CN107986407A - A kind of sewage aeration method for disinfection - Google Patents
A kind of sewage aeration method for disinfection Download PDFInfo
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- CN107986407A CN107986407A CN201711369834.XA CN201711369834A CN107986407A CN 107986407 A CN107986407 A CN 107986407A CN 201711369834 A CN201711369834 A CN 201711369834A CN 107986407 A CN107986407 A CN 107986407A
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- sewage
- sterilization gas
- disinfection
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- bacterium
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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 aeration method for disinfection, comprise the following steps：Sewage is discharged into the blast aeration tank in confined space, sterilization gas are full of in confined space；Spray sterilization gas from the aerator of blast aeration tank bottom, continue 34 it is small when.Sewage aeration method for disinfection provided by the invention changes the growing environment of bacterium, upsets the metabolism of bacterium, to realize the purpose for killing bacterium, and this method does not produce harmful side product, and sterilization gas can recycle to be constantly passed through sterilization gas into sewage.
Description
Technical field
The present invention relates to sewage treatment field, more particularly to a kind of sewage aeration method for disinfection.
Background technology
Sterilization is the essential unit process of water treatment procedure, is the important screen for ensureing processing aquatic organism security
Barrier.It must usually be sterilized in drinking water treatment to ensure the bacterium such as disease caused by infectious water indigenous bacteria complete inactivation and suppress it in transmission ＆ distribution water
Grow in pipe network so as to effectively ensure the biological safety of drinking water, municipal wastewater treatment plant processing water carry out reuse or be emitted into by
Bacterium must also be killed before water body to avoid jeopardizing people's health and destroying ecological environment by receiving.
At present, generally use chlorine in oxidation disinfection method in water process, chlorine ammonia, chlorine dioxide, ozone, potassium permanganate,
Bleaching powder and ultraviolet etc..Various methods respectively have advantage and disadvantage：Chlorine bactericidal effect is good, duration length, but can produce a large amount of halogen
For oxidized byproduct；The chlorine ammonia sterilization duration is long, the accessory substance of generation is less, but bactericidal effect is poor；Chlorine dioxide antiseptic
Effect is preferable and the organic by-products of generation are few, but can generate harmful inorganic chlorite etc., in addition, chlorine dioxide
Unstable chemcial property, it is necessary to it is prepared in situ and adds immediately, it is of high cost and inconvenient to use；Ozone instantaneous sterilization effect is good, raw
Into halogenated by-products it is few, but the accessory substances such as formaldehyde, bromate can be generated, and ozone must be prepared in situ generation, use not side
Just；Potassium permanganate will not produce harmful accessory substance, but Disinfection Effect is poor, and cannot function as secondary sterilization agent use；
Bleaching powder usage amount is larger, is usually only used in the case where small towns Small water works or rural area are without water purification facilities are improved；Ultraviolet
Processing bactericidal effect is good and do not produce oxidized byproduct, but the bactericidal effect duration short cannot keep Continuous sterilization effect, purple
Outside line is obtained by live electrion, and high energy consumption one-time investment is big, in addition, ultraviolet sterilization penetration power turbidity etc. in by water
Factor limits, and generally can not be used in sewage disposal.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of sewage aeration method for disinfection, with to sewage
In be constantly passed through sterilization gas, change the growing environment of bacterium, upset the metabolism of bacterium, come realize kill bacterium purpose, and
And this method does not produce harmful side product, sterilization gas can recycle.
The present invention provides a kind of sewage aeration method for disinfection, comprise the following steps：
Sewage, be discharged into the blast aeration tank in confined space by S1, and sterilization gas are full of in confined space；
S2, the aerator ejection sterilization gas from blast aeration tank bottom, when persistently 3-4 is small.
Preferably, the raw material of sterilization gas includes by weight：53-58 parts of nitrogen, 10-12 parts of oxygen, carbon dioxide 13-
15 parts, 4-6 parts of carbon monoxide.
Preferably, oxygen, carbon dioxide, the weight ratio of carbon monoxide are 2-2.5 in sterilization gas:2.5-3:1.
Preferably, the air pressure of the confined space of sterilization gas is full of in S1 in 120-130kPa.
Preferably, the throughput of single aerator is 0.04-0.06m in S23/min。
Preferably, every square metre of blast aeration tank bottom is uniformly distributed 3-4 aerator in S2.
Sewage aeration method for disinfection provided by the invention changes the growth of bacterium to be constantly passed through sterilization gas into sewage
Environment, upsets the metabolism of bacterium, and to realize the purpose for killing bacterium, and this method does not produce harmful side product, sterilization gas
It can recycle.
Sterilization gas provided by the invention prepared according to a certain percentage by nitrogen, oxygen, carbon dioxide, carbon monoxide and
Into, by the sterilization gas be passed through in water substitute water in original gas, the metabolism of bacterium in water can be upset, so as to play antibacterial kill
The effect of bacterium.Whether bacterium needs oxygen to be divided into aerobic bacteria, anaerobic bacteria and facultative anaerobic bacteria according to its metabolism, locates
Bacterium in sterilization gas environment provided by the invention, no matter whether its metabolism needs oxygen, the metabolism of bacterium
All it is suppressed, the speed divide, grown is far smaller than aging, the speed withered away, by bacterium several or tens points
Split the cycle, the bacterial content in water declines.
Sterilization gas provided by the invention do not produce harmful by-products in water process sterilization process, water weight after processing
Newly return in natural environment, in addition to bacterial content changes, other compositions content does not have significant change.In sterilization gas
Raw material is all relatively common gas, and manufacture cost is low, and once manufacture can recycle.
Sterilization gas are sent into sewage by the method for the invention using blast aeration, and restriction blast aeration tank is in be full of and kills
The distribution etc. of the closed environment of bacterium gas and the throughput of blast aeration, aerator, can lift the antibacterial of sterilization gas and kill
Bacterium acts on.Sewage aeration method for disinfection provided by the invention is easy to operate, original aeration tank can be utilized to transform, less investment.
Embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
The present invention provides a kind of sewage aeration method for disinfection, comprise the following steps：
S1, by bacterial content be 2.13 × 106The sewage of a/mL is discharged into the blast aeration tank in confined space, closed
Sterilization gas are full of in space, the air pressure of confined space is in 122kPa；
S2, in blast aeration tank bottom every square metre be uniformly distributed 3.5 aerators, from aerator spray sterilization gas, it is single
The throughput of aerator is 0.052m3/ min, continue 3.7 it is small when.
Wherein, the raw material of sterilization gas includes by weight：56 parts of nitrogen, 11.3 parts of oxygen, 14.2 parts of carbon dioxide, one
4.8 parts of carbonoxide.
Embodiment 2
The present invention provides a kind of sewage aeration method for disinfection, comprise the following steps：
S1, by bacterial content be 3.25 × 105The sewage of a/mL is discharged into the blast aeration tank in confined space, closed
Sterilization gas are full of in space, the air pressure of confined space is in 128kPa；
S2, in blast aeration tank bottom every square metre be uniformly distributed 3.1 aerators, from aerator spray sterilization gas, it is single
The throughput of aerator is 0.057m3/ min, continue 3.4 it is small when.
Wherein, the raw material of sterilization gas includes by weight：54 parts of nitrogen, 10.4 parts of oxygen, 14.7 parts of carbon dioxide, one
5.1 parts of carbonoxide.
Embodiment 3
The present invention provides a kind of sewage aeration method for disinfection, comprise the following steps：
S1, by bacterial content be 8.76 × 104The sewage of a/mL is discharged into the blast aeration tank in confined space, closed
Sterilization gas are full of in space, the air pressure of confined space is in 124kPa；
S2, in blast aeration tank bottom every square metre be uniformly distributed 3.7 aerators, from aerator spray sterilization gas, it is single
The throughput of aerator is 0.042m3/ min, continue 3.1 it is small when.
Wherein, the raw material of sterilization gas includes by weight：55 parts of nitrogen, 11.7 parts of oxygen, 13.8 parts of carbon dioxide, one
5.4 parts of carbonoxide.
Embodiment 4
Sewage aeration method for disinfection in embodiment 1, wherein, the raw material of sterilization gas can also include by weight：Nitrogen 53
Part, 11.9 parts of oxygen, 14.8 parts of carbon dioxide, 5.7 parts of carbon monoxide.
Embodiment 5
Sewage aeration method for disinfection in embodiment 1, wherein, the raw material of sterilization gas can also include by weight：Nitrogen 57
Part, 10.8 parts of oxygen, 13.1 parts of carbon dioxide, 4.2 parts of carbon monoxide.
Embodiment 1-5 sewage aerations sterilize result：
| Raw sewage bacterial content (a/mL) | Bacterial content (a/mL) after sterilization | |
| Embodiment 1 | 2.13×106 | 1.7 |
| Embodiment 2 | 3.25×105 | 0.87 |
| Embodiment 3 | 8.76×104 | 1.02 |
| Embodiment 4 | 2.13×106 | 1.6 |
| Embodiment 5 | 2.13×106 | 2.0 |
It can be seen that from above-mentioned experimental result and can effectively be killed using sewage aeration method for disinfection provided by the invention in sewage
Bacterium, bacterium kill rate is more than 99.99%.
The detection of bacterium number of the present invention uses plate colony count.
Sewage involved in the present invention can be sanitary sewage, trade effluent or aquaculture sewage, be preferably bacterial content
8.5 × 104 -2.3×106A/mL, suspended matter（SS）In the sanitary sewage of below 50mg/L.
Blast aeration tank involved in present invention blast aeration tank known to the public, i.e., including pond body, aerating system and
Intake-outlet three parts form.Pond body is generally built up with armored concrete, and flat shape can be rectangle, square and circular
Deng pond body depth is generally 4.5m.Aerating system mainly includes Roots blower and aerator.Roots blower and aerator
As long as selection can realize the technological requirement that the present invention limits, it is notable that what the present invention limited is full of sterilization gas
The air pressure of the confined space of body is not standard atmospheric pressure, but 120-130kPa, so to be selected when selecting Roots blower
The air blower of the sum of closed environment atmospheric pressure, the aeration tank depth of water, line loss can be reached by selecting pressure, or appropriate reduce is aerated
The depth of water in pond adapts to Roots blower.The JAS195 Roots of preferably Changsha Blowers Factory Co., Ltd. production of the invention from
Scheming and the QMZM300 corundum micropore aerators of the very U.S. water conservancy project plastics Co., Ltd production of Yixing City.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of sewage aeration method for disinfection, it is characterised in that comprise the following steps：
Sewage, be discharged into the blast aeration tank in confined space by S1, and sterilization gas are full of in confined space；
S2, the aerator ejection sterilization gas from blast aeration tank bottom, when persistently 3-4 is small.
2. a kind of sewage aeration method for disinfection according to claim 1, it is characterised in that the raw material of the sterilization gas is pressed
Parts by weight include：53-58 parts of nitrogen, 10-12 parts of oxygen, 13-15 parts of carbon dioxide, 4-6 parts of carbon monoxide.
A kind of 3. sewage aeration method for disinfection according to claim 2, it is characterised in that oxygen in the sterilization gas,
Carbon dioxide, the weight ratio of carbon monoxide are 2-2.5:2.5-3:1.
4. a kind of sewage aeration method for disinfection according to claim 1, it is characterised in that sterilization gas are full of in the S1
Confined space air pressure in 120-130kPa.
A kind of 5. sewage aeration method for disinfection according to claim 1, it is characterised in that single aerator in the S2
Throughput is 0.04-0.06m3/min。
A kind of 6. sewage aeration method for disinfection according to claim 1, it is characterised in that blast aeration bottom of pond in the S2
Every square metre of portion is uniformly distributed 3-4 aerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369834.XA CN107986407A (en) | 2017-12-19 | 2017-12-19 | A kind of sewage aeration method for disinfection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369834.XA CN107986407A (en) | 2017-12-19 | 2017-12-19 | A kind of sewage aeration method for disinfection |
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| Publication Number | Publication Date |
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| CN107986407A true CN107986407A (en) | 2018-05-04 |
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| CN201711369834.XA Pending CN107986407A (en) | 2017-12-19 | 2017-12-19 | A kind of sewage aeration method for disinfection |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146432A (en) * | 1996-08-19 | 1997-04-02 | 李开春 | Continuous type air aeration sewage treatment method |
| CN1425301A (en) * | 2002-05-28 | 2003-06-25 | 路文裕 | No-pollution gas used as field pesticide and sterilizer and using method |
| CN1704356A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sewage counteraction and sterilization system |
| CN201062226Y (en) * | 2007-07-09 | 2008-05-21 | 文中智 | Medical wastewater treatment device |
| CA2836687A1 (en) * | 2013-12-11 | 2015-06-11 | Aquahydrex Pty Ltd | Electrochemical cell for water treatment |
| CN204951712U (en) * | 2015-08-27 | 2016-01-13 | 江苏爱雅康舟电器科技有限公司 | Multi -functional disinfection and sterilization device's optimization disinfection space |
| CN106336093A (en) * | 2016-11-22 | 2017-01-18 | 俞潮军 | Efficient sterilizing technology for printing and dyeing wastewater |
-
2017
- 2017-12-19 CN CN201711369834.XA patent/CN107986407A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146432A (en) * | 1996-08-19 | 1997-04-02 | 李开春 | Continuous type air aeration sewage treatment method |
| CN1425301A (en) * | 2002-05-28 | 2003-06-25 | 路文裕 | No-pollution gas used as field pesticide and sterilizer and using method |
| CN1704356A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sewage counteraction and sterilization system |
| CN201062226Y (en) * | 2007-07-09 | 2008-05-21 | 文中智 | Medical wastewater treatment device |
| CA2836687A1 (en) * | 2013-12-11 | 2015-06-11 | Aquahydrex Pty Ltd | Electrochemical cell for water treatment |
| CN204951712U (en) * | 2015-08-27 | 2016-01-13 | 江苏爱雅康舟电器科技有限公司 | Multi -functional disinfection and sterilization device's optimization disinfection space |
| CN106336093A (en) * | 2016-11-22 | 2017-01-18 | 俞潮军 | Efficient sterilizing technology for printing and dyeing wastewater |
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Application publication date: 20180504 |