CN114702180A - Landfill leachate treatment system - Google Patents
Landfill leachate treatment system Download PDFInfo
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- CN114702180A CN114702180A CN202111580836.XA CN202111580836A CN114702180A CN 114702180 A CN114702180 A CN 114702180A CN 202111580836 A CN202111580836 A CN 202111580836A CN 114702180 A CN114702180 A CN 114702180A
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- chamber
- heating
- deamination
- landfill leachate
- outlet
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- 239000000149 chemical water pollutant Substances 0.000 title claims description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 115
- 230000009615 deamination Effects 0.000 claims abstract description 47
- 238000006481 deamination reaction Methods 0.000 claims abstract description 47
- 230000003647 oxidation Effects 0.000 claims abstract description 45
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 229910052799 carbon Inorganic materials 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000001699 photocatalysis Effects 0.000 claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 238000007146 photocatalysis Methods 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000011941 photocatalyst Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
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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
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a garbage leachate treatment system, which comprises a filter chamber, a multistage heating chamber, a deamination chamber, an oxidation chamber and a recovery chamber, wherein a preheating mechanism and a constant-temperature heating chamber are arranged in the multistage heating chamber, the preheating mechanism comprises a plurality of heating barrels which are connected in series end to end, the inlets of the heating barrels are connected with the outlet pipeline of the filter chamber, the outlets of the heating barrels are connected with the inlet pipeline of the constant-temperature heating chamber, the outlet pipeline of the constant-temperature heating chamber is connected with an injection piece, deamination liquid for carrying out deamination treatment on steam is arranged in the deamination chamber, the injection piece is inserted into the deamination liquid, the upper outlet of the deamination chamber is connected with the inlet pipeline of the oxidation chamber, a catalytic oxidation piece is arranged in the oxidation chamber, the outlet of the oxidation chamber is connected with the inlet pipeline of a condenser, the outlet of the condenser is connected with the inlet pipeline of the preheating mechanism, the inlet of the recovery chamber is connected with the lower outlet pipeline of the deamination chamber, the outlet of the recovery chamber is connected with the inlet pipeline of the deamination chamber. The invention can efficiently and stably precipitate ammonium salt crystals and realize efficient deamination effect.
Description
Technical Field
The invention belongs to the technical field of landfill leachate treatment, and particularly relates to a landfill leachate treatment system.
Background
In the process of urbanization, because of the rapid increase of population, domestic garbage is accumulated and piled up in a landfill site in large quantity, a large amount of garbage leachate is generated, and because of the complex source of garbage, the garbage leachate is high-concentration organic wastewater with complex components; on the other hand, the manufacturing cost is high, and the small-scale processing process is not suitable.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a landfill leachate treatment system, aiming at solving the problem that the existing treatment modes mainly comprise stripping absorption, evaporation, ion exchange and the like in the deamination process of landfill leachate in the prior art, and in the treatment process of the method, on one hand, the treatment process is complex, the cost is high, and the difficulty in the reprocessing of absorption liquid is high; on the other hand, the manufacturing cost is high, and the small-scale treatment process is not suitable.
The invention is realized by adopting the following technical scheme:
a landfill leachate treatment system comprises a filter chamber, a multi-stage heating chamber, a deamination chamber, an oxidation chamber and a recovery chamber; the filtering chamber is used for filtering impurities in the landfill leachate;
a preheating mechanism and a constant-temperature heating cavity are arranged in the multistage heating chamber, the preheating mechanism comprises a plurality of heating barrels which are connected in series end to end, inlets of the heating barrels are connected with an outlet pipeline of the filtering chamber, the heating barrels are used for preheating the garbage percolate, outlets of the heating barrels are connected with an inlet pipeline of the constant-temperature heating cavity, the constant-temperature heating cavity is used for heating the garbage percolate to a steam state, and an outlet pipeline of the constant-temperature heating cavity is connected with an injection piece;
the device comprises a deammoniation chamber, an injection piece, an oxidation chamber, a condenser, a preheating mechanism and a spraying piece, wherein the deammoniation chamber is internally provided with deammoniation liquid used for carrying out deammoniation treatment on steam, the injection piece is inserted into the deammoniation liquid, the upper outlet of the deammoniation chamber is connected with an inlet pipeline of the oxidation chamber, a catalytic oxidation piece is arranged in the oxidation chamber and used for carrying out catalytic oxidation on the steam, the outlet of the oxidation chamber is connected with an inlet pipeline of the condenser, and the outlet of the condenser is connected with an inlet pipeline of the preheating mechanism;
the inlet of the recovery chamber is connected with a lower outlet pipeline of the deamination chamber, the outlet of the recovery chamber is connected with an inlet pipeline of the deamination chamber, and the recovery chamber is used for separating crystals and deamination liquid after neutralization reaction of garbage percolate and deamination liquid.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, the filter chamber upper end is provided with the feed inlet, a plurality of filter screens have set gradually from top to bottom in the filter chamber, the mesh diameter of filter screen reduces from top to bottom in proper order, the spout has been seted up at the both ends of filter screen, be provided with the spring in the spout, the one end that the filter screen was kept away from to the spring is connected with the fixed ball, the filter chamber lateral wall corresponds fixed ball department and is provided with the ball groove.
Further, each heating cylinder parallel fixation from top to bottom sets up in multistage heating chamber for landfill leachate is in each heating cylinder is the S type and flows from top to bottom, be provided with the pivot in the heating cylinder, be provided with the spiral guide vane in the pivot, the spiral guide vane revolve to unanimous with landfill leachate' S flow direction, the both ends of pivot are rotated and are connected on the end cover, the end cover passes through connecting rod and heating cylinder lateral wall fixed connection, the parcel has the heating jacket on the heating cylinder lateral wall, fill hot water in the heating jacket.
Further, the entry in constant temperature heating chamber and the exit tube coupling of cartridge heater, the fixed setting in multistage heating chamber bottom in constant temperature heating chamber, be provided with heating element in the constant temperature heating chamber, heating element one end is S type structure, heating element is connected with external power supply, the export in constant temperature heating chamber and injection pipe coupling.
Further, the injection piece is a hollow shell, the shell is in a round table shape, a plurality of through holes are formed in the top surface and the side surface of the shell, the bottom surface of the shell is connected with a pipeline, and steam is introduced into the ammonia removal liquid through the through holes.
Further, a liquid removal piece is arranged above the deamination liquid, the liquid removal piece is arranged at an upper outlet of the deamination chamber, and the liquid removal piece is of a stepped mesh structure.
Further, catalytic oxidation spare includes active carbon filter layer, two photocatalysis boards and LED lamp, the vertical setting of active carbon filter layer is in the oxidizing chamber, the inside packing of active carbon filter layer has the active carbon granule, active carbon filter layer upper end is provided with the entry, active carbon layer lower extreme is provided with the export, the exit is provided with the solenoid valve, two photocatalysis board and oxidizing chamber lateral wall swing joint, two the photocatalysis board is parallel with the active carbon filter layer, and is located active carbon filter layer both sides, the LED lamp is fixed to be set up on the lateral wall about the oxidizing chamber, LED lamp outside cover is equipped with the clear glass cover.
Further, the surface of the photocatalytic plate is coated with photocatalyst which is made of TiO2、ZrO2ZnO, CdS and Fe2O3One or a mixture of more of them.
The invention has the beneficial effects that:
compared with the prior art, the garbage leachate treatment system disclosed by the invention has the advantages that a complete circulation treatment process is formed by utilizing the filter chambers, the multi-stage heating chambers, the deamination chamber, the oxidation chamber and the recovery chamber, garbage leachate is gasified and ammonia is separated out by utilizing the connection and cooperation of the treatment chambers, then the garbage leachate is re-liquefied and is gasified and ammonia is separated out again, ammonium salt crystals can be efficiently and stably separated out, and the efficient deamination effect is realized.
Multistage heating chamber utilizes the heating cylinder to carry out the segmentation heating to landfill leachate for landfill leachate has certain temperature when arriving constant temperature heating chamber, has shortened constant temperature heating chamber to landfill leachate's heating time, has improved holistic work efficiency.
The mutual cooperation of deamination room and recovery room can be separated out the ammonium salt crystal that separates out on the one hand, and on the other hand can be with the deamination liquid that flows out along with the ammonium salt crystal drainage to deamination indoor again.
The pipeline connection layout of the oxidation chamber, the condenser and the multi-stage heating chamber can condense the garbage percolate after catalytic oxidation and then participate in the next circulation treatment, thereby ensuring the filtration efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a landfill leachate treatment system of the present invention.
Fig. 2 is a partial structural view of a portion a of fig. 1 according to the present invention.
Fig. 3 is a schematic view of the structure of the spray member of the present invention.
Fig. 4 is a schematic structural view of the preheating mechanism of fig. 1 according to the present invention.
The reference signs are:
a filter chamber 10, a feed inlet 11, a first valve 12, a first water pump 13, a first one-way check valve 14, a spray head 15, a multi-stage heating chamber 20, a preheating mechanism 21, a heating cylinder 211, a rotating shaft 212, a spiral guide vane 213, an end cover 214, a connecting rod 215, a heating jacket 216, a water filling port 2161, a constant temperature heating chamber 22, a heating element 221, a second valve 23, a first air pump 24, a deamination chamber 30, a liquid filling port 31, a deamination liquid 32, a liquid removing element 33, a second air pump 34, an oxidation chamber 40, an activated carbon filter layer 41, an inlet 411, an outlet 412, an electromagnetic valve 413, a photocatalytic plate 42, an LED lamp 43, a transparent glass cover 44, a clamping seat 45, a third air pump 46, a third valve 47, a recovery chamber 50, a U-shaped filter screen 51, a supporting plate 52, a fourth valve 53, a second water pump 54, a second one-way check valve 55, a filter screen 60, a chute 61, a spring 62, a fixing ball 63, a spraying element 70, a through hole 71, a preheating devices 71, A condenser 80.
Detailed Description
In order to clarify the technical solution and the working principle of the present invention, the present invention is further described in detail with reference to the following embodiments in conjunction with the accompanying drawings, it should be noted that, in the premise of not conflicting, any combination between the embodiments described below or between the technical features may form a new embodiment.
Referring to fig. 1-4, a landfill leachate treatment system according to an embodiment of the present invention will now be described. The landfill leachate treatment system provided by the embodiment of the invention is used for small-scale landfill leachate treatment process, can be used independently, and can also be matched with other treatment processes to treat landfill leachate in a combined manner.
The garbage leachate treatment system provided by the embodiment of the invention comprises a filter chamber 10, a multi-stage heating chamber 20, a deamination chamber 30, an oxidation chamber 40 and a recovery chamber 50.
The upper end of the filtering chamber 10 is provided with a feeding hole 11, a plurality of filtering screens 60 are sequentially arranged in the filtering chamber 10 from top to bottom, the filtering screens 60 are parallel to each other, the mesh diameters of the filtering screens 60 are sequentially reduced from top to bottom, sliding grooves 61 are formed in two ends of each filtering screen 60, springs 62 are arranged in the sliding grooves 61, the other ends of the springs 62 are connected with fixing balls 63, the fixing balls 63 can be contracted into the sliding grooves 61 under the driving of the springs 62, ball grooves are formed in positions, corresponding to the fixing balls 63, of the side wall of the filtering chamber 10, outlet pipelines at the lower end of the filtering chamber 10 are connected with nozzles 15, the nozzles 15 are inserted into the multistage heating chamber 20, a first valve 12 and a first water pump 13 are arranged on a pipeline between an outlet at the lower end of the filtering chamber 10 and the multistage heating chamber 20, and a first one-way check valve 14 is arranged on one side, close to the multistage heating chamber 20, of the pipeline. It can be understood that: the filter screens 60 are connected with the side walls of the filter chambers 10 in a sliding mode, the filter screens 60 can be taken out and cleaned from the filter chambers 10 regularly, and the garbage percolate is extracted from the filter chambers 10 and sprayed into the multistage heating chamber 20 by the aid of the first water pump 13.
A preheating mechanism 21 and a constant temperature heating chamber 22 are arranged in the multistage heating chamber 20, the preheating mechanism 21 comprises a plurality of heating barrels 211 which are connected end to end in series, the inlet of the first heating barrel 211 is connected with the spray head 15, each heating barrel 211 is fixedly arranged in the multistage heating chamber 20 from top to bottom in parallel, so that the landfill leachate flows in each heating barrel 211 from top to bottom in an S shape, the heating barrel 211 is used for preheating the landfill leachate, a rotating shaft 212 is arranged in the heating barrel 211, a spiral guide blade 213 is arranged on the rotating shaft 212, the rotating direction of the spiral guide blade 213 is consistent with the flowing direction of the landfill leachate, two ends of the rotating shaft 212 are rotatably connected on an end cover 214, a bearing is arranged between the rotating shaft 212 and the end cover 214, the end cover 214 is fixedly connected with the side wall of the heating barrel 211 through a connecting rod 215, a heating sleeve 216 is wrapped on the outer side wall of the heating barrel 211, hot water is filled in the heating sleeve 216, a water filling port 2161 is arranged on the heating sleeve 216, the outlet of the heating cartridge 211 is connected with the inlet pipeline of the constant temperature heating chamber 22. It can be understood that: landfill leachate gets into heating cylinder 211 under the drive of first water pump 13 in, produce the impact to spiral guide vane 213, spiral guide vane 213 drives pivot 212 and rotates to produce centrifugal force, make landfill leachate attach on the inside wall of heating cylinder 211, then heat under the effect of heating jacket 216, realize the purpose of preheating, the water filling port 2161 that heating jacket 216 set up is convenient for annotate hot water simultaneously, and discharge cold water.
The constant-temperature heating cavity 22 is used for heating garbage percolate to a steam state, an inlet of the constant-temperature heating cavity 22 is connected with an outlet pipeline of the heating cylinder 211, the constant-temperature heating cavity 22 is fixedly arranged at the bottom end of the multistage heating chamber 20, a heating element 221 is arranged in the constant-temperature heating cavity 22, one end of the heating element 221 is of an S-shaped structure, the heating element 221 is connected with an external power supply, an outlet of the constant-temperature heating cavity 22 is connected with an injection element 70 through a pipeline, a second valve 23 and a first air suction pump 24 are arranged on a pipeline between the outlet of the constant-temperature heating cavity 22 and an inlet of the injection element 70, the second valve 23 is used for controlling the on-off of the pipeline, the first air suction pump 24 is used for conveying the steam-shaped garbage percolate into the injection element 70, the injection element 70 is inserted into the deamination liquid 32 in the deamination chamber 30, the injection element 70 is a hollow shell, the shell is of a circular truncated cone shape, and a plurality of through holes 71 are arranged on the top surface and the side surface of the shell, the bottom surface of the shell is connected with a pipeline. It can be understood that: the constant temperature heating cavity 22 is used for vaporizing the landfill leachate, then the landfill leachate is conveyed to the injection piece 70 through a pipeline, and the treatment efficiency of the steam-shaped landfill leachate in the deamination chamber is improved by utilizing the porous structure of the injection piece 70.
The upper end of the deamination chamber 30 is provided with a liquid injection port 31 for injecting a deamination liquid 32, the deamination liquid 32 adopts an acid absorption liquid with a pH value less than 4, the acid absorption liquid consists of a mixed solution of phosphoric acid and nitric acid, a liquid removal part 33 is arranged at an upper outlet of the deamination chamber 30, the liquid removal part 33 is of a stepped mesh structure and used for removing fine deamination liquid drops carried in steam, an upper outlet of the deamination chamber 30 is connected with an inlet pipeline of the oxidation chamber 40, and a second air suction pump 34 is arranged on the pipeline and used for conveying steam-shaped garbage percolate into the oxidation chamber 40. This deamination room 30 adopts a plurality of curb plates, roof and bottom plate to enclose and becomes, and wherein the bottom plate can be dismantled with the curb plate and be connected, after producing more serious scale deposit phenomenon on the bottom plate, then only need close first aspiration pump 24, second one-way check valve 55, fourth valve 53, can carry out the dismantlement clearance of bottom plate.
A catalytic oxidation part is arranged in the oxidation chamber 40 and comprises an active carbon filter layer 41, two photocatalytic plates 42 and an LED lamp 43, the active carbon filter layer 41 is vertically arranged in the oxidation chamber 40, active carbon particles are filled in the active carbon filter layer 41, the upper end of the active carbon filter layer 41 is provided with an inlet 411, and the active carbon filter layer 41 is arranged below the inlet 411An outlet 412 is arranged at the end, an electromagnetic valve 413 is arranged at the outlet 412, the two photocatalytic plates 42 are parallel to the activated carbon filter layer 41 and are positioned at two sides of the activated carbon filter layer 41, the surfaces of the photocatalytic plates 42 are coated with photocatalysts, and the photocatalysts are TiO2、ZrO2、ZnO、CdS、Fe2O3In one or a plurality of mixtures, two photocatalysis plates 42 are movably connected with the side wall of the oxidation chamber 40, clamping seats 45 are arranged on the inner side walls of the upper end and the lower end of the oxidation chamber 40, the upper end and the lower end of each photocatalysis plate 42 are respectively clamped in the clamping seats 45, the LED lamp 43 is fixedly arranged on the upper side wall and the lower side wall of the oxidation chamber 40, and a transparent glass cover 44 covers the outer side of the LED lamp 43. The outlet of the oxidation chamber 40 is connected with the inlet pipeline of the condenser 80, the outlet of the condenser 80 is connected with the inlet pipeline of the multistage heating chamber 20, and the pipeline between the oxidation chamber 40 and the condenser 80 is provided with a third air pump 46 for conveying the steam-shaped landfill leachate after oxidation catalysis to the condenser 80 for condensation and liquefaction, and then participating in the next cycle of ammonia removal treatment again until reaching the emission standard, and discharging by opening and closing a third valve 47.
A U-shaped filter screen 51 is arranged in the recovery chamber 50, a pair of supporting plates 52 is arranged below the U-shaped filter screen 51, the supporting plates 52 are fixedly connected to the left inner side wall and the right inner side wall in the recovery chamber 50 respectively, the lower end of the U-shaped filter screen 51 abuts against and is supported on the supporting plates 52, the inlet of the recovery chamber 50 is connected with the lower outlet pipeline of the oxidation chamber 40, a fourth valve 53 is arranged on the pipeline, ammonium salt crystals are filtered out through the U-shaped filter screen 51, the outlet of the recovery chamber 50 is connected with the pipeline at the bottom of the oxidation chamber 40, and a second water pump 54 and a second one-way check valve 55 are arranged on the pipeline and used for conveying the ammonia-removing liquid 32 into the oxidation chamber 40 again for use.
The working principle of the invention is as follows:
firstly, the landfill leachate is injected from a feeding hole 11 at the upper end of a filtering chamber 10, then primary filtering is carried out, the filtered landfill leachate is conveyed into a multistage heating chamber 20 through a first water pump 13 and is preheated by a plurality of heating cylinders 211 in sequence, so that the landfill leachate reaches a set temperature value when reaching a constant temperature heating chamber 22, the landfill leachate is then vaporized by the heating element 221, the second valve 23 is then opened, the first suction pump 24 is started to deliver the vaporized landfill leachate to the injection element 70, then the vaporized landfill leachate reacts with the deamination liquid 32 to separate out ammonium salt crystals, a fourth valve 53 on a lower outlet pipeline of the oxidation chamber 40 is opened to discharge the ammonium salt crystals to the recovery chamber 50, a U-shaped filter screen 51 is utilized to separate the ammonium salt crystals, simultaneously, starting a second water pump 54, and conveying the deammoniation liquid 32 flowing out synchronously along with the ammonium salt crystals into the oxidation chamber 40 again; and (3) synchronously starting the second air pump 34, conveying the deaminated landfill leachate into the oxidation chamber 40 for catalytic oxidation to remove organic matters, then starting the third air pump 46, conveying the catalytic-oxidized landfill leachate into the condenser 80 for condensation and liquefaction, then participating in next circulation of deamination treatment again until reaching the discharge standard, and opening the third valve 47 for discharge.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (8)
1. The utility model provides a landfill leachate processing system which characterized in that: comprises a filter chamber, a multi-stage heating chamber, a deamination chamber, an oxidation chamber and a recovery chamber;
the filtering chamber is used for filtering impurities in the landfill leachate;
a preheating mechanism and a constant-temperature heating cavity are arranged in the multistage heating chamber, the preheating mechanism comprises a plurality of heating barrels which are connected in series end to end, inlets of the heating barrels are connected with an outlet pipeline of the filtering chamber, the heating barrels are used for preheating the garbage percolate, outlets of the heating barrels are connected with an inlet pipeline of the constant-temperature heating cavity, the constant-temperature heating cavity is used for heating the garbage percolate to a steam state, and an outlet pipeline of the constant-temperature heating cavity is connected with an injection piece;
the device comprises a deammoniation chamber, an injection piece, an oxidation chamber, a condenser, a preheating mechanism and a spraying piece, wherein the deammoniation chamber is internally provided with deammoniation liquid used for carrying out deammoniation treatment on steam, the injection piece is inserted into the deammoniation liquid, the upper outlet of the deammoniation chamber is connected with an inlet pipeline of the oxidation chamber, a catalytic oxidation piece is arranged in the oxidation chamber and used for carrying out catalytic oxidation on the steam, the outlet of the oxidation chamber is connected with an inlet pipeline of the condenser, and the outlet of the condenser is connected with an inlet pipeline of the preheating mechanism;
the inlet of the recovery chamber is connected with a lower outlet pipeline of the deamination chamber, the outlet of the recovery chamber is connected with an inlet pipeline of the deamination chamber, and the recovery chamber is used for separating crystals and deamination liquid after the reaction of the landfill leachate and the deamination liquid.
2. The landfill leachate treatment system of claim 1, wherein: the filter chamber upper end is provided with the feed inlet, a plurality of filter screens have set gradually from top to bottom in the filter chamber, the mesh diameter of filter screen reduces from top to bottom in proper order, the spout has been seted up at the both ends of filter screen, be provided with the spring in the spout, the one end that the filter screen was kept away from to the spring is connected with the fixed ball, the filter chamber lateral wall corresponds fixed ball department and is provided with the ball groove.
3. The landfill leachate treatment system of claim 1, wherein: it is first the import department of cartridge heater is connected with the shower nozzle, the export of shower nozzle tube coupling filter chamber, each the cartridge heater from top to bottom parallel fixed set up in multistage heating is indoor for landfill leachate is at each be the S type in the cartridge heater from top to bottom flows, be provided with the pivot in the cartridge heater, be provided with spiral guide vane in the pivot, spiral guide vane 'S the rotation is unanimous with landfill leachate' S flow direction, the both ends of pivot are rotated and are connected on the end cover, the end cover passes through connecting rod and cartridge heater lateral wall fixed connection, the parcel has the heating jacket on the cartridge heater lateral wall, it has hot water to fill in the heating jacket.
4. The landfill leachate treatment system of claim 3, wherein: the entry in constant temperature heating chamber and the exit tube coupling of cartridge heater, the constant temperature heating chamber is fixed to be set up in multistage heating chamber bottom, the constant temperature is provided with the heating member in the heating chamber, heating member one end is S type structure, the heating member is connected with external power source, the export in constant temperature heating chamber and a pipe connection that sprays.
5. The landfill leachate treatment system of claim 4, wherein: the spraying piece is a hollow shell, the shell is in a round table shape, a plurality of through holes are formed in the top surface and the side surface of the shell, the bottom surface of the shell is connected with a pipeline, and steam is introduced into the ammonia removal liquid through the through holes.
6. The landfill leachate treatment system of claim 1, wherein: the deamination liquid top is provided with the deliquoring piece, the deliquoring piece sets up the last exit on the deamination room, the deliquoring piece is echelonment mesh structure.
7. The landfill leachate treatment system of claim 6, wherein: catalytic oxidation spare includes active carbon filter layer, two photocatalysis boards and LED lamp, the vertical setting of active carbon filter layer is in the oxidizing chamber, the inside packing of active carbon filter layer has the active carbon granule, active carbon filter layer upper end is provided with the entry, active carbon layer lower extreme is provided with the export, the exit is provided with the solenoid valve, two photocatalysis board and oxidizing chamber lateral wall swing joint, two the photocatalysis board is parallel with the active carbon filter layer, and is located active carbon filter layer both sides, the LED lamp is fixed to be set up on the lateral wall about the oxidizing chamber, LED lamp outside cover is equipped with the clear glass cover.
8. The landfill leachate treatment system of claim 7, wherein: the surface of the photocatalytic plate is coated with a photocatalyst which is made of TiO2、ZrO2ZnO, CdS and Fe2O3One or a mixture of more of them.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB255050A (en) * | 1925-07-09 | 1926-10-28 | Bbc Brown Boveri & Cie | Improvements in evaporators for steam power plants |
| CN101579577A (en) * | 2009-06-23 | 2009-11-18 | 杭州锦江集团有限公司 | Vaporization system for preheating stock solution |
| CN202284169U (en) * | 2011-09-09 | 2012-06-27 | 陈伟雄 | Landfill leachate evaporation concentration apparatus capable of recovering ammonia |
| CN105927989A (en) * | 2016-06-30 | 2016-09-07 | 安徽未名鼎和环保有限公司 | Pretreatment type sludge incineration treatment system |
| CN106621416A (en) * | 2016-10-31 | 2017-05-10 | 重庆市南川区庆岩福利碱厂 | Concentration evaporator for sodium sulfide |
| CN206580653U (en) * | 2017-02-23 | 2017-10-24 | 程新明 | A kind of coal chemical industrial waste water processing pond of multistage sediment |
| CN206985762U (en) * | 2017-05-31 | 2018-02-09 | 江苏隆昌化工有限公司 | A kind of preheating system of processing of aqueous ammonium chloride solution |
| CN209616107U (en) * | 2018-12-12 | 2019-11-12 | 江西丰迪新材料有限公司 | A kind of efficient plastic melt equipment |
| CN110734184A (en) * | 2019-11-12 | 2020-01-31 | 佛山科学技术学院 | Metal filtering and extracting device for industrial wastewater |
| CN210131428U (en) * | 2019-04-22 | 2020-03-10 | 福建清健环保科技有限公司 | Make things convenient for sewage pretreatment device that filter screen was changed |
| CN113625796A (en) * | 2021-08-06 | 2021-11-09 | 唐山市宝凯科技有限公司 | Spiral conveying dual-effect evaporation coal material humidity adjusting device and online humidity control method |
-
2021
- 2021-12-22 CN CN202111580836.XA patent/CN114702180A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB255050A (en) * | 1925-07-09 | 1926-10-28 | Bbc Brown Boveri & Cie | Improvements in evaporators for steam power plants |
| CN101579577A (en) * | 2009-06-23 | 2009-11-18 | 杭州锦江集团有限公司 | Vaporization system for preheating stock solution |
| CN202284169U (en) * | 2011-09-09 | 2012-06-27 | 陈伟雄 | Landfill leachate evaporation concentration apparatus capable of recovering ammonia |
| CN105927989A (en) * | 2016-06-30 | 2016-09-07 | 安徽未名鼎和环保有限公司 | Pretreatment type sludge incineration treatment system |
| CN106621416A (en) * | 2016-10-31 | 2017-05-10 | 重庆市南川区庆岩福利碱厂 | Concentration evaporator for sodium sulfide |
| CN206580653U (en) * | 2017-02-23 | 2017-10-24 | 程新明 | A kind of coal chemical industrial waste water processing pond of multistage sediment |
| CN206985762U (en) * | 2017-05-31 | 2018-02-09 | 江苏隆昌化工有限公司 | A kind of preheating system of processing of aqueous ammonium chloride solution |
| CN209616107U (en) * | 2018-12-12 | 2019-11-12 | 江西丰迪新材料有限公司 | A kind of efficient plastic melt equipment |
| CN210131428U (en) * | 2019-04-22 | 2020-03-10 | 福建清健环保科技有限公司 | Make things convenient for sewage pretreatment device that filter screen was changed |
| CN110734184A (en) * | 2019-11-12 | 2020-01-31 | 佛山科学技术学院 | Metal filtering and extracting device for industrial wastewater |
| CN113625796A (en) * | 2021-08-06 | 2021-11-09 | 唐山市宝凯科技有限公司 | Spiral conveying dual-effect evaporation coal material humidity adjusting device and online humidity control method |
Non-Patent Citations (2)
| Title |
|---|
| 吴忆宁等: "《基础环境化学工程原理》", 哈尔滨工业大学出版社 * |
| 王沛等: "《制药原料与设备（第2版）》", 31 January 2019, 上海科学技术出版社 * |
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Application publication date: 20220705 |