CN104261502A - Treatment method and device of wastewater containing organic solvent - Google Patents
Treatment method and device of wastewater containing organic solvent Download PDFInfo
- Publication number
- CN104261502A CN104261502A CN201410499097.5A CN201410499097A CN104261502A CN 104261502 A CN104261502 A CN 104261502A CN 201410499097 A CN201410499097 A CN 201410499097A CN 104261502 A CN104261502 A CN 104261502A
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- organic solvent
- cooled condenser
- spray liquid
- water
- packing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a treatment method and device of wastewater containing an organic solvent. The method comprises the steps as follows: the wastewater containing an organic solvent is blown off by using a dry gas, so that water and the organic solvent exist in a gaseous form; the organic solvent is adsorbed through a hydrophobic adsorption device; moisture is removed through a dehumidifying device; and the dry gas circularly flows between the devices by virtue of a blower. The device manufactured according to the method comprises a packed tower, a dehumidifying device, an adsorption device and an air circulating pipeline, wherein the packed tower is composed of a spray liquid distributor, packing, a spray liquid pond and a spray pump; the dehumidifying device is composed of a refrigeration compressor, an air-cooled condenser, a water-cooled condenser, a refrigerating expansion valve and a refrigerating evaporator, which are connected in series to form a refrigerating circulation system; and the air circulating pipeline is sequentially connected with a gas outlet of the packed tower, the adsorption device, the refrigerating evaporator, the air-cooled condenser, a circulating blower, and a packed tower dry gas inlet. Compared with a traditional distillation method for recovering the organic solvent, the energy is saved by over 70%.
Description
Technical field
The present invention relates to the sewage treatment equipment containing organic solvent, specifically containing organic solvent method of wastewater treatment and device thereof.
Background technology
A large amount of organic waste water containing N,N-DIMETHYLACETAMIDE (DMAc) or dimethyl formamide (DMF) all can be produced in wet-spinning, hollow-fibre membrane manufacturing processed.Direct discharge causes environmental pollution on the one hand containing the waste water of organic solvent, also causes the wasting of resources on the one hand in addition.
The most economical technique means that organic solvent may be the contaminated wastewater solved containing organic solvent is reclaimed from the waste water containing organic solvent.
DMAc or DMF boiling point is higher than the boiling point of water, when DMAc or DMF in waste water is about 20% time, take these waste water reclamation organic solvents of distillation method process, because water vaporization heat is large, therefore, utilize distillation method to reclaim organic solvent and there is the large defect of energy consumption.
Summary of the invention
The object of the invention is to for above-mentioned Problems existing and deficiency, there is provided one to utilize hydrophobic nature adsorption unit and the associated working of heat pump class dehydrating unit, with utilize Conventional espresso method reclaim organic solvent relative energy-saving more than 70% containing organic solvent method of wastewater treatment and device thereof.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
Containing organic solvent method of wastewater treatment, dry gas stripping is utilized to contain the waste water of organic solvent, water and organic solvent are existed in the form of a vapor, then through hydrophobic adsorption device absorbing organic solvent, again through dehydrating unit removing moisture, utilize blower fan that gas is circulated between said apparatus.
Containing organic solvent wastewater treatment equipment, comprise packing tower, dehydrating unit, adsorption unit and air circulation duct;
Packing tower is made up of spray liquid sparger, filler, spray liquid pool and feeding spraying pump, spray liquid pool and wastewater outlet is located at bottom packing tower, packing tower bottom is provided with dry gas import, packing area is provided with in the middle part of packing tower, packing area is built with filler, spray liquid sparger is equipped with on top, packing area, packing tower top is provided with gas outlet, and wastewater outlet pipeline is communicated with spray liquid sparger by feeding spraying pump and water-cooled condenser.
Dehydrating unit is made up of refrigeration compressor, air-cooled condenser, water-cooled condenser, refrigeration expansion valve and refrigerating evaporator, and parallel-series becomes cooling cycle system.
Air circulation duct is bonding pad tower gas outlet, adsorption unit, refrigerating evaporator, air-cooled condenser, recirculation blower, the import of packing tower dry gas successively.
Between water-cooled condenser and spray liquid sparger, pipeline is provided with the loop being back to and spraying liquid pool, between water-cooled condenser and spray liquid sparger, pipeline and loop is respectively equipped with Water flow adjusting valve door.Water flow adjusting valve door, its function is exactly regulate deliver to spray liquid sparger and directly get back to the discharge ratio spraying liquid pool.
Hydrophobic adsorption device can optionally absorbing organic solvent from air.Adsorption unit can be the molecular sieve concentration runner utilizing hydrophobic molecular sieve series to make, or utilizes the fixed adsorption bed of molecular sieve manufacture of hydrophobic.After the organic solvent of adsorption device adsorbs some amount, by heating, organic solvent can be made to regenerate from adsorption unit, and the organic solvent contained in regeneration air can realize condensation recovery by cooling.
The refrigeration agent of discharging from refrigeration compressor first cools through water-cooled condenser after air-cooled condenser cooling again.The heat-eliminating medium of cooler condenser is exactly need the waste water containing organic solvent to be processed, and the function of water-cooled condenser also makes the while of making refrigerant cools to need the waste water containing organic solvent to be processed to heat.
Feeding spraying pump has two functions, one of function is exactly make the water in spray liquid pool through water-cooled condenser, refrigeration system be cooled, and another one function is exactly make to need the waste water containing organic solvent to be processed to be distributed to equably filler from spray liquid sparger in spray liquid pool.
Water section through water-cooled condenser sprays on the filler of packing tower through spray liquid sparger as spray liquid, and part directly sends spray liquid pool back to.
The function of recirculation blower is exactly make air cycle through the air-cooled condenser of the adsorption unit of packing tower, hydrophobic, the refrigerating evaporator of refrigeration system and refrigeration system, finally sends packing tower back to.
The present invention is by above-mentioned structure design, dry gas is utilized to carry the waste water containing organic solvent by packing tower equivalent, water and organic solvent are existed in the form of a vapor, recycling hydrophobic nature adsorption unit and the associated working of heat pump class dehydrating unit, first utilize hydrophobic adsorption device absorbing organic solvent, then utilizing dehydrating unit to remove moisture, reclaiming organic solvent relative energy-saving more than 70% with utilizing Conventional espresso method.
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, containing organic solvent wastewater treatment equipment, comprise packing tower 1, dehydrating unit, adsorption unit 2 and air circulation duct;
Packing tower 1 is made up of spray liquid sparger 12, filler 13, spray liquid pool 14 and feeding spraying pump 9, spray liquid pool 14 and wastewater outlet is located at bottom packing tower 1, packing tower 1 bottom is provided with dry gas import, packing area is provided with in the middle part of packing tower 1, packing area is built with filler 13, spray liquid sparger 12 is equipped with on top, packing area, packing tower 1 top is provided with gas outlet, and wastewater outlet pipeline is communicated with spray liquid sparger 12 by feeding spraying pump 9 and water-cooled condenser 7
Dehydrating unit is made up of refrigeration compressor 6, air-cooled condenser 4, water-cooled condenser 7, refrigeration expansion valve 8 and refrigerating evaporator 3, and parallel-series becomes cooling cycle system,
Air circulation duct is bonding pad tower 1 gas outlet, adsorption unit 2, refrigerating evaporator 3, air-cooled condenser 4, recirculation blower 5, the import of packing tower 1 dry gas successively.
Between water-cooled condenser 7 and spray liquid sparger 12, pipeline is provided with the loop being back to and spraying liquid pool 14, and pipeline is provided with Water flow adjusting valve door 11, and loop is provided with Water flow adjusting valve door 10.
In the present invention, refrigeration system can be multiple, and in addition, packing tower can be also cross-current type, and namely hydrojet flows according to vertical direction, and air prolongs horizontal direction flowing.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (3)
1. containing organic solvent method of wastewater treatment, it is characterized in that: utilize dry gas stripping to contain the waste water of organic solvent, water and organic solvent are existed in the form of a vapor, then through hydrophobic adsorption device absorbing organic solvent, again through dehydrating unit removing moisture, utilize blower fan that gas is circulated between said apparatus.
2. what make according to claim 1 contains organic solvent wastewater treatment equipment, it is characterized in that: comprise packing tower (1), dehydrating unit, adsorption unit (2) and air circulation duct;
---packing tower (1) is by spray liquid sparger (12), filler (13), spray liquid pool (14) and feeding spraying pump (9) composition, spray liquid pool (14) and wastewater outlet are located at packing tower (1) bottom, packing tower (1) bottom is provided with dry gas import, packing tower (1) middle part is provided with packing area, packing area is built with filler (13), spray liquid sparger (12) is equipped with on top, packing area, packing tower (1) top is provided with gas outlet, wastewater outlet pipeline is communicated with spray liquid sparger (12) by feeding spraying pump (9) and water-cooled condenser (7),
---dehydrating unit is made up of refrigeration compressor (6), air-cooled condenser (4), water-cooled condenser (7), refrigeration expansion valve (8) and refrigerating evaporator (3), and parallel-series becomes refrigerating circulation;
---air circulation duct is bonding pad tower (1) gas outlet, adsorption unit (2), refrigerating evaporator (3), air-cooled condenser (4), recirculation blower (5), packing tower (1) dry gas import successively.
3. wastewater treatment equipment according to claim 2, it is characterized in that: between water-cooled condenser (7) and spray liquid sparger (12), pipeline is provided with the loop being back to and spraying liquid pool (14), and is respectively equipped with Water flow adjusting valve door on pipeline and loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499097.5A CN104261502B (en) | 2014-09-26 | 2014-09-26 | Containing organic solvent method of wastewater treatment and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410499097.5A CN104261502B (en) | 2014-09-26 | 2014-09-26 | Containing organic solvent method of wastewater treatment and device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104261502A true CN104261502A (en) | 2015-01-07 |
| CN104261502B CN104261502B (en) | 2016-08-24 |
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| CN201410499097.5A Active CN104261502B (en) | 2014-09-26 | 2014-09-26 | Containing organic solvent method of wastewater treatment and device thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN106693411A (en) * | 2017-01-25 | 2017-05-24 | 天津中医药大学 | High-efficiency normal-pressure low-temperature concentration system applicable to traditional Chinese medicinal liquor |
| CN106986486A (en) * | 2017-05-10 | 2017-07-28 | 南京工业大学 | High organic effluent treatment plant that contains salt |
| CN108203374A (en) * | 2016-12-19 | 2018-06-26 | 曾舟华 | Phosphorus pentoxide haze concentrates the method and device of dilute formic acid |
| CN110407383A (en) * | 2019-07-02 | 2019-11-05 | 太原理工大学 | A kind of device polluted for handling underground water volatile organic matter |
| CN111170387A (en) * | 2018-11-13 | 2020-05-19 | 上海景峰制药有限公司 | Drawer type split water organic solvent evaporation device |
| CN111792691A (en) * | 2020-08-11 | 2020-10-20 | 导洁(北京)环境科技有限公司 | Device for concentrating high-salinity wastewater |
| CN113856219A (en) * | 2021-10-20 | 2021-12-31 | 江苏盛勤环境工程有限公司 | Low-temperature normal-pressure evaporation device and evaporation process thereof |
| WO2022032858A1 (en) * | 2020-08-14 | 2022-02-17 | 中国华能集团清洁能源技术研究院有限公司 | System and process for cleaning flue gas with low-temperature pentane and simultaneously performing desulfurization and decarbonization |
| RU2773219C1 (en) * | 2021-07-29 | 2022-05-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Residual oil wastewater treatment plant |
| CN117085458A (en) * | 2023-10-20 | 2023-11-21 | 中国华能集团清洁能源技术研究院有限公司 | Combined purifying tower for flue gas cooling and adsorption |
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| JPH0214712A (en) * | 1988-06-30 | 1990-01-18 | Toshiba Corp | Gas separation device |
| CN201684526U (en) * | 2009-11-27 | 2010-12-29 | 胜利油田胜利勘察设计研究院有限公司 | CO2 drying device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN108203374A (en) * | 2016-12-19 | 2018-06-26 | 曾舟华 | Phosphorus pentoxide haze concentrates the method and device of dilute formic acid |
| CN106693411A (en) * | 2017-01-25 | 2017-05-24 | 天津中医药大学 | High-efficiency normal-pressure low-temperature concentration system applicable to traditional Chinese medicinal liquor |
| CN106986486A (en) * | 2017-05-10 | 2017-07-28 | 南京工业大学 | High organic effluent treatment plant that contains salt |
| CN111170387B (en) * | 2018-11-13 | 2021-12-17 | 上海景峰制药有限公司 | Drawer type split water organic solvent evaporation device |
| CN111170387A (en) * | 2018-11-13 | 2020-05-19 | 上海景峰制药有限公司 | Drawer type split water organic solvent evaporation device |
| CN110407383A (en) * | 2019-07-02 | 2019-11-05 | 太原理工大学 | A kind of device polluted for handling underground water volatile organic matter |
| CN111792691A (en) * | 2020-08-11 | 2020-10-20 | 导洁(北京)环境科技有限公司 | Device for concentrating high-salinity wastewater |
| WO2022032858A1 (en) * | 2020-08-14 | 2022-02-17 | 中国华能集团清洁能源技术研究院有限公司 | System and process for cleaning flue gas with low-temperature pentane and simultaneously performing desulfurization and decarbonization |
| RU2773219C1 (en) * | 2021-07-29 | 2022-05-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Residual oil wastewater treatment plant |
| CN113856219A (en) * | 2021-10-20 | 2021-12-31 | 江苏盛勤环境工程有限公司 | Low-temperature normal-pressure evaporation device and evaporation process thereof |
| CN117085458A (en) * | 2023-10-20 | 2023-11-21 | 中国华能集团清洁能源技术研究院有限公司 | Combined purifying tower for flue gas cooling and adsorption |
| CN117085458B (en) * | 2023-10-20 | 2024-02-13 | 中国华能集团清洁能源技术研究院有限公司 | Combined purifying tower for flue gas cooling and adsorption |
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|---|---|
| CN104261502B (en) | 2016-08-24 |
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