CN1216810C - Method for removing micro di-n-butyl phthalate from drinking water by oxidation - Google Patents
Method for removing micro di-n-butyl phthalate from drinking water by oxidation Download PDFInfo
- Publication number
- CN1216810C CN1216810C CN 02156734 CN02156734A CN1216810C CN 1216810 C CN1216810 C CN 1216810C CN 02156734 CN02156734 CN 02156734 CN 02156734 A CN02156734 A CN 02156734A CN 1216810 C CN1216810 C CN 1216810C
- Authority
- CN
- China
- Prior art keywords
- water
- ozone
- reaction
- dibutyl phthalate
- oxidation
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention provides a method for removing diphthalate butyl phthalate (DBP) as endocrine interfering substances in a trace amount from drinking water through oxidation, which belongs to the application area of water treatment. In the specific method of the present invention, ozone is used as an oxidizing agent, and ozone generation is realized by an O3 supplying device; an effective and sufficient reaction between ozone and DBP in water is realized by a static reaction device; a tail gas absorbing device is used for recycling residual ozone so as to reach the purpose of strengthening and removing the trace amount of DBP in water. When the method of the present invention is used for treating the trace amount of DBP in drinking water, the removing rate reaches more than 90%, intermediate degradation products generated by the reactions can be completely removed, and secondary pollution does not exist; consequently, the present invention is a safe drinking water treatment method.
Description
Technical field
The present invention relates to the micro-endocrine disruptor in a kind of oxidation removal tap water---the method for dibutyl phthalate, specifically is with O
3Feed in the batch reactor, react, by reaction conditionss such as control ozone amount, reaction times, pH, the final oxidation removal of realizing dibutyl phthalate in the tap water with the water that contains dibutyl phthalate.
Background technology
Phthalic ester is the important organic chemicals of a class, be the particularly softening agent of polyvinyl chloride of plastics, be extensive use of and increase day by day at aspects such as foodstuffs material, medical instruments, leatheroids, to the utmost for being present at large in the surrounding mediums such as soil, bed mud, water body, biology, air and atmospheric fallout.The former water of water-supply plant and the investigation and analysis of output water are shown that phthalate compound is ubiquity in Drinking Water in China.
Phthalic ester has the internal secretion interference effect, though it has bigger reactive behavior than other low water-soluble degree, difficult volatile organic compound such as polycyclic aromatic hydrocarbons, the halogen of manying biphenyl, organochlorine pesticide etc., but still be difficult to by conventional tap water treatment process such as oxidation removals such as chlorination, potassium permanganate.The maximum degraded to such material of research at present mainly is a microbial process, but biological degradation mainly is to carry out at the phthalic ester in mud or the sewage, also study very few for the removal of the phthalic ester in the tap water, simultaneously the condition of water quality of tap water and phthalic ester have concentration and a water quality requirement thereof, be unsuitable for adopting existing biotechnology to handle.Add Cl in addition
2, ClO
2Deng forming a series of by products that still have toxicity and internal secretion interferon activity after the method for oxidation processing, drinking after handling caused secondary pollution; Because O
3Have stronger oxidisability, instability, become oxygen after the decomposition, so ozonize is a kind of water treatment method of safety.
Summary of the invention
The objective of the invention is: with ozone as oxygenant, by strengthening the ozonize process, set up a kind of safe, efficiently remove micro-endocrine disrupter in the tap water---the novel method of dibutyl phthalate, for drink water purifying provides utilisation technology.
Method of the present invention is: adopt O
3Certain density O takes place in producer
3, adopt batch reactor that the ozone of feeding is mixed with the water that contains dibutyl phthalate under certain conditions and fully reaction, adopt KI solution to residue O
3Tail gas absorbs.
Description of drawings
Reaction process of the present invention is shown in Figure of description.The certain flow of supplying with from oxygen bottle 1 of pure oxygen control enters O
3Producer 2 produces certain density O
3, O
3Enter oxidation reaction apparatus 6 through air robot under meter 3 again, reaction unit 6 is by reaction flask, magnetic stirring apparatus 4, stirrer 5, O
3Import 11 and outlet 12 are formed, and enter the O of reaction unit
3Gas is distributed in the reaction soln through after the magnetic agitation of stirrer equably by gas distribution micropore 8, behind the reaction certain hour, from thief hole 7 sampling and measuring: react unemployed O
3Enter secondary KI absorption bottle 9 and absorb, still remaining O after KI absorbs
3Enter O
3 Tail gas destructor 10 destroys.
Concrete grammar of the present invention is as follows:
1, utilize oxygen (＞99.5%) by an ozone generator O to occur3, flow is controlled by a gas flowmeter, the O that produces3Pass in the reactor that water is housed by anti-oxidant plastic tube immediately, magnetic agitation is even.
2, at O3Change in the reactor and carry out ozonization. From O3The O that generator occurs3Gas passes through O3The micropore titanium air distribution plate of changing reactor bottom enters in the water, and concentration adds certain density dibutyl phthalate solution after reaching requirement, and the pH condition of conditioned reaction in the control reaction time, makes O3Fully react with the water that contains dibutyl phthalate, reach the highest removal efficient.
3, O
3Tail gas absorbs.Do not dissolve in the O in the water
3KI solution with 5% absorbs, and absorbs incomplete O
3Destroy with the ozone tail gas destructor again, when closing source of the gas, use iodometric determination O
3Amount is as O
3Consumption.
Characteristics of the present invention are:
1, carries out oxidizing reaction under the static conditions, make reaction be easy to control.Owing to utilize existing O
3Producer O
2Do source of the gas O takes place
3Often be not easy to accomplish the continual and steady of air-flow, and static method has overcome the defective of dynamic approach, is convenient to control.
2, improved O
3Utilization ratio has reduced O
3Additive decrementation.Opening O
3The time that producer is very short also obtains certain density O
3Promptly close after the solution, make O soluble in water
3The overwhelming majority all is used for the oxidation of dibutyl phthalate, and the prolongation that has overcome owing to the time makes O
3Continuing amount soluble in water significantly reduces;
3, O
3Accomplished safety, efficient during micro-endocrine disruptor dibutyl phthalate in the processing drinking water, the dibutyl phthalate clearance of handling in the tap water of back can reach more than 90%, and the intermediate product that is produced in the process of reaction also can finally be realized degrading fully, makes O
3The reaction of oxidation dibutyl phthalate does not produce any poisonous, deleterious by product;
4, (different treating water pH value, temperature and different O under different treatment condition
3Dosage, different dibutyl phthalate starting point concentration), the oxidation removal effect of dibutyl phthalate can be slightly different, but removal that also can major part.
Embodiment:
Embodiment 1:
Volume is the interior phosphate buffer soln 285mL that adds of the reactor of 500mL, adjusts O
3Each parameter of producer is to set(ting)value, with the flow velocity generation O of 300mL/min
3, treat that steady air current inserts the gas reactor inlet after 2 minutes, pick up counting, close O after 2 minutes 40 seconds
3Producer, cut-out source of the gas are got its O of 3mL water determination with the 1cm cuvette
3Concentration is 4.0mg/L, adds the dibutyl phthalate storing solution of 12.5mL10mg/L this moment, the airtight oxidizing reaction of carrying out, and this moment is as 0 constantly.Carry out oxide treatment under the following conditions:
O
3Producer electric current: 220mA
Reaction target solution volume: 300mL
Reaction target solution concentration: 800 μ g/L
Reaction target solution temperature: 22 ℃
Reaction soln system: 0.05M phosphate buffer soln
PH value: 6.95
Initial O
3Concentration: 4.0mg/L
The dibutyl phthalate concentration that sampling time point: 5min, 10min, 20min, 30min, 60min handle in the water of back is as shown in table 1.
Table 1 embodiment 1 handles the dibutyl phthalate concentration in the water of back
| Time (min) | 5 | 10 | 20 | 30 | 60 |
| Dibutyl phthalate concentration (μ g/L) | 595.2 | 556.0 | 491.2 | 477.6 | 436.0 |
Embodiment 2:
Volume is the interior phosphate buffer soln 300mL that adds of the reactor of 500mL, adjusts O
3Each parameter of producer is to set(ting)value, with the flow velocity generation O of 300mL/min
3, treat that steady air current inserts the gas reactor inlet after 2 minutes, pick up counting, close O after 0.5 minute
3Producer, cut-out source of the gas are got its O of 3mL water determination with the 1cm cuvette
3Concentration is 0.5mg/L, adds the dibutyl phthalate storing solution of 3mL 10mg/L this moment, the airtight oxidizing reaction of carrying out, and this moment is as 0 constantly.Carry out oxide treatment under the following conditions:
Reaction target solution volume: 300mL
Reaction target solution concentration: 100 μ g/L
Reaction target solution temperature: 22 ℃
Reaction soln system: 0.05M phosphate buffer soln
PH value: 6.95
Initial O
3Concentration: 0.5mg/L
Sampling time point: 2min, 5min, 10min, 20min, 30min, 60min
The dibutyl phthalate concentration of handling in the water of back is as shown in table 2.
Table 2 embodiment 2 handles the dibutyl phthalate concentration in the water of back
| Time (min) | 2 | 5 | 10 | 20 | 30 | 60 |
| Dibutyl phthalate concentration (μ g/L) | 61.86 | 53.03 | 50.7 | 39.5 | 38.11 | 35.12 |
Embodiment 3:
Volume is the interior phosphate buffer soln that adds of the reactor of 500mL, adjusts O
3Each parameter of producer is to set(ting)value, with the flow velocity generation O of 300mL/min
3, treat that steady air current inserts the gas reactor inlet after 2 minutes, pick up counting, close O after 1 minute 30 seconds
3Producer, cut-out source of the gas are got its O of 3mL water determination with the 1cm cuvette
3Concentration is 2.0mg/L, adds the dibutyl phthalate storing solution of 3mL 10mg/L this moment, the airtight oxidizing reaction of carrying out, and this moment is as 0 constantly.Carry out oxide treatment under the following conditions:
Reaction target solution volume: 300mL
Reaction target solution concentration: 100 μ g/L
Reaction target solution temperature: 22 ℃
Reaction soln system: 0.05M phosphate buffer soln
PH value: 4.30,9.16
Initial O
3Concentration: 2.0mg/L
The dibutyl phthalate concentration that sampling time point: 3min, 5min, 10min, 20min, 30min handle in the water of back is as shown in table 3.
Table 3 embodiment 3 handles the dibutyl phthalate concentration in the water of back
(pH＝4.30)
| Time (min) | 3 | 5 | 10 | 20 | 30 |
| Dibutyl phthalate concentration (μ g/L) | 58.33 | 55.32 | 48.61 | 31.37 | 29.4 |
(pH＝9.15)
| Time (min) | 3 | 5 | 10 | 20 | 30 |
| Dibutyl phthalate concentration (μ g/L) | 17.14 | 10.83 | 10.06 | 9.98 | 9.9 |
Claims (1)
1. method of removing the micro-endocrine disruptor-dibutyl phthalate in the tap water with ozone as the oxygenant oxidation, it is characterized in that adopting the static reaction device to carry out ozone oxidation reaction: in batch reactor, to add phosphate buffer soln, with O
3Feed in this reactor, after ozone concn reaches 0.5-4mg/L, the processed water that contains dibutyl phthalate is added in the reactor, make ozone and the water that contains dibutyl phthalate carry out thorough mixing and reaction, pH is controlled in the 4.3-9.15 scope, reaction times is 0-60 minute, and the dibutyl phthalate clearance after handling in the tap water is at 45.5%-90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156734 CN1216810C (en) | 2002-12-18 | 2002-12-18 | Method for removing micro di-n-butyl phthalate from drinking water by oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156734 CN1216810C (en) | 2002-12-18 | 2002-12-18 | Method for removing micro di-n-butyl phthalate from drinking water by oxidation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508080A CN1508080A (en) | 2004-06-30 |
| CN1216810C true CN1216810C (en) | 2005-08-31 |
Family
ID=34236367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02156734 Expired - Fee Related CN1216810C (en) | 2002-12-18 | 2002-12-18 | Method for removing micro di-n-butyl phthalate from drinking water by oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1216810C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700923B (en) * | 2009-11-18 | 2012-01-04 | 重庆大学 | Method for removing environment hormone dimethyl phthalate in water body |
| CN102561243A (en) * | 2012-02-06 | 2012-07-11 | 西安费斯达自动化工程有限公司 | Method for using ozone to treat methyl stearate in pavement oil leakage |
| CN111470610B (en) * | 2020-03-18 | 2021-02-26 | 深圳信息职业技术学院 | Ozone water treatment technology evaluation system and method |
-
2002
- 2002-12-18 CN CN 02156734 patent/CN1216810C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1508080A (en) | 2004-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110776080A (en) | Composite Fenton-like reagent containing trace iron and method for degrading organic pollutants by using same | |
| CN109626645A (en) | A kind of chemical wastewater treatment technique | |
| CN1216810C (en) | Method for removing micro di-n-butyl phthalate from drinking water by oxidation | |
| CN103991989A (en) | Method for treating organic wastewater | |
| CN104609649A (en) | Method and device for treating wastewater containing high-concentration phenol | |
| CN108558131A (en) | A kind of method of Fenton group technology processing treatment of Perfume Wastewater | |
| CN106348542A (en) | Treatment method of high-concentration-antibiotic-containing pharmaceutical wastewater | |
| CN100413787C (en) | Process for efficient removing organic pollutant in water by catalysis and ozonization | |
| CN105366836A (en) | Process and device for circulating multi-dimensional catalyzing advanced oxidation treatment of oily wastewater | |
| CN1260137C (en) | Method for treating urban drinking water by radiation | |
| CN112624259A (en) | Method for removing diethyl phthalate in water by utilizing sulfite light | |
| WO2022050838A1 (en) | Wastewater ozone treatment | |
| CN204079675U (en) | The device of circular treatment oily(waste)water | |
| CN1657436A (en) | Ozone high grade oxidation method for treating water | |
| CN112499754A (en) | Nitrogenous wastewater treatment system | |
| US20050133445A1 (en) | Process for reducing sludge derived from the treatment of wastewater by oxygenation and mechanical action | |
| CN101591047A (en) | Ultrasonic wave is removed the method for chlorine disinfection by-product in the tap water | |
| CN104787988A (en) | Intelligent domestic sewage treatment device and sewage treatment method | |
| CN107555725A (en) | A kind of sewage disposal of hospital method | |
| CN109133533B (en) | Integrated treatment method for high-concentration liquid crystal wastewater | |
| CN102976562A (en) | Chemical integrated wastewater treatment process | |
| CN110372064B (en) | Method for treating medical waste liquid by using electron beam irradiation technology | |
| Salehi et al. | The Efficiency of Anaerobic Biological Method Integrated with Fenton and Nanosilica Absorbent in the Treatment of Solid Waste Leachate | |
| KR20070079096A (en) | Waste water treatment by high density plasma gas generator | |
| KR101020786B1 (en) | Method for treatment of wastewater using radiation and zeolite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20171218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |