CN107417050A - A kind of low concentration advanced treatment method for printing and dyeing wastewater - Google Patents
A kind of low concentration advanced treatment method for printing and dyeing wastewater Download PDFInfo
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Abstract
The invention discloses a kind of low concentration advanced treatment method for printing and dyeing wastewater, the present invention carries out quick adsorption processing to dyeing waste water using adsorbent, water qualified discharge or reuse after adsorption treatment.Adsorbent after absorption regenerates and reused after solvent processing desorption, and desorption liquid turns into high-concentration waste water, and water is that original place manages the 1/100~1/200 of water, and greatly reducing needs wastewater flow rate to be processed.High concentration desorption concentrate carries out oxidative degradation processing using high-level oxidation technology, improve its biochemical degradation performance, its B/C value is brought up to more than 0.3, Biochemistry Reaction System is entered back into afterwards and carries out inexpensive biochemical degradation, be finally reached the depth integrated treatment of dyeing waste water.The technical matters is simple, cost of investment is low, on existing technique carry out transformation and upgrade when on former technique without influence.
Description
Technical field
The present invention is field of water pollution control, and in particular to a kind of low concentration advanced treatment method for printing and dyeing wastewater.
Background technology
China is weaving big country, and textile industry has turned into China's worldwide one of most competitive industry.Spin
Knit industry and play the national economy in China huge effect.However, textile industry is also heavy polluted industry.At present, China is spun
The discharge capacity for knitting industry waste water has leapt to first four of industrial enterprise's wastewater discharge.According to statistics, China annual textile industry
Wastewater discharge accounts for more than the 10% of industrial wastewater total amount up to more than 2,000,000,000 tons.And in textile waste, printing and dyeing are useless
Water accounts for the 80-90% of total amount.Contain synthetic dyestuffs, auxiliary agent, finish, soda acid, fiber impurity, sand class, poly- second in dyeing waste water
Enol (PVA) slurry and inorganic salts etc., cause its have colourity is big, COD is high, it is alkaline it is big, B/C values are smaller, biodegradability difference etc.
Feature.
At present, there are Physical, chemical method and bioanalysis to the method that treatment of dyeing wastewater mainly uses.Physical is mainly
Absorption method and membrane separation process.Physisorphtion carries out adsorption treatment to water miscible dyestuff frequently with activated carbon, but activated carbon is inhaled
It is attached easily to reach saturation, it is necessary to be regenerated, and regeneration is costly, therefore this method applies in general to advanced treating or dense
Spend low, the less wastewater treatment of water.Membrane separation process is the semipermeable membrane with different pore size size, by different-grain diameter size
Mixture is separated by filtration.Mainly there are NF membrane, microfiltration membranes and reverse osmosis membrane etc..This method stable water outlet, effect is good, but point
It is high from the cost of film, and be difficult to reuse, therefore the technology is difficult to be widely applied.Chemical method mainly includes chemical coagulation
Method, Ozonation and photocatalytic oxidation.Chemical coagulation process is to rely on intermolecular interaction, hangs waste water small molecular
Float, colloidal substance etc. form macromolecular particle thing, then are removed it by precipitation or pneumatically supported mode.Coagulation with Treatment cost
It is small, simple to operate, the extensive use during current treatment of dyeing wastewater, but this method needs to carry out after-treatment to body refuse,
It is and bad for water-soluble high dye decolored effect.Ozonation has larger excellent for processing chroma in waste water and reduction COD
Gesture, but ozone generator cost is higher, and operational management requirement is strict, effect is unstable in practice.Photochemical catalytic oxidation
Method is to produce free radical by photochemical catalyst, by the oxidation operation in waste water into carbon dioxide and water, because catalyst is to too
The utilization rate of sunlight is low, limits its application in treatment of dyeing wastewater.Bioanalysis is gone by the growth metabolism of microorganism
Except the organic pollution in waste water, because the biodegradability of dyeing waste water is poor, Biochemical method dyeing waste water, which is used alone, is difficult
Reach discharge or reuse requirement.
These conventional processes are all difficult to reach the more and more harsh ring of country to the final result for the treatment of of dyeing wastewater
Border discharge standard.State Ministry of Environmental Protection's issue on October 19th, 2012《Textile dyeing and finishing industrial water pollution thing discharge standard》
(GB4287-2012) provide, from 1 day January in 2015, the discharge standard of textile dyeing and finishing industrial wastewater is further improved, and
And to environmental bearing capacity is weak, environmental carrying capacity is small and tightened up water quality discharge standard is carried out in the area of ecological environment frailty, and
China's major part printing and dyeing enterprise is at these regions, it is necessary to perform strict discharge standard.This undoubtedly increases dyeing
The pressure of wastewater treatment, new challenge is also proposed to the advanced treating of dyeing waste water and reuse.
At present, the predicament of dyeing waste water advanced treating is high in the organic concentration in original waste water, with physico-chemical process and life
Though the processing of change method can remove most of organic matter, the wastewater discharge standard difficulty that reach new is very big.Have at present
Different technology and technical combinations study the advanced treating of dyeing waste water, primarily directed to the low concentration after prime PROCESS FOR TREATMENT
Dyeing waste water (being mostly the secondary clarifier effluent after biochemical treatment), such as the technique such as charcoal absorption, advanced oxidation, film process, or
The combination of these techniques of person.But existing technical matters is in the prevalence of processing cost height, complex operation and fluctuation of service
The problems such as.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of low concentration advanced treatment method for printing and dyeing wastewater, use
High-level oxidation technology carries out oxidative degradation processing, improves its biochemical degradation performance, its B/C value is brought up into more than 0.3, Zhi Houzai
Inexpensive biochemical degradation is carried out into Biochemistry Reaction System, is finally reached the depth integrated treatment of dyeing waste water.
In order to achieve the above object, the present invention comprises the following steps：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge passes through adsorbent
Carry out adsorption treatment；
Step 2, standard water discharge discharge or reuse after absorption, the adsorbent after absorption is after solvent processing desorption
Form adsorbent and desorption liquid, adsorbent adsorb to bio-chemical effluent again；
Step 3, desorption liquid carries out advanced oxidation degradation processing using advanced oxidation processes, then together enters with dyeing waste water
Biochemical degradation is carried out in biochemical treatment system, completes the advanced treating of dyeing waste water.
In step 2, water outlet after absorption carries out separation of solid and liquid, the liquid discharged after separation of solid and liquid for qualified discharge or
The water outlet of reuse, solid are the adsorbent after absorption.
In step 3, desorption liquid after being handled by advanced oxidation carries out separation of solid and liquid, the solid dehydration after separation of solid and liquid
Outward transport, liquid enter biochemical treatment system.
It is 100~500mg/L that dyeing waste water, which includes the dyeing waste water that COD concentration is 100~500mg/L or COD concentration,
The secondary clarifier effluent through biochemical treatment.
The mass ratio of adsorbent and dyeing waste water is 1：(1000-10000).
The adsorption time of adsorbent is 1-5h.
Advanced oxidation processes include phase Fenton oxidation method, Ozonation, potassium ferrate oxidizing process, electrochemical oxidation process, iron
One kind in oxidation of coal method or wet oxidation process.
Desorption processing solvent includes acid solution or aqueous slkali, and the concentration of acid solution or aqueous slkali is 0.01~5mol/L, de-
Attached processing time is 0.5~2h.
Acid solution is included in sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, ethanedioic acid, oxalic acid, citric acid and malic acid
One or more mixing；
Aqueous slkali includes sodium hydroxide, potassium hydroxide, ammonium hydroxide, calcium hydroxide, methylamine, ethamine, alkaloid, triethylamine
With one or more mixing in triethylene diamine.
Adsorbent uses polyaniline composite titanium dioxide adsorbent or polypyrrole/titanium dioxide compound adsorbent.
Compared with prior art, the present invention is concentrated dyeing waste water bio-chemical effluent with adsorbent to the utmost, after processing
Water qualified discharge or reuse, and be desorbed 1/100~1/200 amount that concentrate only has raw water, considerably reducing needs to handle
Water, while improve the concentration of pollutant, be easy to the reduction of subsequent treatment and processing cost.Pass through adsorbent in this method
Processing to low concentration wastewater, can also be reduced to a certain extent while waste water COD is reduced the ammonia nitrogen of waste water, total phosphorus and
Part heavy metal ion；High concentration concentration wastewater oxidation degradation process is not required to degrade organic matter complete oxidation, but improved
Enter biochemical reactor after its bio-degradable performance and carry out biochemical treatment, so as to reduce reagent dosage in oxidizing process,
Reaction condition is not required to excessively strictly, also reduce processing cost；The present invention only need to be after original biochemical treatment in implementation process
End increase Adsorption Concentration, the equipment of oxidative degradation, it is not necessary to big transformation is carried out to former processing system, while is applied in this operation scheme
Former reaction system is convenient and swift for the upgrading of existing waste water treatment process without parking in work process.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, the present invention comprises the following steps：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge passes through adsorbent
The mass ratio of progress adsorption treatment, adsorbent and dyeing waste water is 1：(1000-10000), adsorption time 1-5h；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, adsorbent adsorb to bio-chemical effluent again；
Step 3, desorption liquid carries out advanced oxidation degradation processing using advanced oxidation processes, after being handled by advanced oxidation
Desorption liquid carries out separation of solid and liquid, and the solid dehydration outward transport after separation of solid and liquid, liquid together enters biochemical treatment with dyeing waste water again
Biochemical degradation is carried out in system, completes the advanced treating of dyeing waste water.
It is 100~500mg/L that dyeing waste water, which includes the dyeing waste water that COD concentration is 100~500mg/L or COD concentration,
The secondary clarifier effluent through biochemical treatment.
Advanced oxidation processes include phase Fenton oxidation method, Ozonation, potassium ferrate oxidizing process, electrochemical oxidation process, iron
One kind in oxidation of coal method or wet oxidation process.
Desorption processing solvent includes acid solution or aqueous slkali, and the concentration of acid solution or aqueous slkali is 0.01~5mg/L, is desorbed
Processing time is 0.5~2h.
Acid solution is included in sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, ethanedioic acid, oxalic acid, citric acid, malic acid
One or more mixing；
Aqueous slkali includes sodium hydroxide, potassium hydroxide, ammonium hydroxide, calcium hydroxide, methylamine, ethamine, alkaloid, three second
Amine, one or more of mixing in triethylene diamine.
The water of present invention desorption concentrate only has the 1/100~1/200 of original place reason water, and greatly reducing needs into one
Walk the water of processing.
The COD concentration of low concentration dyeing waste water after present invention processing can be less than 50mg/L, be fully achieved《Textile dyeing and finishing work
Industry pollution discharge standard》(GB4287-2012) discharge standard on COD in providing.
Adsorbent of the present invention uses polyaniline composite titanium dioxide adsorbent disclosed in 201410081506.X
Or polypyrrole/titanium dioxide compound adsorbent disclosed in 201110184505.4.
Embodiment 1：
Secondary clarifier effluent COD was in 150mg/L or so after certain printing and dyeing production waste water enters biochemical treatment.And colourity is at 300 times
Left and right, it can not be discharged according to the new standard of country, simultaneously because water pollutant is more, colourity is larger, can not also meet reuse
Requirement.
It is handled using present treatment technique, absorption agent dose is 8/10000ths, and the adsorption treatment time is 2h, absorption
After the completion of using plate compression carry out separation of solid and liquid, processing standard water discharge outside arrange, table 1 be processed waste water indices.Inhale
Adsorbent after attached saturation is desorbed using 0.5mol/L sodium hydroxide solution, and desorption liquid measure is the 1/100 of processing water, is obtained
COD concentration is 10000mg/L or so desorption concentrate.Adsorbent reactivation and re-using after desorption.Desorption liquid is with homogeneous
Fenton process processing, detects to its homogeneous Fenton handling process, when its B/C value reaches more than 0.3, stops homogeneous Fenton work
Skill.Separation of solid and liquid is carried out, liquid is further processed into biochemical system, and the solid isolated carries out concentrate drying outward transport
Processing.
Certain dye house effluents of table 1 water quality parameter after present invention process is handled
| Water quality index | Unit | Water outlet the 1st day | Water outlet the 4th day | Water outlet the 7th day | Standard requirement |
| pH | Dimensionless | 6.94 | 7.2 | 7.3 | 6~9 |
| COD | mg/L | 36.4 | 49.5 | 35.3 | 60 |
| BOD5 | mg/L | 8.4 | 8.6 | 6.9 | 15 |
| Ammonia nitrogen | mg/L | 4.41 | 2.61 | 3.29 | 8 |
| Colourity | Times | 2 | 1 | 2 | 30 |
| Total phosphorus | mg/L | 0.064 | 0.074 | 0.052 | 0.5 |
| Total antimony | mg/L | 0.0012 | <0.001 | <0.001 | 0.1 |
This process program can effectively handle low concentration dyeing waste water, and the COD of dyeing waste water can be made to reach national discharge
Standard, while also have extraordinary removal effect to colourity, ammonia nitrogen, total phosphorus, total antimony.
Embodiment 2：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge passes through polyaniline
The mass ratio of composite titanium dioxide adsorbent progress adsorption treatment 1h, adsorbent and dyeing waste water is 1: 1000, wherein, printing and dyeing are useless
Water includes the dyeing waste water that COD concentration is 100mg/L or the secondary clarifier effluent through biochemical treatment that COD concentration is 100mg/L；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption processing solvent include 0.01mol/L sulfuric acid, and desorption processing time is 0.5h, and adsorbent is again to bio-chemical effluent
Adsorbed；
Step 3, desorption liquid carry out advanced oxidation degradation processing using phase Fenton oxidation method, then carry out separation of solid and liquid, consolidate
Body dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes the depth of dyeing waste water
Degree processing.
Embodiment 3：
Step 1, dyeing waste water enter biochemical treatment system, the bio-chemical effluent of biochemical treatment system discharge by polypyrrole/
The mass ratio of titanium dioxide compound adsorbent progress adsorption treatment 5h, adsorbent and dyeing waste water is 1: 10000, wherein, printing and dyeing
Waste water includes the dyeing waste water that COD concentration is 500mg/L or the second pond through biochemical treatment that COD concentration is 500mg/L goes out
Water；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption processing solvent include 5mol/L sodium hydroxide, and desorption processing time is 2h, and adsorbent enters to bio-chemical effluent again
Row absorption；
Step 3, desorption liquid carry out advanced oxidation degradation processing using Ozonation, then carry out separation of solid and liquid, solid
Dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes the depth of dyeing waste water
Processing.
Embodiment 4：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge passes through polyaniline
The mass ratio of composite titanium dioxide adsorbent progress adsorption treatment 3h, adsorbent and dyeing waste water is 1：5500, wherein, printing and dyeing are useless
Water includes the dyeing waste water that COD concentration is 300mg/L or the secondary clarifier effluent through biochemical treatment that COD concentration is 300mg/L；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption handle the mixed liquor of hydrochloric acid of the solvent including 2.5mol/L, nitric acid, phosphoric acid, formic acid and acetic acid, are desorbed processing time
For 1.3h, adsorbent adsorbs to bio-chemical effluent again；
Step 3, desorption liquid carries out advanced oxidation degradation processing using potassium ferrate oxidizing process, then carries out separation of solid and liquid,
Solid dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes dyeing waste water
Advanced treating.
Embodiment 5：
Step 1, dyeing waste water enter biochemical treatment system, the bio-chemical effluent of biochemical treatment system discharge by polypyrrole/
The mass ratio of titanium dioxide compound adsorbent progress adsorption treatment 1-5h, adsorbent and dyeing waste water is 1：7000, wherein, printing and dyeing
Waste water includes the dyeing waste water that COD concentration is 400mg/L or the second pond through biochemical treatment that COD concentration is 200mg/L goes out
Water；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption processing solvent include 3mol/L potassium hydroxide, ammonium hydroxide and calcium hydroxide mixed liquor, are desorbed processing time and are
1h, adsorbent adsorb to bio-chemical effluent again；
Step 3, desorption liquid carry out advanced oxidation degradation processing using electrochemical oxidation process, then carry out separation of solid and liquid, consolidate
Body dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes the depth of dyeing waste water
Degree processing.
Embodiment 6：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge passes through adsorbent
The mass ratio of progress adsorption treatment 1-5h, adsorbent and dyeing waste water is 1：(1000-10000), wherein, dyeing waste water includes
The second pond through biochemical treatment that the dyeing waste water or COD concentration that COD concentration is 100~500mg/L are 100~500mg/L
Water outlet；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption processing solvent include 4mol/L ethanedioic acid, oxalic acid, citric acid and malic acid mixed liquor, are desorbed processing time and are
1.5h, adsorbent adsorb to bio-chemical effluent again；
Step 3, desorption liquid carry out advanced oxidation degradation processing using iron oxidation of coal method, then carry out separation of solid and liquid, solid
Dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes the depth of dyeing waste water
Processing.
Embodiment 7：
Step 1, dyeing waste water enter biochemical treatment system, the bio-chemical effluent of biochemical treatment system discharge by polypyrrole/
The mass ratio of titanium dioxide compound adsorbent progress adsorption treatment 2h, adsorbent and dyeing waste water is 1：2000, wherein, printing and dyeing are useless
Water includes the dyeing waste water that COD concentration is 200mg/L or the secondary clarifier effluent through biochemical treatment that COD concentration is 400mg/L；
Step 2, the water outlet after absorption carry out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is qualified discharge or returns
Water outlet, solid are the adsorbent after adsorbing, and the adsorbent after absorption forms adsorbent and taken off after solvent processing desorption
Attached liquid, desorption processing solvent include the mixed liquor in 4mol/L methylamine, ethamine, alkaloid, triethylamine and triethylene diamine, taken off
Attached processing time is 2h, and adsorbent adsorbs to bio-chemical effluent again；
Step 3, desorption liquid carry out advanced oxidation degradation processing using wet oxidation process, then carry out separation of solid and liquid, solid
Dehydration outward transport, liquid together enters in biochemical treatment system with dyeing waste water carries out biochemical degradation, completes the depth of dyeing waste water
Processing.
The advanced oxidation processes to the processing of Adsorption Concentration liquid being related in the present invention, are not to reduce Adsorption Concentration liquid
COD is final purpose, but in order to improve the bio-degradable performance of Adsorption Concentration liquid, it is necessary to detect high-level oxidation technology in real time
The degree of processing, control advanced oxidation processes can improve the biodegradability of concentrate to a certain extent.Typically will absorption
The B/C values of concentrate bring up to more than 0.3 from less than 0.1, make up to demand of the biochemical treatment to B/C values.So do
On the one hand the efficiency of high-level oxidation technology can be improved, on the other hand can reduce the cost of PROCESS FOR TREATMENT.
Claims (10)
1. a kind of low concentration advanced treatment method for printing and dyeing wastewater, it is characterised in that comprise the following steps：
Step 1, dyeing waste water enter biochemical treatment system, and the bio-chemical effluent of biochemical treatment system discharge is carried out by adsorbent
Adsorption treatment；
Step 2, standard water discharge discharge or reuse after absorption, the adsorbent after absorption are formed after solvent processing desorption
Adsorbent and desorption liquid, adsorbent adsorb to bio-chemical effluent again；
Step 3, desorption liquid carries out advanced oxidation degradation processing using advanced oxidation processes, then together enters biochemistry with dyeing waste water
Biochemical degradation is carried out in processing system, completes the advanced treating of dyeing waste water.
A kind of 2. low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that in step 2,
Water outlet after absorption carries out separation of solid and liquid, and the liquid discharged after separation of solid and liquid is for qualified discharge or the water outlet of reuse, solid
Adsorbent after absorption.
A kind of 3. low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that in step 3,
Desorption liquid after being handled by advanced oxidation carries out separation of solid and liquid, and the solid dehydration outward transport after separation of solid and liquid, liquid enters biochemical
Processing system.
A kind of 4. low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that dyeing waste water bag
Include the dyeing waste water that COD concentration is 100~500mg/L or two through biochemical treatment that COD concentration is 100~500mg/L is heavy
Pond water outlet.
5. a kind of low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that adsorbent and print
The mass ratio for contaminating waste water is 1：(1000-10000).
A kind of 6. low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that the suction of adsorbent
The attached time is 1-5h.
A kind of 7. low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that advanced oxidation processes
Including phase Fenton oxidation method, Ozonation, potassium ferrate oxidizing process, electrochemical oxidation process, iron oxidation of coal method or wet oxidation
Method.
8. a kind of low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that desorption processing is molten
Agent includes acid solution or aqueous slkali, and the concentration of acid solution or aqueous slkali is 0.01~5mol/L, and desorption processing time is 0.5~
2h。
9. a kind of low concentration advanced treatment method for printing and dyeing wastewater according to claim 8, it is characterised in that acid solution includes
One or more mixing in sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, ethanedioic acid, oxalic acid, citric acid and malic acid；
Aqueous slkali includes sodium hydroxide, potassium hydroxide, ammonium hydroxide, calcium hydroxide, methylamine, ethamine, alkaloid, triethylamine and three
One or more mixing in ethylene diamine.
10. a kind of low concentration advanced treatment method for printing and dyeing wastewater according to claim 1, it is characterised in that adsorbent is adopted
With polyaniline composite titanium dioxide adsorbent or polypyrrole/titanium dioxide compound adsorbent.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793341A (en) * | 2018-06-21 | 2018-11-13 | 山东深信节能环保科技有限公司 | The method of absorption-electro-catalysis processing refractory organic waste water |
| CN109824209A (en) * | 2019-03-21 | 2019-05-31 | 福建省鸿翔纺织科技有限公司 | A kind of adsorbent reactivation treatment process of dyeing and finishing wastewater |
| CN110316911A (en) * | 2019-07-24 | 2019-10-11 | 杭州深瑞水务有限公司 | A kind for the treatment of process of the high full qualified discharge of hardly degraded organic substance waste water |
| CN110773136A (en) * | 2019-10-08 | 2020-02-11 | 西安交通大学 | Composite adsorbent, membrane protective agent containing composite adsorbent and water treatment agent |
| CN111908672A (en) * | 2020-06-29 | 2020-11-10 | 西安交通大学 | Method and system for adsorbing, removing and recycling chloride ions in chlorine-containing wastewater |
| CN112678987A (en) * | 2019-10-18 | 2021-04-20 | 中国石油化工股份有限公司 | Treatment method and application of high-COD high-phosphorus heavy metal-containing sewage |
| CN114853199A (en) * | 2021-02-03 | 2022-08-05 | 中国石油化工股份有限公司 | System and method for treating wastewater containing benzopyrene |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001038391A (en) * | 1999-08-03 | 2001-02-13 | Toshiba Corp | Treatment of waste liquid containing surfactant |
| CN102276010A (en) * | 2011-07-21 | 2011-12-14 | 东华大学 | Method for on-line treatment and recycle of printing and dyeing washing waste water and device thereof |
| CN102350317A (en) * | 2011-07-04 | 2012-02-15 | 西安交通大学苏州研究院 | Polypyrrole/titanium dioxide composite adsorbent, its preparation, application and regeneration methods |
| CN103861571A (en) * | 2014-03-06 | 2014-06-18 | 西安交通大学 | Preparation method, application and regeneration method of polyaniline and titanium dioxide composite adsorbent |
-
2017
- 2017-09-12 CN CN201710818294.2A patent/CN107417050A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001038391A (en) * | 1999-08-03 | 2001-02-13 | Toshiba Corp | Treatment of waste liquid containing surfactant |
| CN102350317A (en) * | 2011-07-04 | 2012-02-15 | 西安交通大学苏州研究院 | Polypyrrole/titanium dioxide composite adsorbent, its preparation, application and regeneration methods |
| CN102276010A (en) * | 2011-07-21 | 2011-12-14 | 东华大学 | Method for on-line treatment and recycle of printing and dyeing washing waste water and device thereof |
| CN103861571A (en) * | 2014-03-06 | 2014-06-18 | 西安交通大学 | Preparation method, application and regeneration method of polyaniline and titanium dioxide composite adsorbent |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793341A (en) * | 2018-06-21 | 2018-11-13 | 山东深信节能环保科技有限公司 | The method of absorption-electro-catalysis processing refractory organic waste water |
| CN109824209A (en) * | 2019-03-21 | 2019-05-31 | 福建省鸿翔纺织科技有限公司 | A kind of adsorbent reactivation treatment process of dyeing and finishing wastewater |
| CN109824209B (en) * | 2019-03-21 | 2021-08-27 | 福建省鸿翔纺织科技有限公司 | Dyeing and finishing wastewater adsorbent regeneration treatment process |
| CN110316911A (en) * | 2019-07-24 | 2019-10-11 | 杭州深瑞水务有限公司 | A kind for the treatment of process of the high full qualified discharge of hardly degraded organic substance waste water |
| CN110773136A (en) * | 2019-10-08 | 2020-02-11 | 西安交通大学 | Composite adsorbent, membrane protective agent containing composite adsorbent and water treatment agent |
| CN112678987A (en) * | 2019-10-18 | 2021-04-20 | 中国石油化工股份有限公司 | Treatment method and application of high-COD high-phosphorus heavy metal-containing sewage |
| CN111908672A (en) * | 2020-06-29 | 2020-11-10 | 西安交通大学 | Method and system for adsorbing, removing and recycling chloride ions in chlorine-containing wastewater |
| CN114853199A (en) * | 2021-02-03 | 2022-08-05 | 中国石油化工股份有限公司 | System and method for treating wastewater containing benzopyrene |
| CN114853199B (en) * | 2021-02-03 | 2023-10-13 | 中国石油化工股份有限公司 | Treatment system and method for benzopyrene-containing wastewater |
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