CN103253831B - Heterogeneous catalysis Fenton reagent oxidation fluidized bed-anaerobic biological fluidized bed coking wastewater deep treatment system - Google Patents
Heterogeneous catalysis Fenton reagent oxidation fluidized bed-anaerobic biological fluidized bed coking wastewater deep treatment system Download PDFInfo
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Abstract
The invention discloses a heterogeneous catalysis Fenton reagent oxidation fluidized bed-anaerobic biological fluidized bed coking wastewater deep treatment system. The system comprises a heterogeneous catalysis Fenton reagent oxidation fluidized bed, a regulation bed and an anaerobic biological fluidized bed which are sequentially connected, wherein a water inlet area is arranged at the bottom of the oxidation fluidized bed, a coke powder iron-carrying catalyst is filled in the oxidation fluidized bed, and a solid-liquid separator is arranged at the top of the oxidation fluidized bed; the regulation bed is connected with a nutrient dosing device, and a heating sleeve is arranged in the regulation bed; and a coal powder biological filler is filled in the anaerobic biological fluidized bed, a three-phase separator is arranged at the top of the anaerobic biological fluidized bed, and a gas collection port of the three-phase separator is connected with a tail gas collecting device. The system combines the heterogeneous catalysis Fenton reagent oxidation fluidized bed and the anaerobic biological fluidized bed for deep treatment of coking wastewater, and can realize economic and high-efficient treatment of the coking wastewater so as to enable outlet water after treatment to achieve a standard of reclaimed water.
Description
Technical field
The present invention relates to a kind of coking wastewater deep treatment technology, relate in particular to a kind of heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system.
Background technology
Along with the development of socioeconomic growth, steel industry, the demand quantitative change of STRENGTH ON COKE is large, makes coking industry development, has produced a large amount of coking chemical waste waters.Coking chemical waste water is a kind of pollutent with typical industry characteristic, is also a kind of water resources of preciousness.Water resources has not only been wasted in a large amount of discharges of coking chemical waste water, and causes serious environmental pollution, directly threatens human health simultaneously.
Coking chemical waste water mainly results from the middle of high temperature carbonization process, gas purification process and the chemical products treating process of coal, complicated component is changeable, the phenols that this class waste water contains high density, oil content, ammonia nitrogen and other biological inhibitory substance, the smell is awful and colourity is higher for waste water, is typical high-concentration hardly-degradable poisonous and harmful organic industrial sewage.Meanwhile, coking chemical waste water also has the large feature of variation water quality.At present, the most of employing of coking chemical waste water be take biological treatment as main treatment process, because Biostatic substances content in coking chemical waste water is high, water quality and quantity fluctuation is large, cause current its biological treatment to exist hydraulic detention time long, working cost is higher, and water outlet COD is difficult to the problems such as stably reaching standard.
Because biochemical processing process is difficult to realize the target of qualified discharge after Treatment of Coking Effluent, must carry out advanced treatment to coking chemical waste water.In various advanced treatment process of coking waste water, Fenton reagent oxidation is conventional wastewater deep treatment process, the strong oxidation of hydroxyl radical free radical (OH) that this technology utilization reaction generates and the throwing out of the hydrate of iron, can effectively remove organism.But traditional Fenton reagent oxidation technique also exists some shortcomings, for example water outlet pH value is often for still containing the organism of higher concentration in acidity, water outlet, and the mud producing in treating processes can bring the serious shortcomings such as secondary pollution.
Heterocatalysis Fenton reagent oxidation is the improvement technique to Fenton reagent oxidation, mainly by add efficient heterogeneous catalyst in Fenton reagent oxidation system, to replace the homogeneous catalyst of ferrous ion, can reduce the mud producing in treating processes, widen technique applicable pH range simultaneously.But there is water outlet pH slant acidity in heterocatalysis Fenton reagent oxidation technique, water outlet still contains the shortcomings such as a certain amount of organism.
In prior art, in order further to reduce the organic concentration in Fenton reagent oxidation technique or heterocatalysis Fenton reagent oxidation Process for Effluent, the method adopting is that water outlet is carried out to further aerobe processing, mainly adopts the techniques such as BAC process, aerobic biofilter and bio-contact oxidation.Yet these some drawbacks for the treatment of process physical presence: first in water outlet, organic content is not high, while adopting aerobe technique, because aerobic microbiological respiratory rate comparatively fast causes nutritive substance not enough, need additional carbon aeration, in addition because water inlet is often acid, need to add the pH value that alkali regulates water inlet, these have all increased energy consumption and the working cost of coking wastewater deep treatment.Thereby employing Fenton reagent oxidation (or heterocatalysis Fenton reagent oxidation) is not the selection of an economical and energy saving with aerobe process integration advanced treatment on coking wastewater.
Summary of the invention
The object of this invention is to provide a kind of heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system, can carry out to coking chemical waste water the processing of economical and efficient.
The object of the invention is to be achieved through the following technical solutions:
Heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system of the present invention, comprises heterocatalysis Fenton reagent oxidation fluidized-bed, regulation bed and anaerobe fluidized-bed;
The bottom of described heterocatalysis Fenton reagent oxidation fluidized-bed is that inhalant region, inner filling coke powder carry iron catalyst, top is provided with solid-liquid separator, and described inhalant region is provided with water intake, H
2o
2solution entrance and return of waste water mouth, middle part, described inhalant region is provided with paddle board reactor, and the top of described inhalant region is porous water distribution board, between described solid-liquid separator and described return of waste water mouth, is connected with return line, described H
2o
2solution entrance is connected with H
2o
2chemicals dosing plant;
The water outlet of described solid-liquid separator is connected with the water-in of described regulation bed, and described regulation bed is connected with nutritive substance chemicals dosing plant, and described regulation bed inside is provided with heating muff, and the water outlet of described regulation bed is connected with the water-in of described anaerobe fluidized-bed;
In described anaerobe fluidized-bed, be filled with coke powder biologic packing material, bottom is provided with water-in and porous liquid grid distributor, top are provided with triphase separator, the collection and confinement of gases mouth of described triphase separator is connected with tail gas collecting device, between the water outlet of described triphase separator and the water-in of described regulation bed, is connected with return line.
As seen from the above technical solution provided by the invention, heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobic fluidized bed advanced treatment on coking wastewater system that the embodiment of the present invention provides, owing to adopting heterocatalysis Fenton reagent oxidation fluidized-bed and anaerobe fluidized-bed coupling advanced treatment on coking wastewater, can realize coking chemical waste water economical and efficient and process, after processing, water outlet can reach reuse water standard.
Accompanying drawing explanation
The structural representation of heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system that Fig. 1 provides for the embodiment of the present invention.
In figure: 1, intake pump, 2, heterocatalysis Fenton reagent oxidation fluidized-bed, 3, porous water distribution board, 4, intake pump, 5, regulation bed, 6, heating muff, 7, H
2o
2chemicals dosing plant, 8, dosing pump, 9, solid-liquid separator, 10, paddle board reactor, 11, return line, 12, reflux pump, 13, nutritive substance volume pump, 14, nutritive substance chemicals dosing plant, 15, reflux pump, 16, collection and confinement of gases mouth, 17, device for absorbing tail gas, 18, anaerobic fluidized bed, 19, porous liquid grid distributor, 20, intake pump.
Embodiment
To be described in further detail the embodiment of the present invention below.
Heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system of the present invention, its preferably embodiment be:
Comprise heterocatalysis Fenton reagent oxidation fluidized-bed, regulation bed and anaerobe fluidized-bed;
The bottom of described heterocatalysis Fenton reagent oxidation fluidized-bed is that inhalant region, inner filling coke powder carry iron catalyst, top is provided with solid-liquid separator, and described inhalant region is provided with water intake, H
2o
2solution entrance and return of waste water mouth, middle part, described inhalant region is provided with paddle board reactor, and the top of described inhalant region is porous water distribution board, between described solid-liquid separator and described return of waste water mouth, is connected with return line, described H
2o
2solution entrance is connected with H
2o
2chemicals dosing plant;
The water outlet of described solid-liquid separator is connected with the water-in of described regulation bed, and described regulation bed is connected with nutritive substance chemicals dosing plant, and described regulation bed inside is provided with heating muff, and the water outlet of described regulation bed is connected with the water-in of described anaerobe fluidized-bed;
In described anaerobe fluidized-bed, be filled with coke powder biologic packing material, bottom is provided with water-in and porous liquid grid distributor, top are provided with triphase separator, the collection and confinement of gases mouth of described triphase separator is connected with tail gas collecting device, between the water outlet of described triphase separator and the water-in of described regulation bed, is connected with return line.
The packing volume that described coke powder carries iron catalyst is 15%～35% of described heterocatalysis Fenton reagent oxidation fluidized-bed volume, and the aspect ratio of described heterocatalysis Fenton reagent oxidation fluidized-bed is 5:1～10:1;
The aspect ratio of described regulation bed is 3:1～5:1;
In described anaerobe fluidized-bed, the tamped density of coke powder biologic packing material is 100～300g/L.
It is carrier that described coke powder carries the coke powder that the discarded particle diameter in iron catalyst employing coke-oven plant is 0.1～0.5mm, at ferrum sulfuricum oxydatum solutum, dilution heat of sulfuric acid and H
2o
2in solution mixing solutions, with the volume ratio of 1:3～1:5, flood 3 weeks, slowly heat evaporate to dryness under 50 ℃～70 ℃ conditions, while initially flooding, pH is 3, H
2o
2and FeSO
4the ratio of mole dosage be 3:1～7:1;
Described coke powder biologic packing material adopts the coke powder that the discarded particle diameter in coke-oven plant is 0.5～1.0mm, before using, adopts coke-oven plant's high-temperature water vapor to activate 6h under 800 ℃ of conditions.
In described heterocatalysis Fenton reagent oxidation fluidized-bed operational process, waste water upflow velocity is that 20～40m/h, hydraulic detention time are that 0.5～1h, return of waste water are 300% than (waste water turns back to the flow at top and the ratio of flooding velocity by heterocatalysis Fenton reagent oxidation fluidized-bed bottom);
In described regulation bed operational process, hydraulic detention time is that 2～3h, waste water upflow velocity are that in 6～40m/h, regulation bed, waste water Heating temperature is 40 ℃～60 ℃;
In described anaerobe fluidized-bed operational process, hydraulic detention time is that 1.5～2h, waste water upflow velocity are that 10～9m/h, return of waste water are 100% than (waste water returns to regulation bed flow and the ratio that enters anaerobe fluidized-bed flow by anaerobe fluidized-bed tower top).
Heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized-bed process integration advanced treatment on coking wastewater system of the present invention, can realize coking chemical waste water economical and efficient and process, and after processing, water outlet can reach reuse water standard.
Specific embodiment:
By heterocatalysis Fenton oxidation fluidized-bed, regulation bed and anaerobe fluidised bed zones, be connected in sequence.The water-in of heterocatalysis Fenton oxidation fluidized-bed is as the water-in of system, and anaerobic fluidized bed water outlet is as the water outlet of system.
Waste water is pumped into the inhalant region of heterocatalysis Fenton oxidation fluidized-bed reactor bottom by intake pump.Meanwhile, from the H of dosing pump
2o
2solution and be also all pumped to inhalant region from the backflow waste water of reflux pump mixes under the effect of paddle board reactor, and then the porous water distribution board on top, inhalant region enters reactor middle part.After intake pump, dosing pump and reflux pump, be equipped with flow valve, to control flow and the flow velocity of former water.
Heterocatalysis Fenton oxidation fluidized-bed reactor middle part is gas, solid, liquid three-phase up-flow district, is also the main reaction region of heterocatalysis Fenton oxidation fluidized-bed.The upflow velocity that waste water enters behind main reaction region is 20～40m/h, and hydraulic detention time is 0.5～1h, fills coke powder and carry iron catalyst on porous water distribution board, and packing volume is 15%～35% of fluidized-bed volume, and the aspect ratio of main reaction region is 5:1～10:1.Support of the catalyst is homogenizing, fluidization in reactor; Outer Shi Jiangliu district.Solid catalyst is fluidized state in fluidized-bed reactor, but be difficult for producing secondary pollutant with current outflow reactor, allow in reactor and maintain stable solid catalysis agent concentration, can make again between catalyzer, oxygenant and waste water fully contact reacts, improve rate of oxidation.
Heterocatalysis Fenton oxidation fluidized-bed reactor top is provided with equipment for separating liquid from solid, further improves catalyzer and waste water separation degree, and a separated waste water part is back to reactor bottom by return line, and another part enters regulation bed.
In regulation bed, hydraulic detention time is 2～3h, and this district is provided with nutritive substance chemicals dosing plant, and volume pump drops into nutritive substance regulation bed and controls respectively its dosage, and regulation bed top is provided with waste hot steam access tube, and inside is provided with heating muff.Water outlet, buffered soln and the microbial nutrition material of heterocatalysis Fenton oxidation fluidised bed zones mix, and adopt coke-oven plant's exhaust steam that waste water in regulation bed is heated to 40 ℃～60 ℃, not only accelerate H residual in waste water
2o
2decomposition, reduce its restraining effect to latter stage microorganism, increased some energy also to the anaerobic stages of latter stage simultaneously, improve the speed of anaerobic digestion.
Regulation bed water outlet pumps into anaerobe fluidized-bed by intake pump, its hydraulic detention time is 1.5～2h, waste water upflow velocity is 10～9m/h, be filled with coke powder biologic packing material, tamped density is 100～300g/L, and bottom is provided with porous water distributor, and top is provided with triphase separator and sludge gas collecting device, also be provided with internal reflux pipeline, reflux ratio is 100%.
Coke powder biologic packing material adopts the coke powder that the discarded particle diameter in coke-oven plant is 0.5～1.0mm, before using, adopts coke-oven plant's high-temperature water vapor to activate 6h under 800 ℃ of conditions.Not only specific surface area and porosity increase coke powder filler after by activation, its density also reduces, both increased microbial film charge capacity, also reduced the needed flow velocity of fluidisation, anaerobic process biogas, composite waste, the fluidization in reactor of anaerobe film three-phase.Anaerobe and organic contact in waste water have been strengthened in biomembranous fluidization, under the synergy of obligatory anaerobic bacteria and double oxygen bacterium, effectively utilize the organic acid in waste water after heterocatalysis Fenton reagent oxidation fluidized bed processing, are degraded to CH
4and NH
3.Simultaneously, these microorganisms utilize a small amount of iron containing sludge granulated that heterocatalysis Fenton reagent oxidation fluidized-bed flows out to become active flco, and the element that a small amount of iron ion of being separated out by Fenton catalyzer needs as anaerobic fluidized bed district microorganism growth and being utilized.
Below in conjunction with Fig. 1, above-described embodiment is further described in detail:
As shown in Figure 1, this coking advanced waste treatment system consists of heterocatalysis Fenton reagent oxidation fluidized-bed 2, regulation bed 5 and anaerobe fluidized-bed 18.
Coking chemical waste water is pumped into the inhalant region 3 of reactor bottom by the water-in of heterocatalysis Fenton reagent oxidation fluidized-bed 2 by intake pump 1.Heterocatalysis Fenton reagent oxidation fluidized-bed is provided with H
2o
2solution chemicals dosing plant 7, by 8 H that store of dosing pump
2o
2solution is defeated delivers to inhalant region, heterocatalysis Fenton reagent oxidation fluidized-bed reactor bottom through dosing mouth, and dosing flow valve is controlled H
2o
2the dosage of solution.In addition, heterocatalysis Fenton reagent oxidation fluidized-bed backflow waste water also enters heterocatalysis Fenton reagent oxidation fluidized-bed bottom by reflux pump 12 through return line 11.Solution evenly mixes under slurry reactor 10 effects of inhalant region.
Former water rises to the main reaction region at reactor middle part through the porous water distribution board at top, inhalant region in inhalant region.The upflow velocity that waste water enters behind main reaction region is 20～40m/h, and hydraulic detention time is 0.5～1h, fills coke powder and carry iron catalyst on porous water distribution board, and packing volume is 15%～35% of fluidized-bed volume, and the aspect ratio of main reaction region is 5:1～10:1.Support of the catalyst is homogenizing, fluidization in reactor; Outer Shi Jiangliu district.Solid catalyst is fluidized state in fluidized-bed reactor, but be difficult for producing secondary pollutant with current outflow reactor, allow in reactor and maintain stable solid catalysis agent concentration, can make again between catalyzer, oxygenant and waste water fully contact reacts, improve rate of oxidation.
At main reaction region coking chemical waste water, mix completely with catalyzer, the complicated larger molecular organics in the water outlet of coking chemical waste water bioprocess technology changes into small molecular organic acid, and partial organic substances is further oxidized to CO
2and H
2o.In buffer zone, top, solid catalyst is because self gravitation is deposited to reactor bottom, and waste water continues to rise, further separated with water at the solid-liquid displacement zone on top catalyzer.Through the coking chemical waste water of heterocatalysis Fenton oxide treatment, the larger molecular organics of difficult degradation is oxidized to after organic acid, alcohol etc. small organic molecule, by intake pump 4, enters and joins regulation bed 5.
Regulation bed 5 is provided with nutritive substance chemicals dosing plant 14, because phosphorus element content in coking chemical waste water is low, so Na
2hPO
3as the phosphorus source of subsequent reactions, by volume pump 13 pumps, add in regulation bed.Meanwhile, on the top of regulation bed, be provided with waste hot steam access port, inside is provided with heating muff 6.Water outlet, buffered soln and the microbial nutrition material of heterocatalysis Fenton oxidation fluidised bed zones mix, and adopt coke-oven plant's exhaust steam that waste water in regulation bed is heated to 40 ℃～60 ℃, not only accelerate H residual in waste water
2o
2decomposition, reduce its restraining effect to latter stage microorganism, increased some energy also to the anaerobic stages of latter stage simultaneously, improve the speed of anaerobic digestion.
The current of regulation bed are through intake pump 20, enter anaerobic fluidized bed reaction zone 18, by bottom porous liquid grid distributor 19, realize the fluidization of anaerobic sludge, under the synergy of obligatory anaerobic bacteria and double oxygen bacterium, the waste water of anaerobic digestion after the degraded of heterocatalysis Fenton reagent oxidation fluidized-bed, by its inorganicization.In addition the top in anaerobic fluidized bed district 18 is also provided with gas collector 17, collects CH
4and NH
3deng gas.Through the water outlet of anaerobic fluidized bed processing, a part is configured to regulation bed 5 by reflux pump 15, and the remainder water yield reaches water outlet, finally obtains good effluent quality, realizes the stably reaching standard of coking chemical waste water.
Coking wastewater processing system in the embodiment of the present invention, compare traditional chemical oxidation-aerobe combination treatment coking chemical waste water technology and have the following advantages and positive effect:
(1) in advanced treatment process of coking waste water, as traditional technology, do not adopt aerobic biological treatment process as the subsequent treatment process of chemical oxidation, but adopt anaerobic technique as follow-up treatment process, this way can be removed aeration operation, avoid regulating into water pH value, needn't add external carbon source, greatly reduce working cost; Also utilize anaerobion to there is stronger water quality adaptability than aerobic microbiological simultaneously, alleviated difficult degradation harmful organic substance and H in waste water
2o
2impact on microorganism active.
(2) this technique is according to the character of coking chemical waste water, features in conjunction with Fenton reagent oxidation and anaerobe fluidized-bed, especially directly the process characteristic that utilizes Fenton reagent oxidation Process for Effluent to contain a large amount of organic acids and anaerobic technique subordinate phase degradation acid, ingenious coupling, the residence time of shortening anaerobe technique; In addition, this technique also utilizes a small amount of iron ion of catalyzer stripping in heterocatalysis Fenton reagent oxidation technique as the nutritive element of microorganism in anaerobic biological technique, has reduced the contribution of iron ion to effluent color dilution; Also utilized small-particle that heterocatalysis Fenton reagent oxidation technique overflows as the carrier of anaerobe fluidized bed bio mud.
(3) this technique also takes full advantage of coking chemical waste water long waste gas raw material and the energy, has not only utilized the discarded coke powder of coking chemical waste water as catalyzer and bio-carrier, by rational preparation technology and activating process, has improved its effect; Also utilize the used heat of coke-oven plant, accelerated residual H in waste water
2o
2decomposition, reduce its restraining effect to latter stage microorganism, increased some energy also to the anaerobic stages of latter stage simultaneously, improve the speed of anaerobic digestion.
(4) this technique also utilizes heterocatalysis Fenton reagent oxidation to improve traditional F enton reagent oxidation, has reduced mud discharging, has widened its pH value range of application, has also retained the technological advantage of Fenton reagent oxidation advanced treatment of waste water.
The water technology that the embodiment of the present invention provides is processed coking chemical waste water, according to the character of coking chemical waste water, features in conjunction with Fenton oxidation and bioprocess technology, ingenious coupling, based on heterocatalysis Fenton reagent oxidation and anaerobic fluidized bed treatment effect, adopt this system advanced treatment on coking wastewater, there are important environmental value and significant economical, societal benefits.The water quality that native system is processed rear water outlet can reach national standard of drainage, meets the requirement of the water of productive use such as coke-oven plant's water coolant, dustproof watering and equipment washing and even domestic water.Realize improvement and the reuse of coking chemical waste water, alleviated plant area's water pressure.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system, is characterized in that, comprises heterocatalysis Fenton reagent oxidation fluidized-bed, regulation bed and anaerobe fluidized-bed;
The bottom of described heterocatalysis Fenton reagent oxidation fluidized-bed is that inhalant region, inner filling coke powder carry iron catalyst, top is provided with solid-liquid separator, and described inhalant region is provided with water intake, H
2o
2solution entrance and return of waste water mouth, middle part, described inhalant region is provided with paddle board reactor, and the top of described inhalant region is porous water distribution board, between described solid-liquid separator and described return of waste water mouth, is connected with return line, described H
2o
2solution entrance is connected with H
2o
2chemicals dosing plant;
The water outlet of described solid-liquid separator is connected with the water-in of described regulation bed, and described regulation bed is connected with nutritive substance chemicals dosing plant, and described regulation bed inside is provided with heating muff, and the water outlet of described regulation bed is connected with the water-in of described anaerobe fluidized-bed;
In described anaerobe fluidized-bed, be filled with coke powder biologic packing material, bottom is provided with water-in and porous liquid grid distributor, top are provided with triphase separator, the collection and confinement of gases mouth of described triphase separator is connected with tail gas collecting device, between the water outlet of described triphase separator and the water-in of described regulation bed, is connected with return line;
The packing volume that described coke powder carries iron catalyst is 15%～35% of described heterocatalysis Fenton reagent oxidation fluidized-bed volume, and the aspect ratio of described heterocatalysis Fenton reagent oxidation fluidized-bed is 5:1～10:1;
The aspect ratio of described regulation bed is 3:1～5:1;
In described anaerobe fluidized-bed, the tamped density of coke powder biologic packing material is 100～300g/L;
It is carrier that described coke powder carries the coke powder that the discarded particle diameter in iron catalyst employing coke-oven plant is 0.1～0.5mm, at ferrum sulfuricum oxydatum solutum, dilution heat of sulfuric acid and H
2o
2in solution mixing solutions, with the volume ratio of 1:3～1:5, flood 3 weeks, slowly heat evaporate to dryness under 50 ℃～70 ℃ conditions, while initially flooding, pH is 3, H
2o
2and FeSO
4the ratio of mole dosage be 3:1～7:1;
Described coke powder biologic packing material adopts the coke powder that the discarded particle diameter in coke-oven plant is 0.5～1.0mm, before using, adopts coke-oven plant's high-temperature water vapor to activate 6h under 800 ℃ of conditions.
2. heterocatalysis Fenton reagent oxidation fluidized-bed-anaerobe fluidized bed deep treatment coking chemical waste water system according to claim 1, it is characterized in that, in described heterocatalysis Fenton reagent oxidation fluidized-bed operational process, waste water upflow velocity is that 20～40m/h, hydraulic detention time are that 0.5～1h, return of waste water ratio are 300%;
In described regulation bed operational process, hydraulic detention time is that 2～3h, waste water upflow velocity are that in 6～40m/h, regulation bed, waste water Heating temperature is 40 ℃～60 ℃;
In described anaerobe fluidized-bed operational process, hydraulic detention time is that 1.5～2h, waste water upflow velocity are that 10～9m/h, return of waste water ratio are 100%.
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| CN105330070A (en) * | 2015-11-30 | 2016-02-17 | 无锡工源机械有限公司 | Heterogeneous fenton reactor |
| CN108947139A (en) * | 2018-08-13 | 2018-12-07 | 九江天赐高新材料有限公司 | A kind of processing method of the high ammonia-nitrogen wastewater containing organic amine |
| CN115814806B (en) * | 2021-11-12 | 2024-02-13 | 中国矿业大学 | Vanadium titano-magnetite-coke powder composite material and preparation method and application thereof |
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| CN101781067A (en) * | 2010-03-23 | 2010-07-21 | 哈尔滨工业大学 | Method for treating coking wastewater |
| CN102001767A (en) * | 2010-10-26 | 2011-04-06 | 中国矿业大学(北京) | Advanced treatment system of coking wastewater |
| CN102626627A (en) * | 2012-03-26 | 2012-08-08 | 南京大学 | Preparation method of activated carbon supported ferrous heterogeneous Fenton's reagent oxidation catalyst |
| CN202898099U (en) * | 2012-11-06 | 2013-04-24 | 四川立新瑞德水处理有限责任公司 | Fenton fluidized bed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986492A (en) * | 2017-12-01 | 2018-05-04 | 东华大学 | A kind of method that cotton pulp black liquor out-phase class Fenton oxidation processing improves biodegradability |
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| CN103253831A (en) | 2013-08-21 |
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