CN214990791U - Zero-discharge pretreatment device for nickel-containing wastewater - Google Patents
Zero-discharge pretreatment device for nickel-containing wastewater Download PDFInfo
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- CN214990791U CN214990791U CN202121181098.7U CN202121181098U CN214990791U CN 214990791 U CN214990791 U CN 214990791U CN 202121181098 U CN202121181098 U CN 202121181098U CN 214990791 U CN214990791 U CN 214990791U
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Abstract
The utility model discloses a zero-discharge pretreatment device for nickel-containing wastewater, which comprises a reaction tank, an MCR membrane tank and a membrane water production tank which are arranged in sequence; a stirring structure is arranged in the reaction tank; still be equipped with one in the reaction tank and be used for with the aeration equipment that liquid cooperation was used in the reaction tank, nickeliferous waste water zero row preprocessing device still includes an MCR membrane group, and MCR membrane group can be followed MCR membrane pond and moved to membrane product water pond, nickeliferous waste water zero row preprocessing device still includes a product water pump that is used for the interior liquid of suction MCR membrane group. The utility model has the advantages that: the technical scheme can solve the problems of large mud production amount, large occupied area and difficult mud discharge; no high molecular coagulant aid is added, so that the pollution and blockage of the rear-end film evaporator are prevented; the operation is stable, and the characteristic of unstable water quality change can be used; parameters of the pretreatment stage are optimized, the removal rate is improved, and the dosage is reduced; the sludge amount is reduced by more than 1/3, and the operation cost is obviously reduced.
Description
Technical Field
The utility model relates to a preprocessing device especially relates to a zero row preprocessing device of nickeliferous waste water.
Background
The defects and shortcomings of the prior art are as follows: chemical nickel wastewater is generated in a wastewater hole sealing stage in the aluminum product anodic oxidation industry, the water quantity is small, the conventional device mainly depends on resin adsorption, the regenerated wastewater has large quantity, and meanwhile, hazardous waste is generated; secondly, the existing wastewater treatment process has the problems of large dosage, large sludge amount, large energy consumption and the like; fourthly, the zero discharge process end of the chemical nickel wastewater has the problems of instability, more resin regeneration waste liquid, generation of new hazardous waste, frequent blockage of an evaporator and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a zero row preprocessing device of nickeliferous waste water, solves one or more among the above-mentioned prior art problem.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a zero row of preprocessing device of nickeliferous waste water, its innovation point lies in: comprises a reaction tank, an MCR membrane tank and a membrane water generating tank which are arranged in sequence; a stirring structure is arranged in the reaction tank; still be equipped with one in the reaction tank and be used for with the aeration equipment that liquid cooperation was used in the reaction tank, nickeliferous waste water zero row preprocessing device still includes an MCR membrane group, and MCR membrane group can be followed MCR membrane pond and moved to membrane product water pond, nickeliferous waste water zero row preprocessing device still includes a product water pump that is used for the interior liquid of suction MCR membrane group.
In some embodiments, the stirring structure is a stirrer and a motor that drives the stirrer to rotate.
In some embodiments, the membrane production reservoir is filled with clear water.
In some embodiments, the zero discharge nickel-containing wastewater pretreatment device further comprises a subsequent process water inlet structure, wherein the subsequent process water inlet structure comprises a pump bracket and a water inlet pump installed on the pump bracket.
The utility model has the advantages that: the technical scheme can solve the problems of large mud production amount, large occupied area and difficult mud discharge; no high molecular coagulant aid is added, so that the pollution and blockage of the rear-end film evaporator are prevented; the operation is stable, and the characteristic of unstable water quality change can be used; parameters of the pretreatment stage are optimized, the removal rate is improved, and the dosage is reduced; the sludge amount is reduced by more than 1/3, and the operation cost is obviously reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural diagram of a zero-discharge nickel-containing wastewater pretreatment device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the present invention includes:
a zero-discharge pretreatment device for nickel-containing wastewater comprises a reaction tank 1, an MCR membrane tank 2 and a membrane water production tank 3 which are arranged in sequence; a stirring structure 6 is arranged in the reaction tank 1; the reaction tank 1 is also internally provided with an aeration device 8 which is used for being matched with liquid in the reaction tank 1, the nickel-containing wastewater zero-discharge pretreatment device further comprises an MCR membrane group 5, the MCR membrane group 5 can move from the MCR membrane tank 2 to a membrane water production tank 3, and the nickel-containing wastewater zero-discharge pretreatment device further comprises a water production pump 4 for sucking out the liquid in the MCR membrane group 5.
In some embodiments, the stirring structure 6 is a stirrer and a motor that drives the stirrer to rotate.
In some embodiments, the membrane basin 3 contains clear water.
In some embodiments, the zero discharge nickel-containing wastewater pretreatment apparatus further comprises a subsequent process water inlet structure, and the subsequent process water inlet structure comprises a pump support 9 and a water inlet pump 7 mounted on the pump support 9.
The technical scheme can solve the problems of large mud production amount, large occupied area and difficult mud discharge; no high molecular coagulant aid is added, so that the pollution and blockage of the rear-end film evaporator are prevented; the operation is stable, and the characteristic of unstable water quality change can be used; parameters of the pretreatment stage are optimized, the removal rate is improved, and the dosage is reduced; the sludge amount is reduced by more than 1/3, and the operation cost is obviously reduced.
According to the technical scheme, raw water is discharged into a nickel-containing wastewater collecting tank, and then a lift pump is used for pumping the raw water into a pretreatment device; adjusting the pH value to about 7-8 in a pH adjusting unit of the reaction tank 1, wherein the pH adjusting unit is linked with a dosing pump by a pH meter; adding a small amount of flocculant into a micro-reaction unit of the reaction tank 1, wherein the flocculant can be adjusted according to needs, and the dosage is about 100-300 ppm; the effluent after micro-flocculation is left in the MCR membrane pool 2, the membrane pool is always in a micro-aeration state, the effluent is pumped from the inside of the membrane wire through a self-priming pump, and the operation-intermittence time is automatically adjusted according to the PLC, so that the automatic operation is realized; the MCR membrane effluent flows to the membrane production pond 3 and can be lifted to a rear-end treatment device through a rear-end pump.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (4)
1. The utility model provides a zero row of preprocessing device of nickeliferous waste water which characterized in that: comprises a reaction tank (1), an MCR membrane tank (2) and a membrane water generating tank (3) which are arranged in sequence; a stirring structure (6) is arranged in the reaction tank (1); still be equipped with one in reaction tank (1) and be used for with reaction tank (1) interior liquid cooperation aeration equipment (8) that use, nickeliferous waste water zero discharge preprocessing device still includes an MCR membrane group (5), MCR membrane group (5) can be followed MCR membrane pond (2) and moved to membrane product water pond (3), nickeliferous waste water zero discharge preprocessing device still includes one and is used for the product water pump (4) of the interior liquid of suction MCR membrane group (5).
2. The zero-discharge nickel-containing wastewater pretreatment device according to claim 1, characterized in that: the stirring structure (6) is a stirrer and a motor for driving the stirrer to rotate.
3. The zero-discharge nickel-containing wastewater pretreatment device according to claim 1, characterized in that: clear water is filled in the membrane water producing tank (3).
4. The zero-discharge nickel-containing wastewater pretreatment device according to claim 1, characterized in that: the zero-discharge nickel-containing wastewater pretreatment device further comprises a subsequent process water inlet structure, wherein the subsequent process water inlet structure comprises a pump bracket (9) and a water inlet pump (7) arranged on the pump bracket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181098.7U CN214990791U (en) | 2021-05-28 | 2021-05-28 | Zero-discharge pretreatment device for nickel-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181098.7U CN214990791U (en) | 2021-05-28 | 2021-05-28 | Zero-discharge pretreatment device for nickel-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214990791U true CN214990791U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202121181098.7U Active CN214990791U (en) | 2021-05-28 | 2021-05-28 | Zero-discharge pretreatment device for nickel-containing wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN214990791U (en) |
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2021
- 2021-05-28 CN CN202121181098.7U patent/CN214990791U/en active Active
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