CN205368075U - Technological system of printing and dyeing wastewater processing and retrieval and utilization - Google Patents
Technological system of printing and dyeing wastewater processing and retrieval and utilization Download PDFInfo
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- CN205368075U CN205368075U CN201620167498.5U CN201620167498U CN205368075U CN 205368075 U CN205368075 U CN 205368075U CN 201620167498 U CN201620167498 U CN 201620167498U CN 205368075 U CN205368075 U CN 205368075U
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Abstract
The utility model discloses a technological system of printing and dyeing wastewater processing and retrieval and utilization, including pretreatment systems, oxidation ditch, degree of depth processing system. Pretreatment systems includes the sump pit, just sinks pond, equalizing basin, the sump pit with the pond intercommunication just sinks, just sink pond and equalizing basin intercommunication, equalizing basin and oxidation ditch intercommunication, the oxidation ditch sinks the ponds intercommunication with two, two sink ponds respectively with just sink the pond with thoughtlessly with fixed attention reaction settling pond communicate, reaction settling pond and sludge tihckener intercommunication thoughtlessly congeal. Degree of depth processing system and thoughtlessly congeal the reaction settling pond intercommunication is including bological aerated filter, smelly oxygen contact pond, filtering ponds. The utility model has the advantages of it is thorough to waste water treatment, economical rationality, operation stability, the energy consumption is lower, easy operation, through each processing unit's integration, exert its respective processing advantage and function, provide one set of reliable economic solution for printing and dyeing wastewater's processing and retrieval and utilization.
Description
Technical field
This utility model relates to environmental technology field, in particular to the technological system of a kind for the treatment of of dyeing wastewater and reuse.
Background technology
Dyeing is typical highly water intensive industry, need to consume the technique softening water of nearly hundred million tons every year.Dyeing waste water source and pollutant component are sufficiently complex, there is the features such as change of water quality is big, content of organics is high, colourity high (being mainly colored dyes), directly human health and living environment are brought high risks by discharge, cause the waste of water resource simultaneously.Along with country with society's pay attention to day by day to environmental protection requirement and the requirement to sustainable development, traditional processing method has been increasingly difficult to the requirement with satisfied production and environmental protection.
Dyeing waste water mainly contains dyestuff, slip, dyeing assistant and fiber impurity, oil preparation, acid, alkali and inorganic salt etc., complicated component and discharge capacity are big, colourity is high, basicity big, PH is higher, and bio-refractory thing is many and changes more, is acknowledged as and is most difficult to one of main harmful waste water of administering.Four operations of dyeing and printing process will discharge waste water, pretreatment stage (include singing, desizing, boiling-off, bleaching, the operation such as mercerising) to discharge desized wastewater, boiled-off waste water, bleaching effluent and mercerizing waste water, dyeing process discharges dyeing waste-water, revenue stamp process discharges printing waste water and soap lye waste water, and arranging process then discharges arrangement waste water.Dyeing waste water is the composite waste of above all kinds of waste water, or the comprehensive wastewater except bleaching effluent.
The water quality of dyeing waste water is different with the difference of the kinds of fibers adopted and processing technique, and contaminant component is widely different.General dyeing waste water pH value is 6～10, CODCrIt is 1400～2000mg/L, BOD5Be 500～800mg/L, SS being 300～500mg/L, colourity is 400～2000 times.
Utility model content
This utility model is solved the technical problem that: along with country with society's pay attention to day by day to environmental protection requirement and the requirement to sustainable development, traditional treatment method of printing and dying wastewater has been increasingly difficult to the requirement with satisfied production and environmental protection.
For solving above-mentioned technical problem, this utility model provides following technical scheme:
The technological system of a kind for the treatment of of dyeing wastewater and reuse, including pretreatment system, oxidation ditch, advanced treatment system；
Described pretreatment system includes sump, preliminary sedimentation tank, regulating reservoir；Described sump connects with preliminary sedimentation tank, and preliminary sedimentation tank connects with regulating reservoir, and regulating reservoir connects with oxidation ditch, and oxidation ditch connects with second pond, and second pond connects with preliminary sedimentation tank and coagulating sedimentation tank respectively；Coagulating sedimentation tank connects with sludge concentration tank；Described preliminary sedimentation tank be arranged over the first medicine box, the bottom of the first medicine box is offered first and is fallen medicine mouth, is loaded with copperas solution in the first medicine box；
Described advanced treatment system includes the filtering ponds that the ozone contact tank that BAF connects connects with ozone contact tank with BAF；Described BAF connects with coagulating sedimentation tank；Described BAF, ozone contact tank, filtering ponds all connect with sludge concentration tank；Described filtering ponds be arranged over the second medicine box, the bottom of the second medicine box is offered second and is fallen medicine mouth, is loaded with filtrate in the second medicine box.
By technique scheme, the operation principle of the technological system of a kind for the treatment of of dyeing wastewater described in the utility model and reuse is as follows:
First, dyeing synthetic wastewater enters sump, then preliminary sedimentation tank is flowed into, copperas solution is added in the reaction zone of preliminary sedimentation tank, copperas solution is made to mix homogeneously with waste water by current, ferrous sulfate also has good decolorizing effect, removes the solid particulate matter in water and fibrous material, and make it precipitate in coagulation process.The COD of preliminary sedimentation tank water outlet can reach 1800mg/L.
Second, preliminary sedimentation tank water outlet flows into regulating reservoir naturally, carries out the adjustment of water quantity and quality at regulating reservoir, obtains pre-acidified simultaneously and processes, to reduce the load of oxidation ditch.
3rd, waste water flows into oxidation ditch after regulating reservoir and carries out Aerobic biological process.
4th, the mud mixture of oxidation ditch then naturally flows into second pond and carries out mud-water separation.
5th, the water outlet of second pond enters coagulating sedimentation tank, medicament is added in the reaction zone of coagulative precipitation tank, the difficult deposit in water is made to condense together mutually by the effect of medicament, forming colloid, be then combined together to form bigger floccule body with the impurity in waste water, the floccule body of formation has powerful absorption affinity, float can not only be adsorbed, moreover it is possible to absorbed portion antibacterial and dissolved matter.Coagulating sedimentation tank has the advantages such as low, effective, the mud easily precipitation of dosage.The water outlet COD of coagulating sedimentation tank can reach below 120mg/L.Mud major part in second pond is back to oxidation ditch, and a small amount of is then back to preliminary sedimentation tank, removes the particulate matter of the colloid of difficult degradation in waste water, and the mud of coagulating sedimentation tank enters sludge concentration tank.
6th, waste water penetration depth after coagulating sedimentation tank processes processes system, what initially enter is BAF, remove float total particle and the micropollutants of bio-chemical effluent, ammonia nitrogen carries out nitrated and denitrogenation, and effluent of aeration biological filter enters ozone contact tank and removes COD and colourity in waste water by the strong oxidizing property of ozone, and ozone contact tank water outlet enters filtering ponds, filtering ponds add filtrate, the pollutant of the float total particle of filtering ozone contact chamber water outlet and absorption difficult for biological degradation.Waste water COD after advanced treatment system processes is reduced to below 50mg/L from 150mg/L, and ammonia nitrogen reaches below 5mg/L, reaches the instructions for use of recycle-water.
7th, the mud that advanced treatment system produces all enters sludge concentration tank, and then filter pressing processes.
Under the situation that current water resource is day by day deficient, process and reuse technology for waste water increasingly come into one's own, especially for dyeing waste water, owing to its water yield is big, process after the costly feature of reuse, many medium-and-large-sized printing and dyeing enterprises are owned by treatment of dyeing wastewater and the reclaiming system of the whole series, recycle-water can be used for the pretreatment stage in dyeing and printing process, and what be greatly reduced enterprise uses water cost.Greatly develop printing-dying wastewater recycling cause, limited water resource can not only be saved, alleviate the short water supply contradiction that enterprise highlights increasingly, and the discharge of sewage can be reduced.
The technological system of a kind for the treatment of of dyeing wastewater described in the utility model and reuse has wastewater treatment thorough, economical rationality, stable, energy consumption is relatively low, simple operation and other advantages, by the integration of each processing unit, play its respective process advantage and function, provide the solution of a set of reliable and economic for the process of dyeing waste water and reuse.
As this utility model, a kind of of pretreatment system being illustrated, the porch of described sump is provided with grid.The dyeing waste water collection by collection conduit, flows into sump through grid, and grid can remove the bigger float of cloth waste sheet equal-volume and fur class material, reduces the load of subsequent processing units, and plays the effects such as protection water pump, pipeline, instrument.
As this utility model a kind of explanation to pretreatment system, for some reaction, as anaerobic reaction is comparatively sensitive to water quality, the water yield and impact load, so for the regulating reservoir of industrial wastewater appropriate size, it is the guarantee of anaerobic reaction stable operation to the adjustment of water quality, the water yield.The effect of regulating reservoir is homogenizing and all measures, general it is also possible to consider have the functions such as precipitation, mixing, dosing, neutralization and pre-acidified concurrently.
As this utility model, a kind of of oxidation ditch being illustrated, described oxidation ditch adopts anaerobic-anoxic-oxic biological denitrification phosphorous removal technique.Three regions, respectively anaerobic zones, anoxic zone and aerobic zone is had in oxidation ditch.Mainly discharging phosphorus in anaerobic zone, make the concentration of phosphor in sewage increase, solvent type Organic substance is absorbed by the micro-organisms, thus the BOD concentration reduced in waste water, ammonia nitrogen as self synthesis of microorganism and a part of by absorbing.In anoxic zone, denitrifying bacterium utilizes Organic substance to carry out Denitrification as carbon source, and the nitrate nitrogen in waste water and nitrite nitrogen are reduced into nitrogen, plays the effect of denitrogenation, is also degraded a part at this region Organic substance.In aerobic zone, Organic substance is then by substantial amounts of degraded, and organic concentration declines substantially, in pond, organic nitrogen is first by ammonification, then nitrated by nitrifier and nitrococcus institute or nitrous is melted into the combination of nitrate nitrogen and nitrite nitrogen, aerobic zone and anoxic zone, reaches to play the effect of denitrogenation.And in dephosphorization, the phosphorus being released in anaerobic zone, to be absorbed by aerobic polyP bacteria, concentration is decreased obviously, so the effect of dephosphorization is played in the combination of aerobic zone and anaerobic zone.A2The denitrogenation dephosphorizing efficiency of/O formula (anaerobic-anoxic-oxic biological denitrification phosphorous removal technique) oxidation ditch can reach more than 90%.Utilize A2/ O formula oxidation ditch can reach denitrogenation dephosphorizing, the effect of degradation of organic substances, in simultaneous oxidation ditch, flow velocity is up to more than 0.3m/s, and has the vast scale in ditch from backflow, make the water inlet of oxidation ditch be sufficiently mixed with the mixed liquor in ditch, it is possible to quick adsorption, dilution water inlet end organic substance.A2The mud production rate of/O formula oxidation ditch is very low, and sludge volume is little, decreases Treatment of Sludge cost, has removal efficiency height, runs the advantages such as simple.Wherein, described solvent type Organic substance is the Organic substance that can dissolve solid, liquid or gaseous solute.Described BOD (BiochemicalOxygenDemand writes a Chinese character in simplified form) is Biochemical oxygen demand or bod (referring generally to biochemical oxygen demand on the five), represents an aggregative indicator of the aerobic pollution matter content such as Organic substance in water.
As this utility model a kind of explanation to second pond, described second pond, i.e. secondary sedimentation tank (secondarysettlingtank), second pond is the important component part of activated Sludge System, its effect mainly makes mud separate, and makes mixed liquor clarification, concentration and returnedactivatedsludge.Its working effect can directly affect effluent quality and the returned sludge concentration of activated Sludge System.
As this utility model a kind of explanation to coagulating sedimentation tank, described coagulative precipitation tank is the one of sedimentation tank in wastewater treatment, coagulation process is most basic in water for industrial use and sanitary sewage disposal is also particularly important processing procedure, by adding some medicaments (being commonly referred to coagulant and flocculation aid) in water, making the granule being difficult in water precipitate can be polymerized mutually and form colloid, then the impurity in water body is combined and forms bigger floccule body.Floccule body has powerful absorption affinity, can not only adsorb float, moreover it is possible to absorbed portion antibacterial and dissolved matter.Floccule body is by adsorbing, and volume increases and sinks.Described coagulating sedimentation tank be arranged over the 3rd medicine box, the bottom of the 3rd medicine box is offered the 3rd and is fallen medicine mouth, is loaded with Polyferric Sulfate and high molecular weight water soluble polymer in the 3rd medicine box.The medicament such as Polyferric Sulfate and PAM is added in the reaction zone of coagulative precipitation tank, the difficult deposit in water is made to condense together mutually by the effect of medicament, form colloid, then it is combined together to form bigger floccule body with the impurity in waste water, the floccule body formed has powerful absorption affinity, float can not only be adsorbed, moreover it is possible to absorbed portion antibacterial and dissolved matter.Wherein, PAM is high molecular weight water soluble polymer, insoluble in most of organic solvents, has good flocculability, it is possible to reduces the frictional resistance between liquid, divides by ion characteristic and can be divided into nonionic, anion, cation and four kinds of types of amphoteric.Sedimentation tank adopts the mode of sloping plate deposition, is conducive to the sedimentation of floccule body.
As this utility model a kind of explanation to advanced treatment system, described BAF is called for short BAF, it it is a kind of New biological membrane method sewage treatment process grown up America and Europe the end of the eighties, large development is obtained the beginning of the nineties, maximum-norm reaches hundreds of thousands tpd, and develop into can denitrogenation dephosphorizing.Described ozone contact tank (ozonationcontactreactor), also known as chlorination contact tank, refer to make ozone gas be diffused into process in water and so as to water comprehensive engagement and complete the process structures reacted.Contact chamber is mainly by the antibacterial disinfection in sanitary wastewater.Mainly utilize the hypochlorite in disinfectant that the antibacterial in waste water and pathogen are carried out strong oxidation, be used for large and medium-sized waste water treatment plant.
As this utility model a kind of explanation to advanced treatment system, BAF be arranged over the 4th medicine box, the bottom of the 4th medicine box is offered the 4th and is fallen medicine mouth, is loaded with spherical porous filtrate in the 4th medicine box.Owing to having added spherical porous filtrate in BAF, microorganism is attached to filter material surface, carries out aeration so that the Organic substance of waste water obtains aerobic degradation at the bottom of pond simultaneously.Owing to the specific surface area of filtrate is big, serve again the effect filtered with biological adsorption simultaneously.One BAF can simultaneously work as general type Aeration tank, the two heavy effects with sand filter, and then waste water is finally purified.The method of operation of described BAF adopts up flow type, makes gas and water carry out uniform admirably, it is therefore prevented that bubble, in the condensation of filter, makes oxygen utilization rate higher；Compared with down-flow filter, up flow type runs sustainable offer positive pressure on the height of whole filter tank, it is possible to avoid channel or short stream better.
As this utility model, a kind of of advanced treatment system being illustrated, the filtrate in the second medicine box above filtering ponds is haydite.Filtering ponds add haydite as filtrate, antibacterial that ozone kills or algae, filter at filtering ponds, make wastewater treatment cope with the change of water quality of particular time, improve the impact resistance of system.
As this utility model, a kind of of sludge concentration tank being illustrated, sludge concentration tank adopts gravity or By Bubble-floating Method to reduce sludge moisture content, makes the process of sludge thickening.Reduce the water content of the mud that water treatment building is discharged, to reduce a kind of method for sludge treatment of its volume.Suitable in the mud that moisture content is higher.Such as activated sludge, its moisture content is up to about 99%.When moisture percentage in sewage sludge is down to 96% by 99%, the volume of mud can narrow down to original 1/4.In order to mud effectively, process further economically, must first concentrate.Moisture percentage in sewage sludge after concentration is generally 95～97%.The sludge water discharged in sludge condensation contains large amount of organic matter, is generally mixed into raw sewage and processes together；Can not directly discharge, in order to avoid contaminated environment.
As this utility model, connection pretreatment system, oxidation ditch, a kind of of advanced treatment system pipeline being illustrated, the pipeline of connected set well and preliminary sedimentation tank is provided with the first elevator pump；The pipeline of connection regulating reservoir and oxidation ditch is provided with the second elevator pump.The waste water collecting sump is delivered to preliminary sedimentation tank by the first elevator pump, and the waste water in regulating reservoir is promoted to oxidation ditch by the second elevator pump.
This utility model adopts pretreatment A2/ O oxidation ditch further treatment technique, removes the Organic substance in waste water, makes waste water reach the one-level emission standard A in " urban wastewater treatment firm pollutant emission standard " (GB18918-2002), and reach enterprise's recycle-water requirement.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this utility model is described further:
Fig. 1 is the process chart of the technological system of a kind for the treatment of of dyeing wastewater of this utility model and reuse.
Symbol description in figure:
11, sump；12, preliminary sedimentation tank；13, regulating reservoir；
20, oxidation ditch；
30, second pond；
40, coagulating sedimentation tank；
50, sludge concentration tank；
61, BAF；62, ozone contact tank；63, filtering ponds；
70, sludge filter press.
Detailed description of the invention
Such as Fig. 1, the technological system of a kind for the treatment of of dyeing wastewater and reuse, including pretreatment system, oxidation ditch, advanced treatment system.
Described pretreatment system includes sump 11, preliminary sedimentation tank 12, regulating reservoir 13；Described sump connects with preliminary sedimentation tank, and preliminary sedimentation tank connects with regulating reservoir, and regulating reservoir connects with oxidation ditch 20, and oxidation ditch connects with second pond 30, and second pond connects with preliminary sedimentation tank and coagulating sedimentation tank 40 respectively；Coagulating sedimentation tank connects with sludge concentration tank 50；Described preliminary sedimentation tank be arranged over the first medicine box, the bottom of the first medicine box is offered first and is fallen medicine mouth, is loaded with copperas solution in the first medicine box.Wherein, the porch of described sump 11 is provided with grid.
Described oxidation ditch 20 adopts anaerobic-anoxic-oxic biological denitrification phosphorous removal technique.
Described advanced treatment system includes the filtering ponds 63 that the ozone contact tank 62 that BAF 61 connects connects with ozone contact tank with BAF；Described BAF connects with coagulating sedimentation tank；Described BAF, ozone contact tank, filtering ponds all connect with sludge concentration tank；Described filtering ponds be arranged over the second medicine box, the bottom of the second medicine box is offered second and is fallen medicine mouth, is loaded with haydite in the second medicine box.Wherein, described BAF 61 be arranged over the 4th medicine box, the bottom of the 4th medicine box is offered the 4th and is fallen medicine mouth, is loaded with spherical porous filtrate in the 4th medicine box；The method of operation of BAF 61 adopts up flow type.
Described coagulating sedimentation tank 40 be arranged over the 3rd medicine box, the bottom of the 3rd medicine box is offered the 3rd and is fallen medicine mouth, is loaded with Polyferric Sulfate and high molecular weight water soluble polymer in the 3rd medicine box.Coagulating sedimentation tank 40 adopts the mode of sloping plate deposition.
In practical operation, the workflow of the technological system of a kind for the treatment of of dyeing wastewater described in the utility model and reuse is as follows:
First, COD (COD chemicaloxygendemand；Chemical oxygen consumption (COC)) for the collection by collection conduit of the dyeing waste water of 2000mg/l; sump 11 is flowed into through grid; remove the bigger float of cloth waste sheet equal-volume and fur class material at grid, reduce the load of subsequent processing units, and play the effects such as protection water pump, pipeline, instrument.
Second, the waste water collecting sump 11 is delivered to preliminary sedimentation tank 12 by the first elevator pump, copperas solution is added in the reaction zone of preliminary sedimentation tank, medicament is made to mix homogeneously with waste water by current, ferrous sulfate also has good decolorizing effect, removes the solid particulate matter in water and fibrous material in coagulation process.Preliminary sedimentation tank water outlet COD can reach 1800mg/L.
3rd, then waste water flows into regulating reservoir 13, regulates water quality and the water yield of waste water in regulating reservoir, simultaneously pre-acidified waste water, reduces A2The load of/O formula oxidation ditch 20.
4th, the waste water in regulating reservoir 13 is promoted to A by the second elevator pump2/ O formula oxidation ditch 20, carries out biodegradation at this.Three regions, respectively anaerobic zones, anoxic zone and aerobic zone is had in oxidation ditch.Mainly discharging phosphorus in anaerobic zone, make the concentration of phosphor in sewage increase, solvent type Organic substance is absorbed by the micro-organisms, thus the BOD concentration reduced in waste water, ammonia nitrogen as self synthesis of microorganism and a part of by absorbing.In anoxic zone, denitrifying bacterium utilizes Organic substance to carry out Denitrification as carbon source, and the nitrate nitrogen in waste water and nitrite nitrogen are reduced into nitrogen, plays the effect of denitrogenation, is also degraded a part at this region Organic substance.In aerobic zone, Organic substance is then by substantial amounts of degraded, and organic concentration declines substantially, in pond, organic nitrogen is first by ammonification, then nitrated by nitrifier and nitrococcus institute or nitrous is melted into the combination of nitrate nitrogen and nitrite nitrogen, aerobic zone and anoxic zone, reaches to play the effect of denitrogenation.And in dephosphorization, the phosphorus being released in anaerobic zone, to be absorbed by aerobic polyP bacteria, concentration is decreased obviously, so the effect of dephosphorization is played in the combination of aerobic zone and anaerobic zone.The denitrogenation dephosphorizing efficiency of A2/O formula oxidation ditch can reach more than 90%.Utilize A2/ O formula oxidation ditch can reach denitrogenation dephosphorizing, the effect of degradation of organic substances, in simultaneous oxidation ditch, flow velocity is up to more than 0.3m/s, and has the vast scale in ditch from backflow, make the water inlet of oxidation ditch be sufficiently mixed with the mixed liquor in ditch, it is possible to quick adsorption, dilution water inlet end organic substance.A2The mud production rate of/O formula oxidation ditch is very low, and sludge volume is little, decreases Treatment of Sludge cost, has removal efficiency height, runs the advantages such as simple.
5th, A2The mud mixture of/O formula oxidation ditch 20 flows into second pond 30 and carries out mud-water separation, and major part sludge reflux is to oxidation ditch, and a small amount of is then back to preliminary sedimentation tank.Through A2Waste water COD after/O formula oxidation ditch and second pond process reaches the clearance of below 150mg/L, COD more than 92%.
6th, the water outlet of second pond 30 enters coagulating sedimentation tank 40, the medicament such as Polyferric Sulfate and PAM is added in the reaction zone of coagulative precipitation tank 40, the difficult deposit in water is made to condense together mutually by the effect of medicament, forming colloid, be then combined together to form bigger floccule body with the impurity in waste water, the floccule body of formation has powerful absorption affinity, float can not only be adsorbed, moreover it is possible to absorbed portion antibacterial and dissolved matter.Sedimentation tank adopts the mode of sloping plate deposition, is conducive to the sedimentation of floccule body.Coagulating sedimentation tank 40 has the advantages such as low, effective, the mud easily precipitation of dosage.The water outlet COD of coagulating sedimentation tank 40 can reach below 120mg/L.
7th, coagulating sedimentation tank 40 water outlet penetration depth processes system, i.e. BAF ozone contact tank filtering ponds.Waste water carries out biofiltration, biological adsorption, biological oxidation process at BAF.Owing to having added spherical porous filtrate in BAF, microorganism is attached to filter material surface, carries out aeration so that the Organic substance of waste water obtains aerobic degradation at the bottom of pond simultaneously.Owing to the specific surface area of filtrate is big, serve again the effect filtered with biological adsorption simultaneously.One BAF can simultaneously work as general type Aeration tank, the two heavy effects with sand filter, and then waste water is finally purified.BAF adopts up flow type to run, and makes gas and water carry out uniform admirably, it is therefore prevented that bubble, in the condensation of filter, makes oxygen utilization rate higher；Compared with down-flow filter, up flow type runs sustainable offer positive pressure on the height of whole filter tank, it is possible to avoid channel or short stream better；BAF organics removal, ammonia nitrogen carry out nitrated and denitrogenation, and detergent power is strong, and floor space is little, and anti impulsion load ability is strong, and advantage is notable, only need less pond to hold and take up an area；Because having oxidation and filtration concurrently, can guarantee that good effluent quality；Because flow process is short, Chi Rong little, occupation of land economize, capital cost can be relatively low；Strong shock resistance, without sludge bulking problem, operational effect is stable；After out of service for a long time, restarting very fast, microbial biomass accumulation is very fast, and facility can recover properly functioning in a short time.Aeration and biological filtrate enters ozone contact tank, adopts ozonization, pre-oxidation, it is possible to remove the colourity of waste water, improves effluent quality, is conducive to the sterilization of recirculated cooling water, except algae, scale removal.Ozone contact tank water outlet enters filtering ponds, adds haydite as filtrate in filtering ponds, antibacterial that ozone kills or algae, filters at filtering ponds, makes wastewater treatment cope with the change of water quality of particular time, improve the impact resistance of system.At waste water after entire depth processing links, COD is reduced to below 50mg/L from 150mg/L, and ammonia nitrogen reaches below 5mg/L.
8th, the mud that advanced treatment system produces all enters sludge concentration tank 50, and then filter pressing (utilizes a kind of special filter medium, object applied certain pressure so that liquid dialysis a kind of technique out；This technique makes the solids extract in mixed liquor out, it is achieved the effect that solid, liquid separates), filter pressing adopts pressure filter 70 to process.
Above content is only better embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this specification content should not be construed as restriction of the present utility model.
Claims (9)
1. a technological system for treatment of dyeing wastewater and reuse, including pretreatment system, oxidation ditch, advanced treatment system；It is characterized in that:
Described pretreatment system includes sump (11), preliminary sedimentation tank (12), regulating reservoir (13)；Described sump connects with preliminary sedimentation tank, and preliminary sedimentation tank connects with regulating reservoir, and regulating reservoir connects with oxidation ditch (20), and oxidation ditch connects with second pond (30), and second pond connects with preliminary sedimentation tank and coagulating sedimentation tank (40) respectively；Coagulating sedimentation tank connects with sludge concentration tank (50)；Described preliminary sedimentation tank be arranged over the first medicine box, the bottom of the first medicine box is offered first and is fallen medicine mouth, is loaded with copperas solution in the first medicine box；
Described advanced treatment system includes the filtering ponds (63) that the ozone contact tank (62) that BAF (61) connects connects with ozone contact tank with BAF；Described BAF connects with coagulating sedimentation tank；Described BAF, ozone contact tank, filtering ponds all connect with sludge concentration tank；Described filtering ponds be arranged over the second medicine box, the bottom of the second medicine box is offered second and is fallen medicine mouth, is loaded with filtrate in the second medicine box.
2. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: the porch of described sump (11) is provided with grid.
3. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: described oxidation ditch (20) adopts anaerobic-anoxic-oxic biological denitrification phosphorous removal technique.
4. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterized in that: described coagulating sedimentation tank (40) be arranged over the 3rd medicine box, the bottom of the 3rd medicine box is offered the 3rd and is fallen medicine mouth, is loaded with Polyferric Sulfate and high molecular weight water soluble polymer in the 3rd medicine box.
5. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: described coagulating sedimentation tank (40) adopts the mode of sloping plate deposition.
6. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterized in that: described BAF (61) be arranged over the 4th medicine box, the bottom of the 4th medicine box is offered the 4th and is fallen medicine mouth, is loaded with spherical porous filtrate in the 4th medicine box.
7. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: the method for operation of described BAF (61) adopts up flow type.
8. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: the filtrate in described second medicine box is haydite.
9. the technological system of a kind for the treatment of of dyeing wastewater as claimed in claim 1 and reuse, it is characterised in that: the pipeline of connected set well (11) and preliminary sedimentation tank (12) is provided with the first elevator pump；The pipeline of connection regulating reservoir (13) and oxidation ditch (20) is provided with the second elevator pump.
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| CN201620167498.5U CN205368075U (en) | 2016-03-04 | 2016-03-04 | Technological system of printing and dyeing wastewater processing and retrieval and utilization |
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| CN201620167498.5U CN205368075U (en) | 2016-03-04 | 2016-03-04 | Technological system of printing and dyeing wastewater processing and retrieval and utilization |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668929A (en) * | 2016-03-04 | 2016-06-15 | 苏州苏沃特环境科技有限公司 | Dyeing wastewater treatment and recycling technical system |
| CN108545885A (en) * | 2018-04-11 | 2018-09-18 | 东华大学 | A kind of cylinder yarn dyeing waste water dual treatment and the integrated technique of reuse |
| CN110498560A (en) * | 2019-07-23 | 2019-11-26 | 广东莞绿环保工程有限公司 | A kind of textile printing and dyeing wastewater processing method |
-
2016
- 2016-03-04 CN CN201620167498.5U patent/CN205368075U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668929A (en) * | 2016-03-04 | 2016-06-15 | 苏州苏沃特环境科技有限公司 | Dyeing wastewater treatment and recycling technical system |
| CN105668929B (en) * | 2016-03-04 | 2019-03-01 | 苏州苏沃特环境科技有限公司 | A kind for the treatment of of dyeing wastewater and the technological system of reuse |
| CN108545885A (en) * | 2018-04-11 | 2018-09-18 | 东华大学 | A kind of cylinder yarn dyeing waste water dual treatment and the integrated technique of reuse |
| CN108545885B (en) * | 2018-04-11 | 2021-01-12 | 东华大学 | Quality-based treatment and recycling integrated process for cone yarn printing and dyeing wastewater |
| CN110498560A (en) * | 2019-07-23 | 2019-11-26 | 广东莞绿环保工程有限公司 | A kind of textile printing and dyeing wastewater processing method |
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