CN201458878U - Devices for the removal of phthalates in drinking water - Google Patents
Devices for the removal of phthalates in drinking water Download PDFInfo
- Publication number
- CN201458878U CN201458878U CN2009201285559U CN200920128555U CN201458878U CN 201458878 U CN201458878 U CN 201458878U CN 2009201285559 U CN2009201285559 U CN 2009201285559U CN 200920128555 U CN200920128555 U CN 200920128555U CN 201458878 U CN201458878 U CN 201458878U
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- Prior art keywords
- water
- reactor
- filler
- contact tower
- ozone contact
- 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.)
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- 235000020188 drinking water Nutrition 0.000 title claims abstract description 22
- 239000003651 drinking water Substances 0.000 title claims abstract description 22
- 125000005498 phthalate group Chemical class 0.000 title claims abstract 7
- 239000000945 filler Substances 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000010457 zeolite Substances 0.000 claims abstract description 33
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 31
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract 13
- 238000009826 distribution Methods 0.000 claims description 13
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 14
- 239000008399 tap water Substances 0.000 description 14
- 235000020679 tap water Nutrition 0.000 description 14
- 150000002148 esters Chemical class 0.000 description 12
- 238000011010 flushing procedure Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000011001 backwashing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 239000004803 Di-2ethylhexylphthalate Substances 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- -1 medical product Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940011871 estrogen Drugs 0.000 description 1
- 239000000262 estrogen Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
本实用新型涉及一种去除饮用水中邻苯二甲酸酯的装置，它包括臭氧接触塔、臭氧发生器和混合填料反应器，臭氧发生器与臭氧接触塔的气体入口连接；混合填料反应器的上端和下端分别设有进水口和出水口，混合填料反应器内位于进水口和出水口之间从上往下设有沸石填料和活性炭填料，臭氧接触塔上的接触后水出口通过管道与混合填料反应器上的进水口连接。本实用新型采用活性炭、沸石两种填料，不仅可以充分发挥两种吸附材料各自的优势，而且能够有效降低单独采用活性炭填料的成本，特别适合PAEs中低进水浓度的常见饮用水水源，实用性更强，适合于饮用水厂深度处理改造。
The utility model relates to a device for removing phthalates in drinking water, which comprises an ozone contact tower, an ozone generator and a mixed packing reactor, the ozone generator is connected with the gas inlet of the ozone contact tower; the mixed packing reactor The upper and lower ends of the reactor are respectively provided with a water inlet and a water outlet. The mixed packing reactor is located between the water inlet and the water outlet and is provided with zeolite packing and activated carbon packing from top to bottom. Water inlet connection on the mixed-pack reactor. The utility model adopts activated carbon and zeolite fillers, which can not only give full play to the respective advantages of the two kinds of adsorption materials, but also effectively reduce the cost of using activated carbon fillers alone, and is especially suitable for common drinking water sources with low influent concentrations in PAEs. Stronger, suitable for advanced treatment transformation of drinking water plants.
Description
Technical field
The utility model relates to the drinking water treatment technology, specifically refers to utilize ozone-active carbon/combination of zeolites filler technology to remove the device of phthalic ester in the tap water, belongs to the environment protection water treatment field.
Background technology
Phthalic ester has another name called phthalate (PAEs), is the chemical industrial product that a class is generally used, and has estrogen effect, thereby can disturb the normal internal secretion of human body to influence reproduction, thereby also belongs to environmental hormone.PAEs mainly as softening agent, also is applied in the production process of coating, paint, medical product, vehicle glass, makeup, agrochemical product.High speed development along with China's polyvinyl chloride and plastics industry, China's plastics output has occupied the second in the world, a large amount of PAEs all detect in various surrounding mediums such as water, atmosphere, soil and organism because use enters environment, and a lot of local drinking water source ground also are subjected to the pollution of PAEs.Drinking water plant just comprises processing to PAEs to the processing of tap water.But present drinking water plant mainly adopts conventional treatment process, that is: coagulation+precipitation+filtration+technologies such as sterilization, these conventional treatment processes do not carry out at PAEs specially, so it is not high to the PAEs removal effect, have during PAEs concentration in water factory's effluent quality above Ministry of Health's " drinking water sanitary standard " (GB5749-2006) situation take place, the people's drinking water safety in serious threat.
At present also less at the treatment process of PAEs in the tap water, mainly be ozone decomposition+active carbon absorption technology and little aerated biological activated carbon filter tank technique, two kinds of technologies are better to PAEs control effect in the tap water, and clearance is all more than 90%.Gac is main absorbing unit in above-mentioned two kinds of technologies, because the aperture characteristics of gac make it to all contaminations certain adsorption effect be arranged all, gac can not be given full play to the characteristic of absorption PAEs, surface-area will can not get sufficient utilization, certainly will quicken saturated, the shortening cycle.In addition, though these technologies have excellent control effect to PAEs, the price comparison costliness of gac is main the applying of unitary technology of removing with seriously restricting with the gac; Once more, the above-mentioned two kinds of technology PAEs influent concentrations in the report require all to be not less than 200 μ g/L, far above the concentration of PAEs in the domestic common drinking water source; Perhaps the PAEs influent concentration is lower, does not reach " drinking water sanitary standard " limit value requirement (GB5749-2006) but go out water concentration.
The utility model content
At the prior art above shortcomings, the purpose of this utility model is to propose a kind ofly to reduce processing cost, improve the phthalic ester removal effect and prolong the device of phthalic ester in the removal tap water of equipment life cycle, and this device is particularly suitable for the processing of the lower common drinking water source of phthalic ester influent concentration.
The purpose of this utility model is achieved in that the device of removing phthalic ester in the tap water, it is characterized in that: it comprises ozone contact tower, ozonizer and mixed fillers reactor, be provided with the gas inlet in ozone contact tower bottom, be provided with pneumatic outlet at ozone contact tower top, tap water after ozone contact tower bottom and top are respectively equipped with processing such as passing through conventional coagulating sedimentation enters the mouth and contacts the back water out, and the outlet of ozonizer is connected by the gas inlet of pipeline with the ozone contact tower; The top and bottom of mixed fillers reactor are respectively equipped with water-in and water outlet, is provided with zeolite filler and active carbon filler from top to bottom in the mixed fillers reactor between water-in and water outlet, water out is connected with water-in on the mixed fillers reactor by pipeline after the contact on the ozone contact tower.
Further, zeolite filler and active carbon filler total height are 0.8-1.5m in the mixed fillers reactor, and the aspect ratio of zeolite filler and active carbon filler is 1: 0.4-2.
Horizontal distribution has some air distribution plates that are used for the tape punching of even gas distribution in the described ozone contact tower, and air distribution plate is positioned at ozone contact tower different heights and even at interval.
This device also comprises the back flushing water tank, and described back flushing water tank is connected with mixed fillers reactor water outlet with to zeolite filler and active carbon filler back flushing by backwash pump, is provided with the backwashing water outlet on mixed fillers reactor top.
Be provided with the supporting layer of carrying zeolite filler and active carbon filler below active carbon filler, described supporting layer is made of gravel or cobble, support floor height 0.2m.
Compare with prior art, the utlity model has following useful effect:
(1) the utility model has adopted gac, two kinds of fillers of zeolite, not only can give full play to two kinds of sorbing materials advantage separately, and can effectively reduce the cost of independent employing active carbon filler, more helps applying of this technology.
(2) zeolite filler to reduce the adsorptive pressure of gac, makes gac can give full play to the characteristic of absorption PAEs, the cycle stretch-out that gac is reached capacity earlier with larger molecular organics absorption.
(3) the utility model is particularly suitable for low influent concentration among the PAEs, and common drinking water source is middle lower concentration PAEs, so the utility model practicality is stronger, is suitable for the transformation of drinking water plant advanced treatment.
Description of drawings
Fig. 1 is that the utility model is removed phthalic ester structure drawing of device in the tap water.
Fig. 2 is mixed fillers reactor A-A sectional view among Fig. 1.
Among the figure, 1-ozone contact tower; The 2-ozonizer; 3-mixed fillers reactor; The 4-air distribution plate; The 5-zeolite filler; The 6-active carbon filler; The 7-supporting layer; 8-back flushing water tank; The 9-backwash pump.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, as can be seen, the utility model is removed the device of phthalic ester in the tap water from the figure, and it comprises ozone contact tower 1, ozonizer 2 and mixed fillers reactor 3.
Horizontal distribution has some (showing three on the figure) to be used for the air distribution plate 4 of the tape punching of even gas distribution in ozone contact tower 1, and air distribution plate 4 is positioned at ozone contact tower 1 different heights and even at interval.Be provided with the gas inlet in ozone contact tower bottom, be provided with pneumatic outlet at ozone contact tower top, the outlet of ozonizer 2 is connected by the gas inlet of pipeline with ozone contact tower 1.While is respectively equipped with through the inlet of the tap water after the processing such as conventional coagulating sedimentation and contacts the back water out on ozone contact tower bottom and top.
The top and bottom of mixed fillers reactor 3 are respectively equipped with water-in and water outlet, are provided with zeolite filler 5 and active carbon filler 6 in the mixed fillers reactor between water-in and water outlet from top to bottom.Be provided with the supporting layer 7 of carrying zeolite filler and active carbon filler below active carbon filler 6, described supporting layer 7 is made of gravel or cobble, support floor height 0.2m.Water out is connected with water-in on the mixed fillers reactor 3 by pipeline after the contact on the ozone contact tower 1.
The utility model zeolite filler 5 and active carbon filler 6 total heights are 0.8-1.5m, and the aspect ratio of zeolite filler 5 and active carbon filler 6 is 1: 0.4-2.Certainly, make under the treating water prerequisite up to standard, in order to reduce installation cost, the filler total height is low more good more; And under the certain situation of filler total height, the active carbon filler ratio is low more, and cost is just low more.
(making an appointment with February) may have the absorption saturation problem after mixed fillers reactor 3 moved for some time, make the water outlet deteriorating water quality, therefore this device also has additional back flushing water tank 8, described back flushing water tank 8 is connected with to zeolite filler and active carbon filler back flushing by backwash pump 9 and mixed fillers reactor 3 water outlets (becoming the backwashing water import this moment), to remove the material that adsorbs on the filler. backwash pump 9 pumps into mixed fillers reactor 3 bottoms with the cleaning water in the back flushing water tank 8, treating water flowed to opposite when backwashing water flowed to normal operation, enter by mixed fillers reactor bottom supporting layer 7, oppositely pass through filler, be provided with the backwashing water outlet on mixed fillers reactor top, backwashing water is discharged as waste water.
Principle of work of this device and process:
Pending tap water at first enters from ozone contact tower bottom, ozone gas feeds from the bottom of ozone contact tower, the air distribution plate of ozone gas in tower mixes with the water concurrent, hard-degraded substances such as PAEs in the blended process in the water are decomposed by ozone oxidation, two keys, phenyl ring fracture, phthalic ester is degraded to phthalic acid, small organic molecule compounds such as (aldehyde, ketone, acid) more.Water after the preliminary treatment flows into the mixed fillers reactor, is introduced into the zeolite filler layer, and with respect to DMP, the DBP of small molecular weight, zeolite filler has more the absorption advantage to macromolecular DEHP, DOP, more adsorbed by zeolite filler of DEHP and DOP; Treating water enters active carbon filler more afterwards, and with the strong advantage of its absorption small molecules ability of performance, preferentially adsorbed DMP, DBP and other are by the small organic molecule of ozone oxidation.
In above-mentioned ozone-active carbon/combination of zeolites filler technology, the blend proportion that ozone dosage, ozone contact time, the empty bench grafting of filler touch time, gac and zeolite can change, and promptly adjusts according to the influent quality situation.
The utility model has formed the characteristics of multistage technology coupling, be equivalent to the series connection of ozone-active carbon and two kinds of technologies of ozone-zeolite, given full play to oxidation capacity, gac and the zeolite absorption advantage separately of ozone, can be low-cost and remove phthalic ester in the tap water effectively.
Embodiment 1:
Enter through the bottom of the water inlet of the tap water after the processing such as conventional coagulating sedimentation from ozone contact tower 1, ozone gas produces the bottom feeding of back from ozone contact tower 1 by ozonizer 2, air distribution plate 4 effects and water uniform mixing of ozone in contact tower 1; Water and the ozone contact tower 1 of upwards flowing through, total residence time is 15min; Water after contact is handled flows out from ozone contact tower 1 top, then flows into mixed fillers reactor 3 from top, successively through wherein zeolite filler 5, active carbon filler 6 and supporting layer 7.The total height of gac and zeolite filler is 0.8m.Flow out from the bottom water outlet by supporting layer 7 backs by the water outlet after the filling adsorption, become the complete assembly water outlet.After reactor operation for some time (February approximately) may have the absorption saturation problem, effluent quality descends, and therefore inhales cleaning water flushing mixed fillers reactors 3 by backwash pump 9.The treating water flow direction was opposite when backwashing water flowed to normal operation, was entered by mixed fillers reactor 3 bottom supporting layers 7, and oppositely by gac 6 and zeolite filler 5, flushing back water exports to discharge by mixed fillers reactor top backwashing water as waste water and gets final product.
Ozone contact tower height H in the present embodiment
1=2m, ozone contact tower diameter D
1=0.1m; Mixed fillers packed column reactor height H
2=2m, mixed fillers reactor diameter D
2=0.1m.
It is 0.6m that day is handled flow
3During/d, pending water is about 15min at the mean residence time of ozone contact tower, and the empty bench grafting time of touching in the mixed fillers reactor is 16min.
Filler adopts zeolite and two kinds of fillers of gac, and zeolite is positioned at the gac top, and the ratio of gac is (weight) 0%～100% in the mixed fillers.The basic index of two kinds of fillers sees the following form.
Filtrate index table
When gac ratio in the mixed fillers 〉=30%, under above-mentioned operational conditions, (2-ethylhexyl) ester of phthalic acid two in the water outlet after the processing (DEHP) concentration is all stable to be lower than " drinking water sanitary standard " (GB5749-2006) standard of 8 μ g/L.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201285559U CN201458878U (en) | 2009-08-21 | 2009-08-21 | Devices for the removal of phthalates in drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201285559U CN201458878U (en) | 2009-08-21 | 2009-08-21 | Devices for the removal of phthalates in drinking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201458878U true CN201458878U (en) | 2010-05-12 |
Family
ID=42386231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201285559U Expired - Fee Related CN201458878U (en) | 2009-08-21 | 2009-08-21 | Devices for the removal of phthalates in drinking water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201458878U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249476A (en) * | 2011-05-01 | 2011-11-23 | 南京大学 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
| CN102561243A (en) * | 2012-02-06 | 2012-07-11 | 西安费斯达自动化工程有限公司 | Method for using ozone to treat methyl stearate in pavement oil leakage |
| CN103588744A (en) * | 2013-10-31 | 2014-02-19 | 宁波大红鹰生物工程股份有限公司 | Method for removing plasticizer from natural vitamin E |
| CN104961226A (en) * | 2015-06-29 | 2015-10-07 | 浙江大学 | Composite biological filter for treating high algae-laden and high ammonia-nitrogen raw water and application method thereof |
| CN105481042A (en) * | 2015-12-29 | 2016-04-13 | 太仓弘杉环保科技有限公司 | Activated carbon adsorption technique and adsorption plant |
-
2009
- 2009-08-21 CN CN2009201285559U patent/CN201458878U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249476A (en) * | 2011-05-01 | 2011-11-23 | 南京大学 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
| CN102249476B (en) * | 2011-05-01 | 2012-10-31 | 南京大学 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
| CN102561243A (en) * | 2012-02-06 | 2012-07-11 | 西安费斯达自动化工程有限公司 | Method for using ozone to treat methyl stearate in pavement oil leakage |
| CN103588744A (en) * | 2013-10-31 | 2014-02-19 | 宁波大红鹰生物工程股份有限公司 | Method for removing plasticizer from natural vitamin E |
| CN103588744B (en) * | 2013-10-31 | 2016-01-13 | 宁波大红鹰生物工程股份有限公司 | Remove the method for fluidizer in natural VE |
| CN104961226A (en) * | 2015-06-29 | 2015-10-07 | 浙江大学 | Composite biological filter for treating high algae-laden and high ammonia-nitrogen raw water and application method thereof |
| CN104961226B (en) * | 2015-06-29 | 2017-10-31 | 浙江大学 | A kind of complex biological filter and its application process for handling high algae high NH4 source water |
| CN105481042A (en) * | 2015-12-29 | 2016-04-13 | 太仓弘杉环保科技有限公司 | Activated carbon adsorption technique and adsorption plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140821 |
|
| EXPY | Termination of patent right or utility model |