
City organic solid pollutant mainly includes residential households rubbish, kitchen garbage, garden garbage, human and animal excreta, dirt
Organic domestic waste that the units such as mud and commerce and service sectors, culture, education and public health, organ and enterprises and institutions generate etc..National cities and towns life
Rubbish processing to be harmless rate living is only 63.5%.City organic solid castoff such as cannot be handled quickly and effectively, can be produced
Raw stench, spreads the disease at polluted underground water, safe and healthy to urban public environment to cause great threat.
Anaerobic digestion techniques using organic solid castoff as raw material, can generate regenerative resource --- the natural pond of cleaning, environmental protection
Gas is widely used and focused.However, in the hydrolysis acidification stage of anaerobic digestion, in the organic solid pollutant of city
Most of organic nitrogen (protein and urea) be converted into ammonia nitrogen under the action of hydrolysis acidification bacterium.The ammonia nitrogen of generation only lacks portion
The nitrogen source grown for microorganism is allocated as, assimilation enters microbial cell, and major part is then constantly accumulated in anaerobic reactor.When
When ammonia nitrogen runs up to a certain concentration, not only influence the activity of Hydrogen and acetic acid type methanogen or even all anaerobism can be inhibited micro-
The growth of biological flora causes anaerobic reactor operation to be stagnated and even collapses.Therefore, ammonia nitrogen has become consolidates for the high nitrogenous city of limitation
The bottleneck of body anaerobic digestion of waste technology development.
Invention content
One of the objects of the present invention is to provide a kind of anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen, device letters
It is single, it is at low cost, suitable for containing NH4 +Debirs processing.
Another object of the present invention is to provide a kind of anaerobic acid-production methane phase technique of synchronous recycling ammonia nitrogen, technique letter
It is short during unit consumption, by recycling ammonia nitrogen class substance, such substance is avoided to influence anaerobic methane production process after accumulating, in favor of improving first
Alkane yield contributes to the recycling of bioenergy.
The present invention is solved its technical problem and is realized using following technical scheme：
The present invention proposes a kind of anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen, is set including hydrolysis acidification reaction
Standby, electric hydrolysis ammonia nitrogen separation equipment, ammonia nitrogen absorption equipment and methane phase consersion unit, the port of export of hydrolysis acidification consersion unit
It is connected with the arrival end of electricity hydrolysis ammonia nitrogen separation equipment, the port of export of electricity hydrolysis ammonia nitrogen separation equipment reacts respectively with methane phase to be set
The arrival end connection of standby arrival end and ammonia nitrogen absorption equipment.
Further, in present pre-ferred embodiments, electricity hydrolysis ammonia nitrogen separation equipment includes electricity hydrolysis room, ion exchange
Film, first electrode, second electrode and power supply, electricity hydrolysis room is divided by amberplex isolation is located at amberplex two respectively
The anode chamber of side and cathode chamber are simultaneously used for the NH in anode chamber4 +It exchanges to cathode chamber, the arrival end of anode chamber is used for and hydrolysis
The port of export connection of acidification reaction equipment, the port of export of anode chamber with the arrival end of methane phase consersion unit for connecting, cathode
The port of export of room with ammonia nitrogen absorption equipment for connecting, and first electrode is set to anode chamber, and second electrode is set to cathode chamber, the
One electrode and second electrode are electrically connected to a power source.
Further, in present pre-ferred embodiments, anode chamber's middle-jiao yang, function of the spleen and stomach extremely stainless steel material electrode and/or cathode chamber
Middle cathode is stainless steel material electrode.
Further, in present pre-ferred embodiments, amberplex is cation-exchange membrane.
Further, in present pre-ferred embodiments, being internally provided with for ammonia nitrogen absorption equipment contains NH for adsorbing4+
Ammonia nitrogen class substance filler.
Further, in present pre-ferred embodiments, ammonia nitrogen absorption equipment further includes the port of export connected with cathode chamber,
Filler is set between the arrival end of ammonia nitrogen absorption equipment and the port of export of ammonia nitrogen absorption equipment, by the entrance of ammonia nitrogen absorption equipment
The ammonia nitrogen class substance of cathode chamber output that end enters is transferred back to cathode chamber after filling adsorption from the port of export of ammonia nitrogen absorption equipment.
Further, in present pre-ferred embodiments, pH value is additionally provided between anode chamber and methane phase consersion unit
Adjustment equipment.
Further, in present pre-ferred embodiments, anode chamber and cathode chamber are respectively arranged with oxygen collection port and hydrogen
Gas collection port.
Further, in present pre-ferred embodiments, blender is provided in hydrolysis acidification consersion unit.
The invention also provides a kind of anaerobic acid-production methane phase techniques of synchronous recycling ammonia nitrogen, include the following steps：It uses
The anaerobic acid-production methane phase device of above-mentioned synchronous recycling ammonia nitrogen, acid is hydrolyzed by pending organic matter by hydrolysis acidification consersion unit
Change, obtain the first acidifying solution；First acidifying solution input electricity hydrolysis ammonia nitrogen separation equipment carries out electric hydrolysis, obtains the second acidifying solution and NH4 +,
Second acidifying solution is input to methane phase consersion unit with methane phase, NH4 +Ammonia nitrogen absorption equipment is input to recycle ammonia nitrogen.
The anaerobism production of the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen and synchronous recycling ammonia nitrogen in the embodiment of the present invention
The advantageous effect of sour methane phase technique is：
The anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen that present pre-ferred embodiments provide is simple, at low cost, fits
For containing NH4 +Debirs processing.The anaerobic acid-production methane phase of the synchronous recycling ammonia nitrogen of offer is simple for process, time-consuming short, leads to
Recycling ammonia nitrogen class substance is crossed, such substance is avoided to influence anaerobic methane production process after accumulating, in favor of improving methane production, is helped
In the recycling of bioenergy.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is that the first structure of the synchronous anaerobic acid-production methane phase device for recycling ammonia nitrogen provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is that second of structure of the synchronous anaerobic acid-production methane phase device for recycling ammonia nitrogen provided in an embodiment of the present invention is shown
It is intended to.
Icon：10- synchronizes the anaerobic acid-production methane phase device of recycling ammonia nitrogen；11- hydrolysis acidification consersion units；111- is stirred
Device；113- pollutant feed pipes；115- is acidified liquid pipe；The first valves of 117-；119- waste sludge discharge channels；13- electricity hydrolyzes ammonia nitrogen
Separation equipment；131- electricity hydrolyzes room；1311- anode chambers；1312- oxygen collection ports；1313- cathode chambers；1314- Hydrogen collections
Mouthful；133- amberplexes；135- first electrodes；137- second electrodes；139- power supplys；15- ammonia nitrogen absorption equipments；151-
One pump；17- methane phase consersion units；171- biogas collecting pipes；173- wastewater discharge pipes；175-pH value adjustment equipments；176-
Second pump.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " on ", " under ", " interior ", " outer "
Put relationship be based on orientation shown in the drawings or position relationship or the invention product using when the orientation or position usually put
Relationship is put, be for only for ease of the description present invention and simplifies description rather than instruction or implies that signified device or element are necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term
" first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In addition, the terms such as term " vertical " are not offered as requiring component absolute upright, but can be slightly tilted.As " hung down
Directly " only refer to that its direction is more vertical with respect to for " level ", be not to represent that the structure is had to completely vertically, but can
To be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the present invention.
It is specifically described with reference to embodiments.
Fig. 1 is please referred to, the anaerobic acid-production methane phase device 10 of synchronous recycling ammonia nitrogen provided in an embodiment of the present invention includes water
Solve acidification reaction equipment 11, electricity hydrolysis ammonia nitrogen separation equipment 13, ammonia nitrogen absorption equipment 15 and methane phase consersion unit 17.
The port of export of hydrolysis acidification consersion unit 11 is connected with the arrival end of electricity hydrolysis ammonia nitrogen separation equipment 13, electricity hydrolysis ammonia
The port of export of nitrogen separation equipment 13 respectively with the arrival end of methane phase consersion unit 17 and the arrival end of ammonia nitrogen absorption equipment 15
Connection.
Wherein, hydrolysis acidification consersion unit 11 is used to pending organic matter acidification being hydrolyzed under anaerobic, from
And complicated pending organic matter is resolved into small organic molecule, generate volatile organic acids (C2-C6), while protein etc.
Nitrogenous type organic hydrolysis release contains NH4 +Substance, acidifying solution will be defined as through the liquid obtained by hydrolysis acidification.
Optionally, blender 111 is provided with, such as can be used and continuously stir in above-mentioned hydrolysis acidification consersion unit 11
Pond reactor (such as CSTR).Ground is can refer to, the reactor with following performance can be used in the above-mentioned pond reactor that continuously stirs：It is total to hold
Product is 10L, dischargeable capacity 6L, hydraulic detention time 4-7d, and organic loading is 3-5gCOD/ (Ld), and mixing speed is
60rpm, temperature are 35 ± 1 DEG C.It what deserves to be explained is can be according to actual needs to the type and ginseng of hydrolysis acidification consersion unit 11
Number is suitably replaced.
The arrival end of hydrolysis acidification consersion unit 11 can set pollutant feed pipe 113, hydrolysis acidification consersion unit 11
The port of export is equipped with the acidification liquid pipe for the acidifying solution of gained after hydrolysis acidification to be input to electricity hydrolysis ammonia nitrogen separation equipment 13
115.It is acidified liquid pipe 115 and is equipped with the first valve 117, the acidifying solution in hydrolysis acidification consersion unit 11 to be controlled to input electricity hydrolysis ammonia
The amount of nitrogen separation equipment 13.Preferably, the arrival end of above-mentioned hydrolysis acidification consersion unit 11 and the port of export may be contained within hydrolysis acid
Change the top of consersion unit 11.
Further, the lower part of hydrolysis acidification consersion unit 11 is additionally provided with the waste sludge discharge channel for discharging waste residue
119。
Electricity hydrolysis ammonia nitrogen separation equipment 13 includes electricity hydrolysis room 131, amberplex 133, the 135, second electricity of first electrode
Pole 137 and power supply 139.Amberplex 133 is isolated electricity hydrolysis room 131 being divided into is located at 133 both sides of amberplex respectively
Anode chamber 1311 and cathode chamber 1313 and for by the NH in anode chamber 13114 +It exchanges to cathode chamber 1313, anode chamber 1311
Arrival end for being connected with the port of export of hydrolysis acidification consersion unit 11, the port of export of anode chamber 1311 is used for and methane phase
The arrival end connection of consersion unit 17, the port of export of cathode chamber 1313 with ammonia nitrogen absorption equipment 15 for connecting, first electrode
135 are set to anode chamber 1311, and second electrode 137 is set to cathode chamber 1313, and first electrode 135 and second electrode 137 are equal
It is electrically connected with power supply 139.
Work of the acidifying solution in electricity hydrolysis of the anode chamber 1311 of electricity hydrolysis ammonia nitrogen separation equipment 13 is inputted by acidification liquid pipe 115
With it is lower through amberplex 133 by NH4 +It exchanges to cathode chamber 1313, so as to complete the separation with organic matter in acidifying solution.
Preferably, the anode contained by middle-jiao yang, function of the spleen and stomach of embodiment of the present invention pole room 1311 is stainless steel material electrode and/or cathode chamber
Cathode contained by 1313 is stainless steel material electrode, such as 316 stainless steel electrodes.
Above-mentioned amberplex 133 is cation-exchange membrane 133, such as CR67HMR cation-exchange membranes 133.As optional
Ground, the membrane area of above-mentioned CR67HMR cation-exchange membranes 133 can be 0.02m2。
Can refer to ground, the dischargeable capacity of above-mentioned electricity hydrolysis ammonia nitrogen separation equipment 13 can be 6L, charge density 15-20V,
Nitrate recirculation ratio is 25%.It what deserves to be explained is can be according to actual needs to the type and parameter of electricity hydrolysis ammonia nitrogen separation equipment 13
Suitably replaced.
Preferably, middle-jiao yang, function of the spleen and stomach of embodiment of the present invention pole room 1311 is additionally provided with oxygen collection port 1312, cathode chamber 1313 is set
There is Hydrogen collection mouth 1314, to collect the oxygen and hydrogen that electricity hydrolysis ammonia nitrogen separation equipment 13 generates respectively.
Being internally provided with for ammonia nitrogen absorption equipment 15 contains NH for adsorbing4 +Ammonia nitrogen class substance filler (not shown),
The NH containing high concentration exported by 1313 port of export of cathode chamber4 +Ammonia nitrogen class substance inhaled in ammonia nitrogen absorption equipment 15 by filler
It is attached.First pump 151 can be also set between 1313 port of export of cathode chamber and ammonia nitrogen absorption equipment 15, in order to by cathode chamber 1313
In contain NH4 +Ammonia nitrogen class substance be pumped into ammonia nitrogen absorption equipment 15.
Further, ammonia nitrogen absorption equipment 15 may also include the port of export connected with cathode chamber 1313, at this point, filler is set
Between the arrival end of ammonia nitrogen absorption equipment 15 and the port of export of ammonia nitrogen absorption equipment 15, ground is can refer to, is connected with cathode chamber 1313
Logical arrival end is set to the lower part of ammonia nitrogen absorption equipment 15, and the port of export connected with cathode chamber 1313 is set to ammonia nitrogen absorption and sets
Standby 15 top, so as to the cathode chamber 1313 for forming a flow cycle namely being entered by the arrival end of ammonia nitrogen absorption equipment 15
The ammonia nitrogen class substance of output flows up, and the recycling of ammonia nitrogen class substance is completed after filling adsorption, remove the liquid of ammonia nitrogen again by
The port of export at 15 top (top) of ammonia nitrogen absorption equipment is transferred back to the cathode chamber 1313 of electricity hydrolysis ammonia nitrogen separation equipment 13.
Methane phase consersion unit 17 in the embodiment of the present invention for example may be selected to be up-flow anaerobic sludge blanket (UASB), can
Reference, the solvent of the up-flow anaerobic sludge blanket can be 4L, dischargeable capacity 2L, hydraulic detention time 8h, and temperature is
35±1℃.What deserves to be explained is it the type to methane phase consersion unit 17 and parameter can carry out suitably more according to actual needs
It changes.
Specifically, by the acidifying solution that anode chamber 1311 exports by the bottom of methane phase consersion unit 17, upward flow crosses anaerobism
After reactor, the organic matter and volatile organic acids of small molecule are converted to biogas, then pass through under the action of anaerobe
It is recycled after three phase separator separation.The top of methane phase consersion unit 17 can be respectively arranged to collect the biology of biogas
Gas collecting pipe 171 and the wastewater discharge pipe 173 for discharging waste water.
Further, Fig. 2 is please referred to, pH value adjusting is additionally provided between anode chamber 1311 and methane phase consersion unit 17 and is set
Standby 175, the second pump 176, the sun of electricity hydrolysis ammonia nitrogen separation equipment 13 can be set between pH value adjustment equipment 175 and anode chamber 1311
Acidifying solution in pole room 1311 is pumped into pH adjustment equipments from 1311 bottom of anode chamber, the pH of acidifying solution is adjusted to 7 or so.pH
Adjustment equipment is automatic to add lye to control the pH value into methane phase consersion unit 17 by pH auto-controllers.
The embodiment of the present invention also provides a kind of anaerobic acid-production methane phase technique of synchronous recycling ammonia nitrogen, and the equipment used is i.e.
Anaerobic acid-production methane phase device 10 for above-mentioned synchronous recycling ammonia nitrogen.Its technological process includes：By pending organic matter by hydrolyzing
11 hydrolysis acidification of acidification reaction equipment, obtains the first acidifying solution；First acidifying solution input electricity hydrolysis ammonia nitrogen separation equipment 13 carries out electricity
Hydrolysis, obtains the second acidifying solution and NH4 +, the second acidifying solution is input to methane phase consersion unit 17 with methane phase, NH4 +It is input to ammonia
Nitrogen absorption equipment 15 is to recycle ammonia nitrogen.
Above-mentioned technique can pass through by the acidifying solution that the anaerobic hydrolysis-acidification stage generates before the anaerobic methane production stage is entered
Electricity hydrolysis film separation reaction equipment recycling ammonia nitrogen, to eliminate influence of the ammonia nitrogen accumulation to follow-up anaerobic methane production process, Jin Erti
High methane production contributes to the recycling of bioenergy.Also, the part in the acidifying solution that hydrolysis acidification consersion unit 11 generates is big
Can to be further hydrolyzed to the small molecules such as volatile acid organic in the anode chamber 1311 of electricity hydrolysis film separation reaction equipment for molecular organic
Object improves the gas producing efficiency of methane-producing reactor.Electricity hydrolysis membrane separation reactor selects cation-exchange membrane 133, can make NH4 +Sun
Ion enters cathode chamber 1313, detaches ammonia nitrogen and finally recycles ammonia nitrogen.
Test example
Experimental study is carried out by taking pig manure as an example.Pig manure is derived from Nanjing pig farm, a concentration of 40g/L of dry solid in excrement,
Suspended sediment concentration is 32.9g/L.Anaerobic sludge is derived from the upward flow anaerobic reactor of certain brewery.Its property is as shown in table 1：
The property of 1 pig manure of table and seed sludge
It is tested by the synchronous anaerobic acid-production methane phase technique for recycling ammonia nitrogen provided in an embodiment of the present invention.Wherein, detest
Oxygen hydrolysis acidification reactor using pond reactor (CSTR), total measurement (volume) 10L, dischargeable capacity 6L is continuously stirred, stop by waterpower
The time is stayed as 4-7d, organic loading is 3-5gCOD/ (Ld).Mixing speed is 60rpm, and temperature is 35 ± 1 DEG C.Anaerobism produces first
Alkane reactor is anaerobic mud bed (UASB) using upward flow, total measurement (volume) 4L, dischargeable capacity 2L, and hydraulic detention time is
8h, temperature are 35 ± 1 DEG C.The dischargeable capacity of electricity hydrolysis film separation reaction device is 6L, and cathode and anode are 316 stainless steels electricity
Pole, centre are equipped with CR67HMR cationic membranes, membrane area 0.02m2, charge density 15-20V.Nitrate recirculation ratio is 25%.
Result of the test is as follows：In charge density 17.5V, anaerobic methane reaches 425m3/ kg disappears than conventional diphasic anaerobic
Chemical industry skill improves 31%；Cathode chamber solution pH is 8.2-8.5 simultaneously, and the ammonia nitrogen concentration of enrichment reaches 20g/L, is ammonia in pig manure
6.5 times of nitrogen concentration.
It it can thus be seen that can by the synchronous anaerobic acid-production methane phase technique for recycling ammonia nitrogen provided in an embodiment of the present invention
Inhibiting effect of the ammonia nitrogen to anaerobic methane production microorganism is effectively eliminated, improves biogas yield.
In conclusion the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen provided by the invention is simple, and it is at low cost, it is applicable in
In containing NH4 +Debirs processing.The anaerobic acid-production methane phase of the synchronous recycling ammonia nitrogen of offer is simple for process, time-consuming short, passes through
Ammonia nitrogen class substance is recycled, such substance is avoided to influence anaerobic methane production process after accumulating, in favor of improving methane production, is contributed to
The recycling of bioenergy.
Above example is part of the embodiment of the present invention, instead of all the embodiments.The embodiment of the present invention it is detailed
Thin description is not intended to limit the range of claimed invention, but is merely representative of the selected embodiment of the present invention.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen, which is characterized in that including hydrolysis acidification consersion unit, electricity
Hydrolyze ammonia nitrogen separation equipment, ammonia nitrogen absorption equipment and methane phase consersion unit, the port of export of the hydrolysis acidification consersion unit
With it is described electricity hydrolysis ammonia nitrogen separation equipment arrival end connect, it is described electricity hydrolyze ammonia nitrogen separation equipment the port of export respectively with it is described
The arrival end of the arrival end of methane phase consersion unit and the ammonia nitrogen absorption equipment connects.
2. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 1, which is characterized in that the electricity water
It solves ammonia nitrogen separation equipment and includes electricity hydrolysis room, amberplex, first electrode, second electrode and power supply, the amberplex
The electricity hydrolysis room is divided into the anode chamber for being located at the amberplex both sides respectively and cathode chamber and is used for institute by isolation
State the NH in anode chamber4 +It exchanges to the cathode chamber, the arrival end of the anode chamber is used for and the hydrolysis acidification consersion unit
Port of export connection, the port of export of the anode chamber with the arrival end of the methane phase consersion unit for connecting, the cathode
For the port of export of room for being connected with the ammonia nitrogen absorption equipment, the first electrode is set to the anode chamber, second electricity
Pole is set to the cathode chamber, the first electrode and the second electrode with the power electric connection.
3. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 2, which is characterized in that the anode
Cathode is stainless steel material electrode in room middle-jiao yang, function of the spleen and stomach extremely stainless steel material electrode and/or the cathode chamber.
4. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 2, which is characterized in that the ion
Exchange membrane is cation-exchange membrane.
5. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 2, which is characterized in that the ammonia nitrogen
Being internally provided with for absorption equipment contains the NH for adsorbing4 +Ammonia nitrogen class substance filler.
6. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 5, which is characterized in that the ammonia nitrogen
Absorption equipment further includes the port of export connected with the cathode chamber, and the filler is set to the arrival end of the ammonia nitrogen absorption equipment
Between the port of export of the ammonia nitrogen absorption equipment, the cathode chamber entered by the arrival end of the ammonia nitrogen absorption equipment exports
Ammonia nitrogen class substance be transferred back to the cathode chamber from the port of export of the ammonia nitrogen absorption equipment after the filling adsorption.
7. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 2, which is characterized in that the anode
PH value adjustment equipment is additionally provided between room and the methane phase consersion unit.
8. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 2, which is characterized in that the anode
Room and cathode chamber are respectively arranged with oxygen collection port and Hydrogen collection mouth.
9. the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen according to claim 1, which is characterized in that the hydrolysis
Blender is provided in acidification reaction equipment.
10. a kind of anaerobic acid-production methane phase technique of synchronous recycling ammonia nitrogen, which is characterized in that include the following steps：Use such as power
Profit requires 1-9 any one of them to synchronize the anaerobic acid-production methane phase device for recycling ammonia nitrogen, by pending organic matter by the water
Acidification reaction equipment hydrolysis acidification is solved, obtains the first acidifying solution；The first acidifying solution input electricity hydrolysis ammonia nitrogen separation equipment
Electric hydrolysis is carried out, obtains the second acidifying solution and NH4 +, second acidifying solution is input to the methane phase consersion unit with methane phase,
The NH4 +The ammonia nitrogen absorption equipment is input to recycle ammonia nitrogen.
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| CN201810155979.8A CN108147627A (en) | 2018-02-23 | 2018-02-23 | The anaerobic acid-production methane phase technique of the anaerobic acid-production methane phase device of synchronous recycling ammonia nitrogen and synchronous recycling ammonia nitrogen |
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