CN206635147U - A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system - Google Patents
A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system Download PDFInfo
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- CN206635147U CN206635147U CN201720277445.3U CN201720277445U CN206635147U CN 206635147 U CN206635147 U CN 206635147U CN 201720277445 U CN201720277445 U CN 201720277445U CN 206635147 U CN206635147 U CN 206635147U
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Abstract
The utility model discloses a kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system, including the header outlet conduit of power plant three, preliminary sedimentation tank, the first medicine system, #1 aerated reactions pond, #1 depositing reservoirs, the second medicine system, #1 reaction tanks, microfiltration systems and disc tube reverse osmosis (dt-ro) system；The outlet of the header outlet conduit of power plant three is connected with the entrance of preliminary sedimentation tank, the outlet of preliminary sedimentation tank and the outlet of the first medicine system are connected with the entrance in #1 aerated reactions pond, the delivery port in #1 aerated reactions pond is connected with the water inlet of #1 depositing reservoirs, the outlet of the delivery port of #1 depositing reservoirs and the second medicine system is connected with the entrance of #1 reaction tanks, the delivery port of #1 reaction tanks is connected through microfiltration systems with the entrance of disc tube reverse osmosis (dt-ro) system, the system concentrated effect is good, and after film will not be caused to block and rob, maintenance cost is low.
Description
Technical field
The utility model belongs to energy-conserving and environment-protective field, is related to a kind of thermal power plant's high-salt wastewater processing system, and in particular to one
Kind thermal power plant high-salt wastewater dish tubular membrane concentrating and treating system.
Background technology
In recent years, with national environmental standard and increasingly strict, some developed areas or the ecological sensitive areas of policy
Domain has required high salinity wastewater zero discharge.In this context, increasing coal-burning power plant carries end high salt water zero discharge
Upper agenda, wherein main is desulfurization wastewater.
Desulfurization wastewater caused by heat-engine plant wet flue gas desulfurization has complicated pollutant component, organic matter and ammonia-nitrogen content
High, the features such as variation water quality scope is big, at present except there is a small number of power plant can be by desulfurization wastewater by being back to hydraulic flushing ash or grey field
Sprinkling, slag removing system and realize outside zero-emission, most of power plant still can not reuse.As can be seen here, to realize power plant end
Wastewater zero discharge, it is necessary to administered to desulfurization wastewater.
Current most of power plant carries out zero discharge treatment, but evaporative crystallization work by the way of evaporative crystallization to desulfurization wastewater
Process system is complicated, and equipment investment and operating cost are high, so as to limit its promoting the use in desulfurization wastewater zero-emission field.
Moreover, the crystal salt of its final output is the salt-mixture of no value, can only be used as solid waste landfill disposal, this is not only
Economic benefit can not be brought, and needs substantial amounts of solidification disposal of waste expense and place.To sum up, it is the normal of guarantee Zero discharging system
Run and reduce processing cost as far as possible, it is necessary to pay much attention to pretreatment and the concentration decrement of desulfurization wastewater.
From the point of view of situation about investigating at present, existing part power plant is entered using traditional coiled seawater reverse osmosis membrane to desulfurization wastewater
Row concentration, but organic matter and ammonia-nitrogen content are higher in desulfurization wastewater, constrain its concentrated effect to a certain extent, and transport for a long time
Guild causes the blocking and fouling of film, generally requires constantly to change and safeguards membrane component, operation expense is very high.
Utility model content
A kind of the shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided thermal power plant's high-salt wastewater dish
Tubular membrane concentrating and treating system, the system concentrated effect is good, and will not cause film block and rob after, maintenance cost is low.
To reach above-mentioned purpose, thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system described in the utility model includes
The header outlet conduit of power plant three, preliminary sedimentation tank, the first medicine system, #1 aerated reactions pond, #1 depositing reservoirs, the second medicine system, #1
Reaction tank, microfiltration systems and disc tube reverse osmosis (dt-ro) system；
The outlet of the header outlet conduit of power plant three is connected with the entrance of preliminary sedimentation tank, the outlet of preliminary sedimentation tank and the first dosing system
The outlet of system is connected with the entrance in #1 aerated reactions pond, and the delivery port in #1 aerated reactions pond is connected with the water inlet of #1 depositing reservoirs
Logical, the outlet of the delivery port of #1 depositing reservoirs and the second medicine system is connected with the entrance of #1 reaction tanks, the water outlet of #1 reaction tanks
Mouth is connected through microfiltration systems with the entrance of disc tube reverse osmosis (dt-ro) system.
First medicine system includes NaClO chemicals dosing plants.
Second medicine system includes NaOH chemicals dosing plants and Na2CO3Chemicals dosing plant, the outlet of NaOH chemicals dosing plants and
Na2CO3The outlet of chemicals dosing plant is connected with the entrance of #1 reaction tanks.
Also include crystallizing evaporator and DTRO production water reclamation systems, wherein, the outlet of the concentrated water of disc tube reverse osmosis (dt-ro) system with
The entrance of crystallizing evaporator is connected, and the production water of disc tube reverse osmosis (dt-ro) system is connected with the entrance of DTRO production water reclamation systems.
Also include sludge filter press, the base sludge outlet of preliminary sedimentation tank, the base sludge outlet of #1 depositing reservoirs and micro-filtration system
The sludge outlet of system is connected by the entrance of pipeline and Guan Houyu sludge filter press, the filtrate (liquid and preliminary sedimentation of sludge filter press
The entrance in pond is connected.
The bottom in #1 aerated reactions pond is provided with agitator and aerator.
The utility model has the advantages that：
Thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system described in the utility model is in concrete operations, using biography
System softening method carries out sofening treatment with the handling process that microfiltration systems are combined to thermal power plant's high-salt wastewater, not only makes water outlet water
Matter is more preferable, and substitutes traditional dosing, flocks and precipitation by microfiltration systems and separate, and reduces the cost of water process and takes up an area face
Product, while in processing, by adding organic matter and ammonia in sodium hypochlorite and aeration Combined Treatment thermal power plant high-salt wastewater
Nitrogen so that the organic matter and ammonia nitrogen in thermal power plant's high-salt wastewater are thoroughly removed, when reducing subsequent concentration film block and
The risk of fouling, ensures disc tube reverse osmosis (dt-ro) system run all right, and concentrated effect is significantly lifted.In addition, this practicality is new
Type abandoning tradition rolling sea-water reverse osmose uses disc tube reverse osmosis (dt-ro) system, wherein, runner dish cart in disc tube reverse osmosis (dt-ro) system
Face have certain way arrange salient point, water can be made to form turbulent flow during flowing, can effectively avoid film blocking and it is dense
Poor polarization phenomena, membranous system is further improved to entering organic matter of water and the tolerance degree of ammonia-nitrogen content, reduces organic fouling
Risk.
Further, the utility model is handled sludge by sludge filter press, while disc tube reverse osmosis (dt-ro) system is defeated
The production water and concentrated water gone out is reclaimed respectively, is truly realized zero-emission, while the technical grade NaCl of evaporative crystallization can be used as chlor-alkali
The chemical raw material of chemical industry, to obtain economic well-being of workers and staff.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 it is the header outlet conduit of power plant three, 2 be preliminary sedimentation tank, 3 be #1 aerated reactions pond, 4 is crystallizing evaporator, 5
It is #1 reaction tanks for sludge filter press, 6,7 be NaOH chemicals dosing plants, 8 be NaClO chemicals dosing plants, 9 be #1 depositing reservoirs, 10 is dish
Tubular type counter-infiltration system, 11 are Na2CO3Chemicals dosing plant, 12 are microfiltration systems.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system described in the utility model includes power plant three
Header outlet conduit 1, preliminary sedimentation tank 2, the first medicine system, #1 aerated reactions pond 3, #1 depositing reservoirs 9, the second medicine system, #1 are anti-
Answer pond 6, microfiltration systems 12 and disc tube reverse osmosis (dt-ro) system 10；The outlet of the header outlet conduit 1 of power plant three and the entrance of preliminary sedimentation tank 2
It is connected, the outlet of preliminary sedimentation tank 2 and the outlet of the first medicine system are connected with the entrance in #1 aerated reactions pond 3, and #1 aerations are anti-
The delivery port in pond 3 is answered to be connected with the water inlet of #1 depositing reservoirs 9, the outlet of the delivery port of #1 depositing reservoirs 9 and the second medicine system
It is connected with the entrance of #1 reaction tanks 6, the delivery ports of #1 reaction tanks 6 entering through microfiltration systems 12 and disc tube reverse osmosis (dt-ro) system 10
Mouth is connected.
First medicine system includes NaClO chemicals dosing plants 8；Second medicine system include NaOH chemicals dosing plants 7 and
Na2CO3Chemicals dosing plant 11, the outlet of NaOH chemicals dosing plants 7 and Na2CO3The outlet of chemicals dosing plant 11 and the entrance of #1 reaction tanks 6
It is connected.
The utility model also includes crystallizing evaporator 4 and DTRO production water reclamation systems, wherein, disc tube reverse osmosis (dt-ro) system 10
Concentrated water outlet be connected with the entrance of crystallizing evaporator 4, the production water of disc tube reverse osmosis (dt-ro) system 10 produces Water Sproading system with DTRO
The entrance of system is connected；The utility model also includes sludge filter press 5, the base sludge outlet of preliminary sedimentation tank 2, #1 depositing reservoirs 9
Base sludge is exported and the sludge outlet of microfiltration systems 12 is connected by the entrance of pipeline and Guan Houyu sludge filter press 5, dirty
The filtrate (liquid of mud filter press 5 is connected with the entrance of preliminary sedimentation tank 2；The bottom in #1 aerated reactions pond 3 is provided with agitator and aeration
Device.
Concrete operations of the present utility model are：
1) thermal power plant's high-salt wastewater of the header outlet conduit 1 of power plant three output enters preliminary sedimentation tank 2, is precipitated through preliminary sedimentation tank 2
Thermal power plant's high-salt wastewater afterwards enters #1 aerated reactions pond 3, while the NaClO of the first medicine system output enters #1 aerations
Reaction tank 3, aeration and NaClO fully react with the organic matter in thermal power plant high-salt wastewater and ammonia nitrogen in #1 aerated reactions pond 3,
The organic matter in thermal power plant's high-salt wastewater and ammonium oxidation are removed, then enters #1 after the clarification precipitation of #1 depositing reservoirs 9 again
In reaction tank 6；
2)Na2CO3The Na that chemicals dosing plant 11 exports2CO3And the NaOH that NaOH chemicals dosing plants 7 export enters #1 reaction tanks 6
In, and with the Ca in thermal power plant high-salt wastewater2+Ion and Mg2+Ion is reacted, and generates CaCO3Precipitation and Mg (OH)2Precipitation,
So as to remove the Ca in thermal power plant's high-salt wastewater2+Ion and Mg2+Ion, thermal power plant's high-salt wastewater that #1 reaction tanks 6 export enter
Into microfiltration systems 12, to the CaCO in thermal power plant's high-salt wastewater in microfiltration systems 123Precipitation and Mg (OH)2Precipitation is gone
Removing, thermal power plant's high-salt wastewater that microfiltration systems 12 export enters disc tube reverse osmosis (dt-ro) system 10, and in disc tube reverse osmosis (dt-ro) system
The NaCl in thermal power plant's high-salt wastewater is removed in system 10, completes the dish tubular membrane concentration of thermal power plant's high-salt wastewater.
Wherein, a large amount of suspensions in thermal power plant's high-salt wastewater are removed in sedimentation basin, the bulky grain that part easily settles
Thing and a small amount of organic matter, the water in #1 aerated reactions pond 3 is stirred by agitating device, makes aeration and NaClO and fire
The abundant haptoreaction of power plant's high-salt wastewater.
Thermal power plant's high-salt wastewater that microfiltration systems 12 export is the waste water based on NaCl, and thermal power plant's high-salt wastewater is through dish
Tubular type counter-infiltration system 10 is concentrated, and 80% fresh water of generation is entered in DTRO production water reclamation systems, and the 20% of generation
Concentrate enter crystallizing evaporator 4 carry out curing process.
It should be noted that the utility model economic benefit is obvious, using sodium hypochlorite-aeration and tubular type micro-filtration to thermoelectricity
Factory's high-salt wastewater is pre-processed, and the concentration of dish tubular membrane is combined technique of zero discharge with evaporative crystallization, is reducing thermal power plant's high salt
Also effectively softening and concentration are carried out while useless Organic substance in water and ammonia-nitrogen content to thermal power plant's high-salt wastewater.This practicality
The new organic fouling risk for avoiding film concentration systems, then the NaCl salt of technical purity grade is obtained through dividing salt to crystallize, and
The utility model automaticity is high, and whole process can reach low cost, realize the effect of zero-emission without efflux wastewater.
Claims (6)
1. a kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system, it is characterised in that including the header outlet pipe of power plant three
Road (1), preliminary sedimentation tank (2), the first medicine system, #1 aerated reactions pond (3), #1 depositing reservoirs (9), the second medicine system, #1 reactions
Pond (6), microfiltration systems (12) and disc tube reverse osmosis (dt-ro) system (10)；
The outlet of the header outlet conduit (1) of power plant three is connected with the entrance of preliminary sedimentation tank (2), the outlet and first of preliminary sedimentation tank (2)
The outlet of medicine system is connected with the entrance in #1 aerated reactions pond (3), delivery port and the #1 depositing reservoirs in #1 aerated reactions pond (3)
(9) water inlet is connected, the delivery port of #1 depositing reservoirs (9) and the outlet of the second medicine system and the entrance of #1 reaction tanks (6)
It is connected, the delivery port of #1 reaction tanks (6) is connected through microfiltration systems (12) with the entrance of disc tube reverse osmosis (dt-ro) system (10).
2. thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system according to claim 1, it is characterised in that described
One medicine system includes NaClO chemicals dosing plants (8).
3. thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system according to claim 2, it is characterised in that described
Two medicine systems include NaOH chemicals dosing plants (7) and Na2CO3Chemicals dosing plant (11), the outlet of NaOH chemicals dosing plants (7) and
Na2CO3The outlet of chemicals dosing plant (11) is connected with the entrance of #1 reaction tanks (6).
4. thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system according to claim 1, it is characterised in that also include
Crystallizing evaporator (4) and DTRO production water reclamation systems, wherein, the concentrated water outlet of disc tube reverse osmosis (dt-ro) system (10) and evaporative crystallization
The entrance of device (4) is connected, and the production water of disc tube reverse osmosis (dt-ro) system (10) is connected with the entrance of DTRO production water reclamation systems.
5. thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system according to claim 1, it is characterised in that also include
Sludge filter press (5), the base sludge outlet of preliminary sedimentation tank (2), the base sludge outlet of #1 depositing reservoirs (9) and microfiltration systems (12)
Sludge outlet be connected by the entrance of pipeline and Guan Houyu sludge filter press (5), the filtrate (liquid of sludge filter press (5) with
The entrance of preliminary sedimentation tank (2) is connected.
6. thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system according to claim 1, it is characterised in that #1 is aerated
The bottom of reaction tank (3) is provided with agitator and aerator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277445.3U CN206635147U (en) | 2017-03-21 | 2017-03-21 | A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720277445.3U CN206635147U (en) | 2017-03-21 | 2017-03-21 | A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system |
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| CN206635147U true CN206635147U (en) | 2017-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830440A (en) * | 2017-03-21 | 2017-06-13 | 西安西热水务环保有限公司 | A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system and method |
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2017
- 2017-03-21 CN CN201720277445.3U patent/CN206635147U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830440A (en) * | 2017-03-21 | 2017-06-13 | 西安西热水务环保有限公司 | A kind of thermal power plant's high-salt wastewater dish tubular membrane concentrating and treating system and method |
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