CN105903460A - Powdered activated carbon ectopic self generation and regeneration method for hard-degradation organic wastewater treatment - Google Patents
Powdered activated carbon ectopic self generation and regeneration method for hard-degradation organic wastewater treatment Download PDFInfo
- Publication number
- CN105903460A CN105903460A CN201610301952.6A CN201610301952A CN105903460A CN 105903460 A CN105903460 A CN 105903460A CN 201610301952 A CN201610301952 A CN 201610301952A CN 105903460 A CN105903460 A CN 105903460A
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- Prior art keywords
- activated carbon
- powdered activated
- spontaneous
- solid
- organic wastewater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention relates to a powdered activated carbon ectopic self generation and regeneration method for hard-degradation organic wastewater treatment. The powdered activated carbon ectopic self generation and regeneration method comprises the following steps of injecting hard-degradation organic wastewater into an adsorbing device, adding powdered activated carbon into the adsorbing device, stirring, and enabling the powdered activated carbon to adsorb hard-degradation organic matters in the hard-degradation organic wastewater; performing solid and liquid separation on the adsorbed solid and liquid-phase product, draining wastewater, and collecting solids; mixing the collected solids and hydrogen peroxide solution in an activated carbon self generation-regeneration reactor, increasing the temperature to 200-250 DEG C under the sealing condition, and stirring to react for 6-8h; after the reaction is finished, performing solid and liquid separation on a solid and liquid-phase reaction liquid, and recycling the obtained solid. The powdered activated carbon ectopic self generation and regeneration method has the advantages that the hard-degradation organic wastewater can be treated, the ectopic self generation and regeneration of activated carbon powdered is realized, and the recycling of the powdered activated carbon is realized.
Description
Technical field
The invention belongs to the technical field of Industrial Wastewater Treatment, the powder particularly relating to the process of a kind of organic wastewater with difficult degradation thereby is lived
Property charcoal dystopy is spontaneous and renovation process.
Background technology
The industrial wastewaters such as printing and dyeing, chemical industry, pharmacy are difficult it is known that current engineering circles starts to apply ozone, Fenton contour
The technology of level oxidation, utilizes its strong oxidizing property a part of organic biodegradability simultaneously improving waste water in removing waste water,
Follow-up employing is carried out a biological disposal upon, to improve organic removal efficiency in waste water；Or ozone, Fenton etc. are used for secondary biochemical go out
The advanced treating of water, is difficult to the Organic substance of biochemical degradation with further removal.But in actual applications, many industrial wastewaters by
Complicated in the organic material component contained, use above-mentioned high-level oxidation technology to be the most also difficult to obtain good effect.Analyze theoretically,
Refractory organic industrial sewage higher for this kind of intractability, can only use the higher wet oxidation of oxidation efficiency, surpass and face
The methods such as boundary's oxidation, but this kind of method is owing to equipment operation is complicated, be difficult to the high restriction of big-and-middle-sizedization, investment and operating cost
Sexual factor, it is difficult to push engineering practice to.Active carbon adsorption technology is to remove the effective technology that useless Organic substance in water is generally acknowledged, for
In waste water, hardly degraded organic substance is removed and is had a good broad spectrum activity, but it is costly maximum in its application for adsorbing saturated and regeneration
Obstacle.
Summary of the invention
The technical problem to be solved be to provide a kind of organic wastewater with difficult degradation thereby process Powdered Activated Carbon dystopy spontaneous and
Renovation process, it is possible to organic wastewater with difficult degradation thereby is processed, it is achieved the dystopy of Powdered Activated Carbon is spontaneous and regenerates, it is achieved powder
Recycling of end activated carbon.
The technical solution adopted for the present invention to solve the technical problems is to provide the powder of a kind of organic wastewater with difficult degradation thereby process and lives
Property charcoal dystopy is spontaneous and renovation process, comprises the following steps:
(1) organic wastewater with difficult degradation thereby is injected in adsorbent equipment, in adsorbent equipment, add Powdered Activated Carbon and stir, powder
Hardly degraded organic substance in organic wastewater with difficult degradation thereby is adsorbed by end activated carbon；
(2) the biphase product of solid-liquid completing absorption is carried out solid-liquid separation, discharge waste water, collect solid；
(3) in the spontaneous regeneration reactor of activated carbon, the solid collected is mixed with hydrogenperoxide steam generator, airtight condition
Under be warming up to 200～250 DEG C, stirring reaction 6～8h；
(4), after reaction terminates, solid-liquid two phase reaction liquid carries out solid-liquid separation, and the solid obtained carries out the circulation of step (1)
Utilize.
As one of the present invention preferred embodiment, the Powdered Activated Carbon in described step (1) uses wet method to add.
As another preferred embodiment of the present invention, the solid of described collection passes through to work before mixing with hydrogenperoxide steam generator
The property spontaneous regeneration reactor of charcoal adds water and makes the molten slurry of Powdered Activated Carbon.
As another preferred embodiment of the present invention, described solid-liquid separation uses dewaterer to be dehydrated.
As another preferred embodiment of the present invention, described adsorbent equipment is attached to agitator.
As another preferred embodiment of the present invention, the spontaneous regeneration reactor of described activated carbon be attached to agitator and
Heater.
As another preferred embodiment of the present invention, the mass concentration of described hydrogenperoxide steam generator is 30%, and throwing amount is
3.0～5.0mL/ (L waste water).
Beneficial effect
The present invention first passes through Powdered Activated Carbon and adsorbs the hardly degraded organic substance in organic wastewater with difficult degradation thereby, thus realize right
The process of organic wastewater with difficult degradation thereby, the more biphase waste water of solid-liquid after absorption is carried out processed, gained liquid can directly be arranged
Putting, gained solid joins in the spontaneous regeneration reactor of activated carbon and carries out spontaneous and regenerative response, by adding peroxidating
Hydrogen solution, and airtight, heat up, stir under conditions of, by the internal hydrogen peroxide of the spontaneous regeneration reactor of activated carbon
Wet oxidation and the dual function of hydro-thermal carbonization, it is achieved Powdered Activated Carbon spontaneous and regeneration, the biphase product of reacted solid-liquid
Thing is the spontaneous and Powdered Activated Carbon of regeneration by the solid of processed gained such that it is able to be circulated use, favorably
In reducing the cost that organic wastewater with difficult degradation thereby processes.
Accompanying drawing explanation
Fig. 1 is the flow chart that Powdered Activated Carbon dystopy of the present invention is spontaneous and regenerates.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments be merely to illustrate the present invention and
It is not used in restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, people in the art
The present invention can be made various changes or modifications by member, and these equivalent form of values fall within the application appended claims equally and limited
Scope.
The Powdered Activated Carbon dystopy that a kind of organic wastewater with difficult degradation thereby as shown in Figure 1 processes is spontaneous and renovation process, including following
Step:
(1) organic wastewater with difficult degradation thereby is injected in adsorbent equipment, in adsorbent equipment, add Powdered Activated Carbon, adsorbent equipment
It is attached to agitator, opens stirring, by Powdered Activated Carbon, the hardly degraded organic substance in waste water is fully adsorbed,
Powdered Activated Carbon preferentially uses wet method to add, it is to avoid produce a large amount of airborne dust；
(2) the biphase product of solid-liquid completing absorption is carried out solid-liquid separation, drain waste water, thus reality by dewaterer
The now process to organic wastewater with difficult degradation thereby, collects the solid obtained；
(3) solid collected is put into the spontaneous regeneration reactor of activated carbon, and to the spontaneous regenerative response of activated carbon
Adding water in device, the spontaneous regeneration reactor of activated carbon is attached to agitator, opens stirring and forms powder activity
The molten slurry of charcoal.Adding hydrogenperoxide steam generator again, the mass concentration of hydrogenperoxide steam generator is 30%, and throwing amount is
3.0～5.0mL/ (L waste water), the spontaneous regeneration reactor of activated carbon is attached to heater, at airtight condition
Under be warming up to 200～250 DEG C, stirring reaction 6～8h；
(4) after reaction terminates, solid-liquid two phase reaction liquid is dehydrated by dewaterer, and the solid obtained is spontaneous and again
Raw Powdered Activated Carbon, it is possible to carry out recycling of step (1).
The principle of the present invention is: utilize activated carbon that the absorption of hardly degraded organic substance in waste water is had the characteristic of broad spectrum activity, permissible
First pass through Powdered Activated Carbon and the hardly degraded organic substance in waste water is adsorbed removing, then the powder being adsorbed with hardly degraded organic substance is lived
Property charcoal separate, the dystopy being realized Powdered Activated Carbon by the condition creating wet oxidation reaction and hydro-thermal carbonization reaction is spontaneous
And regeneration, the more spontaneous and Powdered Activated Carbon of regeneration that can recycle can be obtained by processed.Wet oxidation is anti-
Should by airtight, heat, the spontaneous regeneration reactor of activated carbon that stirs adds hydrogen peroxide react, and
The spontaneous regeneration reactor of activated carbon is airtight and under conditions of regulating and controlling reaction temperature, it is possible to form the reaction bar of hydro-thermal carbonization
Part.Regenerating active carbon is by the Organic substance to being adsorbed in charcoal hole of the wet oxidation in the spontaneous regeneration reactor of activated carbon
Carrying out mineralising and realize, the autogenous process of activated carbon then first passes through hydro-thermal carbonization will be adsorbed in Organic substance charcoal on activated carbon
Change, the CO then formed during steam, mineralization of organic material in the spontaneous regeneration reactor of charcoal airtight, heating of Activated2
Activation under, Organic substance is changed into the activated carbon with larger porosity, thus there is absorbability.
Embodiment 1
Certain textile printing and dyeing enterprises, PVA (polyvinyl alcohol) the desized wastewater water yield of discharge is 300m3/ d, COD are
8000～10000mg/L, the clearance processing COD through Fenton oxidation is only 20～25%, it is difficult to obtains good Organic substance and goes
Except effect.Use the present invention method process, concretely comprise the following steps: (1) by PVA waste water at powder electroless plating
Reason, removes the PVA hardly degraded organic substance in PVA waste water；(2) adsorb the biphase product of solid-liquid completely to take off through dewaterer
Water processes, and collects gained solid, and the waste water of discharge is through detection, and COD is down to 1000～1200mg/L, final and enterprise its
Enter waste water processing station after its low concentration dyeing waste-water mixing to be uniformly processed；(3) solid collected is put into activated carbon spontaneous
Regeneration reactor carries out spontaneous and Regeneration Treatment, first makes powder activity to activated carbon spontaneous regeneration reactor water filling
The molten slurry of charcoal, then add the hydrogenperoxide steam generator that mass concentration is 30%, dosage is 3.5mL/ (L waste water), airtight activity
The spontaneous regeneration reactor of charcoal also heats up, stirring reaction 7h under the conditions of 230 DEG C；(4) reaction terminates rear solid-liquid two
Phase reaction liquid is dehydrated through dewaterer, and gained solid is the Powdered Activated Carbon that dystopy is spontaneous and regenerates, it is possible to be circulated use.
Embodiment 2
Certain textile printing and dyeing enterprises, its composite waste water yield is 1000m3/ d, secondary biochemical effluent is through ozone oxidation, aeration and biological
After the advanced treating of filter tank, COD is 40～60mg/L, stably reaches " urban wastewater treatment firm pollutant emission standard "
(GB18918-2012) the one-level B discharge standard of COD≤60.0mg/L in.Wherein 500m3The advanced water treatment warp of/d
Ultrafiltration, reverse osmosis bi-membrane method process after reuse to the link that dyes, the response rate of double membrane process is 60%, at membrane treatment process
Middle generation 200m3The concentrated solution of/d, concentrated solution COD is 100～150mg/L, it is impossible to reach one-level B standard, need into
Row processes further.The method using the present invention processes, and concretely comprises the following steps: (1) will concentrate waste water through Powdered Activated Carbon
Adsorption treatment, removes the hardly degraded organic substance concentrated in waste water；(2) after absorption completely, the biphase product of gained solid-liquid passes through dehydration
Processing, the waste water of discharge is through detection, and COD is down to 30～50mg/L, can directly discharge, and collects gained solid；
(3) the solid input spontaneous regeneration reactor of activated carbon of collection will carry out spontaneous and Regeneration Treatment, first to activated carbon
The molten slurry of Powdered Activated Carbon is made in spontaneous regeneration reactor water filling, then adds the hydrogenperoxide steam generator that mass concentration is 30%,
Dosage is 3.0mL/ (L waste water), and the spontaneous regeneration reactor of airtight activated carbon also heats up, under the conditions of 210 DEG C
Stirring reaction 6h；(5) reaction terminates rear solid-liquid two phase reaction liquid through processed, and gained solid is that dystopy is spontaneous and regeneration
Powdered Activated Carbon, it is possible to be circulated use.
Present invention have an advantage that and achieve that the dystopy of Powdered Activated Carbon is spontaneous and regeneration so that the powder initially added in system
End activated carbon can recycle, it is not necessary to supplements new Powdered Activated Carbon, avoids conventional carbon burning regeneration method simultaneously
Costly problem, advantageously reduce waste water process cost.The method achieve difficult degradation in organic wastewater with difficult degradation thereby
Organic removal and resource, it is adaptable to printing and dyeing, chemical industry etc. are various containing high concentration and the industrial wastewater of low-concentration organic,
Especially it is difficult to the refractory organic industrial sewage by the senior oxidation processes such as ozone, Fenton.
Claims (7)
1. organic wastewater with difficult degradation thereby process Powdered Activated Carbon dystopy is spontaneous and a renovation process, comprise the following steps:
(1) organic wastewater with difficult degradation thereby is injected in adsorbent equipment, in adsorbent equipment, add Powdered Activated Carbon and stir, powder
Hardly degraded organic substance in waste water is adsorbed by end activated carbon；
(2) the biphase waste water of solid-liquid completing absorption is carried out solid-liquid separation, discharge waste water, collect solid；
(3) in the spontaneous regeneration reactor of activated carbon, the solid collected is mixed with hydrogenperoxide steam generator, airtight condition
Under be warming up to 200～250 DEG C, stirring reaction 6～8h；
(4), after reaction terminates, solid-liquid two phase reaction liquid carries out solid-liquid separation, and the solid obtained carries out the circulation of step (1)
Utilize.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: the Powdered Activated Carbon in described step (1) uses wet method to add.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: the solid of described collection passes through to the spontaneous regenerative response of activated carbon before mixing with hydrogenperoxide steam generator
Device adds water and makes the molten slurry of Powdered Activated Carbon.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: described solid-liquid separation uses dewaterer to be dehydrated.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: described adsorbent equipment is attached to agitator.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: the spontaneous regeneration reactor of described activated carbon is attached to agitator and heater.
A kind of organic wastewater with difficult degradation thereby the most according to claim 1 process Powdered Activated Carbon dystopy is spontaneous and renovation process,
It is characterized in that: the mass concentration of described hydrogenperoxide steam generator is 30%, throwing amount is 3.0～5.0mL/L waste water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610301952.6A CN105903460A (en) | 2016-05-09 | 2016-05-09 | Powdered activated carbon ectopic self generation and regeneration method for hard-degradation organic wastewater treatment |
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| CN201610301952.6A CN105903460A (en) | 2016-05-09 | 2016-05-09 | Powdered activated carbon ectopic self generation and regeneration method for hard-degradation organic wastewater treatment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534435A (en) * | 2018-12-28 | 2019-03-29 | 广西博世科环保科技股份有限公司 | A kind of reinforcing deep treatment method based on wet process regenerating active carbon in situ |
| CN109626728A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of industrial wastewater organic carbon and interior utilization process |
| CN109626729A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of method that the recycling of sanitary sewage organic matter couples iron autotrophic denitrification/nitrification denitrogenation and dephosphorization |
| CN112473637A (en) * | 2020-11-13 | 2021-03-12 | 北京泷涛环境科技有限公司 | Powdered activated carbon regeneration system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626728A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of industrial wastewater organic carbon and interior utilization process |
| CN109626729A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of method that the recycling of sanitary sewage organic matter couples iron autotrophic denitrification/nitrification denitrogenation and dephosphorization |
| CN109534435A (en) * | 2018-12-28 | 2019-03-29 | 广西博世科环保科技股份有限公司 | A kind of reinforcing deep treatment method based on wet process regenerating active carbon in situ |
| CN112473637A (en) * | 2020-11-13 | 2021-03-12 | 北京泷涛环境科技有限公司 | Powdered activated carbon regeneration system and method |
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Application publication date: 20160831 |