CN211999310U - Ferrous sulfate concentrated processing system - Google Patents
Ferrous sulfate concentrated processing system Download PDFInfo
- Publication number
- CN211999310U CN211999310U CN202020652248.7U CN202020652248U CN211999310U CN 211999310 U CN211999310 U CN 211999310U CN 202020652248 U CN202020652248 U CN 202020652248U CN 211999310 U CN211999310 U CN 211999310U
- Authority
- CN
- China
- Prior art keywords
- nanofiltration device
- nanofiltration
- pressure pump
- outlet
- water
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a ferrous sulfate concentration treatment system, which comprises a booster pump, a multi-medium filter, a precision filter, a nanofiltration device group and a reverse osmosis device which are connected in sequence, wherein a first high-pressure pump is connected between the precision filter and the nanofiltration device group, a second high-pressure pump is arranged between the nanofiltration device group and the reverse osmosis device, and a PH adjusting device is also arranged between the second high-pressure pump and the nanofiltration device group; the nanofiltration device group comprises a first nanofiltration device, a second nanofiltration device and a third nanofiltration device, and a third high-pressure pump is arranged between the third nanofiltration device and the first nanofiltration device. The beneficial effects of the above technical scheme are: the method adopts a multi-stage filtration concentration mode to remove impurities in the raw water, recycles the filtered water reaching the standard, and carries out biochemical treatment on the obtained concentrated water, thereby not only saving the workload of biochemical treatment, but also saving water resources.
Description
Technical Field
The utility model relates to a waste water treatment technical field, concretely relates to ferrous sulfate concentrated processing system.
Background
The hot galvanizing technology is one of the most effective means for delaying the environmental corrosion of steel materials, wastewater containing Zn2+ and Fe2+ is generated in the acid washing and rinsing stages, mainly including FeSO4, FeCl2, ZnSO4, ZnCl2 and the like, the acid washing wastewater is treated by adopting a method of alkali neutralization at present, and the main reaction is as follows:
(1)H++OH-→H2O
(2)Fe3++3OH-→Fe(OH)3↓，Fe2++2OH-→Fe(OH)2↓，
(3)Zn2++2OH-→Zn(OH)2↓
however, the neutralization method is adopted to neutralize large amount of medicament, needs a large amount of backwater, has high equipment investment, generates a large amount of waste residues, has high ferrous sulfate content in the secondary pollution serious treatment process, and is unfavorable for the aeration oxidation process, so the pickling wastewater is not suitable for being treated by the neutralization method.
The recovery method mainly comprises five methods of vacuum concentration freezing crystallization (decompression evaporation freezing crystallization), acid addition freezing crystallization (non-evaporation freezing crystallization), natural crystallization-diffusion dialysis, polymeric ferric sulfate and iron scrap addition for producing ferrous sulfate. The first four methods mostly have the defects of large equipment investment, complex process and high operation technical requirement. The principle of the method for producing ferrous sulfate by adding iron filings is that the iron filings are added into waste acid, and the iron filings react with free acid in the waste acid to generate ferrous sulfate, so the specification, the adding amount and the adding mode of the iron filings have great influence on the reaction speed, the reaction limit and the subsequent treatment process.
In this case, it is necessary to concentrate the target product in the wastewater.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a ferrous sulfate concentrated processing system, product water can direct retrieval and utilization, need not the secondary water source, also does not produce secondary pollution, energy saving. The concentrated water is subjected to biochemical treatment, so that the treatment capacity is greatly reduced, and the emission treatment cost is reduced.
The utility model provides a technical scheme be: a ferrous sulfate concentration treatment system comprises a booster pump, a multi-media filter, a precision filter, a nanofiltration device group and a reverse osmosis device, wherein the booster pump, the multi-media filter, the precision filter, the nanofiltration device group and the reverse osmosis device are sequentially connected;
a first high-pressure pump is connected between the precision filter and the nanofiltration device group, a second high-pressure pump is arranged between the nanofiltration device group and the reverse osmosis device, and a PH adjusting device is also arranged between the second high-pressure pump and the nanofiltration device group;
the nanofiltration device group comprises a first nanofiltration device, a second nanofiltration device and a third nanofiltration device, wherein a water inlet of the first nanofiltration device is connected with the first high-pressure pump, the second nanofiltration device is connected with a concentrated solution outlet of the first nanofiltration device, the third nanofiltration device is connected with a permeation solution outlet of the first nanofiltration device, and a third high-pressure pump is arranged between the third nanofiltration device and the first nanofiltration device.
The beneficial effects of the above technical scheme are: the multi-media filter can remove particles and bacteria in the stock solution, and the precision filter can remove microorganisms, colloids, suspended particles, bacteria, viruses and heat sources in the stock solution; the nanofiltration device group can carry out salt separation and filtration on the stock solution for a plurality of times, so that impurities contained in the stock solution entering the reverse osmosis device are few, the water quality can reach the standard of recycling after passing through the reverse osmosis device, the obtained concentrated solution is subjected to biochemical treatment, and the using amount and the workload of chemicals for the biochemical treatment are saved.
Further, a permeate outlet of the second nanofiltration device is communicated with a water inlet of the first nanofiltration device through a first water return pipe. And the permeate liquid in the second nanofiltration device is recycled, so that more water can flow back to the final treatment step, and resources are saved.
Further, a concentrated solution outlet of the third nanofiltration device is communicated with a water inlet of the first nanofiltration device through a second water return pipe, and a permeate outlet of the third nanofiltration device is communicated with the second high-pressure pump. The second water return pipe can be used for returning the concentrated water in the third nanofiltration device, and the purpose of saving resources can be achieved.
Furthermore, the corresponding positions of the multi-medium filter, the first nanofiltration device, the second nanofiltration device, the third nanofiltration device and the reverse osmosis device are provided with an inlet and outlet pressure gauge and a water outlet flow meter, and the precise filter is provided with the inlet and outlet pressure gauge. The inlet and outlet pressure meter and the water outlet flow meter can reflect the current equipment state in real time so as to ensure that the whole system can normally operate.
Furthermore, the inlet and outlet of the first nanofiltration device, the second nanofiltration device, the third nanofiltration device and the reverse osmosis device are also provided with control valves.
And the control valve, the inlet and outlet pressure gauge and the water outlet flow meter are electrically connected with the plc. The control of the whole system can be realized through plc, and high-efficiency automation is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: the device comprises a booster pump 1, a multi-medium filter 2, a precision filter 3, a first high-pressure pump 4, a first nanofiltration device 5, a second nanofiltration device 6, a third high-pressure pump 7, a third nanofiltration device 8, a PH regulation device 9, a second high-pressure pump 10, a reverse osmosis device 11, a first return water pipe 12 and a second return water pipe 13.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1, the present embodiment provides a ferrous sulfate concentration treatment system, which includes a booster pump 1, a multi-media filter 2, a precision filter 3, a nanofiltration device group, and a reverse osmosis device 11, where the booster pump 1, the multi-media filter 2, the precision filter 3, the nanofiltration device group, and the reverse osmosis device 11 are connected in sequence; the booster pump 1 ensures that raw water can effectively pass through the multi-media filter 2. The multi-media filter 2 is arranged at the front section and is mainly used for removing tiny particles and bacteria, BOD5, COD and other non-granular materials, thereby effectively removing suspended impurities to clarify water, and simultaneously selecting a lower flow velocity to adapt to the possibility of future water quality deterioration. The multi-medium filter 2 has high filtering efficiency and filtering precision; the resistance is small, and the maintenance and the operation are convenient. The treatment flow and the sewage interception capacity are large, and the acid and alkali resistance is strong. The precision filter 3 can remove microorganisms, colloids, suspended particles, bacteria, viruses and heat sources in the stock solution;
a first high-pressure pump 4 is connected between the precision filter 3 and the nanofiltration device group, a second high-pressure pump 10 is arranged between the nanofiltration device group and the reverse osmosis device 11, and a PH adjusting device is also arranged between the second high-pressure pump 10 and the nanofiltration device group;
the nanofiltration device group comprises a first nanofiltration device 5, a second nanofiltration device 6 and a third nanofiltration device 8, wherein a water inlet of the first nanofiltration device 5 is connected with the first high-pressure pump 4, the second nanofiltration device 6 is connected with a concentrated solution outlet of the first nanofiltration device 5, the third nanofiltration device 8 is connected with a permeate outlet of the first nanofiltration device 5, and a third high-pressure pump 7 is arranged between the third nanofiltration device 8 and the first nanofiltration device 5. The raw water is powered by the first high-pressure pump 4 through the first nanofiltration device 5, and the permeate of the first nanofiltration device 5 is powered by the third high-pressure pump 7 to ensure that the permeate can effectively pass through the third nanofiltration device 8. The nano-filtration device group can retain substances with the size of about 1 nanometer, the molecular weight of 150-500 and the capacity of retaining soluble salts of 2-98 percent. Is a pressure-driven membrane process, and the mass transfer mechanism is a dissolution-diffusion mode.
The method adopts a multi-stage filtration concentration mode to remove impurities in the raw water, recycles the filtered water reaching the standard, and carries out biochemical treatment on the obtained concentrated water, thereby not only saving the workload of biochemical treatment, but also saving water resources. The nanofiltration device group can carry out salt separation and filtration on the stock solution for a plurality of times, so that impurities contained in the stock solution entering the reverse osmosis device 11 are few, the water quality can reach the standard of recycling after passing through the reverse osmosis device 11, the obtained concentrated solution is subjected to biochemical treatment, and the using amount and the workload of chemicals for the biochemical treatment are saved. The reverse osmosis device 11 uses a process of cross-flow filtration to prepare recycled water, the treated water flows through the membrane surface at a certain speed, the permeate penetrates through the membrane from the vertical direction, and meanwhile most of the retentate is carried out of the membrane module by the concentrated solution. The cross flow filtration mode reduces the thickness of a membrane surface concentration polarization layer, and can effectively reduce membrane pollution. According to different osmotic pressures of various materials, the purposes of separating, extracting, purifying and concentrating water quality are achieved. The treated water permeate can reach the recycling standard for recycling, and the concentrated solution is subjected to biochemical treatment, so that the whole system flow is completed.
And a permeate outlet of the second nanofiltration device 6 is communicated with a water inlet of the first nanofiltration device 5 through a first return water pipe 12. The permeate liquid in the second nanofiltration device 6 is recycled, so that more water can flow back to the final treatment step, and resources are saved. And the concentrated solution in the second nanofiltration device 6 is subjected to evaporation crystallization treatment.
And a concentrated solution outlet of the third nanofiltration device 8 is communicated with a water inlet of the first nanofiltration device 5 through a second water return pipe 13, and a permeate outlet of the third nanofiltration device 8 is communicated with the second high-pressure pump 10. The second water return pipe 13 can return water in the third nanofiltration device 8 for utilization, and the purpose of saving resources can be achieved. The third nanofiltration device 8 receives the permeate from the first nanofiltration device 5 to carry out secondary salt separation, the quality of the concentrated water of the third nanofiltration device 8 is better than that of the water inlet of the first nanofiltration device, so that the concentrated water can return to the first nanofiltration device 5 to continue treatment, and the third nanofiltration device 8 enables the treated permeate to reach the treatment standard of the subsequent process.
The multi-medium filter 2, the first nanofiltration device 5, the second nanofiltration device 6, the third nanofiltration device 8 and the reverse osmosis device 11 are respectively provided with an inlet and outlet pressure gauge and a water outlet flow meter at corresponding positions, and the precision filter 3 is provided with an inlet and outlet pressure gauge. The inlet and outlet pressure meter and the water outlet flow meter can reflect the current equipment state in real time so as to ensure that the whole system can normally operate. And control valves are also arranged at the inlet and outlet of the first nanofiltration device 5, the second nanofiltration device 6, the third nanofiltration device 8 and the reverse osmosis device 11.
The control valve, the inlet and outlet pressure gauge and the water outlet flow meter are all electrically connected with the plc. The control of the whole system can be realized through plc, and high-efficiency automation is realized.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance or implicit indication of the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. The ferrous sulfate concentration treatment system is characterized by comprising a booster pump (1), a multi-media filter (2), a precision filter (3), a nanofiltration device group and a reverse osmosis device (11), wherein the booster pump (1), the multi-media filter (2), the precision filter (3), the nanofiltration device group and the reverse osmosis device (11) are sequentially connected;
a first high-pressure pump (4) is connected between the precision filter (3) and the nanofiltration device group, a second high-pressure pump (10) is arranged between the nanofiltration device group and the reverse osmosis device (11), and a PH adjusting device (9) is also arranged between the second high-pressure pump (10) and the nanofiltration device group;
the nanofiltration device group comprises a first nanofiltration device (5), a second nanofiltration device (6) and a third nanofiltration device (8), wherein a water inlet of the first nanofiltration device (5) is connected with the first high-pressure pump (4), the second nanofiltration device (6) is connected with a concentrated liquid outlet of the first nanofiltration device (5), the third nanofiltration device (8) is connected with a permeating liquid outlet of the first nanofiltration device (5), and a third high-pressure pump (7) is arranged between the third nanofiltration device (8) and the first nanofiltration device (5).
2. The ferrous sulfate concentration treatment system according to claim 1, wherein the permeate outlet of the second nanofiltration device (6) is communicated with the water inlet of the first nanofiltration device (5) through a first water return pipe (12).
3. The ferrous sulfate concentration treatment system according to claim 1 or 2, wherein the concentrated liquid outlet of the third nanofiltration device (8) is communicated with the water inlet of the first nanofiltration device (5) through a second water return pipe (13), and the permeate outlet of the third nanofiltration device (8) is communicated with the second high-pressure pump (10).
4. The ferrous sulfate concentration treatment system according to claim 1, wherein the multi-media filter (2), the first nanofiltration device (5), the second nanofiltration device (6), the third nanofiltration device (8) and the reverse osmosis device (11) are respectively provided with an inlet and outlet pressure gauge and a water outlet flow meter at corresponding positions, and the precision filter (3) is provided with an inlet and outlet pressure gauge.
5. The ferrous sulfate concentration treatment system according to claim 4, wherein the inlet and outlet of the first nanofiltration device (5), the second nanofiltration device (6), the third nanofiltration device (8) and the reverse osmosis device (11) are further provided with control valves.
6. The ferrous sulfate concentration processing system of claim 5, further comprising a plc, wherein the control valve, the inlet/outlet pressure gauge, and the outlet flow meter are electrically connected to the plc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652248.7U CN211999310U (en) | 2020-04-26 | 2020-04-26 | Ferrous sulfate concentrated processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652248.7U CN211999310U (en) | 2020-04-26 | 2020-04-26 | Ferrous sulfate concentrated processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211999310U true CN211999310U (en) | 2020-11-24 |
Family
ID=73405706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020652248.7U Active CN211999310U (en) | 2020-04-26 | 2020-04-26 | Ferrous sulfate concentrated processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211999310U (en) |
-
2020
- 2020-04-26 CN CN202020652248.7U patent/CN211999310U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111285531A (en) | Method and system for concentrating high-salinity mine water | |
| CN205603386U (en) | Strong brine zero release membrane concentrator | |
| CN201458865U (en) | Reverse-osmosis film water treatment system with high recycling rate | |
| CN102936065A (en) | Method for treating wastewater | |
| CN102030433A (en) | Method for treating pure terephthalic acid refined wastewater | |
| CN106746057B (en) | Boiler feedwater treatment method and device with high water yield | |
| CN104496078A (en) | Treatment process of high-salinity wastewater | |
| CN203256008U (en) | Automatic-control reverse osmosis membrane wastewater treatment system | |
| CN212387875U (en) | Zero discharge device for evaporation concentration recycling of phosphating wastewater treatment | |
| CN112830618A (en) | Many grades of salt purification processing system of chlor-alkali trade waste water | |
| CN102701326A (en) | Seawater desalinizing technology deeply treated by reverse osmosis membrane after mixing wastewater with seawater | |
| CN211999310U (en) | Ferrous sulfate concentrated processing system | |
| CN111646605A (en) | Desalination system and water treatment system of second grade reverse osmosis and EDI combination | |
| CN203498181U (en) | System for recycling waste acid and waste alkali | |
| CN111392948A (en) | Ferrous sulfate concentrated processing system | |
| CN213537480U (en) | Water preparation equipment for pipeline direct drinking water | |
| CN211546262U (en) | Pretreatment cleaning wastewater treatment system | |
| CN211111362U (en) | Membrane separation concentrated water recycling device | |
| CN210237294U (en) | Near-zero emission treatment system for surface treatment wastewater | |
| CN114291937A (en) | Composite ion exchange-reverse osmosis coupled advanced water treatment system and process | |
| CN210065273U (en) | Multistage electrochemical water treatment system | |
| CN209740898U (en) | Fastener surface treatment waste water's processing apparatus | |
| CN208414055U (en) | A kind of cadmium wastewater resource utilization system and integrated equipment | |
| CN220597233U (en) | Processing system for recycling organic phosphine in pharmaceutical industry | |
| CN215480346U (en) | Boiler contains salt waste water recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |