CN106238441B - Remove the technique and its electrolysis unit of heavy metal in house refuse organic waste - Google Patents
Remove the technique and its electrolysis unit of heavy metal in house refuse organic waste Download PDFInfo
- Publication number
- CN106238441B CN106238441B CN201610774115.5A CN201610774115A CN106238441B CN 106238441 B CN106238441 B CN 106238441B CN 201610774115 A CN201610774115 A CN 201610774115A CN 106238441 B CN106238441 B CN 106238441B
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- Prior art keywords
- house refuse
- heavy metal
- organic waste
- electrolysis unit
- babinet
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 52
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000010815 organic waste Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 73
- 230000008569 process Effects 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 230000018044 dehydration Effects 0.000 claims abstract description 20
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 239000013049 sediment Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 239000002361 compost Substances 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 10
- 238000009264 composting Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000010813 municipal solid waste Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007853 buffer solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 229910001443 Cr6+ Inorganic materials 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000003337 fertilizer Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005363 electrowinning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004660 morphological change Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/10—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of chromium or manganese
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the techniques and its electrolysis unit of heavy metal in a kind of removal house refuse organic waste, technical process is divided into seven procedures, the receipts for being followed successively by house refuse transport material, the sorting of house refuse, mixed grinding, washing separation, the dehydration of the first second compression, electrolysis and the dehydration of the second second compression, house refuse and are treated as composting material by the above process；Wherein, electrolysis unit includes babinet, positive electrode deflector, negative electrode deflector, rod-type augers, speed reducer, feed pipe, discharge nozzle and sediment discharge port.Present inventive concept science eliminates in house refuse organic waste for the problem of Heavy-metal Polluted Environment, compared with other physical or chemical treatment methods, saving operating cost after compost, improves compost fertilizer efficiency, stable, easy to operate.
Description
Technical field
The present invention relates to heavy metals in technical field of waste treatment more particularly to a kind of removal house refuse organic waste
Technique and its electrolysis unit.
Background technology
It is to influence environment to be used for heavy metal in the organic waste of compost in recycling municipal solid waste processing disposition
Main matter also influences domestic garbage resource compost fertilizer efficiency.How to effectively remove heavy metal in the organic matter for compost is
Extreme difficulties that the hot spot and compost manufacturer of current municipal works and environmental protection research face and threaten enterprise existence and
Development.Conventional heavy metals removal method is usually by the morphologic change of the heavy metal in composting production, such as solidification and stabilization skill
Art, and total metals do not change in fertilizer, it in use can be with the change of environmental condition, heavy metal ion is also possible to change
Deformation states cause secondary pollution.Currently, it is domestic more to this relevant technical research, to the minimizing technology of heavy metal in solid waste
Mainly there are electrokinetic technique method, bioleaching method, chemical reagent extraction, ion-exchange, solidification and stabilization method etc., still, such as
It is still those skilled in the art's technical barrier urgently to be resolved hurrily that, which more rapidly effectively removes heavy metal in machine waste,.
Invention content
The object of the present invention is to provide the techniques and its electrolysis dress of heavy metal in a kind of removal house refuse organic waste
Set, by the way that the organic waste matter of most high-content in house refuse is efficiently separated, then after removing heavy metals are removed in electrolysis at
For the raw material of compost.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
The technique of heavy metal in a kind of removal house refuse organic waste of the present invention, including following seven treatment process：
1) receipts of house refuse transport material, and the house refuse of each refuse collection station is transported to production and processing point, is gone forward side by side
Row feeding is added in processing equipment；
2) sorting of house refuse detaches the rubbish for being put into screening installation, which mainly uses roller
Sieve and winnowing machine are effectively separated 20mm~80mm grain size materials in house refuse；
3) 20mm~80mm grain size materials isolated are mixed with water, are then ground by grinder by mixed grinding
Mill is until be in muddy；
4) slimy mixture is transported in wet concentration pond by washing separation, and the mixture is divided into three parts, wherein compared with
On light material is bubbled through the water column, impurity material is deposited to the bottom, and another part material is soluble in water, the light matter material that will be bubbled through the water column
After the sundries feed separation of precipitation, remaining material soluble in water enters subsequent processing processing；
5) the first second compression is dehydrated, and material soluble in water is carried out the first compression by belt type dewaterer after washing separation
Dehydration；
6) it is electrolysed, compresses dewatered material and enter electrolysis unit, the electrolysis unit is effective from material by heavy metal
It is detached from, is recycled on aggregation to the electrode deflector in the electrolysis unit after disengaging；Remaining material then enters next work
Sequence；
7) the second second compression is dehydrated, and is entered dehydration equipment the second second compression dehydration of progress departing from the material of heavy metal, is taken off
Composting material is formed after the completion of water.
Further, in the sorting process of the house refuse separation specification of grain size material according to different zones rubbish group
Divide and is set.
Further, slimy fineness is formulated according to the manufacture craft of compost in the mixed grinding process.
Further, the heavy metal removed in the electrowinning process includes Cr, Cr6+, Zn and Cu.
Further, the operating parameter setting of electrolysis unit is in the electrowinning process：Voltage gradient is 1.5-2.5v/
The electrolyte of cm, addition include potassium dihydrogen phosphate or have other electrolyte that please supplement, and buffer solution is added in catholyte, described
Buffer solution is using acetic acid or has other materials that please supplement, and pH value is 7.0~8.5 and is gradually increased by positive electrode to negative electrode
Greatly, the time control of electrolysis is 40~60h.
It is a kind of removal house refuse organic waste in heavy metal electrolysis unit, using electrolysis unit as described above into
The removal operation of heavy metal, the electrolysis unit include babinet in row house refuse organic waste, the water in the babinet
It is provided with positive electrode deflector on flat side wall, negative electrode deflector, the positive electrode are provided in opposite another horizontal side wall
Deflector and negative electrode deflector are connected to the DC power supply of setting outside the enclosure, and feed pipe is connected on the babinet and is gone out
Expects pipe is provided with rod-type augers in babinet, and the rod-type augers connect with speed reducer and by the deceleration
Machine drives, and the bottom of babinet is provided with sediment discharge port, and the sediment discharge port is arranged far from the one of the feed pipe
End.
Further, the horizontal cross deflector interval in the both ends and babinet of the babinet is set as the positive electrode and leads
Flowing plate and negative electrode deflector, and the positive electrode deflector and negative electrode deflector are equidistantly staggered.
Further, the speed reducer uses variable-frequency motor, starts the rod-type in speed reducer driving flow-guiding channel
Augers realize the transmission of material, and the transmission speed of material is adjustable.
Further, the shape of the feed pipe is designed as L shapes, and the shape of the discharge nozzle is designed as through type.
Further, the babinet includes the long square groove of multiple units, in each long square groove of unit just including one
Electrode deflector, a negative electrode deflector, a rod-type augers and a sediment discharge port, the two of arbitrary neighborhood
Rod-type augers in a long square groove of unit share a speed reducer, and all one group of long square grooves of unit arranged side by side share
One DC power supply, a feed pipe and a discharge nozzle.
Compared with prior art, advantageous effects of the invention：
The present invention removes the technique and its electrolysis unit of heavy metal in house refuse organic waste, and technical process is divided into
Seven procedures, the receipts for being followed successively by house refuse transport material, the sorting of house refuse, mixed grinding, washing separation, the first second compression
Dehydration, electrolysis and the dehydration of the second second compression, processing procedure are that life garbage transporting to treating stations and adds screening installation roller
In sieve, house refuse sub-elects granule materials by rotary screen operating, and granule materials are added recirculated water and carry out mixed grinding to mud
Pulpous state carries out washing separation and removes floating material and impurity material, and remaining material carries out the first second compression dehydration, after dehydration
Material be transported to electrolysis unit, heavy metal therein is gone out by electrolytic separation, the material after being finally electrolysed is pressed by second
Contracting is dehydrated into composting material.Wherein, electrolysis unit can according to organic matter material process lot size and content of beary metal, and
It is used after connection or series connection, to meet the production requirement of garbage disposal；In use, starting speed reducer drives the rotation of rod-type augers
Transhipment is dynamic, and the material entered from feed pipe is realized rotation push, during push, the positive electrode water conservancy diversion in the long square groove of unit
Under the action of plate and negative electrode deflector, heavy metal is constantly adsorbed onto on negative electrode deflector, is recycled, overweight
Substance can fall on down the rectangular trench bottom formation sediment of unit and is discharged again by sediment discharge port, and remaining material is by layer by layer
It after screening, is discharged by the discharge nozzle on the long square groove of the last one unit of babinet, the material of discharge carries out the second second compression dehydration
Process.
Present inventive concept science, processing arrangement is reasonable, and electrolysis unit can be according to heavy metal in the raw material that need to produce preparation
The long square groove of unit is carried out serial or parallel connection, and realizes the electrolysis point of heavy metal by speed reducer frequency conversion pushing speed by content
From process, work efficiency is high, operation facility；By the separating treatment of heavy metal, organic waste in house refuse is effectively eliminated
Object be used for compost after Heavy-metal Polluted Environment the problem of；Compared with other physical or chemical treatment methods, operating cost is saved, is carried
High compost fertilizer efficiency, it is stable, easy to operate.
Description of the drawings
The invention will be further described for explanation below in conjunction with the accompanying drawings.
Fig. 1 is the process flow chart of heavy metal in present invention removal house refuse organic waste；
Fig. 2 is the electrolysis unit front view of heavy metal in present invention removal house refuse organic waste；
Fig. 3 is the electrolysis unit vertical view of heavy metal in present invention removal house refuse organic waste；
Fig. 4 is the electrolysis unit left view of heavy metal in present invention removal house refuse organic waste；
Reference sign：10, the receipts of house refuse transport material；20, the sorting of house refuse；30, mixed grinding；40、
Washing separation；50, the first second compression is dehydrated；60, it is electrolysed；70, the second second compression is dehydrated；
61, positive electrode deflector；62, negative electrode deflector；63, DC power supply；64, feed pipe；65, discharge nozzle；66, subtract
Fast machine；67, rod-type augers；68, sediment discharge port.
Specific implementation mode
As shown in Figure 1, a kind of technique removing heavy metal in house refuse organic waste, including following seven processing work
Sequence：
1) receipts of house refuse transport material 10, and the house refuse of each refuse collection station is transported to production and processing point, and
Feeding is carried out to be added in processing equipment；
2) sorting 20 of house refuse, the rubbish for being put into screening installation is detached, and the screening installation is mainly using rolling
Shaft screen and winnowing machine are effectively separated 20mm~80mm grain size materials in house refuse；
3) 20mm~80mm grain size materials isolated are mixed with water, are then carried out by grinder by mixed grinding 30
Grinding is until be in muddy；
4) slimy mixture is transported in wet concentration pond by washing separation 40, and the mixture is divided into three parts, wherein
On light matter material is bubbled through the water column, impurity material is deposited to the bottom, and another part material is soluble in water, the light matter that will be bubbled through the water column
After the sundries feed separation of material and precipitation, remaining material soluble in water enters subsequent processing processing；
5) the first second compression is dehydrated 50, and material soluble in water, which is passed through belt type dewaterer, after washing separation carries out the first pressure
Contracting dehydration；
6) 60 are electrolysed, dewatered material is compressed and enters electrolysis unit, the electrolysis unit has heavy metal from material
Effect is detached from, and is recycled on aggregation to the electrode deflector in the electrolysis unit after disengaging；Remaining material then enters next
Process；
7) the second second compression dehydration 70 enters dehydration equipment the second second compression dehydration of progress departing from the material of heavy metal,
Composting material is formed after the completion of dehydration.
The separation specification of grain size material is carried out according to different zones waste component in 20 process of sorting of the house refuse
Setting.
Slimy fineness is formulated according to the manufacture craft of compost in 30 process of the mixed grinding.
The heavy metal removed in 60 processes of the electrolysis includes Cr, Cr6+, Zn and Cu, can also be removed to a certain extent
The heavy metals such as lead, cadmium, mercury.
The operating parameter setting of electrolysis unit is in 60 processes of the electrolysis：Voltage gradient is 1.5~2.5v/cm, addition
Electrolyte include potassium dihydrogen phosphate, buffer solution is added in catholyte, it is 7.0~8.5 that the buffer solution, which uses acetic acid, pH value,
And gradually increased by positive electrode to negative electrode, the time control of electrolysis is 40~60h.
As shown in figs. 2 to 4, a kind of electrolysis unit removing heavy metal in house refuse organic waste, the electrolysis dress
It sets including babinet, is provided with positive electrode deflector 61 in the horizontal side wall in the babinet, in opposite another horizontal side wall
It is provided with negative electrode deflector 62, the direct current of the positive electrode deflector 61 and negative electrode deflector 62 with setting outside the enclosure
Power supply 63 is connected to, and is connected with feed pipe 64 and discharge nozzle 65 on the babinet, rod-type augers 67, institute are provided in babinet
It states rod-type augers 67 to connect with speed reducer 66 and drive by the speed reducer 66, the bottom of babinet is provided with sediment
Discharge port 68, the sediment discharge port 68 are arranged far from one end of the feed pipe 64.
Horizontal cross deflector interval in the both ends and babinet of the babinet is set as 61 He of positive electrode deflector
Negative electrode deflector 62, and the positive electrode deflector 61 and negative electrode deflector 62 are equidistantly staggered.
The speed reducer 66 uses variable-frequency motor, starts the rod-type spiral pushing in the driving flow-guiding channel of speed reducer 66
Device 67 realizes the transmission of material, and the transmission speed of material is adjustable.
The shape of the feed pipe 64 is designed as L shapes, and the shape of the discharge nozzle 65 is designed as through type.
The babinet includes the long square groove of multiple units, includes a positive electrode deflector in each long square groove of unit
61,62, rod-type augers 67 of a negative electrode deflector and a sediment discharge port 68, two of arbitrary neighborhood
Rod-type augers 67 in the long square groove of unit share a speed reducer 66, and all one group of long square grooves of unit arranged side by side are total
With 63, feed pipes 64 of a DC power supply and a discharge nozzle 65.
Specifically, electrolysis unit can be according to organic matter material process lot size and content of beary metal, in parallel or series
After use, to meet the production requirement of garbage disposal；Rod-type augers 67 are driven to rotate fortune in use, starting speed reducer 66
It is dynamic, the material entered from feed pipe 64 is realized into rotation push, during push, the positive electrode deflector in the long square groove of unit
61 and negative electrode deflector 62 under the action of, heavy metal is constantly adsorbed onto on negative electrode deflector 62, is recycled, mistake
The substance of weight can fall on down the rectangular trench bottom of unit and form sediment, the sediment mainly include fritter sand material, metal,
Glass etc., these sediments are discharged by sediment discharge port 68, and remaining material is last by babinet after screening layer by layer
Discharge nozzle 65 on one long square groove of unit is discharged, and the material of discharge carries out the second second compression dehydration procedure, eventually forms compost
Raw material.
Embodiment described above is only that the preferred embodiment of the present invention is described, and is not carried out to the scope of the present invention
It limits, under the premise of not departing from design spirit of the present invention, those of ordinary skill in the art make technical scheme of the present invention
Various modifications and improvement, should all fall into claims of the present invention determination protection domain in.
Claims (10)
1. the technique of heavy metal in a kind of removal house refuse organic waste, it is characterised in that：Including following seven processing work
Sequence：
1) receipts of house refuse transport material (10), and the house refuse of each refuse collection station is transported to production and processing point, is gone forward side by side
Row feeding is added in processing equipment；
2) sorting (20) of house refuse, the rubbish for being put into screening installation is detached, which mainly uses roller
Sieve and winnowing machine are effectively separated 20mm~80mm grain size materials in house refuse；
3) 20mm~80mm grain size materials isolated are mixed with water, are then ground by grinder by mixed grinding (30)
Mill is until be in muddy；
4) slimy mixture is transported in wet concentration pond by washing separation (40), and the mixture is divided into three parts, wherein compared with
On light material is bubbled through the water column, impurity material is deposited to the bottom, and another part material is soluble in water, the light matter material that will be bubbled through the water column
After the sundries feed separation of precipitation, remaining material soluble in water enters subsequent processing processing；
5) the first second compression is dehydrated (50), and material soluble in water, which is passed through belt type dewaterer, after washing separation carries out the first compression
Dehydration；
6) (60) are electrolysed, compress dewatered material and enter electrolysis unit, the electrolysis unit is effective from material by heavy metal
It is detached from, is recycled on aggregation to the electrode deflector in the electrolysis unit after disengaging；Remaining material then enters next work
Sequence；
7) the second second compression dehydration (70) enters dehydration equipment the second second compression dehydration of progress departing from the material of heavy metal, takes off
Composting material is formed after the completion of water.
2. the technique of heavy metal in removal house refuse organic waste according to claim 1, it is characterised in that：It is described
The separation specification of grain size material is set according to different zones waste component in sorting (20) process of house refuse.
3. the technique of heavy metal in removal house refuse organic waste according to claim 1, it is characterised in that：It is described
Slimy fineness is formulated according to the manufacture craft of compost in mixed grinding (30) process.
4. the technique of heavy metal in removal house refuse organic waste according to claim 1, it is characterised in that：It is described
The heavy metal removed in electrolysis (60) process includes Cr, Cr6+, Zn and Cu.
5. the technique of heavy metal in removal house refuse organic waste according to claim 1, it is characterised in that：It is described
The operating parameter setting of electrolysis unit is in electrolysis (60) process：Voltage gradient is 1.5~2.5v/cm, the electrolyte packet of addition
Potassium dihydrogen phosphate is included, buffer solution is added in catholyte, the buffer solution uses acetic acid, pH value to be 7.0~8.5 and by positive electrode
Gradually increase to negative electrode, the time control of electrolysis is 40~60h.
6. the electrolysis unit of heavy metal in a kind of removal house refuse organic waste, it is characterised in that：Utilize such as claim 1
Or the electrolysis unit described in 5 carries out the removal operation of heavy metal in house refuse organic waste, the electrolysis unit includes
Babinet is provided with positive electrode deflector (61) in the horizontal side wall in the babinet, is arranged in opposite another horizontal side wall
Have a negative electrode deflector (62), the positive electrode deflector (61) and negative electrode deflector (62) with setting outside the enclosure straight
Galvanic electricity source (63) is connected to, and is connected with feed pipe (64) and discharge nozzle (65) on the babinet, being provided with rod-type spiral in babinet pushes away
Device (67), the rod-type augers (67) is sent to connect and driven by the speed reducer (66), babinet with speed reducer (66)
Bottom be provided with sediment discharge port (68), the sediment discharge port (68) is arranged far from the one of the feed pipe (64)
End.
7. the electrolysis unit of heavy metal in removal house refuse organic waste according to claim 6, it is characterised in that：
Horizontal cross deflector interval in the both ends and babinet of the babinet is set as the positive electrode deflector (61) and negative electrode
Deflector (62), and the positive electrode deflector (61) and negative electrode deflector (62) are equidistantly staggered.
8. the electrolysis unit of heavy metal in removal house refuse organic waste according to claim 6, it is characterised in that：
The speed reducer (66) uses variable-frequency motor, starts the rod-type augers in speed reducer (66) driving flow-guiding channel
(67) transmission of material is realized, and the transmission speed of material is adjustable.
9. the electrolysis unit of heavy metal in removal house refuse organic waste according to claim 6, it is characterised in that：
The shape of the feed pipe (64) is designed as L shapes, and the shape of the discharge nozzle (65) is designed as through type.
10. the electrolysis unit of heavy metal, feature exist in removal house refuse organic waste according to claim 6
In：The babinet includes the long square groove of multiple units, includes positive electrode deflector (61), one in each long square groove of unit
A negative electrode deflector (62), a rod-type augers (67) and a sediment discharge port (68), the two of arbitrary neighborhood
Rod-type augers (67) in a long square groove of unit share a speed reducer (66), and all one group of units arranged side by side are long
Square groove shares a DC power supply (63), a feed pipe (64) and a discharge nozzle (65).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774115.5A CN106238441B (en) | 2016-08-31 | 2016-08-31 | Remove the technique and its electrolysis unit of heavy metal in house refuse organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774115.5A CN106238441B (en) | 2016-08-31 | 2016-08-31 | Remove the technique and its electrolysis unit of heavy metal in house refuse organic waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106238441A CN106238441A (en) | 2016-12-21 |
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| CN106957185A (en) * | 2017-05-24 | 2017-07-18 | 山东科技大学 | A kind of integrated compositing system of house refuse and its compost method |
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| CN107939881A (en) * | 2017-12-31 | 2018-04-20 | 三橡股份有限公司 | A kind of compartment damping rubber pad and preparation method thereof |
| CN111346897B (en) * | 2020-03-09 | 2021-12-28 | 清华大学 | Organic solid waste pretreatment system and process, and corresponding organic solid waste continuous hydrothermal treatment system and process |
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