CN208814790U - A kind of concentration strong brine softening of steel wastewater removes hard processing unit - Google Patents
A kind of concentration strong brine softening of steel wastewater removes hard processing unit Download PDFInfo
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- CN208814790U CN208814790U CN201821346438.5U CN201821346438U CN208814790U CN 208814790 U CN208814790 U CN 208814790U CN 201821346438 U CN201821346438 U CN 201821346438U CN 208814790 U CN208814790 U CN 208814790U
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Abstract
The utility model relates to a kind of concentration strong brine softenings of steel wastewater to remove hard processing unit, belong to water-treatment technology field, including concentration strong brine pond, water supply pump, reaction of high order sedimentation basin, pH conditioning tank, chemical tendering production pond, nanofiltration water supply pump, more medium filter, cartridge filter, high-pressure pump, nanofiltration device, nanofiltration production pond, nanofiltration concentrated water pond, lime or alkali throwing device, soda ash and aluminium polychloride throwing device, polyacrylamide throwing device, nanofiltration conditioning tank and sludge-tank.The steel wastewater concentration strong brine softening of the utility model efficiently solves the problems such as discharge of high rigidity strong brine influences ecological environment except hard processing unit.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, in particular to a kind of steel wastewater concentration strong brine softening is except hard
Processing unit, belong to water-treatment technology field.
Background technique
Usually with Ca in water2+、Mg2+Total content be known as the total hardness of water, the softening of water refers to the hardness part in water
The permanent hardness in water removal is mainly gone in removal or the method all removed, the softening of water.Due to hardness content in strong brine
It is higher, if will affect water quality either subsequent processing without processing, therefore, sofening treatment is carried out to strong brine and very must
It wants.
The softening technology of water has much at present, comprising: lime softening method and combinations thereof technique, absorption and ion exchange skill
Art, reinforcing crystallization technique, membrane technology etc..Lime softening and combinations thereof technique is common softening except hard one of method, passes through throwing
Add the medicaments such as coagulant, lime, is removed through filtering, realize the hard-off of water quality.
The appearance and application of membrane technology, so that improving time of industrial pure water and high purity water preparation, water pollution control and waste water
It receives recycle etc. and has obtained development in an all-round way.With the development in an all-round way of membrane technology, there are many new technologies, nanofiltration exists
Water softening, organic matter desalination purification etc. have apparent energy-saving effect, and nanofiltration membrane softening is not mainly using nanofiltration membrane to
Selection with valence state ion realizes the softening to water through characteristic, and film softens while going hardness, can also remove therein
Turbidity, coloration and organic matter, effluent quality are substantially better than other softening process, have pollution-free generation, easy to operate etc. excellent
Point.
Therefore, how membrane technology, chemical tendering technology and sedimentation to be organically combined, is concentrated for steel wastewater
Strong brine softening just becomes technical field technical problem urgently to be solved except hard processing.
Utility model content
A kind of steel for the problems such as influencing ecological environment the purpose of the utility model is to provide solution high rigidity strong brine discharge
Iron waste water is concentrated strong brine softening and removes hard processing unit.
The above-mentioned purpose of the utility model reaches by the following technical programs:
A kind of concentration strong brine softening of steel wastewater removes hard processing unit, it is characterised in that: including concentration strong brine pond,
Water supply pump, reaction of high order sedimentation basin, pH conditioning tank, chemical tendering produce pond, nanofiltration water supply pump, more medium filter, ensured public security
Filter, high-pressure pump, nanofiltration device, nanofiltration produce pond, nanofiltration concentrated water pond, lime or alkali throwing device, soda ash and aluminium polychloride
Throwing device, polyacrylamide throwing device, nanofiltration conditioning tank and sludge-tank；Wherein, nanofiltration conditioning tank passes through pipeline and valve
It is connect with concentration brine pit, the concentration strong brine pond is precipitated by the water supply pump and pipeline and the reaction of high order
Pond is connected, and the reaction of high order sedimentation basin is connect with the pH conditioning tank by pipeline, and the pH conditioning tank passes through
Pipeline produces pond with the chemical tendering and connect, and the chemical tendering produces pond and passes through the nanofiltration water supply pump and pipeline
It is connected with the more medium filter, the more medium filter is connect with the cartridge filter by pipeline,
The cartridge filter is connected by high-pressure pump with the nanofiltration device, the nanofiltration device by pipeline respectively with
The nanofiltration produces pond and the connection of nanofiltration concentrated water pond, and the bottom of the reaction of high order sedimentation basin passes through pipeline and the dirt
Mud sump is connected.
Preferably, the lime or alkali throwing device, soda ash and aluminium polychloride throwing device, polyacrylamide add
Device passes through dosing pump and pipeline respectively and connect with the reaction of high order sedimentation basin.
Preferably, the concentration strong brine pond and nanofiltration conditioning tank are provided with undercurrent mixer.
Preferably, the reaction of high order sedimentation basin mainly includes chemical reaction zone, coagulation dosing area, flocculation sedimentation-concentration
Area.
Preferably, the chemical reaction zone of the reaction of high order sedimentation basin is provided with flash mixer.
Preferably, the reaction of high order sedimentation basin is equipped with central draft tube and blender in coagulation dosing area.
Preferably, the reaction of high order sedimentation basin is equipped with reflux pump in flocculation sedimentation-enrichment region.
Preferably, flocculation sedimentation-enrichment region of the reaction of high order sedimentation basin is equipped with inclined tube module.
Preferably, the reaction of high order sedimentation basin Xu Ning precipitating-enrichment region pond bottom is equipped with the concentration of mud scraper system
Blender.
Preferably, the more medium filter filtrate selects quartz sand, anthracite or active carbon.
Preferably, the membrane component of the nanofiltration device is arranged using level-one two-period form.
Preferably, the sludge-tank is equipped with sludge pump, and the sludge pump is connected by pipeline with plate and frame filter press.
Preferably, strong brine Chi Youchao jump-over connection nanofiltration (NF) system is concentrated, realizes that strong brine is directly entered nanofiltration
(NF) device is handled, and realizes short distance operation.Communicating pipe, valve are set between pond, are conducive to the mutual standby of pond.
The utility model has the advantages that the utility model steel wastewater concentration strong brine, which softens, removes hard processing unit, at integrated use film
Reason technology, chemical tendering technology and sedimentation efficiently solve the problems such as discharge of high rigidity strong brine influences ecological environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the concentration strong brine softening of the utility model steel wastewater removes hard processing unit.
Main parts size title
1 concentration 2 water supply pump of strong brine pond
3 reaction of high order sedimentation basin, 4 pH conditioning tank
5 chemical tenderings produce 6 nanofiltration of pond (NF) water supply pump
7 more medium filter, 8 cartridge filter
9 high-pressure pump, 10 nanofiltration (NF) device
11 NF produce 12 NF concentrated water pond of pond
13 lime or 14 soda ash of alkali throwing device and aluminium polychloride throwing device
15 polyacrylamide throwing device, 16 NF conditioning tank
17 sludge-tanks
Specific embodiment
As shown in Figure 1, being the structural representation that the concentration strong brine softening of the utility model steel wastewater removes hard processing unit
Figure；Wherein, 1 is concentration strong brine pond, and 2 be water supply pump, and 3 be reaction of high order sedimentation basin, and 4 be pH conditioning tank, and 5 produce for chemical tendering
Pond, 6 be nanofiltration (NF) water supply pump, and 7 be more medium filter, and 8 be cartridge filter, and 9 be high-pressure pump, and 10 fill for nanofiltration (NF)
It sets, 11 produce pond for NF, and 12 be NF concentrated water pond, and 13 be lime or alkali throwing device, and 14 add dress for soda ash and aluminium polychloride
It sets, 15 be polyacrylamide throwing device, and 16 be NF conditioning tank, and 17 be sludge-tank；Dense salt is concentrated in the utility model steel wastewater
Water softening includes: concentration strong brine pond 1, water supply pump 2, reaction of high order sedimentation basin 3, pH conditioning tank 4, chemistry except hard processing unit
Softening production pond 5, nanofiltration (NF) water supply pump 6, more medium filter 7, cartridge filter 8, high-pressure pump 9, nanofiltration (NF) device 10,
NF produces pond 11, NF concentrated water pond 12, lime or alkali throwing device 13, soda ash and aluminium polychloride throwing device 14, polyacrylamide
Amine throwing device 15, NF conditioning tank 16, sludge-tank 17；Wherein, NF conditioning tank 16 is connected by pipeline and valve and concentration brine pit 1
It connects, the concentration strong brine pond 1 is connected by the water supply pump 2 and pipeline with the reaction of high order sedimentation basin 3, institute
The reaction of high order sedimentation basin 3 stated is connect with the pH conditioning tank 4 by pipeline, and the pH conditioning tank 4 passes through pipeline and institute
The chemical tendering stated produces pond 5 and connects, and the chemical tendering produces pond 5 and passes through described nanofiltration (NF) water supply pump 6 and pipeline
It is connected with the more medium filter 7, the more medium filter 7 and the cartridge filter 8 are connected by pipeline
It connects, the cartridge filter 8 is connected by high-pressure pump 9 with described nanofiltration (NF) device 10, the nanofiltration (NF) dress
It sets 10 to connect with the production pond 11 NF and NF concentrated water pond 12 respectively by pipeline, nanofiltration produces water and enters NF production pond 11, receives
Filter concentrated water enters NF concentrated water pond 12；On the other hand, the lime or alkali throwing device 13, soda ash and aluminium polychloride add dress
14, polyacrylamide throwing device 15 is set to connect by dosing pump and pipeline with the reaction of high order sedimentation basin 3 respectively, it is described
The bottom of reaction of high order sedimentation basin 3 be connected with the sludge-tank 17 by pipeline.
Concentration strong brine main source includes: that the composite wastewater of (1) steel and iron industry and sanitary sewage pass through pretreatment+depth
Reverse osmosis concentrated water after handling (UF+RO)；(2) after coking wastewater takes UF+RO advanced treating after production district biochemical treatment
Reverse osmosis concentrated water (strong brine A)；(3) cold rolling oil-containing waste water is anti-after taking UF+RO advanced treating after production district life is handled
It permeates concentrated water (strong brine B)；Strong brine A and strong brine B concentration is delivered to NF conditioning tank, and NF conditioning tank and RO concentration brine pit are logical
Piping, valve connection.
Above-mentioned steel wastewater concentration strong brine softening is as follows except the process flow of hard processing unit:
Strong brine A and strong brine B concentration is delivered to NF conditioning tank, regulating water quality and water, NF conditioning tank and the dense salt of concentration
Pond passes through pipeline, valve connection, and two Chi Douyou undercurrent mixers.The mixed water of homogeneous, is lifted by water supply pump
Lime is added in reaction of high order sedimentation basin and removes temporary hardness for reaction of high order sedimentation basin, and addition soda ash goes permanent in water removal
Property hardness, while PAC and PAM is added, by the performances such as flocculating, precipitating except hard, clear effect.Reaction of high order sedimentation basin generates
Sludge stored by sludge-tank, and add and plate and frame filter press is promoted to by sludge pump pressurization after appropriate flocculant is dehydrated,
Dewatered sludge is stored through bucket, is periodically transported outward.Reaction of high order sedimentation basin produces water and flows automatically after sulphur acid for adjusting pH into chemistry
Softening produces pond.Enter more medium filter by NF water supply pump, fine particle, suspended matter, colloid in main removal water inlet
Equal impurity guarantee that water outlet meets the requirement of NF water inlet, and more medium filter is discharged through cartridge filter, and before cartridge filter
After add and enter nanofiltration (NF) device after antisludging agent and reducing agent and further remove hardness, COD, suspended matter, divalent ion, nanofiltration
It produces water and enters NF production pond, nanofiltration concentrated water enters NF concentrated water pond.
Concentration brine pit 1 and NF conditioning tank 16 are both provided with undercurrent mixer, guarantee that influent quality is uniform.Reaction of high order is heavy
Shallow lake pond 3 mainly includes chemical reaction zone, coagulation dosing area, flocculation sedimentation-enrichment region.The chemical reaction of reaction of high order sedimentation basin 3
Area adds white lime or alkali, and residence time 30min, adds soda ash and aluminium polychloride (PAC) residence time is 15min, leads to
The flash mixer for crossing setting guarantees medicament and raw water fast reaction.The coagulation dosing area 3-2 of reaction of high order sedimentation basin 3 adds poly-
Acrylamide (PAM), residence time 630s realize the hybrid reaction of water inlet, the present apparatus by central draft tube and blender
Reflux pump is equipped in flocculation sedimentation-enrichment region 3-3 to control energy dissipation and sludge circulation to carry out flocculation reaction, after generating energy
The biggish uniform alumen ustum of rapid precipitation.Two functions of flocculation sedimentation and concentrating and precipitating are combined in one by reaction of high order sedimentation basin 3
Occupied area is saved in pond, and alumen ustum is separated from water using inclined tube module by flocculation sedimentation-enrichment region, and the settling zone residence time is
53min.3 flocculation sedimentations of reaction of high order sedimentation basin-enrichment region 3-3 bottom of pond portion accelerates dense equipped with the concentration blender of mud scraper system
Contracting, to 3-2, excess sludge is periodically handled the continuous circulating reflux of partial sludge.The filtrate selection quartz sand of more medium filter 7,
Anthracite or active carbon.Membrane component in nanofiltration (NF) device 10 is arranged using level-one two-period form, is pressurized between band section, two sections of concentrated waters
Reflux.
Strong brine pond 1 is concentrated by super jump-over connection nanofiltration (NF) device 10, realizes that strong brine is directly entered nanofiltration (NF) dress
It sets 10 to be handled, realizes short distance operation, communicating pipe, valve are set between pond, are conducive to the mutual standby of pond.
Embodiment 1
Certain steel Quality Products Base project sewage treatment plant is using above-mentioned apparatus processing concentration strong brine, the dense salt of the concentration of water inlet
Total hardness 3200mg/L, the Ca hardness 1800mg/L of water；Strong brine is concentrated and enters reaction of high order sedimentation basin through water supply pump, in multistage
The white lime Ca (OH) of 1600mg/L is added in reaction settling basin2Removal concentration strong brine temporary hardness, it is pure to be added 1700mg/L
Alkali goes permanent hardness in water removal, is separately added into the polyacrylamide of aluminium polychloride (PAC) and 0.35mg/L of 15mg/L
(PAM), by the performances such as flocculating, precipitating except hard, clear effect；Reaction of high order sedimentation basin produces water after sulphur acid for adjusting pH, leads to
It crosses NF water supply pump and enters more medium filter, the impurity such as fine particle, suspended matter, colloid in removal water inlet are discharged through ensuring public security
Enter nanofiltration (NF) device after filter and further removes hardness, COD, suspended matter, divalent ion.
The present embodiment NF produces total hardness of water 8.9mg/L, and for total removal rate up to 99.7%, the Ca hardness of water outlet is 4.2mg/L, goes
Except rate is 99.8%.NF concentrated water is utilized for production system expendable.
Embodiment 2
Concentration strong brine is handled using above-mentioned apparatus, water quality is as follows, total hardness 1980mg/L, Ca hardness 1350mg/L,
Concentration salt water enters the white lime Ca (OH) of addition 1200mg/L after reaction of high order sedimentation basin2Removal concentration salt water temporary hardness,
800mg/L soda ash is added and goes permanent hardness in water removal, is separately added into the aluminium polychloride (PAC) of 10mg/L and gathering for 0.4mg/L
It closes aluminium chloride (PAC), realizes except hard the effects of by flocculating, precipitating.Water is produced after sulphur acid for adjusting pH, is entered by NF water supply pump
More medium filter removes the impurity such as fine particle, suspended matter, the colloid in water inlet.Water outlet enters NF after cartridge filter
Device further removes hardness, COD, suspended matter, divalent ion.
The present embodiment NF produces total hardness of water 4.7mg/L, removal rate 99.8%, and water outlet Ca hardness is 3.2mg/L, removal rate
It is 99.8%, the final water that produces realizes that softening removes hard effect.
Claims (10)
1. a kind of steel wastewater concentration strong brine softening removes hard processing unit, it is characterised in that: including concentration strong brine pond, supply
Water pump, reaction of high order sedimentation basin, pH conditioning tank, chemical tendering produce pond, nanofiltration water supply pump, more medium filter, security personnel's filtering
Device, high-pressure pump, nanofiltration device, nanofiltration produce pond, nanofiltration concentrated water pond, lime or alkali throwing device, soda ash and aluminium polychloride and throw
Feeder apparatus, polyacrylamide throwing device, nanofiltration conditioning tank and sludge-tank；Wherein, nanofiltration conditioning tank by pipeline and valve with
Brine pit connection is concentrated, the concentration strong brine pond passes through the water supply pump and pipeline and the reaction of high order sedimentation basin
It is connected, the reaction of high order sedimentation basin is connect with the pH conditioning tank by pipeline, and the pH conditioning tank passes through pipe
Road produces pond with the chemical tendering and connect, the chemical tendering produce pond by the nanofiltration water supply pump and pipeline and
The more medium filter is connected, and the more medium filter is connect with the cartridge filter by pipeline, institute
The cartridge filter stated is connected by high-pressure pump with the nanofiltration device, the nanofiltration device by pipeline respectively with institute
The nanofiltration stated produces pond and the connection of nanofiltration concentrated water pond, and the bottom of the reaction of high order sedimentation basin passes through pipeline and the sludge
Pond is connected.
2. steel wastewater concentration strong brine softening as described in claim 1 removes hard processing unit, it is characterised in that: described
Lime or alkali throwing device, soda ash and aluminium polychloride throwing device, polyacrylamide throwing device pass through respectively dosing pump and
Pipeline is connect with the reaction of high order sedimentation basin.
3. steel wastewater concentration strong brine softening as claimed in claim 2 removes hard processing unit, it is characterised in that: described dense
Reduced concentration brine pit and nanofiltration conditioning tank are provided with undercurrent mixer.
4. steel wastewater concentration strong brine softening as claimed in claim 3 removes hard processing unit, it is characterised in that: described more
Order reaction sedimentation basin mainly includes chemical reaction zone, coagulation dosing area, flocculation sedimentation-enrichment region.
5. steel wastewater concentration strong brine softening as claimed in claim 4 removes hard processing unit, it is characterised in that: described more
The chemical reaction zone of order reaction sedimentation basin is equipped with blender.
6. steel wastewater concentration strong brine softening as claimed in claim 5 removes hard processing unit, it is characterised in that: described more
Order reaction sedimentation basin is equipped with central draft tube and blender in coagulation dosing area.
7. steel wastewater concentration strong brine softening as claimed in claim 6 removes hard processing unit, it is characterised in that: described more
Order reaction sedimentation basin is equipped with reflux pump in flocculation sedimentation-enrichment region.
8. steel wastewater concentration strong brine softening as claimed in claim 7 removes hard processing unit, it is characterised in that: described more
Flocculation sedimentation-enrichment region of order reaction sedimentation basin is equipped with inclined tube module.
9. steel wastewater concentration strong brine softening as claimed in claim 8 removes hard processing unit, it is characterised in that: described more
Order reaction sedimentation basin flocculation sedimentation-enrichment region bottom of pond portion is equipped with the concentration blender of mud scraper system.
10. steel wastewater concentration strong brine softening as claimed in claim 9 removes hard processing unit, it is characterised in that: described
More medium filter filtrate selects quartz sand, anthracite or active carbon；The membrane component of the nanofiltration device uses level-one two-period form
Arrangement；The sludge-tank is equipped with sludge pump, and the sludge pump is connected by pipeline with plate and frame filter press.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423046A (en) * | 2020-04-23 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Power plant desulfurization wastewater advanced treatment and resource utilization system and method |
| CN111777220A (en) * | 2020-07-07 | 2020-10-16 | 南方汇通股份有限公司 | Novel softening treatment method for high-salinity and high-permanent-hardness wastewater |
| CN112794493A (en) * | 2020-12-23 | 2021-05-14 | 北京赛诺水务科技有限公司 | A system and method for reducing the scaling of reverse osmosis concentrated brine caustic soda/lime soda softening treatment |
| CN114031220A (en) * | 2021-11-30 | 2022-02-11 | 波塞冬(江苏)新材料科技有限公司 | Membrane treatment process for high-salt industrial wastewater |
| CN114956396A (en) * | 2021-02-25 | 2022-08-30 | 河南省力华全环保科技有限公司 | High-difficulty electroplating wastewater treatment device |
-
2018
- 2018-08-20 CN CN201821346438.5U patent/CN208814790U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423046A (en) * | 2020-04-23 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Power plant desulfurization wastewater advanced treatment and resource utilization system and method |
| CN111777220A (en) * | 2020-07-07 | 2020-10-16 | 南方汇通股份有限公司 | Novel softening treatment method for high-salinity and high-permanent-hardness wastewater |
| CN112794493A (en) * | 2020-12-23 | 2021-05-14 | 北京赛诺水务科技有限公司 | A system and method for reducing the scaling of reverse osmosis concentrated brine caustic soda/lime soda softening treatment |
| CN114956396A (en) * | 2021-02-25 | 2022-08-30 | 河南省力华全环保科技有限公司 | High-difficulty electroplating wastewater treatment device |
| CN114031220A (en) * | 2021-11-30 | 2022-02-11 | 波塞冬(江苏)新材料科技有限公司 | Membrane treatment process for high-salt industrial wastewater |
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Address after: Room 805, International Building, No. 1 Zhichun Road, Haidian District, Beijing 100083 Patentee after: BEIJING SCINOR WATER CO.,LTD. Address before: 100083 Beijing, Zhichun Road, College of International Building, Room 806, room 1, No. Patentee before: BEIJING SCINOR WATER CO.,LTD. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Assignor: BEIJING SCINOR WATER CO.,LTD. Contract record no.: X2021980013263 Denomination of utility model: A treatment device for softening and removing hardness of concentrated brine of iron and steel wastewater Granted publication date: 20190503 License type: Exclusive License Record date: 20211124 |
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Denomination of utility model: A treatment device for softening and removing hardness of concentrated brine of iron and steel wastewater Effective date of registration: 20211125 Granted publication date: 20190503 Pledgee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Pledgor: BEIJING SCINOR WATER CO.,LTD. Registration number: Y2021110000065 |
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Assignee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Assignor: BEIJING SCINOR WATER CO.,LTD. Contract record no.: X2021980013263 Date of cancellation: 20230530 |
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Date of cancellation: 20230530 Granted publication date: 20190503 Pledgee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Pledgor: BEIJING SCINOR WATER CO.,LTD. Registration number: Y2021110000065 |
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