CN108314272A - Middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process and its processing system - Google Patents
Middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process and its processing system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000008569 process Effects 0.000 title claims abstract description 37
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 26
- 238000005728 strengthening Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000001112 coagulating effect Effects 0.000 claims abstract description 35
- 238000001556 precipitation Methods 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 239000005416 organic matter Substances 0.000 claims abstract description 18
- 238000004062 sedimentation Methods 0.000 claims abstract description 15
- 230000001954 sterilising effect Effects 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
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- 238000000926 separation method Methods 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
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- 229920002521 macromolecule Polymers 0.000 claims description 2
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- 238000005374 membrane filtration Methods 0.000 claims 1
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- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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- 241000108664 Nitrobacteria Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process and its processing systems comprising be sequentially connected the regulating reservoir connect, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O treatment reactors, two level A/O treatment reactors, MBR membrane bioreactors, sterilizing unit NF film filters and production pond.The present invention can remove most humus, heavy metal ion by the coagulating sedimentation of integrated coagulative precipitation tank；By the recharge of sludge, most humus can be cured in rubbish；It can be retained by SHNF films/RO film filters and isolate organic matter not difficult to degrade, it is effectively increased the accounting into the biochemical organic matter of biochemical reaction process, it also avoids the enrichment of dissolubility salt in conventional system and reduces the concentrated water recharge amount of system, and the operation is stable is good, water treatment efficiency is good, conducive to being widely popularized.
Description
Technical field
The present invention relates to leachate treatment technology field, more particularly to a kind of middle and advanced stage percolate from garbage filling field embrane method is strong
Change treatment process and its processing system.
Background technology
Rubbish " middle old-age group " landfill leachate caused by long-term landfill is generally acknowledged at present used water difficult to degradate.Middle old-age group
The water quality characteristics of landfill leachate are referring to following.
Organic concentration is high：BOD in percolate5And CODcr concentration is usually between 1000mg/l~10000mg/l,
PH is in alkalescent, BOD5For/CODcr between 0.1~0.3, biodegradability is poor.
Tenor is high：Containing being various metals ion in landfill leachate, such as：Copper, iron, arsenic, zinc, lead, chromium, cadmium, mercury
Deng.Content is in several micrograms between tens milligrams.
Ammonia-nitrogen content is high：With the increase of the landfill time limit, the organic nitrogen in rubbish in a large amount of protein, lipoid material
It is converted into ammonia nitrogen so that the ammonia nitrogen in percolate constantly increases, and reaches 500mg/l~2000mg/l.
Hardly-biodegradable substance is more：The hard-degraded substances such as humus, phenol, Polychlorinated biphenyls, amine are more.
Salts substances：Chloride ion content is high in water, reaches 5000mg/l~13000mg/l.
However the processing technological flow of conventional water treatment system is：Regulating reservoir → two-stage A/O-MBR → NF → RO, dope
Recharge.In water treatment system operational process, be susceptible to the enrichment of total dissolubility salt, and be easy by plurality of heavy metal from
Son, the influence of the organic matter of a large amount of difficult for biological degradation, high ammonia nitrogen cause the biochemical residence time to be up to more than ten days, so as to cause being
System job insecurity, it is difficult to realize qualified discharge, easily be in the presence of that effluent quality is not up to standard.
Invention content
In view of the above-mentioned deficiencies, one of the object of the invention is, provide it is a kind of can solve the above problems, and high treating effect
Middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process.
The present invention also aims to provide a kind of above-mentioned middle and advanced stage percolate from garbage filling field embrane method intensive treatment of implementation
The processing system of technique.
To achieve the above object, the technical solution provided is the present invention：
A kind of middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process comprising following steps：
(1) regulating reservoir is handled：Percolate is extracted into regulating reservoir, regulating and storing and being homogenized for percolate；
(2) sedimentation basin is handled：The percolate handled through step (1) is flow to integrated coagulative precipitation tank, integrated coagulation
Sedimentation basin is removed percolate in partial suspended thing, colloid and dissolved matter, coloration, heavy metal in percolate；
(3) pre-filtering is handled：Will through step (2), treated, and percolate flows through pre-filtrating equipment, it is heavy to integrated coagulation
Suspended matter, colloid and the related substances for failing the bulky grain of separation in the pond of shallow lake further detach removal；
(4) SHNF films/RO film process：Will through step (3), treated that percolate flows through SHNF films/RO film filters,
By SHNF films or the selective penetrated property of RO films, the organic matter, toxic of starch in percolate, fibre and a large amount of macromolecular is isolated
Harmful substance, salt solute make the production water of transmission have higher bio-degradable；
(5) level-one A/O processing：Level-one A/O processing will be carried out through step (4) treated percolate, to remove in waste water
BOD5Based on nitrification, and it is intensified anti-nitrated to supplement additional carbon, and the residence time controlled at 3~4 days；
(6) two level A/O processing：Two level A/O processing will be carried out through step (5) treated percolate, it is intensified anti-nitrated de-
Nitrogen function and organic matter is removed, the residence time controlled at 1~2 day；
(7) MBR processing：Will through step (6), treated that percolate is handled through MBR membrane bioreactors, pass through MBR
The concentration of film enriching denitrifying bacteria improves denitrifying efficiency and discharge water quality；
(8) sterilization/filtration treatment：To through step (7), treated that percolate carries out sterilizing/filtration treatment, with strong ultraviolet
Line apparatus kill MBR membrane bioreactors production water in bacterium, control water outlet excrement colibacillus group quantity be less than or equal to 10000/
L makes production water qualified discharge；
Or to through step (7), treated that percolate is filtered processing, use in the middle part of NF film filters separation water
Divide the organic matter not being degraded, so that production water COD is less than 100mg/l, reach discharge standard；
(9) water is produced：Through step (8), treated that qualified water enters that production pond is stored or discharged.
As an improvement of the present invention, the pre-filtrating equipment is quartz filter or bag filter etc..
As an improvement of the present invention, the leading portion anoxic section of the level-one A/O processing in the step (5) and back segment are aerobic
Section is cascaded, and wherein A sections of DO is not more than 0.2mg/L, O sections of DO=2~4mg/L.
As an improvement of the present invention, the two level A/O processing in the step (6) uses additional carbon biological denitrificaion work
Skill and the mode for adding methanol supplement demand of the denitrification to carbon source, intensified anti-nitrated denitrification functions.
As an improvement of the present invention, it is equipped with online DO instrument in the two level A/O processing procedures in the step (6).
As an improvement of the present invention, sludge caused by the integrated coagulative precipitation tank in the step (2) conveys
To concentrated water pond；Concentrated water is delivered to concentrated water pond caused by NF film filters in the step (4)；In the step (7)
The sludge that MBR membrane bioreactors generate is delivered to concentrated water pond.
A kind of processing system for implementing above-mentioned middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process comprising adjust
Save pond, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O treatment reactors, two level A/
O treatment reactors, MBR membrane bioreactors, sterilizing unit and production pond, the regulating reservoir, integrated coagulative precipitation tank, pre- mistake
Filter device, SHNF films/RO film filters, level-one A/O treatment reactors, two level A/O treatment reactors, MBR membrane biological reactions
Device, sterilizing unit and production pond are sequentially connected and connect.
As an improvement of the present invention, further include concentrated water pond, the concentrated water pond respectively with the integrated coagulating sedimentation
Pond, SHNF films/RO film filters are connected with MBR membrane bioreactors.
A kind of processing system for implementing above-mentioned middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process, feature exist
In comprising regulating reservoir, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O processing are anti-
Answer device, two level A/O treatment reactors, MBR membrane bioreactors, NF film filters and production pond, the regulating reservoir, integration
Coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O treatment reactors, two level A/O processing reactions
Device, MBR membrane bioreactors, NF film filters and production pond are sequentially connected and connect.
As an improvement of the present invention, further include concentrated water pond, the concentrated water pond respectively with the integrated coagulating sedimentation
Pond, NF film filters are connected with MBR membrane bioreactors.
Beneficial effects of the present invention are：Method and process provided by the invention is reasonable, passes through the mixed of integrated coagulative precipitation tank
Retrogradation is formed sediment, and can be removed most humus, be removed the heavy metal ion of fraction；It, can be by big portion by the recharge of sludge
The humus divided is cured in rubbish；Organic matter not difficult to degrade is isolated by SHNF films/RO film filters retention, effectively
Increase the accounting into the biochemical organic matter of biochemical reaction process, reduction has the toxic of inhibiting effect to have bioactivity
The amount of machine object；Retain inhibition of the heavy metal ion reduction of 80%-90% to bioactivity；Retain the chlorion of 40%-60%
Reduce the inhibition to bioactivity；Retain inhibition of the chlorion reduction of 40%-60% to bioactivity.By the above pollutant
Part removal promotes the biodegradability of percolate；Dissolubility salt containing 3000mg/l~8000mg/l in the water of biochemical treatment,
In the case where effluent quality processing is up to standard, the salt of system discharge part, the enrichment for avoiding dissolubility salt in conventional system is drawn
Play biochemical and membranous system high load capacity situation.The concentrated water of recharge is mainly the concentrated water of SHNF films/RO film filters in system, this
Concentrated water amount be the total treating capacity of system 20%~25% between, compared to traditional handicraft 30%~40% concentrated water recharge amount and
Speech, greatly reduces the concentrated water recharge amount of system, has not only purified environment, and fund and the place of processing percolate have been saved to enterprise
The difficulty for managing percolate, also as save water source, and the operation is stable is good, and service life is long, is conducive to wide popularization and application.
Below in conjunction with the accompanying drawings with embodiment, the present invention is further described.
Description of the drawings
Fig. 1 is the process flow diagram of embodiment 1 in the present invention.
Fig. 2 is the structural schematic diagram of embodiment 1 in the present invention.
Fig. 3 is the process flow diagram of embodiment 2 in the present invention.
Fig. 4 is the structural schematic diagram of embodiment 2 in the present invention.
Specific implementation mode
Embodiment 1：Referring to Fig. 1 and Fig. 2, it is strong to provide a kind of middle and advanced stage percolate from garbage filling field embrane method for the embodiment of the present invention
Change treatment process and its processing system.
A kind of processing system that biochemical reaction is combined with film comprising regulating reservoir 1, integrated coagulative precipitation tank 2, pre- mistake
Filter device 3, SHNF films/RO film filters 4, level-one A/O treatment reactors 5, two level A/O treatment reactors 6, MBR film biologies
Reactor 7, NF film filters 8 and production pond 10, the regulating reservoir 1, integrated coagulative precipitation tank 2, pre-filtrating equipment 3,
SHNF films/RO film filters 4, level-one A/O treatment reactors 5, two level A/O treatment reactors 6, MBR membrane bioreactors 7,
NF film filters 8 and production pond 10 are sequentially connected and connect.
SHNF films are high antipollution NF membrane.The performance of SHNF films is higher than routine NF films (NF membrane) 20-30%.That is SHNF
Film/RO film filters 4 are also referred to as high antipollution nanofiltration membrane device.SHNF film filters and RO film filters can be with
It is buying on the market.In specific embodiment, accordingly required accordingly SHNF film filters or RO film filters can be selected.
Integrated coagulative precipitation tank 2 can bought on the market.Integrated coagulative precipitation tank 2 mainly passes through Effect of Electric Double Layer
Suspended matter, colloid and the dissolubility of part in principle, chemical bridging action principle, gravitational settling action principle removal percolate
Substance, coloration, heavy metal.Specifically, integrated coagulative precipitation tank 2 includes dosing pond, agitating reaction pond, tube settling separation
Device, sedimentation basin, clear water reserviors and sludge-tank.The dosing pond, agitating reaction pond, sedimentation basin, clear water reserviors and sludge-tank are arranged successively
Row.The upper position in sedimentation basin is arranged in tube settling separator；Wherein dosing pond is connected with agitating reaction pond, dosing pond
Dosing is carried out by dosing pump.Agitating reaction pond is equipped with blender.The top of agitating reaction pond is equipped with to be connected with sedimentation basin
Pipeline, the top position which corresponds to tube settling separator is equipped with the pipeline that is connected with clear water reserviors, the precipitation
The lower part in pond is equipped with the pipeline being connected with sludge-tank.Preferably, dosing pond includes the first dosing pond and the second dosing pond, institute
It includes that the ponds PAM and the ponds PAC effectively promote sedimentation effect to meet different precipitation use demands to state agitating reaction pond.
A kind of middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process comprising following steps：
(1) regulating reservoir is handled：Percolate is extracted into regulating reservoir 1, regulating and storing and being homogenized for percolate；The regulating reservoir 1 is
Pass through the factor designs such as average annual rainfall, percolate day yield, percolate day output, it is ensured that the peace of percolate storage
Complete and system normal table operation, is commonly designed the average day yield that capacity is not less than 30d.
(2) sedimentation basin is handled：The percolate handled through step (1) is flow to integrated coagulative precipitation tank 2, integrated coagulation
Sedimentation basin 2 is removed percolate in partial suspended thing, colloid and dissolved matter, coloration, heavy metal in percolate；One
Sludge caused by body coagulative precipitation tank 2 is delivered to concentrated water pond；
(3) pre-filtering is handled：Will through step (2), treated that percolate flows through pre-filtrating equipment 3, pre-filtrating equipment 3 can
Think the equipment such as quartz filter, bag filter, the outstanding of the bulky grain of separation can be failed to integrated coagulative precipitation tank 2
The substances such as float or colloid further detach removal, ensure the normal table operation of back segment film filter；
(4) SHNF films/RO film process：Will through step (3), treated that percolate flows through SHNF films/RO film filters 4,
The selective penetrated property of SHNF films or RO films isolates the organic matter, poisonous and harmful of starch in percolate, fibre and a large amount of macromolecular
Substance, salt solute make the production water of transmission have higher bio-degradable；Caused by SHNF films/RO film filters 4
Concentrated water is delivered to concentrated water pond；
(5) level-one A/O processing：Level-one A/O processing will be carried out through step (4) treated percolate, to remove in waste water
BOD5 and nitrification based on, and it is intensified anti-nitrated to supplement additional carbon, and the residence time controlled at 3~4 days；
A/O is the abbreviation of Anoxic Oxic, and AO Process is also anaerobic-aerobic Process, and A (Anacrobic) is anaerobism
Section, use and denitrogenation dephosphorizing；O (Oxic) is aerobic section, for the organic matter in removing water.
The leading portion anoxic section and back segment aerobic section of level-one A/O processing in present invention process are cascaded, wherein A sections
DO is not more than 0.2mg/L, O sections of DO=2~4mg/L.
A small amount of macro-molecular protein fat, fat substance and the dissolved organic matter in sewage are hydrolyzed in anoxic section heterotroph
For organic acid, larger molecular organics is made to be decomposed into small organic molecule, when these products through anaerobic hydrolysis enter aerobic tank into
When row Aerobic Process for Treatment, the biodegradability of sewage and the efficiency of oxygen can further improve；
In anoxic section, the pollutants such as a small amount of protein, fat are carried out ammonification (N in organic chain or amino by heterotroph
Amino in acid) dissociate ammonia (NH3、NH4 +), under sufficient oxygen supply condition, the nitrification of autotrophic bacterium is by NH3-N(NH4 +) oxygen
Turn to NO3 -, by flowing back, control is back to the ponds A, and under anoxic conditions, the denitrification of heterotrophic bacteria is by NO3 -It is reduced to molecule
State nitrogen (N2)。
(6) two level A/O processing：Two level A/O processing will be carried out through step (5) treated percolate, two level A/O is using outer
Add carbon source biological denitrification process, demand of the denitrification to carbon source, intensified anti-nitrated denitrogenation work(are supplemented by the way of adding methanol
Can, while A sections of the removal to organic matter.It is equipped with online DO instrument, the stringent dissolved oxygen concentration for controlling biochemical reaction tank ensures system
System is in optimum operation shape.Residence time controlled at 1~2 day；
(7) MBR processing：Will through step (6), treated that percolate is handled through MBR membrane bioreactors 7, due to anti-
Nitrobacteria is easy to happen sludge bulking, is easy to be lost in, the O sections of two level A/O systems, intends using MBR film enriching denitrifying bacterias
Concentration, to improve denitrifying efficiency, while discharge water quality can be improved；The sludge that MBR membrane bioreactors 7 generate is defeated
It send to concentrated water pond；
(8) filtration treatment：To through step (7), treated that percolate is filtered processing, divided using NF film filters 8
From the organic matter that water part is not degraded, so that production water COD is less than 100mg/l, reach discharge standard；
(9) water is produced：Through step (8), treated that qualified water enters that production pond 10 is stored or discharged.
Sludge is delivered to concentrated water pond caused by integrated coagulative precipitation tank in the step (2)；In the step (4)
NF film filters caused by concentrated water be delivered to concentrated water pond；The dirt that MBR membrane bioreactors in the step (7) generate
Mud is delivered to concentrated water pond.
Embodiment 2, referring to Fig. 3 and Fig. 4, it is strong that the embodiment of the present invention provides a kind of middle and advanced stage percolate from garbage filling field embrane method
Change treatment process and its processing system.Difference lies in be substituted for sterilizing unit 9 by the NF film filters 8 for it.Specifically,
A kind of processing system that biochemical reaction is combined with film comprising regulating reservoir 1, integrated coagulative precipitation tank 2, pre-filtrating equipment 3,
High antipollution nanofiltration membrane device, level-one A/O treatment reactors 5, two level A/O treatment reactors 6, MBR membrane bioreactors
7, sterilizing unit 9 and production pond 10, the regulating reservoir 1, integrated coagulative precipitation tank 2, pre-filtrating equipment 3, high antipollution nanofiltration
Film filter, level-one A/O treatment reactors 5, two level A/O treatment reactors 6, MBR membrane bioreactors 7,9 and of sterilizing unit
Production pond 10, which is sequentially connected, to be connect.
A kind of middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process, with above-described embodiment 1 the step of, are basic
Identical, distinctive points are step (8) sterilization processing：To through step (7), treated that percolate carried out sterilization processing, with strong purple
Outer line apparatus kills the bacterium in MBR membrane bioreactors production water, and control water outlet excrement colibacillus group quantity is less than or equal to 10000
A/L makes production water qualified discharge；
Technical solution provided by the invention is reasonable, by the coagulating sedimentation of integrated coagulative precipitation tank 2, can remove most of
Humus, remove the heavy metal ion of fraction；By the recharge of sludge, most humus can be cured to rubbish
In, reduce the processing load of system；Organic matter not difficult to degrade is isolated by SHNF films/retention of RO film filters 4, is had
Effect increases the accounting into the biochemical organic matter of biochemical reaction process, and reduction has the toxic of inhibiting effect to bioactivity
The amount of organic matter；Retain inhibition of the heavy metal ion reduction of 80%-90% to bioactivity；Retain 40%-60% chlorine from
Son reduces the inhibition to bioactivity；Retain inhibition of the chlorion reduction of 40%-60% to bioactivity.By the above pollutant
Part removal promoted percolate biodegradability；Dissolubility containing 3000mg/l~8000mg/l in the water of biochemical treatment
Salt, in the case where effluent quality processing is up to standard, system excludes most salt, avoids the richness of dissolubility salt in conventional system
Collection, and to biochemical and membranous system high load capacity situation.The concentrated water of recharge is mainly SHNF films/RO film filters 4 in system
Concentrated water, between this concentrated water amount is the 20%~25% of the total treating capacity of system, compared to 30%~40% concentrated water of traditional handicraft
For recharge amount, the concentrated water recharge amount of system is greatly reduced, environment has not only been purified, processing percolate has been saved to enterprise
The difficulty of fund and processing percolate, also as save water source, and the operation is stable is good, service life is long.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.Such as the present invention
Described in above-described embodiment, using same or similar treatment process and processing system, all fall in the scope of protection of the present invention.
Claims (10)
1. a kind of middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process, which is characterized in that it includes the following steps：
(1) regulating reservoir is handled：Percolate is extracted into regulating reservoir, regulating and storing and being homogenized for percolate；
(2) sedimentation basin is handled：The percolate handled through step (1) is flow to integrated coagulative precipitation tank, integrated coagulating sedimentation
Pond is removed percolate in partial suspended thing, colloid and dissolved matter, coloration, heavy metal in percolate；
(3) pre-filtering is handled：Will through step (2), treated, and percolate flows through pre-filtrating equipment, to integrated coagulative precipitation tank
In fail suspended matter, colloid and the related substances of bulky grain of separation and further detach removal；
(4) SHNF films/RO film process：Will through step (3), treated that percolate flows through SHNF films/RO film filters, pass through
The selective penetrated property of SHNF films or RO films isolates the organic matter, poisonous and harmful of starch in percolate, fibre and a large amount of macromolecular
Substance, salt solute make the production water of transmission have higher bio-degradable；
(5) level-one A/O processing：Level-one A/O processing will be carried out through step (4) treated percolate, to remove the BOD in waste water5
Based on nitrification, and it is intensified anti-nitrated to supplement additional carbon, and the residence time controlled at 3~4 days；
(6) two level A/O processing：Two level A/O processing, intensified anti-nitrated denitrogenation work(will be carried out through step (5) treated percolate
And organic matter can be removed, the residence time controlled at 1~2 day；
(7) MBR processing：Will through step (6), treated that percolate is handled through MBR membrane bioreactors, it is rich to pass through MBR films
The concentration for collecting denitrifying bacteria improves denitrifying efficiency and discharge water quality；
(8) sterilization/filtration treatment：To through step (7), treated that percolate carries out sterilizing/filtration treatment, filled with intensive ultraviolet
The bacterium killed in MBR membrane bioreactors production water is set, control water outlet excrement colibacillus group quantity is less than or equal to 10000/L, makes
Produce water qualified discharge；
Or to through step (7), treated that percolate is filtered processing, not using NF film filters separation water part
The organic matter being degraded makes production water COD be less than 100mg/l, reaches discharge standard；
(9) water is produced：Through step (8), treated that qualified water enters that production pond is stored or discharged.
2. middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process according to claim 1, which is characterized in that institute
It is quartz filter or bag filter to state pre-filtrating equipment.
3. middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process according to claim 1, which is characterized in that institute
The leading portion anoxic section and back segment aerobic section for stating the level-one A/O processing in step (5) are cascaded, and wherein A sections of DO is not more than
0.2mg/L, O sections of DO=2~4mg/L.
4. middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process according to claim 3, which is characterized in that institute
The processing of the two level A/O in step (6) is stated using additional carbon biological denitrification process and adds and supplements denitrification pair by the way of methanol
The demand of carbon source, intensified anti-nitrated denitrification functions.
5. middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process according to claim 3, which is characterized in that
It is equipped with online DO instrument in two level A/O processing procedures in the step (6).
6. middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process according to claim 1, which is characterized in that institute
It states sludge caused by the integrated coagulative precipitation tank in step (2) and is delivered to concentrated water pond；NF membrane filtrations in the step (4)
Concentrated water caused by device is delivered to concentrated water pond；The sludge that MBR membrane bioreactors in the step (7) generate is delivered to dense
Pond.
7. a kind of processing for implementing one of the claim 1-6 middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process
System, which is characterized in that it include regulating reservoir, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters,
Level-one A/O treatment reactors, two level A/O treatment reactors, MBR membrane bioreactors, sterilizing unit and production pond, the adjusting
Pond, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O treatment reactors, two level A/O
Treatment reactor, MBR membrane bioreactors, sterilizing unit and production pond are sequentially connected and connect.
8. processing system according to claim 7, which is characterized in that it further includes concentrated water pond, the concentrated water pond respectively with institute
State integrated coagulative precipitation tank, SHNF films/RO film filters are connected with MBR membrane bioreactors.
9. a kind of processing for implementing one of the claim 1-6 middle and advanced stage percolate from garbage filling field embrane method strengthening treatment process
System, which is characterized in that it include regulating reservoir, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters,
Level-one A/O treatment reactors, two level A/O treatment reactors, MBR membrane bioreactors, NF film filters and production pond, it is described
Regulating reservoir, integrated coagulative precipitation tank, pre-filtrating equipment, SHNF films/RO film filters, level-one A/O treatment reactors, two level
A/O treatment reactors, MBR membrane bioreactors, NF film filters and production pond are sequentially connected and connect.
10. processing system according to claim 9, which is characterized in that it further includes concentrated water pond, the concentrated water pond respectively with institute
State integrated coagulative precipitation tank, NF film filters are connected with MBR membrane bioreactors.
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