CN207031122U - A kind of papermaking wastewater treatment system - Google Patents
A kind of papermaking wastewater treatment system Download PDFInfo
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- CN207031122U CN207031122U CN201720498176.3U CN201720498176U CN207031122U CN 207031122 U CN207031122 U CN 207031122U CN 201720498176 U CN201720498176 U CN 201720498176U CN 207031122 U CN207031122 U CN 207031122U
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- wastewater treatment
- water
- sludge
- papermaking wastewater
- purification agent
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Abstract
The utility model discloses a kind of papermaking wastewater treatment system, the system includes the concentrated water pH value regulating reservoir being sequentially connected with, water purification agent special purpose reactor, dissolved air flotation machine, shallow-layer filter, activated carbon ozone reactor, gravity valveless filter and sludge-tank, one-level elevator pump is provided between the concentrated water pH value regulating reservoir and water purification agent special purpose reactor, two-stage hoisting pump is provided between the dissolved air flotation machine and shallow-layer filter, and dissolved air flotation machine, shallow-layer filter is also connected with sludge-tank, the system can be effectively by the discharge standard of pulping wastewater treatment to national regulation, and being capable of most of reuse, fraction discharges.
Description
Technical field
The utility model belongs to pulping wastewater treatment field, and in particular to a kind of papermaking wastewater treatment system.
Background technology
The first place of China's paper-making industrial waste water discharge capacity and COD discharge capacity Jun Ju China all types of industries discharge capacity, paper maker
Pollution of the industry to water environment is the most serious, it not still China's industrial pollution caused by paper manufacturing preventing and treating matter of utmost importance, and the whole nation industry
Waste water carries out the matter of utmost importance of processing and water saving up to standard.Paper waste how is eliminated to pollute and obtain the precious resources in waste liquid
Using being a job with great social effect and economic value, should attach great importance to.With expanding economy, China's day
Benefit faces the problem of shortage of fresh water, scarcity of raw material, and on the other hand, water pollution is also increasingly severe.In recent years, through multi-party
Unremitting effort, paper industry water prevention and cure of pollution have been achieved for certain achievement, although paper and paperboard production increase year by year,
COD in waste discharge is but reduced year by year.But at present paper industry account for total emission volumn 50% waste water not yet carry out it is up to standard
Handle, recycling is even more few after pulping wastewater treatment, and therefore, paper waste prevention and cure of pollution and recycling are appointed
Business is arduous.
Papermaking wastewater treatment system of the prior art exist concentrated water can not advanced treating and directly dense discharge the problem of, no
Meet the most stringent of discharge standard of country, effect on environment is bigger, therefore urgent need one kind can be to papermaking concentrated water advanced treating
System be difficult to reach after the concentrated water of biochemical degradation is further processed the most stringent of row of country to highly concentrated high salt etc.
The standard of putting is discharged or reuse.
Utility model content
The problem of for presently, there are, the utility model provide a kind of new papermaking wastewater treatment system, and the system can
Effectively by the discharge standard of pulping wastewater treatment to national regulation, and can most of reuse, fraction discharge.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of papermaking wastewater treatment system, concentrated water pH value regulating reservoir, the water purification agent that the system includes being sequentially connected with are special
Reactor, dissolved air flotation machine, shallow-layer filter, activated carbon ozone reactor (GAC reactors), gravity valveless filter and sludge
Pond, is provided with one-level elevator pump between the concentrated water pH value regulating reservoir and water purification agent special purpose reactor, the dissolved air flotation machine and shallow
Two-stage hoisting pump is provided between layer filter, and dissolved air flotation machine, shallow-layer filter are also connected with sludge-tank.
Further, the system also includes alkali adding apparatus, and the alkali adding apparatus is connected with concentrated water pH value regulating reservoir.
The wherein used optional NaOH of alkali, NaOH is dissolved in advance during use, certain density NaOH solution is formed, according to institute
The pH value to be reached requires to add appropriate NaOH solution.
In above-mentioned papermaking wastewater treatment system, water purification agent can be manually added, and can also be automatically added to by system, automatically
Papermaking wastewater treatment system also includes water purification agent adding apparatus during addition, and the water purification agent adding apparatus should with water purification agent Special reverse
Device connects.Also include PAC adding apparatus, the PAC adding apparatus is also connected with water purification agent special purpose reactor.
In above-mentioned papermaking wastewater treatment system, in addition to PAM adding apparatus, the PAM adding apparatus and dissolved air flotation machine
It is connected.
Further, the system also includes ozone generator, the ozone generator and activated carbon ozone reactor
Connection.
Preferably, the system also includes waste water recycling system and the sludge treating system at raw sewage station, the waste water
Reutilization system is connected with gravity valveless filter, and the sludge treating system at raw sewage station is connected with sludge-tank.
Water purification agent special purpose reactor of the present invention, by adding proper amount of water purification agent, to being reconciled by pH value
Concentrated water handled.
Air floatation machine：Concentrated water is after dosing is reacted, and into air floatation machine, the micro-bubble of high degree of dispersion is attached to suspended particle
It is upper to realize separation of solid and liquid using law of buoyancy.And set shallow-layer to filter, the SS into rear class GAC reactors is reduced as far as possible, is prevented
The alluvial sludge blockage of equipment.
Shallow-layer filter：Formed by several filter element parallel combinations.It is filtered when system is in filtration condition
Water packing layer in filter (refined quartz sand/stone is passed through with laminar condition by the water-locator water distribution uniformity of uniqueness, water
Garnet).When water flows through packing layer, impurity is trapped within packing layer.Filter bottom has multiple equally distributed water collectors,
Water after filtering is equably collected and drawn, advection filtering, filter can be made to be filtered under high flow rate, still can reach preferably
The effect of filtering.
As impurity is constantly built up in packing layer, internal loss in head will constantly increase.When water-in and water-out loss in head reaches
During to setting value, automatic activation constant pressure arrangement is made it change to backwash state by system, and when this backwash terminates, fluid-valve changes
By platform backwash, it is more convenient for cleaning the impurity being accumulated so as to realize in feedwater direction.
When single tank body is in backwash state, other tank body filterings continue to.Cleaning water section after filtering is used for
Backwash standard block sand cylinder, remaining is still sent at user.Backwashing sewage water is then discharged by the backwash discharge outlet of fluid-valve.
In high speed sand cylinder high-efficiency filtration systems, filler is mutually washed by rubbing with the hands between the design of special water collector can make filler, is carried to greatest extent
Height backwash efficiency, reduces required backwash water (clean water), while material phenomenon is not run during backwash.One standard block sand cylinder
Backwash is 23 minutes, and backwash terminates, and standard block sand cylinder interior loss in head is reduced to zone of reasonableness, and constant pressure arrangement provides
Release signal, fluid-valve return to filtration condition, and next standard block sand cylinder is then prepared to enter into backwash state.
Gravity valveless filter：Enter gravity valveless filter by the sewage of GAC advanced oxidations and carry out physical filtering, protect
Latter end SS removal is demonstrate,proved, is discharged after up to standard.
Gravity valveless filter is that one kind carries out fast filtering using quartz sand or anthracite, ore equigranular filtrate to sewage
And reaches the purpose of suspended solid and part bacterium, microorganism in trap water equipment.This filter with the water of itself clear water zone,
Backwashed under suction head effect, therefore without recoil pump must be set as other filters.
The beneficial effects of the utility model are：
The utility model uses the addition water purification agent before advection air supporting to be handled, and effectively can remove in waste water
Organic matter, then it is handled successively using air supporting+shallow-layer filtering+GAC advanced oxidations+valveless water filter device, finally can
Reach water outlet COD≤50mg/L, BOD≤10, SS≤10mg/L, ammonia nitrogen≤5mg/L.The system can be effectively by paper waste
Handle the discharge standard of national regulation, and can most of reuse, fraction discharge.
Brief description of the drawings
Fig. 1 is the utility model papermaking wastewater treatment system block diagram.
Embodiment
Specific embodiment of the utility model is more fully described below with reference to accompanying drawings.Although this reality is shown in accompanying drawing
With new specific embodiment, it being understood, however, that may be realized in various forms the utility model without that should be illustrated here
Embodiment limited.Conversely, there is provided these embodiments are to be able to be best understood from the utility model, and can incite somebody to action
The scope of the utility model is completely communicated to those skilled in the art.
"comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should
It is construed to " include but be not limited to ".Specification subsequent descriptions are so described to retouch to implement better embodiment of the present utility model
It is for the purpose of the rule of specification to state, and is not limited to the scope of the utility model.Protection model of the present utility model
Enclose to work as and be defined depending on appended claims institute defender.
A kind of papermaking wastewater treatment system, concentrated water pH value regulating reservoir, the water purification agent that the system includes being sequentially connected with are special
Reactor, dissolved air flotation machine, shallow-layer filter, activated carbon-ozone reactor, gravity valveless filter and sludge-tank are described dense
Be provided with one-level elevator pump between water pH value regulating reservoir and water purification agent special purpose reactor, the dissolved air flotation machine and shallow-layer filter it
Between be provided with two-stage hoisting pump, and dissolved air flotation machine, shallow-layer filter are also connected with sludge-tank.
The system also includes alkali adding apparatus, water purification agent adding apparatus, PAC adding apparatus, PAM adding apparatus, ozone
Generator, the alkali adding apparatus are connected with concentrated water pH value regulating reservoir, the water purification agent adding apparatus and PAC adding apparatus with
Water purification agent special purpose reactor connects, and the PAM adding apparatus is connected with dissolved air flotation machine, and the ozone generator and activated carbon-
Ozone reactor connects.
Further, the system also includes waste water recycling system and the sludge treating system at raw sewage station, described
Waste water recycling system is connected with gravity valveless filter, and the sludge treating system at raw sewage station is connected with sludge-tank.
The concrete processing procedure of the utility model paper waste is as follows：
Papermaking concentrated water to be processed will be needed to introduce concentrated water pH value regulating reservoir, then add certain density aqueous slkali to concentrated water
PH values be adjusted, then concentrated water is pumped into water purification agent special purpose reactor by one-level elevator pump, at the same time, water purification agent
The PAC in water purification agent and PAC adding apparatus in adding apparatus will be added in water purification agent special purpose reactor according to being actually needed
Reaction treatment is carried out to concentrated water, subsequently into dissolved air flotation machine, at the same time, the PAM in PAM adding apparatus is added to air supporting point
Separation of solid and liquid is tentatively carried out in disembarking, the solid separated enters sludge-tank, and liquid goes successively to shallow by two-stage hoisting pump
Layer filter carries out physical filtering, and the solid equally separated enters sludge-tank, and liquid goes successively to activated carbon ozone reaction
Device carries out oxidation reaction, and the chain reaction of ozone decomposed is excited using granular activated carbon surface functional group, promotes ozone oxidation water
Middle organic matter reaches the purpose of organics removal, and the water after oxidation goes successively to gravity valveless filter and carries out physical filtering, protects
Demonstrate,prove latter end SS removal, it is up to standard after re-used and (to paper machine room wet dedusting, done into waste water recycling system
Public living area is flushed the toilet, road sprays etc.), the sludge treating system progress that waste water not up to standard goes successively to raw sewage station is next
The processing of wheel.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, similarly it is included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of papermaking wastewater treatment system, it is characterised in that concentrated water pH value regulating reservoir that the system includes being sequentially connected with, net
Aqua special purpose reactor, dissolved air flotation machine, shallow-layer filter, activated carbon ozone reactor, gravity valveless filter and sludge-tank,
One-level elevator pump, the dissolved air flotation machine and shallow-layer mistake are provided between the concentrated water pH value regulating reservoir and water purification agent special purpose reactor
Two-stage hoisting pump is provided between filter, and dissolved air flotation machine, shallow-layer filter are also connected with sludge-tank.
2. papermaking wastewater treatment system according to claim 1, it is characterised in that the system also includes alkali and adds dress
Put, the alkali adding apparatus is connected with concentrated water pH value regulating reservoir.
3. papermaking wastewater treatment system according to claim 1, it is characterised in that the system also includes water purification agent and added
Device and PAC adding apparatus, the water purification agent adding apparatus and PAC adding apparatus are connected with water purification agent special purpose reactor.
4. papermaking wastewater treatment system according to claim 1, it is characterised in that the system also includes PAM and adds dress
Put, the PAM adding apparatus is connected with dissolved air flotation machine.
5. papermaking wastewater treatment system according to claim 1, it is characterised in that the system also includes ozone
Device, the ozone generator are connected with activated carbon-ozone reactor.
6. papermaking wastewater treatment system according to claim 1, it is characterised in that the system also includes waste water reuse
System and the sludge treating system at raw sewage station, the waste water recycling system are connected with gravity valveless filter, raw sewage station
Sludge treating system be connected with sludge-tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720498176.3U CN207031122U (en) | 2017-05-06 | 2017-05-06 | A kind of papermaking wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720498176.3U CN207031122U (en) | 2017-05-06 | 2017-05-06 | A kind of papermaking wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207031122U true CN207031122U (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720498176.3U Active CN207031122U (en) | 2017-05-06 | 2017-05-06 | A kind of papermaking wastewater treatment system |
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| Country | Link |
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| CN (1) | CN207031122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904770A (en) * | 2017-05-06 | 2017-06-30 | 湖南恒安生活用纸有限公司 | A kind of papermaking wastewater treatment system and handling process |
-
2017
- 2017-05-06 CN CN201720498176.3U patent/CN207031122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904770A (en) * | 2017-05-06 | 2017-06-30 | 湖南恒安生活用纸有限公司 | A kind of papermaking wastewater treatment system and handling process |
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