CN108622963A - It is a kind of with persulfate solution be excite object plasma evaporation technique - Google Patents
It is a kind of with persulfate solution be excite object plasma evaporation technique Download PDFInfo
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- CN108622963A CN108622963A CN201810435574.XA CN201810435574A CN108622963A CN 108622963 A CN108622963 A CN 108622963A CN 201810435574 A CN201810435574 A CN 201810435574A CN 108622963 A CN108622963 A CN 108622963A
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- plasma
- persulfate solution
- steam
- evaporation technique
- persulfate
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Classifications
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
Abstract
It is a kind of with persulfate solution be excite object plasma evaporation technique, fields be chemical engineering in evaporative crystallization field.Primarily to solving the shortcoming that existing evaporation technology is difficult to remove volatile organic contaminant in waste water, the main points to solve the above problems are the technique：It is excitation object with persulfate solution, the plasma of 4400~4600 DEG C of temperature is generated with the mode that 300~310A DC currents discharge；Above-mentioned plasma is sprayed by vaporization chamber bottom, and is directly contacted with liquid and carried out heat and mass；Vaporization chamber is discharged in liquid heat absorption evaporation, the steam of generation together with plasma；Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron have extremely strong oxidability in plasma, volatile organic contaminant in steam can be decomposed into carbon dioxide and water, improve removal rate of the evaporation technology to Organic Pollutants in Wastewater.
Description
Technical field
The present invention relates to the evaporative crystallization fields in chemical engineering, and specially one kind is excitation object with persulfate solution
Plasma evaporation technique.
Background technology
With the rapid development of chemical industry, the type and quantity of waste water rapidly increase, and produce more and more superelevation
Concentration organic wastewater seriously threatens the health and safety of the mankind.For ultra-high concentration organic wastewater, such as organic chemical synthesis work
Industry waste water and agricultural chemicals waste water etc., conventional oxidizing process and biochemical process have been difficult to be applicable in.
Evaporative crystallization method has been increasingly being applied in the processing of ultra-high concentration organic wastewater, with obvious effects.
However, for the waste water containing volatile organic matter, existing evaporation technology is often difficult to directly handle waste water up to standard, still needs to
Want subsequent processing.
Therefore urgent need exploitation one kind is simple and efficient, the wider array of evaporation technology of the scope of application.
Invention content
The problem of the purpose of the present invention is to solve existing evaporation technologies and deficiency, provide a kind of simple height
Effect, the wider array of evaporation technology of the scope of application.
Technical scheme is as follows：It is excitation object with persulfate solution, is discharged with 300~310A DC currents
Mode generate the plasma of 4400~4600 DEG C of temperature；Above-mentioned plasma is sprayed by vaporization chamber bottom, and directly and liquid
Body contact carries out heat and mass；Vaporization chamber is discharged in liquid heat absorption evaporation, the steam of generation together with plasma；In plasma
Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron has extremely strong oxidability, can will be in steam
Volatile organic contaminant be decomposed into carbon dioxide and water, improve removal of the evaporation technology to Organic Pollutants in Wastewater
Rate；Steam eventually passes through condensation and obtains evaporator water outlet.
Wherein：Using persulfate solution as the excitation object of plasma.
Wherein：Persulfate is specially sodium peroxydisulfate, potassium peroxydisulfate and ammonium persulfate.
Wherein：Due to the difference of waste water quality, the amount of persulfate used is determined by lab scale.
Wherein：Plasma is generated by the way of the electric discharge of 300~310A DC currents.
Wherein：The plasma temperature generated is at 4400~4600 DEG C.
Wherein：Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron have extremely strong in plasma
Oxidability, the volatile organic contaminant in the steam that can degrade.
Plasma generated in the method for the present invention, itself has high temperature, can provide heat for evaporation technology
Source；A large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron are carried in plasma simultaneously, due to sulfate radical freedom
Big energy entrained by superpower oxidability and high energy electron possessed by base, hydroxyl radical free radical, causes it can be without selection
Volatile organic contaminant of the property ground in steam of degrading.
Specific implementation mode
To facilitate the understanding of the present invention, will be hereafter to implement with " Jiangsu Tiancheng Biochemistry Products Co., Ltd's sorbic acid wastewater treatment "
Example more comprehensively, meticulously describes present invention work, but not as a limitation of the invention.
Embodiment 1：A concentration of 1.4% sodium peroxydisulfate solution is provided in a manner of atomization；Swashed with the DC current of 300A
It sends out sodium peroxydisulfate solution above-mentioned and generates 4400~4500 DEG C of plasmas of temperature；Above-mentioned plasma is sprayed by vaporization chamber bottom,
And it is directly contacted with liquid and carries out heat and mass；Vaporization chamber is discharged in liquid heat absorption evaporation, the steam of generation together with plasma；
Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron and steam are come into full contact in plasma, and
It directly degrades volatile organic contaminant therein；Take steam condensate to carry out COD detections to it, and with existing evaporation technology into
The longitudinal comparison of row.(remarks：Existing evaporation technology is by taking MVR evaporators as an example.)
Testing result：The existing evaporation technology water outlet COD=20600mg/L removal rates of raw water COD=82000mg/L=
74.88%
This evaporation technology of raw water COD=82000mg/L is discharged COD=91mg/L removal rate=99.89%
From testing result：This evaporation technology improves 25.01% to the more existing evaporation technology of COD removal rates；And this
Evaporation technology water outlet directly meets《Urban wastewater treatment firm pollutant emission standard》Secondary discharge standard.
Embodiment 2：A concentration of 1.6% sodium peroxydisulfate solution is provided in a manner of atomization；Swashed with the DC current of 310A
It sends out sodium peroxydisulfate solution above-mentioned and generates 4500~4600 DEG C of plasmas of temperature；Above-mentioned plasma is sprayed by vaporization chamber bottom,
And it is directly contacted with liquid and carries out heat and mass；Vaporization chamber is discharged in liquid heat absorption evaporation, the steam of generation together with plasma；
Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron and steam are come into full contact in plasma, and
It directly degrades volatile organic contaminant therein；Take steam condensate to carry out COD detections to it, and with existing evaporation technology into
The longitudinal comparison of row.(remarks：Existing evaporation technology is by taking MVR evaporators as an example.)
Testing result：The existing evaporation technology water outlet COD=20600mg/L removal rates of raw water COD=82000mg/L=
74.88%
This evaporation technology of raw water COD=82000mg/L is discharged COD=67mg/L removal rate=99.92%
From testing result：This evaporation technology improves 25.04% to the more existing evaporation technology of COD removal rates；And this
Evaporation technology water outlet directly meets《Urban wastewater treatment firm pollutant emission standard》Secondary discharge standard.
Claims (7)
1. it is the plasma evaporation technique for exciting object that the present invention provides a kind of with persulfate solution, it is characterised in that：
It is excitation object with persulfate solution, 4400~4600 DEG C of temperature is generated with the mode that 300~310A DC currents discharge
Plasma；Above-mentioned plasma is sprayed by vaporization chamber bottom, and is directly contacted with liquid and carried out heat and mass；Liquid heat absorption is steamed
Vaporization chamber is discharged in hair, the steam of generation together with plasma；Entrained a large amount of potentiometric titrations, hydroxyl in plasma
Free radical and high energy electron have extremely strong oxidability, can the volatile organic contaminant in steam be decomposed into titanium dioxide
Carbon and water improve removal rate of the evaporation technology to Organic Pollutants in Wastewater；Steam, which eventually passes through condensation and obtains evaporator, to be gone out
Water.
2. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：Using persulfate solution as the excitation object of plasma.
3. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：Persulfate is specially sodium peroxydisulfate, potassium peroxydisulfate and ammonium persulfate.
4. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：Due to the difference of waste water quality, the amount of persulfate used is determined by lab scale.
5. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：Plasma is generated by the way of the electric discharge of 300~310A DC currents.
6. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：The plasma temperature generated is at 4400~4600 DEG C.
7. it is according to claim 1 a kind of with the plasma evaporation technique that persulfate solution is excitation object, it is special
Sign is：Entrained a large amount of potentiometric titrations, hydroxyl radical free radical and high energy electron have extremely strong oxidation in plasma
Ability, the volatile organic contaminant in the steam that can degrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435574.XA CN108622963A (en) | 2018-05-02 | 2018-05-02 | It is a kind of with persulfate solution be excite object plasma evaporation technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435574.XA CN108622963A (en) | 2018-05-02 | 2018-05-02 | It is a kind of with persulfate solution be excite object plasma evaporation technique |
Publications (1)
| Publication Number | Publication Date |
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| CN108622963A true CN108622963A (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951720A (en) * | 2011-08-17 | 2013-03-06 | 中国石油化工股份有限公司 | Wastewater processing method |
| CN103896361A (en) * | 2014-03-22 | 2014-07-02 | 中国科学院等离子体物理研究所 | Device and method for treating organic waste water by water plasma torch |
| CN106145501A (en) * | 2015-03-23 | 2016-11-23 | 昆山未来环保科技有限公司 | The low-temperature evaporation processing method of industrial wastes and processing means thereof |
| CN107098530A (en) * | 2017-05-02 | 2017-08-29 | 山东博润工业技术股份有限公司 | A kind of positive osmosis treatment system of chloro alcali wastewater and handling process |
-
2018
- 2018-05-02 CN CN201810435574.XA patent/CN108622963A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951720A (en) * | 2011-08-17 | 2013-03-06 | 中国石油化工股份有限公司 | Wastewater processing method |
| CN103896361A (en) * | 2014-03-22 | 2014-07-02 | 中国科学院等离子体物理研究所 | Device and method for treating organic waste water by water plasma torch |
| CN106145501A (en) * | 2015-03-23 | 2016-11-23 | 昆山未来环保科技有限公司 | The low-temperature evaporation processing method of industrial wastes and processing means thereof |
| CN107098530A (en) * | 2017-05-02 | 2017-08-29 | 山东博润工业技术股份有限公司 | A kind of positive osmosis treatment system of chloro alcali wastewater and handling process |
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Application publication date: 20181009 |