CN106477786A - A kind of composite intensified light electrolysis simulation process method - Google Patents
A kind of composite intensified light electrolysis simulation process method Download PDFInfo
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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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- C02F1/52—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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- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C02F2101/322—Volatile compounds, e.g. benzene
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- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
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Abstract
The present invention relates to a kind of composite intensified light electrolysis simulation process method, acid adding, hydrogen peroxide and copper ion successively in the pharmacy waste water containing phenyl ring and simulated wastewater respectively first, and mix homogeneously；Then it is passed through unidirectional current in waste water, and adds ferrum carbon ball, after fully reacting, add adjusting PH with base, and add PAM and PAC to accelerate wastewater sedimentation, after the completion of precipitation, obtain supernatant.It is an advantage of the current invention that：Composite intensified light electrolysis simulation process method with the addition of hydrogen peroxide simultaneously in waste water on the basis of existing technology and is energized；While not only cleverly increased iron-carbon micro-electrolysis treatment effeciency, the effect to hydrogen peroxide during using the power on, produce more hydroxyl radical free radicals；Further, since ferroelectricity light electrolysis can produce substantial amounts of ferrous ion, it is correspondingly formed electric Fenton mechanism；In the presence of multiple recombination mechanisms, the probability of phenyl ring open loop scission of link greatly increases, thus improve the clearance to benzene homologues.
Description
Technical field
The present invention relates to a kind of micro-electrolysis treatment method, particularly to a kind of composite intensified light electrolysis simulation process side
Method.
Background technology
, during producing the medicines such as fluorine urine pyridine, workshop must be using toluene as the solvent of ring-closure reaction for pharmacy corporation
Higher yield could be obtained, and then can produce with the benzene homologues waste water based on toluene.In order to ensure what subsequent biochemical was processed
Stable operation, needs enhancing degradation benzene homologues, to mitigate subsequent biochemical burden it is ensured that biochemical system runs well.
Benzene homologues refer to containing the volatile monocyclic aromatic of a class including benzene, toluene, ethylbenzene, dimethylbenzene etc.
Compound.Because having " three cause benefits ", benzene homologues are defined as strong carcinogen by World Health Organization (WHO), have been put into excellent in China's water
First control pollutant blacklist, the waste water of species containing benzene series need to strictly control up to standard after could discharge.As industrial solvent and production
Raw material, benzene homologues are widely used in chemical industry such as pharmaceutical industry, create great environmental toxicity in use.This
Outward, benzene homologues may produce certain impact to Waste Water Treatment, and the benzene homologues of water middle and high concentration can be in biochemical system
Microorganism produces certain bio-toxicity, frequently results in low, sludge decomposition of wastewater degradation rate etc. extremely, and then affects wastewater treatment
The stability of system operation.Therefore, when processing waste water containing benzene homologues, pretreatment stage should be realized as far as possible to waste water containing benzene homologues
Dual treatment remerges other waste water integrated treatments.
In industry, " iron-carbon micro-electrolysis-Fenton process-biochemical process " are the exemplary process technique of pharmacy waste water at present, typically
Its treatment effeciency, COD are judged by COD clearance and benzene homologues clearance（COD）It is under certain condition, adopt
Certain strong oxidizer processes the oxidant content being consumed during water sample, and the computing formula of COD clearance is：
But traditional processing method is low to benzene homologues reaction efficiency；Only react in acid condition, the reaction under alkalescence condition
Speed is then greatly reduced, and leads to the range of its pH less, there is significant limitation；In addition Patent No.
201360482321.5 patent of invention in just refer to a kind of reverse osmosis thick water treatment method, comprise the following steps：Adjust anti-
The pH to 2.0～4.0 of infiltration concentrated water, catalytic and oxidative electrolysis technology；Catalytic and oxidative electrolysis technology water outlet is in the ferrum of filling ferrum and carbon sintering
There is redox reaction in the electrolysis reactor of carbon filler；Then plus hydrogen peroxide, oxidized decomposition further；Adjust pH to
6.0～8.0, plus flocculant flocculation sediment；Supernatant after flocculation sediment enters aeration and biological pond, adds co-substrate, biological fall
Solution.By COD poor for the biodegradability obtaining through reverse osmosiss Treatment for Reuse after biochemical treatment is up to standard in 70～200mg/L
Reverse osmosis concentrated water process is to below 50mg/L, thus meeting most stringent of place discharge standard.This kind of processing method passes through dioxygen
The strong oxidation of water carries out oxidation Decomposition although accelerating W-response speed to a certain extent, but hydrogen peroxide itself oxygen
Change the speed decomposed still relatively slow, and affected by pH larger, work efficiency still has the space being lifted further；The therefore present invention
Have developed that a kind of pH is applied widely, reaction rate fast and the composite intensified light electrolysis simulation process method of efficiency high, through inspection
Rope, does not find the same or analogous technical scheme with the present invention.
Content of the invention
The technical problem to be solved in the present invention be provide that a kind of pH is applied widely, reaction rate fast and efficiency high compound
Type pharmaceutics wastewater simulation process method.
For solving above-mentioned technical problem, the technical scheme is that：A kind of composite intensified light electrolysis simulation process side
Method, its innovative point is：Described processing method is specific as follows：
（1）Choose waste water needed for processing procedure, mainly include the pharmacy waste water containing phenyl ring and simulated wastewater；Described simulated wastewater leads to
Cross the interpolation benzene homologues in pharmacy waste water to obtain, described benzene homologues include benzene, toluene, ethylbenzene, dimethylbenzene and styrene, addition
It is 45～55mg/L；
（2）Adjusting its pH to acid adding in the pharmacy waste water containing phenyl ring and simulated wastewater successively is 2～5, then sequentially adds double
Oxygen water and copper ion, and stirred respectively using stirring rod；
（3）Insert anode titanium plate and cathode titanium plates respectively in pharmacy waste water and simulated wastewater, and in anode titanium plate and cathode titanium
D.C. regulated power supply is set between plate；Then continue to add sintered ferrum carbon ball in pharmacy waste water and simulated wastewater,
The volume of ferrum carbon ball and the ratio of water volume is made to be 1:1, and fully react 120 with waste water in the case of D.C. regulated power supply work
～180min；
（4）After the completion of reaction respectively in pharmacy waste water and simulated wastewater plus alkali adjust pH value be 7～8, and sequentially add PAC and
PAM, after stirring, standing makes wastewater sedimentation, and obtains supernatant.
Further, described step（2）The concentration of middle hydrogen peroxide is 1%～3%, and the concentration of copper ion is 50～100mg/L.
Further, described step（3）The voltage that middle D.C. regulated power supply is passed through be 10V～12V, electric current be 0.01A～
0.1A.
It is an advantage of the current invention that：
（1）Composite intensified light electrolysis simulation process method with the addition of hydrogen peroxide simultaneously on the basis of existing technology in waste water
And be energized；While not only cleverly increased iron-carbon micro-electrolysis treatment effeciency, the effect to hydrogen peroxide during using the power on,
Produce more hydroxyl radical free radicals；Further, since ferroelectricity light electrolysis can produce substantial amounts of ferrous ion, it is correspondingly formed electric Fenton machine
Reason；In the presence of multiple recombination mechanisms, the probability of phenyl ring open loop scission of link greatly increases, thus improve going to benzene homologues
Except rate.
（2）Iron-carbon micro-electrolysis not only work efficiency in acid condition in composite intensified light electrolysis simulation process method
Height, and in galvanization, the pH value of waste water can constantly rise, and assumes neutral or even alkaline state, and now hydrogen peroxide starts
Effect, and the copper ion adding plays catalytic action to the strong oxidizing property of hydrogen peroxide in the state of neutral meta-alkalescence, greatly speeds up
Reaction rate, high working efficiency, simultaneously whole process all can act under conditions of acid and alkalescence, the scope of application of pH
Extensively.
（3）Pharmacy waste water and simulated wastewater is chosen, simulated wastewater is mainly the mixing of pharmacy waste water and benzene homologues during sampling
Thing, because actual pharmacy waste water water quality is not sufficiently stable, obtains simulated wastewater by adding benzene homologues, thus obtaining more accurate
Processing data, determine that this kind of processing method to the clearance of benzene homologues more effectively, therefore could be applied to reality simultaneously
The pharmacy waste water containing benzene homologues in.
（4）Add PAC and PAM before pharmacy waste water and simulated wastewater precipitation, wherein PAC is aluminium polychlorid, be industry
In a kind of flocculation aid of commonly using；PAM is polyacrylamide, can build bridge with the suspended particles being scattered in solution and adsorb, have
Extremely strong flocculation；Both comprehensive uses can improve the settling rate of simulated wastewater, improves work efficiency.
Specific embodiment
Embodiment 1
The invention discloses a kind of composite intensified light electrolysis simulation process method, this processing method is specific as follows：
（1）Choose certain pharmaceutical factory's comprehensive discharge waste water, water quality situation：Without benzene, COD:17000～20000mg/L, B/C are
0.05～0.15, irritant abnormal smells from the patient, wherein B/C are the ratio of BOD and COD；
（2）To in comprehensive discharge waste water acid adding adjust its pH be 2～5, then sequentially add 1%～3% hydrogen peroxide and 50～
The copper ion of 100mg/L, and stirred respectively using stirring rod；
（3）Insertion anode titanium plate and cathode titanium plates in comprehensive discharge waste water, and arrange between anode titanium plate and cathode titanium plates
D.C. regulated power supply, the voltage that this D.C. regulated power supply is passed through is 10V～12V, and electric current is 0.01A～0.1A；Then continue to
Add sintered ferrum carbon ball in comprehensive discharge waste water, make the volume of ferrum carbon ball and the ratio of water volume be 1:1, and in direct current
120～180min is fully reacted with simulated wastewater in the case of regulated power supply work；
（4）Reaction completes in backward comprehensive discharge waste water plus alkali adjusts pH value for 7～8, and sequentially adds PAC and PAM, after stirring
Standing makes simulated wastewater precipitate, and obtains supernatant.
Following table is the relation table with COD clearance for the concentration of copper ion：
The relation table of the voltage that following table is passed through for D.C. regulated power supply and COD clearance：
Following table is the relation table in response time and COD clearance：
The present embodiment, with the comprehensive discharge waste water without benzene for process object, determines copper ion and voltage, wherein copper needed for experiment
, in 0～50mg/L, the clearance of COD is relatively low for the concentration of ion, when between 100～200mg/L, the clearance the comparison of the growth of COD
Gently, and in 50～100mg/L, COD clearance rate of rise is very fast, and close with adding high concentration copper ion clearance.
Copper ion in order to avoid adding excessive concentrations causes secondary pollution, and the concentration therefore selecting copper ion is 50～100mg/L；Electricity
When being pressed in 8～10V, the clearance the comparison of the growth of COD is gentle, and in 12～15V, the clearance of COD declines voltage, and voltage exists
During 10～12V, COD clearance increases comparatively fast, therefore selects voltage to be 10～12V.
Embodiment 2
The invention discloses a kind of composite intensified light electrolysis simulation process method, this processing method is specific as follows：
（1）Choose the pharmacy waste water containing phenyl ring, and be added to benzene homologues and obtain simulated wastewater, described benzene homologues include benzene,
Toluene, ethylbenzene, dimethylbenzene and styrene, addition is 45～55mg/L；
（2）To in simulated wastewater acid adding adjust its pH be 2～5, then sequentially add 1%～3% hydrogen peroxide and 50～
The copper ion of 100mg/L, and stirred respectively using stirring rod；
（3）Insertion anode titanium plate and cathode titanium plates in simulated wastewater, and direct current is set between anode titanium plate and cathode titanium plates
Regulated power supply, the voltage that this D.C. regulated power supply is passed through is 10V～12V, and electric current is 0.01A～0.1A；Then continue to simulation
Add sintered ferrum carbon ball in waste water, make the volume of ferrum carbon ball and the ratio of water volume be 1:1, and in D.C. regulated power supply
120～180min is fully reacted with simulated wastewater in the case of work；
（4）Reaction completes in backward simulated wastewater plus alkali adjusts pH value for 7～8, and sequentially adds PAC and PAM, stands after stirring
So that simulated wastewater is precipitated, and obtain supernatant.
Following table is the relation table in response time and COD clearance：
Following table is the relation table in response time and benzene homologues clearance：
The present embodiment passes through to add benzene homologues acquisition simulated wastewater in pharmacy waste water, is 50～100mg/ in the concentration of copper ion
L, voltage be 10～15V in the case of, when reacted between more than 110min when, the clearance of benzene homologues reaches more than 99%, for protect
Card work efficiency and the clearance of COD and benzene homologues, will be controlled to 120～180min in the response time；The present embodiment determines simultaneously
This kind of processing method makes the removal effect of benzene homologues very well, can be used for processing the pharmacy waste water containing phenyl ring.
Embodiment 3
The invention discloses a kind of composite intensified light electrolysis simulation process method, this processing method is specific as follows：
（1）Choose the actual pharmacy waste water containing benzene homologues, mainly with toluene for main characteristic contamination, concentration range is 50～
150mg/L, in addition also contains a small amount of benzene and ethylbenzene；
（2）To in pharmacy waste water acid adding adjust its pH be 2～5, then sequentially add 1%～3% hydrogen peroxide and 50～
The copper ion of 100mg/L, and stirred respectively using stirring rod；
（3）Insertion anode titanium plate and cathode titanium plates in simulated wastewater, and direct current is set between anode titanium plate and cathode titanium plates
Regulated power supply, the voltage that this D.C. regulated power supply is passed through is 10V～12V, and electric current is 0.01A～0.1A；Then continue to pharmacy
Add sintered ferrum carbon ball in waste water, make the volume of ferrum carbon ball and the ratio of water volume be 1:1, and in D.C. regulated power supply
120～180min is fully reacted with simulated wastewater in the case of work；
（4）Reaction completes in backward pharmacy waste water plus alkali adjusts pH value for 7～8, and sequentially adds PAC and PAM, stands after stirring
So that simulated wastewater is precipitated, and obtain supernatant.
Following table is the relation table in response time and COD clearance：
Following table is the relation table in response time and benzene homologues clearance：
The waste water processing containing phenyl ring is applied to by the simulation process method learning the present invention in embodiment 2, therefore the present embodiment will
, with to the actual pharmacy waste water containing phenyl ring, when reaching certain response time, the clearance of toluene can reach for it
99.9%, treatment effect is very good.
Ultimate principle and the principal character of the present invention have been shown and described above.It should be understood by those skilled in the art that,
The present invention is not restricted to the described embodiments, merely illustrating the principles of the invention described in above-described embodiment and description,
Without departing from the spirit and scope, the present invention also has various changes and modifications, and these changes and improvements all fall
Enter in scope of the claimed invention.Claimed scope is by appending claims and its equivalent thereof.
Claims (3)
1. a kind of composite intensified light electrolysis simulation process method it is characterised in that：Described processing method is specific as follows：
Choose waste water needed for processing procedure, mainly include the pharmacy waste water containing phenyl ring and simulated wastewater；Described simulated wastewater passes through
Add benzene homologues to obtain, described benzene homologues include benzene, toluene, ethylbenzene, dimethylbenzene and styrene, and addition is equal in pharmacy waste water
For 45～55mg/L；
Adjusting its pH to acid adding in the pharmacy waste water containing phenyl ring and simulated wastewater successively is 2～5, then sequentially adds hydrogen peroxide
And copper ion, and stirred respectively using stirring rod；
Insert anode titanium plate and cathode titanium plates respectively in pharmacy waste water and simulated wastewater, and anode titanium plate and cathode titanium plates it
Between arrange D.C. regulated power supply；Then continue to add sintered ferrum carbon ball in pharmacy waste water and simulated wastewater, make ferrum
The ratio of the volume of carbon ball and water volume is 1:1, and fully react 120 with waste water in the case of D.C. regulated power supply work～
180min；
After the completion of reaction respectively in pharmacy waste water and simulated wastewater plus alkali adjust pH value be 7～8, and sequentially add PAC and
PAM, after stirring, standing makes wastewater sedimentation, and obtains supernatant.
2. a kind of composite intensified light electrolysis simulation process method according to claim 1 it is characterised in that：Described step
（2）The concentration of middle hydrogen peroxide is 1%～3%, and the concentration of copper ion is 50～100mg/L.
3. a kind of composite intensified light electrolysis simulation process method according to claim 1 it is characterised in that：Described step
（3）The voltage that middle D.C. regulated power supply is passed through is 10V～12V, and electric current is 0.01A～0.1A.
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| CN111217481A (en) * | 2020-01-20 | 2020-06-02 | 湖南金旅环保股份有限公司 | Pharmaceutical wastewater pretreatment method combining iron-carbon micro-electrolysis and Fenton-like system |
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| CN103145275A (en) * | 2013-03-15 | 2013-06-12 | 中北大学 | Method and device for treating wastewater by intensified micro-electrolysis-Fenton oxidation method |
| CN104355446A (en) * | 2014-11-06 | 2015-02-18 | 台州学院 | Chemical pharmaceutical wastewater pretreatment enhancement device and enhancement treatment method thereof |
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| CN103145275A (en) * | 2013-03-15 | 2013-06-12 | 中北大学 | Method and device for treating wastewater by intensified micro-electrolysis-Fenton oxidation method |
| CN103145275B (en) * | 2013-03-15 | 2015-02-04 | 中北大学 | Method and device for treating wastewater by intensified micro-electrolysis-Fenton oxidation method |
| CN104355446A (en) * | 2014-11-06 | 2015-02-18 | 台州学院 | Chemical pharmaceutical wastewater pretreatment enhancement device and enhancement treatment method thereof |
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| CN111217481A (en) * | 2020-01-20 | 2020-06-02 | 湖南金旅环保股份有限公司 | Pharmaceutical wastewater pretreatment method combining iron-carbon micro-electrolysis and Fenton-like system |
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