CN107032478A - A kind of sewage ozone high grade oxidation handling process - Google Patents

A kind of sewage ozone high grade oxidation handling process Download PDF

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Publication number
CN107032478A
CN107032478A CN201710330569.8A CN201710330569A CN107032478A CN 107032478 A CN107032478 A CN 107032478A CN 201710330569 A CN201710330569 A CN 201710330569A CN 107032478 A CN107032478 A CN 107032478A
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CN
China
Prior art keywords
ozone
high grade
sewage
toc
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710330569.8A
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Chinese (zh)
Inventor
不公告发明人
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GUANGDONG TROTH WATER EQUIPMENT Ltd
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GUANGDONG TROTH WATER EQUIPMENT Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by GUANGDONG TROTH WATER EQUIPMENT Ltd filed Critical GUANGDONG TROTH WATER EQUIPMENT Ltd
Priority to CN201710330569.8A priority Critical patent/CN107032478A/en
Publication of CN107032478A publication Critical patent/CN107032478A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/20—Total organic carbon [TOC]

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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)

Abstract

The invention discloses a kind of sewage ozone high grade oxidation handling process, the technique includes being passed through ozone and H to staying water2O2；Wherein ozone and H2O2Mol ratio be 0.5 0.75:1；Total COD of ozone and staying water weight ratio is 35:1.The invention discloses optimal ozone hydrogen peroxide ratio, ozone concentration and HCO3 ‑Influence to water body processing procedure, seeks to a kind of clearance is high, economically viable ozone hydrogen peroxide concertedness effect sewage ozone high grade oxidation treatment technology.

Description

A kind of sewage ozone high grade oxidation handling process
Technical field
The present invention relates to water treatment field, and in particular to a kind of sewage ozone high grade oxidation handling process.
Background technology
Ozone (O3) sewage disposal technology in 1905 be applied to water process, with the progress of correlation technique, ozonization method The reduction of cost, is generally considered very promising method for treating water.
Ozone has extremely strong oxidisability, and its oxidation mechanism there is no the research conclusion of affirmative at present, it is generally recognized that main The OH free radicals to be dissociated from ozone, it is that occur oxidant most active in the known oxidant in water, and it is easy to Reacted by fundamental mode by various types of oxidation operations.OH free radicals can also form secondary with other materials such as benzene derivative etc. Base is aoxidized, carbonate or bicarbonateion can also be oxidized to that the carbonate or heavy carbonic of three oxidants can be played by it Root.
For large-scale sewage disposal, how on the premise of economically feasible is taken into account, improve the treatment effeciency of ozone, protect The processing quality of sewage is demonstrate,proved, this is the key subjects that a n-th-trem relation n enterprise runs for a long time.
The content of the invention
It is high, economically viable the invention aims to provide a kind of clearance in order to overcome the deficiencies in the prior art Sewage disposal technology.
The purpose of the present invention is realized using following technical scheme：
A kind of sewage ozone high grade oxidation handling process, the technique includes being passed through ozone and H to staying water2O2；Wherein Ozone and H2O2Mol ratio be 0.5-0.75:1；Ozone and the COD of pending body water body weight ratio are 3-5:1.
Preferably, the concentration of ozone is 5-10wt%.
Preferably, H2O2Concentration be 0.5-2wt%.
Preferably, residence time of the ozone in staying water is 40-80min.
Compared with prior art, the beneficial effects of the present invention are：The sewage treatment process that the present invention is provided, has inquired into optimal Ozone hydrogen peroxide ratio, ozone concentration and HCO3 -Influence to water body processing procedure, seeks to a kind of clearance height, warp The sewage disposal technology of the effect of the feasible ozone-hydrogen peroxide concertedness of Ji.
Brief description of the drawings
Fig. 1 is reagent treatment and the curve map of TOC degradation rates；
Fig. 2 is the mol ratio and the curve map of TOC clearances of hydrogen peroxide and ozone.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
In specific examples below, the COD of water sample is determined using national standard potassium dichromate method, TOC analysis-e/or determinings are used TOC。
In specific examples below, the index of staying water is as shown in the table：
The index of the staying water of table 1
TOC(mg/L) COD(mg/L) pH HCO3 -(mol/L)
54 60 7.21 15.625
In specific examples below, ozone is prepared using ozone generator, it is pure oxygen that it, which is supplied, and outlet is that concentration is 5- 10wt% oxygen-ozone gaseous mixture.
Embodiment 1：
The O of amount as shown in the table is passed through in 40min into 700mL staying waters3, the total COD of water body is 42mg, experiment During beginning, the pH of water body is 8.05, and the TOC values of water body are the TOC values of survey water body after 49.45mg/L, 2.5h.O3Intake and water TOC and TOC degradation rates in body are as shown in the table：
The O3 intakes of table 2 and COD relation are tested
As shown in Table 2, single ozone is after 2.5h reactions, degradation rate of TOC values in the water body still hardly possible up to 50%, also not Balance.
Embodiment 2：
On the basis of embodiment 1,1wt% H is added dropwise in 40min2O2So that H2O2With O3Mol ratio be 0.6:1, During on-test, the total COD of water body is 42mg, and the pH of water body is 7.83.O3And H2O2Intake and water body in TOC and TOC drop Solution rate is as shown in the table：
The O of table 33Amount and the total COD of water body ratios affect test
The clearance to TOC of embodiment 1 and embodiment 2 is as shown in figure 1, from the comparison of embodiment 1 and embodiment 2 O3The weight ratio of preferably dosage and COD total amounts is 4:It is preferable when 1, and it is passed through H2O2The clearance to TOC can be effectively improved.
Embodiment 3：
1wt% H is added dropwise in 40min into 700mL staying waters2O2So that H2O2With O3Mol ratio meet 0.25:1、0.5:1、0.75:1、1:1、1.25:1 and 1.5:1, continuously it is passed through the O that total amount is 168mg3, the TOC values of water body starting And the TOC values of each period are as shown in the table, TOC clearance is as shown in the table：
The H of table 42O2With O3Ratio to TOC clearances influence experiment
As can be seen from the above table, added the TOC clearances of hydrogen peroxide will be higher than independent ozone, with dioxygen water Increase, the time increased clearance slope of a curve before this, in H2O2：O3=0.5-0.75:It is maximum when 1, after the ratio, Slope is held substantially constant.So, optimal H2O2Dosage be H2O2：O3(mol ratio)=0.5-0.75:1.
Embodiment 4：
In embodiment 4a, to 700mL, O is passed through with 2.8mg/min flow in pH=7.19 staying waters3, keep O3 It is passed through 60min；
In embodiment 4b, O is being passed through3Before, the pH of water body is first adjusted to 2, nitrogen blowing 2h with hydrochloric acid, NaOH solution is reused PH is pulled back to 7.19.
In embodiment 4c, on the basis of embodiment 4a, while 47mg hydrogen peroxide is added dropwise；
In embodiment 4d, on the basis of embodiment 4b, while 47mg hydrogen peroxide is added dropwise；
Its result is as shown in the table：
The HCO of table 53 -In the presence of the influence experiment to clearance
In the presence of hydrogen peroxide, HCO3 -Add TOC removal efficiency.Under the same terms, independent ozone catalytic, HCO3 -Remove TOC clearances are not also raised afterwards, may be due to HCO3 -Presence have impact on the pH value of water body, so as to have impact on the effect of ozone Rate, subsequently needs further to verify this conclusion.HCO3 -Concentration there is no shadow to hydrogen peroxide-ozone reaction for providing of the present invention Ring.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention Within.

Claims (4)

1. a kind of sewage ozone high grade oxidation handling process, it is characterised in that be passed through ozone and H to staying water2O2；Wherein Ozone and H2O2Mol ratio be 0.5-0.75:1；Ozone and total COD of pending body water body ratio are 3-5:1.
2. sewage treatment process according to claim 1, it is characterised in that the concentration of ozone is 5-10wt%.
3. sewage treatment process according to claim 1, it is characterised in that H2O2Concentration be 0.5-2wt%.
4. sewage treatment process according to claim 1, it is characterised in that residence time of the ozone in staying water For 40-80min.
CN201710330569.8A 2017-05-11 2017-05-11 A kind of sewage ozone high grade oxidation handling process Pending CN107032478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710330569.8A CN107032478A (en) 2017-05-11 2017-05-11 A kind of sewage ozone high grade oxidation handling process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710330569.8A CN107032478A (en) 2017-05-11 2017-05-11 A kind of sewage ozone high grade oxidation handling process

Publications (1)

Publication Number Publication Date
CN107032478A true CN107032478A (en) 2017-08-11

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CN201710330569.8A Pending CN107032478A (en) 2017-05-11 2017-05-11 A kind of sewage ozone high grade oxidation handling process

Country Status (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581985A (en) * 1977-04-14 1980-12-31 Rohrer E Method for the reduction of the chemical oxygen demand of water and waste water by catalytic oxidation and use of such method
CN103818994A (en) * 2014-02-26 2014-05-28 郑州大学 Dosing method for ozone oxidation decolorant used for papermaking pulping waste water
CN104909499A (en) * 2015-06-10 2015-09-16 上海化学工业区中法水务发展有限公司 Petrochemical wastewater secondary effluent treatment method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581985A (en) * 1977-04-14 1980-12-31 Rohrer E Method for the reduction of the chemical oxygen demand of water and waste water by catalytic oxidation and use of such method
CN103818994A (en) * 2014-02-26 2014-05-28 郑州大学 Dosing method for ozone oxidation decolorant used for papermaking pulping waste water
CN104909499A (en) * 2015-06-10 2015-09-16 上海化学工业区中法水务发展有限公司 Petrochemical wastewater secondary effluent treatment method

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Application publication date: 20170811