CN102838223A - Advanced treatment process for coking wastewater by using resin in multistage fluidized-bed - Google Patents
Advanced treatment process for coking wastewater by using resin in multistage fluidized-bed Download PDFInfo
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- CN102838223A CN102838223A CN2011101653872A CN201110165387A CN102838223A CN 102838223 A CN102838223 A CN 102838223A CN 2011101653872 A CN2011101653872 A CN 2011101653872A CN 201110165387 A CN201110165387 A CN 201110165387A CN 102838223 A CN102838223 A CN 102838223A
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Abstract
The invention relates to the field of wastewater processing, and especially relates to an advanced treatment process for coking wastewater by using resin in a multistage fluidized-bed. In the process, the equipment is composed of N reactors in series, a regeneration apparatus and a relay tank which are connected in sequence, wherein N is an integer that is no less than two; and the flow direction of the resin is reverse to that of the coking wastewater. The process has high utilization rate of the resin and the equipment, can realize continuous treatment of resin adsorption and regeneration, and is stable treatment effect.
Description
Technical field
The present invention relates to field of waste water treatment, relate in particular to the multistage resin flow movable bed of kind of coking chemical waste water advanced treatment process.
Background technology
In the coking chemical waste water Pollutant levels high, be difficult to degraded, and since in the coking chemical waste water content of nitrogen high, cause the required nitrogenous source of biopurification superfluous, bring very big difficulty to processing.So coking chemical waste water is a kind of a large amount of hazardous and noxious substances that contain, complex treatment process, the trade effluent that cost is high, difficulty is big.Simultaneously the coking chemical waste water quantity discharged is big because not only difficult degradation of polycyclic aromatic hydrocarbons in the coking chemical waste water, and still strong carcinogen usually, if do not handle up to standard, in the time of environmental pollution also direct threats to human beings'health.It is perfect inadequately that present domestic coal chemical enterprise wastewater treatment all is faced with technology, lacks cost-effective advanced treatment process, and water outlet is difficult to stably reaching standard, the difficult problem in can't the reuse water system of reuse to Steel Complex.
Resin adsorption method is a kind of important waste water advanced treatment technology, and resin is removed pollutants in waste water through physical adsorption and ion exchanging function.Adopt resin adsorption method, have the clearance height, can concentrate the recovery useful matter, equipment is simpler, controls advantages such as easy, is usually used in the processing of water softening and trade effluent.
But there are some shortcomings that are difficult to overcome in fixed bed of using at present or suspension bed resin absorption reactor drum, and for example the exchange capacity of resin utilization ratio is low; Saturated gradually its adsorption efficiency owing to resin in the operational process descends gradually; Absorption and regeneration intermitten service can't realize the continuous operation of equipment, then must set up a cover or several complete equipments like the continuous processing of need, and plant factor is low.Thermopnore is owing to operational administrative complicacy, less application in the wastewater treatment.
Summary of the invention
In view of there is above-mentioned weak point in prior art; The present invention provides the multistage resin flow movable bed of coking chemical waste water advanced treatment process, is communicated with successively and is formed by N placed in-line reactor drum, reclaim equiment, transfer jar, and the flow direction of resin and coking chemical waste water is reverse; Wherein N is an integer, N >=2.
Concrete steps are:
Coking chemical waste water gets into from the water-in of 1 stage reactor bottom; Fully contact, stir with resin; Water outlet gets into the next stage stage reactor through overflow from the next stage reactor bottom; In the next stage reactor drum, react with resin, coking chemical waste water is through behind the reaction of high order, from the water outlet of last step reactor drum;
Resin gets into from the last step reactor bottom; With the motion of current direction reactor drum middle and upper part, fully contact, stir with coking chemical waste water, reacted resin gets into the upper level reactor drum through pump from the upper level reactor bottom; In the upper level reactor drum, react with coking chemical waste water; Resin is discharged from 1 stage reactor through behind the reaction of high order, squeezes into the transfer jar through pump; This resin is regularly entered in the reclaim equiment regenerates, and the resin of process manipulation of regeneration is circulated back to the last step reactor drum from the resin inlet.
Stir adopt mechanically mixing, line-blending, waterpower to mix a kind of.
Reactor drum is cylindric; Transfer jar top is cylindric, the bottom is divided into coniform.
Described resin particle diameter 120um-1.25mm, resin proportion is 1.03-1.16; The add-on of described resin is the 5%-30% of reactor volume.
Described pump is an airlift pump.
Compared with prior art, advantage of the present invention is:
1) resin and plant factor are high, can realize that resin absorption and regenerated handle continuously, and treatment effect is stablized; 2) integrated degree is high, and floor space is little; 3) can the reactor drum of different quantities be set according to concrete water quality situation; 4) in the use of this equipment, only need add resin, need not to add other medicaments, running cost is low.Equipment of the present invention can be widely used in the Treatment of Coking Effluent of each iron and steel and coal chemical enterprise and the transformation of reuse facility.
Description of drawings
Fig. 1 is a process flow sheet of the present invention, wherein the 1-reactor drum; The 2-reclaim equiment; 3-transfer jar.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 1, among the present invention, the multistage resin flow movable bed of coking chemical waste water advanced treatment process is communicated with successively and is formed by 4 placed in-line reactor drums, reclaim equiment, transfer jar, and its concrete steps are:
Coking chemical waste water gets into from the water-in of 1 stage reactor bottom; Fully contact, stir with resin, water outlet gets into 2 stage reactors through overflow from 2 reactor bottoms, in 2 stage reactors, reacts with resin; Coking chemical waste water through 4 order reactions after, from 4 stage reactor water outlets;
Resin gets into from 4 stage reactors bottom, with the motion of current direction reactor drum middle and upper part, fully contacts, stirs with coking chemical waste water; Reacted resin gets into 3 stage reactors through pump from 3 stage reactors bottoms, in 3 stage reactors, react with coking chemical waste water, resin through 4 order reactions after; Discharge from 1 stage reactor; Squeeze into the transfer jar through pump, this resin is regularly entered in the reclaim equiment regenerates, and gets back to 4 stage reactors from 4 stage reactor bottom cycle through the resin of manipulation of regeneration.
Wherein, stir to adopt mechanical stirring, N=4, reactor drum are cylindric, and transfer jar top is cylindric, the bottom is divided into coniformly, and pump is an airlift pump.
Embodiment
Adopt treatment process of the present invention, the coking chemical waste water of certain enterprise is made advanced treatment, adopt same water sample, carried out 4 tests altogether.
Coking chemical waste water gets into from the water-in of 1 stage reactor bottom; Fully contact, stir with resin, water outlet gets into 2 grades of stage reactors through overflow from 2 stage reactors bottom, in 2 stage reactors, reacts with resin; Coking chemical waste water through 6 order reactions after, from 6 stage reactor water outlets;
Resin gets into from 6 stage reactors bottom, with the motion of current direction reactor drum middle and upper part, fully contacts, stirs with coking chemical waste water; Reacted resin gets into 5 stage reactors through pump from 5 stage reactors bottoms, in 5 stage reactors, react with coking chemical waste water, resin through 6 order reactions after; Discharge from 1 stage reactor; Squeeze into the transfer jar through pump, this resin is regularly entered in the reclaim equiment regenerates, and gets back to 6 stage reactors from 6 stage reactor bottom cycle through the resin of manipulation of regeneration.
Wherein, stir the employing mechanically mixing, N=6; Reactor drum is cylindric, transfer jar top is cylindric, the bottom be divided into coniform, described resin particle diameter 180um; Proportion is 1.10, and the add-on of described resin is 20% of a reactor volume, and described pump is an airlift pump.
Test-results is as shown in the table:
Art breading coking chemical waste water test-results of the present invention
Has good effect by above-mentioned test-results explanation treatment process Treatment of Wastewater in Coking of the present invention.
Claims (8)
1. the multistage resin flow movable bed of coking chemical waste water advanced treatment process is characterized in that being communicated with successively and being formed by N placed in-line reactor drum, reclaim equiment, transfer jar, and the flow direction of resin and coking chemical waste water is reverse, and wherein N is an integer, N >=2.
2. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 1 advanced treatment process, it is characterized in that: concrete steps are:
Coking chemical waste water gets into from the water-in of 1 stage reactor bottom; Fully contact, stir with resin; Water outlet gets into the next stage stage reactor through overflow from the next stage reactor bottom; In the next stage reactor drum, react with resin, coking chemical waste water is through behind the reaction of high order, from the water outlet of last step reactor drum;
Resin gets into from the last step reactor bottom; With the motion of current direction reactor drum middle and upper part, fully contact, stir with coking chemical waste water, reacted resin gets into the upper level reactor drum through pump from the upper level reactor bottom; In the upper level reactor drum, react with coking chemical waste water; Resin is discharged from 1 stage reactor through behind the reaction of high order, squeezes into the transfer jar through pump; This resin is regularly entered in the reclaim equiment regenerates, and the resin of process manipulation of regeneration is circulated back to the last step reactor drum from the last step reactor bottom.
3. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 2 advanced treatment process is characterized in that: stir adopt mechanically mixing, line-blending, waterpower to mix a kind of.
4. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 3 advanced treatment process is characterized in that:, reactor drum is cylindric.
5. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 4 advanced treatment process, it is characterized in that: transfer jar top is cylindric, the bottom is divided into coniform.
6. like claim 3 or the multistage resin flow movable bed of 5 described coking chemical waste waters advanced treatment process, it is characterized in that: described resin particle diameter 120um-1.25mm, resin proportion is 1.03-1.16.
7. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 6 advanced treatment process, it is characterized in that: the add-on of described resin is the 5%-30% of reactor volume.
8. the multistage resin flow movable bed of coking chemical waste water as claimed in claim 7 advanced treatment process, it is characterized in that: described pump is an airlift pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653872A CN102838223A (en) | 2011-06-20 | 2011-06-20 | Advanced treatment process for coking wastewater by using resin in multistage fluidized-bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653872A CN102838223A (en) | 2011-06-20 | 2011-06-20 | Advanced treatment process for coking wastewater by using resin in multistage fluidized-bed |
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| CN102838223A true CN102838223A (en) | 2012-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944498A (en) * | 2015-05-21 | 2015-09-30 | 南京大学 | Composite powdery resin high-efficiency water purification system and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213229U (en) * | 1987-09-05 | 1988-11-16 | 广东省轻工业设计院 | Four-column type moving bed water treatment equipment |
| EP0490396B1 (en) * | 1990-12-14 | 1996-03-13 | DEUTSCHE NALCO-CHEMIE GmbH | Process for recovery of ammonia from process and waste waters |
| CN1884116A (en) * | 2006-07-10 | 2006-12-27 | 同济大学 | Method for processing refuse-burning fly-ash by using magnesium ammonium phosphate sedimentation sludge |
-
2011
- 2011-06-20 CN CN2011101653872A patent/CN102838223A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213229U (en) * | 1987-09-05 | 1988-11-16 | 广东省轻工业设计院 | Four-column type moving bed water treatment equipment |
| EP0490396B1 (en) * | 1990-12-14 | 1996-03-13 | DEUTSCHE NALCO-CHEMIE GmbH | Process for recovery of ammonia from process and waste waters |
| CN1884116A (en) * | 2006-07-10 | 2006-12-27 | 同济大学 | Method for processing refuse-burning fly-ash by using magnesium ammonium phosphate sedimentation sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944498A (en) * | 2015-05-21 | 2015-09-30 | 南京大学 | Composite powdery resin high-efficiency water purification system and method thereof |
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Application publication date: 20121226 |