CN108911432A - The processing unit and treatment process of disperse dyestuff waste water - Google Patents

The processing unit and treatment process of disperse dyestuff waste water Download PDF

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Publication number
CN108911432A
CN108911432A CN201811017887.XA CN201811017887A CN108911432A CN 108911432 A CN108911432 A CN 108911432A CN 201811017887 A CN201811017887 A CN 201811017887A CN 108911432 A CN108911432 A CN 108911432A
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China
Prior art keywords
waste water
fenton
pond
inlet end
reaction
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CN201811017887.XA
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Chinese (zh)
Inventor
潘海龙
张琪
包向明
郭金利
钱云飞
高甲义
杭小建
朱亮
孙健
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Jiangsu Taiyuan Environmental Protection Technology Co Ltd
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Jiangsu Taiyuan Environmental Protection Technology Co Ltd
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Priority to CN201811017887.XA priority Critical patent/CN108911432A/en
Publication of CN108911432A publication Critical patent/CN108911432A/en
Pending legal-status Critical Current

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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
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • 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
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/308—Dyes; Colorants; Fluorescent agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The processing unit and treatment process of a kind of disperse dyestuff waste water of the embodiment of the present invention, the processing unit include：PH conditioning tank；The water inlet end of light electrolysis tower, light electrolysis tower is connected with the water outlet of pH conditioning tank；The water inlet end in preceding Fenton's reaction pond, preceding Fenton's reaction pond is connected with the water outlet of light electrolysis tower；Sedimentation basin, the water inlet end of sedimentation basin are connected with the water outlet in preceding Fenton's reaction pond；Hydrolysis acidification pool, the water inlet end of hydrolysis acidification pool are connected with the supernatant water outlet for stating sedimentation basin；Contact-oxidation pool, the water inlet end of contact-oxidation pool are connected with the water outlet of hydrolysis acidification pool；The water inlet end in Fenton's reaction pond afterwards, rear Fenton's reaction pond is connected with the water outlet of contact-oxidation pool；Shallow air-floatation pond, the water inlet end in shallow air-floatation pond are connected with the water outlet in rear Fenton's reaction pond；The water inlet end in ozone pond, ozone pond is connected with the water outlet in shallow air-floatation pond.The processing unit of disperse dyestuff waste water according to an embodiment of the present invention, high treating effect.

Description

The processing unit and treatment process of disperse dyestuff waste water
Technical field
The present invention relates to technical field of sewage, more particularly to the processing unit and processing of a kind of disperse dyestuff waste water Technique.
Background technique
Containing high molecular organic matters such as a large amount of azo-compound and methyl blues in disperse dyestuff waste water, it is difficult to pass through life Change degradation directly to handle, while containing a large amount of inorganic salts in waste water, it is very big to Biochemical Effect.Therefore traditional handicraft can not be to this It is effectively treated.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of processing units of the disperse dyestuff waste water of high treating effect.
Another object of the present invention is to propose a kind for the treatment of process of the disperse dyestuff waste water of high treating effect.
A kind of processing unit of disperse dyestuff waste water according to an embodiment of the present invention, including：
PH conditioning tank；
Light electrolysis tower, the water inlet end of the light electrolysis tower are connected with the water outlet of the pH conditioning tank；
The water inlet end in preceding Fenton's reaction pond, the preceding Fenton's reaction pond is connected with the water outlet of the light electrolysis tower；
Sedimentation basin, the water inlet end of the sedimentation basin are connected with the water outlet in the preceding Fenton's reaction pond；
Hydrolysis acidification pool, the water inlet end of the hydrolysis acidification pool are connected with the supernatant water outlet of the sedimentation basin；
Contact-oxidation pool, the water inlet end of the contact-oxidation pool are connected with the water outlet of the hydrolysis acidification pool；
The water inlet end in Fenton's reaction pond afterwards, the rear Fenton's reaction pond is connected with the water outlet of the contact-oxidation pool；
Shallow air-floatation pond, the water inlet end in the shallow air-floatation pond are connected with the water outlet in the rear Fenton's reaction pond；
Ozone pond, the water inlet end in the ozone pond are connected with the water outlet in the shallow air-floatation pond.
Advantageously, the processing unit of the disperse dyestuff waste water further includes air blower, the output end point of the air blower It is not connected with the light electrolysis tower, the contact-oxidation pool and the rear Fenton's reaction pond.
Advantageously, the processing unit of the disperse dyestuff waste water further includes activated carbon adsorption tank, the activated carbon adsorption The water inlet end in pond is connected with the water outlet in the ozone pond.
Advantageously, the pH value in the pH conditioning tank is 2.5, and the hydraulic detention time of the light electrolysis tower is 45min, institute The hydraulic detention time in Fenton's reaction pond is 45min before stating, and the hydraulic detention time of the hydrolysis acidification pool is 18hr, described to connect The hydraulic detention time for touching oxidation pond is 13.5hr, and the hydraulic detention time in the rear Fenton's reaction pond is 45min.
Advantageously, during the reaction of preceding Fenton's reaction pond, according to 0.5~1ml/lWaste waterHydrogen peroxide is added；The Fenton after described During reaction tank reacts, according to 0.5~1.5ml/lWaste waterHydrogen peroxide is added and according to 1.3~2.6g/lWaste waterFerrous sulfate is added.
A kind for the treatment of process of disperse dyestuff waste water according to an embodiment of the present invention, includes the following steps：
Step 1：The pH value of waste water is adjusted to acidity；
Step 2：The waste water that step 1 processing obtains is introduced into light electrolysis tower and stopped for the first predetermined time；
Step 3：Fenton's reaction pond and the second predetermined time of stop before the waste water that step 2 processing obtains is introduced；
Step 4：The waste water that step 3 processing obtains is introduced into sedimentation basin to obtain supernatant；
Step 5, the supernatant that step 4 processing obtains is introduced into hydrolysis acidification pool and stops the third predetermined time；
Step 6, the waste water that step 5 processing obtains is introduced into contact-oxidation pool and stopped for the 4th predetermined time；
Step 7, Fenton's reaction pond and the 5th predetermined time of stop after the waste water that step 6 processing obtains being introduced；
Step 8, the waste water that step 7 processing obtains is introduced into shallow air-floatation pond；
Step 9, the waste water that step 8 processing obtains is introduced into ozone pond and carries out oxidation reaction.
Advantageously, a kind for the treatment of process of disperse dyestuff waste water further includes respectively to the light electrolysis tower, described The step of contact-oxidation pool and the rear Fenton's reaction pond carry out air blast.
Advantageously, a kind for the treatment of process of disperse dyestuff waste water further includes step 10, and step 9 processing is obtained Waste water introduces activated carbon adsorption tank and carries out adsorption reaction.
Advantageously, the pH value of step 1 is 2.5, and first predetermined time is 45min, and second predetermined time is 45min, the third predetermined time are 18hr, and the 4th predetermined time is 13.5hr, and the 5th predetermined time is 45min。
Advantageously, in step 3, according to 0.5~1ml/lWaste waterHydrogen peroxide is added；In step 7, according to 0.5~1.5ml/lWaste water Hydrogen peroxide is added and according to 1.3~2.6g/lWaste waterFerrous sulfate is added.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the schematic diagram of the processing unit of score waste water from dyestuff according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail the processing unit of disperse dyestuff waste water according to an embodiment of the present invention a kind of.
As shown in Figure 1, a kind of processing unit of disperse dyestuff waste water according to an embodiment of the present invention, including：PH conditioning tank 101, light electrolysis tower 102, preceding Fenton's reaction pond 103, sedimentation basin 104, hydrolysis acidification pool 105, contact-oxidation pool 106, rear Fenton Reaction tank 107, shallow air-floatation pond 108, ozone pond 109.
Specifically, the water inlet end of light electrolysis tower 102 is connected with the water outlet of pH conditioning tank 101.
The water inlet end in preceding Fenton's reaction pond 103 is connected with the water outlet of light electrolysis tower 102.
The water inlet end of sedimentation basin 104 is connected with the water outlet in preceding Fenton's reaction pond 103.Advantageously, sedimentation basin 104 can be Inclined-plate clarifying basin.
The water inlet end of hydrolysis acidification pool 105 is connected with the supernatant water outlet of sedimentation basin 104.
The water inlet end of contact-oxidation pool 106 is connected with the water outlet of hydrolysis acidification pool 105.
The water outlet of the water inlet end with contact-oxidation pool 106 in Fenton's reaction pond 107 is connected afterwards.
The water inlet end in shallow air-floatation pond 108 is connected with the water outlet in rear Fenton's reaction pond 107.
The water inlet end in ozone pond 109 is connected with the water outlet in shallow air-floatation pond 108.
Advantageously, the processing unit of the disperse dyestuff waste water further includes air blower 110, the output end of air blower 110 It is connected respectively with light electrolysis tower 102, contact-oxidation pool 106 and rear Fenton's reaction pond 107.
Advantageously, the processing unit of the disperse dyestuff waste water further includes activated carbon adsorption tank 111, activated carbon adsorption tank 111 water inlet end is connected with the water outlet in ozone pond 109.
Advantageously, the pH value in pH conditioning tank 101 is 2.5, and the hydraulic detention time of light electrolysis tower 102 is 45min, preceding sweet smell The hydraulic detention time of reaction tank 103 is 45min, and the hydraulic detention time of hydrolysis acidification pool 105 is 18hr, contact-oxidation pool 106 hydraulic detention time is 13.5hr, and the hydraulic detention time in rear Fenton's reaction pond 107 is 45min.
Advantageously, during the reaction of preceding Fenton's reaction pond, according to 0.5~1ml/lWaste waterHydrogen peroxide is added；The Fenton after described During reaction tank reacts, according to 0.5~1.5ml/lWaste waterHydrogen peroxide is added and according to 1.3~2.6g/lWaste waterFerrous sulfate is added.
That is, using a kind of processing unit progress wastewater treatment of disperse dyestuff waste water according to an embodiment of the present invention When, disperse dyestuff waste water adjusts pH to 2.5 or so in conditioning tank 101, and into light electrolysis tower 102, light electrolysis tower 102 is contacted Time is set as 45min, after be directly entered before Fenton's reaction pond 103, reaction time in preceding Fenton's reaction pond 103 is 45min, 0.5~1ml/l is added in preceding Fenton's reaction pond 103Waste waterHydrogen peroxide reaction.After being precipitated after reaction by inclined-plate clarifying basin 104, Supernatant enters hydrolysis acidification pool 105, and the hydraulic detention time of hydrolysis acidification pool 105 is 18hr, after be directly entered catalytic oxidation Pond 106, the hydraulic detention time of contact-oxidation pool 106 are 13.5hr, carry out Fenton 107 into rear Fenton and react, are separately added into Fenton reagent (hydrogen peroxide and ferrous sulfate), hydrogen peroxide are 0.5~1.5ml/lWaste water, ferrous sulfate is 1.3~2.6g/lWaste water, and After be directly entered shallow air-floatation pond 108, remove SS, ozone pond 109 entered after SS is up to standard and carries out ozone reaction, after ozone reaction COD is up to standard, enters Active carbon adsorption tank 111 afterwards, stablizes water outlet.
After a kind of processing unit of disperse dyestuff waste water according to an embodiment of the present invention carries out wastewater treatment, it is discharged water Matter：COD=50~100mg/l, NH-N=2~5mg/l, SS < 30mg/l；Coloration=5~10 times.
A kind for the treatment of process of disperse dyestuff waste water according to an embodiment of the present invention, includes the following steps：
Step 1：The pH value of waste water is adjusted to acidity.Advantageously, the pH value of step 1 is 2.5.
Step 2：The waste water that step 1 processing obtains is introduced into light electrolysis tower and stopped for the first predetermined time.Advantageously, described First predetermined time was 45min.
Step 3：Fenton's reaction pond and the second predetermined time of stop before the waste water that step 2 processing obtains is introduced.Advantageously, Second predetermined time is 45min.It advantageously, in step 3, can be according to 0.5~1ml/lWaste waterHydrogen peroxide is added.
Step 4：The waste water that step 3 processing obtains is introduced into sedimentation basin to obtain supernatant.
Step 5, the supernatant that step 4 processing obtains is introduced into hydrolysis acidification pool and stops the third predetermined time.Described Three predetermined times were 18hr.
Step 6, the waste water that step 5 processing obtains is introduced into contact-oxidation pool and stopped for the 4th predetermined time.Described 4th Predetermined time is 13.5hr.
Step 7, Fenton's reaction pond and the 5th predetermined time of stop after the waste water that step 6 processing obtains being introduced.Described Five predetermined times were 45min.Advantageously, in step 7, according to 0.5~1.5ml/lWaste waterHydrogen peroxide is added and according to 1.3~2.6g/ lWaste waterFerrous sulfate is added.
Step 8, the waste water that step 7 processing obtains is introduced into shallow air-floatation pond.
Step 9, the waste water that step 8 processing obtains is introduced into ozone pond and carries out oxidation reaction.
Advantageously, a kind for the treatment of process of disperse dyestuff waste water further includes respectively to the light electrolysis tower, described The step of contact-oxidation pool and the rear Fenton's reaction pond carry out air blast.
Advantageously, a kind for the treatment of process of disperse dyestuff waste water further includes step 10, and step 9 processing is obtained Waste water introduces activated carbon adsorption tank and carries out adsorption reaction.
In other words, a kind for the treatment of process of disperse dyestuff waste water according to an embodiment of the present invention, disperse dyestuff waste water exist PH is adjusted to 2.5 or so in conditioning tank 101, into light electrolysis tower 102,102 time of contact of light electrolysis tower is set as 45min, After be directly entered before Fenton's reaction pond 103, reaction time in preceding Fenton's reaction pond 103 is 45min, in preceding Fenton's reaction pond 103 0.5~1ml/l of middle additionWaste waterHydrogen peroxide reaction.After being precipitated after reaction by inclined-plate clarifying basin 104, supernatant enters hydrolysis acid Change pond 105, the hydraulic detention time of hydrolysis acidification pool 105 is 18hr, after be directly entered contact-oxidation pool 106, contact-oxidation pool 106 hydraulic detention time is 13.5hr, carries out Fenton 107 into rear Fenton and reacts, is separately added into Fenton reagent, hydrogen peroxide is 0.5~1.5ml/lWaste water, ferrous sulfate is 1.3~2.6g/lWaste water, it is then directly entered shallow air-floatation pond 108, removes SS, SS reaches Enter ozone pond 109 after mark and carry out ozone reaction, COD is up to standard after ozone reaction, enters Active carbon adsorption tank 111 afterwards, stablizes and Water.
After a kind for the treatment of process of disperse dyestuff waste water according to an embodiment of the present invention carries out wastewater treatment, it is discharged water Matter：COD=50~100mg/l, NH-N=2~5mg/l, SS < 30mg/l；Coloration=5~10 times.
The processing unit and treatment process of disperse dyestuff waste water according to an embodiment of the present invention have the advantages that：
1) front end controls the treatment effeciency of light electrolysis and Fenton as far as possible, biochemical treatment effeciency is improved, to reduce operation Cost.
2) in relative motion, the lesser situation of civil engineering cost, sewage treatment can be reached in line standard or industrial reuse Water quality standard.
3) sludge of chemical precipitation is due to being rich in macromolecule organic, and has a large amount of inorganic matters (such as molysite), passes through filters pressing It burns after machine, the mineral after burning can be used as flyash use.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation Example be changed, modify, replacement and variant, each fall within protection scope of the present invention.

Claims (10)

1. a kind of processing unit of disperse dyestuff waste water, which is characterized in that including：
PH conditioning tank；
Light electrolysis tower, the water inlet end of the light electrolysis tower are connected with the water outlet of the pH conditioning tank；
The water inlet end in preceding Fenton's reaction pond, the preceding Fenton's reaction pond is connected with the water outlet of the light electrolysis tower；
Sedimentation basin, the water inlet end of the sedimentation basin are connected with the water outlet in the preceding Fenton's reaction pond；
Hydrolysis acidification pool, the water inlet end of the hydrolysis acidification pool are connected with the supernatant water outlet of the sedimentation basin；
Contact-oxidation pool, the water inlet end of the contact-oxidation pool are connected with the water outlet of the hydrolysis acidification pool；
The water inlet end in Fenton's reaction pond afterwards, the rear Fenton's reaction pond is connected with the water outlet of the contact-oxidation pool；
Shallow air-floatation pond, the water inlet end in the shallow air-floatation pond are connected with the water outlet in the rear Fenton's reaction pond；
Ozone pond, the water inlet end in the ozone pond are connected with the water outlet in the shallow air-floatation pond.
2. the processing unit of disperse dyestuff waste water according to claim 1, which is characterized in that it further include air blower, it is described The output end of air blower is connected with the light electrolysis tower, the contact-oxidation pool and the rear Fenton's reaction pond respectively.
3. the processing unit of disperse dyestuff waste water according to claim 1, which is characterized in that further include activated carbon adsorption Pond, the water inlet end of the activated carbon adsorption tank are connected with the water outlet in the ozone pond.
4. the processing unit of disperse dyestuff waste water according to claim 1, which is characterized in that the pH in the pH conditioning tank Value is 2.5, and the hydraulic detention time of the light electrolysis tower is 45min, and the hydraulic detention time in the preceding Fenton's reaction pond is The hydraulic detention time of 45min, the hydrolysis acidification pool are 18hr, and the hydraulic detention time of the contact-oxidation pool is The hydraulic detention time of 13.5hr, the rear Fenton's reaction pond are 45min.
5. the processing unit of disperse dyestuff waste water according to claim 4, which is characterized in that reacted in preceding Fenton's reaction pond Period, according to 0.5~1ml/lWaste waterHydrogen peroxide is added；During the rear Fenton's reaction pond reaction, according to 0.5~1.5ml/lWaste water Hydrogen peroxide is added and according to 1.3~2.6g/lWaste waterFerrous sulfate is added.
6. a kind for the treatment of process of disperse dyestuff waste water, which is characterized in that include the following steps：
Step 1：The pH value of waste water is adjusted to acidity；
Step 2：The waste water that step 1 processing obtains is introduced into light electrolysis tower and stopped for the first predetermined time；
Step 3：Fenton's reaction pond and the second predetermined time of stop before the waste water that step 2 processing obtains is introduced；
Step 4：The waste water that step 3 processing obtains is introduced into sedimentation basin to obtain supernatant；
Step 5, the supernatant that step 4 processing obtains is introduced into hydrolysis acidification pool and stops the third predetermined time；
Step 6, the waste water that step 5 processing obtains is introduced into contact-oxidation pool and stopped for the 4th predetermined time；
Step 7, Fenton's reaction pond and the 5th predetermined time of stop after the waste water that step 6 processing obtains being introduced；
Step 8, the waste water that step 7 processing obtains is introduced into shallow air-floatation pond；
Step 9, the waste water that step 8 processing obtains is introduced into ozone pond and carries out oxidation reaction.
7. a kind for the treatment of process of disperse dyestuff waste water according to claim 6, which is characterized in that further include respectively to institute State the step of light electrolysis tower, the contact-oxidation pool and the rear Fenton's reaction pond carry out air blast.
8. a kind for the treatment of process of disperse dyestuff waste water according to claim 6, which is characterized in that it further include step 10, The waste water that step 9 processing obtains is introduced into activated carbon adsorption tank and carries out adsorption reaction.
9. the treatment process of disperse dyestuff waste water according to claim 6, which is characterized in that the pH value of step 1 is 2.5, First predetermined time is 45min, and second predetermined time is 45min, and the third predetermined time is 18hr, described the Four predetermined times were 13.5hr, and the 5th predetermined time is 45min.
10. the treatment process of disperse dyestuff waste water according to claim 9, which is characterized in that in step 3, according to 0.5~ 1ml/lWaste waterHydrogen peroxide is added；In step 7, according to 0.5~1.5ml/lWaste waterHydrogen peroxide is added and according to 1.3~2.6g/lWaste waterIt is added Ferrous sulfate.
CN201811017887.XA 2018-09-03 2018-09-03 The processing unit and treatment process of disperse dyestuff waste water Pending CN108911432A (en)

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