CN208667309U - Zinc-nickel waste water treatment system - Google Patents
Zinc-nickel waste water treatment system Download PDFInfo
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- CN208667309U CN208667309U CN201820317225.3U CN201820317225U CN208667309U CN 208667309 U CN208667309 U CN 208667309U CN 201820317225 U CN201820317225 U CN 201820317225U CN 208667309 U CN208667309 U CN 208667309U
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- waste water
- nickel
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- zinc
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Abstract
A kind of zinc-nickel waste water treatment system, including the nickel-containing waste water collecting pit for collecting zinc-nickel waste water, nickel-containing waste water collecting pit is connected to reaction of high order pond, added with chelating alkali, heavy metal chelating agent, PAC and PAM in reaction of high order pond, reaction of high order pond is connected to inclined-plate clarifying basin, and inclined-plate clarifying basin top is connected to second order reaction pond, and lower part is connected to sludge-tank, second order reaction pond is connected to microfiltration membranes circulatory pool, and microfiltration membranes circulatory pool is connected to comprehensive wastewater collecting pit.Zinc-nickel waste water, which is sent by nickel-containing waste water collecting pit to reaction of high order pond, to react, generate bulky grain flocculate not soluble in water, and it is precipitated in inclined-plate clarifying basin, the supernatant effluent of precipitating enters second order reaction pond, sediment is discharged into sludge-tank, supernatant effluent removes nickel by microfiltration membrane system in microfiltration membranes circulatory pool, handles waste water up to standard and enters comprehensive wastewater collecting pit.The utility model is by repeatedly reacting, and by the heavy metals removal in zinc-nickel waste water, making that treated, waste water reaches discharge standard, avoids polluting.
Description
Technical field
The utility model relates to industrial waste water treatments, more particularly to a kind of zinc-nickel waste water treatment system.
Background technique
Zinc-nickel waste water can be just discharged after treatment, otherwise will cause serious environmental pollution；However existing processing
For Processes and apparatus there are shortcomings, it is big that the metal that existing treatment process uses captures dosage, and every weight in processed waste water
Metal ratio is higher, and treatment effect is not good enough, and water quality is not limpid enough, at high cost.Therefore, it is necessary to design a kind of better zinc-nickel
Waste water treatment system, to solve the above problems.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of zinc-nickel waste water treatment system, and it is useless to remove zinc-nickel
Heavy metal in water, making that treated, waste water reaches discharge standard.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of zinc-nickel waste water treatment system, including the nickel-containing waste water collecting pit for collecting zinc-nickel waste water, the Nickel-bearing Waste
Water collecting pit is connected to reaction of high order pond, and chelating alkali, heavy metal chelating agent, PAC and PAM are added in the reaction of high order pond,
The reaction of high order pond is connected to inclined-plate clarifying basin, and the inclined-plate clarifying basin top is connected to second order reaction pond, and lower part is connected to
Sludge-tank, the second order reaction pond are connected to microfiltration membranes circulatory pool, and the microfiltration membranes circulatory pool is connected to comprehensive wastewater collecting pit.
Further, elevator pump is equipped between the nickel-containing waste water collecting pit and the reaction of high order pond, the elevator pump
Opening and closing and flow are automatically controlled system control.
Further, the reaction of high order pond includes the first conditioning tank, reaction tank, the second conditioning tank and first being sequentially connected
Flocculation basin, first conditioning tank are connected to the nickel-containing waste water collecting pit, are added with acidic materials in first conditioning tank,
Make wherein pH value of waste water heavy metal chelating agent is added in the reaction tank less than 4, to remove the heavy metal in waste water, described the
Added with chelating alkali in two conditioning tanks, wherein pH value of waste water control is made to be 9-12, in first flocculation basin added with PAC,
PAM, to generate alumen ustum, first flocculation basin is connected to the inclined-plate clarifying basin.
Further, first conditioning tank is connected to concentrated acid wastewater collection pond, and collecting in the concentrated acid wastewater collection pond has
Concentrated acid waste water, the concentrated acid waste water are added in first conditioning tank, to adjust the pH value of wherein waste water, first conditioning tank
The pH value control of interior waste water is 2-4.
Further, heavy metal chelating agent ingredient is DDTC sodium salt in the reaction tank, and proportion is that 25kgDDTC is dissolved into 1
Ton water, when nickel content is 100mg/L or less in waste water, the DDTC sodium salt solution of 30-40L/ tons of addition in the reaction tank leads to
It crosses the heavy metal chelating agent and nickel, zinc, copper heavy metal is generated into celadon complex compound, to remove removing heavy metals.
Further, the second order reaction pond includes the third conditioning tank for being connected to the inclined-plate clarifying basin top, Yi Jilian
It is connected to the second flocculation basin of the third conditioning tank, chelating alkali is added in the third conditioning tank, makes pH value of waste water therein
Control is 9-12, is added with PAC in second flocculation basin, to generate alumen ustum, second flocculation basin is connected to the micro-filtration
Film circulatory pool.
Further, the pH value of waste water control in the third conditioning tank is 9.5-10.5.
Further, Baxeer slot is equipped between the microfiltration membranes circulatory pool and the comprehensive wastewater collecting pit, described bar is had a rest
Heavy metal on-line computing model is equipped in your slot, to monitor the content of beary metal handled in waste water.
Further, the sludge-tank is connected to sludge pump, and the sludge pump is connected to filter press, the top of the filter press
It is connected to the second order reaction pond, the dry mud outward transport of filters pressing, filtrate is back to the second order reaction pond.
Further, the nickel-containing waste water collecting pit, the reaction of high order pond bottom be connected to blower, will be empty by blower
Gas is passed through in the nickel-containing waste water collecting pit and the reaction of high order pond.
The utility model has the beneficial effects that
Zinc-nickel waste water, which is sent by nickel-containing waste water collecting pit to reaction of high order pond, to react, and generates bulky grain flocculation not soluble in water
Object, and precipitated in inclined-plate clarifying basin, the supernatant effluent of precipitating enters second order reaction pond, and sediment is discharged into sludge-tank, supernatant
Waste water removes nickel by microfiltration membrane system in microfiltration membranes circulatory pool, handles waste water up to standard and enters comprehensive wastewater collecting pit.This is practical
Novel by repeatedly reacting, by the heavy metals removal in zinc-nickel waste water, making that treated, waste water reaches discharge standard, avoids
Pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model zinc-nickel waste water treatment system；
Fig. 2 is the process flow diagram of the utility model zinc-nickel waste water treatment system；
In figure, 1-nickel-containing waste water collecting pit, 2-elevator pumps, 3-reaction of high order ponds, the 31-the first conditioning tank, 32-are instead
Ying Chi, the 33-the second conditioning tank, the 34-the first flocculation basin, 4-inclined-plate clarifying basins, 5-second order reaction ponds, 51-thirds are adjusted
Pond, the 52-the second flocculation basin, 6-microfiltration membranes circulatory pools, 7-Baxeer slots, 71-heavy metal on-line computing models, 8-synthesis are useless
Water collecting pit, 9-sludge-tanks, 91-sludge pumps, 92-filter presses, 10-blowers, 11-concentrated acid wastewater collection ponds.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
Such as Fig. 1, the utility model, which provides a kind of zinc-nickel waste water treatment system, makes nickel suitable for the pretreatment of zinc-nickel waste water
Wastewater Pretreatment standardization, so that treated, waste water meets the requirement of GB21900-2008 electroplating sludge object discharge standard.
Such as Fig. 1 and Fig. 2, zinc-nickel waste water treatment system includes the nickel-containing waste water collecting pit 1 for collecting zinc-nickel waste water, is passed through
Nickel-containing waste water collecting pit 1 handles unified collect of the zinc-nickel waste water on electroplating assembly line, can save processing cost.It is nickeliferous
Wastewater collection pond 1 is connected to reaction of high order pond 3, and chelating alkali, heavy metal chelating agent, PAC and PAM are added in reaction of high order pond 3
Equal chemical agents, the entitled aluminium polychloride of PAC Chinese, the entitled polyacrylamide of PAM Chinese.Reaction of high order pond 3 is connected to inclined plate
Sedimentation basin 4,4 top of inclined-plate clarifying basin are connected to second order reaction pond 5, and lower part is connected to sludge-tank 9, and second order reaction pond 5 is connected to
Microfiltration membranes circulatory pool 6, microfiltration membranes circulatory pool 6 are connected to comprehensive wastewater collecting pit 8.Zinc-nickel waste water is sent by nickel-containing waste water collecting pit 1
It is reacted to reaction of high order pond 3, generates bulky grain flocculate not soluble in water, and precipitate in inclined-plate clarifying basin 4, it is upper after precipitating
Clear liquid waste water enters second order reaction pond 5, and sediment is discharged into sludge-tank 9, and supernatant effluent passes through micro-filtration in microfiltration membranes circulatory pool 6
Membranous system further removes nickel, handles waste water up to standard and enters comprehensive wastewater collecting pit 8.
Such as Fig. 1, elevator pump 2, the opening and closing of elevator pump 2 and flow are equipped between nickel-containing waste water collecting pit 1 and reaction of high order pond 3
It is automatically controlled system control, therefore zinc-nickel waste water passes through in elevator pump 2 automatic lifting to reaction of high order pond 3.Needed when use through
The often automatic work situation of observation elevator pump 2, pays attention to pump operation situation when observing turn on pump, in order to avoid idle running.Nickel-containing waste water is received
Collection pond 1, reaction of high order pond 3 bottom be connected with blower 10, air is passed through by nickel-containing waste water collecting pit 1 and multistage by blower 10
In reaction tank 3.
Such as Fig. 2, reaction of high order pond 3 includes sequentially connected first conditioning tank 31, reaction tank 32, the second conditioning tank 33 and the
One flocculation basin 34, the first conditioning tank 31 are connected to nickel-containing waste water collecting pit 1, are added with acidic materials in the first conditioning tank 31, make
Wherein pH value of waste water is less than 4.In the present embodiment, the first conditioning tank 31 is connected to concentrated acid wastewater collection pond 11, and concentrated acid waste water is received
Collecting in collection pond 11 has concentrated acid waste water, will be added in the first conditioning tank 31 after concentrated acid wastewater collection, to adjust the first conditioning tank 31
Interior pH value, controlling the pH value of waste water in the first conditioning tank 31 is 2-4, and the pH value of general initial zinc-nickel waste water is greater than 10, is needed
The pH value of waste water is adjusted using acidic materials, and uses industrial concentrated acid waste water, can save the use of pure acid.
Heavy metal chelating agent ingredient is sodium diethyldithiocarbamate (DDTC sodium salt) in reaction tank 32, and proportion is
25kgDDTC is dissolved into 1 ton of water, and when nickel content is 100mg/L or less in waste water, the DDTC sodium salt of 30-40L/ tons of addition is molten
Liquid, reaction principle are that DDTC adjusts pH9-10 in ammonia solution, and the heavy metals such as nickel, zinc, copper generate celadon complex compound, should
Celadon complex compound adds after flocculant after the meeting at precipitating, thus heavy metals removal.In the present embodiment, weight in reaction tank 32
It is 150-320L/H that metal, which captures agent flux,.
Added with chelating alkali in second conditioning tank 33, making wherein pH value of waste water control is 9-12, it is preferred that pH value adjusting is arrived
9-10 is best.It flocculates in first flocculation basin 34 added with PAC, PAM, control flocculation reaction has alumen ustum generation, that is, generates
Bulky grain flocculate not soluble in water.First flocculation basin 34 is connected to inclined-plate clarifying basin 4, by bulky grain flocculate by the first wadding
Solidifying pond 34 is sent to being precipitated in inclined-plate clarifying basin 4, and the supernatant effluent after precipitating enters second order reaction pond 5, heavy after precipitating
Starch is discharged into sludge-tank 9.Flocculate enters in inclined-plate clarifying basin 4 after precipitating, guarantees that top water quality is limpid, no mud scum.
Such as Fig. 1, sludge-tank 9 is connected to sludge pump 91, and sludge pump 91 is connected to filter press 92, the top connection of filter press 92
In second order reaction pond 5, the sludge in sludge-tank 9 is evacuated in filter press 92 by sludge pump 91 carries out filters pressing, the dry mud after filters pressing
Outward transport, filtrate, which is back in second order reaction pond 5, to be continued to react.
Such as Fig. 2, second order reaction pond 5 includes the third conditioning tank 51 for being connected to 4 top of inclined-plate clarifying basin, and is connected to the
Second flocculation basin 52 of three conditioning tanks 51, third conditioning tank 51 is interior added with chelating alkali, and making pH value of waste water control therein is 9-
12, it is preferred that it is best that pH value, which is adjusted to 9.5-10.5,.It flocculates in second flocculation basin 52 added with PAC, control flocculation is anti-
There should be alumen ustum generation.
Such as Fig. 1, the microfiltration membranes circulatory system is equipped in microfiltration membranes circulatory pool 6, by the microfiltration membranes circulatory system to waste water into one
Step removes total nickel.It is equipped with Baxeer slot 7 between microfiltration membranes circulatory pool 6 and comprehensive wastewater collecting pit 8, is equipped with weight in Baxeer slot 7
Metal on-line computing model 71 reaches discharge standard heel row to content of beary metal to monitor the content of beary metal handled in waste water
It puts into comprehensive wastewater collecting pit 8.
The utility model is removed using chemical agents such as chelating alkali, heavy metal chelating agent, PAC and PAM by reaction of high order
The heavy metals such as nickel, zinc, the copper in waste water are removed, waste water reaches discharge standard so that treated, avoids polluting.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment pair
The utility model is described in detail, it will be appreciated by those skilled in the art that can to the technical solution of the utility model into
Row, which is modified, or equivalent replacement is without departing from the objective and range of the technical program should all cover the power in the utility model
In sharp claimed range.
Claims (9)
1. a kind of zinc-nickel waste water treatment system characterized by comprising for collecting the nickel-containing waste water collecting pit of zinc-nickel waste water,
The nickel-containing waste water collecting pit is connected to reaction of high order pond, in the reaction of high order pond added with chelating alkali, heavy metal chelating agent,
Aluminium polychloride and polyacrylamide, the reaction of high order pond are connected to inclined-plate clarifying basin, the inclined-plate clarifying basin top connection
In second order reaction pond, lower part is connected to sludge-tank, and the second order reaction pond is connected to microfiltration membranes circulatory pool, the microfiltration membranes circulation
Pond is connected to comprehensive wastewater collecting pit.
2. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: the nickel-containing waste water collecting pit with it is described
Elevator pump is equipped between reaction of high order pond, the opening and closing of the elevator pump and flow are automatically controlled system control.
3. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: the reaction of high order pond includes successively phase
The first conditioning tank, reaction tank, the second conditioning tank and the first flocculation basin even, first conditioning tank are connected to the nickel-containing waste water
Collecting pit is added with acidic materials in first conditioning tank, makes wherein that pH value of waste water is less than 4, addition weight in the reaction tank
Metal agent for capturing is added with chelating alkali, makes wherein pH value of waste water control to remove the heavy metal in waste water in second conditioning tank
It is made as 9-12, is added with aluminium polychloride, polyacrylamide in first flocculation basin, to generate alumen ustum, first flocculation
Pond is connected to the inclined-plate clarifying basin.
4. zinc-nickel waste water treatment system according to claim 3, it is characterised in that: first conditioning tank is connected to concentrated acid
Wastewater collection pond, interior collect of the concentrated acid wastewater collection pond have concentrated acid waste water, and first conditioning tank is added in the concentrated acid waste water
Interior, to adjust the pH value of wherein waste water, the pH value control of waste water is 2-4 in first conditioning tank.
5. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: the second order reaction pond includes being connected to
The third conditioning tank on the inclined-plate clarifying basin top, and it is connected to the second flocculation basin of the third conditioning tank, the third
Added with chelating alkali in conditioning tank, making pH value of waste water control therein is 9-12, is added with PAC in second flocculation basin, with
Alumen ustum is generated, second flocculation basin is connected to the microfiltration membranes circulatory pool.
6. zinc-nickel waste water treatment system according to claim 5, it is characterised in that: the wastewater pH in the third conditioning tank
Value control is 9.5-10.5.
7. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: the microfiltration membranes circulatory pool with it is described comprehensive
It closes and is equipped with Baxeer slot between wastewater collection pond, be equipped with heavy metal on-line computing model in the Baxeer slot, handled with monitoring
Content of beary metal in waste water.
8. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: the sludge-tank is connected to sludge pump,
The sludge pump is connected to filter press, and the top of the filter press is connected to the second order reaction pond, the dry mud outward transport of filters pressing, filter
Liquid is back to the second order reaction pond.
9. zinc-nickel waste water treatment system according to claim 1, it is characterised in that: it is the nickel-containing waste water collecting pit, described
The bottom in reaction of high order pond is connected to blower, and air is passed through the nickel-containing waste water collecting pit and the reaction of high order by blower
Chi Zhong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317225.3U CN208667309U (en) | 2018-03-08 | 2018-03-08 | Zinc-nickel waste water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317225.3U CN208667309U (en) | 2018-03-08 | 2018-03-08 | Zinc-nickel waste water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208667309U true CN208667309U (en) | 2019-03-29 |
Family
ID=65820921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820317225.3U Expired - Fee Related CN208667309U (en) | 2018-03-08 | 2018-03-08 | Zinc-nickel waste water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208667309U (en) |
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2018
- 2018-03-08 CN CN201820317225.3U patent/CN208667309U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20210308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |