CN208414055U - A kind of cadmium wastewater resource utilization system and integrated equipment - Google Patents
A kind of cadmium wastewater resource utilization system and integrated equipment Download PDFInfo
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- CN208414055U CN208414055U CN201820615559.9U CN201820615559U CN208414055U CN 208414055 U CN208414055 U CN 208414055U CN 201820615559 U CN201820615559 U CN 201820615559U CN 208414055 U CN208414055 U CN 208414055U
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Abstract
The utility model belongs to waste water recycling device technical field, more particularly to a kind of cadmium wastewater resource utilization system and integrated equipment, sand filter, char filter, cartridge filter, level-one NF membrane module, second level NF membrane module and ion exchange resin tank including the connection of successively pipeline, the concentrated water outlet conduit of level-one NF membrane module connects second level NF membrane module, the production water exit conduit connection ion exchange resin tank and cleaning water tank of level-one NF membrane module；The concentrated water outlet conduit of second level NF membrane module connects coagulating case, the production water exit conduit connection ion exchange resin tank and cleaning water tank of second level NF membrane module, and cleaning water tank respectively cleans level-one NF membrane module and second level NF membrane module by flushing water pump；Water qualified discharge or recycling after being ion exchanged resin container separation.The utility model cadmium circulation and stress, the cadmium rate of recovery is up to 98% or more, while the water quality discharged is excellent, recoverable or qualified discharge.
Description
Technical field
The utility model belongs to waste water recycling device technical field, and in particular to a kind of cadmium wastewater resource utilization system
And integrated equipment.
Background technique
Cadmium is toxic heavy metal, and mankind's long-term drinking is by the water and food of cadmium pollution, or causes cadmium slow poisoning, and occurs
The diseases such as hypertension, pulmonary emphysema, anosmia, Atrophic nasal mucosas and ulcer, osteomalacia.
Cadmium wastewater can be generated in cadmium telluride diaphragm solar battery production process, the processing method generallyd use has chemistry
The precipitation method, ferrite process, active carbon adsorption and ion-exchange etc..Treatment effect is barely satisfactory, and can not largely do
To effective recycling of cadmium, waste water is extremely difficult to emission request.
Utility model content
It is low, complex treatment process that the purpose of the utility model is to overcome the cadmium wastewater rate of recovery existing in the prior art
Defect provides a kind of cadmium rate of recovery is high, obtains after processing water quality excellent cadmium wastewater resource utilization system and integrated equipment.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of cadmium wastewater resource utilization system, it is characterised in that: coagulating case, sand including the connection of successively pipeline
Filter, char filter, cartridge filter, level-one NF membrane module, second level NF membrane module and ion exchange resin tank, the level-one NF film
The concentrated water outlet conduit of component connects the second level NF membrane module, described in the production water exit conduit connection of the level-one NF membrane module
Ion exchange resin tank and cleaning water tank；The concentrated water outlet conduit of the second level NF membrane module connects the coagulating case, institute
The production water exit conduit for stating second level NF membrane module connects the ion exchange resin tank and cleaning water tank, and the cleaning water tank passes through
Flushing water pump respectively cleans the level-one NF membrane module and second level NF membrane module；By the ion exchange resin tank, treated
Water qualified discharge or recycling.
Further, discharge water tank is flowed by the ion exchange resin tank treated water.
It further, is acid cation exchange resin in the ion exchange resin tank.
A kind of cadmium wastewater resource utilization integrated equipment, it is characterised in that: including the level-one being fixed on integrated frame
NF membrane module, second level NF membrane module, cleaning water tank, high-pressure pump, flushing water pump and concentrated water delivery pump；The level-one NF membrane module
Inlet is connect with cartridge filter pipeline, is connected with high pressure on the pipeline between the level-one NF membrane module and cartridge filter
Pump, the inlet of the second level NF membrane module are exported with the concentrated water of the level-one NF membrane module and are connect by pipeline, the second level
By being connected in coagulating case after placed in series concentrated water delivery pump, the cleaning water tank passes through for the concentrated water outlet of NF membrane module
The cleaning entrance of the level-one NF membrane module is connected to after placed in series flushing water pump.
It further, further include the ion exchange resin tank being fixed on the integrated frame, the ion exchange resin
Tank is connect with the production water exit conduit of the level-one NF membrane module and the second level NF membrane module.
Further, the level-one NF membrane module is two, and the second level NF membrane module is 1.
A kind of cadmium wastewater resource utilization system of the utility model and the beneficial effect of integrated equipment are:
1, cadmium wastewater obtains sediment containing cadmium, does to sediment first in coagulating case through chemical reaction precipitating
Resource utilization is realized after being further processed；Supernatant in coagulating case passes through sand filter, char filter and cartridge filter
Pass sequentially through level-one NF membrane module after filtering and the second level NF membrane module concentrated water obtained after separation containing cadmium ion back flow back into it is mixed
Solidifying reaction chamber carries out chemical precipitation recycling, and the production water of second level NF membrane module obtains after further being handled by ion exchange resin tank
To can qualified discharge water.Cadmium obtains circulation and stress, and the cadmium rate of recovery is up to 98% or more；The water quality of discharge is excellent simultaneously, and benefit can be recycled
With or qualified discharge.
2, level-one NF membrane module and second level NF membrane module obtain production water while cleaning water tank is flowed into, produces water and recycles,
NF membrane module is cleaned in timing, while guaranteeing that salt rejection rate is high, extends the service life of NF membrane module.
3, some or all of component by cadmium wastewater resource utilization system is needed to be integrally mounted at one according to factory
On a or multiple integrated frames, the civil engineering structure of traditional plant chimney stalk processing is not needed, particularly with lesser factory, greatly
The civil engineering period is shortened greatly, saves space, easy disassembly, and the cost of small factory's recovery processing waste water is greatly saved.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the cadmium wastewater resource utilization system construction drawing of the utility model embodiment；
Fig. 2 is the cadmium wastewater resource utilization integrated equipment main view of the utility model embodiment；
Fig. 3 is the top view of the cadmium wastewater resource utilization integrated equipment of the utility model embodiment.
In figure: 1, coagulating case, 2, sand filter, 3, char filter, 4, cartridge filter, 5, level-one NF membrane module, 6, two
Grade NF membrane module, 7, ion exchange resin tank, 8, cleaning water tank, 9, discharge water tank, 10, production water out, 11, concentrated water outlet, 12,
High-pressure pump, 13, flushing water pump, 14, concentrated water delivery pump, 15, inlet, 16, integrated frame.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
A kind of specific embodiment of cadmium wastewater resource utilization system of the utility model as shown in Figure 1, feature
Be: system includes coagulating case 1, the sand filter 2, char filter 3, cartridge filter 4, level-one NF film group of successively pipeline connection
Part 5, second level NF membrane module 6 and ion exchange resin tank 7, the concentrated water of level-one NF membrane module 5 export 11 pipelines and connect second level NF film
Component 6,10 pipeline of the production water out connection ion exchange resin tank 7 and cleaning water tank 8 of level-one NF membrane module 5；Second level NF film group
The concentrated water of part 6 exports 11 pipelines and connects coagulating case 1, and 10 pipeline of production water out of second level NF membrane module 6 connects ion exchange
Resin container 7 and cleaning water tank 8, cleaning water tank 8 is by flushing water pump 13 respectively to level-one NF membrane module 5 and second level NF membrane module 6
Cleaning；It is ion exchanged resin container 7 treated water qualified discharge or recycling.
In the present embodiment, it is ion exchanged resin container 7 treated water and flow into discharge water tank 9 and recycle.
It is acid cation exchange resin in ion exchange resin tank 7 in the present embodiment.
The specific cadmium wastewater resource utilization process of the present embodiment are as follows:
It feeds intake first into the high concentration cadmium wastewater flowed into coagulating case 1 and Na0H is added, and stirring and adjusting waste water
PH value is to 6-8, while vulcanized sodium and bodied ferric sulfate, which is added, into waste water makes cadmium ion and sulphion in waste water react generation
Sulfide-cadmium precipitation, and iron sulfide and ferric hydroxide precipitate are generated, using their cohesion and co-precipitation, accelerate cadmium sulfide
Precipitation and separation to remove most of cadmium ion in water removal.Supernatant in coagulating case 1 flows into sand filter 2 from upper layer and carried out
Filter, lower sediment thing enter sediment collecting pit, recycling are achieved the purpose that after handling again.It is upper in coagulating case 1
Clear liquid passes sequentially through sand filter 2, char filter 3 and cartridge filter 4 and gradually filters, and obtained liquid is using level-one NF membrane module
5 separation, the concentrated water that level-one NF membrane module 5 is isolated flow into second level NF membrane module 6 and separate again, what second level NF membrane module 6 obtained
Concentrated water is transported in coagulating case 1 by concentrated water delivery pump 14, carries out the precipitating recycling to cadmium ion again.Level-one NF film group
Production water a part of part 5 and second level NF membrane module 6 is discharged or is recycled after ion exchange resin tank 7 is handled, another
Part is discharged into cleaning water tank 8, cleaning water tank 8 by flushing water pump 13 periodically to level-one NF membrane module 5 and second level NF membrane module 6 into
Row cleaning, guarantees the salt rejection rate of NF film, and prolongs its service life.
Ion exchange resin is a kind of high molecular material with ion exchanging function.In the solution it can by itself from
Son is swapped with the jack per line ion in solution.By the difference of cation exchange groups property, ion exchange resin can be divided into cationic friendship
Two class of resin and anion exchange resin is changed, is acid cation exchange resin in the present embodiment ion exchange resin tank 7.
Ion exchange resin has many uses, mainly for separating of and purification.Such as water softening and produce from
Sub- water, the metal in recycling industrial wastewater separate rare metal and noble metal, separation and purification antibiotic etc..
The Cd2+ ion in waste water is removed by ion-exchange alternative, is generally exchanged using 732 acid cations
Resin.This step can further decrease the cadmium in waste water.
Reaction equation are as follows:
Sand filter 2 mainly retains silt, colloid, metal ion and organic matter, is adsorbed.Filtrate generally uses
Quartz sand is as filler.Be conducive to the impurity in water removal.That there are also filtration resistances is small for it, and large specific surface area, resistance to acid and alkali is strong, resists
The advantages that pollution is good.Waste water after coagulating sedimentation passes through quartz sand filtration, retains suspended matter and colloid.
Char filter includes carbon leaching material, further adsorbs suspended matter.
Nanofiltration (NF) is to make the solvent (general Chang Zhishui) in solution (a kind of semi-transparent by reverse osmosis membrane with enough pressure
Film) and separate, pressure direction is contrary with infiltration, and the hyperfiltration greater than osmotic pressure can be used to be separated, purified
And concentrate solution.Dissolving salt, colloid in water removal, bacterium, virus, bacterial endotoxin can be effectively removed using reverse osmosis technology
With the impurity such as most of organic matter.The main separation object of NF film is the divalent ion in solution, can be effective without chemicals
Remove salt in water.
For the system of the present embodiment except divalent Cd ion rate is up to 98% or more, the cadmium rate of recovery is high.
A kind of specific embodiment of cadmium wastewater resource utilization integrated equipment as shown in Figures 2 and 3, including be fixed on
Level-one NF membrane module 5, second level NF membrane module 6, cleaning water tank 8, high-pressure pump 12, flushing water pump 13 and concentrated water on integrated frame 16
Delivery pump 14；The inlet 15 of level-one NF membrane module 5 is connect with 4 pipeline of cartridge filter, level-one NF membrane module 5 and security personnel's filtering
High-pressure pump 12 is connected on pipeline between device 4, the concentrated water of the inlet 15 and level-one NF membrane module 5 of second level NF membrane module 6 goes out
Mouth 11 is connected by pipeline, and the concentrated water outlet 11 of second level NF membrane module 6 is mixed by being connected to after placed in series concentrated water delivery pump 14
In solidifying reaction chamber 1, cleaning water tank 8 is by being connected to the cleaning entrance of level-one NF membrane module 5 after placed in series flushing water pump 13.
Ion exchange resin tank 7 can also be fixed on integrated frame 16, ion exchange resin tank 7 and level-one NF film group
Part 5 is connected with 10 pipeline of production water out of second level NF membrane module 6.
In the present embodiment, level-one NF membrane module 5 is two, and second level NF membrane module 6 is 1.
In order to adapt to the wastewater treatment demand of small workshop, reduce the occupied area of sewage treatment equipment, the present embodiment is by work
Factory needs some or all of component by cadmium wastewater resource utilization system to be integrally mounted at one or more integrated frame
On frame 16, the civil engineering structure of traditional plant chimney stalk processing is not needed, the civil engineering period is substantially reduced, saves space, it is convenient
Dismounting, and the cost of small factory's recovery processing waste water is greatly saved.
Level-one NF membrane module 5 and second level NF membrane module 6 to production water flow into cleaning water tank 8 simultaneously, produce water and recycle,
NF membrane module is cleaned in timing, while guaranteeing that salt rejection rate is high, extends the service life of NF membrane module.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (6)
1. a kind of cadmium wastewater resource utilization system, it is characterised in that: including successively pipeline connection coagulating case (1),
Sand filter (2), char filter (3), cartridge filter (4), level-one NF membrane module (5), second level NF membrane module (6) and amberlite
Concentrated water outlet (11) pipeline of rouge tank (7), the level-one NF membrane module (5) connects the second level NF membrane module (6), the level-one
Production water out (10) pipeline of NF membrane module (5) connects the ion exchange resin tank (7) and cleaning water tank (8)；The second level
Concentrated water outlet (11) pipeline of NF membrane module (6) connects the coagulating case (1), the production water of the second level NF membrane module (6)
It exports (10) pipeline and connects the ion exchange resin tank (7) and cleaning water tank (8), the cleaning water tank (8) passes through ejected wash water
(13) are pumped respectively to clean the level-one NF membrane module (5) and second level NF membrane module (6)；By the ion exchange resin tank (7)
Water qualified discharge or recycling after separation.
2. a kind of cadmium wastewater resource utilization system according to claim 1, it is characterised in that: by the ion exchange
Resin container (7) treated water flows into discharge water tank (9).
3. a kind of cadmium wastewater resource utilization system according to claim 1, it is characterised in that: the amberlite
It is acid cation exchange resin in rouge tank (7).
4. a kind of cadmium wastewater resource utilization integrated equipment, it is characterised in that: including be fixed on integrated frame (16) one
Grade NF membrane module (5), second level NF membrane module (6), cleaning water tank (8), high-pressure pump (12), flushing water pump (13) and concentrated water delivery pump
(14)；The inlet (15) of the level-one NF membrane module (5) is connect with cartridge filter (4) pipeline, the level-one NF membrane module
(5) it is connected with high-pressure pump (12) on the pipeline between cartridge filter (4), the inlet of the second level NF membrane module (6)
(15) it is connect with the concentrated water of the level-one NF membrane module (5) outlet (11) pipeline, the concentrated water outlet of the second level NF membrane module (6)
(11) by being connected in coagulating case (1) after placed in series concentrated water delivery pump (14), the cleaning water tank (8) passes through pipeline
The cleaning entrance of the level-one NF membrane module (5) is connected to after series connection flushing water pump (13).
5. according to right ask 4 described in a kind of cadmium wastewater resource utilization integrated equipment, it is characterised in that: further include being fixed on
Ion exchange resin tank (7) on the one frame (16), the ion exchange resin tank (7) and the level-one NF membrane module
(5) it is connected with production water out (10) pipeline of the second level NF membrane module (6).
6. a kind of cadmium wastewater resource utilization integrated equipment according to claim 4 or 5, it is characterised in that: described one
Grade NF membrane module (5) is two, and the second level NF membrane module (6) is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615559.9U CN208414055U (en) | 2018-04-27 | 2018-04-27 | A kind of cadmium wastewater resource utilization system and integrated equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615559.9U CN208414055U (en) | 2018-04-27 | 2018-04-27 | A kind of cadmium wastewater resource utilization system and integrated equipment |
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| Publication Number | Publication Date |
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| CN208414055U true CN208414055U (en) | 2019-01-22 |
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| CN201820615559.9U Active CN208414055U (en) | 2018-04-27 | 2018-04-27 | A kind of cadmium wastewater resource utilization system and integrated equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960793A (en) * | 2019-12-12 | 2021-06-15 | 芜湖沃泰环保科技有限公司 | System for removing antibiotics from water body |
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2018
- 2018-04-27 CN CN201820615559.9U patent/CN208414055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960793A (en) * | 2019-12-12 | 2021-06-15 | 芜湖沃泰环保科技有限公司 | System for removing antibiotics from water body |
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