CN2763262Y - Equipment for treating wastew ater from dys processing by using membrane-tech. - Google Patents
Equipment for treating wastew ater from dys processing by using membrane-tech. Download PDFInfo
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- CN2763262Y CN2763262Y CN 200520053838 CN200520053838U CN2763262Y CN 2763262 Y CN2763262 Y CN 2763262Y CN 200520053838 CN200520053838 CN 200520053838 CN 200520053838 U CN200520053838 U CN 200520053838U CN 2763262 Y CN2763262 Y CN 2763262Y
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Abstract
The utility model discloses a dye waste water treating plant, which is on the basis of the membrane technology. The utility model comprises seven units such as a waste water regulating pond, a flocculation mixing reaction tank, a settling pond, an ultra-filtration circulating unit, a nano filtration circulating unit, an adsorption bleaching unit, a system electric appliance control unit, etc. The utility model is a novel membrane treating system of dye waste water. The utility model is characterized in that before the dye waste water enters the membrane system, the COD and the pH valve of the waste water is mixed and regulated through the regulating pond, and then, the waste water is flocculated in the flocculation mixing reaction tank and settles in the settling tank; clarified liquid is treated by the ultra-filtration, the ultra-filtration dialysis liquid is carried out with the nano filtration treatment and the adsorption of the activated carbon, thereby, the discharged water is in accordance with the secondary discharge standard of the waste water. The utility model has the advantages of low cost and high efficiency.
Description
Technical field
The utility model relates to a kind of treatment unit of waste water, particularly relates to a kind of dye wastewater treatment device based on membrane technique, belongs to the field of waste water treatment of environment protection.
Background technology
Along with the development of dyestuff and printing and dyeing industry, its factory effluent has become one of current topmost pollution source of water body.Dyestuff at first is that contamination level is big as the characteristics of the important source of pollution of environment, world's dyestuff annual production at present is about ten thousand tons of 80-90, China's dyestuff annual production reaches 150,000 tons, occupies prostatitis, the world, has the dyestuff of 10%-15% to enter environment with waste water approximately in the production of dyestuff with in using.China's dyestuffs industries, textile printing and dyeing industry prosperity, waste water from dyestuff is even more serious to the pollution of environment, and according to the data of environment communique in 1998, China's industrial wastewater treatment rate is about 87.4% at present, administers qualification rate and only handles 63% of total amount for existing device.The secondth, as many, the complex structure of dyestuff kind of environmental pollutant.The synthetic dyestuff that the whole world is used reach kind more than 30,000, and the dyestuff more than 80% is the complex organic compound that contains azo bond, poly aromatic nucleus.Dyestuffs industries is one of extremely serious industry of environmental pollution in the chemical industry.Printing and dyeing and waste water from dyestuff colourity are big; The organic concentration height, the component complexity; Recalcitrant substance is many; Contain a large amount of inorganic salt, sulfide etc., belong to unmanageable trade effluent.Dye molecule is because it has complicated aromatic hydrocarbon molecular structure and is difficult to more removes, and this is in water surrounding or in illumination with stable existence under the condition of oxygenant is arranged when manufacturing and designing for these structures.The 3rd is that most dyestuffs are poisonous hardly degraded organic substance, and chemical stability is strong, has carcinogenic, teratogenesis, mutagenic " three cause " effect.Even dye component concentration remaining in the waste water is very low, enters water body and also can cause the water body transmittance to reduce the destruction that causes water ecosystem.Therefore, waste water from dyestuff effectively is treated as important problem.
Azoic dyestuff is that quantity is maximum, the synthetic dyestuff of output maximum, from last century the seventies begin, people just research contain the wastewater treatment method of azoic dyestuff.Multiple treatment technologies such as physics method, chemical method, biological process have successively been developed.
1, physics method: mainly comprise methods such as absorption (air supporting) method, membrane separation process, supersonic gas vibrating method.What application was maximum in physical treatment process is absorption method.At present, the external main active carbon adsorption that adopts, this method is very effective to dissolved organic matter in the removal water, but it can not remove colloid and hydrophobic dye in the water, and water-soluble dyes such as cationic dyestuff, substantive dyestuff, matching stain, reactive dyestuffs are had absorption property preferably.Newborn MnO
2To the absorption accords with Langmuir adsorption isotherm of tropeolin-D, adsorption rate is big, can make the tropeolin-D percent of decolourization reach 99%.The adsorbed gas float glass process is exactly dyestuff ion and other soluble substances of at first using in powdery inorganic adsorbent (as wilkinite, kaolin etc.) the absorption waste water of some high dispersing, add gas floatation agent then, change it into hydrophobic particle, remove by air supporting, clearances such as matching stain, cationic dyestuff and substantive dyestuff are reached more than 92%.
The membrane technique that is applied to treatment of dyeing wastewater mainly contains ultra-filtration and reverse osmosis.It is 80%～97% that the ultra-filtration technical finesse contains the dispersed dye decolorization rate of wastewater, and the TOC clearance is 60%～85%.The clearance of reverse osmosis method dissolved solids reaches 85%～99%, and the dyestuff average recovery rate is 75%～85%.
Can make ultrasonic technology become the effective ways of wastewater treatment by control frequency of ultrasonic and saturated gas.Nine divisions of China in remote antiquity, Zhangjagang City fine chemistry industry station-service is according to the FBZ sewage treatment equipment dye wastewater treatment using of supersonic gas vibrating technical project, and the colourity average removal rate is 97%, COD
CrClearance is 90.6%, and gross contamination load reduction rate is 85.9%
2, chemical method: chemical method mainly comprises methods such as chemical coagulation process, chemical oxidization method, photochemical catalysis oxidation style, electrochemical process.Chemical coagulation process is the common method of treatment of dyeing and printing, once is considered to one of effective, the most most economical decolouring technology.Used coagulating agent can be divided into inorganic coagulant, multifunctional efficient compound coagulant, organic polymer coagulating agent etc. at present.Once coagulating agent such as ferrous sulfate, polymerize aluminum chloride were studied the active dye printing waste water coagulating treatment, the result shows that ferrous sulfate is the optimal coagulation agent, and the clearance of colourity can reach 75% to 94% respectively.Chemical oxidization method is one of main method of decolorizing printing and dyeing waste water, is to utilize various oxidation means the dyestuff chromophoric group is destroyed and to decolour.Press the different of oxygenant and oxidizing condition, chemical oxidization method can be divided into: ozone oxidation method, deep oxidation method.The photochemical catalysis oxidation style developed rapidly in recent years as a kind of deep oxidation technology of degradation of organic substances.Make in this way degradation of dye waste water obtain good decolorizing effect.Electrochemical process is by electrode reaction dyeing waste water to be purified.Micro-electrolysis method is to utilize iron-carbon filler to corrode in electrolyte solution to form the electrochemical techniques that countless small galvanic cells are handled waste water.It is that multiple physics chemical action such as a kind of current collection is separated, coagulation, electricity flocculation, absorption are in the method for wastewater treatment of one.In the dye wastewater treatment using process, dye molecule is adsorbed to carbon surface earlier, and oxidation or reduction reaction take place at the two poles of the earth then.Also can utilize electrode to carry out electrolysis, Jia Jin equality utilizes the over-all propertieies such as conduction, absorption, catalysis, redox and air supporting of electrode to realize absorption-electrode reaction-flocculation desorption one continuous line technology with activated carbon fiber as electrode, and percent of decolourization reaches 98%, COD
CrClearance is greater than 80%.Also have other many employing electrochemical processes to handle the report that contains azo dye wastewater simultaneously.
3. biochemical process: the azo dye wastewater biodegradability is poor, can be by improving active sludge MLSS and improving the sludge activity biochemical property or select for use high-efficiency strain to improve biochemical effect if want to adopt biochemical process to handle.Wherein seed selection and the good decolouring flora of cultivation are important development directions of biochemical process.Carry out utilizing technology such as selection by mutation, protoplastis fusion, genetically engineered abroad, set up the research of the high efficiency dye decolouring engineering bacteria that has a plurality of plasmids.Degraded has suitable effect to azoic dyestuff for studies show that in recent years, dominant bacterias such as false single-cell bacteria, sphaerotilus natans bacterium, Arthrobacter, withered grass bacterium, oxidation yeast.The problem that above the whole bag of tricks exists:
Aspect materialization, though activated carbon has the characteristics of advantages of good adsorption effect, the regeneration of activated carbon difficulty, the cost height is restricted its application.The sorbent material that many enterprises turn to other low prices, material to be easy to get respectively.Though electrolytic process, oxidation style produce effect in the colourity of removing waste water from dyestuff, often the COD removal is unsatisfactory, and the cost of handling medicament is higher relatively, and many novel oxidation means also are in the not industrialization of experimental study stage.
Biochemical aspect, azoic dyestuff is typical fine chemical product, has short run, the characteristics of many kinds, its complex structure, Production Flow Chart is long, expect that from former finished product often is attended by unit operations such as nitrated, condensation, reduction, oxidation, diazotization, coupling, by-product should be many, and product yield is low, the wastewater through organic matter complicated component, the DYE PRODUCTION chemical reaction process with separate, make with extra care, process operations such as washing all is to be solvent with water, water consumption is very big.Though the biochemical process dye wastewater treatment using has the advantage of less investment, but still there is the difficult waste water from dyestuff that adapts to of microorganism, the characteristics that variation water quality is big, toxicity is big, and problems such as the processing of the biogas of sludge disposal, anaerobism section and complex management.Azo dye wastewater is handled and is adopted single treatment process often to be difficult to get a desired effect.Conventional method is with the way of each treatment process combination, exists technical process long, running cost height, defectives such as effluent characteristics instability.
The utility model content
The purpose of this utility model is to provide a kind of dye wastewater treatment device based on membrane technique, and this device can be realized the azoic dyestuff class wastewater treatment of low-cost high-efficiency energy, makes discharge water reach secondary discharge standard.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of dye wastewater treatment device based on membrane technique, and it mainly is made up of waste water from dyestuff pre-treatment part and membrane filtration separation system; Described waste water from dyestuff pre-treatment part and membrane filtration separation system are communicated with by pipeline; Described waste water from dyestuff pre-treatment partly comprises waste water basin, wastewater equalization pond, flocculation hybrid reaction jar, the settling bowl that passes through pipe connection in regular turn; Described membrane filtration separation system comprises ultrafiltration cycling element and the nanofiltration cycling element that is communicated with by pipeline.
The utility model also comprises anti-load impact system, and described anti-load impact system is communicated with the membrane filtration separation system by pipeline, and described anti-load impact system mainly is made up of oxidation adsorption bleaching unit and system's electrical control unit.
Described wastewater equalization pond is made up of two slag filter tanks, a sand filter, a mud dialyzate collecting tank, a comprehensive pond of waste water and a composite wastewater collecting tank; Bottom in described slag filter tank has the slag filtering layer by the globule size Gradient distribution; At the bottom of described sand filter sand filter blanket by the globule size Gradient distribution is arranged, make waste water through fully filtering clarification through regulating COD and PH.
Described flocculation hybrid reaction jar comprises main jar, can regulate the whipping appts and the flocculation agent preparing tank of rotating speed; The described whipping appts of regulating rotating speed is installed in main jar; Described main jar is communicated with by pipeline with the flocculation agent preparing tank.
Cone that described settling bowl is arranged for the back taper made from steel or plastics or the rectangular parallelepiped made from concrete have blow-off pipe in the settling bowl bottom.
Described ultrafiltration cycling element is the tubular type ultra-filtration equipment, and the ultra-filtration membrane in this tubular type ultra-filtration equipment is the polyvinylidene fluoride film of molecular weight cut-off 200,000.
Described nanofiltration cycling element is the rolling nanofiltration device, and the nanofiltration membrane in this rolling nanofiltration device is to hold back the polyamide membrane of sal epsom 85%.
Described oxidation adsorption tank is cone of arranging with the back taper of steel or plastic working one-tenth or the rectangular parallelepiped made from concrete.
After adopting such scheme, the utility model is made up of waste water from dyestuff pre-treatment part, membrane filtration separation system and anti-load impact system three parts, described waste water from dyestuff pre-treatment part can be decomposed sedimentation and be removed most of mud, organism and salt, the COD index is reduced to below the 2000mg/L by 4000-8000mg/L, can move steadily in the long term to guarantee film system (second section); Membrane filtration separation system (being ultrafiltration and nanofiltration part), ultrafiltration system is further removed the macromolecular colloid material, guaranteeing that nanofiltration system further removes small molecules COD material and pigment that oxidation, coagulation are difficult to remove, thereby make the waste water quality of processing reach the secondary discharge standard of national regulation.Thereby the utility model to have overcome the water treatment effect of conventional waste water from dyestuff method undesirable, discharge critical defect not up to standard, overcome again and singlely handled or the too high defective of adsorption treatment cost with film, have low-cost high-efficiency can advantage.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is a process flow sheet of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Embodiment
As shown in Figure 2, the utility model is a kind of dye wastewater treatment device based on membrane technique, and it mainly is made up of waste water from dyestuff pre-treatment part 1, membrane filtration separation system 2 and anti-load impact system 3.Described waste water from dyestuff pre-treatment part 1, membrane filtration separation system 2 and anti-load impact system 3 arrange in regular turn and are communicated with by pipeline.
Described waste water from dyestuff pre-treatment part 1 comprises waste water basin 11, wastewater equalization pond 12, flocculation hybrid reaction jar 13, the settling bowl 14 that passes through pipe connection in regular turn.Described wastewater equalization pond 12 is made up of two slag filter tanks 121, sand filter 122, mud dialyzate collecting tank 123, a comprehensive pond 124 of waste water and a composite wastewater collecting tank 125; Bottom in described slag filter tank 121 has the slag filtering layer by the globule size Gradient distribution, and every layer thickness is 12-20; At the bottom of described sand filter 122 sand filter blanket by the globule size Gradient distribution is arranged, every layer thickness is 8-15, makes waste water through regulating COD and PH through fully filtering clarification.Described flocculation hybrid reaction jar 13 comprises main jar 131, can regulate the whipping appts 132 and the flocculation agent preparing tank 133 of rotating speed; The described whipping appts 132 of regulating rotating speed is installed in main jar 131, and described main jar 131 is communicated with by pipeline with flocculation agent preparing tank 133.Cone that described settling bowl 14 is arranged for the back taper made from steel or plastics or the rectangular parallelepiped made from concrete have blow-off pipe in settling bowl 14 bottoms.
Described membrane filtration separation system 2 comprises ultrafiltration cycling element 21 and the nanofiltration cycling element 22 that is communicated with by pipeline.Described ultrafiltration cycling element 21 is made up of ultrafiltration circulation tank 211 and ultra-filtration equipment 212, and described ultra-filtration equipment 212 is the tubular type ultra-filtration equipment, and the ultra-filtration membrane in this tubular type ultra-filtration equipment is the polyvinylidene fluoride film of molecular weight cut-off 200,000.Described nanofiltration cycling element 22 is made up of nanofiltration circulation tank 221 and nanofiltration device 222, and described nanofiltration device 222 is the rolling nanofiltration device, and the nanofiltration membrane in this rolling nanofiltration device is to hold back the polyamide membrane of sal epsom 85%.
Described anti-load impact system 3 mainly is made up of oxidation adsorption bleaching unit 31 and system's electrical control unit 32.Described oxidation adsorption bleaching unit 31 is oxidation adsorption tank 31, and it is made up of oxidation pond 311, adsorption tank 312 and 313 3 ponds of storage pool, and the volume in each pond is 15M
3Oxidation adsorption tank 31 (being oxidation adsorption bleaching unit 31) is right cylinder or rectangular (pros) body, and it can be made with materials such as steel, plastics or concrete.Oxidation pond 311, adsorption tank 312 and storage pool 313 3 ponds are by pipe connection and controllable valve is installed.
As shown in Figure 1, the utility model mainly is by seven unit combination utilizations such as wastewater equalization pond 12, flocculation hybrid reaction jar 13, settling bowl 14, ultrafiltration cycling element 21, nanofiltration cycling element 22, adsorption bleaching unit 31 and system's electrical control units.Thereby form a kind of very difficult azo dye wastewater treatment unit up to standard of sewage water treatment method routinely that is particularly suitable for.
Working process of the present utility model:
Composite wastewater in the composite wastewater collecting tank 125 mixes with waste water from dyestuff through pumping into two slag filter tanks 121, and the slag filter sewage through two slag filter tanks 121 flows into the comprehensive pond 124 of waste water through pipeline.The sewage of settling bowl 14 flows into the comprehensive pond 124 of waste water after sand filter 122 sand filtrations, and go into the comprehensive pond 124 of waste water through 123 overflows of mud dialyzate collecting tank, mix in the comprehensive pond 124 of waste water COD is controlled within the 5000-8000mg/L scope and (replenish clear water in case of necessity) with strictness.Pump into 2M then
3Flocculation mixing tank 131, flocculation mixing tank 131 has the whipping appts 132 and the 05M that can regulate rotating speed
3Flocculation agent Preparation tank 133, the flocculation mixing tank 131 through well-mixed waste water through being pumped into 15-20M
3Flocculating settling pond 14.Settling bowl 14 is swash plate (pipe) settling bowl.The supernatant liquor of handling through settling bowl 14 flows into 10M
3Ultrafiltration circulation tank 211, and strictness is controlled at COD within the 2000mg/L scope.Flocculating settling water in the ultrafiltration circulation tank 211 is pumped into 5M
3/ H ultra-filtration equipment 212 carries out uf processing, and dialyzate is sent into nanofiltration circulation tank 221, and concentrated solution passes back into settling bowl 14 or ultrafiltration circulation tank 211 through pipeline.Dialyzate in the nanofiltration circulation tank 221 is pumped into 3.5M
3/ H nanofiltration device 222 is carried out the nanofiltration processing, and the dialyzate of handling through nanofiltration pumps into oxidation adsorption tank 31 or CIP jar 41.When the dialyzate of waste water from dyestuff after nanofiltration is handled pumps in the oxidation adsorption tank 31,, then can handle directly discharging without oxidation and charcoal absorption after testing if met secondary discharge standard.If do not meet secondary discharge standard, then can in oxidation pond 311, add ClO after testing
2After handling, charcoal absorption detects the discharging of qualified back through sending into adsorption tank 312 after the oxidation and adding granulated active carbon.
Claims (8)
1, a kind of dye wastewater treatment device based on membrane technique is characterized in that: it mainly is made up of waste water from dyestuff pre-treatment part and membrane filtration separation system; Described waste water from dyestuff pre-treatment part and membrane filtration separation system are communicated with by pipeline; Described waste water from dyestuff pre-treatment partly comprises waste water basin, wastewater equalization pond, flocculation hybrid reaction jar, the settling bowl that passes through pipe connection in regular turn; Described membrane filtration separation system comprises ultrafiltration cycling element and the nanofiltration cycling element that is communicated with by pipeline.
2, the dye wastewater treatment device based on membrane technique according to claim 1, it is characterized in that: it also comprises anti-load impact system, described anti-load impact system is communicated with the membrane filtration separation system by pipeline, and described anti-load impact system mainly is made up of oxidation adsorption bleaching unit and system's electrical control unit.
3, the dye wastewater treatment device based on membrane technique according to claim 1 is characterized in that: described wastewater equalization pond is made up of two slag filter tanks, a sand filter, a mud dialyzate collecting tank, a comprehensive pond of waste water and a composite wastewater collecting tank; Bottom in described slag filter tank has the slag filtering layer by the globule size Gradient distribution; At the bottom of described sand filter sand filter blanket by the globule size Gradient distribution is arranged, make waste water through fully filtering clarification through regulating COD and PH.
4, the dye wastewater treatment device based on membrane technique according to claim 1 is characterized in that: described flocculation hybrid reaction jar comprises main jar, can regulate the whipping appts and the flocculation agent preparing tank of rotating speed; The described whipping appts of regulating rotating speed is installed in main jar; Described main jar is communicated with by pipeline with the flocculation agent preparing tank.
5, the dye wastewater treatment device based on membrane technique according to claim 1 is characterized in that: cone that described settling bowl is arranged for the back taper made from steel or plastics or the rectangular parallelepiped made from concrete have blow-off pipe in the settling bowl bottom.
6, the dye wastewater treatment device based on membrane technique according to claim 1, it is characterized in that: described ultrafiltration cycling element is the tubular type ultra-filtration equipment, the ultra-filtration membrane in this tubular type ultra-filtration equipment is the polyvinylidene fluoride film of molecular weight cut-off 200,000.
7, the dye wastewater treatment device based on membrane technique according to claim 1, it is characterized in that: described nanofiltration cycling element is the rolling nanofiltration device, the nanofiltration membrane in this rolling nanofiltration device is to hold back the polyamide membrane of sal epsom 85%.
8, the dye wastewater treatment device based on membrane technique according to claim 1 is characterized in that: described oxidation adsorption tank is cone of arranging with the back taper of steel or plastic working one-tenth or the rectangular parallelepiped made from concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200520053838 CN2763262Y (en) | 2005-01-13 | 2005-01-13 | Equipment for treating wastew ater from dys processing by using membrane-tech. |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200520053838 CN2763262Y (en) | 2005-01-13 | 2005-01-13 | Equipment for treating wastew ater from dys processing by using membrane-tech. |
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| CN2763262Y true CN2763262Y (en) | 2006-03-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260009A (en) * | 2010-05-29 | 2011-11-30 | 厦门理工学院 | Method for processing dye wastewater |
| CN103910448A (en) * | 2014-03-24 | 2014-07-09 | 上海世渊环保科技有限公司 | Treatment method and treatment system of dye salting-out waste water |
| CN106007061A (en) * | 2016-06-24 | 2016-10-12 | 湖州新嘉怡丝织印花有限公司 | Treatment method for dyeing wastewater of natural dye |
| CN106045100A (en) * | 2016-05-19 | 2016-10-26 | 江苏淘镜有限公司 | Dyeing waste liquid special treatment device |
| CN107973450A (en) * | 2017-12-29 | 2018-05-01 | 安徽蓝清源环境科技有限公司 | A kind of organic wastewater treatment process |
-
2005
- 2005-01-13 CN CN 200520053838 patent/CN2763262Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260009A (en) * | 2010-05-29 | 2011-11-30 | 厦门理工学院 | Method for processing dye wastewater |
| CN102260009B (en) * | 2010-05-29 | 2013-01-30 | 厦门理工学院 | Method for processing dye wastewater |
| CN103910448A (en) * | 2014-03-24 | 2014-07-09 | 上海世渊环保科技有限公司 | Treatment method and treatment system of dye salting-out waste water |
| CN103910448B (en) * | 2014-03-24 | 2016-05-11 | 上海世渊环保科技有限公司 | A kind of processing method of dyestuff Salting-Out Waste Water and treatment system |
| CN106045100A (en) * | 2016-05-19 | 2016-10-26 | 江苏淘镜有限公司 | Dyeing waste liquid special treatment device |
| CN106007061A (en) * | 2016-06-24 | 2016-10-12 | 湖州新嘉怡丝织印花有限公司 | Treatment method for dyeing wastewater of natural dye |
| CN107973450A (en) * | 2017-12-29 | 2018-05-01 | 安徽蓝清源环境科技有限公司 | A kind of organic wastewater treatment process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Expiration termination date: 20150113 Granted publication date: 20060308 |