CN108975644A - A kind of processing system and device of rubbish leachate - Google Patents
A kind of processing system and device of rubbish leachate Download PDFInfo
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- CN108975644A CN108975644A CN201811161452.2A CN201811161452A CN108975644A CN 108975644 A CN108975644 A CN 108975644A CN 201811161452 A CN201811161452 A CN 201811161452A CN 108975644 A CN108975644 A CN 108975644A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/44—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
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
Abstract
The present invention discloses and provides a kind of process flow is simple, equipment cost is low, treatment effect is stable and can thoroughly realize rubbish leachate concentrate circular treatment treatment process and its processing unit.Wherein rubbish leachate processing unit includes being sequentially connected the conditioning tank connect, coagulating basin, Fenton pond, sedimentation basin, membrane bioreactor (MBR), sand filter, reverse osmosis membrane (DTRO), wherein the conditioning tank is connected with the sand filter and the reverse osmosis membrane (DTRO) respectively, the rubbish leachate processing unit further includes blower system, medicine system and belt type sludge filter press, wherein the blower system is connected with the membrane bioreactor (MBR), the medicine system distinguishes the coagulating basin, the Fenton pond, the sedimentation basin is connected, the belt type sludge filter press respectively with the coagulating basin, the Fenton pond, the sedimentation basin and the conditioning tank are connected, the conditioning tank is connected with garbage transfer station sewage storage pond again.The present invention is suitable for the rubbish leachate process field of garbage transfer station.
Description
Technical field
The present invention relates to a kind of rubbish leachate treatment process and its processing units.
Background technique
The advantages that compacting refuse transfer station is small with its occupied area, good concealment, beautifies the environment, leads garbage transfer
The development for industry of standing.But its leachate is a kind of organic wastewater of high-concentration hardly-degradable, and the concentration of COD and ammonia nitrogen is generally to live
Tens times or even hundred times of sewage or industrial wastewater, in addition, also contain more than ten heavy metal species ions in rubbish leachate, if
Deal with improperly, not only can contaminated soil and earth surface water source, also will cause underground water pollution, and then jeopardize animals and plants and the mankind
Health complies with discharge standard therefore, it is necessary to handle such rubbish leachate.But it is existing to this kind of leachate
Processing method or processing technological flow it is complicated, take up a large area, need civil engineering；Or the film concentrate generated needs separately
Processing, increases processing cost in this way, without fundamentally solving the problems, such as that rubbish leachate is intractable.
So designing, a set of process flow is simple, equipment cost is low, processing cost is low, treatment effect is stable and thorough solution
Certainly the treatment process and its processing unit of the rubbish leachate of the difficult problem of film concentrate are imperative.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide, a kind of process flow is simple, sets
For at low cost, processing cost is low, treatment effect is stable and the place of the thorough rubbish leachate for solving the difficult problem of film concentrate
Science and engineering skill and its processing unit.
The technical scheme adopted by the invention is that: a kind of rubbish leachate processing unit, it includes being sequentially connected the tune connect
Pond, coagulating basin, Fenton pond, sedimentation basin, membrane bioreactor (MBR), sand filter, reverse osmosis membrane (DTRO) are saved, wherein the tune
Section pond is connected with the sand filter with the reverse osmosis membrane (DTRO) respectively again.The rubbish leachate processing unit further includes band
Formula filter press, medicine system and blower system.The belt filter press respectively with the coagulating basin, the Fenton pond and described heavy
Shallow lake pond is connected, and supernatant is back to the conditioning tank, and the membrane bioreactor (MBR) is conveyed by the blower system and is aerated,
Medicament required for the coagulating basin, the Fenton pond and the sedimentation basin is successively added by the medicine system.
The conditioning tank water outlet is connected with the coagulating basin water inlet, first water inlet of conditioning tank and the rubbish
Terminal sewage storage pond is connected, and second water inlet of conditioning tank is connected with the belt type sludge filter press, the conditioning tank
Third water inlet is connected with the sand filter backwash tube, and the 4th water inlet of conditioning tank and the reverse osmosis membrane (DTRO) are dense
Contracting liquid discharge pipe is connected.
The coagulating basin water outlet is connected with Fenton pond water inlet, the coagulating basin mud discharging mouth and the belt type sludge
Filter press is connected, and the coagulating basin is connected with first dosing mouth of medicine system.
Fenton pond water outlet is connected with the sedimentation basin water inlet, Fenton pond mud discharging mouth and the belt type sludge
Filter press is connected, and Fenton pond is connected with second dosing mouth of medicine system.
The sedimentation basin water outlet is connected with the membrane bioreactor (MBR) water inlet, the sludge from sedimentation tank mouth with
The belt type sludge filter press is connected, and the sedimentation basin is connected with the medicine system third dosing mouth.
Membrane bioreactor (MBR) water outlet is connected with the sand filter water inlet, the blower system air outlet
It is connected with membrane bioreactor (MBR).
The sand filter water outlet is connected with the reverse osmosis membrane (DTRO) water inlet, the backwash water outlet of the sand filter
Mouth is connected with the conditioning tank third water inlet, and the water inlet of sand filter is connected with running water pipe.
Reverse osmosis membrane (DTRO) water outlet is connected with municipal sewage pipe network, the film concentration of the reverse osmosis membrane (DTRO)
Liquid discharge outlet is connected with the 4th water inlet of conditioning tank.
A kind of Garbage leachate disposal method realized by above-mentioned rubbish leachate processing unit, it includes following step
It is rapid:
A, rubbish leachate to be processed is sent into the conditioning tank, carries out the adjusting of water quality and water；
B, the rubbish leachate after overregulating is sent to the coagulating basin, carries out coagulating sedimentation, remove part COD and bulky grain
Substance, the coagulating basin generates precipitating and sludge in the process；
C, the rubbish leachate after coagulation is sent to the Fenton pond, carries out Fenton's reaction, further removes COD, degraded
The biodegradability of filtrate is turned up in long-chain pollutant, and the Fenton pond generates precipitating and sludge in the process；
D, the rubbish leachate after Fenton oxidation is sent to the sedimentation basin, adjusts pH by the way that lime is added, rubbish is dripped
Metal ion in filtrate and reverse osmosis concentrated liquid removes, and makes it possible the real circular treatment of reverse osmosis membrane concentrate, mistake
Sedimentation basin described in journey generates precipitating and sludge；
E, it will send by the rubbish leachate of precipitating to the membrane bioreactor (MBR), carry out biodegrade, further decrease
COD, ammonia nitrogen and SS；
F, it will send by biodegradable rubbish leachate to the sand filter, and further decrease turbidity and SS, and be subsequent process
Reverse osmosis membrane is prepared;
G, will by filtering rubbish leachate send the COD made in rubbish leachate to the reverse osmosis membrane (DTRO), ammonia nitrogen,
Metal ion etc. is all stopped outside film, as long as hydrone can pass through, finally makes rubbish leachate qualified discharge；
H, the sludge and precipitating that generate in step BCD are sent to the belt type sludge filter press, the supernatant of generation is sent to institute
It states conditioning tank to handle once again, the sludge of generation is periodically transported outward；
I, the medicament that will be needed in step BCD is added by the medicine system；
J, air needed for step E is inputted by the blower system；
K, the backwashing wastewater generated in step F is sent into the conditioning tank, regulating water quality water, low adjustment pond is impacted negative
Lotus is that the circular treatment of reverse osmosis membrane concentrate improves condition；
L, the reverse osmosis concentrated liquid generated in step G is sent into the conditioning tank, realizes the real circular treatment of counter-infiltration dope,
Reach zero-emission purpose.
The beneficial effects of the present invention are: can quickly and effectively remove rubbish leachate due to using coagulating basin, Fenton pond
In content of organics；The turbidity of rubbish leachate can not only be further decreased due to using sand filter, is next step
Reverse osmosis membrane (DTRO) is prepared, and its backwashing wastewater is passed through conditioning tank, can be reduced in conditioning tank to a certain extent
The concentration of rubbish leachate, is the concentrate circular treatment of reverse osmosis membrane, really realizes that zero-emission provides condition；In entire technique
In again use sedimentation basin, not only can quickly and effectively reduce the content of metal ion in rubbish leachate, but also film can also be removed
The higher metal ion of content in concentrate enables film concentrate circular treatment, really realizes zero-emission.
Detailed description of the invention
Fig. 1 is the structure connection diagram of rubbish leachate processing unit in the present invention.
Specific embodiment
As shown in Figure 1, a kind of rubbish leachate processing unit, it includes being sequentially connected the conditioning tank 1 connect, coagulating basin 2, sweet smell
Pond 3, sedimentation basin 4, membrane bioreactor (MBR) 5, sand filter 6, reverse osmosis membrane (DTRO) 7, wherein the conditioning tank 1 divides again
It is not connected with the sand filter 6 with the reverse osmosis membrane (DTRO) 7.The rubbish leachate processing unit further includes blower system
8, medicine system 9 and belt filter press 10.The membrane bioreactor (MBR) 5 is conveyed by the blower system 8 and is aerated, described
Medicament required for coagulating basin 2, the Fenton pond 3 and the sedimentation basin 4 is successively added by the medicine system 9, the belt
Filters pressing 10 is connected with the coagulating basin 2, the Fenton pond 3 and the sedimentation basin 4 respectively, and supernatant is back to the conditioning tank 1.
First water inlet of the conditioning tank 1 is connected with the tank water outlet of garbage transfer station by a water pump,
1 second water inlet of conditioning tank is connected with the water outlet of the belt type sludge filter press 10 by a water pump, the tune
Section 1 third water inlet of pond is connected with 6 backwash tube of sand filter by a water pump, the 4th water inlet of conditioning tank 1
It is connected with 7 concentrate discharge pipe of the reverse osmosis membrane (DTRO) by a water pump.
2 water outlet of coagulating basin is connected with 3 water inlet of Fenton pond, 2 mud discharging mouth of coagulating basin and the belt
Sludge filter press 10 is connected, and the coagulating basin 2 is connected with 9 first dosing mouth of medicine system by a constant flow pump.
3 water outlet of Fenton pond is connected with 4 water inlet of sedimentation basin, 3 mud discharging mouth of Fenton pond and the belt
Sludge filter press 10 is connected, and Fenton pond 3 is connected with 9 second dosing mouth of medicine system by a constant flow pump
It connects.
4 water outlet of sedimentation basin is connected with 5 water inlet of the membrane bioreactor (MBR) by a water pump, institute
It states 4 mud discharging mouth of sedimentation basin to be connected with the belt type sludge filter press 10, the sedimentation basin 4 and the 9 third dosing of medicine system
Mouth is connected by a constant flow pump.
5 water outlet of membrane bioreactor (MBR) is connected with 6 water inlet of sand filter by a water pump, institute
8 air outlet of blower system is stated to be connected with membrane bioreactor (MBR).
6 water outlet of sand filter is connected with 7 water inlet of the reverse osmosis membrane (DTRO) by a high-pressure diaphragm pump, institute
The backwash water inlet for stating sand filter 6 is connected with running water pipe, the backwash water outlet of the sand filter 6 and the conditioning tank 1
Third water inlet is connected by a water pump.
7 water outlet of reverse osmosis membrane (DTRO) is connected with municipal sewage pipe network, and the film of the reverse osmosis membrane (DTRO) 7 is dense
Contracting liquid discharge outlet is connected with the 4th water inlet of conditioning tank (1) by a water pump.
A kind of Garbage leachate disposal method realized by above-described rubbish leachate processing unit, it includes
Following steps:
A. rubbish leachate to be processed is sent into the conditioning tank 1, carries out the adjusting of water quality and quantity；
B. the rubbish leachate through overregulating is sent and carries out coagulating sedimentation into the coagulating basin 2, first adjust rubbish leachate
PH, then under the action of coagulant and flocculation aid, a large amount of organic matter is deposited, and produces in the coagulating basin 2 in the process
Raw precipitating and sludge；
C. it will be sent by the rubbish leachate of coagulation and carry out oxidation reaction into the Fenton pond 3, first adjust rubbish leachate
PH, then under the chemical reaction of ferrous sulfate and hydrogen peroxide, long-chain organic matter is decomposed in rubbish leachate, a large amount of organic
Object precipitates, and COD concentration substantially reduces, and the biodegradability of filtrate greatly improves, and generates precipitating in the Fenton pond 3 in the process
And sludge；
D. it will be sent by the rubbish leachate of Fenton oxidation and carry out chemical precipitation into the sedimentation basin 4, by using stone
Grey cream adjusts pH, and metal ion in metal ion and reverse osmosis membrane concentrate in rubbish leachate etc. is precipitated to get off, and makes
It really realizes that the circular treatment of reverse osmosis membrane concentrate is possibly realized, generates precipitating and sludge in the sedimentation basin 4 in the process；
E. it will send by the rubbish leachate of precipitating to the membrane bioreactor (MBR) 5 and carry out aerobic biodegradation, into one
Step reduces COD, removal ammonia nitrogen and SS；
F. it will send by biodegradable rubbish leachate to the sand filter 6 and be filtered, and further decrease turbidity and SS,
It prepares for rear subsequent filtrate by reverse osmosis membrane;
G. it will send by the rubbish leachate of filtering to the reverse osmosis membrane (DTRO) 7 and carry out film filtering, make in rubbish leachate
COD, ammonia nitrogen, heavy metal etc. all stop outside film, as long as hydrone can pass through, finally make rubbish leachate qualified discharge；
H. the sludge and precipitating that generate in step BCD are sent into the belt type sludge filter press 10, the supernatant of generation is sent
To handling once again in the conditioning tank 1, sludge is periodically transported outward；
I. the medicament that will be needed in step BCD is added by the medicine system 9；
J. air needed for step E is inputted by the blower system 8；
K. the backwashing wastewater generated in step F is sent into the conditioning tank 1, regulating water quality water, by rushing for low adjustment pond
Load is hit, really to realize that the circular treatment of reverse osmosis membrane concentrate provides condition；
L. the reverse osmosis concentrated liquid generated in step G is sent into the conditioning tank 1, realizes counter-infiltration dope really at circulation
Reason, reaches zero-emission purpose.
Sedimentation basin described in this specific embodiment is inclined-plate clarifying basin；The biology of film described in this specific embodiment
Reactor uses built-in, hyperfiltration membrane assembly；Sand filter described in this specific embodiment is V-type filter tank；This specific implementation
Reverse osmosis membrane described in example is disc tube reverse osmosis (dt-ro) membrane module (DTRO).
The present invention is suitable for the process field of garbage transfer station leachate.
Claims (13)
1. a kind of rubbish leachate treatment system and device, it is characterised in that: it includes being sequentially connected the conditioning tank (1) connect, mixing
Solidifying pond (2), Fenton pond (3), sedimentation basin (4), membrane bioreactor (MBR) (5), sand filter (6) and reverse osmosis membrane (DTRO)
(7), wherein the conditioning tank (1) is connected with the sand filter (6) and the reverse osmosis membrane (DTRO) (7) respectively, the rubbish
Rubbish leaching liquid processing device further includes blower system (8), medicine system (9) and belt type sludge filter press (10), wherein the drum
Wind system (8) is connected with the membrane bioreactor (MBR) (5), the medicine system (9) coagulating basin (2), described respectively
Fenton pond (3) and the sedimentation basin (4) are connected, the belt type sludge filter press (10) respectively with the coagulating basin (2), described
Fenton pond (3) and the sedimentation basin (4) are connected with the conditioning tank (1), the conditioning tank (1) again with the garbage transfer station
Sewage storage pond is connected.
2. rubbish leachate processing unit according to claim 1, it is characterised in that: conditioning tank (1) water outlet and institute
Coagulating basin (2) water inlet to be stated to be connected, (1) first water inlet of conditioning tank is connected with garbage transfer station sewage storage pond,
(1) second water inlet of conditioning tank is connected with the belt type sludge filter press (10), conditioning tank (1) the third water inlet with
Sand filter (6) backwash tube is connected, and the 4th water inlet of conditioning tank (1) and the reverse osmosis membrane (DTRO) (7) are concentrated
Liquid discharge pipe is connected.
3. rubbish leachate processing unit according to claim 1, it is characterised in that: coagulating basin (2) water outlet and institute
It states Fenton pond (3) water inlet to be connected, coagulating basin (2) mud discharging mouth is connected with the belt type sludge filter press (10), described mixed
Solidifying pond (2) are connected with (9) first dosing mouth of medicine system.
4. rubbish leachate processing unit according to claim 1, it is characterised in that: Fenton pond (3) water outlet and institute
It states sedimentation basin (4) water inlet to be connected, Fenton pond (3) mud discharging mouth is connected with the belt type sludge filter press (10), the institute
Fenton pond (3) is stated to be connected with (9) second dosing mouth of medicine system.
5. rubbish leachate processing unit according to claim 1, it is characterised in that: sedimentation basin (4) water outlet and institute
It states membrane bioreactor (MBR) (5) water inlet to be connected, sedimentation basin (4) mud discharging mouth and the belt type sludge filter press (10)
It is connected, the sedimentation basin (4) is connected with the medicine system (9) third dosing mouth.
6. rubbish leachate processing unit according to claim 1, it is characterised in that: the membrane bioreactor (MBR) (5)
Water outlet is connected with the sand filter (6) water inlet, and blower system (8) air outlet and membrane bioreactor (MBR) are aerated
Pipe is connected.
7. rubbish leachate processing unit according to claim 1, it is characterised in that: sand filter (6) water outlet and institute
It states reverse osmosis membrane (DTRO) (7) water inlet to be connected, the backwash water inlet of the sand filter (6) is connected with running water pipe, described
The backwash water outlet of sand filter (6) is connected with the conditioning tank (1) third water inlet.
8. rubbish leachate processing unit according to claim 1, it is characterised in that: the reverse osmosis membrane (DTRO) (7) goes out
The mouth of a river is connected with municipal sewage pipe network, the film concentrate discharge outlet of the reverse osmosis membrane (DTRO) (7) and the conditioning tank (1) the
Four water inlets are connected.
9. a kind of rubbish leachate treatment process realized using rubbish leachate processing unit described in claim 1,
Be characterized in that: it the following steps are included:
(1) rubbish leachate to be processed is sent into the conditioning tank (1), carries out the adjusting of water quality and water；
(2) rubbish leachate after overregulating is sent to the coagulating basin (2), carries out coagulating sedimentation, remove part COD and big
Particulate matter, the coagulating basin (2) generates precipitating and sludge in the process；
(3) rubbish leachate after coagulation is sent to the Fenton pond (3), carries out Fenton's reaction, further removes COD,
Degradation long-chain pollutant, improves the biodegradability of filtrate, and the Fenton pond (3) generates precipitating and sludge in the process；
(4) rubbish leachate after Fenton oxidation is sent to the sedimentation basin (4), pH is adjusted by the way that lime is added, by rubbish
Metallic salt in rubbish leachate and reverse osmosis concentrated liquid removes, and the sedimentation basin (4) generates precipitating and sludge in the process；
(5) it will send by the rubbish leachate of precipitating to the membrane bioreactor (MBR) (5), carry out biodegrade, further
Reduce COD, ammonia nitrogen and SS；
(6) it will send by biodegradable rubbish leachate to the sand filter (6), and further decrease turbidity and SS, and be subsequent
It prepares by reverse osmosis membrane;
(7) it will send by the rubbish leachate of filtering to the reverse osmosis membrane (DTRO) (7), make COD, the ammonia in rubbish leachate
The indices such as nitrogen, heavy metal reach discharge standard；
(8) sludge and precipitating that generate in step BCD are sent to the belt type sludge filter press (10), the supernatant generated through filters pressing
Liquid is sent to circular treatment in the conditioning tank (1), and sludge is periodically transported outward；
(9) medicament that will be needed in step BCD is added by the medicine system (9)；
(10) air needed for step E is inputted by the blower system (8)；
(11) backwashing wastewater generated in step F is sent into the conditioning tank (1), regulating water quality water, by low adjustment pond
Impact load；
(12) reverse osmosis concentrated liquid generated in step G is sent into the conditioning tank (1), realizes that counter-infiltration dope really recycles
Processing, reaches zero-emission purpose.
10. the treatment process of rubbish leachate according to claim 9, it is characterised in that: mixed described in the step BC
Solidifying pond (2) and the Fenton pond (3) are stable to the treatment effect of rubbish leachate COD, reliable, can remove the organic matter of nearly half
Content.
11. the treatment process of rubbish leachate according to claim 9, it is characterised in that: in the step E, Ke Yiyou
Effect reduces COD, BOD, ammonia nitrogen and turbidity in rubbish leachate, carries out them the simultaneous reactions in a pond, avoids A2O
Etc. the method for removing COD and ammonia nitrogen, keep whole flow process simple process effective.
12. the treatment process of rubbish leachate according to claim 9, it is characterised in that: in the step F, not only may be used
The turbidity in rubbish leachate is further decreased, is prepared for the filtering of subsequent film, and the backwashing wastewater generated is sent to institute
It states in conditioning tank (1), regulating water quality water, lowers impact load, be the circular treatment of reverse osmosis membrane concentrate, really realize zero
Offer condition is provided.
13. the treatment process of rubbish leachate according to claim 9, it is characterised in that: in the step D, Ke Yiyou
Effect reduces the metal ion in rubbish leachate and reverse osmosis membrane concentrate, effectively reduces by metal ion to reverse osmosis membrane
(DTRO) the external and internal pressure load that (7) generate, not only extends the service life of film, also makes at reverse osmosis membrane concentrate circulation
Reason really realizes that zero-emission is possibly realized.
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| CN201811161452.2A CN108975644A (en) | 2018-09-30 | 2018-09-30 | A kind of processing system and device of rubbish leachate |
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| CN201811161452.2A CN108975644A (en) | 2018-09-30 | 2018-09-30 | A kind of processing system and device of rubbish leachate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307402A (en) * | 2021-05-21 | 2021-08-27 | 南京信息工程大学 | Landfill leachate treatment system and treatment method |
| CN113830976A (en) * | 2021-10-29 | 2021-12-24 | 深圳市福田区环境技术研究所有限公司 | Treatment process with zero discharge of wastewater |
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