CN103771636B - Treatment method for culture water based on slightly acidic electrolysis - Google Patents
Treatment method for culture water based on slightly acidic electrolysis Download PDFInfo
- Publication number
- CN103771636B CN103771636B CN201410020815.6A CN201410020815A CN103771636B CN 103771636 B CN103771636 B CN 103771636B CN 201410020815 A CN201410020815 A CN 201410020815A CN 103771636 B CN103771636 B CN 103771636B
- Authority
- CN
- China
- Prior art keywords
- water
- water pump
- ratio
- disinfecting
- liquid mixer
- 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.)
- Active
Links
Abstract
The invention discloses a device for treating culture water based on slightly acidic electrolysis and a treatment method. The device comprises an inlet water pump, a liquid mixer, a disinfection reactor, an internal circulating water pump, a slightly acidic electrolysis treatment tank, a one-way valve and an outlet water pump, wherein one end of the inlet water pump is connected with the culture water to be subjected to disinfection treatment, the other end of the inlet water pump is connected with one input end of the liquid mixer, inlet water is divided into two paths after passing through the disinfection reactor, one path is connected with the outlet water pump, and the other path is connected with the other input end of the liquid mixer through the internal circulating water pump, the slightly acidic electrolysis treatment tank and the one-way valve. The treatment method comprises the steps of controlling a mixing ratio parameter, available chlorine concentration and reaction time, and controlling the concentration of residual chlorine in treated water and the pH value of 6.4-6.9 while effectively killing microbes. The device and the treatment method have the advantages of high efficiency, energy saving, broad spectrum, environmental friendliness and no disinfection byproducts, and can be widely applied to the disinfection link of a water treatment system of drinking water, culture water, swimming pond water, industrial wastewater or the like.
Description
Technical field
The present invention relates to water sterilization treatment unit and treatment process, especially relate to a kind of device based on subacidity electrolysis treatment aquaculture water and treatment process.
Background technology
The object of water treatment utilizes certain physics or chemical process, and the pollution substance in water is separated, or transformed and resolve into nontoxic stable material, and to disinfect be indispensable important step in water treatment technological process.At present, widely used water sterilization technology comprises: the technology such as cholorination, disinfection by chlorine dioxide, ozonization and disinfection by ultraviolet light.
Cholorination is the traditional water sterilization mode be most widely used at present, is generally limited to relatively large water treatment plant and uses.Cholorination can Killing Microorganisms In Water quickly, and cost is not high, but can produce harmful side product in sterilizing process, such as organic chloride, this type of material not only makes water body produce foreign odor and peculiar smell, and toxic side effect and carcinogenesis, can produce serious harm to HUMAN HEALTH.
Dioxide peroxide is a kind of strong oxidizer, under similarity condition, usually germ-killing efficiency more better than chlorine is shown, although dioxide peroxide has application and obvious advantage comparatively widely in water treatment, but dioxide peroxide easily decomposes when meeting light, generate oxygen and chlorine and set off an explosion, and under some condition of water quality, the harmful by-products such as aldehydes, chlorite, micro-halogenide and oxymuriate can be produced.
Ozone has the effect of good killing microorganisms and virus, and sterilizing ability is 600-3000 times of chlorine.In addition, ozone can increase the dissolved oxygen in water, reduces BOD and COD in water, has decolouring to deodorize effect to water body.But ozonization required equipment is huge, flow process is complicated, produces the productive rate lower (1%-2%) of ozone, and power consumption is large, and running cost is very high.Under some condition of water quality, ozonization also can produce the disinfection byproduct (DBP) such as bromate, and ozone is unstable, easily decomposes in water, is difficult to the sterilization effect keeping continuing.
Uv sterilisation is a kind of simple and rapid sterilization method utilizing ultraviolet kill bacteria, the advantage of Ultraviolet Disinfection is obvious, without disinfection byproduct (DBP) risk, obvious economic advantages are had when the little water yield, under very low sterilization dose and shorter residence-time conditions, effectively can kill pathogenic bacterium.But uv sterilisation effect affects by more multifactorial, and the former water of process to be sterilized has to pass through good pre-treatment, and required ultraviolet irradiation dosage is also difficult to clearly, and due to attenuation, sterilization effect is uneven, cannot keep lasting sterilization effect.
As fully visible, although now widely used conventional water treatment disinfection technology, can effectively kill microorganism in water body, reduce microbial safety risk, also have that such as to produce disinfection byproduct (DBP), running cost high or without problems such as Continuous sterilization effects simultaneously.Along with people are to the continuous concern of environmental problem, and the present situation that water pollution is increasingly sharpened in many areas, existing Water Disinfection technology, can not well practical requirement and the public expect.
Summary of the invention
In order to solve Problems existing in background technology, the object of this invention is to provide a kind of device based on subacidity electrolysis treatment aquaculture water and treatment process, subacidity electrolysis treatment technology is applied to disinfecting of aquaculture water.
The technical solution adopted for the present invention to solve the technical problems is:
One, a kind of device based on subacidity electrolysis treatment aquaculture water
Comprise into water water pump, liquid mixer, disinfecting reactor, internal recycle water pump, subacidity electrolysis treatment groove, check valve and effluent water pump; The aquaculture water of disinfecting is received in one end of water inlet water pump, the water inlet the other end of water pump is connected with an input terminus of liquid mixer, two tunnels are divided into after disinfecting reactor, one tunnel connects effluent water pump, and another road is connected with another input terminus of liquid mixer through internal recycle water pump, subacidity electrolysis treatment groove, check valve.
Described subacidity electrolysis treatment groove is without diaphragm electrolytic cell.
Two, a kind for the treatment of process based on subacidity electrolysis treatment aquaculture water
Enter into water water pump by needing the aquaculture water of disinfecting, by the internal recycle loop of liquid mixer, disinfecting reactor, internal recycle water pump, subacidity electrolysis treatment groove, check valve and effluent water pump, subacidity electrolysis treatment is carried out to part aquaculture water, make that there is in water body 10-30mg/L effective chlorine composition, enter liquid mixer from check valve to mix with needing the aquaculture water of disinfecting again, maintain electrolyzer water outlet pH5.0 ~ 6.5 subacidity, and the reaction that carries out disinfection in disinfecting reactor; By to ratio of mixture parameter, effective chlorine density and the control in reaction times, while effective killing microorganisms, the residual chlorine concentration after control treatment in water body and pH6.4 ~ 6.9 are worth.
The described method to ratio of mixture parameter, effective chlorine density and the control in reaction times:
1) aquaculture water of process to be sterilized enters and meets following relation into the flow Q1 of water water pump and the flow Q7 of effluent water pump, and flux unit is cubic meters per minute:
Q1=Q7
2) ratio of the water inlet flow Q1 of water pump and the flow Q4 of internal recycle water pump is defined as ratio of mixture parameter R0, and flux unit is cubic meters per minute, and ratio of mixture parameter R0 meets following relation:
R0= Q4:Q1 =0.1~0.5
3) effective chlorine composition is contained in the water that the water side of subacidity electrolysis treatment groove is flowed out, its effective chlorine density is defined as feature effective chlorine density C0, electrolyzer water outlet pH value is defined as feature pH value, and feature effective chlorine density C0 and feature pH value meet following relation:
C0=10 ~ 30, unit: mg/litre; PH value=5.0 ~ 6.5
4) the volume V3 of disinfecting reactor is defined as characteristic reactive time T with the water inlet flow Q1 of water pump and the ratio of internal recycle pump capacity Q4 sum, and characteristic reactive time T meets following relation, and volume unit is cubic meter, and flux unit is cubic meters per minute:
T=V3:(Q1+Q4)=10 ~ 20, time unit: minute
5) the actual retaining volume V0 of disinfecting reactor in the process of disinfecting is defined as reaction times T0 with the water inlet flow Q1 of water pump and the ratio of internal recycle pump capacity Q4 sum, reaction times T0 meets following relation, volume unit is cubic meter, and flux unit is cubic meters per minute:
T0=V0:(Q1+Q4)=10 ~ 20, unit: minute, and T0≤T
6) the ratio of mixture parameter R0 of device, the product of feature effective chlorine density C0 and reaction times T0 is defined as CT value, and CT value meets following relation:
CT=C0 × R0 × T0=10 ~ 300, unit: milligram minute/liter.
Compared with background technology, the beneficial effect that the present invention has is:
1) time due to disinfection reactions, the pH value of electrolyzer water outlet is subacidity, available chlorine mainly exists with the hypochlorous acid molecular form that sterilization effect is extremely strong, its sterilizing ability is 80-150 times of hypochlorite, compared with other chloride sterilization modes, under the condition of identical effective chlorine density, sterilizing ability is stronger, and sterilization effect is better;
2) in sterilization process, non-stimulated produce are raw, have no adverse effects, to metallic conduit also corrosion-free effect to human body, animal and environment; Do not produce ozone, and the high suboxide of chlorine, do not produce the risk of disinfection byproduct (DBP);
3) disinfection time is short, can not produce antibody by inducing microbial, cause the resistance of microorganism.In sum, technique device of the present invention has efficient, energy-conservation, wide spectrum, environmental protection, advantage without disinfection byproduct (DBP), can be widely used in the sterilizing part in the water treatment systems such as tap water, aquaculture water, swimming-pool water or trade effluent.
Accompanying drawing explanation
Fig. 1 is the liquid water disinfection unit structural representation based on subacidity electrolysis treatment of the present invention.
In figure: water pump of 1, intaking, 2, liquid mixer, 3, disinfecting reactor, 4, internal recycle water pump, 5, subacidity electrolysis treatment groove, 6, check valve, 7, effluent water pump.
Embodiment
Below in conjunction with accompanying drawing and specific examples, the invention will be further described.
As shown in Figure 1, the present invention includes into water water pump 1, liquid mixer 2, disinfecting reactor 3, internal recycle water pump 4, subacidity electrolysis treatment groove 5, check valve 6 and effluent water pump 7; The aquaculture water of disinfecting is received in one end of water inlet water pump 1, the water inlet the other end of water pump 1 is connected with an input terminus of liquid mixer 2, two tunnels are divided into after disinfecting reactor 3, one tunnel connects effluent water pump 7, and another road is connected with another input terminus of liquid mixer 2 through internal recycle water pump 4, subacidity electrolysis treatment groove 5, check valve 6.Check valve 6 makes current can only flow to liquid mixer 2 from subacidity electrolysis treatment groove 5, oppositely then not all right.
Described subacidity electrolysis treatment groove 5 is without diaphragm electrolytic cell; Liquid mixer 2 is threeway; Disinfecting reactor 3 is for having the container of import, outlet.
After process, the pH value of water body is measured by pH meter, and total number of bacterial colony adopts dull and stereotyped computing method to detect, and effective chlorine density adopts iodimetry,iodometry to measure.
Embodiment 1
Ratio of mixture parameter R0=0.1, effective chlorine density C0=10mg/L, reaction times T0=10min, then CT=C0 × R0 × T0=10 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
7cFU/mL, chlorine residue is 0.7mg/L, pH is 6.9.
Embodiment 2
Ratio of mixture parameter R0=0.1, effective chlorine density C0=10mg/L, reaction times T0=20min, then CT=C0 × R0 × T0=20 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
7cFU/mL, chlorine residue is 0.6mg/L, pH is 6.9.
Embodiment 3
Ratio of mixture parameter R0=0.1, effective chlorine density C0=30mg/L, reaction times T0=10min, then CT=C0 × R0 × T0=30 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
6cFU/mL, chlorine residue is 0.91mg/L, pH is 6.9.
Embodiment 4
Ratio of mixture parameter R0=0.1, effective chlorine density C0=30mg/L, reaction times T0=20min, then CT=C0 × R0 × T0=60 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
5cFU/mL, chlorine residue is 0.88mg/L, pH is 6.9.
Embodiment 5
Ratio of mixture parameter R0=0.5, effective chlorine density C0=10mg/L, reaction times T0=10min, then CT=C0 × R0 × T0=50 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
6cFU/mL, chlorine residue is 2.79mg/L, pH is 6.4.
Embodiment 6
Ratio of mixture parameter R0=0.5, effective chlorine density C0=10mg/L, reaction times T0=20min, then CT=C0 × R0 × T0=100 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
5cFU/mL, chlorine residue is 2.31mg/L, pH is 6.5.
Embodiment 7
Ratio of mixture parameter R0=0.5, effective chlorine density C0=30mg/L, reaction times T0=10min, then CT=C0 × R0 × T0=150 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, the total coliform group number that falls is 10 in water
4cFU/mL, chlorine residue is 6.27mg/L, pH is 6.5.
Embodiment 8
Ratio of mixture parameter R0=0.5, effective chlorine density C0=30mg/L, reaction times T0=20min, then CT=C0 × R0 × T0=300 mgmin/L;
Before process, the total coliform group number that falls is 10 in aquaculture water
8cFU/mL, after process, in water, total intestinal bacteria do not detect, and chlorine residue is 5.86mg/L, pH is 6.6.
Claims (1)
1., based on a treatment process for subacidity electrolysis treatment aquaculture water, the device of this treatment process comprises into water water pump (1), liquid mixer (2), disinfecting reactor (3), internal recycle water pump (4), subacidity electrolysis treatment groove (5), check valve (6) and effluent water pump (7); The aquaculture water of disinfecting is received in one end of water inlet water pump (1), the other end of water inlet water pump (1) is connected with an input terminus of liquid mixer (2), two tunnels are divided into after disinfecting reactor (3), one tunnel connects effluent water pump (7), another road is connected with another input terminus of liquid mixer (2) through internal recycle water pump (4), subacidity electrolysis treatment groove (5), check valve (6), and described subacidity electrolysis treatment groove (5) is without diaphragm electrolytic cell;
It is characterized in that: the aquaculture water of being disinfected by needs enters into water water pump, by the internal recycle loop of liquid mixer, disinfecting reactor, internal recycle water pump, subacidity electrolysis treatment groove, check valve and effluent water pump, subacidity electrolysis treatment is carried out to part aquaculture water, make that there is in water body 10-30mg/L effective chlorine composition, enter liquid mixer from check valve to mix with needing the aquaculture water of disinfecting again, maintain electrolyzer water outlet pH5.0 ~ 6.5 subacidity, and the reaction that carries out disinfection in disinfecting reactor; By to ratio of mixture parameter, effective chlorine density and the control in reaction times, while effective killing microorganisms, the residual chlorine concentration after control treatment in water body and pH6.4 ~ 6.9;
The described method to ratio of mixture parameter, effective chlorine density and the control in reaction times:
1) aquaculture water of process to be sterilized enters and meets following relation into the flow Q1 of water water pump and the flow Q7 of effluent water pump, and flux unit is cubic meters per minute:
Q1=Q7
2) ratio of the water inlet flow Q1 of water pump and the flow Q4 of internal recycle water pump is defined as ratio of mixture parameter R0, and flux unit is cubic meters per minute, and ratio of mixture parameter R0 meets following relation:
R0= Q4:Q1 =0.1~0.5
3) effective chlorine composition is contained in the water that the water side of subacidity electrolysis treatment groove is flowed out, its effective chlorine density is defined as feature effective chlorine density C0, electrolyzer water outlet pH value is defined as feature pH value, and feature effective chlorine density C0 and feature pH value meet following relation:
C0=10 ~ 30, unit: mg/litre; PH value=5.0 ~ 6.5
4) the volume V3 of disinfecting reactor is defined as characteristic reactive time T with the water inlet flow Q1 of water pump and the ratio of internal recycle pump capacity Q4 sum, and characteristic reactive time T meets following relation, and volume unit is cubic meter, and flux unit is cubic meters per minute:
T=V3:(Q1+Q4)=10 ~ 20, time unit: minute
5) the actual retaining volume V0 of disinfecting reactor in the process of disinfecting is defined as reaction times T0 with the water inlet flow Q1 of water pump and the ratio of internal recycle pump capacity Q4 sum, reaction times T0 meets following relation, volume unit is cubic meter, and flux unit is cubic meters per minute:
T0=V0:(Q1+Q4)=10 ~ 20, unit: minute, and T0≤T
6) the ratio of mixture parameter R0 of device, the product of feature effective chlorine density C0 and reaction times T0 is defined as CT value, and CT value meets following relation:
CT=C0 × R0 × T0=10 ~ 300, unit: milligram minute/liter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020815.6A CN103771636B (en) | 2014-01-17 | 2014-01-17 | Treatment method for culture water based on slightly acidic electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020815.6A CN103771636B (en) | 2014-01-17 | 2014-01-17 | Treatment method for culture water based on slightly acidic electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103771636A CN103771636A (en) | 2014-05-07 |
| CN103771636B true CN103771636B (en) | 2015-04-15 |
Family
ID=50564474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020815.6A Active CN103771636B (en) | 2014-01-17 | 2014-01-17 | Treatment method for culture water based on slightly acidic electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103771636B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533241B (en) * | 2020-05-08 | 2022-08-02 | 江苏省农业科学院 | Chlorella treatment method based on subacid electrolyzed water |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201240920Y (en) * | 2008-05-09 | 2009-05-20 | 上海恒石环保科技有限公司 | Concomitant disinfection apparatus for water in water pool |
| CN101704564A (en) * | 2009-12-10 | 2010-05-12 | 波鹰(厦门)科技有限公司 | Device and method for purifying and sterilizing swimming pool water |
| CN102329025B (en) * | 2011-09-06 | 2013-05-22 | 叶勤 | Raw water treatment system |
| CN102381791A (en) * | 2011-11-28 | 2012-03-21 | 刘伟 | Equipment for treating organic wastewater through joint of electrolyzation and oxidant |
| US20150027880A1 (en) * | 2012-03-12 | 2015-01-29 | Miraklin Co., Ltd | No membrane electrolytic device |
-
2014
- 2014-01-17 CN CN201410020815.6A patent/CN103771636B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103771636A (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lacasa et al. | Electrochemical disinfection of simulated ballast water on conductive diamond electrodes | |
| Rubio et al. | Comparative effect of simulated solar light, UV, UV/H2O2 and photo-Fenton treatment (UV–Vis/H2O2/Fe2+, 3+) in the Escherichia coli inactivation in artificial seawater | |
| Jyoti et al. | Ozone and cavitation for water disinfection | |
| EP0651730B1 (en) | Method and apparatus for controlling microorganisms | |
| RU2602110C2 (en) | Method and device for water treatment | |
| CN105540761B (en) | A kind of water body disinfection equipment and the method using its progress water body disinfection | |
| CN104150562A (en) | Method for disinfecting filtered water from water plant with cooperation between medium-pressure ultraviolet catalyzing peroxymonosulfate and chloramine | |
| ES2684968T3 (en) | Improvement of the effectiveness of peracids | |
| CN107683261A (en) | Liquid processing system and method | |
| Ofori et al. | Ozone initiated inactivation of Escherichia coli and Staphylococcus aureus in water: Influence of selected organic solvents prevalent in wastewaters | |
| CN102060370B (en) | Method for rapid disinfection of medical wastewater | |
| CN102167464A (en) | Water treatment sterilization method by ultraviolet catalysis hydrogen peroxide matched with chlorine/chloramine | |
| CN111233224A (en) | Treatment method for simultaneously removing nitrogen, phosphorus and antibiotics in mariculture wastewater and sterilizing | |
| WO2017007892A1 (en) | System and method for treating water with a biological based biocide | |
| CN103771636B (en) | Treatment method for culture water based on slightly acidic electrolysis | |
| CN104961274A (en) | Water purification treatment method used for disinfection flocculation and novel composite type water purifier | |
| CN115893612A (en) | Multistage disinfection pretreatment device for marine isolation ward domestic sewage | |
| KR100947847B1 (en) | Device for producing complex sterilizing water | |
| CN204057958U (en) | High efficiency composition chlorine dioxide generating device | |
| CN102070269A (en) | Disinfection method combining ultraviolet with composite disinfectant used for source water of Huangpu River | |
| CN111689627A (en) | Pipe network circulating sterilization and bacteriostasis system for pipeline water purification | |
| CN110885127A (en) | Wastewater treatment method using molecular weakly acidic HOCl water | |
| CN107265725B (en) | Ozone treatment method for pig farm sewage for microalgae cultivation | |
| CN217265253U (en) | Secondary water supply disinfection device for canteen | |
| CN100393633C (en) | Aquatic raising waste water sterilizing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ye Zhangying Inventor after: Pei Luowei Inventor after: Su Guangming Inventor after: He Jinsong Inventor after: Qi Fanyu Inventor after: Liu Peifeng Inventor after: Zhu Songming Inventor before: Ye Zhangying Inventor before: Pei Luowei Inventor before: He Jinsong Inventor before: Qi Fanyu Inventor before: Liu Peifeng Inventor before: Zhu Songming |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YE ZHANGYING PEI LUOWEI HE JINSONG QI FANYU LIU PEIFENG ZHU SONGMING TO: YE ZHANGYING PEI LUOWEI SU GUANGMING HE JINSONG QI FANYU LIU PEIFENG ZHU SONGMING |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |