CN204490660U - A kind of novel dyeing waste water total system - Google Patents

A kind of novel dyeing waste water total system Download PDF

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Publication number
CN204490660U
CN204490660U CN201520164168.6U CN201520164168U CN204490660U CN 204490660 U CN204490660 U CN 204490660U CN 201520164168 U CN201520164168 U CN 201520164168U CN 204490660 U CN204490660 U CN 204490660U
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water
strainer
connects
dyeing waste
unit
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CN201520164168.6U
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王冰
张研
郑贵堃
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王冰
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Abstract

The utility model relates to a kind of novel dyeing waste water total system, and it comprises pretreatment unit, sewage enrichment unit and supercritical water oxidation unit; Pretreatment unit comprises screen apparatus and equalizing tank; Sewage enrichment unit comprises membrane filtration system and membrane concentration system, and the entrance of membrane filtration system connects the outlet of pretreatment unit, and the product water out of membrane concentration system connects clean water basin; The starting fluid system of supercritical water oxidation unit, overcritical water oxidization reactor, gas solid separation system, Separate System of Water-jet connect successively, the sewage inlet of overcritical water oxidization reactor connects the dense water out of sewage enrichment unit, the oxygen intake of overcritical water oxidization reactor connects oxygen supply system, and the outlet of Separate System of Water-jet connects clean water basin.The utility model is by film enrichment and supercritical water oxidation R. concomitans, and make wider COD value dyeing waste water carry out supercritical water oxidation process, organic removal rate is high, and effluent color dilution is up to standard, and resource, the energy of generation directly utilize or reclaims.

Description

A kind of novel dyeing waste water total system
Technical field
The utility model belongs to sewage disposal and energy resource circulation and stress field, relates to a kind of novel dyeing waste water total system.
Background technology
Dyeing is industrial wastewater discharge rich and influential family, and according to incompletely statistics, national dyeing waste water quantity discharged every day is 3 × 106 ~ 4 × 106m 3.Dyeing waste water is processing cotton, fiber crops, man-made fiber and blending product thereof is the waste water that main printing and dyeing mill discharges.The dyeing waste water water yield is comparatively large, and every dyeing and printing process 1 ton of textiles water consumption 100 ~ 200 tons, wherein 80 ~ 90% become waste water.Containing dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity, sand class material, inorganic salt etc. in waste water, textile printing and dyeing wastewater has the features such as the water yield is large, organic pollutant content is high, colourity is dark, alkalescence is large, change of water quality is large, belongs to one of unmanageable trade effluent.
In recent years due to the development of man made fiber fabric, the rise of Silk and the progress of finishing process in printing and dye-ing technology, the bio-refractory organism such as PVA slurry, artificial silk alkaline hydrolysis thing (mainly O-phthalic acids material), New-type adjuvant are made to enter dyeing waste water in a large number, its COD concentration also rises to 2000-3000mg/L by original hundreds of mg/L, thus make original Dyeing and Printing Wastewater Biological Treatment system COD clearance drop to about 50% from 70%, even lower, traditional biological treatment is subject to serious challenge; Traditional chemical precipitation and the COD clearance of By Bubble-floating Method to this kind of dyeing waste water are also only about 30%.Therefore, need to seek a kind of total system and the method that are more suitable for dyeing waste water feature.
Summary of the invention
The purpose of this utility model is to overcome existing techniques of Dyeing Wastewater Treatment Problems existing and deficiency, provide that a kind of processing efficiency is high, no pollution discharge, simple to operate, the energy and resource recycling, saving input, novel dyeing waste water total system that processing cost is lower can be realized simultaneously.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of novel dyeing waste water total system, is characterized in that: it comprises pretreatment unit, sewage enrichment unit and supercritical water oxidation unit; Described pretreatment unit comprises the screen apparatus and equalizing tank that are communicated with successively; Described sewage enrichment unit comprises the membrane filtration system and membrane concentration system that are communicated with successively, and the entrance of described membrane filtration system connects the outlet of described pretreatment unit, and the product water out of described membrane concentration system connects clean water basin;
Described supercritical water oxidation unit comprises oxygen supply system, starting fluid system, overcritical water oxidization reactor, gas solid separation system, Separate System of Water-jet, wherein, starting fluid system, overcritical water oxidization reactor, gas solid separation system, Separate System of Water-jet connect successively, the sewage inlet of described overcritical water oxidization reactor connects the dense water out of described sewage enrichment unit, the oxygen intake of overcritical water oxidization reactor connects described oxygen supply system, and the outlet of described Separate System of Water-jet connects described clean water basin.
Described membrane concentration system comprises the first strainer, the second strainer, the 3rd strainer and the 4th strainer; The dense water out of described first strainer connects the entrance of described second strainer, the dense water out of described second strainer connects the entrance of described 3rd strainer, and the dense water out of described 3rd strainer connects the sewage inlet of described overcritical water oxidization reactor; Described first strainer, the second strainer and the product water out of the 3rd strainer are all connected the entrance of described 4th strainer, the dense water out of described 4th strainer connects the entrance of described first strainer, and the product water out of described 4th strainer connects described clean water basin.
Described first strainer, second strainer, 3rd strainer and the 4th strainer are dish tubular membrane tripping device, this dish tubular membrane tripping device is by pressure casing, power supply end cap, intake end cover, flow guiding disc, disc-type film bag, battery lead plate and center pull rod are formed, power supply end cap, multiple flow guiding disc and intake end cover stack successively, and adopt center pull rod to install fixing in the middle, pressure casing sealing is installed in outside power supply end cap and intake end cover, former aquaporin is formed between flow guiding disc periphery and pressure casing, notch is shaped with in the middle part of flow guiding disc, to form filtration channel, formed between flow guiding disc Center-to-Center pull bar and produce aquaporin, closed assembly disc-type film bag between adjacent two flow guiding discs, do not contact between disc-type film bag and upper and lower flow guiding disc, form filtration channel, at the inner installing electrodes plate of stacked film bag.
Described screen apparatus is thin grid or screen cloth.
Described overcritical water oxidization reactor comprises cylindrical shell, burner, evaporation wall; Described inner barrel arranges evaporation wall with one heart, the narrow gap closed of the multistage annular along cylindrical shell axial distribution is formed between described evaporation wall and cylindrical shell, each described narrow gap has water inlet on cylindrical shell, the liquid passed into via water inlet can be infiltrated by described evaporation wall, forms moisture film at evaporation wall internal surface; Described burner stretches into from cylindrical shell top, the burner of described burner is positioned at described cylindrical shell, evaporation wall is made of porous materials, described liquid is subcritical water, cylindrical shell top is shaped with sewage inlet and oxygen intake, burner is shaped with fuel inlet and oxygen intake, and cylinder body bottom is shaped with liquid outlet.
Pneumatic outlet Bonding pressure energy recovery system, oxygen enrichment reclaiming system and the described oxygen supply system successively of described Separate System of Water-jet.
Arrange heat exchange system between described gas solid separation system and Separate System of Water-jet, the vapour outlet of described heat exchange system connects steam utilization equipment.
Advantage of the present utility model and beneficial effect are:
For the situation that dyeing waste water COD value is larger, add film enrichment (MET:Membrane Enrich Treatment) technique in the front end of supercritical water oxidation technique and waste water is concentrated.Organism in dense water is highly enriched, enters supercritical water oxidation system and processes; Product water simultaneously through membrane concentration technique is that middle water carries out reuse.Film enrichment (MET) enables the dyeing waste water of large COD value carry out supercritical water oxidation process with the combination of supercritical water oxidation (SCWO), realize no pollution discharge, organic removal rate can reach more than 99 percent, effluent color dilution is up to standard, the resource produced in RE waste water treating processes, the energy directly utilize or reclaim, can reduce investment outlay, reduce processing cost.
Overcritical water oxidization reactor of the present utility model adopts multi-layer cylinder, separate region is formed between each layer cylindrical shell and evaporation wall, what enter this region is subcritical water, subcritical water is under the effect of pressure reduction, flow into evaporation wall internal surface, because evaporation wall adopts multistage installation, each subregion regulates flooding quantity separately, ensure that and form the uniform moisture film of a layer thickness thereon, the inorganic salt produced in supercritical reaction process are dissolved, prevent the fouling of inorganic salt on inwall, prevent corrosives to contact with inner tube wall thus the corrosion caused simultaneously; Reacting fluid after desalination flows out from bottom, improves the security of device, and the use of evaporation wall reduces the selection difficulty to reactor cylinder material; Simultaneously when evaporation wall is broken or block, without the need to changing all evapn wall, the evaporation wall only need changing damage can use.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel dyeing waste water total system;
Fig. 2 is the structural representation of the dish tubular membrane tripping device in the utility model;
Fig. 3 is the structural representation of the battery lead plate in the dish tubular membrane tripping device in the utility model;
Fig. 4 is the structural representation of the overcritical water oxidization reactor in the utility model.
Description of reference numerals:
Fine fack 1, equalizing tank 2, membrane filtration system 3, first dish tubular membrane tripping device (DTNF1) 4, second dish tubular membrane tripping device (DTNF2) 5, 3rd dish tubular membrane tripping device (DTNF3) 6, 4th dish tubular membrane tripping device (DTNF4) 7, clean water basin 8, starting fluid system 9, supercritical water oxidation (SCWO) reactor 10, gas solid separation system 11, heat exchange system 12, Separate System of Water-jet 13, pressure energy recovery system 14, oxygen provides system 15, solid salt collecting device 16, steam utilization equipment 17, oxygen enrichment reclaiming system 18, produce aquaporin 19, center pull rod 20, power supply end cap 21, pressure casing 22, dense water out 23, produce water out 24, intake end cover 25, original water inlet 26, former aquaporin 27, flow guiding disc 28, disc-type film bag 29, battery lead plate 30, filtration channel 31, notch 32, terminal stud dodges hole 33, terminal stud open holes 34, cylindrical shell 35, water inlet 36, narrow gap 37, sewage inlet and oxygen intake 38, burner is shaped with fuel inlet and oxygen intake 39, burner 40, evaporation wall 41, liquid outlet 42.
Embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of novel dyeing waste water total system, comprise pretreatment unit, sewage enrichment unit, supercritical water oxidation unit, pretreatment unit, sewage enrichment unit, supercritical water oxidation unit are communicated with successively.
Pretreatment unit, comprise fine fack 1, equalizing tank 2, fine fack, equalizing tank are communicated with successively.
Sewage enrichment unit, comprise membrane filtration system 3, first dish tubular membrane tripping device (DTNF1) 4, second dish tubular membrane tripping device (DTNF2) 5, 3rd dish tubular membrane tripping device (DTNF3) 6, 4th dish tubular membrane tripping device (DTNF4) 7, clean water basin 8, membrane filtration system, first dish tubular membrane tripping device (DTNF1), second dish tubular membrane tripping device (DTNF2), 3rd dish tubular membrane tripping device (DTNF3) is communicated with successively, first dish tubular membrane tripping device (DTNF1), second dish tubular membrane tripping device (DTNF2), 3rd dish tubular membrane tripping device (DTNF3), clean water basin, fine fack is all communicated with the 4th dish tubular membrane tripping device (DTNF4), 3rd dish tubular membrane tripping device (DTNF3) is communicated with supercritical water oxidation (SCWO) reactor.
As shown in Figure 2, above-mentioned dish tubular membrane tripping device is by pressure casing 22, power supply end cap 21, intake end cover 25, flow guiding disc 28, disc-type film bag 29, battery lead plate 30 and center pull rod 20 are formed, power supply end cap, multiple flow guiding disc and intake end cover stack successively, and adopt center pull rod to install fixing in the middle.Pressure casing sealing is installed in outside power supply end cap and intake end cover, former aquaporin 27 is formed between flow guiding disc periphery and pressure casing, notch 32 is shaped with in the middle part of flow guiding disc, to form filtration channel 31, formed between flow guiding disc Center-to-Center pull bar and produce aquaporin 19, between adjacent two flow guiding discs, closed assembly disc-type film bag, does not contact between disc-type film bag and upper and lower flow guiding disc, forms filtration channel.At the inner installing electrodes plate of stacked film bag.
As shown in Figure 3, battery lead plate is shaped with terminal stud open holes 34, and side relative to terminal stud open holes is shaped with terminal stud and dodges hole 33, and two battery lead plates forming interdigital electrode are symmetrical placement, and two adjacent electrode plates form interdigital electrode.Intake end cover is shaped with the original water inlet 26 be communicated with former aquaporin, and intake end cover is also shaped with the dense water out 23 be communicated with filtration channel, and the product water out 24 be communicated with product aquaporin.Produce water out and be formed on lower jacket sidewall.
Supercritical water oxidation unit, comprise oxygen and system 15 is provided, starting fluid system 9, supercritical water oxidation (SCWO) reactor 10, gas solid separation system 11, heat exchange system 12, pressure energy recovery system 14, Separate System of Water-jet 13, oxygen enrichment reclaiming system 18, oxygen provides system, starting fluid system is all communicated with supercritical water oxidation (SCWO) reactor, supercritical water oxidation (SCWO) reactor, gas solid separation system, heat exchange system, Separate System of Water-jet, pressure energy recovery system is communicated with successively, the pneumatic outlet of Separate System of Water-jet connects oxygen enrichment reclaiming system and described oxygen supply system successively.
The vapour outlet of heat exchange system connects steam utilization equipment 17, and the solid outlet of gas solid separation system is connected to solid salt collecting device 16.Separate System of Water-jet is communicated with clean water basin simultaneously, and oxygen enrichment reclaiming system provides system connectivity with oxygen simultaneously.
As shown in Figure 4, supercritical water oxidation (SCWO) reactor, it comprises cylindrical shell 35, burner 40, evaporation wall 41; Described inner barrel arranges evaporation wall with one heart, the narrow gap 37 closed of the multistage annular along cylindrical shell axial distribution is formed between described evaporation wall and cylindrical shell, each described narrow gap has water inlet 36 on cylindrical shell, the liquid passed into via water inlet can be infiltrated by described evaporation wall, forms moisture film at evaporation wall internal surface; Burner stretches into from cylindrical shell top, the burner of described burner is positioned at cylindrical shell, evaporation wall is made of porous materials, described liquid is subcritical water, cylindrical shell top is shaped with sewage inlet and oxygen intake 38, burner is shaped with fuel inlet and oxygen intake 39, and cylinder body bottom is shaped with liquid outlet 42.
The method of work of this novel dyeing waste water integrated conduct method is:
In the present embodiment, design influent COD is 1000mg/L.
(1) homogeneous: dyeing waste water enters equalizing tank after fine fack filters, and carries out homogeneous and all measures adjustment.
(2) membrane filtration: the dyeing waste water all measuring adjustment through homogeneous enters UF membrane filtration system, remove suspended substance residual in waste water and reduce turbidity, the dyeing waste water after membrane filtration enters the first dish tubular membrane tripping device (DTNF1).
(3) membrane concentration: the dyeing waste water after membrane filtration enters the first dish tubular membrane tripping device (DTNF1) and carries out filtering and concentrating, its dense water again enter the second dish tubular membrane tripping device (DTNF2) carry out secondary filtration concentrate, its dense water again enters the 3rd dish tubular membrane tripping device (DTNF3) and carries out third time filtering and concentrating, and the dense water after three filtering and concentrating enters overcritical water oxidization reactor; All enter the 4th dish tubular membrane tripping device (DTNF4) from the product mouth of a river product water out of the first dish tubular membrane tripping device (DTNF1), the second dish tubular membrane tripping device (DTNF2), the 3rd dish tubular membrane tripping device (DTNF3) and carry out filtering and concentrating again, the product water of the 4th dish tubular membrane tripping device (DTNF4) enters clean water basin reuse, turns back to fine fack proceed membrane concentration process through the dense water of the output of the 4th dish tubular membrane tripping device (DTNF4).
(4) supercritical water oxidation (SCWO): the fuel of the oxygen that the dense water after membrane concentration, oxygen provide system to prepare, starting fluid system enters overcritical water oxidization reactor respectively and carries out oxidizing reaction, operating pressure is at 25-28MPa, working temperature is at 400-500 DEG C, to remove most of organism, generate the supercutical fluid containing inorganic salt.
(5) gas solid separation: be separated by cyclonic separator with inorganic salt at the reacted supercutical fluid of overcritical water oxidization reactor internal oxidition, inorganic salt remove in solid form to be collected by solid salt collecting device.
(6) gas-liquid separation: the supercutical fluid after desalination enters heat exchange system multi-stage heat exchanger, thermal power transfer is that steam enters steam utilization equipment and carries out generating electricity or heating etc.; Separate System of Water-jet is by back pressure valve control pressure to 5 ~ 10MPa, and carry out gas phase and liquid phase separation, gas fraction is carbonic acid gas and unnecessary oxygen mix, and liquid portion is water, and the clear water that gas-liquid separation obtains directly enters clean water basin and utilized.
(7) oxygen enrichment reuse: the gas after gas-liquid separation enters into pressure energy recovery system pressure recovery energy, and is separated into carbon dioxide and oxygen, unnecessary oxygen can direct oxygen enrichment reclaiming system in the present system, is recycled.

Claims (7)

1. a novel dyeing waste water total system, is characterized in that: it comprises pretreatment unit, sewage enrichment unit and supercritical water oxidation unit; Described pretreatment unit comprises the screen apparatus and equalizing tank that are communicated with successively; Described sewage enrichment unit comprises the membrane filtration system and membrane concentration system that are communicated with successively, and the entrance of described membrane filtration system connects the outlet of described pretreatment unit, and the product water out of described membrane concentration system connects clean water basin;
Described supercritical water oxidation unit comprises oxygen supply system, starting fluid system, overcritical water oxidization reactor, gas solid separation system, Separate System of Water-jet, wherein, starting fluid system, overcritical water oxidization reactor, gas solid separation system, Separate System of Water-jet connect successively, the sewage inlet of described overcritical water oxidization reactor connects the dense water out of described sewage enrichment unit, the oxygen intake of overcritical water oxidization reactor connects described oxygen supply system, and the outlet of described Separate System of Water-jet connects described clean water basin.
2. novel dyeing waste water total system according to claim 1, is characterized in that: described membrane concentration system comprises the first strainer, the second strainer, the 3rd strainer and the 4th strainer; The dense water out of described first strainer connects the entrance of described second strainer, the dense water out of described second strainer connects the entrance of described 3rd strainer, and the dense water out of described 3rd strainer connects the sewage inlet of described overcritical water oxidization reactor; Described first strainer, the second strainer and the product water out of the 3rd strainer are all connected the entrance of described 4th strainer, the dense water out of described 4th strainer connects the entrance of described first strainer, and the product water out of described 4th strainer connects described clean water basin.
3. novel dyeing waste water total system as claimed in claim 2, it is characterized in that: described first strainer, second strainer, 3rd strainer and the 4th strainer are dish tubular membrane tripping device, this dish tubular membrane tripping device is by pressure casing, power supply end cap, intake end cover, flow guiding disc, disc-type film bag, battery lead plate and center pull rod are formed, power supply end cap, multiple flow guiding disc and intake end cover stack successively, and adopt center pull rod to install fixing in the middle, pressure casing sealing is installed in outside power supply end cap and intake end cover, former aquaporin is formed between flow guiding disc periphery and pressure casing, notch is shaped with in the middle part of flow guiding disc, to form filtration channel, formed between flow guiding disc Center-to-Center pull bar and produce aquaporin, closed assembly disc-type film bag between adjacent two flow guiding discs, do not contact between disc-type film bag and upper and lower flow guiding disc, form filtration channel, at the inner installing electrodes plate of stacked film bag.
4. the novel dyeing waste water total system as described in claim 1 or 2 or 3, is characterized in that: described screen apparatus is thin grid or screen cloth.
5. novel dyeing waste water total system according to claim 1, is characterized in that: described overcritical water oxidization reactor comprises cylindrical shell, burner, evaporation wall; Described inner barrel arranges evaporation wall with one heart, the narrow gap closed of the multistage annular along cylindrical shell axial distribution is formed between described evaporation wall and cylindrical shell, each described narrow gap has water inlet on cylindrical shell, the liquid passed into via water inlet can be infiltrated by described evaporation wall, forms moisture film at evaporation wall internal surface; Described burner stretches into from cylindrical shell top, the burner of described burner is positioned at described cylindrical shell, evaporation wall is made of porous materials, described liquid is subcritical water, cylindrical shell top is shaped with sewage inlet and oxygen intake, burner is shaped with fuel inlet and oxygen intake, and cylinder body bottom is shaped with liquid outlet.
6. the novel dyeing waste water total system of one according to claim 1 or 2 or 3 or 5, is characterized in that: pneumatic outlet Bonding pressure energy recovery system, oxygen enrichment reclaiming system and the described oxygen supply system successively of described Separate System of Water-jet.
7. the novel dyeing waste water total system of one according to claim 1 or 2 or 3 or 5, it is characterized in that: arrange heat exchange system between described gas solid separation system and Separate System of Water-jet, the vapour outlet of described heat exchange system connects steam utilization equipment.
CN201520164168.6U 2015-03-23 2015-03-23 A kind of novel dyeing waste water total system Withdrawn - After Issue CN204490660U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710045A (en) * 2015-03-23 2015-06-17 内蒙古天一环境技术有限公司 Novel dyeing wastewater comprehensive treatment system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710045A (en) * 2015-03-23 2015-06-17 内蒙古天一环境技术有限公司 Novel dyeing wastewater comprehensive treatment system and method

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Granted publication date: 20150722

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