CN110066075A - The landfill leachate advanced treatment apparatus and its technique of in-situ regeneration granule electrode - Google Patents
The landfill leachate advanced treatment apparatus and its technique of in-situ regeneration granule electrode Download PDFInfo
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- CN110066075A CN110066075A CN201910459282.4A CN201910459282A CN110066075A CN 110066075 A CN110066075 A CN 110066075A CN 201910459282 A CN201910459282 A CN 201910459282A CN 110066075 A CN110066075 A CN 110066075A
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 113
- 239000008187 granular material Substances 0.000 title claims abstract description 77
- 238000011069 regeneration method Methods 0.000 title claims abstract description 42
- 230000008929 regeneration Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 249
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 203
- 238000010992 reflux Methods 0.000 claims abstract description 52
- 230000003647 oxidation Effects 0.000 claims abstract description 21
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000013618 particulate matter Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims description 29
- 238000010926 purge Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 27
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 23
- 229910052719 titanium Inorganic materials 0.000 claims description 23
- 239000010936 titanium Substances 0.000 claims description 23
- 230000002779 inactivation Effects 0.000 claims description 21
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 20
- 238000005273 aeration Methods 0.000 claims description 16
- 239000010813 municipal solid waste Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
- 239000003344 environmental pollutant Substances 0.000 claims description 10
- 231100000719 pollutant Toxicity 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims description 9
- 238000006731 degradation reaction Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 7
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 6
- 241000009298 Trigla lyra Species 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims 2
- 238000001764 infiltration Methods 0.000 claims 2
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- 150000001336 alkenes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229910017835 Sb—Sn Inorganic materials 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
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- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode and its methods, belong to landfill leachate treatment field.Apparatus of the present invention first pass through anaerobism and aerobic unit cuts down bio-degradable component in percolate, wherein particulate matter component is intercepted followed by the strainer in filter element, and then wherein component difficult to degrade is removed using electrolysis cells and enhance its biochemical property, percolate intensive treatment effect after being handled finally by refluxing portion.Electrolysis cells can realize electrocatalytic oxidation and electrode regeneration by being alternately pumped into percolate or clear water.Compared to traditional electrode method, process effect of the present invention is good, and at low cost, energy consumption is small.
Description
Technical field
The invention belongs to landfill leachate treatment fields, and in particular to a kind of landfill leachate of in-situ regeneration granule electrode
Advanced treatment apparatus and its technique.
Background technique
The garbage disposal pattern of rural areas in our country is mainly " family classification, village are collected, town is transported, county's processing ".Due to working as
Preceding not yet sound to the receipts fortune system of such rubbish, in some areas, house refuse is often trapped in garbage transfer station a couple of days
Or even the several months.In the process, rubbish generate landfill leachate in default of corresponding environmental sanitation support facility, often directly under
It seeps polluted underground water or is washed away by rainwater etc. into surface water, seriously threaten rural area Environmental security.
The processing method of landfill leachate can be divided mainly at present: bioanalysis is such as degraded using microbiological oxidation dirty
Object is contaminated, this method energy consumption is small but limited for bio-refractory contaminant removal capacity in percolate；Physico-chemical process, such as by adding
Flocculant etc. carries out flocculating setting to pollutant, and this method removal effect rate is high but with high costs and is easy to produce secondary pollution；
Advanced oxidation processes, such as electrochemical process pass through generation Strong oxdiative radical oxidation degradation of contaminant, although this method also has preferably
It cuts down the effect of pollutant but is influenced by factors such as its cost and mass-transfer efficiencies, in the percolate of villages and small towns area garbage transfer station
Using extremely limited.
Summary of the invention
How electrocatalytic oxidation is steadily used to handle leachate in garbage transfer station by the technical problem to be solved in the present invention,
And a kind of landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode is proposed for above-mentioned status.The present invention is by setting
Interior circulation is set, combines the biochemical property of AO technique and the ability of Electro-catalytic Oxidation Process persistent organic pollutants, enhances work
Skill is for villages and small towns leachate in garbage transfer station processing capacity.
The present invention it is specific the technical solution adopted is as follows:
In a first aspect, the present invention provides a kind of landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode,
Including adjusting unit, anaerobic unit, aerobic unit, filter element, electrolysis cells and water unit；The water outlet for adjusting unit
Mouth is connected by the pipeline with the first water pump with anaerobic unit bottom water inlet, is filled out in anaerobic unit filled with anaerobic organism
Material；The water outlet of the anaerobic unit is connected by the pipeline with the second water pump with aerobic unit bottom water inlet, aerobic list
Aerobe filler is filled in member, and aerobe filler bottom is laid with the aerator of the first air pump of connection；It is described aerobic
The water outlet of unit is connected by the pipeline with third water pump with the filter element water inlet of filter element lower part；Filter element
Middle part is equipped with strainer along level cross-sectionn direction Man Pu, and the outer wall top of filter element is equipped with water outlet, filter element bottom
It is provided with mud discharging mouth；The water outlet of filter element is connected by pipeline with electrolysis cells water inlet；Electrolysis cells both ends are provided with
A pair of of the titanium plate electrode being connected with external power supply is filled with granule electrode between a pair of of titanium plate electrode；It is located at particle in electrolysis cells
Side wall above electrode is equipped with the first water outlet of electrolysis cells, and the first water outlet of electrolysis cells passes through pipeline and water unit phase
Even；Electrolysis cells bottom is laid with the aerator of the second air pump of connection；The sidewall bottom of electrolysis cells is equipped with electrolysis cells second
Water outlet；The water unit is connected to by the first return pipe with the first reflux pump to the water inlet of anaerobic unit, institute
It states the second water outlet of electrolysis cells and adjusting unit water inlet is connected to by the second return pipe with the second reflux pump.
Second aspect, the present invention is on the basis of first aspect, it is further provided a kind of preferred embodiment: the electrolysis
Unit has two sets, is connected between filter element and water unit in parallel；The water outlet of filter element passes through threeway
Switching valve is connect with the electrolysis cells water inlet of two sets of electrolysis cells, for selecting a water inlet in two sets of electrolysis cells；Two sets of electricity
The first water outlet of electrolysis cells of solution unit is connected to water unit, and the second water outlet of electrolysis cells of two sets of electrolysis cells is equal
It is back to by the second reflux pump and adjusts unit water inlet.
On the basis of above-mentioned both sides scheme, following preferred embodiment can also be further provided for.
Preferably, the aerobe filler and anaerobic organism filler are polyethylene Ball-type packing.
Preferably, the side wall of the filter element or top are equipped with the first clear water water inlet pipe, and the first clear water water inlet pipe
Upper the first purge valve with control piper opening and closing.
Preferably, the side wall of the electrolysis cells is equipped with the second clear water water inlet pipe, and band on the second clear water water inlet pipe
The second purge valve for thering is control piper to be opened and closed.
Preferably, the height of the strainer is located between the inlet and outlet of filter element.
Preferably, the strainer is installed on the inner wall of filter element with detachable form.
Preferably, the aerator is aeration tube or aeration plate.
Preferably, two sets of electrolysis cells described in second aspect share same set of external power supply and the second air pump.
Above-mentioned landfill leachate advanced treatment apparatus can be further divided into in-situ regeneration grain according to operation process difference
The intermittent landfill leachate advanced treatment apparatus of sub-electrode and the continous way landfill leachate of in-situ regeneration granule electrode are deep
Processing unit is spent, can be selected according to treating capacity and pork barrel etc..
Wherein, the processing unit that first aspect provides can be used as intermittent landfill leachate advanced treatment apparatus, only set
A set of electrolysis cells are set, it keeps intermittent during operation and is pumped into landfill leachate.When the granule electrode in electrolysis cells loses
When living or partial inactivation, temporarily ceases device water inlet and adjust landfill leachate of short duration be stored in unit, then to electrolysis
Injected clear water carries out the in-situ regeneration of granule electrode in unit, and after granule electrode regeneration ending, recovery device is intake again, shape
At the intermittent process for being pumped into landfill leachate.
And the processing unit that second aspect provides can be used as continous way landfill leachate advanced treatment apparatus, be equipped with electricity
Unit is solved, is connected between filter element and water unit in parallel, it can be switched over by two sets of electrolysis cells
It uses, while a set of electrolysis cells are regenerated, another set of electrolysis cells carry out landfill leachate advanced treating, then constantly
The continuous processing of landfill leachate is realized in switching.
Based on processing unit described in above-mentioned first aspect, invention further provides a kind of landfill leachate is intermittent
Deep treatment method, its step are as follows:
1) landfill leachate is accessed and is adjusted in unit, percolate is pumped by anaerobic unit by the first water pump, and under
And the upper anaerobic organism filler that passes through carries out anaerobic biochemical treatment；
2) by the second water pump, by anaerobic unit, treated that landfill leachate is pumped into aerobic unit, and leads to from bottom to top
It crosses aerobe filler and carries out aerobic treatment；Pass through the first gas of aerobic unit peripheral hardware during aerobic treatment
Pump carries out aerobic unit inside to continue aeration；
3) by third water pump, by aerobic unit, treated that landfill leachate is pumped into filter element, makes landfill leachate
From bottom to top by strainer, the particulate matter of aperture of filter screen is greater than with the size being isolated in landfill leachate；When the strainer in unit
When blocking, the first purge valve on the first clear water water inlet pipe is opened, strainer is backwashed using clear water；Backwash produces
Raw a large amount of particulate matters are discharged from the mud discharging mouth of bottom；
4) will be discharged into first set electrolysis cells by filtered landfill leachate, the granule electrode in electrolysis cells and
Titanium plate electrode and external power supply form three-dimensional electrolysis system, are constantly aerated to percolate by the second air pump, while benefit
Voltage is applied to two panels titanium plate electrode with external power supply, by granule electrode to the pollutant of biochemical degradation non-in landfill leachate into
Row electrocatalytic oxidation to remove Recalcitrant chemicals in percolate, and improves the biochemical property of percolate；
5) through electrolysis cells, treated that tail water is stored in water unit, the part tail water outlet in water unit, remains
Remaining tail water is back to anaerobic unit by the first reflux pump, and mixes with the landfill leachate inputted in unit is adjusted, again
Biochemical treatment and electro-catalysis processing are carried out, the treatment effect of landfill leachate is strengthened；
6) when the granule electrode inactivation or partial inactivation in electrolysis cells, the first water pump, the second water pump, third water are closed
Pump, the first reflux pump, electrolysis cells water inlet and the first water outlet of electrolysis cells, and water inlet is stored in and is adjusted in unit；With
The second water outlet of electrolysis cells is opened afterwards, and the landfill leachate handled in electrolysis cells is drained by adjusting list by the second reflux pump
Member, until the second reflux pump and the second water outlet of electrolysis cells are closed when percolate is drained in unit；The second clear water is opened again
Valve injects pure water to electrolysis cells, and continued electrolysis is until granule electrode completes regeneration；Electrolysis cells second are finally opened to be discharged
Mouthful, and regenerative wastewater in unit is back to by adjusting unit by the second reflux pump, close the second reflux pump, electrolysis cells second
Water outlet reopens the first water pump, the second water pump, third water pump and electrolysis cells water inlet, infuses again to electrolysis cells
Enter landfill leachate to start to process.
Based on processing unit described in above-mentioned second aspect, invention further provides a kind of landfill leachate continous ways
Deep treatment method, its step are as follows:
1) landfill leachate is accessed and is adjusted in unit, percolate is pumped by anaerobic unit by the first water pump, and under
And the upper anaerobic organism filler that passes through carries out anaerobic biochemical treatment；
2) by the second water pump, by anaerobic unit, treated that landfill leachate is pumped into aerobic unit, and leads to from bottom to top
It crosses aerobe filler and carries out aerobic treatment；Pass through the first gas of aerobic unit peripheral hardware during aerobic treatment
Pump carries out aerobic unit inside to continue aeration；
3) by third water pump, by aerobic unit, treated that landfill leachate is pumped into filter element, makes landfill leachate
From bottom to top by strainer, the particulate matter of aperture of filter screen is greater than with the size being isolated in landfill leachate；When the strainer in unit
When blocking, the first purge valve on the first clear water water inlet pipe is opened, strainer is backwashed using clear water；Backwash produces
Raw a large amount of particulate matters are discharged from the mud discharging mouth of bottom；
4) will be discharged into first set electrolysis cells by filtered landfill leachate, the granule electrode in electrolysis cells and
Titanium plate electrode and external power supply form three-dimensional electrolysis system, are constantly aerated to percolate by the second air pump, while benefit
Voltage is applied to two panels titanium plate electrode with external power supply, by granule electrode to the pollutant of biochemical degradation non-in landfill leachate into
Row electrocatalytic oxidation to remove Recalcitrant chemicals in percolate, and improves the biochemical property of percolate；
5) through electrolysis cells, treated that tail water is stored in water unit, the part tail water outlet in water unit, remains
Remaining tail water is back to anaerobic unit by the first reflux pump, and mixes with the landfill leachate inputted in unit is adjusted, again
Biochemical treatment and electro-catalysis processing are carried out, the treatment effect of landfill leachate is strengthened；
6) when granule electrode inactivation in first set electrolysis cells or partial inactivation, stop the electrolysis of first set electrolysis cells
And water inlet, by three-way switch valve, by filter element, treated that percolate is pumped into continues electricity in second set of electrolysis cells and urge
Change oxidation processes；
7) first set is electrolysed by the second water outlet of electrolysis cells for opening first set electrolysis cells again by the second reflux pump
Landfill leachate in unit drains into adjusting unit, until the second reflux pump and electrolysis cells second are closed when percolate is drained
Water outlet；Then the second purge valve on first set electrolysis cells is opened, list is electrolysed to first set by the second clear water water inlet pipe
Pure water is injected in member, voltage then is applied to two panels titanium plate electrode again, and electrolyzing pure water makes granule electrode in-situ regeneration, regenerates
The electrolysis waste solution generated in the process constantly passes through the injection of the second reflux pump and adjusts in unit, and progress is mixed with new refuse percolate
Water quality adjustment；After the completion of regeneration, the second purge valve, the electrolysis cells second of the second reflux pump and first set electrolysis cells are closed
Water outlet, waiting refill landfill leachate；
8) whenever granule electrode inactivation in wherein a set of electrolysis cells or partial inactivation, by Vavle switching, make current
Electrolysis cells stop working, start to carry out granule electrode regeneration, and another set of regenerated electrolysis cells are completed then start to connect
Percolate is received, electrocatalytic oxidation processing is carried out.
The present invention in terms of existing technologies, has the following beneficial effects:
1) the device of the invention can sufficiently combine AO reaction member biochemical degradation ability and electrolysis cells oxidative degradation difficult
Degradation of organic substances.Landfill leachate after electrolysis cells are handled biochemical property improve, by be arranged reflux unit make to be discharged
Unit inner part tail water is back to anaerobic unit again, strengthens facility final process effect.
2) granule electrode of the invention can realize in-situ regeneration in electrolysis cells, greatly save the O&M cost of facility.
Detailed description of the invention
Fig. 1 is the landfill leachate advanced treatment apparatus schematic diagram of the in-situ regeneration granule electrode in embodiment 1；
Fig. 2 is the enlarged diagram of filter element and electrolysis cells in Fig. 1；
Fig. 3 is the landfill leachate advanced treatment apparatus schematic diagram of the in-situ regeneration granule electrode in embodiment 2；
Appended drawing reference in figure: unit 1, the first water pump 2, anaerobic unit packing layer 3, anaerobic unit 4, aerobic unit are adjusted and is filled out
The bed of material 5, aerobic unit 6, the second water pump 7, the first air pump 8, third water pump 9, filter element water inlet 10, filter element 11, titanium
Plate electrode 12, external power supply 13, the second air pump 14, granule electrode 15, water unit 16, the first reflux pump 17, the second reflux pump
18, the second purge valve 19, the first purge valve 20, tail water 21, electrolysis cells water inlet 22, the second water outlet of electrolysis cells 23, electricity
Solve the first water outlet of unit 24, strainer 25, mud discharging mouth 26, electrolysis cells 27, three-way switch valve 28.
Specific embodiment
The present invention is further elaborated and is illustrated with reference to the accompanying drawings and detailed description.Each implementation in the present invention
The technical characteristic of mode can carry out the corresponding combination under the premise of not conflicting with each other.
Embodiment 1
As shown in Figure 1, for the landfill leachate advanced treatment apparatus of one of the present embodiment in-situ regeneration granule electrode,
The device mainly includes adjust unit 1, anaerobic unit 4, aerobic unit 6, filter element 11, electrolysis cells 27 and water unit
16。
After landfill leachate to be processed enters device, it is first stored in and adjusts in unit 1, it is even in unit 1 adjusting
Water-saving matter.The water outlet for adjusting unit 1 is connected by the pipeline with the first water pump 2 with 4 bottom water inlet of anaerobic unit, is detested
Anaerobic organism filler 3 is filled in oxygen unit 4.In the present embodiment, the anaerobic organism filler 3 filled in anaerobic unit 4 is poly- second
Alkene Ball-type packing hangs anaerobic organism film in the process of running on filler, can carry out anaerobic biochemical treatment to percolate.Anaerobic unit
4 water outlet is located at the top of anaerobic organism filler 3, and water outlet passes through pipeline with the second water pump 7 and 6 bottom of aerobic unit
Water inlet is connected.Aerobe filler 5 is filled in aerobic unit 6, aerobe filler 5 equally uses poly- second in the present embodiment
Alkene Ball-type packing hangs aerobic biologic membrane on filler in operational process, can carry out aerobic treatment to percolate.And aerobic unit
For dissolved oxygen concentration needed for guaranteeing aerobic reaction in 6,5 bottom of aerobe filler is laid with the aeration of the first air pump 8 of connection
Device.The equipment such as aeration tube or aeration plate can be used in aerator.The water outlet of aerobic unit 6 is by having third water pump 9
Pipeline be connected with the filter element water inlet 10 of 11 lower sidewall of filter element.11 middle part of filter element is along level cross-sectionn
Direction is equipped with strainer 25, and strainer 25 is removably fixed on 11 inner wall of filter element, and completely spreads entire cross section.It crosses
The outer wall top for filtering unit 11 is equipped with water outlet, and the height of strainer 25 is located between the inlet and outlet of filter element 11,
Making the water inlet of lower section must just can enter above strainer by filtering.11 bottom of filter element is provided with the row for body refuse to be discharged
Mud mouth 26.The top side wall of filter element 11 is equipped with the first clear water water inlet pipe, and control piper is had on the first clear water water inlet pipe
First purge valve 20 of opening and closing can backwash the strainer 25 in cell, what is flushed out is big by opening the first purge valve 20
Amount particulate matter can be discharged by mud discharging mouth 26.The water outlet of filter element 11 passes through the electricity of pipeline and 27 sidewall bottom of electrolysis cells
It solves unit water inlet 22 to be connected, the water inlet between filter element 11 and electrolysis cells 27 can be realized by flow by gravity, certainly
It can also be realized by setting water pump.27 both ends of electrolysis cells are provided with a pair of of the titanium plate electrode 12 being connected with external power supply 13,
Granule electrode 15 is filled between a pair of of titanium plate electrode 12.The side wall for being located at 15 top of granule electrode in electrolysis cells 27 is equipped with
The first water outlet of electrolysis cells 24, the first water outlet of electrolysis cells 24 are connected by pipeline with water unit 16.Electrolysis cells 27
Bottom is laid with the aerator of the second air pump 14 of connection, is aerated for the granule electrode 15 to top.Electrolysis cells 27
Side wall is equipped with the second clear water water inlet pipe, and the second purge valve 19 with control piper opening and closing on the second clear water water inlet pipe, when
When granule electrode 15 in electrolysis cells 27 inactivates, openable second purge valve 19 injects pure water, then passes through electrolyzing pure water reality
Existing granule electrode 15 regenerates.The sidewall bottom of electrolysis cells 27 is equipped with the second water outlet of electrolysis cells 23, in regenerative process
Middle discharge electrolysis waste solution.The second water outlet of electrolysis cells 23 is connected to adjusting by the second return pipe with the second reflux pump 18
Electrolysis waste solution containing high density pollution object mix with new refuse percolate quenched, reduction pair by 1 water inlet of unit
The impact of subsequent AO technique.Water unit 16 is connected to by the first return pipe with the first reflux pump 17 to anaerobic unit 4
Water inlet, realize partial reflux.After 27 electrocatalytic oxidation of electrolysis cells, biochemical property improves landfill leachate, passes through
Tail water 21 in water unit 16 is re-started AO- electricity by certain reflux ratio by the first reflux pump 17 together with fresh percolate
Catalysis oxidation Combined Treatment, can intensifying device final process efficiency, and reduce AO processing load.
In above-mentioned apparatus, corresponding control valve is can be set in the inlet and outlet of each unit, in order to pass in and out
The control of water.
The present embodiment is in accordance with the following steps handled landfill leachate:
1) leachate in garbage transfer station is accessed and is adjusted in unit 1, percolate is pumped by anaerobic unit by the first water pump
4, and anaerobic biochemical treatment is carried out by anaerobic unit packing layer 3 from bottom to top；
2) treated that landfill leachate is pumped into aerobic unit 6 by anaerobic unit 4 for the second water pump 7, and leads to from bottom to top
It crosses aerobic unit packing layer 5 and carries out aerobic treatment.Aerobic unit 6 is externally provided with the first air pump 8, holds to aerobic unit 6
Continuous aeration；
3) treated that landfill leachate is pumped into filter element 11 by aerobic unit 6 for third water pump 9.In filter element 11
Portion is equipped with detachable strainer 25.Landfill leachate passes through 11 packing layer of filter element from bottom to top to be isolated in landfill leachate
Particulate matter.Purge valve is equipped at the top of filter element 11, when the strainer 25 in cell blocks, openable purge valve is to filter
Net 25 is backwashed.Cell bottom is equipped with mud discharging mouth 26 and is used to be discharged a large amount of particulate matters that backwash generates；
4) landfill leachate subsequently flows into electrolysis cells 27.Granule electrode 15 and titanium plate electrode 12 in electrolysis cells 27 with
And external power supply 13 forms three-dimensional electrolysis system, carries out electrocatalytic oxidation to landfill leachate, to remove difficult drop in percolate
Pollutant is solved, and improves the biochemical property of percolate.Electrolysis cells 27 are externally provided with the second air pump 14, hold to electrolysis cells 27
Continuous aeration.It is equipped with the second purge valve 19 at the top of electrolysis cells 27, when the granule electrode 15 in electrolysis cells 27 inactivates, closes
Electrolysis cells water inlet 22 empties internal landfill leachate, opens the second purge valve 19, carries out pure water electrolysis, keeps particle electric
Pollutant on pole 15 reenters in pure water, realizes the in-situ regeneration of granule electrode 15.In regenerative process, can constantly it replace pure
Water keeps electrode regeneration more thorough.After regenerative process, the waste water in cell is back to by the second reflux pump 18
Adjust unit 1.
5) through treated the tail water 21 of electrolysis cells 27, biochemical property is improved, and the part tail water 21 in water unit 16 is logical
It crosses the first reflux pump 17 and is back to anaerobic unit 4, lay equal stress on newly by above-mentioned biochemical process, strengthen the processing effect of landfill leachate
Fruit, rest part outlet.
Compared to traditional individually three-diemsnional electrode treatment process or independent AO treatment process, coupling is constituted both in the present invention
Close symbiosis, three-diemsnional electrode processing for percolate biodegradability can promotion be it is essential, the technique is for villages and small towns
The landfill leachate of garbage transfer station has be more good process performance.
Embodiment 2
In the present embodiment, processing unit overall structure is same as Example 1.Wherein, granule electrode 15 passes through as follows list
Method preparation: it is 15 basis material of granule electrode that choose appropriate particle size, which be 2~3mm partial size cocoanut active charcoal,.Granule electrode
15 need before use by pretreatment and supported active catalyst.Preprocess method is as follows: using deionized water wash particle first
15 basis material of electrode 2~3 times, is then immersed in the solution of 1mol/L KOH, is stirred continuously lower water-bath and is boiled 3 times,
Continue 40 minutes every time.It takes out, above-mentioned 15 basis material of granule electrode is washed till neutrality with deionized water, and place it in ultrasound
Continue carrying out washing treatment 20min in water-bath, completes washing.15 basis material of granule electrode after taking out above-mentioned washing, at 95 DEG C
Under the conditions of dry 12h.Supported catalyst agent method is as follows: 15 basis material of granule electrode of pretreated drying being immersed in and is contained
0.1mol/L SbCl3、0.5mol/L SnCl4, 1.6g/L neopelex ethanol solution in, be ultrasonically treated 40min
So that catalyst component (Sb-Sn) is carried on basis material, 15 basis material of granule electrode that takes out that treated, in 80 DEG C of items
Dry 12h under part calcines 3h, can be used as granule electrode 15 after cooling makes then again in Muffle furnace under the conditions of 450 DEG C
With.
In the present embodiment, the granule electrode 15 in device can be inactivated gradually after prolonged, same to reduce cost
When maintain the operation of device normal table, when the granule electrode inactivation in electrolysis cells or when partial inactivation, temporarily cease device into
Water, and of short duration be stored in of landfill leachate is adjusted in unit, granule electrode is carried out then to injected clear water in electrolysis cells
In-situ regeneration, after granule electrode regeneration ending, recovery device is intake again, forms the intermittent mistake for being pumped into landfill leachate
Journey.Based on this 15 in situ regeneration method of granule electrode, a kind of intermittent advanced treating of landfill leachate is present embodiments provided
Method, its step are as follows:
1) landfill leachate is accessed and is adjusted in unit 1, percolate is pumped by anaerobic unit 4 by the first water pump 2, and certainly
The lower and upper anaerobic organism filler 3 that passes through carries out anaerobic biochemical treatment；
2) by the second water pump 7, by anaerobic unit 4, treated that landfill leachate is pumped into aerobic unit 6, and from lower and
It is upper that aerobic treatment is carried out by aerobe filler 5；Pass through the of 6 peripheral hardware of aerobic unit during aerobic treatment
One air pump 8, to carried out inside aerobic unit 6 continue aeration；
3) by third water pump 9, by aerobic unit 6, treated that landfill leachate is pumped into filter element 11, seeps rubbish
Filtrate passes through strainer 25 from bottom to top, and the particulate matter in 25 aperture of strainer is greater than with the size being isolated in landfill leachate；Work as unit
When interior strainer 25 blocks, the first purge valve 20 on the first clear water water inlet pipe is opened, strainer 25 is carried out using clear water
Backwash；The a large amount of particulate matters generated are backwashed to be discharged from the mud discharging mouth 26 of bottom；
4) it will be discharged into first set electrolysis cells 27 by filtered landfill leachate, the particle electricity in electrolysis cells 27
Pole 15 and titanium plate electrode 12 and external power supply 13 form three-dimensional electrolysis system, are constantly carried out to percolate by the second air pump 14
Aeration, at the same using external power supply 13 to two panels titanium plate electrode 12 apply voltage, by granule electrode 15 in landfill leachate not
The pollutant of biochemical degradation carries out electrocatalytic oxidation, to remove Recalcitrant chemicals in percolate, and improves the life of percolate
Change performance；
5) through electrolysis cells 27, treated that tail water 21 is stored in water unit 16, the part tail water 21 in water unit
Outlet, remaining tail water 21 is back to anaerobic unit 4 by the first reflux pump 17, and seeps with the rubbish inputted in unit 1 is adjusted
Filtrate mixing re-starts biochemical treatment and electro-catalysis processing, strengthens the treatment effect of landfill leachate；
6) when the granule electrode inactivation or partial inactivation in electrolysis cells, the first water pump 2, the second water pump 7, third are closed
Water pump 9, the first reflux pump 17, electrolysis cells water inlet 22 and the first water outlet of electrolysis cells 24, and water inlet is stored in adjusting
In unit 1；The second water outlet of electrolysis cells 23 is then turned on, the rubbish that will be handled in electrolysis cells 27 by the second reflux pump 18
Percolate, which drains into, adjusts unit 1, until close the second reflux pump 18 when percolate is drained in unit and electrolysis cells second are discharged
Mouth 23；The second purge valve 19 is opened again, injects pure water to electrolysis cells 27, and continued electrolysis is until granule electrode completes regeneration；Most
The second water outlet of electrolysis cells 23 is opened afterwards, and regenerative wastewater in unit is back to by the second reflux pump 18 and adjusts unit 1,
Close the second reflux pump 18, the second water outlet of electrolysis cells 23, reopen the first water pump 2, the second water pump 7, third water pump 9 with
And electrolysis cells water inlet 22, landfill leachate, which is injected, to electrolysis cells 27 again starts to process.
Embodiment 3
In example 2, since the regeneration of granule electrode 15 needs the long period, whole device can not be transported continuously
Row, therefore the device in embodiment 1 is further improved in the present embodiment, continuous fortune can be realized by switching
Row.
For the present embodiment for embodiment 1, difference is that electrolysis cells 27 have two sets, connects in parallel
Between filter element 11 and water unit 16.The water outlet of filter element 11 passes through three-way switch valve 28 and two sets of electrolysis cells
27 electrolysis cells water inlet 22 connects, for selecting a water inlet in two sets of electrolysis cells 27.The electrolysis of two sets of electrolysis cells 27
The first water outlet of unit 24 is connected to water unit 16, and the second water outlet of electrolysis cells 23 of two sets of electrolysis cells 27 passes through
Second reflux pump 18, which is back to, adjusts 1 water inlet of unit.Respective external power supply 13 can be respectively set in two sets of electrolysis cells 27
With the second air pump 14, same set of external power supply 13 and the second air pump 14 can also be shared.In the apparatus, a set of electrolysis cells into
The electrocatalytic oxidation of row landfill leachate is handled, and another set of electrolysis cells regenerate granule electrode by electrolyzing pure water.It is logical
Being used alternatingly for two sets of electrolysis cells is crossed, granule electrode may be implemented in in-situ regeneration and be completed at the same time landfill leachate electrolysis.And
And two sets of electrolysis cells 27 will have a large amount of high density pollution object, this some of the contaminants in the pure water after electrolytic regeneration
It needs to flow back and be handled again.But the load fluctuation of this effluent part is larger, and being directly entered anaerobic unit 4, to impact anaerobism anti-
Environment is answered, unstability is caused, therefore is back to and is adjusted in unit 1 in the present embodiment, it is first homogeneous with fresh leachate progress, subtract
Few subsequent load impact.
Processing unit based on the present embodiment can provide a kind of landfill leachate continous way deep treatment method, step
It is rapid as follows:
1) landfill leachate is accessed and is adjusted in unit 1, percolate is pumped by anaerobic unit 4 by the first water pump 2, and certainly
The lower and upper anaerobic organism filler 3 that passes through carries out anaerobic biochemical treatment；
2) by the second water pump 7, by anaerobic unit 4, treated that landfill leachate is pumped into aerobic unit 6, and from lower and
It is upper that aerobic treatment is carried out by aerobe filler 5；Pass through the of 6 peripheral hardware of aerobic unit during aerobic treatment
One air pump 8, to carried out inside aerobic unit 6 continue aeration；
3) by third water pump 9, by aerobic unit 6, treated that landfill leachate is pumped into filter element 11, seeps rubbish
Filtrate passes through strainer 25 from bottom to top, and the particulate matter in 25 aperture of strainer is greater than with the size being isolated in landfill leachate；Work as unit
When interior strainer 25 blocks, the first purge valve 20 on the first clear water water inlet pipe is opened, strainer 25 is carried out using clear water
Backwash；The a large amount of particulate matters generated are backwashed to be discharged from the mud discharging mouth 26 of bottom；
4) it will be discharged into first set electrolysis cells 27 by filtered landfill leachate, the particle electricity in electrolysis cells 27
Pole 15 and titanium plate electrode 12 and external power supply 13 form three-dimensional electrolysis system, are constantly carried out to percolate by the second air pump 14
Aeration, at the same using external power supply 13 to two panels titanium plate electrode 12 apply voltage, by granule electrode 15 in landfill leachate not
The pollutant of biochemical degradation carries out electrocatalytic oxidation, to remove Recalcitrant chemicals in percolate, and improves the life of percolate
Change performance；
5) through electrolysis cells 27, treated that tail water 21 is stored in water unit 16, the part tail water 21 in water unit
Outlet, remaining tail water 21 is back to anaerobic unit 4 by the first reflux pump 17, and seeps with the rubbish inputted in unit 1 is adjusted
Filtrate mixing re-starts biochemical treatment and electro-catalysis processing, strengthens the treatment effect of landfill leachate；
6) when the inactivation of granule electrode 15 in first set electrolysis cells 27 or partial inactivation, stop first set electrolysis cells 27
Electrolysis and water inlet, by three-way switch valve 28, by filter element 11, treated that percolate is pumped into second set of electrolysis cells 27
Continue electrocatalytic oxidation processing；
7) the second water outlet of electrolysis cells 23 for opening first set electrolysis cells 27 again, by the second reflux pump 18 by
Landfill leachate in a set of electrolysis cells 27, which drains into, adjusts unit 1, until when percolate is drained, close the second reflux pump 18 and
The second water outlet of electrolysis cells 23；Then open first set electrolysis cells 27 on the second purge valve 19, by the second clear water into
Water pipe injects pure water into first set electrolysis cells 27, then applies voltage to two panels titanium plate electrode 12 again, and electrolyzing pure water makes
15 in-situ regeneration of granule electrode, the electrolysis waste solution generated in regenerative process constantly pass through the injection of the second reflux pump 18 and adjust unit 1
In, it is mixed with new refuse percolate and carries out water quality adjustment；After the completion of regeneration, the second reflux pump 18 and first set electrolysis are closed
The second purge valve 19, the second water outlet of electrolysis cells 23 of unit 27, waiting refill landfill leachate；
8) whenever the inactivation of granule electrode 15 in wherein a set of electrolysis cells 27 or partial inactivation, by Vavle switching, make
Current electrolysis cells 27 stop working, and start to carry out granule electrode 15 to regenerate, and another set of regenerated electrolysis cells are completed
27 start to receive percolate, carry out electrocatalytic oxidation processing.
In present apparatus operational process, each operating parameter such as cell size, aerobic unit 6 and 27 aeration quantity of electrolysis cells,
Each water pump and reflux pump regurgitant volume, 15 loading of granule electrode, be both needed to according to practical inflow, influent quality, processing target and
Corresponding energy consumption adjusts accordingly.
Above-mentioned embodiment is only a preferred solution of the present invention, so it is not intended to limiting the invention.Have
The those of ordinary skill for closing technical field can also make various changes without departing from the spirit and scope of the present invention
Change and modification.Therefore all mode technical solutions obtained for taking equivalent substitution or equivalent transformation, all fall within guarantor of the invention
It protects in range.
Claims (10)
1. a kind of landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode, which is characterized in that including adjusting unit
(1), anaerobic unit (4), aerobic unit (6), filter element (11), electrolysis cells (27) and water unit (16)；The adjusting
The water outlet of unit (1) is connected by the pipeline with the first water pump (2) with anaerobic unit (4) bottom water inlet, anaerobic unit
(4) anaerobic organism filler (3) are filled in；The water outlet of the anaerobic unit (4) by with the second water pump (7) pipeline with
Aerobic unit (6) bottom water inlet is connected, and is filled with aerobe filler (5) in aerobic unit (6), and aerobe filler
(5) bottom is laid with the aerator of connection the first air pump (8)；The water outlet of the aerobic unit (6) is by having third water pump
(9) pipeline is connected with the filter element water inlet (10) of filter element (11) lower part；Along horizontal horizontal in the middle part of filter element (11)
Cross-wise direction, which is completely spread, to be equipped with strainer (25), and the outer wall top of filter element (11) is equipped with water outlet, filter element (11) bottom
It is provided with mud discharging mouth (26)；The water outlet of filter element (11) is connected by pipeline with electrolysis cells water inlet (22)；Electrolysis is single
First (27) both ends are provided with a pair of of the titanium plate electrode (12) being connected with external power supply (13), are filled between a pair of of titanium plate electrode (12)
Granule electrode (15)；It is located at the side wall above granule electrode (15) in electrolysis cells (27) and is equipped with the first water outlet of electrolysis cells
(24), the first water outlet of electrolysis cells (24) is connected by pipeline with water unit (16)；Electrolysis cells (27) bottom, which is laid with, to be connected
Connect the aerator of the second air pump (14)；The sidewall bottom of electrolysis cells (27) is equipped with the second water outlet of electrolysis cells (23)；Institute
Water unit (16) is stated to be connected to by the first return pipe with the first reflux pump (17) to the water inlet of anaerobic unit (4),
Second water outlet of electrolysis cells (23) is connected to by the second return pipe with the second reflux pump (18) and adjusts unit (1)
Water inlet.
2. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1, which is characterized in that
The electrolysis cells (27) have two sets, are connected between filter element (11) and water unit (16) in parallel；It crosses
The water outlet for filtering unit (11) is connected by three-way switch valve (28) and the electrolysis cells water inlet (22) of two sets of electrolysis cells (27)
It connects, for selecting a water inlet in two sets of electrolysis cells (27)；The first water outlet of electrolysis cells (24) of two sets of electrolysis cells (27)
It is connected to water unit (16), the second water outlet of electrolysis cells (23) of two sets of electrolysis cells (27) passes through the second reflux pump
(18) it is back to and adjusts unit (1) water inlet.
3. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1 or 2, feature exist
In the aerobe filler (5) and anaerobic organism filler (3) are polyethylene Ball-type packing.
4. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1 or 2, feature exist
In the side wall of the filter element (11) or top are equipped with the first clear water water inlet pipe, and with control on the first clear water water inlet pipe
The first purge valve (20) of pipeline opening and closing.
5. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1 or 2, feature exist
In the side wall of the electrolysis cells (27) is equipped with the second clear water water inlet pipe, and has control piper on the second clear water water inlet pipe
The second purge valve (19) of opening and closing.
6. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1 or 2, feature exist
In the height of the strainer (25) is located between the inlet and outlet of filter element (11).
7. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 1 or 2, feature exist
In the strainer (25) is installed on the inner wall of filter element (11) with detachable form.
8. the landfill leachate advanced treatment apparatus of in-situ regeneration granule electrode according to claim 2, which is characterized in that
Two sets of electrolysis cells (27) share same set of external power supply (13) and the second air pump (14).
9. a kind of intermittent deep treatment method of landfill leachate using processing unit as described in claim 1, feature exist
In steps are as follows:
1) landfill leachate is accessed and is adjusted in unit (1), be pumped into percolate anaerobic unit (4) by the first water pump (2), and
Anaerobic biochemical treatment is carried out by anaerobic organism filler (3) from bottom to top；
2) by the second water pump (7), by anaerobic unit (4), treated that landfill leachate is pumped into aerobic unit (6), and under
And upper pass through aerobe filler (5) carry out aerobic treatment；During aerobic treatment outside by aerobic unit (6)
If the first air pump (8), to carrying out inside aerobic unit (6) continuing aeration；
3) by third water pump (9), by aerobic unit (6), treated that landfill leachate is pumped into filter element (11), makes rubbish
Percolate passes through strainer (25) from bottom to top, and the particulate matter in strainer (25) aperture is greater than with the size being isolated in landfill leachate；
When the strainer (25) in unit blocks, the first purge valve (20) on the first clear water water inlet pipe is opened, clear water pair is utilized
Strainer (25) is backwashed；The a large amount of particulate matters generated are backwashed to be discharged from the mud discharging mouth (26) of bottom；
4) it will be discharged into first set electrolysis cells (27) by filtered landfill leachate, the particle electricity in electrolysis cells (27)
Pole (15) and titanium plate electrode (12) and external power supply (13) form three-dimensional electrolysis system, by the second air pump (14) constantly to infiltration
Filtrate is aerated, while applying voltage to two panels titanium plate electrode (12) using external power supply (13), right by granule electrode (15)
The pollutant of non-biochemical degradation carries out electrocatalytic oxidation in landfill leachate, so that Recalcitrant chemicals in percolate are removed, and
Improve the biochemical property of percolate；
5) through electrolysis cells (27), treated that tail water (21) is stored in water unit (16), the part tail water in water unit
(21) outlet, remaining tail water (21) are back to anaerobic unit (4) by the first reflux pump (17), and with adjust in unit (1)
The landfill leachate of input mixes, and re-starts biochemical treatment and electro-catalysis processing, strengthens the treatment effect of landfill leachate；
6) when the granule electrode inactivation or partial inactivation in electrolysis cells, the first water pump (2), the second water pump (7), third are closed
Water pump (9), the first reflux pump (17), electrolysis cells water inlet (22) and the first water outlet of electrolysis cells (24), and water inlet is stored up
It is stored in and adjusts in unit (1)；The second water outlet of electrolysis cells (23) is then turned on, by the second reflux pump (18) by electrolysis cells
(27) landfill leachate handled in, which drains into, adjusts unit (1), until the second reflux pump is closed when percolate is drained in unit
(18) and the second water outlet of electrolysis cells (23)；The second purge valve (19) are opened again, are injected pure water to electrolysis cells (27), are continued
Electrolysis is until granule electrode completes regeneration；The second water outlet of electrolysis cells (23) finally are opened, and pass through the second reflux pump (18)
Regenerative wastewater in unit is back to and adjusts unit (1), closes the second reflux pump (18), the second water outlet of electrolysis cells (23),
The first water pump (2), the second water pump (7), third water pump (9) and electrolysis cells water inlet (22) are reopened, again to electrolysis
Unit (27) injection landfill leachate starts to process.
10. a kind of landfill leachate continous way deep treatment method using processing unit as claimed in claim 2, feature exist
In steps are as follows:
1) landfill leachate is accessed and is adjusted in unit (1), be pumped into percolate anaerobic unit (4) by the first water pump (2), and
Anaerobic biochemical treatment is carried out by anaerobic organism filler (3) from bottom to top；
2) by the second water pump (7), by anaerobic unit (4), treated that landfill leachate is pumped into aerobic unit (6), and under
And upper pass through aerobe filler (5) carry out aerobic treatment；During aerobic treatment outside by aerobic unit (6)
If the first air pump (8), to carrying out inside aerobic unit (6) continuing aeration；
3) by third water pump (9), by aerobic unit (6), treated that landfill leachate is pumped into filter element (11), makes rubbish
Percolate passes through strainer (25) from bottom to top, and the particulate matter in strainer (25) aperture is greater than with the size being isolated in landfill leachate；
When the strainer (25) in unit blocks, the first purge valve (20) on the first clear water water inlet pipe is opened, clear water pair is utilized
Strainer (25) is backwashed；The a large amount of particulate matters generated are backwashed to be discharged from the mud discharging mouth (26) of bottom；
4) it will be discharged into first set electrolysis cells (27) by filtered landfill leachate, the particle electricity in electrolysis cells (27)
Pole (15) and titanium plate electrode (12) and external power supply (13) form three-dimensional electrolysis system, by the second air pump (14) constantly to infiltration
Filtrate is aerated, while applying voltage to two panels titanium plate electrode (12) using external power supply (13), right by granule electrode (15)
The pollutant of non-biochemical degradation carries out electrocatalytic oxidation in landfill leachate, so that Recalcitrant chemicals in percolate are removed, and
Improve the biochemical property of percolate；
5) through electrolysis cells (27), treated that tail water (21) is stored in water unit (16), the part tail water in water unit
(21) outlet, remaining tail water (21) are back to anaerobic unit (4) by the first reflux pump (17), and with adjust in unit (1)
The landfill leachate of input mixes, and re-starts biochemical treatment and electro-catalysis processing, strengthens the treatment effect of landfill leachate；
6) when granule electrode (15) inactivation in first set electrolysis cells (27) or partial inactivation, stop first set electrolysis cells
(27) electrolysis and water inlet, by three-way switch valve (28), by filter element (11), treated that percolate is pumped into second set of electrolysis
Continue electrocatalytic oxidation processing in unit (27)；
7) the second water outlet of electrolysis cells (23) for opening first set electrolysis cells (27) again, by the second reflux pump (18) by
Landfill leachate in a set of electrolysis cells (27), which drains into, adjusts unit (1), until the second reflux pump is closed when percolate is drained
(18) and the second water outlet of electrolysis cells (23)；Then the second purge valve (19) on first set electrolysis cells (27) is opened, is led to
It crosses the second clear water water inlet pipe and injects pure water into first set electrolysis cells (27), then two panels titanium plate electrode (12) is applied again
Voltage, electrolyzing pure water make granule electrode (15) in-situ regeneration, and the electrolysis waste solution generated in regenerative process constantly passes through the second reflux
It pumps (18) injection to adjust in unit (1), is mixed with new refuse percolate and carry out water quality adjustment；After the completion of regeneration, second is closed
The second purge valve (19) of reflux pump (18) and first set electrolysis cells (27), the second water outlet of electrolysis cells (23) wait
Refill landfill leachate；
8) whenever granule electrode (15) inactivation in wherein a set of electrolysis cells (27) or partial inactivation, by Vavle switching, make
Current electrolysis cells (27) stop working, and start to carry out granule electrode (15) regeneration, and another set of regenerated electrolysis are completed
Unit (27) then starts to receive percolate, carries out electrocatalytic oxidation processing.
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