CN204111459U - A kind of electric power plant circulating water sewer recycling processing system - Google Patents
A kind of electric power plant circulating water sewer recycling processing system Download PDFInfo
- Publication number
- CN204111459U CN204111459U CN201420260934.4U CN201420260934U CN204111459U CN 204111459 U CN204111459 U CN 204111459U CN 201420260934 U CN201420260934 U CN 201420260934U CN 204111459 U CN204111459 U CN 204111459U
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- CN
- China
- Prior art keywords
- stage
- cation exchanger
- reverse osmosis
- sodium form
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000004064 recycling Methods 0.000 title claims abstract description 8
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 49
- -1 sodium form cation Chemical class 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 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 claims abstract description 12
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 7
- 150000001768 cations Chemical class 0.000 claims abstract description 6
- 230000001172 regenerating effect Effects 0.000 claims abstract description 6
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 230000008929 regeneration Effects 0.000 claims description 16
- 238000011069 regeneration method Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 4
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 4
- 239000004571 lime Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 239000002351 wastewater Substances 0.000 description 8
- 229910001415 sodium ion Inorganic materials 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000001728 nano-filtration Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of electric power plant circulating water sewer recycling processing system, it comprises more medium filter, one-level sodium form cation exchanger and second stage sodium form cation exchanger, second stage sodium form cation exchanger by pipeline respectively with cooling tower, first-stage reverse osmosis device, ultra-filtration equipment is communicated with, first-stage reverse osmosis device is respectively by pipeline and cooling tower, second level reverse osmosis apparatus is communicated with, the product water of second level reverse osmosis apparatus enters Boiler water Feeding System system, its dense water is connected to the rising pipe of second stage sodium form cation exchanger by the road, the dense water of first-stage reverse osmosis enters product water tank through sodium filter device, produce water tank and be connected to second stage sodium form regenerating cation exchanger liquid-inlet pipe by the road.Basis is novel is provided with two-stage sodium form cation exchanger, utilizes two-stage sodium form cation exchanger to replace lime treatment system, avoids the generation of the difficult materials such as mud.Basis is novel can effectively reduce recirculated water hardness, improves recirculated water concentration rate.
Description
Technical field
The utility model relates to a kind of electric power plant circulating water sewer recycling processing system.
Background technology
The sewer reuse of recirculated water is the effective way solving Water of Power Plant shortage of resources, realize waste water reduction and sewage recycling.Recirculated water and sewer water-quality constituents complexity, the saltiness in water, COD, SiO
2, hardness, the indices such as basicity all have increase at double than natural water, when being back to reverse-osmosis treated, very easily cause reverse osmosis fouling dirt stifled, cause reverse osmosis output drop, the cycle of operation shortens, frequent matting, power station water supply is not enough, can make the reverse-osmosis membrane element lost of life time serious, have impact on the stable of power plant's reverse osmosis operation greatly.
At present, often occur the situation that reverse osmosis dirt is stifled in adopting the power plant of Reuse of Wastewater Form Circulating Cooling Water to run, reverse osmosis occurs that water production rate declines, and pressure reduction rises, and degradation situation under ratio of desalinization, operation stability is affected.Simultaneously at present the conventional reverse osmosis rate of recovery is 75%, namely have an appointment 1/4th water inlet directly discharge as dense water and do not recycle, this is concerning system being a larger waste.Mostly adopt lime coagulation process during current Reuse of Wastewater Form Circulating Cooling Water, concerning some power plant, the mud that lime coagulation produces is difficult to process, causes series of problems to power plant's environmental protection simultaneously.
Utility model content
Technical problem to be solved in the utility model provides that a kind of reverse osmosis rate of recovery is high, reverse osmosis operation stability is strong, reverse osmosis concentrated water can be realized fully recycle, and not produce the electric power plant circulating water sewer recycling processing system that mud etc. is difficult to treated substance.
The utility model solves the problems of the technologies described above the technical scheme taked: a kind of electric power plant circulating water sewer recycling processing system, its gordian technique is: it comprises the more medium filter that order is arranged, one-level sodium form cation exchanger and second stage sodium form cation exchanger, described second stage sodium form cation exchanger by pipeline respectively with cooling tower, first-stage reverse osmosis device, ultra-filtration equipment is communicated with, described first-stage reverse osmosis device is respectively by pipeline and cooling tower, second level reverse osmosis apparatus is communicated with, pipeline between first-stage reverse osmosis device and second level reverse osmosis apparatus is provided with NaOH dosing pump, the product water of described second level reverse osmosis apparatus enters Boiler water Feeding System system, its dense water is connected to the rising pipe of second stage sodium form cation exchanger by the road, the dense water of described first-stage reverse osmosis enters product water tank through sodium filter device, described product water tank is communicated with NaCl dosing pump, described product water tank is connected to second stage sodium form regenerating cation exchanger liquid-inlet pipe by the road, deliver to one-level sodium form cation exchanger from the regeneration discharge opeing out of second stage sodium form cation exchanger through regeneration pipeline to regenerate,
Pipeline between described more medium filter and one-level sodium form cation exchanger is provided with S-WAT dosing pump.
The beneficial effect that the utility model adopts technique scheme to obtain is as follows:
(1) the utility model is provided with two-stage sodium form cation exchanger, utilizes two-stage sodium form cation exchanger to replace lime treatment system, avoids the generation of the difficult materials such as mud; The utility model takes full advantage of the large feature of two-stage sodium form cation exchanger exchange capacity, ensure that second stage cation exchanger water outlet and first-stage reverse osmosis water inlet are almost without hardness, can effectively improve the first-stage reverse osmosis rate of recovery;
(2) further improve, the utility model by first-stage reverse osmosis without the dense water of hardness through nanofiltration process, effectively the salinities such as the sodium-chlor in reverse osmosis concentrated water, Repone K are purified, be back to Na-ion exchanger regeneration, decrease the outer discharge capacity of waste water, improve the utilization ratio of Wastewater Form Circulating Cooling Water.And make use of nanofiltration and produce in water and only reclaim monovalent ion, remove divalent ion and organism feature, ensure that the objectionable impurities easily not causing the fouling of sodium form cation exchanger resin, pollution in regenerated liquid containing sulfate radical, organism etc., also ensure that the regeneration waste liquid of sodium form cation exchanger is not containing organism and vitriol, be only high calcium waste water, be applicable to desulphurization system and use;
(3) the utility model using secondary sodium form cation exchanger without hardness water outlet as circulating cooling make-up water, can effectively reduce recirculated water hardness, improve recirculated water concentration rate, reduce Circulating water effluent amount, effective saving water resource.
Accompanying drawing explanation
fig. 1 is schematic diagram of the present utility model.
Embodiment
?see accompanying drawing 1, the present embodiment comprises the more medium filter that order is arranged, one-level sodium form cation exchanger and second stage sodium form cation exchanger, described second stage sodium form cation exchanger by pipeline respectively with cooling tower, first-stage reverse osmosis device, ultra-filtration equipment is communicated with, described first-stage reverse osmosis device is respectively by pipeline and cooling tower, second level reverse osmosis apparatus is communicated with, pipeline between first-stage reverse osmosis device and second level reverse osmosis apparatus is provided with NaOH dosing pump, the product water of described second level reverse osmosis apparatus enters Boiler water Feeding System system, its dense water is connected to the rising pipe of second stage sodium form cation exchanger by the road, the dense water of described first-stage reverse osmosis enters product water tank through sodium filter device, described product water tank is communicated with NaCl dosing pump, described product water tank is connected to second stage sodium form regenerating cation exchanger liquid-inlet pipe by the road, deliver to one-level sodium form cation exchanger from the regeneration discharge opeing out of second stage sodium form cation exchanger through regeneration pipeline to regenerate, pipeline between more medium filter and one-level sodium form cation exchanger is provided with S-WAT dosing pump.
Adopt the utility model as follows to electric power plant circulating water sewer process for reclaiming step:
(1) Wastewater Form Circulating Cooling Water is sent in more medium filter filter;
(2) the ORP value of the filtration water outlet obtained in determination step (1), if ORP value is less than 200mV, then will filter water outlet successively by one-level Na-ion exchanger and second stage sodium form cation exchanger, if ORP value is greater than 200mV, then add bisulfite sodium reduction, make its ORP value lower than 200mV, then it is made successively by one-level Na-ion exchanger and second stage sodium form cation exchanger, make one-level Na-ion exchanger go out the water hardness and be less than 200 μm of ol/L, second stage sodium form cation exchanger goes out the water hardness and is less than 10 μm of ol/L;
(3) second stage sodium form cation exchanger water outlet part obtained in step (2) is filled in cooling tower as circulating cooling make-up water; Another part measures its SDI value, if SDI value is less than 5.0, then first-stage reverse osmosis is sent in water outlet and processes, if SDI value is greater than 5.0, then by this water outlet after uf processing, send into first-stage reverse osmosis process;
(4) the first-stage reverse osmosis water outlet obtained in step (3) part is filled in cooling tower as circulating cooling make-up water; Another part hydro-oxidation sodium adjusted to ph, to 8.0-9.0, is sent into two-pass reverse osmosis and is processed;
(5) advanced desalination system is sent in the two-pass reverse osmosis water outlet obtained in step (4) to process, the water outlet after process is as boiler of power plant supplementary feed;
Described sewer is the draining of the recirculated water that power plant uses, and the moisturizing of this recirculated water is surface water, underground water or municipal middle water.
Above-mentioned steps 3) described in the product water of dense water after nanofiltration process that produces of first-stage reverse osmosis can be back to the regeneration of two-stage sodium form cation exchanger, the steps include: that the dense water produced by first-stage reverse osmosis is sent in sodium filter to process, controlling the nanofiltration rate of recovery is 70%-90%, nanofiltration is produced water and second stage sodium form cation exchanger produce water by volume 1:1 to 1:5 mix, as sodium form regenerating cation exchanger water, in described regeneration water, add sodium-chlor makes sodium salt concentration in described regeneration water be regeneration for two-stage sodium form cation exchanger after 5%-8%, series-connected regenerative is adopted during regeneration, namely regenerated liquid is introduced into secondary Na-ion exchanger and carries out counter-current regeneration, regeneration discharge opeing enters one-level Na-ion exchanger and carries out counter-current regeneration.
In ultrafiltration water inlet place, hydro-oxidation sodium system is set, when Wastewater Form Circulating Cooling Water organic content is higher cause ultrafiltration and reverse osmosis frequent dirty stifled time, add sodium hydroxide adjustment water inlet pH value 9.0-10.0 to ultrafiltration water inlet and run.
Claims (1)
1. an electric power plant circulating water sewer recycling processing system, it is characterized in that: it comprises the more medium filter that order is arranged, one-level sodium form cation exchanger and second stage sodium form cation exchanger, described second stage sodium form cation exchanger by pipeline respectively with cooling tower, first-stage reverse osmosis device, ultra-filtration equipment is communicated with, described first-stage reverse osmosis device is respectively by pipeline and cooling tower, second level reverse osmosis apparatus is communicated with, pipeline between first-stage reverse osmosis device and second level reverse osmosis apparatus is provided with NaOH dosing pump, the product water of described second level reverse osmosis apparatus enters Boiler water Feeding System system, its dense water is connected to the rising pipe of second stage sodium form cation exchanger by the road, the dense water of described first-stage reverse osmosis enters product water tank through sodium filter device, described product water tank is communicated with NaCl dosing pump, described product water tank is connected to second stage sodium form regenerating cation exchanger liquid-inlet pipe by the road, deliver to one-level sodium form cation exchanger from the regeneration discharge opeing out of second stage sodium form cation exchanger through regeneration pipeline to regenerate,
Pipeline between described more medium filter and one-level sodium form cation exchanger is provided with S-WAT dosing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260934.4U CN204111459U (en) | 2014-05-21 | 2014-05-21 | A kind of electric power plant circulating water sewer recycling processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260934.4U CN204111459U (en) | 2014-05-21 | 2014-05-21 | A kind of electric power plant circulating water sewer recycling processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204111459U true CN204111459U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420260934.4U Expired - Fee Related CN204111459U (en) | 2014-05-21 | 2014-05-21 | A kind of electric power plant circulating water sewer recycling processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204111459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174539A (en) * | 2015-09-16 | 2015-12-23 | 南通海容热能环境工程有限公司 | Device for removing high valence ions in desulfurization wastewater of thermal power plant |
| CN110550789A (en) * | 2019-08-14 | 2019-12-10 | 东莞市金唐水处理设备有限公司 | Semiconductor pure water treatment system |
| CN112415965A (en) * | 2020-11-16 | 2021-02-26 | 华能碳资产经营有限公司 | Circulating water digital online monitoring control device and method |
-
2014
- 2014-05-21 CN CN201420260934.4U patent/CN204111459U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174539A (en) * | 2015-09-16 | 2015-12-23 | 南通海容热能环境工程有限公司 | Device for removing high valence ions in desulfurization wastewater of thermal power plant |
| CN110550789A (en) * | 2019-08-14 | 2019-12-10 | 东莞市金唐水处理设备有限公司 | Semiconductor pure water treatment system |
| CN110550789B (en) * | 2019-08-14 | 2024-04-05 | 东莞市金唐水处理设备有限公司 | Semiconductor pure water treatment system |
| CN112415965A (en) * | 2020-11-16 | 2021-02-26 | 华能碳资产经营有限公司 | Circulating water digital online monitoring control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |