CN1270984C - Process for treating waste water of producing refined terephthalic acid - Google Patents
Process for treating waste water of producing refined terephthalic acid Download PDFInfo
- Publication number
- CN1270984C CN1270984C CNB2004100911311A CN200410091131A CN1270984C CN 1270984 C CN1270984 C CN 1270984C CN B2004100911311 A CNB2004100911311 A CN B2004100911311A CN 200410091131 A CN200410091131 A CN 200410091131A CN 1270984 C CN1270984 C CN 1270984C
- Authority
- CN
- China
- Prior art keywords
- aerobic
- activated sludge
- anaerobic
- waste water
- handling
- 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.)
- Expired - Fee Related
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title description 29
- 239000010802 sludge Substances 0.000 claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000004065 wastewater treatment Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000002906 microbiologic effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 102000008186 Collagen Human genes 0.000 claims description 2
- 108010035532 Collagen Proteins 0.000 claims description 2
- 229920002307 Dextran Polymers 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920001436 collagen Polymers 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims description 2
- 230000000050 nutritive effect Effects 0.000 claims description 2
- 150000004965 peroxy acids Chemical class 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 244000005700 microbiome Species 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000035764 nutrition Effects 0.000 description 4
- 235000016709 nutrition Nutrition 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention discloses a method for treating waste water generated in production of refined terephthalic acid, which belongs to the technical field of environmental engineering and technology for treating industrial waste water. The method comprises that a porous flexible cone carrier which has compatibility and biological stability is thrown in an aerobic activated sludge organism reactor of an aeration device to form an anaerobic and aerobic coupling microorganism system, in which anaerobic activated sludge and aerobic activated sludge are activated sludge, and the anaerobic and aerobic coupling microorganism system is used for processing PTA production waste water. The treatment method of the present invention has the advantages of short retention time, high treatment efficiency, small occupation area, a little investment and a little excess sludge output.
Description
Technical field
The invention belongs to environmental engineering and technology for treating industrial waste water field, relate in particular to a kind of pure terephthalic acid's production wastewater treatment method.
Background technology
Pure terephthalic acid's (being called for short PTA) is a basic raw material of producing trevira and PET resin, gives off chemical oxygen demand (COD) (COD) load in its production process up to 5～15kg/m
3Organic waste water.The composition of PTA waste water is very complicated, and principal pollutant comprise terephthalic acid, acetic acid and phenylformic acid etc., and wherein terephthalic acid is the deleterious bio-refractory organism of a kind of teratogenesis.But owing to be subjected to the stimulation of the market requirement, the PTA production capacity constantly enlarges, thereby the improvement work of PTA factory effluent is also urgent day by day.
The PTA factory effluent generally adopts activated sludge process to handle owing to be rich in organism, utilizes the metabolism of various microorganisms in the active sludge to remove organic pollutant in the waste water.The microbial method technology that is used for treatment PTA waste water at present mainly contains: traditional activated sludge process, two sections aerobic activated sludge process and anaerobic-aerobic segmentation activated sludge process.Traditional activated sludge process is the method that a kind of various microbiological treatment of making good use of in the oxygen activity sludge system contain organic pollutant waste water, history is the longest, but weak point such as have that floor space is big, energy consumption is high, the residence time is long, processing efficiency is low and excess sludge production is big, industrial application constantly reduces at present.Two sections aerobic activated sludge process that Chinese patent CN1176228A proposes have handles the high advantage of load, but has equally that floor space is big, energy consumption is high and shortcoming such as surplus sludge volume is big, has limited its applying in the PTA wastewater treatment.Anaerobic-aerobic segmentation activated sludge process is the main stream approach of present PTA production wastewater treatment, the relative traditional activated sludge process of energy consumption and two sections aerobic activated sludge process decrease, but also there is big, the startup and difficult in maintenance of anaerobic device investment, shortcomings such as total hrt is long, anaerobism section treat effluent is essential could qualified discharge through further aerobic treatment.
Summary of the invention
The objective of the invention is for shortcoming such as overcome that existing PTA production wastewater treatment method floor space is big, energy consumption is high, the residence time is long and processing efficiency is low, a kind of more efficiently PTA production wastewater treatment method is proposed, by the anaerobic and aerobic biological treatment process is coupled together, thereby realize that energy consumption in the PTA production wastewater treatment process reduces, the residence time shortens, processing efficiency improves and investment and operation and maintenance cost reduce.
The present invention proposes a kind of pure terephthalic acid's production wastewater treatment method, it is characterized in that, in being provided with the aerobic activated sludge bio-reactor of aerating apparatus, add porous-flexible carrier with biocompatibility and biologically stable, be built into the anaerobic-aerobic coupled microbiological treatment system of anaerobic activated sludge and aerobic activated sludge coexistence, in order to the treatment PTA factory effluent.
The material of the carrier described in the present invention can be chosen any material in polyurethane, Mierocrystalline cellulose, polyethylene, polystyrene, collagen/gel, the dextran etc.
The size of porous-flexible carrier and dosage need be determined according to aerator, treatment scale and organic loading, its shape is not limit, can make sphere, square, rectangular parallelepiped or other anomalistic object according to processing conditions, can adopt a kind ofly during use, also can adopt several mixing to use.The scope that its dosage can account for the volume ratio of bio-reactor useful volume is 1-40%.
The method of the invention can utilize the equipment of traditional aerobic activated sludge process and processing condition to implement.
Principle of the present invention:
The present invention joins porous-flexible carrier in the aerobic activated sludge system, can promote the enrichment and the immobilization of carrier inside and surface microorganism on the one hand; On the other hand since dissolved oxygen from the resistance of main body aerobic activated sludge system to the carrier inside transmittance process, carrier inside will progressively form anaerobism or anoxybiotic microenvironment.Because the population of microorganism distributes closely related with residing dissolved oxygen environment, will be in the main body aerobic activated sludge system mainly based on aerobic microbiological and aerobic-anaerobic microbe, in carrier inside then based on anaerobion and aerobic-anaerobic microbe.Therefore by in the aerobic activated sludge system, adding porous-flexible carrier, can realize the coupling of anaerobic biological treatment process and aerobic biological treatment process.
Because aerobe treating processes and anaerobic biological treatment process are coupled together in same biological treatment system, Persistent organic pollutants in the PTA factory effluent will be at first in carrying intravital anaerobism microenvironment the cracking of implementation structure, become micromolecular material from macromolecular material, change easy biodegradable intermediate product into from the material of difficult degradation, in aerobic overall situation, realize further biological degradation then.
In sum, the advantage of anaerobic-aerobic coupled biological facture is:
(1) residence time shortening, processing efficiency improve.In the process of anaerobic-aerobic coupled biological facture treatment PTA factory effluent, anaerobic process can effectively improve the biological degradability of hardly degraded organic substance, easily the intermediate product of degraded is realized degraded fast by aerobic processes, thereby make the residence time of whole biological treatment process shorten, the efficient of processing improves.
(2) floor space is little, investment is little.Problems such as the anaerobic-aerobic coupled biological facture can avoid traditional activated sludge process treatment PTA waste water efficient low, and the residence time is long, and floor space is big; Simultaneously also can avoid the total residence time of anaerobic-aerobic segmentation activated sludge process long, the water outlet of anaerobism section could limitation up to standard after need handling through aerobic section again.
(3) start, operation and maintenance is simple.The anaerobic-aerobic coupled biological facture is a kind of integrated coupled biological treatment process based on traditional activated sludge process, and technical process is clear, and startup, the operation and maintenance of wastewater treatment equipment are simple.
(4) excess sludge production is little.The existence of anaerobism microenvironment in the anaerobic-aerobic coupled biological system for handling can realize the original position degraded of residual active sludge, thereby reduces the output of excess sludge, reduces the total expenses of wastewater treatment effectively.
Description of drawings
The schematic flow sheet of Fig. 1 anaerobic-aerobic coupled process treatment PTA factory effluent embodiment of the present invention.
The structural representation of Fig. 2 anaerobic-aerobic coupled microbiological treatment system of the present invention.
The synoptic diagram of Fig. 3 anaerobic-aerobic coupled environment of the present invention.
Embodiment
A kind of pure terephthalic acid's production wastewater treatment method that the present invention proposes reaches embodiment in conjunction with the accompanying drawings and further specifies as follows:
The technical process of the inventive method specifically may further comprise the steps as shown in Figure 1:
1) the PTA factory effluent reduces the meltage of TA in the waste water at first through the pH regulator of peracid solutions, and through equipment for separating liquid from solid, realizes the recovery of solid TA, to reduce the organic contamination substrate concentration in the waste water;
2) the solid-liquid separation process liquid of separating out is regulated in the homogeneous pond at waste water and is carried out adjustings such as pH, basicity, nutritive salt;
3) liquid after the adjusting enters the processing of anaerobic-aerobic coupled biological system for handling biodegrade, this coupled biological system for handling is to add porous-flexible carrier with biocompatibility and biologically stable in being provided with the aerobic activated sludge bio-reactor of aerating apparatus (anaerobion in this coupled biological system for handling will effectively be improved the biological degradability of hardly degraded organic substance in the PTA factory effluent, and realize the organic quick degraded of readily biodegradable by aerobic and aerobic-anaerobic microbe.)；
4) water outlet of coupled biological system for handling realizes mud-water separation in second-level settling pond, discharges water up to standard, and most of activated sludge is back in the coupled biological system for handling and utilizes the minute quantity excess sludge discharge more simultaneously.
5) when the recovery link of TA goes wrong, the PTA factory effluent directly enters regulates the homogeneous pond, enters the coupled biological system for handling then and handles (showing that this PTA production wastewater treatment method has shock resistance preferably), shown in dotted portion among Fig. 1.
The inventive method anaerobic-aerobic coupled microbiological treatment system structure as shown in Figure 2, comprise the aerobic activated sludge bio-reactor that is provided with aerating apparatus 3, porous-flexible carrier 2 is evenly distributed in the aerobic activated sludge system 1 in this reactor.
The anaerobic-aerobic coupled environment in part of the present invention as shown in Figure 3, among the figure, porous-flexible carrier constitutes anaerobion environment 6 (internal layers of carrier) and anoxic microbial environment 5 (skin of carrier), and the aerobic activated sludge system that is trapped among the carrier outside constitutes aerobic microbiological environment 4.
Embodiment 1:
The PTA waste water that present embodiment is handled is the PTA factory effluent of certain FCFC, mainly contains terephthalic acid, acetic acid, ethyl acetate and p-methylbenzoic acid etc., and CODcr is 6708mg/L, and TA concentration is 1800mg/L, and pH is 4.9.At first by adding about acid for adjusting pH to 2.0, the TA solubleness in the waste water sharply descends the PTA factory effluent, by equipment for separating liquid from solid solid TA is separated again.Reduce to 4380mg/L through the lye CODcr after pH regulator and the solid-liquid separation, TA concentration is reduced to 400mg/L.After lye enters and regulates in the homogeneous pond, regulate pH to 7.0 ± 0.1 by adding alkali, simultaneously according to CODcr: N: P=1000: 50: 10 ratio adds nitrogen, phosphorus nutrition salt.Enter the anaerobic-aerobic coupled biological system for handling after the adjusting.
The used reactor of anaerobic-aerobic coupled biological system for handling of present embodiment is the Airlift circulating reactor of the built-in guide shell of useful volume 17L, reactor bottom is established microporous aeration device, in this reactor, put into the aerobic activated sludge system, and in the aerobic activated sludge system, adding the 1.5cm * 1.5cm * 1.5cm porous polyurethane flexible carrier of the volume percent 3% account for reactor, the reactor operation scheme adopts operate continuously under the room temperature.Aerobic activated sludge concentration in the coupled biological system for handling is 4-6g/L, and activated sludge concentration is 7-10g/L in the carrier, and the hydraulic detention time of reactor is 21-22 hour.
Water outlet CODcr after treatment reduces to 80-95mg/L, and the COD clearance is 98.5-98.8%, and TA concentration is reduced to below the 10mg/L.
Embodiment 2: the PTA waste water that present embodiment is handled is the PTA factory effluent of certain petro-chemical corporation, mainly contains terephthalic acid, acetic acid and p-methylbenzoic acid etc., and CODcr is 6526mg/L, and TA concentration is 1100mg/L, and pH is 5.2.At first by adding about acid for adjusting pH to 2.0, the TA solubleness in the waste water is gathered decline to the PTA factory effluent, by equipment for separating liquid from solid solid TA is separated again.Reduce to 5150mg/L through the lye CODcr after pH regulator and the solid-liquid separation, TA concentration is reduced to 280mg/L.After lye enters and regulates in the homogeneous pond, regulate pH to 7.0 ± 0.1 by adding alkali, simultaneously according to CODcr: N: P=1000: 50: 10 ratio adds nitrogen, phosphorus nutrition salt.Enter the anaerobic-aerobic coupled biological system for handling after the adjusting.
The reactor that the anaerobic-aerobic coupled biological system for handling of present embodiment adopts is the bubbling column reactor of useful volume 200L, establish microporous aeration device at reactor bottom, in this reactor, put into the aerobic activated sludge system, and in the aerobic activated sludge system, adding the 5cm * 5cm * 4cm porous polyethylene flexible carrier of the volume percent 15% account for reactor, the reactor operation scheme is periodical operation under the room temperature.Aerobic activated sludge in the coupled biological system for handling is 4-6g/L, and activated sludge concentration is 6-9g/L in the carrier, and the bio-degradation reactions time is 28-30 hour.
Water outlet CODcr after treatment reduces to 150-180mg/L, and the COD clearance is 97.2-97.7%, and TA concentration is reduced to below the 15mg/L.
Embodiment 3:
The PTA waste water that present embodiment is handled is the PTA factory effluent of certain petro-chemical corporation, mainly contains terephthalic acid, acetic acid, 4-CBA and p-methylbenzoic acid etc., and CODcr is 6845mg/L, and TA concentration is 1200mg/L, and pH is 5.8.The PTA factory effluent reclaims link without TA, directly enters to regulate the homogeneous pond, adds alkali and regulates pH to 7.5 ± 0.1, and simultaneously according to CODcr: N: P=1000: 50: 10 ratio adds nitrogen, phosphorus nutrition salt.Enter the anaerobic-aerobic coupled biological system for handling after the adjusting.
The used reactor of anaerobic-aerobic coupled biological system for handling of present embodiment is the Airlift circulating reactor of the built-in guide shell of useful volume 70L, establish annular aerating apparatus at reactor bottom, in this reactor, put into the aerobic activated sludge system, and in the aerobic activated sludge system, adding the spherical porous polyurethane flexible carrier of the diameter 2.5cm of volume percent 5%, reactor adopts room temperature sequence batch ((SBR) operating method.Aerobic activated sludge in the coupled biological system for handling is 4-6g/L, and activated sludge concentration is 7-9g/L in the carrier, and the bio-degradation reactions time is 19-21 hour.
Water outlet CODcr after treatment reduces to 100-120mg/L, and the COD clearance is 98.2-98.5%, and TA concentration is reduced to below the 10mg/L.
Embodiment 4:
The PTA waste water that present embodiment is handled is the PTA factory effluent of certain petro-chemical corporation, mainly contains terephthalic acid, acetic acid, 4-CBA and p-methylbenzoic acid etc., and CODcr is 6900mg/L, and TA concentration is 1400mg/L, and pH is 5.0.At first by adding about acid for adjusting pH to 2.0, the TA solubleness in the waste water is gathered decline to the PTA factory effluent, by equipment for separating liquid from solid solid TA is separated again.Reduce to 5000mg/L through the lye CODcr after pH regulator and the solid-liquid separation, TA concentration is reduced to 300mg/L.After lye enters and regulates in the homogeneous pond, regulate pH to 7.0 ± 0.1 by adding alkali, simultaneously according to CODcr: N: P=1000: 50: 10 ratio adds nitrogen, phosphorus nutrition salt.Enter the anaerobic-aerobic coupled biological system for handling after the adjusting.
The used reactor of anaerobic-aerobic coupled biological system for handling of present embodiment is the rectangular build reactor of useful volume 300L, establish 3 long strip shape aerating apparatuss at reactor bottom, in this reactor, put into the aerobic activated sludge system, and the length of side that adds volume percent 35% in the aerobic activated sludge system is the square expanded polystyrene flexible carrier of 8cm-15cm, and reactor adopts operate continuously mode under the room temperature.Aerobic activated sludge in the coupled biological system for handling is 4.5-6.2g/L, and activated sludge concentration is 7.0-9.8g/L in the carrier, and the hydraulic detention time of reactor is 32-35 hour.
Water outlet CODcr after treatment reduces to 110-130mg/L, and the COD clearance is 90.2-92.1%, and TA concentration is reduced to below the 15mg/L.
Claims (5)
1, a kind of pure terephthalic acid's production wastewater treatment method, it is characterized in that, in being provided with the aerobic activated sludge bio-reactor of aerating apparatus, add porous-flexible carrier with biocompatibility and biologically stable, be built into the anaerobic-aerobic coupled microbiological treatment system of anaerobic activated sludge and aerobic activated sludge coexistence, in order to the treatment PTA factory effluent; The scope that described porous-flexible carrier dosage accounts for the volume ratio of bio-reactor useful volume is 1-40%.
2, method of wastewater treatment according to claim 1 is characterized in that, any material in the material selection polyurethane of described porous-flexible carrier, Mierocrystalline cellulose, polyethylene, polystyrene, collagen/gel, the dextran.
3, method of wastewater treatment according to claim 1 is characterized in that, described porous-flexible carrier be shaped as one or more mixing among sphere, square, rectangular parallelepiped or the anomalistic object.
4, method of wastewater treatment according to claim 1 is characterized in that, specifically may further comprise the steps:
1) the PTA factory effluent reduces the meltage of TA in the waste water at first through the pH regulator of peracid solutions, and through equipment for separating liquid from solid, realizes the recovery of solid TA, to reduce the organic contamination substrate concentration in the waste water;
2) the solid-liquid separation process liquid of separating out is regulated in the homogeneous pond at waste water and is carried out adjustings such as pH, basicity, nutritive salt;
3) liquid after the adjusting enters the processing of anaerobic-aerobic coupled biological system for handling biodegrade;
4) water outlet of coupled biological system for handling realizes mud-water separation in second-level settling pond, discharges water up to standard, and most of activated sludge is back in the coupled biological system for handling and utilizes the minute quantity excess sludge discharge more simultaneously.
5, method of wastewater treatment according to claim 4 is characterized in that, also comprises:
5) when the recovery link of TA goes wrong, the PTA factory effluent directly enters regulates the homogeneous pond, enters the coupled biological system for handling then and handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100911311A CN1270984C (en) | 2004-11-19 | 2004-11-19 | Process for treating waste water of producing refined terephthalic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100911311A CN1270984C (en) | 2004-11-19 | 2004-11-19 | Process for treating waste water of producing refined terephthalic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1623930A CN1623930A (en) | 2005-06-08 |
| CN1270984C true CN1270984C (en) | 2006-08-23 |
Family
ID=34766267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100911311A Expired - Fee Related CN1270984C (en) | 2004-11-19 | 2004-11-19 | Process for treating waste water of producing refined terephthalic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1270984C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307109C (en) * | 2005-07-22 | 2007-03-28 | 中国石化仪征化纤股份有限公司 | Method for recovering aromatic carboxylic acid in waste water |
| CN104276721A (en) * | 2013-07-08 | 2015-01-14 | 中石化洛阳工程有限公司 | Method for treating pure terephthalic acid production wastewater |
| CN105347629A (en) * | 2015-12-11 | 2016-02-24 | 广西南宁绿泽环保科技有限公司 | Multistage compound moving bed biofilm reactor (MC-MBBR) |
| CN106927633A (en) * | 2017-04-01 | 2017-07-07 | 来安县万博丰环保科技有限公司 | A kind of crude terephthalic acid production wastewater treatment system |
| CN108128978A (en) * | 2017-12-29 | 2018-06-08 | 江苏美泓环保科技有限公司 | The treatment process of water from refined p-benzene dicarboxylic acid production |
| CN113461249A (en) * | 2020-03-30 | 2021-10-01 | 中石化南京化工研究院有限公司 | Terephthalic acid production wastewater treatment method based on biological synergistic means |
| CN111689654A (en) * | 2020-06-30 | 2020-09-22 | 新疆中泰创新技术研究院有限责任公司 | Sewage treatment system and method capable of reducing PTA anaerobic sludge feeding |
-
2004
- 2004-11-19 CN CNB2004100911311A patent/CN1270984C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1623930A (en) | 2005-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | A novel shortcut nitrogen removal process using an algal-bacterial consortium in a photo-sequencing batch reactor (PSBR) | |
| CN101891344B (en) | Activated sludge-biomembrane combined circulating flow denitrification and desophorization integrated sewage treatment device and method | |
| CN102491588A (en) | Method and device for sewage treatment | |
| CN1012360B (en) | Process for biological purificaiton of waste water | |
| CN105417727A (en) | Method for deeply treating micro-polluted source water through in-situ enrichment, immobilization and acclimatization of indigenous microorganisms | |
| CN106430845A (en) | Kitchen garbage wastewater treatment apparatus | |
| CN101723512A (en) | Ammonia-contained waste water high-efficiency biochemical processing method | |
| CN100336749C (en) | Garbage percolation liquid treating system and method | |
| CN1255341C (en) | Activated sludge and biomembrane combined biological denitrification and dephosphorization treatment process | |
| CN102653436B (en) | Sewage reuse treatment system and process | |
| CN102583924A (en) | Tubificidae sludge decrement enhanced biological denitrification device | |
| Bernat et al. | Biological treatment of leachate from stabilization of biodegradable municipal solid waste in a sequencing batch biofilm reactor | |
| CN1270984C (en) | Process for treating waste water of producing refined terephthalic acid | |
| CN1143941A (en) | Method of operating sequencing batch reactor | |
| Wun-Jern | A sequencing batch anaerobic reactor for treating piggery wastewater | |
| CN1258485C (en) | Process for treating waste water by aerobic-anaerobic microbic repeated coupling | |
| CN105152330A (en) | Treatment method for landfill leachate | |
| CN112830634A (en) | High-concentration wastewater COD and N synchronous degradation process in same tank | |
| CN111875186A (en) | Biological treatment method for display material production wastewater | |
| CN1267363C (en) | Sewage treatment method using sequential batch type reactor | |
| Tawfik | Polyurethane trickling filter in combination with anaerobic hybrid reactor for treatment of tomato industry wastewater | |
| CN101734791B (en) | Method for treating biological sewage | |
| Bakera et al. | Modification of sequencing batch reactor (SBR) using novel acryl-fiber (AFBC) for sanitary landfill leachate safe disposal | |
| Ling et al. | Brewery wastewater treatment using suspended and attached growth sequencing batch reactors | |
| CN202415336U (en) | Device for reinforcing biological denitrification during sludge reduction with tubificidae |
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: 20060823 Termination date: 20111119 |