CN104803512A - Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device - Google Patents
Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device Download PDFInfo
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- CN104803512A CN104803512A CN201510194749.9A CN201510194749A CN104803512A CN 104803512 A CN104803512 A CN 104803512A CN 201510194749 A CN201510194749 A CN 201510194749A CN 104803512 A CN104803512 A CN 104803512A
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- ceramic
- water
- ceramic membrane
- film
- filter
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention relates to an ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment device. The water treatment device comprises a gas-liquid mixing and conveying device and a ceramic membrane filter, wherein the gas-liquid mixing and conveying device is connected with an ozone adding port and introduces a water body dissolved with ozone into the bottom of the ceramic membrane filter from the bottom through a water inlet pipeline; a plurality of vertically-arranged ceramic membrane tubes are arranged inside the ceramic membrane filter; the water inlet pipeline is communicated with the ceramic membrane tubes; the top end of the ceramic membrane filter is sealed; a water outlet is formed in the side wall of the ceramic membrane filter. The ceramic membrane filter of the water treatment device adopts a modular structure; each module comprises a group of tubular or multi-channel ceramic membrane tubes, and all the modules can be connected in parallel and are flexibly arranged according to the actual amount of water. The invention simultaneously discloses an ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method.
Description
Technical field
The present invention relates to a kind of catalytic ozonation self-cleaning ceramic film water treatment process and device, for the treatment of organic wastewater with difficult degradation thereby, belong to water treatment field.
Background technology
Along with the quickening of industrialization and urbanization, current China shortage of water resources and pollution of waterhead problem are on the rise, and its primary pollution source is trade effluent, sanitary sewage, agricultural effluent etc., and wherein the harm of trade effluent is the most serious.In recent years, Industrial Wastewater Treatment Facilities Construction is constantly accelerated, but the waste water after traditional biochemical processing process process, still contain many Persistent organic pollutants, bacterium and heavy metal etc. to the poisonous and hazardous material of human body, and do not reach recycle water standard.
Catalytic ozonation technology utilizes ozone under catalyst action, produce hydroxyl radical free radical oxygenolysis organic pollutants, because the oxidation capacity of hydroxyl radical free radical is extremely strong, most Persistent organic pollutants Quick Oxidation can be resolved into low toxicity or nontoxic small-molecule substance, even Direct Resolution becomes CO
2and H
2o.Compared with simple ozone oxidation, catalytic ozonation technology can improve utilization ratio and the oxidation capacity of ozone, is applicable to the advanced treatment of trade effluent.But catalytic ozonation technology is faced with catalyzer easily to run off, and powder catalyst recovery is difficult, the problems such as catalytic ozonation tower floor space is large, capital cost is high.
Ceramic membrane filter technology is with its efficient turbidity removal performance, and the advantage such as ceramic membrane itself is high temperature resistant, chemical stability good, physical strength is high, acidproof, alkaline-resisting, organic solvent-resistant, is applied in industrial effluent reusing field.But the same with other membrane techniquies, ceramic membrane is also faced with the flux depression that fouling membrane causes, needs to carry out back flushing frequently, not only have a strong impact on treatment effect, increase energy consumption simultaneously.
Summary of the invention
The catalyzer faced for solving catalytic ozonation technology easily runs off, powder catalyst recovery is difficult, catalytic ozonation tower floor space is large, capital cost is high, and the problem such as the membrane flux that causes because of fouling membrane of ceramic membrane filter technology and processing efficiency decline, need frequent backwash, energy consumption large, the present invention proposes the water treatment system that a kind of catalytic ozonation technology combines with self-cleaning ceramic membrane technique.
For achieving the above object, the present invention carrys out specific implementation by the following technical programs:
A kind of catalytic ozonation self-cleaning ceramic membrane water treatment device, comprise gas-liquid mixed e Foerderanlage, purpose ceramic-film filter, described gas-liquid mixed e Foerderanlage adds mouth with ozone and is connected, the water body being dissolved with ozone is passed into the bottom of described purpose ceramic-film filter by described gas-liquid mixed e Foerderanlage from bottom by suction culvert, the inside of described purpose ceramic-film filter is provided with several ceramic-film tubes vertically arranged, described suction culvert communicates with described ceramic-film tube, and the top closure of described purpose ceramic-film filter, the sidewall of described purpose ceramic-film filter has water outlet, draw for filtering rear clear water.
The tube wall of described ceramic-film tube gathers micropore, and under pressure, the water inlet of mixing ozone is under the effect of external pressure, and the micropore permeation on ceramic-film tube, to filtration chamber, is drawn through water outlet.Through ceramic membrane filter, in water, most suspended substance and oil molecule are removed substantially.
Described gas-liquid mixed e Foerderanlage is preferably gas-liquid mixing pump.
Preferably, the tube wall of described ceramic-film tube is coated with ozone catalyst, the preferred titanium manganese of described ozone catalyst or titanium cerium, under flow action, ozone catalyst with the ozone generation catalytic oxidation in water, can decompose a part of impurity be attached on ceramic-film tube, decelerating membrane pollution.
The suction culvert of described purpose ceramic-film filter is provided with tensimeter, in order to detect intake pressure, when the pressure reduction of water-in increases to set(ting)value, carries out back flushing, to ensure the filter effect of purpose ceramic-film filter.
Further, described catalytic ozonation self-cleaning ceramic membrane water treatment device, also comprise back-purge system, described back-purge system comprises water tank and backwash pump, the water-in of described water tank is connected with the water outlet of described purpose ceramic-film filter, and the water outlet of described water tank is connected with the back flushing water-in on described purpose ceramic-film filter by described backwash pump.
Described back flushing water-in is positioned at middle part or the bottom of described purpose ceramic-film filter.
Further, described catalytic ozonation self-cleaning ceramic membrane water treatment device, also comprise reflux cycle system, described reflux cycle system comprises coarse filter and Buffer Pool, the entrance of described coarse filter is connected with the water outlet of secondary settling bowl, the outlet of described coarse filter is connected with the entrance of described Buffer Pool, the outlet of described Buffer Pool is connected with the water-in of described gas-liquid mixed e Foerderanlage, the sidewall of described purpose ceramic-film filter is provided with refluxing opening, described refluxing opening is communicated with the entrance of described coarse filter or the entrance of described Buffer Pool by circulation line, and on circulation line, be provided with relief valve.
Filter screen in coarse filter can block the impurity such as suspended substance, particulate matter in water, reduces raw water turbidity, the ceramic-film tube of available protecting rear end.
The water of a part in purpose ceramic-film filter is back in front end Buffer Pool or coarse filter by circulation line by backflow buffering system, increases system flow rate, improves the processing efficiency of system.
The height of described refluxing opening is lower than the height of described water outlet.
Further, the height of described back flushing water-in is lower than the height of described refluxing opening.
Described circulation line is provided with concentrated water discharge mouth, in order to be discharged via concentrated water discharge mouth by the dense water after back flushing.
A kind of catalytic ozonation self-cleaning ceramic film water treatment process, purpose ceramic-film filter is sent into after being mixed with water by ozone by gas-liquid mixed e Foerderanlage, the water inlet of mixing ozone is under the effect of external pressure, and the micropore permeation on ceramic-film tube, to filtration chamber, is drawn through water outlet.Through ceramic membrane filter, in water, most suspended substance and oil molecule are removed substantially; Under flow action, partial impurities can be attached to ceramic membrane filter tube-surface, and the tube wall of described ceramic-film tube is coated with ozone catalyst, with the ozone generation catalytic oxidation in water, can decompose a part of impurity be attached on ceramic-film tube, decelerating membrane pollution.
The method being added dipping-lift by colloidal sol-gel applies ozone catalyst on commercial enamel film, ceramic membrane is made to have catalytic ozonation and " automatically cleaning " function concurrently, effectively slow down pollutent in the accumulation of film surface and blocking, reduce fouling membrane on the one hand, improve ceramic-film tube intensity and Membrane Filtration Flux on the other hand, have certain removal effect to light concentration organic pollutant simultaneously.
Purpose ceramic-film filter of the present invention adopts modular construction, and each module comprises one group of tubulose or multichannel ceramic film pipe, is connected, arrange flexibly according to actual amount of water between module by parallel way.
Ozone of the present invention is fully contacted with water inlet by gas-liquid mixing pump, ensures the utilising efficiency of ozone.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is structure iron of the present invention.
Fig. 2 is the sectional view of purpose ceramic-film filter.
In figure: 1, gas-liquid mixed e Foerderanlage; 2, purpose ceramic-film filter; 3, ceramic-film tube; 4, ozone adds mouth; 5,11, suction culvert; 12, water outlet; 13, tensimeter; 14, back flushing water-in; 15, refluxing opening; 21, water tank; 22, backwash pump; 31, coarse filter; 32, Buffer Pool; 33, lift pump; 34, circulation line; 35, relief valve; 36, concentrated water discharge mouth.
Embodiment
As shown in Figure 1-2, a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device described in the present embodiment, comprise gas-liquid mixed e Foerderanlage 1, purpose ceramic-film filter 2, described gas-liquid mixed e Foerderanlage 1 and ozone add mouth 4 and are connected, the water body being dissolved with ozone is passed into the bottom of described purpose ceramic-film filter 2 by described gas-liquid mixed e Foerderanlage 1 from bottom by suction culvert 11, the inside of described purpose ceramic-film filter 2 is provided with several ceramic-film tubes 3 vertically arranged, described suction culvert 11 communicates with described ceramic-film tube 3, and the top closure of described purpose ceramic-film filter 2, the sidewall of described purpose ceramic-film filter 2 has water outlet 12, draw for the clear water after filtering.
The tube wall of described ceramic-film tube 3 gathers micropore, and under pressure, the water inlet of mixing ozone is under the effect of external pressure, and the micropore permeation on ceramic-film tube, to filtration chamber, is drawn through water outlet.Through ceramic membrane filter, in water, most suspended substance and oil molecule are removed substantially.
Described gas-liquid mixed e Foerderanlage 1 is preferably gas-liquid mixing pump.
Preferably, the tube wall of described ceramic-film tube 3 is coated with ozone catalyst, the preferred titanium manganese of described ozone catalyst or titanium cerium, under flow action, ozone catalyst with the ozone generation catalytic oxidation in water, can decompose a part of impurity be attached on ceramic-film tube, decelerating membrane pollution.
The suction culvert of described purpose ceramic-film filter is provided with tensimeter 13, in order to detect intake pressure, when the pressure reduction of water-in increases to set(ting)value, carries out back flushing, to ensure the filter effect of purpose ceramic-film filter.
Further, described catalytic ozonation self-cleaning ceramic membrane water treatment device, also comprise back-purge system, described back-purge system comprises water tank 21 and backwash pump 22, the water-in of described water tank 21 is connected with the water outlet 12 of described purpose ceramic-film filter, and the water outlet of described water tank 21 is connected with the back flushing water-in 14 on described purpose ceramic-film filter 2 by described backwash pump 22.
Described back flushing water-in is positioned at middle part or the bottom of described purpose ceramic-film filter.
Further, described catalytic ozonation self-cleaning ceramic membrane water treatment device, also comprise reflux cycle system, described reflux cycle system comprises coarse filter 31 and Buffer Pool 32, the described entrance of coarse filter 31 is connected with the water outlet of second pond, and be provided with lift pump 33 at water outlet, the outlet of described coarse filter 31 is connected with the entrance of described Buffer Pool 32, the outlet of described Buffer Pool 32 is connected with the water-in of described gas-liquid mixed e Foerderanlage 1, the sidewall of described purpose ceramic-film filter 2 is provided with refluxing opening 15, described refluxing opening 15 is communicated with the entrance of described coarse filter 31 or the entrance of described Buffer Pool 32 by circulation line 34, and on circulation line, be provided with relief valve 35.
Filter screen in coarse filter 31 can block the impurity such as suspended substance, particulate matter in water, reduces raw water turbidity, the ceramic-film tube of available protecting rear end.
The water of a part in purpose ceramic-film filter 2 is back in front end Buffer Pool or coarse filter by circulation line by backflow buffering system, increases system flow rate, improves the processing efficiency of system.
The height of described refluxing opening 15 is lower than the height of described water outlet 12.
Further, the height of described back flushing water-in 14 is lower than the height of described refluxing opening 15.
Described circulation line is provided with concentrated water discharge mouth 36, in order to be discharged via concentrated water discharge mouth by the dense water after back flushing.
A kind of catalytic ozonation self-cleaning ceramic film water treatment process, purpose ceramic-film filter is sent into after being mixed with water by ozone by gas-liquid mixed e Foerderanlage, the water inlet of mixing ozone is under the effect of external pressure, and the micropore permeation on ceramic-film tube, to filtration chamber, is drawn through water outlet.Through ceramic membrane filter, in water, most suspended substance and oil molecule are removed substantially; Under flow action, partial impurities can be attached to ceramic membrane filter tube-surface, and the tube wall of described ceramic-film tube is coated with ozone catalyst, with the ozone generation catalytic oxidation in water, can decompose a part of impurity be attached on ceramic-film tube, decelerating membrane pollution.
The method being added dipping-lift by colloidal sol-gel applies ozone catalyst on commercial enamel film, ceramic membrane is made to have catalytic ozonation and " automatically cleaning " function concurrently, effectively slow down pollutent in the accumulation of film surface and blocking, reduce fouling membrane on the one hand, improve ceramic-film tube intensity and Membrane Filtration Flux on the other hand, have certain removal effect to light concentration organic pollutant simultaneously.
Purpose ceramic-film filter of the present invention adopts modular construction, and each module comprises one group of tubulose or multichannel ceramic film pipe, is connected, arrange flexibly according to actual amount of water between module by parallel way.
Ozone of the present invention is fully contacted with water inlet by gas-liquid mixing pump, ensures the utilising efficiency of ozone.
Claims (10)
1. a catalytic ozonation self-cleaning ceramic membrane water treatment device, comprise gas-liquid mixed e Foerderanlage, purpose ceramic-film filter, it is characterized in that, described gas-liquid mixed e Foerderanlage adds mouth with ozone and is connected, the water body being dissolved with ozone is passed into the bottom of described purpose ceramic-film filter by described gas-liquid mixed e Foerderanlage from bottom by suction culvert, the inside of described purpose ceramic-film filter is provided with several ceramic-film tubes vertically arranged, described suction culvert communicates with described ceramic-film tube, and the top closure of described purpose ceramic-film filter, the sidewall of described purpose ceramic-film filter has water outlet, the water inlet of mixing ozone is under the effect of external pressure, micropore permeation on ceramic-film tube is to filtration chamber, draw through water outlet.
2. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 1, it is characterized in that, described gas-liquid mixed e Foerderanlage is preferably gas-liquid mixing pump.
3. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 1, is characterized in that, the tube wall of described ceramic-film tube is coated with ozone catalyst, the preferred titanium manganese of described ozone catalyst or titanium cerium.
4. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 1, it is characterized in that, the suction culvert of described purpose ceramic-film filter is provided with tensimeter, in order to detect intake pressure, when the pressure of water-in increases to set(ting)value, carry out back flushing.
5. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 1, it is characterized in that, also comprise back-purge system, described back-purge system comprises water tank and backwash pump, the water-in of described water tank is connected with the Graceful mouth of a river of described purpose ceramic-film filter, and the water outlet of described water tank is connected with the back flushing water-in on described purpose ceramic-film filter by described backwash pump.
6. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 5, it is characterized in that, described back flushing water-in is positioned at middle part or the bottom of described purpose ceramic-film filter.
7. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as described in claim 1 or 5, it is characterized in that, also comprise reflux cycle system, described reflux cycle system comprises coarse filter and Buffer Pool, the entrance of described coarse filter is connected with the water outlet of second pond, the outlet of described coarse filter is connected with the entrance of described Buffer Pool, the outlet of described Buffer Pool is connected with the water-in of described gas-liquid mixed e Foerderanlage, the sidewall of described purpose ceramic-film filter is provided with refluxing opening, described refluxing opening is communicated with the entrance of described coarse filter or the entrance of described Buffer Pool by circulation line, and on circulation line, be provided with relief valve.
8. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 7, is characterized in that, the height of described refluxing opening is lower than the height of described water outlet.
9. a kind of catalytic ozonation self-cleaning ceramic membrane water treatment device as claimed in claim 7, is characterized in that, the height of described back flushing water-in is lower than the height of described refluxing opening.
10. a catalytic ozonation self-cleaning ceramic film water treatment process, purpose ceramic-film filter is sent into after being mixed with water by ozone by gas-liquid mixed e Foerderanlage, the water inlet of mixing ozone is under the effect of external pressure, micropore permeation on ceramic-film tube is to filtration chamber, draw through water outlet, through ceramic membrane filter, in water, most suspended substance and oil molecule are removed substantially; Under flow action, partial impurities can be attached to ceramic membrane filter tube-surface, and the tube wall of described ceramic-film tube is coated with ozone catalyst, with the ozone generation catalytic oxidation in water, can decompose a part of impurity be attached on ceramic-film tube, decelerating membrane pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194749.9A CN104803512A (en) | 2015-04-21 | 2015-04-21 | Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510194749.9A CN104803512A (en) | 2015-04-21 | 2015-04-21 | Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174615A (en) * | 2015-09-08 | 2015-12-23 | 邓万军 | Treatment device and treatment method of industrial wastewater |
| CN106830283A (en) * | 2017-02-16 | 2017-06-13 | 南京大学 | A kind of ceramic membrane couples the drinking water sterilization device of ozone catalytic |
| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
| CN113023966A (en) * | 2021-03-17 | 2021-06-25 | 浙江工商大学 | Electro-catalysis-ozone-membrane filtration three-in-one wastewater treatment device |
| CN113318608A (en) * | 2021-05-17 | 2021-08-31 | 浙江理工大学 | Dynamically catalyzed water treatment ceramic membrane and application thereof |
| CN113880229A (en) * | 2021-09-28 | 2022-01-04 | 中铁第一勘察设计院集团有限公司 | System for treating oily wastewater by using flat ceramic membrane |
| CN114835306A (en) * | 2022-06-10 | 2022-08-02 | 苏州新能环境技术股份有限公司 | High-difficulty wastewater treatment method based on ozone and ceramic membrane |
| CN115477420A (en) * | 2021-05-31 | 2022-12-16 | 中国石油化工股份有限公司 | Polymer-containing oil field wastewater treatment method and treatment device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174615A (en) * | 2015-09-08 | 2015-12-23 | 邓万军 | Treatment device and treatment method of industrial wastewater |
| CN106830283A (en) * | 2017-02-16 | 2017-06-13 | 南京大学 | A kind of ceramic membrane couples the drinking water sterilization device of ozone catalytic |
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| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
| CN113023966A (en) * | 2021-03-17 | 2021-06-25 | 浙江工商大学 | Electro-catalysis-ozone-membrane filtration three-in-one wastewater treatment device |
| CN113318608A (en) * | 2021-05-17 | 2021-08-31 | 浙江理工大学 | Dynamically catalyzed water treatment ceramic membrane and application thereof |
| CN115477420A (en) * | 2021-05-31 | 2022-12-16 | 中国石油化工股份有限公司 | Polymer-containing oil field wastewater treatment method and treatment device |
| CN115477420B (en) * | 2021-05-31 | 2024-02-13 | 中国石油化工股份有限公司 | Polymer-containing oilfield wastewater treatment method and treatment device |
| CN113880229A (en) * | 2021-09-28 | 2022-01-04 | 中铁第一勘察设计院集团有限公司 | System for treating oily wastewater by using flat ceramic membrane |
| CN114835306A (en) * | 2022-06-10 | 2022-08-02 | 苏州新能环境技术股份有限公司 | High-difficulty wastewater treatment method based on ozone and ceramic membrane |
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Application publication date: 20150729 |