CN104276627A - Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant - Google Patents
Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant Download PDFInfo
- Publication number
- CN104276627A CN104276627A CN201410477884.XA CN201410477884A CN104276627A CN 104276627 A CN104276627 A CN 104276627A CN 201410477884 A CN201410477884 A CN 201410477884A CN 104276627 A CN104276627 A CN 104276627A
- Authority
- CN
- China
- Prior art keywords
- electric arc
- power supply
- electrode
- voltage power
- stainless steel
- 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
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 15
- 238000010891 electric arc Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 4
- 210000002381 plasma Anatomy 0.000 abstract 4
- 239000007921 spray Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- -1 hydroxyl free radical Chemical class 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 2
- OUUQCZGPVNCOIJ-UHFFFAOYSA-N hydroperoxyl Chemical compound O[O] OUUQCZGPVNCOIJ-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a method of sterilizing effluent of a non-thermal electric arc plasma sewage treatment plant. The method comprises the following steps: introducing the effluent of a sewage treatment plant into a non-thermal electric arc plasma device which comprises a high-voltage power supply, one or more stainless steel knife structure electrodes connected in parallel, a spray nozzle and a gas source; switching on the high-voltage power supply to generate a breakdown electric arc between the stainless steel knife structure electrode(s) and a water liquid surface; switching on the gas source so that gas flow drives the electric arc through the spray nozzle to slide along the knife structure electrode(s) to form non-thermal electric arc plasmas which induce a plasma chemical reaction to produce a large quantity of active particles such as hydrogen peroxide, ozone and hydroxyl radicals, wherein the active particles are capable of effectively killing harmful microbes in the effluent of to-be-treated sewage treatment plant. The method disclosed by the invention can be used for controlling a water sterilization process according to the practical needs, is simple, low in cost, high in treatment efficiency and capable of conveniently realizing water draining safety guarantee.
Description
Technical field
The present invention relates to water technology, particularly relate to the method for a kind of Non-thermal arc plasma body sewage disposal plant effluent sterilization.
Background technology
Conventional sewage disposal plant effluent sterilization method has chlorination and disinfection by ultraviolet light, but the by product chlorine of chlorination becomes an outstanding secondary pollution problem gradually on the impact of environment.Also there is fluorescent tube and will regularly replace in disinfection by ultraviolet light, adds the problems such as cost of investment.Therefore, economical, carry out sewage disposal plant effluent sterilization efficiently, except the existing technology of improvement, new technology need be developed.
Summary of the invention
For solving the problem, the present invention proposes the method for a kind of Non-thermal arc plasma body sewage disposal plant effluent sterilization.The method feature is in water outlet by action of plasma, the change of a series of plasma chemistry and reaction is there is in water, produce a large amount of hydrogen peroxide, hydroxyl free radical, ozone, hydroperoxy radical isoreactivity particle, can effectively harmful microorganism in water outlet be killed.
The present invention, for reaching above object, is realized by following technical scheme:
There is provided the method for a kind of Non-thermal arc plasma body sewage disposal plant effluent sterilization: 1) sewage disposal plant effluent is introduced Non-thermal arc plasma device; 2) high-voltage power supply is opened, produce between knife-edge stainless steel electrode and water liquid level and puncture electric arc, open source of the gas, air-flow drives electric arc to slide along knife structure electrode by nozzle, form Non-thermal arc plasma body, induced by plasma plasma chemical reaction, carries out sterilization and disinfection process to the water outlet for the treatment of sewage treatment plant.
Described Non-thermal arc plasma device, comprises high-voltage power supply (1), knife-edge stainless steel electrode (2), nozzle (5), source of the gas (6); The knife-edge stainless steel electrode (2) of one or more parallel connections, as an electrode, is connected with one end of high-voltage power supply (1), and pending water (4), as another electrode, is connected with the other end of high-voltage power supply (1); Gas from source of the gas (6) through pipeline injection nozzle until reactor, gas is oxygen or air; Stainless steel electrode level is placed in pending side waterborne, electrode is dried up surperficial minor increment 3 ~ 8mm; High-voltage power supply power supply voltage range 10000 ~ 20000V.
The principle of sterilization of the present invention: a large amount of high-energy electron of plasma generation, in their bombardment water, water molecules generates many active particles:
Wherein active particle OH (hydroxyl free radical), H
2o
2(hydrogen peroxide) and O
3(ozone), HO
2(hydroperoxy radical) etc. are powerful sterilization oxygenants, can cause the sex change of the change of enzymic activity, the oxidation of lipid material, the degraded of protein and DNA, thus cause the death of bacterium.
The present invention can according to working control sewage disposal plant effluent sterilization process, simple, low cost, high treatment efficiency and realize sewage disposal plant effluent sterilization and disinfection easily.
Accompanying drawing explanation
Accompanying drawing is the device schematic diagram of the inventive method.
In figure: 1 high-voltage power supply, 2 knife-edge stainless steel electrodes, 3 Non-thermal arc plasma bodys, the water outlet of 4 treatment sewage treatment plants, 5 nozzles, 6 sources of the gas.
Embodiment
Embodiment
As shown in drawings, to add Disinfection indicator colibacillus (numbering: water ATTC25922) is the water outlet of simulated sewage treatment plant, carries out sewage disposal plant effluent sterilization.5000mL pure water is introduced Non-thermal arc plasma device, 4 knife-edge stainless steel electrodes (2) in parallel as an electrode, each long 80mm, wide 30mm, thick 3mm, stainless steel electrode level is placed in pending water (4) top, electrode is dried up surperficial minor increment 5mm.Open high-voltage power supply (1), regulating voltage is to 10000V, produce between knife-edge stainless steel electrode and water liquid level and puncture electric arc, open air source of the gas (6), airflow drives electric arc to slide along knife structure electrode by nozzle (5), form Non-thermal arc plasma body (3), induced by plasma plasma chemical reaction, hydrogen oxide, ozone, hydroxyl free radical, oxyradical isoreactivity particle is generated in water, 1.1L/min liquid flows through from stainless steel electrode (2), and bacterium starting point concentration is 10
4cfu/mL, discharge process 20s, the bacterium kill ratio in water reaches 97.6%.
Claims (2)
1. a method for Non-thermal arc plasma body sewage disposal plant effluent sterilization, is characterized in that the step of the method is as follows: Non-thermal arc plasma device is introduced in water purification plant's water outlet; Open high-voltage power supply, produce between knife-edge stainless steel electrode and water liquid level and puncture electric arc, open source of the gas, air-flow drives electric arc to slide along knife structure electrode by nozzle, form Non-thermal arc plasma body, induced by plasma plasma chemical reaction, carries out sterilization and disinfection to the water outlet for the treatment of sewage treatment plant.
2. the method for a kind of Non-thermal arc plasma body sewage disposal plant effluent according to claim 1 sterilization, is characterized in that described Non-thermal arc plasma device, comprises high-voltage power supply, knife-edge stainless steel electrode, nozzle, source of the gas; The knife-edge stainless steel electrode of one or more parallel connections, as an electrode, is connected with one end of high-voltage power supply, and pending water, as another electrode, is connected with the other end of high-voltage power supply; Gas from source of the gas through pipeline injection nozzle until reactor, gas is oxygen or air; Stainless steel electrode level is placed in pending side waterborne, electrode is dried up surperficial minor increment 3 ~ 8mm; High-voltage power supply power supply voltage range 10000 ~ 20000V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477884.XA CN104276627A (en) | 2014-09-11 | 2014-09-11 | Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477884.XA CN104276627A (en) | 2014-09-11 | 2014-09-11 | Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104276627A true CN104276627A (en) | 2015-01-14 |
Family
ID=52252044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477884.XA Pending CN104276627A (en) | 2014-09-11 | 2014-09-11 | Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104276627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565447A (en) * | 2015-11-06 | 2016-05-11 | 朱小菊 | Energy-saving sterilization water reservoir |
| CN115259308A (en) * | 2022-08-09 | 2022-11-01 | 大连理工大学 | Device and method for treating wastewater by using atomized plasma |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066791A (en) * | 2007-06-19 | 2007-11-07 | 中山大学 | Triphase AC sliding arc non-balancing plasma sewage treating apparatus |
| CN201071317Y (en) * | 2007-07-11 | 2008-06-11 | 大连理工大学 | Corona discharge plasma body device for treatment of water |
| CN101254960A (en) * | 2008-03-27 | 2008-09-03 | 汪峰 | Plasma water treatment method and device thereof |
-
2014
- 2014-09-11 CN CN201410477884.XA patent/CN104276627A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066791A (en) * | 2007-06-19 | 2007-11-07 | 中山大学 | Triphase AC sliding arc non-balancing plasma sewage treating apparatus |
| CN201071317Y (en) * | 2007-07-11 | 2008-06-11 | 大连理工大学 | Corona discharge plasma body device for treatment of water |
| CN101254960A (en) * | 2008-03-27 | 2008-09-03 | 汪峰 | Plasma water treatment method and device thereof |
Non-Patent Citations (1)
| Title |
|---|
| J. JANCA 等: "Investigation of the Chemical Action of the Gliding and "Point" Arcs Between the Metallic Electrode and Aqueous Solution", 《PLASMA CHEMISTRY AND PLASMA PROCESSING》, vol. 19, no. 1, 31 December 1999 (1999-12-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565447A (en) * | 2015-11-06 | 2016-05-11 | 朱小菊 | Energy-saving sterilization water reservoir |
| CN115259308A (en) * | 2022-08-09 | 2022-11-01 | 大连理工大学 | Device and method for treating wastewater by using atomized plasma |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |