CN102249476A - Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process - Google Patents
Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process Download PDFInfo
- Publication number
- CN102249476A CN102249476A CN201110112196.XA CN201110112196A CN102249476A CN 102249476 A CN102249476 A CN 102249476A CN 201110112196 A CN201110112196 A CN 201110112196A CN 102249476 A CN102249476 A CN 102249476A
- Authority
- CN
- China
- Prior art keywords
- ozone
- water
- chlorella
- treatment
- phthalic ester
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 55
- 241000195649 Chlorella <Chlorellales> Species 0.000 title claims abstract description 31
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 25
- 230000015556 catabolic process Effects 0.000 title claims abstract description 24
- 125000005498 phthalate group Chemical class 0.000 title abstract description 5
- 239000002131 composite material Substances 0.000 title abstract description 3
- 241000195493 Cryptophyta Species 0.000 claims abstract description 28
- 238000002203 pretreatment Methods 0.000 claims abstract description 16
- 150000002148 esters Chemical class 0.000 claims description 29
- 230000010354 integration Effects 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 12
- 239000003621 irrigation water Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims 1
- -1 phthalic acid esters Chemical class 0.000 abstract description 10
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 abstract description 7
- 238000006065 biodegradation reaction Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 2
- 206010067484 Adverse reaction Diseases 0.000 abstract 1
- 230000006838 adverse reaction Effects 0.000 abstract 1
- 238000009395 breeding Methods 0.000 abstract 1
- 230000001488 breeding effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000002503 metabolic effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 38
- 238000012545 processing Methods 0.000 description 20
- 239000013067 intermediate product Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 230000000593 degrading effect Effects 0.000 description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 240000009108 Chlorella vulgaris Species 0.000 description 2
- 235000007089 Chlorella vulgaris Nutrition 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- 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 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 206010060766 Heteroplasia Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- 229930003779 Vitamin B12 Natural products 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- AGVAZMGAQJOSFJ-WZHZPDAFSA-M cobalt(2+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(1r,2r,3r,4z,7s,9z,12s,13s,14z,17s,18s,19r)-2,13,18-tris(2-amino-2-oxoethyl)-7,12,17-tris(3-amino-3-oxopropyl)-3,5,8,8,13,15,18,19-octamethyl-2 Chemical compound [Co+2].N#[C-].[N-]([C@@H]1[C@H](CC(N)=O)[C@@]2(C)CCC(=O)NC[C@@H](C)OP(O)(=O)O[C@H]3[C@H]([C@H](O[C@@H]3CO)N3C4=CC(C)=C(C)C=C4N=C3)O)\C2=C(C)/C([C@H](C\2(C)C)CCC(N)=O)=N/C/2=C\C([C@H]([C@@]/2(CC(N)=O)C)CCC(N)=O)=N\C\2=C(C)/C2=N[C@]1(C)[C@@](C)(CC(N)=O)[C@@H]2CCC(N)=O AGVAZMGAQJOSFJ-WZHZPDAFSA-M 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 1
- 229960001826 dimethylphthalate Drugs 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000598 endocrine disruptor Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000012250 organic toxicant Substances 0.000 description 1
- 231100001119 organic toxicant Toxicity 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 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
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000001228 trophic effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019163 vitamin B12 Nutrition 0.000 description 1
- 239000011715 vitamin B12 Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
Images
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a method for removing phthalate esters in water utilizing an UV (ultraviolet)/ozone/chlorella degradation composite process. The method comprises the following steps of: 1) firstly sampling polluted water containing phthalates, and carrying out UV/ozone combined process pre-test to determine the UV/ozone combined process parameters: UV intensity, ozone introduction amount and the treatment time T when the removal rate of the phthalates in water reaches 90%; 2) pre-treating the polluted water containing phthalates for 0.3-0.4 T by using the UV/ozone combined process under the conditions of the UV intensity and ozone introduction amount; and 3) then injecting the pre-treated water into a chlorella breeding tank and carrying out biodegradation treatment under the action of chlorella. In the method disclosed by the invention, the algae can adapt to the adverse reactions of PAEs (phthalic acid esters) in advance by the UV/ozone pre-treatment, and the metabolic burden in the initial stage of biodegradation treatment is reduced, thereby saving energy, shortening the treatment time and lowering the construction cost. The method is suitable for large-area water source pollution.
Description
Technical field
The invention belongs to water treatment field, be specifically related to the removal method that a kind of softening agent sewage promptly contains phthalic ester sewage.
Background technology
Studies confirm that in a large number human dysgenesia, heteroplasia, some cancer and immunity system, nervous system disorders are relevant with environment incretion interferent.Phthalic ester (Phthalic acid esters, or Phthalates are called for short PAEs, claim phthalate again) is one of most important endocrine disrupter in the water surrounding.Industrial, mainly as the softening agent and the tenderizer of plastics, the addition in the PVC polyethylene plastic products reaches 20%～50% to the PAEs compound.Because PAEs is not aggregated in the matrix of plastics, thereby in production, use and treating processes, PAEs is released in the environment, and atmosphere, water body, soil, farm crop and organism etc. are polluted.
In August, 1998, U.S. EPA has announced that 67 kinds (classes) filtering out jeopardize human body and biological environment incretion interferent from 86000 kinds of commercial chemical, and PAEs is formally listed in wherein.Also comprise 3 kinds of phthalate compounds (dimethyl phthalate (DMP), n-butyl phthalate (DBP) and dioctyl phthalate (DOP) (DEP) in China's environment priority pollutant Black List.
PAEs is easy to biomagnification, readily biodegradable not, and methods such as traditional flocculation, chlorination all are difficult for removing this compounds, and the lower and long processing period of biological treatment efficient.In recent years, people have been developed the various coupling techniques of chemical/physical efficiently, as gac and combination process thereof, TiO
Z/ UV co-oxidation technology, Cement Composite Treated by Plasma, microwave irradiation technology, high-energy radiation technology etc.UV/ozone oxidation technology is exactly wherein a kind of.It has conveniently fast, does not need to add new advantages such as chemical substance (ozonizer can be connected with oxygenerator, directly obtains oxygen from atmosphere), and current consumption is big, the not high shortcoming of mineralization degree but exist.The Study on degradation of DMP is shown that ozone molecule mainly is to come DMP's in the oxidizing water in the mode of direct attack according to us.Its oxidising process is similar to biological degradation, at first oxide side chain is generated phthalic acid, and then the open loop of further degrading, and finally generates water and CO
2Compare with simple ozone oxidation, UV/ozone coupling technology has improved clearance about 10%.The UV/ozone degradation process is first quick and back slow, and intermediate product reaches the climax in about 1/3 time, and intermediate product continues mineralising in remaining 2/3 time, reduces gradually.
As first trophic level of aquatic ecosystem, algae particularly in eutrophication water, because nutritive salt and organic matter increase greatly, makes a large amount of numerous lifes of algae for balance of ecosystem and stable playing an important role.There are some researches show that algae has certain enrichment and Degradation to the organic pollutant of water body.Even Chlorella vulgaris is a class wherein.According to the study, Chlorella vulgaris is insensitive to the toxic action of DMP, its EC
50Be 330mg.L
-1More than, and when lower concentration (10.0mg.L
-1) DMP is had significant Degradation, the 72h degradation rate reaches more than 60%.Chlorella has one section adaptation time and DeR process in the starting stage of contact DMP.On degradation speed, experience slow, a fast process.But in general, adopt chlorella degraded DMP consuming time longer merely.
Summary of the invention
The objective of the invention is on the basis of existing technology, provide a kind of UV/ozone/chlorella degraded recombining process to remove the method for phthalic ester in the water.This law proceeds to 0.3～0.4 times of treatment time in UV/ozone technology, the water that is rich in the degraded intermediate product is injected the bead algae culture pond carry out follow-up biological degradation the peak times that the intermediate product of promptly degrading occurs, and is translated into frond, mineralising is water and CO
2This law is compared with simple UV/ozone technology or biological degradation, and energy consumption lowers greatly, the shortening of processing cycle, the also corresponding increase of treatment capacity.
Purpose of the present invention can reach by following measure:
A kind of UV/ozone/chlorella degraded recombining process is removed the method for phthalic ester in the water, and it comprises the steps:
1) elder generation takes a sample from the polluted water that contains phthalic ester and carries out the trial test of UV/ozone process integration, and determine UV/ozone process integration parameter: the clearance of phthalic ester reaches 90% o'clock treatment time T in uitraviolet intensity, ozone feeding amount and the water;
2) under the condition of above-mentioned uitraviolet intensity and ozone feeding amount, adopt the UV/ozone process integration that the described polluted water that contains phthalic ester is carried out pre-treatment, the treatment time is 0.3～0.4T;
3) during the water after the pre-treatment reinjected the bead algae culture pond, biodegrade was handled under the effect of chlorella.
The present invention comprises that (step 1) and pre-treatment and biological treatment (step 2 and 3), trial test can be determined treatment condition, thereby provides reference for extensive formal the processing to the sample trial test.When UV/ozone process integration of the present invention is meant that treating treating water carries out the uv irradiating processing, also it is carried out ozonation aerated processing.
The concentration that this law is handled to contain phthalic ester in the polluted water of phthalic ester is 1～10mg.L
-1If contain when containing more solid matter or organism in the polluted water of phthalic ester, the polluted water that contains phthalic ester can be precipitated and filters (as water being injected the water reservoir precipitation, filtering) earlier, carry out trial test and pre-treatment again.
Uitraviolet intensity in trial test is 135～270 μ W.cm
-2, ozone feeding amount is 2.0～10.0mg.h
-1.L
-1Water sample is carried out trial test, be not only in order to obtain UV/ozone process integration condition, especially in order to determine the time of 90% clearance, and then obtain the UV/ozone process integration and reach the peak times that the degraded intermediate product occurs (promptly 0.3～0.4T), utilization has a large amount of these phenomenons of degraded intermediate product in this peak times, for follow-up chlorella biodegradation process provides favourable condition.
UV/ozone process integration to 0.3～0.4 times T is after the treatment time, after the peak times that the intermediate product of promptly degrading occurs, the water that is rich in the degraded intermediate product injected the bead algae culture pond carry out follow-up biological degradation, is translated into frond, mineralising is water and CO
2
So step 2) it is stopped reaction that UV/ozone technology is only carried out 0.3～0.4T, goes to follow-up biological degradation treatment.In the bead algae culture pond of step 3), the cultivation density of chlorella is 10
7～10
9Individual ml
-1The concentration that the phthalic ester to the water is handled in biological degradation is lower than 0.008mg.L
-1After, water is discharged.
Beneficial effect of the present invention:
1, the front and back logistics of UV/ozone and chlorella degraded two-stage process is complementary.Our evidence, the intermediate product that DMP, DBP handle with the algae degraded through UV/ozone is all MMP, MBP, PA, and the algae toxicity of these intermediate products is lower than former material DMP, DBP.Therefore, the UV/ozone pre-treatment helps algae and adapts to untoward reaction to PAEs in advance, alleviates the metabolism burden of biological degradation starting stage.
2, the UV/ozone pre-treating technology organic toxicant of not only degrading also has sterilizing function.This technology with the microorganism killing in the water body after, can prevent that the algae pond from polluting, help chlorella and grow faster and betterly.
3, make high protein feed simultaneously at the processing organic pollutant.In general, every 100m
2Culture the pond, can produce chlorella algae 120kg per year.In numerous phycophyta, the nutritive value of chlorella is the highest.According to surveying and determination, the protein content of chlorella is about 50～55%, and lipid content is 10～30 ‰, and carbohydrate content is 10～25%, is equivalent to 5 times of egg, 2 times of Semen arachidis hypogaeae.Chlorella also contains abundant various VITAMIN, as vitamin A, VITMAIN B1, Wei ShengsuB2 etc., all than the content height of general vegetables.Ascorbic content is 2 times of citrus in the chlorella, and more valuable is that it also contains the vitamin B12 that is lacked in the general food.
4, save energy.Only use preceding 0.3～0.4 times of treatment time of UV/ozone technology (T), aftertreatment changes the biological degradation technology of utilizing luminous energy into.Compare with UV/ozone technology, entire treatment process save energy is about more than 30%.
5, shorten the treatment time.Pretreatment stage-UV/ozone technology is converted into biodegradable substrate with PAEs, thereby has reduced post-processing stages-biodegradable lifting capacity.Compare with biological degradation technology, the complete period shortens more than the 20h.
6, reduce laid down cost.Culture the water inlet sterilization pool in pond and culture after the pond transforms a little existing, can realize method of the present invention.
7, be applicable to large-area pollution of waterhead.Simple UV/ozone technology only is used for the batch production drinking water treatment.Pollute for water body in large,, be difficult to application because processing cost is too high.
8, the Toxic degraded thoroughly.Biodegradable final product is frond, water and CO
2
Description of drawings
Fig. 1 is UV/ozone of the present invention/chlorella degraded recombining process synoptic diagram.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment 1:
Earlier from containing 1mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 135 μ W.cm
-2, ozone feeding amount 2.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 30 minutes, so employing uitraviolet intensity 135 μ W.cm
-2, ozone feeding amount 2.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 10 minutes; Water after the pre-treatment 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 1.0 * 10
7～1.0 * 10
8Individual ml
-1Phthalic acid ester content is 0.0074mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 120kg per year, compares save energy 8kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 20h.
Embodiment 2:
Earlier from containing 2mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 135 μ W.cm
-2, ozone feeding amount 4.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 30 minutes, so employing uitraviolet intensity 135 μ W.cm
-2, ozone feeding amount 4.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 10 minutes; Water after the processing 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 1.5 * 10
7～1.6 * 10
8Individual ml
-1Phthalic acid ester content is 0.0079mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 130kg per year, compares save energy 16kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 20h.
Embodiment 3:
Earlier from containing 4mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 202.5 μ W.cm
-2, ozone feeding amount 6.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 30 minutes, so employing uitraviolet intensity 202.5 μ W.cm
-2, ozone feeding amount 6.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 10 minutes (9-12 minute, got 10 minutes); Water after the processing 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 1.6 * 10
7～1.8 * 10
8Individual ml
-1Phthalic acid ester content is 0.0075mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 130kg per year, compares save energy 30kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 21h.
Embodiment 4:
Earlier from containing 6mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 202.5 μ W.cm
-2, ozone feeding amount 8.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 45 minutes, so employing uitraviolet intensity 202.5 μ W.cm
-2, ozone feeding amount 8.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 15 minutes (13.5-18 minute, got 15 minutes); Water after the processing 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 2.0 * 10
7～2.0 * 10
8Individual ml
-1Phthalic acid ester content is 0.0076mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 135kg per year, compares save energy 70kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 21h.
Embodiment 5:
Earlier from containing 8mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 270 μ W.cm
-2, ozone feeding amount 10.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 45 minutes, so employing uitraviolet intensity 270 μ W.cm
-2, ozone feeding amount 10.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 15 minutes (13.5-18 minute, got 15 minutes); Water after the processing 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 1.0 * 10
8～4.0 * 10
8Individual ml
-1Phthalic acid ester content is 0.0078mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 140kg per year, compares save energy 118kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 22h.
Embodiment 6:
Earlier from containing 10mg.L
-1In the polluted water of phthalic ester the sampling and carry out the trial test of UV/ozone process integration, determine that processing parameter is: uitraviolet intensity 270 μ W.cm
-2, ozone feeding amount 10.0mg.h
-1.L
-1And clearance to reach treatment time of 90% be 60 minutes, so employing uitraviolet intensity 270 μ W.cm
-2, ozone feeding amount 10.0mg.h
-1.L
-1This water body is carried out pre-treatment, and the time is 20 minutes (18-24 minute, got 20 minutes); Water after the processing 100m that reinjects
2Carry out biology in the bead algae culture pond of area and degrade, the chlorella cultivation density is 4.0 * 10
8～1.0 * 10
9Individual ml
-1Phthalic acid ester content is 0.0075mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 142kg per year, compares save energy 158kW.h with simple employing UV/ozone technology, with simple employing biological degradation technology reduced in comparison time 22h.
Comparative Examples 1: independent UV/ozone process integration
Adopt the UV/ozone process integration to containing 10mg.L
-1The phthalic ester polluted water is handled, and processing parameter is: uitraviolet intensity 270 μ W.cm
-2, ozone feeding amount 10.0mg.h
-1.L
-1, the treatment time is 60 minutes, phthalic acid ester content is 1mg.L in the detection water
-1This technology power consumption 270kW.h.
Comparative Examples 2: independent chlorella degradation technique
Contain 10mg.L
-1The polluted water of phthalic ester is injected 100m
2Biodegrade in the bead algae culture pond of area, chlorella cultivation density are 4.0 * 10
8～1.0 * 10
9Individual ml
-1, behind the processing 72h, phthalic acid ester content is 1mg.L in the detection water
-1, be discharged in the farmland as irrigation water.This technology is produced algae 120kg, time spent 72h per year.
Claims (7)
1. UV/ozone/chlorella degraded recombining process is removed the method for phthalic ester in the water, be it is characterized in that comprising the steps:
1) elder generation takes a sample from the polluted water that contains phthalic ester and carries out the trial test of UV/ozone process integration, and determine UV/ozone process integration parameter: the clearance of phthalic ester reaches 90% o'clock treatment time T in uitraviolet intensity, ozone feeding amount and the water;
2) under the condition of above-mentioned uitraviolet intensity and ozone feeding amount, adopt the UV/ozone process integration that the described polluted water that contains phthalic ester is carried out pre-treatment, the treatment time is 0.3～0.4T;
3) during the water after the pre-treatment reinjected the bead algae culture pond, biodegrade was handled under the effect of chlorella.
2. method according to claim 1 is characterized in that: the concentration of phthalic ester is 1～10mg.L in the described polluted water that contains phthalic ester
-1
3. method according to claim 1 is characterized in that: the uitraviolet intensity in the described trial test is 135～270 μ W.cm
-2, ozone feeding amount is 2.0～10.0mg.h
-1.L
-1
4. method according to claim 1 is characterized in that: the cultivation density of chlorella is 10 in the step 3)
7～10
9Individual ml
-1
5. method according to claim 1 is characterized in that: the concentration that the phthalic ester to the water is handled in biological degradation described in the step 3) is lower than 0.008mg.L
-1After, water is discharged.
6. method according to claim 5 is characterized in that: water is discharged in the farmland as irrigation water.
7. method according to claim 1 is characterized in that: after the described polluted water that contains phthalic ester precipitates earlier and filters, carry out trial test and pre-treatment again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110112196XA CN102249476B (en) | 2011-05-01 | 2011-05-01 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110112196XA CN102249476B (en) | 2011-05-01 | 2011-05-01 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102249476A true CN102249476A (en) | 2011-11-23 |
| CN102249476B CN102249476B (en) | 2012-10-31 |
Family
ID=44977110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110112196XA Expired - Fee Related CN102249476B (en) | 2011-05-01 | 2011-05-01 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102249476B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553123A (en) * | 2012-02-06 | 2012-07-11 | 西安费斯达自动化工程有限公司 | Method for processing oleyl phosphate in leaked oil on pavement by ozone |
| CN109928586A (en) * | 2019-04-28 | 2019-06-25 | 重庆工商大学 | A kind of method of difficult for biological degradation organic pollutant in removal dyeing waste water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700923A (en) * | 2009-11-18 | 2010-05-05 | 重庆大学 | Method for removing environment hormone dimethyl phthalate in water body |
| CN201458878U (en) * | 2009-08-21 | 2010-05-12 | 重庆大学 | Device for removing phthalate esters in drinking water |
| CN101734818A (en) * | 2008-11-13 | 2010-06-16 | 南京理工大学 | Method and device for photo-oxidative degradation of typical organic micropollutants in raw water |
| CN101798136A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Method for removing organic pollutants from water |
-
2011
- 2011-05-01 CN CN201110112196XA patent/CN102249476B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734818A (en) * | 2008-11-13 | 2010-06-16 | 南京理工大学 | Method and device for photo-oxidative degradation of typical organic micropollutants in raw water |
| CN201458878U (en) * | 2009-08-21 | 2010-05-12 | 重庆大学 | Device for removing phthalate esters in drinking water |
| CN101700923A (en) * | 2009-11-18 | 2010-05-05 | 重庆大学 | Method for removing environment hormone dimethyl phthalate in water body |
| CN101798136A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Method for removing organic pollutants from water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553123A (en) * | 2012-02-06 | 2012-07-11 | 西安费斯达自动化工程有限公司 | Method for processing oleyl phosphate in leaked oil on pavement by ozone |
| CN109928586A (en) * | 2019-04-28 | 2019-06-25 | 重庆工商大学 | A kind of method of difficult for biological degradation organic pollutant in removal dyeing waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102249476B (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pacheco-Álvarez et al. | A critical review on paracetamol removal from different aqueous matrices by Fenton and Fenton-based processes, and their combined methods | |
| Igwegbe et al. | Treatment technologies for bakers’ yeast production wastewater | |
| CN103663871A (en) | Method used for processing and recycling of aquacultural waste water | |
| CN103910467A (en) | Method for processing aquatic product culture waste water | |
| Yang et al. | An integrated view of the intimate coupling UV irradiation and algal treatment on antibiotic: Compatibility, efficiency and microbic impact assessment | |
| CN102249365A (en) | Method for degrading sulfadiazine in water through gamma irradiation | |
| Moghiseh et al. | Metabolic activity and pathway study of aspirin biodegradation using a microbial electrochemical system supplied by an alternating current | |
| CN108002605B (en) | Method for treating antibiotics in mariculture wastewater | |
| Qian et al. | Capabilities and mechanisms of microalgae on nutrients and florfenicol removing from marine aquaculture wastewater | |
| Hu et al. | Integration of ozone with co-immobilized microalgae-activated sludge bacterial symbiosis for efficient on-site treatment of meat processing wastewater | |
| Liu et al. | Potential of UV/H2O2 oxidation for enhancing the biodegradability of municipal reverse osmosis concentrates | |
| CN111233224A (en) | Treatment method for simultaneously removing nitrogen, phosphorus and antibiotics in mariculture wastewater and sterilizing | |
| Zhu et al. | Integrated strategies for robust growth of Chlorella vulgaris on undiluted dairy farm liquid digestate and pollutant removal | |
| CN102249476B (en) | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process | |
| Huang et al. | Removal of antibiotic resistance genes during livestock wastewater treatment processes: Review and prospects | |
| CN204981478U (en) | Leachate treatment system | |
| CN108164086B (en) | Breeding wastewater recycling system and application thereof in recycling breeding wastewater | |
| CN105481127B (en) | A kind of system for being electrolysed ultraviolet joint processing cultivation recirculated water | |
| Luo et al. | Enhanced removal of humic acid from piggery digestate by combined microalgae and electric field | |
| CN103482718A (en) | Method for degrading dienestrol in water body through electron beam irradiation | |
| CN111056701A (en) | Wastewater composite disinfection process for harmless treatment of livestock and poultry died of diseases | |
| CN110734199A (en) | garlic processing wastewater treatment process | |
| CN204958664U (en) | Processing system of medicine waste water | |
| CN202785902U (en) | Organic wastewater processing and recovering system | |
| CN113060879A (en) | Method for removing fluoroquinolone antibiotics in water based on ultraviolet/chlorine dioxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140501 |