CN1039784A - Pure terephthalic acid (PTA) Wastewater Treatment - Google Patents
Pure terephthalic acid (PTA) Wastewater Treatment Download PDFInfo
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- CN1039784A CN1039784A CN89103965A CN89103965A CN1039784A CN 1039784 A CN1039784 A CN 1039784A CN 89103965 A CN89103965 A CN 89103965A CN 89103965 A CN89103965 A CN 89103965A CN 1039784 A CN1039784 A CN 1039784A
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- anaerobic
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- terephthalic acid
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- 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
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of Pure Terephthalic Acid Wastewater Treatment, it is handled by pre-treatment, anaerobic biological treatment, aerobe and forms.In pre-treatment, the pH value height according to raw wastewater adds or does not add acid, through reaction precipitation, can remove the terephthalic acid more than 90%, and waste water through the abundant degraded of anaerobion, is removed COD wherein again.Go out the height of water concentration again according to anaerobism, the tandem system that adopts one-level aeration and secondary aeration to form is further removed the COD in the waste water.The another kind of flow process of handling pure terephthalic acid's factory effluent, cancellation acid precipitation pond.Make total hydraulic detention time less than 45 hours.
Description
The present invention relates to the treatment technology of a kind of wastewater processing technology, particularly pure terephthalic acid (Pure terepthalic acid is called for short PTA) factory effluent.The pure terephthalic acid is a kind of important chemical product, and it is widely used in synthetic resins, polyster fibre, plastics film, aspects such as softening agent and coating material production.The waste water of discharging in the PTA production process contains terephthalic acid, tolyl acid, multiple organic substances such as ritalin, ester acid, acetaldehyde.This waste strength height, the water yield are big, and water quality, water yield vary within wide limits, and difficulty is handled.
At present, the technology of treatment PTA factory effluent mainly contains two big classes, and promptly physical chemistry is handled and biological treatment.Comparatively sophisticated in these technologies is aerobic biological treatment process, but handling, single aerobe needs to regulate for a long time and aeration, thereby cause the treatment facility floor space big, construction investment and operational and administrative expenses height, and can not the recover materials and the energy, cause the waste on the energy and the resource.
Task of the present invention provides a kind of: the treatment time is short, and floor space is little, and energy consumption is low, the PTA production wastewater treatment technology that working cost is few.The feature of this treatment process is to have replaced single extended aeration biological treatment with " anaerobic-aerobic " combination process.This combination process not only makes anaerobic treatment can bear higher organic loading, recycle the energy that produces, and the PTA waste water biodegradable after anaerobic treatment is improved significantly, carry out than the direct aerobic treatment of raw wastewater is easier, thereby make water treatment effect even more ideal, surplus sludge volume also significantly reduces.
Accompanying drawing is PTA production wastewater treatment provided by the invention technical process, below in conjunction with accompanying drawing the present invention is described in further detail.
With reference to accompanying drawing, the PTA factory effluent is by being pumped into acid precipitation pond (1), while is according to the pH value height of raw wastewater, add or do not add acid, reaction precipitation through 5-8 hour, terephthalic acid more than 90% (being called for short TA) is removed, and the TA that precipitate and separate is come out can be used as multi-purpose industrial chemicals such as producing paint, polyester foam, polyester resin.Acid precipitation pond (1) water outlet flows into equalizing tank (2), adds nutritive elements such as nitrogen, phosphorus simultaneously in equalizing tank (2), to satisfy the needs of biological treatment.The water outlet of the water outlet of the water outlet of equalizing tank (2) and anaerobic biological treatment device (4) and anaerobism settling tank (5) flows into mixing pit (3) by a certain percentage simultaneously.After this, with pump mixing water is sent into anaerobic biological treatment device (4).Device (4) can adopt up-flow anaerobic sludge blanket (4-1) or adopt backflow anaerobe filter bed (4-2), waste water in device the residence time less than 24 hours, abundant degraded through anaerobion, COD clearance in the waste water is respectively: the up-flow anaerobic sludge blanket device is more than 90%, backflow anaerobe filter bed device is more than 78%, waste water after anaerobic treatment is imported the aerobe processing unit by intermediate pool (6) with pump.
Up-flow anaerobic sludge blanket top is provided with gas, liquid, solid, triphase separator, and the bottom is provided with perforated pipe (or many nozzles) water-distributing device, does not establish agitator in the device, need not adorn any packing material.Various fillers (zeolite, haydite, soft fiber, plastic filler etc.) can be loaded in backflow anaerobe filter bed inside.Top seal is also established exhaust, water port, the same up-flow anaerobic sludge blanket of substructure.
The aerobe processing unit, can go out the height of water concentration according to anaerobism, employing is by one-level aeration tank (7), it can be complete hybrid activated sludge tank and two-stage aeration tank (10), also can be contact-oxidation pool, the tandem system of composition or adopt any aeration tank among them.
In the aerobic treatment system of series connection, settling tank (8) water outlet enters intermediate pool (9), again with being pumped into two-stage aeration tank (10).The isolated mud of settling tank (8) can be back to one-level aeration tank (7), mixing pit (3) respectively or efflux.The water of being discharged by two-stage aeration tank (10) directly effluxes or discharging after settling tank (11) separates.Efflux or be back to mixing pit (3) through the settled mud of settling tank (11), anaerobism water outlet total residence time in the series connection aerobic treatment device is 15.2 hours, and water outlet COD is 220 mg/litre when water inlet COD is 1500 mg/litre, and the clearance of COD is 85%.
Aerobic treatment is if adopt the biological contact oxidation metallization processes separately, and then the discharging of settling tank (11) back can be directly discharged or be entered in the water outlet behind the aeration.Retention time of sewage 15 hours; Water outlet COD is the 50-240 mg/litre when water inlet COD is the 700-2000 mg/litre; COD clearance 83-93%.
Aerobic treatment is if having adopted separately to close mixes active sludge oxidation technology, and then retention time of sewage is 14 hours, and when water inlet COD was the 180-780 mg/litre, water outlet COD was the 30-70 mg/litre, COD clearance 83-96%.
The PTA factory effluent is in treatment scheme shown in the accompanying drawing, and total residence time was less than 65 hours.
Pure Terephthalic Acid Wastewater Treatment also has another kind of flow process, with flow process shown in the accompanying drawing, the following aspects difference is arranged.
1, the PTA factory effluent directly enters equalizing tank, the cancellation acid precipitation.
2, anaerobic biological treatment device can adopt " up-flow anaerobic sludge blanket ".Or " upflow type anaerobic multiple-hearth " upflow type anaerobic multiple-hearth is made up of anaerobic mud bed and anaerobic filter.The Sludge Bed height is the 1/2-2/3 of whole device, and filtering layer accounts for the 1/3-1/2 of device, and concrete pattern is with the corresponding position of up-flow anaerobic sludge blanket backflow anaerobic filter bed.Filling kind is with backflow anaerobe filter bed.
3, anaerobic biological treatment art breading result:
Up-flow anaerobic sludge blanket: the COD clearance is more than 60%, and retention time of sewage was less than 18 hours.
The upflow type anaerobic multiple-hearth: the COD clearance is more than 60%, and retention time of sewage was less than 15.5 hours.
4, aerobic biological treatment process adopts the catalytic oxidation treatment process, and retention time of sewage was less than 16 hours, and final outflow water COD is less than 300 mg/litre.
5, the PTA factory effluent is in this processing whole process, and total hydraulic detention time was less than 45 hours.
Claims (4)
1, a kind of PTA Wastewater Treatment of forming of handling by pre-treatment-anaerobic biological treatment-aerobe, it is characterized in that the anaerobic biological treatment device can adopt up-flow anaerobic sludge blanket [4-1], three types of backflow anaerobe filter bed [4-2] and upflow type anaerobic multiple-hearths [3-2].
2, it is characterized in that by claim 1 predetermined process technology up-flow anaerobic sludge blanket [4-1] top is provided with the gas, liquid, solid triphase separator, the bottom is provided with the perforated pipe water-distributing device, does not adorn any packing material.Backflow anaerobe filter bed inside can be by adorning various fillers, and top seal also is provided with exhaust, the draining mouth of pipe, and down structure is with anaerobic mud bed.The upflow type anaerobic multiple-hearth is made up of anaerobic mud bed and anaerobic filter.
3, by claim 1 and 2 predetermined process technology, it is characterized in that the excess sludge of aerated precipitation tank or microbial film can enter anaerobic processing device in right amount.
4, by claim 3 predetermined process technology, it is characterized in that aerobic biological treatment process adopts respectively, active sludge and bio-contact oxidation tandem process, activated sludge process and biological contact oxidation metallization processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89103965A CN1039784A (en) | 1989-06-20 | 1989-06-20 | Pure terephthalic acid (PTA) Wastewater Treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89103965A CN1039784A (en) | 1989-06-20 | 1989-06-20 | Pure terephthalic acid (PTA) Wastewater Treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1039784A true CN1039784A (en) | 1990-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89103965A Pending CN1039784A (en) | 1989-06-20 | 1989-06-20 | Pure terephthalic acid (PTA) Wastewater Treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN1039784A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337934C (en) * | 2004-10-29 | 2007-09-19 | 中国石油化工股份有限公司 | High concentration m-phthalic acid production waste water processing method |
| CN100427415C (en) * | 2006-09-15 | 2008-10-22 | 江苏工业学院 | Process for treating waste water of refined terephthalic acid |
| CN101254985B (en) * | 2008-04-02 | 2010-06-02 | 中国纺织工业设计院 | PTA refined mother liquor reclaiming method and system |
| CN101544429B (en) * | 2009-04-23 | 2011-06-15 | 中国石化仪征化纤股份有限公司 | Extraction-hyperfiltration-reverse osmosis combined method for treating PTA refined wastewater |
| CN101993164B (en) * | 2009-08-25 | 2011-12-28 | 慈溪市洁达纳米复合材料有限公司 | Method for treating and recovering wastewater generated during sharpening polybutylene terephthalate (PBT) brush threads |
| CN103588349A (en) * | 2012-08-17 | 2014-02-19 | 中国石油化工股份有限公司 | Processing method of terephthalic acid 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 |
| TWI511937B (en) * | 2010-10-01 | 2015-12-11 | Kurita Water Ind Ltd | An anaerobic treatment method and treatment device for the drainage of terephthalic acid |
| 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 |
| CN109133245A (en) * | 2018-09-03 | 2019-01-04 | 福州大学 | A kind of Co (II)/Mn (II) method in selective absorption PTA wastewater |
| 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 |
| CN111762981A (en) * | 2020-07-21 | 2020-10-13 | 新疆中泰创新技术研究院有限责任公司 | PTA sewage treatment system and treatment method |
-
1989
- 1989-06-20 CN CN89103965A patent/CN1039784A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337934C (en) * | 2004-10-29 | 2007-09-19 | 中国石油化工股份有限公司 | High concentration m-phthalic acid production waste water processing method |
| CN100427415C (en) * | 2006-09-15 | 2008-10-22 | 江苏工业学院 | Process for treating waste water of refined terephthalic acid |
| CN101254985B (en) * | 2008-04-02 | 2010-06-02 | 中国纺织工业设计院 | PTA refined mother liquor reclaiming method and system |
| CN101544429B (en) * | 2009-04-23 | 2011-06-15 | 中国石化仪征化纤股份有限公司 | Extraction-hyperfiltration-reverse osmosis combined method for treating PTA refined wastewater |
| CN101993164B (en) * | 2009-08-25 | 2011-12-28 | 慈溪市洁达纳米复合材料有限公司 | Method for treating and recovering wastewater generated during sharpening polybutylene terephthalate (PBT) brush threads |
| TWI511937B (en) * | 2010-10-01 | 2015-12-11 | Kurita Water Ind Ltd | An anaerobic treatment method and treatment device for the drainage of terephthalic acid |
| CN103588349A (en) * | 2012-08-17 | 2014-02-19 | 中国石油化工股份有限公司 | Processing method of terephthalic acid waste water |
| CN103588349B (en) * | 2012-08-17 | 2015-09-02 | 中国石油化工股份有限公司 | A kind for the treatment of process of terephthalic acid wastewater |
| 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 |
| 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 |
| CN109133245A (en) * | 2018-09-03 | 2019-01-04 | 福州大学 | A kind of Co (II)/Mn (II) method in selective absorption PTA wastewater |
| CN109133245B (en) * | 2018-09-03 | 2021-06-29 | 福州大学 | Method for selectively adsorbing Co (II)/Mn (II) in purified terephthalic acid wastewater |
| 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 |
| CN111762981A (en) * | 2020-07-21 | 2020-10-13 | 新疆中泰创新技术研究院有限责任公司 | PTA sewage treatment system and treatment method |
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