CN109650629A - A kind of zero-discharge treatment process for industrial wastewater and processing system - Google Patents
A kind of zero-discharge treatment process for industrial wastewater and processing system Download PDFInfo
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- CN109650629A CN109650629A CN201910052572.7A CN201910052572A CN109650629A CN 109650629 A CN109650629 A CN 109650629A CN 201910052572 A CN201910052572 A CN 201910052572A CN 109650629 A CN109650629 A CN 109650629A
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- industrial wastewater
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- 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
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Abstract
The invention discloses a kind of zero-discharge treatment process for industrial wastewater, comprise the following steps :(a) pH value adjustment, aeration process；(b) flocculation, filters pressing process；(c) ultra-filtration and separation process；(d) RO UF membrane process (e) crystallizes condensation procedure；Entire technique, by adding flocculant, promotes precipitation by metallic ion compared with traditional handicraft, filtering, three times UF membrane and evaporative crystallization are passed sequentially through again, complete dehydration can be formed to sediment and mud, really realize zero-emission, obtained water purification can be recycled directly；The invention also discloses a kind of zero discharge of industrial waste water processing systems, compared with conventional treatment systems, excessive reaction tank and sedimentation basin are reduced or remitted, it greatly reduced occupied area, it, can be according to demand in use process, with stopping with opening, it is very convenient, while the mode of multistage filtering, it can guarantee the service life and filter efficiency of RO seperator well.
Description
Technical field
The present invention relates to a kind of zero-discharge treatment process for industrial wastewater and processing systems, belong to environment protection field.
Background technique
Industrial wastewater by it could be discharged after production waste water is handled, and is primarily due in waste water containing a large amount of
The harmful substances such as metal ion, suspended matter, these substances are bound to cause very serious pollution problem once flowing into rivers,
And traditional treatment process and processing system be there is also certain drawbacks, there is still a need for improve and solve for these drawbacks.
Summary of the invention
(1) technical problems to be solved
To solve the above problems, the invention proposes a kind of zero-discharge treatment process for industrial wastewater and processing systems.
(2) technical solution
The invention discloses a kind of zero-discharge treatment process for industrial wastewater, include the following steps process :(a) pH value adjustment, aeration
Process: industrial wastewater enters reaction tank and carries out pH value adjustment, synchronizes and is aerated；(b) flocculation, filters pressing process: by step (a) place
The industrial wastewater managed flocculated, filters pressing；(c) ultra-filtration and separation process: the transparent liquid that step (b) is obtained carries out UF membrane；
(d) RO UF membrane process: the clear liquid obtained after step (c) filtering is separated and is concentrated；(e) it crystallizes condensation procedure: will walk
Suddenly concentrated water obtained in (d) is evaporated, crystallizes and condenses, and obtains dry mud and vapor, and wherein it is cold to introduce cooling cylinder for vapor
Clear water tanks are recycled to after solidifying.
Further, the mode of operation of the step (a) is: the PH of industrial wastewater being adjusted to metal ion and is easy flocculation
Value, which is 8-11, synchronous to be aerated using supercharging air mode to industrial wastewater.
Further, the mode of operation of the step (b) is: be added in step (a) treated industrial wastewater PAM or
PAC flocculant obtains solid-liquid mixed solution, by filters pressing mixed solution, obtains wet mud and transparent liquid, the transparent liquid is as postorder
The water inlet for the treatment of process.
Further, the mode of operation of the step (c) is: the transparent liquid that step (b) is obtained carries out UF membrane, obtains
First concentrated water and clear water, wherein the first concentrated water return step (b) is handled again.
Further, the mode of operation of the step (d) is: the clear water that step (c) is obtained carries out RO UF membrane twice,
The first water purification and the second concentrated water being discharged as final process are obtained after first time RO UF membrane, the second concentrated water passes through second of RO
The second water purification and third concentrated water being discharged as final process are obtained after UF membrane.
Further, the mode of operation of the step (e) is: the third concentrated water that step (d) obtains is evaporated crystallization,
Dry mud and vapor are obtained, obtains the third water purification being discharged as final process after vapor condensation.
The invention discloses a kind of zero discharge of industrial waste water processing systems, comprising: reaction tank, supercharger, rotary press filter,
Backwash membrane separator, two RO membrane separators, evaporative crystallization all-in-one machine, cooling cylinder, control valve, water-supply-pipe, recycling water purification
Case, wet mud collection device, dry mud collection device；In the supercharger installation and biochemical reaction tank.
Further, the rotary press filter, backwash membrane separator, two RO membrane separators and evaporative crystallization all-in-one machine
Water inlet end is equipped with a header tank；Each header tank water outlet is equipped with an elevator pump.
(3) beneficial effect
The present invention it has the advantages that
A kind of zero-discharge treatment process for industrial wastewater of the invention and processing system, entire technique pass through compared with traditional handicraft
Add flocculant, promote precipitation by metallic ion, then pass sequentially through filtering, three times UF membrane and evaporative crystallization, can to sediment with
Mud forms complete dehydration, really realizes zero-emission, and obtained water purification can be recycled directly；Processing system and conventional process system
System is compared, and excessive reaction tank and sedimentation basin have been reduced or remitted, and greatly reduced occupied area, in use process, can according to demand, with
Stop with opening, it is very convenient, while the mode of multistage filtering, it can guarantee the service life and filter efficiency of RO seperator well.
Detailed description of the invention
Fig. 1 is processing technological flow figure of the invention.
Fig. 2 is processing system flow chart of the invention.
Specific embodiment
As shown in Figure 1, a kind of zero-discharge treatment process for industrial wastewater, includes the following steps process :(a) pH value adjustment exposes
Gas process: industrial wastewater enters reaction tank and carries out pH value adjustment, synchronizes and is aerated；(b) flocculation, filters pressing process: by step (a)
Processed industrial wastewater flocculated, filters pressing；(c) ultra-filtration and separation process: the transparent liquid that step (b) is obtained carries out film point
From；(d) RO UF membrane process: the clear liquid obtained after step (c) filtering is separated and is concentrated；(e) condensation procedure is crystallized: will
Concentrated water obtained in step (d) is evaporated, crystallizes and condenses, and obtains dry mud and vapor, and wherein vapor introduces cooling cylinder
Clear water tanks are recycled to after condensation.
Preferably, the mode of operation of the step (a) is: the PH of industrial wastewater being adjusted to metal ion and is easy flocculation
Value, which is 8-11, synchronous to be aerated using supercharging air mode to industrial wastewater.
Preferably, the mode of operation of the step (b) is: be added in step (a) treated industrial wastewater PAM or
PAC flocculant obtains solid-liquid mixed solution, by filters pressing mixed solution, obtains wet mud and transparent liquid, the transparent liquid is as postorder
The water inlet for the treatment of process.
Preferably, the mode of operation of the step (c) is: the transparent liquid that step (b) is obtained carries out UF membrane, obtains the
One concentrated water and clear water, wherein the first concentrated water return step (b) is handled again.
Preferably, the mode of operation of the step (d) is: the clear water that step (c) is obtained carries out RO UF membrane twice, the
The first water purification and the second concentrated water being discharged as final process are obtained after RO UF membrane, the second concentrated water passes through second of RO film
The second water purification and third concentrated water being discharged as final process are obtained after separation.
Preferably, the mode of operation of the step (e) is: the third concentrated water that step (d) obtains being evaporated crystallization, is obtained
To dry mud and vapor, the third water purification being discharged as final process is obtained after vapor condensation.
As shown in Fig. 2, a kind of zero discharge of industrial waste water processing system, comprising: reaction tank, supercharger, rotary press filter, anti-
Rinse membrane separator, two RO membrane separators, evaporative crystallization all-in-one machine, cooling cylinder, control valve, water-supply-pipe, recycling clear water tanks,
Wet mud collection device, dry mud collection device；In the supercharger installation and biochemical reaction tank.
Preferably, the rotary press filter, backwash membrane separator, two RO membrane separators and evaporative crystallization all-in-one machine into
Water end (W.E.) is equipped with a header tank；Each header tank water outlet is equipped with an elevator pump.
A kind of zero-discharge treatment process for industrial wastewater of the invention and processing system, entire technique compared with traditional handicraft,
By addition flocculant, promote precipitation by metallic ion, then pass sequentially through filtering, three times UF membrane and evaporative crystallization, it can be to precipitating
Object and mud form complete dehydration, really realize zero-emission, and obtained water purification can be recycled directly；At processing system and tradition
Reason system is compared, and excessive reaction tank and sedimentation basin have been reduced or remitted, and greatly reduced occupied area, can be according to need in use process
It asks, it is very convenient with stopping with opening, while the mode of multistage filtering, it can guarantee the service life and filtering of RO seperator well
Efficiency.
It should be appreciated that exemplary embodiment as described herein is illustrative and be not restrictive；Although being retouched in conjunction with attached drawing
The embodiment of the present invention is stated, it should be understood by one skilled in the art that not departing from by as defined in the appended claims
The spirit and scope of the present invention in the case where, the change of various forms and details can be made.
Claims (8)
1. a kind of zero-discharge treatment process for industrial wastewater, includes the following steps process :(a) pH value adjustment, aeration process: Industry Waste
Water enters reaction tank and carries out pH value adjustment, synchronizes and is aerated；(b) flocculation, filters pressing process: by the processed industry of step (a)
Waste water flocculated, filters pressing；(c) ultra-filtration and separation process: the transparent liquid that step (b) is obtained carries out UF membrane；(d) RO UF membrane
Process: the clear liquid obtained after step (c) filtering is separated and is concentrated；(e) it crystallizes condensation procedure: will be obtained in step (d)
Concentrated water be evaporated, crystallize and condense, obtain dry mud and vapor, wherein vapor introduce cooling cylinder condensation after be recycled to
Clear water tanks.
2. a kind of zero-discharge treatment process for industrial wastewater according to claim 1, it is characterised in that: the step (a)
Mode of operation is: the PH of industrial wastewater being adjusted to metal ion and is easy flocculation value, which is 8-11, and synchronization is increased using air
Pressure mode is aerated industrial wastewater.
3. a kind of zero-discharge treatment process for industrial wastewater according to claim 1, it is characterised in that: the step (b)
Mode of operation is: PAM or PAC flocculant being added in step (a) treated industrial wastewater, obtains solid-liquid mixed solution, leads to
Filters pressing mixed solution is crossed, wet mud and transparent liquid are obtained, water inlet of the transparent liquid as postorder treatment process.
4. a kind of zero-discharge treatment process for industrial wastewater according to claim 1, it is characterised in that: the step (c)
Mode of operation is: the transparent liquid that step (b) is obtained carries out UF membrane, the first concentrated water and clear water is obtained, wherein the first concentrated water is returned
Step (b) is returned to handle again.
5. a kind of zero-discharge treatment process for industrial wastewater according to claim 1, it is characterised in that: the step (d)
Mode of operation is: the clear water that step (c) is obtained carries out RO UF membrane twice, is obtained after first time RO UF membrane as final place
The first water purification and the second concentrated water of water outlet are managed, the second concentrated water is obtained after second of RO UF membrane as final process water outlet
Second water purification and third concentrated water.
6. a kind of zero-discharge treatment process for industrial wastewater according to claim 1, it is characterised in that: the step (e)
Mode of operation is: the third concentrated water that step (d) obtains being evaporated crystallization, dry mud and vapor are obtained, after vapor condensation
Obtain the third water purification being discharged as final process.
7. a kind of processing system for realizing zero-discharge treatment process for industrial wastewater described in any one of claim 1 to 6,
It is characterized in that: including: reaction tank, supercharger, rotary press filter, backwash membrane separator, two RO membrane separators, evaporative crystallizations
All-in-one machine, cooling cylinder, control valve, water-supply-pipe, recycling clear water tanks, wet mud collection device, dry mud collection device；The supercharger
In installation and biochemical reaction tank.
8. a kind of zero discharge of industrial waste water processing system according to claim 7, it is characterised in that: the rotary pressure filtration
Machine, backwash membrane separator, two RO membrane separators and evaporative crystallization all-in-one machine water inlet end are equipped with a header tank；It is described every
A header tank water outlet is equipped with an elevator pump.
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| CN201910052572.7A CN109650629A (en) | 2019-01-21 | 2019-01-21 | A kind of zero-discharge treatment process for industrial wastewater and processing system |
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| CN201910052572.7A CN109650629A (en) | 2019-01-21 | 2019-01-21 | A kind of zero-discharge treatment process for industrial wastewater and processing system |
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| CN106630360A (en) * | 2017-03-01 | 2017-05-10 | 苏州澄江环境科技有限公司 | Treatment system of surface treatment wastewater and use method thereof |
| CN107055904A (en) * | 2017-04-18 | 2017-08-18 | 江苏京源环保股份有限公司 | A kind of industrial tail end wastewater zero-discharge treatment system and technique |
| CN206666313U (en) * | 2017-04-07 | 2017-11-24 | 成都诚汇节能环保科技有限公司 | A kind of desulfurization wastewater zero-discharge treatment system |
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2019
- 2019-01-21 CN CN201910052572.7A patent/CN109650629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315910A (en) * | 2015-07-06 | 2017-01-11 | 江苏金门能源装备有限公司 | Method for treating waste water of titanium dioxide |
| CN106565045A (en) * | 2015-10-10 | 2017-04-19 | 麦王环境技术股份有限公司 | Complete equipment for stainless steel pickling wastewater treatment and resource recycling and treatment process |
| CN106517569A (en) * | 2016-05-17 | 2017-03-22 | 山东百川集大环境工程有限公司 | Zero discharge treatment process for desulfurization wastewater |
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Application publication date: 20190419 |