CN107055876A - The processing system and processing method of a kind of nickel-containing waste water - Google Patents
The processing system and processing method of a kind of nickel-containing waste water Download PDFInfo
- Publication number
- CN107055876A CN107055876A CN201710405485.6A CN201710405485A CN107055876A CN 107055876 A CN107055876 A CN 107055876A CN 201710405485 A CN201710405485 A CN 201710405485A CN 107055876 A CN107055876 A CN 107055876A
- Authority
- CN
- China
- Prior art keywords
- nickel
- waste water
- containing waste
- processing system
- consersion unit
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Abstract
The invention provides a kind of processing system of nickel-containing waste water and processing method, the processing system of nickel-containing waste water includes consersion unit, the heating unit heated to the consersion unit, the agitating device in the consersion unit.The nickel-containing waste water processing system of the present invention is reaction, the batch (-type) processing equipment of precipitation one, it is possible to increase the oxidation rate of hypophosphites；And realize chemical nickel and phosphatic removal simultaneously.
Description
Technical field
The application is related to field of waste water treatment, the processing system and processing method of particularly a kind of nickel-containing waste water.
Background technology
Nickel plating constantly expands as a kind of novel surface processing technology, its application, has been deep into chemical industry, vapour
The departments such as turner industry, electronics industry；But Ni-containing Plating Wastewater and the chemical nickle-plating wastewater nickel containing higher concentration, higher
COD etc..On the one hand, it could discharge or recycle after the processing of nickel-containing waste water needs, reduce the pollution to environment；On the other hand,
Nickel element in nickel-containing waste water has very high recovery value.
Processing and recovery method at present to nickel-containing waste water is generallyd include：Chemical precipitation method, chemical reduction method, electrolysis,
Ion-exchange, extraction etc., these method costs are high, and resource recycling is low.
In view of this, it is necessary to a kind of improved nickel-containing waste water processing system and processing method are provided, to solve above-mentioned skill
Art problem.
The content of the invention
In order to one of solve the above problems, present applicant proposes a kind of nickel-containing waste water processing system and processing method.
To achieve these goals, the application, which provides a kind of processing system of nickel-containing waste water, includes consersion unit, to described
Heating unit, the agitating device in the consersion unit of consersion unit heating.
As a further improvement on the present invention, the nickel-containing waste water processing system also includes being connected to before the consersion unit
The metering units at end.
As a further improvement on the present invention, the processing system of the nickel-containing waste water also includes being parallel to the consersion unit
The subsequent processing units and sludge concentration tank of outlet side.
As a further improvement on the present invention, the heating unit is the boiler of circulation, and the consersion unit is placed in institute
State in boiler.
For achieving the above object, the present invention also provides a kind of processing method of nickel-containing waste water, comprises the following steps：
S1, pending nickel-containing waste water is introduced in consersion unit, consersion unit is heated by heating unit so that in consersion unit
Temperature maintain between 50 DEG C ~ 60 DEG C；S2, adds sulfuric acid and adjusts the pH of pending nickel-containing waste water between 3 ~ 3.5；
S3, adds hydrogen peroxide and green vitriol, by heating unit by the temperature in consersion unit maintain 50 DEG C ~ 60 DEG C it
Between, stirring is lower to be reacted to forming free nickel ion；S4, heating unit stops heating to consersion unit, while adding 5%
Lime, the pH of the nickel-containing waste water after S3 step process is adjusted between 6 ~ 7, react 15 minutes；S5, adding concentration is
200ppm PAC is to obvious alumen ustum flco is formed, and stirring is lower to be continued to react 10 minutes；S6, adds the PAM that concentration is 5ppm
It is in cotton-shaped separation to solid suspension, stirring is lower to be continued to react 10 minutes；S7, stops stirring, static to completion after solid-liquor separation
Processing.
As a further improvement on the present invention, the nickel-containing waste water processing system also includes being connected to before the consersion unit
The metering units at end, pending nickel-containing waste water is introduced in consersion unit by metering units.
As a further improvement on the present invention, in step S2, the mol ratio of COD and hydrogen peroxide is 1:2, hydrogen peroxide and seven water
The mass ratio for closing ferrous sulfate is 1:1.
As a further improvement on the present invention, the processing system of the nickel-containing waste water also includes being parallel to the consersion unit
The subsequent processing units and sludge concentration tank of outlet side, the processing method of nickel-containing waste water also include being located at the S8 after S7:By lower floor
The sludge of sedimentation is discharged into sludge concentration tank, and supernatant liquor is discharged into follow-up treatment unit for waste water.
As a further improvement on the present invention, the mixing speed in S5 steps is faster than the mixing speed in S6.
As a further improvement on the present invention, in step S2, pH is 3.2, and pH is 6.5 in step S4.
Beneficial effects of the present invention：The nickel-containing waste water processing system of the present invention is reaction, the batch (-type) processing of precipitation one
Equipment, it is possible to increase the oxidation rate of hypophosphites；And realize chemical nickel and phosphatic removal simultaneously.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please is used to explain the application, does not constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the processing system of the nickel-containing waste water of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the application one
Section Example, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the application protection.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the limit of the present invention
System.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection or the connection of two element internals, can
To be to be joined directly together, it can also be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in figure 1, the nickel-containing waste water processing system of the present invention includes：Consersion unit, to the consersion unit heat
Heating unit, the agitating device in the consersion unit, the subsequent processing units for being parallel to the consersion unit outlet side
And sludge concentration tank.
Further, nickel-containing waste water processing system also includes the metering units for being connected to the consersion unit front end, nickeliferous
Waste water is entered in consersion unit by metering units, on-line metering Nickel-bearing Waste water and then can control the various medicaments that subsequently add
Amount.
In the present embodiment, the heating unit is the boiler of circulation, and the consersion unit is placed in the boiler.
The nickel-containing waste water processing method of the present invention comprises the following steps：
S1, pending nickel-containing waste water is introduced in consersion unit, and consersion unit is heated by heating unit so that reaction is set
Standby interior temperature is maintained between 50 DEG C ~ 60 DEG C, preferably 55 DEG C or so.
S2, regulates and controls pH, adds sulfuric acid and adjusts the pH of pending nickel-containing waste water between 3 ~ 3.5；It is preferred that pH is left 3.2
It is right.
S3, adds hydrogen peroxide and green vitriol, the temperature in consersion unit is maintained into 50 by heating unit
DEG C ~ 60 DEG C between, stirring is lower to be reacted to forming free nickel ion；
S4, heating unit stops heating to consersion unit, while 5% lime is added, by the nickel-containing waste water after S3 step process
PH adjust between 6 ~ 7, react 15 minutes；It is preferred that pH is adjusted to 6.5 or so.
S5, addition concentration stirs lower continuation to obvious alumen ustum flco is formed, quickly for 200ppm PAC and reacts 10 points
Clock, flocculation sediment is to remove nickel ion.
S6, it is in cotton-shaped separation to solid suspension to add PAM of the concentration for 5ppm, is slowly stirred lower continuation and reacts 10 points
Clock, further flocculation sediment is to remove nickel ion.
S7, stops stirring, static to be handled to completion after solid-liquor separation, the process about needs static 60 minutes, nickeliferous wadding
Condensate sinks complete.
Further, in S1 steps, pending nickel-containing waste water is introduced in consersion unit by metering units, can be counted online
The various pharmaceutical quantities added in amount Nickel-bearing Waste water and then control subsequent step.
In S3 steps, according to the COD of the nickeliferous waste liquid after S2 step process, hydrogen peroxide and seven hydrated sulfuric acids are quantitatively adding
Ferrous iron carries out depth contact break oxidation, is maintained the temperature in consersion unit between 50 DEG C ~ 60 DEG C by heating unit, under stirring
Reaction 30 minutes；The mol ratio of wherein COD and hydrogen peroxide is 1:2, the mass ratio of hydrogen peroxide and green vitriol is 1:1.
During being somebody's turn to do, in acid condition, the hydroxyl radical free radical that hydrogen peroxide and ferrous sulfate reaction are produced, the hydroxyl with high oxidative capacity
Organic matter in base free radical and waste liquid reacts, the complex compound in destruction waste liquid, simultaneous oxidation hypophosphorous acid root and by forming phosphorus
Sour iron is settled out dephosphorization to reduce COD, is that post precipitation separation nickel ion creates conditions.
The mixing speed removed in S5 steps in most nickel element, S5 steps is faster than the mixing speed in S6,
By the further flocculation sediment of slow stirring power to remove nickel ion in step 6.
S7, stops stirring, static 60 minutes, nickeliferous flocculate sank, and is handled after completion after solid-liquor separation.
The nickel-containing waste water processing method also includes being located at the S8 after step S7：It is dense that the sludge that lower floor is settled is discharged into sludge
Contracting pond, is easy to reclaim nickel element therein；Supernatant liquor is discharged into follow-up treatment unit for waste water, further row is reached after processing
The standard put and recycled.
In summary, the batch (-type) processing equipment that nickel-containing waste water processing system of the invention is reaction, precipitation is integral, can
Improve the oxidation rate of hypophosphites；And realize chemical nickel and phosphatic removal simultaneously.
It should be understood that, although this specification is been described by according to embodiment, but not each embodiment is only only comprising one
Vertical technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should be by specification
As an entirety, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiment.
The a series of detailed description of those listed above illustrating only for the possible embodiments of the present invention,
And be not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change all should
Within protection scope of the present invention.
Claims (10)
1. a kind of processing system of nickel-containing waste water, it is characterised in that：The heat supply heated including consersion unit, to the consersion unit
Unit, the agitating device in the consersion unit.
2. the processing system of nickel-containing waste water according to claim 1, it is characterised in that：The nickel-containing waste water processing system is also
Metering units including being connected to the consersion unit front end.
3. the processing system of nickel-containing waste water according to claim 1, it is characterised in that：The processing system of the nickel-containing waste water
Also include the subsequent processing units and sludge concentration tank for being parallel to the consersion unit outlet side.
4. the processing system of nickel-containing waste water according to claim 1, it is characterised in that：The heating unit is the heat of circulation
Water tank, the consersion unit is placed in the boiler.
5. a kind of processing method of the nickel-containing waste water of the processing system of the nickel-containing waste water based on described in claim 1, its feature exists
In comprising the following steps：
S1, pending nickel-containing waste water is introduced in consersion unit, and consersion unit is heated by heating unit so that reaction is set
Standby interior temperature is maintained between 50 DEG C ~ 60 DEG C；
S2, adds sulfuric acid and adjusts the pH of pending nickel-containing waste water between 3 ~ 3.5；
S3, adds hydrogen peroxide and green vitriol, the temperature in consersion unit is maintained into 50 DEG C ~ 60 by heating unit
Between DEG C, stirring is lower to be reacted to forming free nickel ion；
S4, heating unit stops heating to consersion unit, while 5% lime is added, by the nickel-containing waste water after S3 step process
PH adjust between 6 ~ 7, react 15 minutes；
S5, adds PAC of the concentration for 200ppm and is reacted 10 minutes to obvious alumen ustum flco, the lower continuation of stirring is formed；
S6, it is in cotton-shaped separation to solid suspension to add PAM of the concentration for 5ppm, and stirring is lower to be continued to react 10 minutes；
S7, stops stirring, static to handle to completion after solid-liquor separation.
6. the processing method of nickel-containing waste water according to claim 5, it is characterised in that：The nickel-containing waste water processing system is also
Metering units including being connected to the consersion unit front end, introduce reaction by metering units by pending nickel-containing waste water and set
It is standby interior.
7. the processing method of nickel-containing waste water according to claim 5, it is characterised in that：In step S2, COD and hydrogen peroxide
Mol ratio is 1:2, the mass ratio of hydrogen peroxide and green vitriol is 1:1.
8. the processing method of nickel-containing waste water according to claim 5, it is characterised in that：The processing system of the nickel-containing waste water
Also include the subsequent processing units and sludge concentration tank for being parallel to the consersion unit outlet side, the processing method of nickel-containing waste water is also
Including the S8 after S7:The sludge that lower floor is settled is discharged into sludge concentration tank, and supernatant liquor is discharged into follow-up wastewater treatment
Unit.
9. the processing method of nickel-containing waste water according to claim 5, it is characterised in that：Mixing speed in S5 steps compares S6
In mixing speed it is fast.
10. the processing method of nickel-containing waste water according to claim 5, it is characterised in that：In step S2, pH is 3.2, step
PH is 6.5 in S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405485.6A CN107055876A (en) | 2017-06-01 | 2017-06-01 | The processing system and processing method of a kind of nickel-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405485.6A CN107055876A (en) | 2017-06-01 | 2017-06-01 | The processing system and processing method of a kind of nickel-containing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107055876A true CN107055876A (en) | 2017-08-18 |
Family
ID=59616181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405485.6A Withdrawn CN107055876A (en) | 2017-06-01 | 2017-06-01 | The processing system and processing method of a kind of nickel-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107055876A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052765A (en) * | 2018-08-22 | 2018-12-21 | 广州桑尼环保科技有限公司 | A kind of chemical nickle-plating wastewater processing system and method |
| CN115747497A (en) * | 2022-11-22 | 2023-03-07 | 陕西三秦环保科技股份有限公司 | Nickel-containing hazardous waste recycling system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976531A (en) * | 2012-11-30 | 2013-03-20 | 冯云香 | Method for removing total phosphor by chemical nickel-plating wastewater treatment |
| CN104386874A (en) * | 2014-04-08 | 2015-03-04 | 红板（江西）有限公司 | Processing technology for high-concentration waste liquid in circuit board industry |
| CN104528987A (en) * | 2014-12-12 | 2015-04-22 | 深圳市祐林环保有限公司 | Nickel-containing wastewater treatment method and equipment |
-
2017
- 2017-06-01 CN CN201710405485.6A patent/CN107055876A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976531A (en) * | 2012-11-30 | 2013-03-20 | 冯云香 | Method for removing total phosphor by chemical nickel-plating wastewater treatment |
| CN104386874A (en) * | 2014-04-08 | 2015-03-04 | 红板（江西）有限公司 | Processing technology for high-concentration waste liquid in circuit board industry |
| CN104528987A (en) * | 2014-12-12 | 2015-04-22 | 深圳市祐林环保有限公司 | Nickel-containing wastewater treatment method and equipment |
Non-Patent Citations (1)
| Title |
|---|
| 冯粒克等: "化学沉淀法处理化学镀镍废水的研究", 《山东化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052765A (en) * | 2018-08-22 | 2018-12-21 | 广州桑尼环保科技有限公司 | A kind of chemical nickle-plating wastewater processing system and method |
| CN115747497A (en) * | 2022-11-22 | 2023-03-07 | 陕西三秦环保科技股份有限公司 | Nickel-containing hazardous waste recycling system and method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170818 |
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