CN203890194U - Sewage treatment equipment for continuous ozone reaction tower - Google Patents
Sewage treatment equipment for continuous ozone reaction tower Download PDFInfo
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- CN203890194U CN203890194U CN201420223533.1U CN201420223533U CN203890194U CN 203890194 U CN203890194 U CN 203890194U CN 201420223533 U CN201420223533 U CN 201420223533U CN 203890194 U CN203890194 U CN 203890194U
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- ozone
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Abstract
The utility model discloses sewage treatment equipment for a continuous ozone reaction tower, belonging to the field of environmental protection of shale gas, industrial sewage and medical sewage. The sewage treatment equipment is characterized in that more than two combined towers are adopted for combined continuous decontamination, and pretreated sewage is delivered to a continuous ozone mixing tower through a water inlet (1) and connected with an inlet (1) of a following tower through a water outlet (3), namely that the sewage sequentially enters the following tower in a series form. Ozone enters an ozone inlet (8) at the bottom of each ozone tower through a main ozone distribution pipe (7) and oxidizes the sewage in each tower through an ozone exhaust pipe or a micropore exhaust disk (10), the sewage is continuously sterilized and decontaminated through a plurality of ozone reaction towers till the purposes of decontamination and sterilization are achieved, and the effluent is delivered to a clean water tank (6) through a water outlet (3) of the final tower.
Description
Technical field
This technology belongs to shale gas and returns sewer, oilfield sewage, coal chemical industry sewage, medical sewage, and municipal effluent and pure water purification environmental-protection process field.
Background technology
China's shale gas exploitation, also in the starting stage, is mainly to utilize hydraulic fracturing technology to carry out the exploitation of shale gas at present.The of the fracturing fluid sewer that returns contains tens kinds of organic compound and mineral composition, by prior art means, is difficult to reach wanting of environmental protection treatment.
Equally, drilling sewage in oil field is also to have added various chemical combination medicaments, and contains lubricant component and mineral composition, and the waste water after processing by traditional technology also will carry out advanced treatment could meet the requirement of environmental protection.
In recent years, fast development due to Coal Chemical Industry, corresponding sewage disposal also becomes the object of growing interest, and residual compound is very complicated, in comprehensive wastewater COD generally in about 5000mg/l, ammonia nitrogen is at 200～500mg/l, the contained organic pollutants of waste water comprises heterogeneous ring compound of phenols, polycyclc aromatic compound and nitrogenous, oxygen, sulphur etc., is a kind of trade effluent that typically contains the organic compound of difficult degradation.
Hospital sewage mainly comes from various wards, particularly various lazaretto wards, Operation theatre, laundry institute sewer, except containing a large amount of sex pheromones, parasitic ovum is if roundworm egg and various virus are as outside hepatitis virus, pulmonary tuberculosis bacterium and dysentery bacillus etc., also contain a large amount of pollutents, wherein organic substance accounts for 60% left and right of total amount of pollutants discharge, and insoluble matter accounts for 40% of total amount.
The processing of above-mentioned shale gas, Coal Chemical Industry, medical and chemical engineering sewage if carry out disinfection decontamination with chloroform, tetracol phenixin, vinylchlorid, trieline, chlorophenols, will produce carcinogenic substance after use, can produce secondary pollution.And ozone is strong oxidizer, after use, can carry out natural decomposition to hazardous compound, do not there is carinogenicity and other harm, the molecular chain of harmful poisonous compound is had to the efficient oxidation decomposition function.Can carry out non-harmful environmental protection treatment to industrial sewage, municipal effluent, mud and clean water.
Ozone has stronger oxidation capacity than liquid chlorine, chlorinated lime, dioxide peroxide, can kill all bacteriums of comprising chlorine and can not thoroughly killing, virus etc. than the fast 600-3000 of chlorine speed doubly; The oxidation precipitations such as some heavy metal ion Pb, Hg can be reached to separated object.
But existing ozonize technology is not well developed.China existing part of contaminated water treatment plant also brings into use ozone to dispose of sewage, and in square or circular sewage lagoon bottom, having placed several exactly has the ozone sparger of gas orifice, so not only waste ozone, and sterilization effect is bad.
Patent 98800148.9: air ozone mixing tank and ozone mist generating unit, introduction be a kind of ozone mixing tank, make a big difference with the technical program.
Patent 01126356.3: ozone water device, introduced a kind of clean water ozone treatment apparatus of single tower structure, also there is very large difference with the technical program.
Summary of the invention
The present invention adopts plural combination ozone reaction tower to carry out combined continuous sterilization decomposition scrubbing, constantly the harmful chemical residue in waste water is decomposed to greatest extent.Theing contents are as follows of its invention:
Sewage is carried out before ozonize, must carry out preliminary pre-treatment or carry out after the biological treatment of MBR film.Pass through the preliminary pretreated sewage such as sand setting, air supporting, or the output water after MBR Membrane Bioreactor for Wastewater Treatment, by water-in (1), be transported to continuous ozone mixing column, and be connected with the entrance of tower (1) below through water outlet (3), adopt the form of series connection to enter into successively follow-up tower, through the water outlet (3) of a final tower, be transported to clean water basin (6).Ozone enters the ozone entrance (8) of each ozone tower bottom by the main distribution pipe of ozone (7), through ozone vapor pipe or micropore exhaust dish (10), carry out oxidizing reaction with the sewage in each tower, by the continuous virus killing scrubbing of a plurality of ozone reaction towers, to reach scrubbing object.Sewage gangway can bottom in and top out, also can upper entering and lower leaving.
Sewage and ozone are in each ozone mixing column after oxidizing reaction, and a small amount of residual ozone is discharged into exhaust gas treating device (5) from the top exit (2) of tower through manifold trunk (4), focuses on rear discharge.
The flow of each reaction tower sewage inlet (1) can be constant, and the flow of all ozone inlet tubes of each tower (8) cannot be invariable, must successively successively decrease on request.Therefore, ozone under meter (9) is installed between ozone entrance (8) and ozone distribution pipe, under meter (9) also can be directly installed on ozone reactor, the corresponding ozone reaction tower of each under meter, and object is to control and regulate the concrete flow of ozone.
The difference of altitude of the sewage inlet of all mixing columns (1) and ozone vapor pipe or micropore exhaust dish (10) should >=1500mm, to guarantee that objectionable constituent in ozone and water have the time of abundant hybrid reaction.The middle part of ozone reaction tower is provided with tower tray or filler, to guarantee that ozone can play the effect of fully reacting with water.
When carrying out the continuous sewage treatment of ozone, the water of the tower of flowing through is series connection, and the entrance of a rear tower is all connected with the outlet of previous tower.And ozone inlet tube (8) is parallel connection with tower, ozone enters into respectively each tower bottom.
In the bottom of mixing column, be provided with mud discharging mouth (11), through collecting tubule (12), be discharged into sludge treatment pond (13).
Accompanying drawing explanation
Fig. 1, tower continuous ozone mixing, wherein:
Part 1 is sewage inlet
Part 2 is exhaust port
Part 3 is water outlet
Part 4 is tail gas collecting tubule
Part 5 is exhaust gas treating device
Part 6 is clean water basin
Part 7 is the main distribution pipe of ozone
Part 8 is ozone inlet tube
Part 9 is ozone under meter
Part 10 is ozone vapor pipe or micropore exhaust dish
Part 11 is mud discharging outlet
Part 12 is mud discharging collecting tubule
Part 13 is sludge treatment pond
Part 14 is filler or tower tray
Embodiment
Case: shale gas returns the processing of sewer
The first step: sewage pre-treatment
Return effluent or industrial sewage pre-treatment premenstruum by shale gas is of the fracturing fluid, or desilting or air supporting, and pull down water surface scum silica frost, pretreated sewage is carried out to water-quality test, to determine the various indication ranges in sewage.
Second step: MBR microbial film treatment process
To, through pretreated sewage transport to MBR biofilm reactor, through anoxic pond or anaerobic pond, enter into membrane biological reaction pond.After MBR microbial film is processed, the effluent quality of water will reach < < urban sewage reutilization water for scenic environment use water quality > > sight water for scenic environment use standard (GB/T18921-2002).
Because the organic compound in fracturing liquid is all difficult to pre-treatment and the MBR treatment stage remove, and in fracturing liquid, also has the organic molecule of other hard degradation, if carrying out thorough processing, just directly do not discharge in the water that these are contained to complex compound, these toxic compounds will cause serious destruction to ecotope, so must carry out degree of depth nuisanceless disposal.
The 3rd step: ozone oxidation reaction
The index of remaining hazardous compound after processing according to MBR, determines the add-on of ozone in each single tower, before commencement of commercial operation and try out, to obtain immediate data accurately.
By sewage after treatment, by metering input ozone mixing column, ozone also, by metering input ozone mixing column, makes compound and ozone in sewage carry out oxidizing reaction.It is many that the ozone amount that first single tower adds is wanted, after the add-on of several towers by the analytical results of previous tower water outlet residue, successively decrease successively.
The sewage disposal device of ozone reaction tower is comprised of 2 above towers continuously, and each adjacent tower connects with pipeline, is provided with tower tray or filler (14) in tower, has ozone vapor pipe or micropore exhaust dish (10) at the bottom of tower.Ozone vapor pipe or the micropore exhaust dish of each tower bottom are connected with one or more ozonizers.Mud blanking discharge outlet (11) is arranged at tower bottom, through collecting tubule (12), is discharged into sludge treatment pond (13).Output water after MBR Membrane Bioreactor for Wastewater Treatment, by water-in (1), be transported to continuous ozone mixing column, and be connected with the entrance of tower (1) below through water outlet (3), adopt the form of series connection to enter into successively follow-up tower, through the water outlet (3) of a final tower, be transported to clean water basin (6).Ozone enters the ozone entrance (8) of each ozone tower bottom by the main distribution pipe of ozone (7), by ozone under meter (9), through ozone vapor pipe or micropore exhaust dish (10), by tower tray or filler (14), carry out oxidizing reaction with the sewage in each tower.By a plurality of ozone reaction towers, carry out continuous oxidation processing like this, can reach the remaining organic object of abundant decomposition.Sewage and ozone are in each ozone mixing column after oxidizing reaction, and a small amount of residual ozone is discharged into exhaust gas treating device (5) from the top exit (2) of tower through manifold trunk (4), focuses on rear discharge.Sewage, after ozone continuous reaction tower carries out oxidizing reaction, is understood accumulated sludge at the bottom of tower, and these mud pass through discharge outlet (11), then are discharged into sludge treatment pond (13) to collecting tubule (12).Because the compound in shale gas and industrial sewage is very complicated, thoroughly destroy the molecular chain of organic compound, may need the oxide treatment through 3～6 road ozone towers, and city domestic sewage generally only needs the continuous processing of 2～3 road ozone towers.The clear water of processing through such scheme can directly discharge completely, also can be used as the pre-treating technology of clean water.
Technical solution of the present invention is very convenient, easy to implement, compare with other sewage disposal scheme with muriate sterilization, and be complete oxidation processing scheme, non-secondary pollution source, floor space is little, low equipment investment.
Above technical scheme is not only applicable to the sewage treatment area of shale gas, also be applicable to pollute focusing on of comparatively serious coal chemical industry sewage, petrochemical industry sewage, metallurgical industry sewage and city domestic sewage, and be particularly suitable for the sewage disposal of large hospital and pharmaceutical industry.This technology can also provide the auxiliary facility of purifying waste water as industry and municipal effluent transformation.
Claims (3)
1. the sewage disposal device of a continuous ozone reaction tower, it is characterized in that through pretreated sewage, or the output water after MBR Membrane Bioreactor for Wastewater Treatment, adopt plural combination ozone reaction tower, by water-in (1), be transported to continuous ozone mixing column, and be connected with the entrance of tower (1) below through water outlet (3), adopt the form of series connection to enter into successively follow-up tower, water outlet (3) through a final tower is transported to clean water basin (6), ozone enters the ozone entrance (8) of each ozone tower bottom by the main distribution pipe of ozone (7), through ozone vapor pipe or micropore exhaust dish (10), carry out oxidizing reaction with the sewage in each tower.
2. according to the sewage disposal device of the continuous ozone reaction tower described in claims 1, it is characterized in that sewage and ozone are in each ozone mixing column after oxidizing reaction, a small amount of residual ozone is from the discharge after manifold trunk (4) is discharged into exhaust gas treating device (5) and focuses on of the top exit (2) of tower.
3. according to the sewage disposal device of the continuous ozone reaction tower described in claims 1, it is characterized in that answer >=1500mm of the sewage inlet (1) of all mixing columns and the difference of altitude of ozone vapor pipe or micropore exhaust dish (10), the middle part of ozone reaction tower is provided with tower tray or filler, to guarantee that ozone can play the effect of fully reacting with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223533.1U CN203890194U (en) | 2014-04-29 | 2014-04-29 | Sewage treatment equipment for continuous ozone reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223533.1U CN203890194U (en) | 2014-04-29 | 2014-04-29 | Sewage treatment equipment for continuous ozone reaction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890194U true CN203890194U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223533.1U Expired - Fee Related CN203890194U (en) | 2014-04-29 | 2014-04-29 | Sewage treatment equipment for continuous ozone reaction tower |
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| CN (1) | CN203890194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936235A (en) * | 2014-04-29 | 2014-07-23 | 武汉市润之达石化设备有限公司 | Sewage treatment equipment of continuous ozone reaction tower |
-
2014
- 2014-04-29 CN CN201420223533.1U patent/CN203890194U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936235A (en) * | 2014-04-29 | 2014-07-23 | 武汉市润之达石化设备有限公司 | Sewage treatment equipment of continuous ozone reaction tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuhan Runzhida Petrochemical Equipment Co., Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20180429 |