CN109020070A - The processing method of anti-oxidant agent production waste water - Google Patents
The processing method of anti-oxidant agent production waste water Download PDFInfo
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- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- 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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- 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
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Abstract
The invention belongs to field of waste water treatment, specifically disclose a kind of processing method of anti-oxidant agent production waste water, including acid out processing, flocculation sedimentation processing, electrocatalytic oxidation processing, anaerobic reaction processing, hydrolysis acidification/Aerobic Process for Treatment；The process employs above-mentioned 5 steps to handle anti-oxidant agent production waste water, and 5 steps carry out in order, and the cooperation that influences each other between each step, are more suitable for the processing of anti-oxidant agent production waste water.
Description
Technical field
The present invention relates to technical field of waste water processing, are specifically related to a kind of processing method of anti-oxidant agent production waste water.
Background technique
Antioxidant is that one kind can delay or inhibit polymer oxidation, aging and the substance prolonged its service life,
The raffinate and equipment cleaning water that non-recovery is worth in production process can be discharged in the form of waste water, and such waste water contains a large amount of virtues
Fragrant race and heterocycle substance, and COD is up to 20000~50000 mg/L, is that a kind of pollutant concentration is high, bio-refractory useless
Water.It currently yet there are no the processing method that systematicness solves anti-oxidant agent production waste water, China Patent Publication No. CN 107572692
A discloses a kind of method and device thereof for removing antioxidant in sewage, is a type Fenton catalytic oxidation technologies and flocculation sedimentation
Group technology, the raw water COD of processing is low, and is not specific to anti-oxidant agent production waste water, but handle other industry contain
The waste water of antioxidant.
Once antioxygen agent production waste water outlet will cause Dissolved Oxygen in Water content and decline to a great extent, keep organism in water dead, water
Body is black smelly.In addition, aromatic series and heterocycle substance have carcinogenic, teratogenesis, mutagenicity, and it is difficult to degrade, to ecological environment
Permanent harm will be generated with the mankind.Therefore it is badly in need of that a kind of simple process is efficient, the economically viable anti-oxidant agent production waste water of cost
Processing method.
Summary of the invention
To solve defect in the prior art, the present invention provides a kind of processing method of anti-oxidant agent production waste water, packets
Include acid out processing, flocculation sedimentation processing, electrocatalytic oxidation processing, anaerobic reaction processing, hydrolysis acidification/Aerobic Process for Treatment；This method
Anti-oxidant agent production waste water is handled using above-mentioned 5 steps, 5 steps carry out in order, and between each step mutually
Cooperation is influenced, the processing of anti-oxidant agent production waste water is more suitable for.
Specifically, the present invention provides a kind of processing methods of anti-oxidant agent production waste water, which is characterized in that including following
Step:
(1) acid out is handled: the use of the pH that acid solution adjusts anti-oxidant agent production waste water being 3.0~3.5；
(2) flocculation sedimentation is handled: using molysite inorganic flocculating agent and polyacrylamide, to step (1), treated, and waste water is wadded a quilt with cotton
Solidifying precipitation process；
(3) electrocatalytic oxidation is handled: using having the electrode plate of catalytic activity to carry out electro-catalysis to step (2) treated waste water
Oxidation processes；The processing time is 2~4 h；
(4) anaerobic reaction is handled: between the pH value of set-up procedure (3) processed waste water to 6.5 ~ 7.5, then using anaerobic reactor
Carry out anaerobic reaction processing；
(5) hydrolysis acidification/Aerobic Process for Treatment: to step (4), treated that acidification/Aerobic Process for Treatment is hydrolyzed in waste water.
Method of the present invention has used 5 steps to handle anti-oxidant agent production waste water, and 5 steps carry out in order, and
And the cooperation that influences each other between each step, it is more suitable for the processing of anti-oxidant agent production waste water.The first step, in flocculation sedimentation processing
Before, the raw wastewater that antioxidant produces is promoted to acid out pond, adjusts raw wastewater pH value to 3.0~5.0 using acid solution, can first by
Macromolecule organic acid substance in waste water is precipitated, which can be completed by pH automatic control system；Second step, at acid out
The waste water managed continues flocculation sedimentation processing: firstly, treated that waste water enters the first reaction tank of flocculation sedimentation for acid out, throwing
Enter molysite inorganic flocculating agent to be reacted, then, which enters back into the second reaction tank of flocculation sedimentation, add polyacrylamide into
Row reaction, is precipitated finally, the waste water enters sedimentation basin；The setting of flocculation sedimentation processing step carries out after acid out processing, high
The suspended matter eliminated in waste water, the colloidal substance of effect；Third step, flocculation sedimentation treated waste water is using at electrocatalytic oxidation
It manages, the water outlet in second step in sedimentation basin carries out electrocatalytic oxidation processing, using the pole plate with catalytic activity, further aoxidizes
Organic matter in degrading waste water, 2~4h of reaction time, which is arranged after flocculation sedimentation, so that the reaction time greatly shortens,
The aromatic series and heterocycle type organic in waste water are degraded, and is translated into small molecule, degradable substance, the step is also not
Additionally to add medicament, full-automation operation；Which reduces the toxicity of waste water and COD, biodegradability is improved, is also rear
Continuous biochemical treatment provides condition of water quality；4th step further uses anaerobic reaction processing, anaerobic reactor volume to waste water
Load height, impact resistance, without sedimentation basin, excess sludge is few, recyclable biogas energy；5th step, using hydrolysis acidification/aerobic place
Reason, A/O biochemical system can further decrease waste water COD, and remove total nitrogen by nitrification/denitrification, guarantee waste water COD and
Total nitrogen stably reaching standard.This method is combined using five steps, is carried out in sequence, is cooperated, is produced unexpected skill
Art effect, after final wastewater treatment is complete, COD value is within 100 mg/L, and total nitrogen is within 20 mg/L；Preferential scheme
In, COD value has reached 87.4 mg/L, and total nitrogen has reached 5.6 mg/L.
The present invention be directed to the most suitable combination that the characteristic of anti-oxidant agent production waste water is selected, acid out flocculation is electro-catalysis
Condition of water quality is created, electro-catalysis reduction wastewater toxicity is that biochemistry creates condition of water quality, eventually by biochemistry guarantee waste water COD and always
The stably reaching standard of nitrogen.
In some embodiments, the acid solution is sulfuric acid, hydrochloric acid, acetic acid or their arbitrary combinations；The acid out processing
Time be 20~30 min.
Waste water is handled as acid solution come acid out using the combination of one or more of sulfuric acid, hydrochloric acid, acetic acid, itself is to ring
Border is of reduced contamination, and 20~30 min of time of processing is most suitable, and sour selection and the cooperation of time are more advantageous to subsequent a series of
Waste water treatment step.
In some embodiments, the molysite inorganic flocculating agent is iron chloride, ferric sulfate or bodied ferric sulfate；Wherein, it walks
Suddenly inorganic 10~20 min of flocculation treatment in (2)；10~20 min of polyacrylamide flocculation treatment in step (2).
Use molysite inorganic flocculating agent for iron chloride, ferric sulfate or bodied ferric sulfate, cooperation processing 10~20 min of time,
Polyacrylamide flocculation treatment, cooperation processing 10~20 min of time, the flocculation sedimentation effect being optimal are used again.
In some embodiments, the usage amount of the molysite inorganic flocculating agent is 100~200 mg/L；The polyacrylamide
The usage amount of amine is 2 ~ 5 mg/L.
According to the characteristics of anti-oxidant agent production waste water and the acid out disposition of previous step, 100~200 have been selected
The molysite inorganic flocculating agent of mg/L, and selected polyacrylamide for organic polymer coargulator, reach preferable technology effect
Fruit.
In some embodiments, the anode of the electrode plate is one of graphite electrode or coating ruthenium, iridium, lead, tin, antimony
Or the titanium-based dimensionally stable electrode of several metal oxides；The cathode of the electrode plate is Ti electrode, stainless steel electrode or graphite
Electrode.
Different electrode sheet materials, the efficiency and effect of electrocatalytic oxidation are also different, and the requirement of different waste components
Also different.Present inventor has studied the case where first two steps processed waste water, and property to a variety of electrode sheet materials and answers
With being investigated, specifically select anode for one or more of graphite electrode or coating ruthenium, iridium, lead, tin, antimony metal oxygen
The titanium-based dimensionally stable electrode of compound, cathode are that the electrode plate of Ti electrode, stainless steel electrode or graphite electrode carries out electrocatalytic oxidation
Change processing, has reached unexpected technical effect.
In some embodiments, in step (3), the current density of the electrode plate is 20~60 mA/cm2；Wherein,
When influent COD is lower than 10000 mg/L, the processing time of step (3) is 2 h；When influent COD is in 10000~20000 mg/L
Between when, processing time of step (3) is 3 h；When influent concentration is higher than 20000 mg/L, the processing time of step (3) is 4
h。
In terms of electrode plate current density, correlative study is had also been made in present inventor, in order to reach lowest energy consumption and most
Efficient electrocatalysis oxidation reaction, creative proposition select different according to COD different in anti-oxidant agent production waste water
The time is handled, and the suitable concentration corresponding processing time is had found by further research, carries out classification processing.
In some embodiments, the anaerobic reactor is upflow anaerobic sludge blanket process UASB, anaerobic baffle plate reacts
Device ABR, expanded granular sludge bed reactor reactor EGSB or internal-circulation anaerobic reactor IC.
In some embodiments, the sludge concentration of the anaerobic reactor controls the volumetric loading 2 more than 30 g VSS/L
~4 kg COD/(m3D).
Due to the particularity of anti-oxidant agent production waste water, further anaerobic reaction processing is carried out to it and is necessary,
The control of its sludge concentration need to be more than 30 g VSS/L, and volumetric loading is 2~4 kg COD/(m3It d) is preferred embodiment.
In some embodiments, the hydrolysis acidification section residence time in the hydrolysis acidification/Aerobic Process for Treatment is 6~8 h, good
The oxygen section residence time is 18~24 h, and return current ratio of the mixed liquid is 100~200%.
Hydrolysis acidification/aerobic process (A/O) is a common method for handling waste water, and the application is raw according to antioxidant
The case where producing waste water, and former treated situations are combined, select the hydrolysis acidification section residence time for 6~8 h, it is aerobic
The section residence time is 18~24 h, and return current ratio of the mixed liquid is 100~200%, achieves better water treatment effect.
In some embodiments, anti-oxidant agent production waste water of the present invention processing method the following steps are included:
(1) acid out is handled: being adjusted antioxidant using acid solution and is produced wastewater pH 3.0~3.5；The acid solution be sulfuric acid, hydrochloric acid,
Acetic acid or their arbitrary combinations；Acid out handles the time as 20~30 min；
(2) flocculation sedimentation is handled: using molysite inorganic flocculating agent and polyacrylamide, to step (1), treated, and waste water is wadded a quilt with cotton
Solidifying precipitation process；The molysite inorganic flocculating agent is iron chloride, ferric sulfate or bodied ferric sulfate；In the flocculation sedimentation processing
Inorganic 10~20 min of flocculation treatment；10~20 min of polyacrylamide flocculation treatment in the flocculation sedimentation processing；It is described
The usage amount of molysite inorganic flocculating agent is 100~200 mg/L；The usage amount of the polyacrylamide is 2 ~ 5 mg/L；
(3) electrocatalytic oxidation is handled: using having the electrode plate of catalytic activity to carry out electro-catalysis to step (2) treated waste water
Oxidation processes；The anode material of the electrode plate is one or more of graphite electrode or coating ruthenium, iridium, lead, tin, antimony metal
The titanium-based dimensionally stable electrode of oxide；The cathode of the electrode plate is Ti electrode, stainless steel electrode or graphite electrode；The electricity
The current density of pole plate is 20~60 mA/cm2；When influent COD is lower than 10000 mg/L, when the electrocatalytic oxidation is handled
Between be 2 h；When influent COD is between 10000~20000 mg/L, the electrocatalytic oxidation processing time is 3 h；Work as water inlet
When concentration is higher than 20000 mg/L, the electrocatalytic oxidation processing time is 4 h；
(4) anaerobic reaction is handled: set-up procedure (3) treated waste water pH value to 6.5 ~ 7.5, then using anaerobic reactor into
The processing of row anaerobic reaction；The anaerobic reactor is upflow anaerobic sludge blanket process UASB, anaerobic baffled reactor ABR, detests
Oxygen granular sludge expansion bed reactor EGSB or internal-circulation anaerobic reactor IC；The sludge concentration control of the anaerobic reactor exists
30 g VSS/L or more, 2~4 kg COD/(m of volumetric loading3D)；
(5) hydrolysis acidification/Aerobic Process for Treatment: to step (4), treated that acidification/Aerobic Process for Treatment is hydrolyzed in waste water；The hydrolysis
The hydrolysis acidification section residence time in acidification/Aerobic Process for Treatment is 6~8 h, and the aerobic section residence time is 18~24 h, and mixed liquor returns
Stream is than being 100~200%.
Term is explained
Used according to the present invention, term " molysite inorganic flocculating agent " refers to the flocculant being made of molysite inorganic component, wadding
Solidifying agent is mainly to increase the collision of coagulation solid, forms its hydrolysate agglomeration, bridge flocculation can settling or may filter that
Flocculate.
According to the present invention used in, term " electrode plate for having catalytic activity " refer to electrode plate can catalysis oxidation it is anti-
It answers.
Used according to the present invention, term " anaerobic reaction " refers to that waste water carries out reaction treatment in anaerobic reactor.
Used according to the present invention, term " electrocatalytic oxidation " electro-catalytic oxidation technology is the effect in extra electric field
Under, the pole plate with catalysis nearby generates the intermediate of high oxidation activity, and oxidation operation can be degraded.
Used according to the present invention, term " hydrolysis acidification/aerobic " is abbreviated as A/O, and A indicates hydrolysis acidification stage, O table
Show aerobic stage.
Used according to the present invention, term " COD " indicates COD, is chemically to measure to need in water sample
The amount for the reducing substances being oxidized.It, can be by the object of strong oxidizer oxidation in waste water, wastewater treatment plant effluent and contaminated water
The oxygen equivalent of matter (generally organic matter).It is an organic pollution parameter that is important and can comparatively fast measuring.
According to the present invention used in, term " return current ratio of the mixed liquid " refer to aeration tank mixed liquor be back to water inlet with into
Water enters hydrolysis acidification pool reaction together, and return current ratio of the mixed liquid is mixed liquor flow-rate ratio flow of inlet water.
" polyacrylamide " of the present invention is not limited to certain specific ionic, is anion in some embodiments
Type；It is cationic in some embodiments；It is non-ionic in some embodiments.If desired, can be suitable ion
The mixture of type.
Detailed description of the invention
Fig. 1 is the flow diagram of antioxidant producing wastewater treatment in the present invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, the application's
Illustrative embodiments and their description are not constituted an undue limitation on the present application for explaining the application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, belong to protection scope of the present invention.In addition, invention described below is not
It can be combined with each other as long as they do not conflict with each other with technical characteristic involved in embodiment.
Embodiment 1
Present embodiments provide a kind of processing method of anti-oxidant agent production waste water, comprising the following steps:
(1) the boosted pump of waste water in raw water collection pond enters acid precipitation reaction pond, adds sulfuric acid by pH automatic control system, controls
PH value 5.0 processed reacts 30 min；
(2) waste water by step (1) processing is introduced into the first pond of flocculation reaction, adds the bodied ferric sulfate of 100 mg/L, instead
20 min are answered, the water outlet of the first reaction tank enters the second pond of flocculation reaction, adds 2 mg/L of polyacrylamide, 20 min are reacted, the
The water outlet of two reaction tanks enters sedimentation basin, and after precipitating, water outlet enters electrocatalytic oxidation equipment；
(3) electrocatalysis oxidation reaction makees anode using the titanium-based dimensionally stable electrode of coating stibium doping stannic oxide, and Ti electrode is made
Cathode is 40 mA/cm in current density2Under conditions of react 2 h；
(4) step (3) water outlet adjustment pH value is to entering UASB reactor after 7.2, sludge concentration control in 30 gVSS/L or more,
2 kg COD/(m of volumetric loading3D), water outlet enters A/O biochemical system after reaction；
(5) advanced treating, hydrolysis acidification section are done in hydrolysis acidification/aerobic (A/O) process section by step (4) treated waste water
6 h of residence time, 18 h of aerobic section residence time, return current ratio of the mixed liquid 100%.
Waste water eventually enters into secondary settling tank after hydrolysis acidification/aerobic (A/O) processing, and secondary clarifier effluent can be directly up to standard
Discharge.
By each processing method, treated that waste water quality testing result is as follows: (raw water is untreated waste water)
| Project | COD COD(mg/L) | Total nitrogen (mg/L) |
| Raw wastewater | 26892.3 | 125.8 |
| Acid out | 15954.9 | 117.2 |
| Flocculation sedimentation | 12167.8 | 105.3 |
| Electrocatalytic oxidation | 2791.5 | 32.1 |
| Anaerobism | 549.4 | 18.4 |
| A/O | 87.4 | 5.6 |
Conclusion: the anti-oxidant agent production waste water handled through the above steps, COD have reached 87.4 mg/L, total nitrogen 5.6
Mg/L, the result obtained well below prior art other methods.
Embodiment 2
Present embodiments provide a kind of processing method of anti-oxidant agent production waste water, comprising the following steps:
(1) the boosted pump of waste water in raw water collection pond enters acid precipitation reaction pond, adds sulfuric acid by pH automatic control system, controls
PH value 5.0 processed reacts 30 min；
(2) waste water by step (1) processing is introduced into the first pond of flocculation reaction, adds the bodied ferric sulfate of 150 mg/L, instead
20 min are answered, the water outlet of the first reaction tank enters the second pond of flocculation reaction, adds 4 mg/L of polyacrylamide, 20 min are reacted, the
The water outlet of two reaction tanks enters sedimentation basin, and after precipitating, water outlet enters electrocatalytic oxidation equipment；
(3) anode, Ti electrode are made using the titanium-based dimensionally stable electrode of coating ruthenic oxide, iridium dioxide mixed-metal oxides
Make cathode, is 60 mA/cm in current density2Under conditions of react 4 h；
(4) step (3) water outlet adjustment pH value is to entering UASB reactor after 6.8, sludge concentration control in 30 gVSS/L or more,
2.5 kg COD/(m of volumetric loading3D), water outlet enters A/O biochemical system after reaction；
(5) advanced treating, hydrolysis acidification section are done in hydrolysis acidification/aerobic (A/O) process section by step (4) treated waste water
8 h of residence time, 24 h of aerobic section residence time, return current ratio of the mixed liquid 100%.
Waste water enters secondary settling tank after hydrolysis acidification/aerobic (A/O) processing, and secondary clarifier effluent can direct qualified discharge.
By each processing method, treated that waste water quality testing result is as follows: (raw water is untreated waste water)
| Project | COD COD(mg/L) | Total nitrogen (mg/L) |
| Raw wastewater | 43892.3 | 265.8 |
| Acid out | 28514.2 | 247.1 |
| Flocculation sedimentation | 21614.8 | 232.9 |
| Electrocatalytic oxidation | 2928.5 | 53.7 |
| Anaerobism | 632.3 | 31.5 |
| A/O | 92.6 | 17.4 |
Conclusion: the anti-oxidant agent production waste water handled through the above steps, COD have reached 92.6 mg/L, total nitrogen 17.4
Mg/L, the result obtained well below prior art other methods.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.This
Other modifications or equivalent replacement that field those of ordinary skill makes technical solution of the present invention, without departing from skill of the present invention
The spirit and scope of art scheme should all cover within scope of the presently claimed invention.
Claims (10)
1. a kind of processing method of anti-oxidant agent production waste water, which comprises the following steps:
(1) acid out is handled: the use of the pH that acid solution adjusts anti-oxidant agent production waste water being 3.0~3.5；
(2) flocculation sedimentation is handled: using molysite inorganic flocculating agent and polyacrylamide, to step (1), treated, and waste water is wadded a quilt with cotton
Solidifying precipitation process；
(3) electrocatalytic oxidation is handled: using having the electrode plate of catalytic activity to carry out electro-catalysis to step (2) treated waste water
Oxidation processes；The processing time is 2~4 h；
(4) anaerobic reaction is handled: between the pH value of set-up procedure (3) processed waste water to 6.5 ~ 7.5, then using anaerobic reactor
Carry out anaerobic reaction processing；
(5) hydrolysis acidification/Aerobic Process for Treatment: to step (4), treated that acidification/Aerobic Process for Treatment is hydrolyzed in waste water.
2. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the acid solution is sulphur
Acid, hydrochloric acid, acetic acid or their arbitrary combinations；The time of the acid out processing is 20~30min.
3. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the inorganic wadding of molysite
Solidifying agent is iron chloride, ferric sulfate or bodied ferric sulfate；Wherein, inorganic 10~20 min of flocculation treatment in step (2)；Step (2)
Middle 10~20 min of polyacrylamide flocculation treatment.
4. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the inorganic wadding of molysite
The usage amount of solidifying agent is 100~200 mg/L；The usage amount of the polyacrylamide is 2 ~ 5 mg/L.
5. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the sun of the electrode plate
The extremely titanium-based dimensionally stable electrode of one or more of graphite electrode or coating ruthenium, iridium, lead, tin, antimony metal oxide；Institute
The cathode for stating electrode plate is Ti electrode, stainless steel electrode or graphite electrode.
6. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that in step (3), institute
The current density for stating electrode plate is 20~60 mA/cm2；Wherein, when influent COD is lower than 10000 mg/L, the place of step (3)
The reason time is 2 h；When influent COD is between 10000~20000 mg/L, the processing time of step (3) is 3 h；Work as water inlet
When concentration is higher than 20000 mg/L, the processing time of step (3) is 4 h.
7. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the anaerobic reaction
Device is upflow anaerobic sludge blanket process UASB, anaerobic baffled reactor ABR, expanded granular sludge bed reactor reactor EGSB or interior
Circulation anaerobic reactor IC.
8. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the anaerobic reactor
Sludge concentration control more than 30 g VSS/L, 2~4 kg COD/(m of volumetric loading3D).
9. the processing method of anti-oxidant agent production waste water according to claim 1, which is characterized in that the hydrolysis acidification/
The hydrolysis acidification section residence time in Aerobic Process for Treatment is 6~8 h, and the aerobic section residence time is 18~24 h, return current ratio of the mixed liquid
It is 100~200%.
10. the processing method of -9 described in any item anti-oxidant agent production waste waters according to claim 1, which is characterized in that including
Following steps:
(1) acid out is handled: being adjusted antioxidant using acid solution and is produced wastewater pH 3.0~3.5；The acid solution be sulfuric acid, hydrochloric acid,
Acetic acid or their arbitrary combinations；Acid out handles the time as 20~30 min；
(2) flocculation sedimentation is handled: using molysite inorganic flocculating agent and polyacrylamide, to step (1), treated, and waste water is wadded a quilt with cotton
Solidifying precipitation process；The molysite inorganic flocculating agent is iron chloride, ferric sulfate or bodied ferric sulfate；In the flocculation sedimentation processing
Inorganic 10~20 min of flocculation treatment；10~20 min of polyacrylamide flocculation treatment in the flocculation sedimentation processing；It is described
The usage amount of inorganic flocculating agent is 100~200 mg/L；The usage amount of the polyacrylamide is 2 ~ 5 mg/L；
(3) electrocatalytic oxidation is handled: using having the electrode plate of catalytic activity to carry out electro-catalysis to step (2) treated waste water
Oxidation processes；The anode material of the electrode plate is one or more of graphite electrode or coating ruthenium, iridium, lead, tin, antimony metal
The titanium-based dimensionally stable electrode of oxide；The cathode of the electrode plate is Ti electrode, stainless steel electrode or graphite electrode；The electricity
The current density of pole plate is 20~60 mA/cm2；When influent COD is lower than 10000 mg/L, when the electrocatalytic oxidation is handled
Between be 2 h；When influent COD is between 10000~20000 mg/L, the electrocatalytic oxidation processing time is 3 h；Work as water inlet
When concentration is higher than 20000 mg/L, the electrocatalytic oxidation processing time is 4 h；
(4) anaerobic reaction is handled: between set-up procedure (3) treated pH value of waste water to 6.5 ~ 7.5, then using anaerobic reactor
Carry out anaerobic reaction processing；The anaerobic reactor be upflow anaerobic sludge blanket process UASB, anaerobic baffled reactor ABR,
Expanded granular sludge bed reactor reactor EGSB or internal-circulation anaerobic reactor IC；The sludge concentration of the anaerobic reactor controls
More than 30 g VSS/L, 2~4 kg COD/(m of volumetric loading3D)；
(5) hydrolysis acidification/Aerobic Process for Treatment: to step (4), treated that acidification/Aerobic Process for Treatment is hydrolyzed in waste water；The hydrolysis
The hydrolysis acidification section residence time in acidification/Aerobic Process for Treatment is 6~8 h, and the aerobic section residence time is 18~24 h, and mixed liquor returns
Stream is than being 100~200%.
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