CN206692498U - A kind of saliferous phosphorus-containing wastewater recycling treatment system - Google Patents
A kind of saliferous phosphorus-containing wastewater recycling treatment system Download PDFInfo
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- CN206692498U CN206692498U CN201720120589.8U CN201720120589U CN206692498U CN 206692498 U CN206692498 U CN 206692498U CN 201720120589 U CN201720120589 U CN 201720120589U CN 206692498 U CN206692498 U CN 206692498U
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- nanofiltration device
- phosphorus
- saliferous
- nanofiltration
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- 239000002351 wastewater Substances 0.000 title claims abstract description 48
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 37
- 239000011574 phosphorus Substances 0.000 title claims abstract description 37
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- 238000001728 nano-filtration Methods 0.000 claims abstract description 105
- 239000013078 crystal Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 239000004576 sand Substances 0.000 claims abstract description 24
- 239000012141 concentrate Substances 0.000 claims abstract description 5
- 239000013618 particulate matter Substances 0.000 claims abstract description 4
- 239000012452 mother liquor Substances 0.000 claims description 16
- 230000003197 catalytic effect Effects 0.000 claims description 12
- 238000007710 freezing Methods 0.000 claims description 12
- 230000008014 freezing Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 8
- 230000015556 catabolic process Effects 0.000 claims description 7
- 238000006731 degradation reaction Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- NFIYTPYOYDDLGO-UHFFFAOYSA-N phosphoric acid;sodium Chemical compound [Na].OP(O)(O)=O NFIYTPYOYDDLGO-UHFFFAOYSA-N 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of saliferous phosphorus-containing wastewater recycling treatment system, including：Sand filter, for removing the large particulate matter in saliferous phosphorus-containing wastewater；Multistage nanofiltration device, for retain the waste water from sand filter in organophosphor and Phos, and next stage nanofiltration device outlet concentrate recirculation to adjacent upper level nanofiltration device entrance；Reaction system, for reacting the outlet concentrated water of the first order nanofiltration device in multistage nanofiltration device；And crystal system.The utility model is by setting multistage nanofiltration device that effectively most of organophosphor and Phos can be trapped in nanofiltration concentrate, so as to reduce the energy consumption of reaction system；By reaction system by the organophosphor transformationization Phos in waste water, Phos is crystallized out by crystal system again, so as to improve the resource utilization rate of waste water, small organic molecule is converted into carbon dioxide and water by reaction system, so as to reduce the harmfulness of phosphorus-containing wastewater.
Description
Technical field
The invention belongs to field of waste water treatment, more particularly, to a kind of saliferous phosphorus-containing wastewater recycling treatment system.
Background technology
Most of high saliferous phosphorus-containing wastewater produces from agriculture chemical, and these waste water COD concentration are high, and phosphorus content is high, contains
Salt amount is high, and biodegradability is poor.
Lack effective handling process currently for high saliferous phosphorus-containing wastewater.
The content of the invention
The purpose of this utility model is, for insufficient present on, there is provided at a kind of saliferous phosphorus-containing wastewater recycling
Reason system.
Therefore, above-mentioned purpose of the present utility model is achieved through the following technical solutions：
A kind of saliferous phosphorus-containing wastewater recycling treatment system, the saliferous phosphorus-containing wastewater recycling treatment system include：
- sand filter, the sand filter are used to remove the large particulate matter in saliferous phosphorus-containing wastewater；
- multistage nanofiltration device, the multistage nanofiltration device are used to retain organophosphor and nothing in the waste water from sand filter
Machine phosphorus, and next stage nanofiltration device outlet concentrate recirculation to adjacent upper level nanofiltration device entrance；
- reaction system, the reaction system are used for the outlet to the first order nanofiltration device in multistage nanofiltration device
Concentrated water is reacted；
And
- crystal system, the crystal system are used to carry out crystallization treatment to the reacted waste water of reaction system.
Saliferous phosphorus-containing wastewater recycling treatment system provided by the utility model is mainly used to handle salt content and phosphorus contains
The higher waste water of amount is dense by setting multistage nanofiltration device most of organophosphor and Phos effectively can be trapped in into nanofiltration
In contracting liquid, so as to reduce the energy consumption of reaction system；By reaction system by the organophosphor transformationization Phos in waste water, then lead to
Cross crystal system to crystallize out Phos, so as to improve the resource utilization rate of waste water, reaction system is organic by small molecule
Thing is converted into carbon dioxide and water, so as to reduce the harmfulness of phosphorus-containing wastewater.
While using above-mentioned technical proposal, the utility model can also be used or combined using further below
Technical scheme：
The saliferous phosphorus-containing wastewater recycling treatment system also includes bipolar membrane device, the entrance of the bipolar membrane device with
The production water out of afterbody nanofiltration device in multistage nanofiltration device is connected.
The multistage nanofiltration device includes first order nanofiltration device, second level nanofiltration device, third level nanofiltration device and the
Level Four nanofiltration device, the entrance of first nanofiltration device are connected with the outlet of sand filter, the first order nanofiltration device
Production water out is connected with the entrance of second level nanofiltration device, concentrated water outlet and the reaction system of the first order nanofiltration device
Entrance is connected；The production water out of the second level nanofiltration device is connected with the entrance of third level nanofiltration device, and described second
The concentrated water outlet of level nanofiltration device is connected with the entrance of first order nanofiltration device；The concentrated water outlet of the third level nanofiltration device
It is connected with the entrance of second level nanofiltration device, the production water out of the third level nanofiltration device and entering for fourth stage nanofiltration device
Mouth is connected；The concentrated water outlet of the fourth stage nanofiltration device is connected with the entrance of third level nanofiltration device.
The reaction system includes catalytic wet air oxidation reaction tower, and the catalytic wet air oxidation reaction tower is used to receive multistage
Filter caused concentrated water in device and carry out degradation treatment, the degradation solution outlet of the catalytic wet air oxidation reaction tower and crystal system
Entrance be connected.
The crystal system includes freezing and crystallizing tank and centrifuge, and the freezing and crystallizing tank is used for anti-from reaction system
Waste water after answering carries out decrease temperature crystalline, and the centrifuge is used to reclaim the sodium phosphate discharged in freezing and crystallizing tank in solidliquid mixture
Crystal.
Saliferous phosphorus-containing wastewater recycling treatment system also includes after-treatment system, and the after-treatment system is used for system of crystallization
The discharged mother liquor of system is post-processed.
The after-treatment system divides salt device including heat exchanger, the second sand filtering device and nanofiltration, and the heat exchanger is used for pair
Mother liquor discharged in mother liquor and reaction system discharged in crystal system carries out energy exchange, and second sand filtering device is used
Reach the inflow requirement for dividing salt device into nanofiltration in removing crystal in the mother liquor discharged in crystal system, the nanofiltration point
Salt device is used for the salinity discharged in reuse crystal system in mother liquor to the entrance of crystal system.
Brief description of the drawings
Fig. 1 is the schematic diagram of saliferous phosphorus-containing wastewater recycling treatment system provided by the utility model；
In figure：101- sand filters；201- first order nanofiltration devices；202- second level nanofiltration device；203- third level nanofiltrations
Device；204- fourth stage nanofiltration devices；301- catalytic wet air oxidation reaction towers；401- freezing and crystallizing tanks；402- centrifuges；501-
Bipolar membrane device；601- heat exchangers；The sand filtering devices of 602- second；603- nanofiltrations divide salt device.
Embodiment
The utility model is done and further described in detail with specific embodiment referring to the drawings.
A kind of saliferous phosphorus-containing wastewater recycling treatment system, including：
- sand filter 101, sand filter 101 are used to remove the large particulate matter in saliferous phosphorus-containing wastewater；
- multistage nanofiltration device, multistage nanofiltration device are used to retain organophosphor and nothing in the waste water from sand filter 101
Machine phosphorus, and next stage nanofiltration device outlet concentrate recirculation to adjacent upper level nanofiltration device entrance；
- reaction system, reaction system are used for the outlet to the first order nanofiltration device 201 in multistage nanofiltration device
Concentrated water is reacted；
And
- crystal system, crystal system are used to carry out crystallization treatment to the reacted waste water of reaction system.
Saliferous phosphorus-containing wastewater recycling treatment system also includes bipolar membrane device 501, the entrance of bipolar membrane device 501 with it is more
The production water out of afterbody nanofiltration device in level nanofiltration device is connected.
Multistage nanofiltration device includes first order nanofiltration device 201, second level nanofiltration device 202, third level nanofiltration device 203
With fourth stage nanofiltration device 204, the entrance of first nanofiltration device is connected with the outlet of sand filter 101, first order nanofiltration
The production water out of device 201 is connected with the entrance of second level nanofiltration device 202, the concentrated water outlet of first order nanofiltration device 201
It is connected with the entrance of reaction system；The production water out and the entrance phase of third level nanofiltration device 203 of second level nanofiltration device 202
Connection, the concentrated water outlet of second level nanofiltration device 202 are connected with the entrance of first order nanofiltration device 201；Third level nanofiltration fills
Put 203 concentrated water outlet be connected with the entrance of second level nanofiltration device 202, the production water out of third level nanofiltration device 203 and
The entrance of fourth stage nanofiltration device 204 is connected；Concentrated water outlet and the third level nanofiltration device 203 of fourth stage nanofiltration device 204
Entrance be connected.
Reaction system includes catalytic wet air oxidation reaction tower 301, and catalytic wet air oxidation reaction tower 301 is used for multistage nanofiltration
Caused concentrated water carries out degradation treatment, degradation solution outlet and the crystal system of catalytic wet air oxidation reaction tower 301 in device
Entrance is connected.
Crystal system includes freezing and crystallizing tank 401 and centrifuge 402, and freezing and crystallizing tank 401 is used for from reaction system
Reacted waste water carries out decrease temperature crystalline, and centrifuge 402 is used to reclaim the phosphorus discharged in freezing and crystallizing tank 401 in solidliquid mixture
Sour sodium crystal.
Saliferous phosphorus-containing wastewater recycling treatment system also includes after-treatment system, and after-treatment system is used for crystal system institute
The mother liquor of discharge is post-processed.
After-treatment system divides salt device 603 including heat exchanger 601, the second sand filtering device 602 and nanofiltration, and heat exchanger 601 is used
In carrying out energy exchange to the mother liquor discharged in the mother liquor and reaction system discharged in crystal system, from catalytic wet air oxidation
The degradation solution of reaction tower 301（Mother liquor）Temperature it is still higher, and enter freezing and crystallizing tank temperature need it is relatively low, simultaneously
The crystalline mother solution discharged from freezing and crystallizing tank needs to heat up carries out sand coarse aggregate ratio processing by the second sand filtering device again, therefore, sets
Heat exchanger 601 carries out energy exchange to this two-way waste water, is degraded so as to make full use of discharged in catalytic wet air oxidation reaction tower
The waste heat of liquid, reduce energy loss；Second sand filtering device 602 is used to remove crystal in the mother liquor discharged in crystal system and reach
To the inflow requirement for dividing salt device 603 into nanofiltration, nanofiltration divides salt device 603 to be used for discharged in reuse crystal system in mother liquor
Salinity to crystal system entrance.
Above-mentioned embodiment be used for illustrate the utility model, preferred embodiment only of the present utility model and
, rather than to the utility model limit, in spirit of the present utility model and scope of the claims, to this reality
With new any modification, equivalent substitution and improvements made etc., the scope of protection of the utility model is both fallen within.
Claims (7)
- A kind of 1. saliferous phosphorus-containing wastewater recycling treatment system, it is characterised in that the saliferous phosphorus-containing wastewater recycling treatment system System includes：- sand filter, the sand filter are used to remove the large particulate matter in saliferous phosphorus-containing wastewater；- multistage nanofiltration device, organophosphor that the multistage nanofiltration device is used to retain in the waste water from sand filter and inorganic Phosphorus, and next stage nanofiltration device outlet concentrate recirculation to adjacent upper level nanofiltration device entrance；- reaction system, the reaction system are used for the outlet concentrated water to the first order nanofiltration device in multistage nanofiltration device Reacted；And- crystal system, the crystal system are used to carry out crystallization treatment to the reacted waste water of reaction system.
- 2. saliferous phosphorus-containing wastewater recycling treatment system according to claim 1, it is characterised in that the saliferous is phosphorous useless Recycling of water resource processing system also includes bipolar membrane device, the entrance of the bipolar membrane device and last in multistage nanofiltration device The production water out of level nanofiltration device is connected.
- 3. saliferous phosphorus-containing wastewater recycling treatment system according to claim 1, it is characterised in that the multistage nanofiltration dress Put including first order nanofiltration device, second level nanofiltration device, third level nanofiltration device and fourth stage nanofiltration device, the first order The entrance of nanofiltration device is connected with the outlet of sand filter, and production water out and the second level nanofiltration of the first order nanofiltration device fill The entrance put is connected, and the concentrated water outlet of the first order nanofiltration device is connected with the entrance of reaction system；The second level The production water out of nanofiltration device is connected with the entrance of third level nanofiltration device, the outlet of the concentrated water of the second level nanofiltration device with The entrance of first order nanofiltration device is connected；The concentrated water outlet of the third level nanofiltration device and the entrance of second level nanofiltration device It is connected, the production water out of the third level nanofiltration device is connected with the entrance of fourth stage nanofiltration device；The fourth stage is received The concentrated water outlet of filter device is connected with the entrance of third level nanofiltration device.
- 4. saliferous phosphorus-containing wastewater recycling treatment system according to claim 1, it is characterised in that the reaction system bag Catalytic wet air oxidation reaction tower is included, the catalytic wet air oxidation reaction tower is used to enter caused concentrated water in multistage nanofiltration device Row degradation treatment, the degradation solution outlet of the catalytic wet air oxidation reaction tower are connected with the entrance of crystal system.
- 5. saliferous phosphorus-containing wastewater recycling treatment system according to claim 1, it is characterised in that the crystal system bag Freezing and crystallizing tank and centrifuge are included, the freezing and crystallizing tank is used for carrying out cooling knot from the reacted waste water of reaction system Crystalline substance, the centrifuge are used to reclaim the phosphoric acid sodium crystal discharged in freezing and crystallizing tank in solidliquid mixture.
- 6. saliferous phosphorus-containing wastewater recycling treatment system according to claim 1, it is characterised in that saliferous phosphorus-containing wastewater provides Source processing system also includes after-treatment system, and the mother liquor that the after-treatment system is used to discharge crystal system is located after carrying out Reason.
- 7. saliferous phosphorus-containing wastewater recycling treatment system according to claim 6, it is characterised in that the after-treatment system Divide salt device including heat exchanger, the second sand filtering device and nanofiltration, the heat exchanger is used for the mother liquor discharged in crystal system Energy exchange is carried out with the mother liquor discharged in reaction system, second sand filtering device is used to remove discharged in crystal system Mother liquor in crystal and reach the inflow requirement for dividing salt device into nanofiltration, the nanofiltration divides salt device to be used for reuse crystal system Discharged in salinity in mother liquor to crystal system entrance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120589.8U CN206692498U (en) | 2017-02-09 | 2017-02-09 | A kind of saliferous phosphorus-containing wastewater recycling treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120589.8U CN206692498U (en) | 2017-02-09 | 2017-02-09 | A kind of saliferous phosphorus-containing wastewater recycling treatment system |
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| CN206692498U true CN206692498U (en) | 2017-12-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019165720A1 (en) * | 2018-02-27 | 2019-09-06 | 上海东硕环保科技股份有限公司 | Method for improving recovery rate of "evaporative crystallization + freezing" salt dispersing process using nanofiltration membrane separation |
| CN110386639A (en) * | 2018-04-18 | 2019-10-29 | 国家能源投资集团有限责任公司 | The processing method and system of the salt water of salt containing dianion and univalent anion salt |
| CN111533335A (en) * | 2020-05-09 | 2020-08-14 | 江苏澳特克环境科技有限公司 | Filtering and concentration-discharging process for waste liquid of slow wire moving |
| CN111847683A (en) * | 2019-04-26 | 2020-10-30 | 国家能源投资集团有限责任公司 | Treatment method and treatment system for salt-containing water |
-
2017
- 2017-02-09 CN CN201720120589.8U patent/CN206692498U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019165720A1 (en) * | 2018-02-27 | 2019-09-06 | 上海东硕环保科技股份有限公司 | Method for improving recovery rate of "evaporative crystallization + freezing" salt dispersing process using nanofiltration membrane separation |
| CN110386639A (en) * | 2018-04-18 | 2019-10-29 | 国家能源投资集团有限责任公司 | The processing method and system of the salt water of salt containing dianion and univalent anion salt |
| CN111847683A (en) * | 2019-04-26 | 2020-10-30 | 国家能源投资集团有限责任公司 | Treatment method and treatment system for salt-containing water |
| CN111847683B (en) * | 2019-04-26 | 2022-06-14 | 国家能源投资集团有限责任公司 | Treatment method and treatment system for salt-containing water |
| CN111533335A (en) * | 2020-05-09 | 2020-08-14 | 江苏澳特克环境科技有限公司 | Filtering and concentration-discharging process for waste liquid of slow wire moving |
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