CN101948224B - Treatment system and method for wastewater in chemical spinning factory - Google Patents
Treatment system and method for wastewater in chemical spinning factory Download PDFInfo
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- CN101948224B CN101948224B CN2010105162269A CN201010516226A CN101948224B CN 101948224 B CN101948224 B CN 101948224B CN 2010105162269 A CN2010105162269 A CN 2010105162269A CN 201010516226 A CN201010516226 A CN 201010516226A CN 101948224 B CN101948224 B CN 101948224B
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Abstract
The invention relates to an industrial wastewater treatment system and a treatment method, in particular to treatment system and method for waste water in a chemical spinning factory. The invention mainly solves the technical problems that drainage is substandard and the water resource is not sufficiently utilized because of long treatment process, complex treatment technology and poor control in the traditional chemical fiber spinning treatment process. The technical scheme of the invention is that the treatment system for the wastewater in the chemical spinning factory comprises a mechanical drum sieve, a photon valence-lowering device, a biological flat membrane reactor, a ball-shaped shallow sand filter and an ultrafiltration membrane filter, wherein the devices are sequentially communicated through pipelines; delivery pumps are arranged on the pipeline leading to the ball-shaped shallow sand filter from the biological flat membrane reactor and the pipeline leading to the ultrafiltration membrane filter from the ball-shaped shallow sand filter; and the biological flat membrane reactor is connected with an air blower through an aeration tube or an aeration plate. In the system, a mechanical barrier device can further be introduced on the pipeline leading to the biological flat membrane reactor from the photon valence-lowering device so as to be used for treating domestic sewage.
Description
Technical field
The present invention relates to industrial wastewater treatment system and treatment process, particularly change spinning mill's Waste Water Treatment and treatment process.
Background technology
In the terylene textile mills production process, can produce a large amount of waste water.Wastewater source spin before mainly being waste water with after spin waste water; Simultaneously factory also can produce the sewage of some amount, wherein before spin waste water and after to spin waste water major pollution thing be that emulsified fat (SULPHOSUCCINIC ACID ESTER first salt, lipid acid, polyoxyl 40 stearate), tinting material, tensio-active agent, grease (monoester, two fat) molecular weight are between 300～1200.Wherein BOD content is that 60～200PPM, COD are about 600～620PPM, pH7.The time that the pollutent of this type waste water adopts general bio-oxidation technology, price reduction difficulty, biological treatment to stop is long. and often adopt following process step to handle: front and back are spun waste water and are got into grid, equalizing tank, breakdown of emulsion, secondary source of the gas, contact-oxidation pool price reduction, settling tank, mechanical filter, Electrooxidation tower, qualified discharge successively; Wherein secondary source of the gas discharge carries out air supporting mud; Sewage directly gets into the contact-oxidation pool price reduction in addition; Get into flow then; The solids that solids that settling tank forms and air supporting mud form is cured and dewaters; Solids also can carry out acidolysis, and the part waste water of handling through Electrooxidation tower can reflux as air supporting mud water.Adopt above-mentioned treating processes draining can reach GB8978-88 first discharge standard: COD≤100mg/l, BOD≤30 mg/l, SS≤70 mg/l, pH6～9, petroleum-type≤10 mg/l.But this processing method owing to have organic oil in water emulsion, tensio-active agent in the waste water, adopts general biological oxidation process price reduction difficulty.So adopted breakdown of emulsion and air supporting process on stream, removing the COD about 70% in the waste water, and then got into bio-oxidation pond and handle long flow path, complex treatment process.If control badly, water outlet problem not up to standard takes place easily, and the discharge water after handling considers also to reuse, water resources is utilized insufficient.
Summary of the invention
The object of the present invention is to provide that a kind of treatment scheme is simple, control is convenient, stable effluent quality and reusableization spinning mill Waste Water Treatment and treatment process, solve mainly that treatment scheme length, complex treatment process, the control of existing textile of chemical fibre treatment scheme existence is bad to be prone to cause the technical problem that draining is not up to standard and water resources is underutilized.
Technical scheme of the present invention is following: a kind ofization spinning mill Waste Water Treatment; Comprise machinery drum sieve, photon price reduction device, biological flat sheet membrane reactor drum, spherical shallow-layer sand filter, ultrafiltration membrance filter device; Said apparatus is communicated with through pipeline successively; Lead on the spherical shallow-layer sand filter pipeline and spherical shallow-layer sand filter leads on the ultrafiltration membrance filter organ pipe road transferpump is housed at biological flat sheet membrane reactor drum, biological flat sheet membrane reactor drum is connected to blower fan through aeration tube or aeration board; Native system also can be made a price reduction device at photon and led to the mechanical Fencing system of access on the biological flat sheet membrane reactor pipeline, is used to handle sewage.
Before biological flat sheet membrane reactor drum, for regulating pondage and water quality also can be provided with equalizing tank.Activated charcoal filter is set behind sand filter.Behind the ultrafiltration membrance filter device, reverse osmosis membrane filt is set.
Said machinery drum sieve comprises a transverse rollers; The cylinder both sides are set up water-in and slag-drip opening separately, the circumferential liner screen cloth of cylinder, and screen-aperture is about 200-300 orders; Cylindrical shell places one to be driven on the little power wheel support roller group that the geartransmission large drive wheel drives again by motor reducer; Side at cylinder is provided with the back flushing water pipe that has row's back flushing nozzle, below cylinder, is provided with and receives water pond, receives the water pond bottom to be provided with water port.
Said photon price reduction device comprises quartz burner, and a plurality of quartz burners are arranged side by side, and the upper end connects photon emitters; The lower end is fixed on the support, props up to be placed in the ring support sliding frame of removing contamination, and is with the ring of removing contamination on each quartz burner; And with these ring series connection of removing contamination; And be fixed on the ring support of removing contamination through the ring union lever of removing contamination, the ring support both sides of removing contamination are fixed with pulley, and pulley is along the ring support sliding frame both sides lifting rail of removing contamination; A placed in-line side of removing contamination ring also connects cylinder through union lever, reversing valve of cylinder parallel connection; The said built-in elastica circle of ring of removing contamination, elastica circle aperture and quartz burner coupling.
A kind ofization spinning mill wastewater treatment method will be changed and spin water before and after the spinning mill and handle by following flow process, at first get into the machinery drum sieve, remove the solid formation of carrying under one's arms in the waste water; The waste water of having removed solid formation relies on run by gravity to go into photon price reduction device, uses ultraviolet light that the organism that contains in the waste water is realized price reduction and reduced molecular weight; Waste water after above-mentioned processing is mixed into biological flat sheet membrane reactor drum with the sewage of having been removed solids by mechanical fence, utilizes the microbiological treatment pollutent, further reduces water pollutant content and solid contents; Waste water through the biofilm reactor processing; Under the suction of pump, get into spherical shallow-layer sand filter; Remove a small amount of mechanical impurity that contains in anhydrating; Water used during the water that spherical shallow-layer sand filter is discharged can be used as, and also available pump is sent into the ultrafiltration membrance filter device except that using as recirculated water behind a small amount of soluble large molecule pollutent that contains in anhydrating.
Before biological flat sheet membrane reactor drum, for regulating pondage and water quality also can be provided with equalizing tank.If the plant effluent and the sewage water yield and water quality are than equilibrium then can not establish equalizing tank in order to simplify flow process; Adopt the method that suitably enlarges biological flat sheet membrane reactor volume to come regulating pondage and water quality; Required air is separated into micro-bubble by blower fan through aeration tube or aeration board and gets into biological flat sheet membrane reactor drum in the biological flat sheet membrane reactor drum; To improve the residence time of air in biological flat sheet membrane reactor drum and the contact surface of increase gas-liquid two-phase; Improve the utilization ratio of gas, save the energy consumption of blower fan.
In order to improve the quality of discharge water, use as the water of productive use or the pure water of factory, can behind spherical shallow-layer sand filter, activated charcoal filter be set, to remove a small amount of organism that possibly contain in anhydrating.High-pressure hydraulic pump and reverse osmosis membrane filt are set behind the ultrafiltration membrance filter device, remove the solubility small molecular weight organism and the ion that contain in anhydrating, make water outlet reach the pure water standard and supply production or other to need to use, to improve the utilization ratio of water.
The invention has the beneficial effects as follows: 1. adopt wastewater treatment process of the present invention to handle when spinning waste water and factory's sewage before and after the chemical fibre factory, draining water quality can be stablized and reaches the GB8978-88 first discharge standard.2. adopt the machinery drum sieve, can hold back in the waste water＞48-75 μ m solid formation, thereby improve the light transmission that gets into special photon price reduction treatment unit water.Help improving the efficient of this equipment, because a large amount of solid formation is trapped, alleviated the load of subsequent disposal simultaneously, help processing power energy-conservation and raising equipment.3. adopt photon price reduction treatment unit, utilize ultraviolet light, to organism scission of link and price reduction, can improve the efficient of microbial film treatment unit, treatment effect is more stable.4. adopt biological flat sheet membrane reactor drum higher, and be particularly conducive to the processing of nitrogen-containing pollutant, and the flat sheet membrane of using with flexibility can be regenerated than general bio-reactor volumetric efficiency.The stability and the work-ing life of its operation are more excellent than hollow-fibre membrane, stable effluent quality, and solid formation content is very low in the water.Saved settling bowl.And reduced the quantity discharged of mud.5. adopt spherical shallow-layer sand filter as mechanical filter, both saved pressure head and the consumption of investing and reduced the sand filter reuse water, help saving energy consumption, filtration resistance is little, recoil makes water consumption little, and simple in structure.Be convenient to by the size combinations configuration of handling the water yield.6. combination rolling ultrafiltration membrance filter device effluent quality can reach the service water standard, and the utilization ratio of water is high.7. flow process adopts modular combination, can carry out flexible combination by the requirement of water quality, the water yield and the effluent quality of waste water, satisfies different process and displacement mass requirement.
Description of drawings
Fig. 1 connects block diagram for system of the present invention.
Fig. 2 is a machinery drum sieve structure synoptic diagram of the present invention.
Fig. 3 is machinery drum sieve Drive Structure synoptic diagram of the present invention.
Fig. 4 is machinery drum sieve discharge structure synoptic diagram of the present invention.
Fig. 5 is photon price reduction treatment unit structural representation of the present invention.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 ring structure synoptic diagram of removing contamination.
Among the figure: 1-machinery drum sieve, 1-1-large drive wheel, 1-2-sieve aperture, 1-3-screen cloth, 1-4-slag-drip opening, 1-5-back flushing water pipe; 1-6-back flushing nozzle, 1-7-support roller group, the little power wheel of 1-8-, the 1-9-motor reducer, the 1-10-water-in, 1-11-receives water pond; 1-12-water port, 2-photon price reduction device, 2-1-pulley, the 2-2-ring of removing contamination, the 2-3-union lever; The 2-4-cylinder, 2-5-reversing valve, 2-6-photon emitters, the 2-7-ring support sliding frame of removing contamination, 2-8-guide rail; The 2-9-ring support of removing contamination, the 2-10-ring union lever of removing contamination, 2-11-elastica circle, 2-12-quartz burner, the biological flat sheet membrane reactor drum of 3-; The spherical shallow-layer sand filter of 4-, 5-ultrafiltration membrance filter device, 6-blower fan, 7-transferpump, 8-machinery Fencing system.
Embodiment
The waste water of handling is chemical fibre factory's waste water, BOD/COD=0.1～0.15, and renewable performance is poor.Adopt conventional coagulation and activation process, the treatment time is long, and (the bio-aeration pool residence time reaches 26 hours, and the COD of draining is about 138mg/l, and the COD clearance is merely 47%.Treating processes is with reference to Fig. 1-7; A kind ofization spinning mill Waste Water Treatment; Comprise machinery drum sieve 1, photon price reduction device 2, biological flat sheet membrane reactor drum 3, spherical shallow-layer sand filter 4, ultrafiltration membrance filter device 5; Said apparatus is communicated with through pipeline successively, leads on spherical shallow-layer sand filter 4 pipelines and spherical shallow-layer sand filter 4 leads on ultrafiltration membrance filter device 5 pipelines transferpump 7 is housed at biological flat sheet membrane reactor drum 3, and biological flat sheet membrane reactor drum 4 is connected to blower fan 6 through aeration tube or aeration board; Owing to do not relate to sanitary sewage disposal, present embodiment omits mechanical Fencing system 8.
Said machinery drum sieve 1 comprises a transverse rollers; The cylinder both sides are set up water-in 1-10 and slag-drip opening 1-4 separately, the circumferential liner screen cloth of cylinder 1-3, and sieve aperture 1-2 aperture is about 200-300 orders; Cylindrical shell places one by on the motor reducer 1-9 driving brief biography driving wheel 1-8 support roller group 1-7 that geartransmission large drive wheel 1-1 drives again; Side at cylinder is provided with the back flushing water pipe 1-5 that has row's back flushing nozzle 1-6, below cylinder, is provided with and receives water pond 1-11, receives the water pond bottom to be provided with water port 1-12.
Said photon price reduction device 2 comprises quartz burner 2-12, and a plurality of quartz burner 2-12 are arranged side by side, and the upper end connects photon emitters 2-6; The lower end is fixed on the support, props up to be placed in the ring support sliding frame 2-7 that removes contamination, and being with the ring 2-2 that removes contamination on each quartz burner; And with these ring series connection of removing contamination; And be fixed on the ring support 2-9 that removes contamination through the ring union lever 2-10 that removes contamination, the ring support both sides of removing contamination are fixed with pulley 2-1, and pulley goes up and down along the ring support sliding frame two side rails 2-8 that remove contamination; A placed in-line side of removing contamination ring also meets cylinder 2-4 through union lever 2-3, reversing valve 2-5 of cylinder 2-4 parallel connection; The said built-in elastica circle 2-11 of ring that removes contamination, elastica circle aperture and quartz burner coupling.
Biological flat sheet membrane reactor drum 3 adopts the biological flat sheet membrane reactor drum of immersion, and mikrobe is an indigenous flora.Because the high separating efficiency of film makes stable effluent quality, solids content is very low; And because the mud of biological flat sheet membrane reactor drum is long age; Can improve the breeding amount and the stability of nitrifying bacteria community slowly in the active sludge, help improving nitrated rate, improve the removal ability of nitrogenous thing.To handling the removal particularly advantageous of grease and tensio-active agent in this flow process, and the biofilm reactor floor space little, do not need settling tank, sludge quantity is few, is specially adapted to Industrial Wastewater Treatment.
Biological flat sheet membrane reactor drum can adopt German Mai Nade membrane bioreactor, and membrane flux is about 20L/m
2The biological flat sheet membrane reactor drum of h or Shandong Ente Water-Technology Co., Ltd. can adopt other supplier's like product when needing.
Ball-type shallow-layer sand filter 4 sand layer thicknesses are about 40 centimetres; Because adopt shallow layer of sand, filtration resistance is little, and special indoor design has guaranteed that again evenly reaching of current is stable, filtration efficiency is high; Backwashing time is short, efficient is high; The backwash water amount is little, and pressure head is low, has energy-conservation and advantage water-saving.Shell is the plastics ball housing, and relative price is cheap, combined and instant.
Available from Israel ARKAL company; Index: effective filtration area: 1.16m
2, physical dimension: 1.22m*1.22m,
Processing power: 50T/h, ultrafiltration membrance filter device 5 adopts rolled film;
Product specification Φ 100*533 filtering surface amasss 4.0 ㎡
Φ100*1016?7.0㎡
Φ200*1016?25.0?㎡
Material: PVDF.PAN.PS.PES
Molecular weight cut-off: 1kDa-30kDa
Extreme service presure: 0.5MPa
Maximum operation (service) temperature: 50 ℃
Use pH scope: 1-13
Production unit Beijing membrane technique ltd of clear big film section also can adopt other company's like product.
A kind ofization spinning mill wastewater treatment method will be changed and spin water before and after the spinning mill and handle by following flow process, at first get into machinery drum sieve 1, remove the solid formation of carrying under one's arms in the waste water; The waste water of having removed solid formation relies on run by gravity to go into photon price reduction device 2, uses ultraviolet light the organism that contains in the waste water to be realized price reduction and reduced molecular weight the treatment time is 2 hours; Waste water after above-mentioned processing gets into biological flat sheet membrane reactor drum 3, utilizes the microbiological treatment pollutent, further reduces water pollutant content and solid contents, and the treatment time is 6 hours; Waste water through the biofilm reactor processing; Under the suction of transferpump, get into spherical shallow-layer sand filter 4; Remove a small amount of mechanical impurity that contains in anhydrating; Water used during the water that spherical shallow-layer sand filter is discharged can be used as, and also available transferpump is sent into ultrafiltration membrance filter device 5 except that using as recirculated water behind a small amount of soluble large molecule pollutent that contains in anhydrating.
Before biological flat sheet membrane reactor drum, for regulating pondage and water quality also can be provided with equalizing tank.If the plant effluent and the sewage water yield and water quality are than equilibrium then can not establish equalizing tank in order to simplify flow process; Adopt the method that suitably enlarges biological flat sheet membrane reactor volume to come regulating pondage and water quality; Required air is separated into micro-bubble by blower fan through aeration tube or aeration board and gets into biological flat sheet membrane reactor drum in the biological flat sheet membrane reactor drum; To improve the residence time of air in biological flat sheet membrane reactor drum and the contact surface of increase gas-liquid two-phase; Improve the utilization ratio of gas, save the energy consumption of blower fan.
In order to improve the quality of discharge water, use as the water of productive use or the pure water of factory, can behind spherical shallow-layer sand filter, activated charcoal filter be set, to remove a small amount of organism that possibly contain in anhydrating.High-pressure hydraulic pump and reverse osmosis membrane filt are set behind the ultrafiltration membrance filter device, remove the solubility small molecular weight organism and the ion that contain in anhydrating, make water outlet reach the pure water standard and supply production or other to need to use, to improve the utilization ratio of water.
Waste water draining COD after treatment is 75mg/l, and the COD clearance is 71%.Treatment effect obviously is superior to conventional coagulation and bio-aeration facture, but and drainage water stably reaching standard.
Claims (10)
1. change spinning mill's Waste Water Treatment for one kind; It is characterized in that comprising machinery drum sieve, photon price reduction device, biological flat sheet membrane reactor drum, spherical shallow-layer sand filter, ultrafiltration membrance filter device; Said apparatus is communicated with through pipeline successively; Lead on the spherical shallow-layer sand filter pipeline and spherical shallow-layer sand filter leads on the ultrafiltration membrance filter organ pipe road transferpump is housed at biological flat sheet membrane reactor drum, biological flat sheet membrane reactor drum is connected to blower fan through aeration tube or aeration board.
2. according to claim 1ization spinning mill Waste Water Treatment is characterized in that native system leads to insert on the biological flat sheet membrane reactor pipeline at photon price reduction device and is used to handle sewage machinery Fencing system.
3. according to claim 1ization spinning mill Waste Water Treatment; It is characterized in that said machinery drum sieve comprises a transverse rollers, the cylinder both sides are set up water-in and slag-drip opening separately, the circumferential liner screen cloth of cylinder; Cylindrical shell places one to be driven on the little power wheel support roller group that the geartransmission large drive wheel drives again by motor reducer; Side at cylinder is provided with the back flushing water pipe that has row's back flushing nozzle, below cylinder, is provided with and receives water pond, receives the water pond bottom to be provided with water port.
4. according to claim 3ization spinning mill Waste Water Treatment, the screen-aperture that it is characterized in that said screen cloth is 200-300 orders.
5. according to claim 1ization spinning mill Waste Water Treatment is characterized in that said photon price reduction device comprises quartz burner, and a plurality of quartz burners are arranged side by side; The upper end connects photon emitters, and the lower end is fixed on the support, props up to be placed in the ring support sliding frame of removing contamination; Be with the ring of removing contamination on each quartz burner, and these rings of removing contamination are connected, and be fixed on the ring support of removing contamination through the ring union lever of removing contamination; The ring support both sides of removing contamination are fixed with pulley; Pulley is along removing contamination ring support sliding frame both sides lifting rail, and a placed in-line side of removing contamination ring also connects cylinder through union lever, reversing valve of cylinder parallel connection.
6. according to claim 5ization spinning mill Waste Water Treatment is characterized in that the said built-in elastica circle of ring of removing contamination, elastica circle aperture and quartz burner coupling.
7. according to claim 1ization spinning mill Waste Water Treatment is characterized in that before biological flat sheet membrane reactor drum, equalizing tank being set.
8. according to claim 1ization spinning mill Waste Water Treatment is characterized in that behind spherical shallow-layer sand filter, activated charcoal filter being set, and behind the ultrafiltration membrance filter device, reverse osmosis membrane filt is set.
9. change spinning mill's wastewater treatment method for one kind, it is characterized in that handling by following flow process, at first get into the machinery drum sieve, remove the solid formation of carrying under one's arms in the waste water spinning water before and after the change spinning mill; The waste water of having removed solid formation relies on run by gravity to go into photon price reduction device, uses ultraviolet light that the organism that contains in the waste water is realized price reduction and reduced molecular weight; Waste water after above-mentioned processing is mixed into biological flat sheet membrane reactor drum with the sewage of having been removed solids by mechanical fence, utilizes the microbiological treatment pollutent, further reduces water pollutant content and solid contents; Waste water through the biofilm reactor processing; Under the suction of pump, get into spherical shallow-layer sand filter; Remove a small amount of mechanical impurity that contains in anhydrating; Water uses in the water conduct that spherical shallow-layer sand filter is discharged, or with being pumped into the ultrafiltration membrance filter device except that using as recirculated water behind a small amount of soluble large molecule pollutent that contains in anhydrating.
10. according to claim 9ization spinning mill wastewater treatment method is characterized in that before biological flat sheet membrane reactor drum, for regulating pondage and water quality are provided with equalizing tank; In order to improve the quality of discharge water, water of productive use or pure water use as factory are provided with activated charcoal filter behind spherical shallow-layer sand filter; High-pressure hydraulic pump and reverse osmosis membrane filt are set behind the ultrafiltration membrance filter device, remove the solubility small molecular weight organism and the ion that contain in anhydrating, make water outlet reach the pure water standard.
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| CN103435233B (en) * | 2013-09-10 | 2015-03-18 | 北京英特环科水处理工程设备有限公司 | Equipment and method for recycling chemical fiber continuous-spinning wastewater |
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| CN101293726A (en) * | 2008-06-06 | 2008-10-29 | 南京大学 | Method for processing and separate-recycling printing and dyeing wastewater |
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| US5961829A (en) * | 1994-04-14 | 1999-10-05 | Herhof Umwelttechnik Gmbh | Method and an apparatus for the purification of water, more particularly from a composting process |
| CN101333049A (en) * | 2007-07-25 | 2008-12-31 | 北京中科国益环保工程有限公司 | Advanced treatment and reclamation method for oil-salts containing sewerage |
| CN101293726A (en) * | 2008-06-06 | 2008-10-29 | 南京大学 | Method for processing and separate-recycling printing and dyeing wastewater |
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