CN108046529A - A kind of Domestic Waste Leachate purifying treatment method and system and application - Google Patents
A kind of Domestic Waste Leachate purifying treatment method and system and application Download PDFInfo
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- CN108046529A CN108046529A CN201711387313.7A CN201711387313A CN108046529A CN 108046529 A CN108046529 A CN 108046529A CN 201711387313 A CN201711387313 A CN 201711387313A CN 108046529 A CN108046529 A CN 108046529A
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- domestic waste
- waste leachate
- reverse
- water
- processing
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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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 Domestic Waste Leachate purifying treatment methods and system and application, method to include：Step A：Pretreatment, Domestic Waste Leachate is pre-processed by setting pot and regulating reservoir；Step B：Anaerobic reaction processing carries out anaerobic reaction processing by anaerobic reactor；Step C：Membrane filtration carries out membrane filtration processing by me.mbrane bioreactor；Step D：Nanofiltration is handled；Step E：Reverse-osmosis treated；Afterbody in reverse osmosis unit uses sea water desalination membrane；Handle the Leachate site completed.Directly apply to industrial boiler water-supply.System includes：Setting pot, regulating reservoir, anaerobic reactor, me.mbrane bioreactor, nanofiltration processor and reverse-osmosis treated device including configuring connection successively.Cost is lower, has saved water resource, realizes resource circulation utilization.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind of Domestic Waste Leachate purifying treatment method with being
System and application.
Background technology
Garbage leachate refer to rubbish fill and stacking process in, due to organic matter in garbage decomposition generate water and
Free water, precipitation in rubbish and the underground water infiltrated, the sewage formed by eluviation, is a kind of height of complicated component
Concentration organic wastewater.In general, pH value is between 4~9, and 2000~60000mg/L of COD, BOD5 is in 60~45000mg/
The concentration of heavy metal is basically identical in L, heavy metal concentration and municipal wastewater.Mainly by polluted-water and soil to surrounding resident
Health, to environment structure serious threat, if do not dealt carefully with, it will so that pollution last very long.Therefore, at percolate
Reason is the essential link of sanitary filling field.
Existing Domestic Waste Leachate processing is highly difficult, is generally combined using biochemical treatment+materializing strategy
Processing method, wherein, materializing strategy is pretreatment, and biochemical treatment is main body, and film process is aftertreatment systems.These method works
Skill is complicated, of high cost.Meanwhile industrial boiler water-supply is typically all directly using water sources such as tap water, underground water or surface water.System
Water is of high cost, waste water resource.
The content of the invention
The object of the present invention is to provide a kind of Domestic Waste Leachate purifying treatment method and system and applications, and cost is more
It is low, water resource has been saved, has realized resource circulation utilization.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of Domestic Waste Leachate purifying treatment method, including：
Step A：Pretreatment, Domestic Waste Leachate is pre-processed by setting pot and regulating reservoir；
Step B：Anaerobic reaction processing carries out anaerobic reaction processing by anaerobic reactor；
Step C：Membrane filtration carries out membrane filtration processing by me.mbrane bioreactor；
Step D：Nanofiltration is handled；
Step E：Reverse-osmosis treated；Afterbody in reverse osmosis unit uses sea water desalination membrane；
Processing is completed.
It is further included after the step E：
Step F：Ion-exchange treatment；
A kind of Domestic Waste Leachate cleaning treatment system, setting pot, regulating reservoir, anaerobism including configuring connection successively are anti-
Answer device, me.mbrane bioreactor, nanofiltration processor and reverse-osmosis treated device.
Ion-exchange treatment device is reconnected after the reverse-osmosis treated device.
A kind of application of middle water after Domestic Waste Leachate purified treatment, directly applies to industrial boiler water-supply.
As seen from the above technical solution provided by the invention, a kind of consumer waste leachate provided in an embodiment of the present invention
Liquid purifying treatment method and system and application, cost is lower, has saved water resource, realizes resource circulation utilization.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill in field, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structure diagram of Domestic Waste Leachate cleaning treatment system provided in an embodiment of the present invention；
Fig. 2 is the local flow diagram of Domestic Waste Leachate cleaning treatment system provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to protection scope of the present invention.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment one
A kind of Domestic Waste Leachate purifying treatment method, including：
Step A：Pretreatment, Domestic Waste Leachate is pre-processed by setting pot and regulating reservoir；
Setting pot, sewage are inevitably mixed into silt particle during migrating, flowing and collecting.If the sand in sewage is not
Advance sedimentation separation removal, then can influence the operation of subsequent processing device.It most importantly wears pump, block pipe network, interference
Even destroy biochemical processing process process.Setting pot is mainly used for removing grain size in sewage and is more than 0.2mm, and density is more than 2.65t/
The sand grains of cubic meter, with facilities such as protective conduit, valves from wearing and blocking.Its operation principle is using Gravity Separation as base
Plinth, therefore the water inlet flow velocity of setting pot should be controlled so that heavy inorganic particle sinks, and organic suspension particle can be with current
It takes away.It is the public equipment of water treatment field, repeats no more.
Regulating reservoir：Having homogenizing water quality, water of regulating and storing or having percolate concurrently for being set before percolate treatment facility is handled
The structures of function.It is the public equipment of water treatment field, repeats no more.
Step B：Anaerobic reaction processing carries out anaerobic reaction processing by anaerobic reactor UASB；
Anaerobic reaction is exactly to remove most COD and the big of difficult degradation in Domestic Waste Leachate by organic decomposition to divide
Son.Anaerobic reactor UASB, waste water is by the bottom of introducing reactor as uniform as possible, and sewage is upwardly through including granule sludge
Or the Sludge Bed of floc sludge.Anaerobic reaction is happened at the process of waste water and mud granule contact.It is generated under anaerobic state
Biogas (mainly methane and carbon dioxide) causes internal cycling, this is favourable for the formation and maintenance of granule sludge.
Some gases that sludge blanket is formed are attached on mud granule, and attachment and the gas without adhering to rise to reactor head.On
The sludge for being raised to surface hits the bottom of phase reactor gas launcher, and the sludge flco of bubbles attached is caused to deaerate.Bubble
Mud granule will be deposited to the surface of Sludge Bed after release, and attachment and the gas without adhering to are collected into the three of reactor head
The collection chamber of phase separator.
Anaerobic reactor UASB belongs to ripe business machine, structure and application, belongs to common knowledge, no longer superfluous
It states.
Step C：Membrane filtration carries out membrane filtration processing by me.mbrane bioreactor MBR；
Me.mbrane bioreactor MBR is effectively gone using nitrification and denitrification, anoxic and aerobic metabolism by microorganism
Except the nitrogen in waste water, organic pollution is reduced.It is a kind of new, high-efficient sewage being combined by UF membrane and biological treatment
Water technology.Its Nitrogen Removal Mechanism of industrial nitrogenous effluent includes two basic processes of nitrification and denitrification.Nitrification is made
With referring to the process of that by mineralized nitrogen be nitrate nitrogen, which relies primarily on two class aerobic autotrophic of nitrite bacteria and nitrobacteria
Bacterium is completed.
Me.mbrane bioreactor MBR belongs to ripe business machine, structure and application, belongs to common knowledge, no longer superfluous
It states.
Step D：Nanofiltration NF processing；
Nanofiltration NF be using pressure as driving force, for remove multivalent ion, part monovalent ion and molecular weight 200~
The membrane separating process of organic matter between 1000.Nanofiltration NF is used for the smaller substance of relative molecular mass, such as inorganic salts or grape
The small organic molecules such as sugar, sucrose are separated from solvent.Nanofiltration is also known as low pressure reverse osmosis, is one kind of membrane separation technique
Emerging field, separating property between ultrafiltration, allow some inorganic salts and some solvents through film, so as to reach between reverse osmosis
To separated effect.
Nanofiltration NF processors, also referred to as nanofiltration NF processing unit belong to ripe business machine, structure and application, belong to
In common knowledge, repeat no more.
Step E：Reverse osmosis (RO) processing；
Reverse osmosis (RO) processing is in the case where being acted on higher than the pressure of osmotic pressure, and solvent (such as water) enters the low of film by semi-permeable membrane
Side is pressed, and the other components (such as salt) in solvent are blocked in the high-pressure side of film and are discharged with concentrated solution, effectively divide so as to reach
From process.
Reverse osmosis also known as reverse osmosis, one kind isolate the UF membrane operation of solvent using pressure differential as motive force from solution.
Pressure is applied to the feed liquid of film one side, when pressure is more than its osmotic pressure, solvent can be made reversed against the direction of naturally osmotic
Infiltration.So as to the solvent penetrated in the low-pressure side of film, i.e. penetrating fluid；The solution that high-pressure side is concentrated, i.e. concentrate.If
With reverse-osmosis treated seawater, fresh water is obtained in the low-pressure side of film, brine is obtained in high-pressure side.
Reverse osmosis (RO) processor, also referred to as reverse osmosis unit belong to ripe business machine, structure and application, belong to
Common knowledge repeats no more.For this example, the afterbody in reverse osmosis unit substitutes conventional reverse osmosis with sea water desalination membrane
Film can improve water quality；Such as there are nine reverse osmosis membranes, 7# and 9# for a certain model (HF-RO1.6-2.3) reverse osmosis unit
Film is afterbody, with sea water desalination membrane (SW30HRLE-370/34i), substitutes the conventional reverse osmosis film used originally
(BW30FR-400/34i).Treated for certain an example as a result, table specific as follows：
As it can be seen that the middle water that processing is completed is used directly for industrial boiler water-supply, for high hardness soft again in addition to hardness
Change；In some cases, it is used directly for industrial boiler water-supply for what hardness after processing met.
This example, in order to bating step E during treated water further include：
Step F：Ion-exchange treatment；
It is swapped, extract or is removed in solution by means of the ion in the ion and weak solution in Solid-state Ion-exchange agent
Some ions.
Ion-exchange treatment device belongs to ripe business machine, structure and application, belongs to common knowledge, no longer superfluous
It states.
Embodiment two
As shown in Figure 1, a kind of Domestic Waste Leachate cleaning treatment system, including configuring the setting pot of connection successively, adjusting
Save pond, anaerobic reactor, me.mbrane bioreactor, nanofiltration processor and reverse-osmosis treated device.After the reverse-osmosis treated device again
Connect ion-exchange treatment device.
As shown in Fig. 2, adding a set of ion exchange system after to reverse osmosis (RO) processor, ensure the hardness number of water outlet
It is up to standard.It is detected after processing by specialty, technique final outflow water is (industrial boiler water-supply water quality GB/T 1576-2008) up to standard.
The main technique that i.e. Domestic Waste Leachate prepares industrial boiler water-supply is：
Domestic Waste Leachate → pretreatment (setting pot+regulating reservoir)+anaerobic reactor (UASB)+me.mbrane bioreactor
(MBR)+nanofiltration (NF)+reverse osmosis (RO)+ion exchange → water outlet
Embodiment three
A kind of application of middle water after Domestic Waste Leachate purified treatment, garbage leachate after processing directly should only
For industrial boiler water-supply.
The technical method that Domestic Waste Leachate prepares industrial boiler water-supply changes traditional life garbage leachate only
Can water in output industry, the purposes be generally used for streets watering, clean, flush the toilet etc.；The technical method realizes water in industry
Quality upgrades, and has widened the intrinsic thinking of Domestic Waste Leachate processing, extends going for Domestic Waste Leachate processing end
To with the mode of recycling, really realize that resource recycles.
This method is used as the purposes such as fire-fighting, urban afforestation, vehicle rinsing and construction for leachate treatment outlet water at tail end
Most direct data supporting and water source supply are provided, outlet water at tail end will become valuable resource at that time, realize economy and ring
Border benefit.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (5)
1. a kind of Domestic Waste Leachate purifying treatment method, which is characterized in that including：
Step A：Pretreatment, Domestic Waste Leachate is pre-processed by setting pot and regulating reservoir；
Step B：Anaerobic reaction processing carries out anaerobic reaction processing by anaerobic reactor；
Step C：Membrane filtration carries out membrane filtration processing by me.mbrane bioreactor；
Step D：Nanofiltration is handled；
Step E：Reverse-osmosis treated；Afterbody in reverse osmosis unit uses sea water desalination membrane；
Processing is completed.
2. Domestic Waste Leachate purifying treatment method according to claim 1, which is characterized in that after the step E
It further includes：
Step F：Ion-exchange treatment.
3. a kind of Domestic Waste Leachate cleaning treatment system, which is characterized in that including configuring the setting pot of connection successively, adjusting
Pond, anaerobic reactor, me.mbrane bioreactor, nanofiltration processor and reverse-osmosis treated device.
4. Domestic Waste Leachate cleaning treatment system according to claim 3, which is characterized in that the reverse osmosis place
Ion-exchange treatment device is reconnected after managing device.
5. the application of the middle water after a kind of Domestic Waste Leachate purified treatment, which is characterized in that directly apply to Industrial Boiler
Feedwater.
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| CN201711387313.7A CN108046529A (en) | 2017-12-20 | 2017-12-20 | A kind of Domestic Waste Leachate purifying treatment method and system and application |
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| CN201711387313.7A CN108046529A (en) | 2017-12-20 | 2017-12-20 | A kind of Domestic Waste Leachate purifying treatment method and system and application |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603128A (en) * | 2012-04-05 | 2012-07-25 | 光大环保科技发展（北京）有限公司 | Method for advanced treatment and recycling of landfill leachate |
| CN204939209U (en) * | 2015-08-31 | 2016-01-06 | 南通天蓝环保能源成套设备有限公司 | A kind of high-concentration garbage percolate process and detecting and controlling system |
| CN106746129A (en) * | 2017-01-19 | 2017-05-31 | 启迪桑德环境资源股份有限公司 | Percolate evaporation and crystallization system |
-
2017
- 2017-12-20 CN CN201711387313.7A patent/CN108046529A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603128A (en) * | 2012-04-05 | 2012-07-25 | 光大环保科技发展（北京）有限公司 | Method for advanced treatment and recycling of landfill leachate |
| CN204939209U (en) * | 2015-08-31 | 2016-01-06 | 南通天蓝环保能源成套设备有限公司 | A kind of high-concentration garbage percolate process and detecting and controlling system |
| CN106746129A (en) * | 2017-01-19 | 2017-05-31 | 启迪桑德环境资源股份有限公司 | Percolate evaporation and crystallization system |
Non-Patent Citations (2)
| Title |
|---|
| 中国环境保护产业协会: "《国家重点环境保护实用技术及示范工程汇编》", 30 September 2007, 中国环境科学出版社 * |
| 李月红等: "《化工原理（第二版）》", 31 March 2016, 中国环境出版社 * |
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