CN106630396A - Simple process for treating wastewater containing various dyes - Google Patents
Simple process for treating wastewater containing various dyes Download PDFInfo
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- CN106630396A CN106630396A CN201611088764.6A CN201611088764A CN106630396A CN 106630396 A CN106630396 A CN 106630396A CN 201611088764 A CN201611088764 A CN 201611088764A CN 106630396 A CN106630396 A CN 106630396A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
Abstract
The invention relates to a simple process for treating wastewater containing various dyes. The simple process is characterized by comprising the following steps: a. grate treatment: the wastewater containing multiple disperse dyes is subjected to grate treatment to remove large particles and then enters an adjusting tank 1; b, pH value adjustment: industrial hydrochloric acid is used to adjust pH of wastewater to 3-5, and then the wastewater enters an adsorption tank; c. desilted sludge adsorption: the desilted sludge is fed to the adsorption tank in advance; a mass-volume ratio of the desilted sludge to water is 6-10 kg/m3; the colority removal rate of the wastewater after adsorption treatment reaches 98%; the COD removal rate is 20-35%; d, treatment with an aerobic activated sludge method: supernatant after settlement enters an adjusting tank 2, is mixed with fabric base boiled and smelted wastewater until the pH is 6-8, then is pumped into the aeration tank, and is treated by the aerobic activated sludge method in the aeration tank, wherein the hydraulic retention time is 12 hours.
Description
Technical field
The present invention relates to a kind of process the simple process containing various waste water from dyestuff.
Background technology
Dyeing has big wastewater flow rate, debirs content height, colourity depth, although COD is high, and BOD/COD values are less, can
It is biochemical poor, it is one of generally acknowledged intractable industrial wastewater.At present, processing dyeing waste water often has following several method.(1) it is raw
Thing method：Biological treatment is widely used in the process of city domestic sewage, but directly processes dyeing waste water by waste water temperature with bioanalysis
Degree, pH value, kind of dyes etc. affect larger, easily cause sludge bulking, poly- micelle to disintegrate etc., so as to cause treatment effect not
Good, the waste water after process is unable to qualified discharge；And dyeing waste water concentration is high, greatly directly process waste water easily causes sludge to toxicity
The death of middle thalline is so as to causing wastewater treatment up to standard.(2) physisorphtion：Conventional activated carbon class porous adsorption material
The materials such as material, absorbing dye, it is easily affected by suspension, macromolecule pollutant, grease in pH, the waste water of waste water etc., and consumption is big
It is costly；The method is acted on colourity is removed and become apparent from, but it is not strong to remove the ability to function of COD.(3) physico-chemical process：There is neutralization
Method, coacervation, O3、Cl2, the oxidizing process such as ultraviolet irradiation etc..O3Oxidizing process high equipment cost, dosage is big, Cl2Oxidizing process toxicity
Greatly, secondary pollution is caused；Flocculence is generally adopted because its investment cost is low, equipment takes up an area less, processing capacity is big, percent of decolourization is high
With, but some waste water from dyestuff directly flocculation cannot be realized decolourizing and removing the purpose of COD.
The content of the invention
The technical problem to be solved in the present invention there is provided a kind of method of wastewater treatment containing various disperse dyes.
The technical scheme is that：One kind contains various dye wastewater treatment techniques, it is characterised in that comprise the steps of：
A. grid is processed：Waste water grid containing various disperse dyes is processed to remove and is entered into regulating reservoir 1 after big particulate matter；
B. pH value is adjusted：The pH that waste water is adjusted with technical hydrochloric acid is after 3-5, to enter into adsorption tank；C. desilting mud absorption：In adsorption tank
Desilting mud is put into advance, and desilting mud is 6-10kg/m with the mass volume ratio of water3；Waste water and desilting mud in adsorption tank
Adsorption time is 5-6 hours, and then temperature nature settles 5-6 hours；Waste water clearance rate reaches Jing after adsorption treatment
98%, COD clearance is 20-35%；D. aerobic activated sludge process is processed：Supernatant after sedimentation enters regulating reservoir 2 and fabric alkali
Boiled-off waste water mixes, and is to pump into aeration tank to be processed with aerobic activated sludge process after 6-8 to pH, and hydraulic detention time is 12 little
When, supernatant qualified discharge.
A kind of method of wastewater treatment containing various disperse dyes of the present invention, it is characterised in that described desilting mud absorption
It is modified within 4 hours for the salt acid soak of 3-5 in pH in advance for desilting mud.
A kind of method of wastewater treatment containing various disperse dyes of the present invention is that dyeing waste water is entered Jing after fine fack process
To regulating reservoir 1, in regulating reservoir 1 pH value of waste water is adjusted；Adsorption tank is entered into after the adjusted pH of waste water, with the absorption in adsorption tank
Agent is fully contacted mixing, then settles；After settlement supernatant enters regulating reservoir 2, mixed with fabric alkali boiled-off waste water in regulating reservoir 2
It is bonded to waste water and has pumped into after required pH and make good use of in aeration tank foster activated sludge process and processed；Process waste water and enter into sedimentation basin
In carry out sludge settling, supernatant qualified discharge.
The invention has the beneficial effects as follows：Main component of the present invention in dyeing waste water is disperse dyes, waste water COD
The features such as content, the waste water simple process of the process containing various dyestuffs of a set for the treatment of of wastes with processes of wastes against one another is devised, with traditional dyeing waste water
Handling process is compared reduces acid-hydrolyzed link, has saved the construction cost (2,000,000 or so) and sour water solution of sour hydrolytic tank
Operating cost (for 35% or so of cost of water treatment), while having saved run time (each process cycle of sour water solution link
Saving time 6-10 hours), decolorization rate of wastewater is stable more than 98%, and chromatic value is less than 70mg/L, and discharge of wastewater water quality is higher than
Indirect standard (GB 4287-2012, colourity=80mg/L, COD in textile dyeing and finishing industrial water pollution thing discharge standardCr=200mg/
L, TN=30mg/L, NH3- N=20mg/L).
Description of the drawings
Accompanying drawing 1 is a kind of simple process schematic diagram containing various waste water from dyestuff.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described.
Embodiment 1：
It is big that waste water (COD is 1500-1800mg/L, and pH is 5-6) Jing grids containing various disperse dyes process removal
Regulating reservoir 1 is entered into after particulate matter, the pH that waste water is adjusted with technical hydrochloric acid is that adsorption tank is entered into after 3-5, in adsorption tank in advance
Input desilting mud (desilting mud is modified in advance for 4 hours in pH for the salt acid soak of 3-5), the quality volume of desilting mud and water
Than for 6-10kg/m3；Waste water and desilting mud adsorption time are 5-6 hours in adsorption tank, and then temperature nature settles 5-6
Hour；Waste water clearance rate reaches 98%, COD clearances for 20-35% Jing after adsorption treatment；Supernatant after sedimentation is entered to be adjusted
It is to pump into after 6-8 in aeration tank with aerobic activated sludge process process, hydraulic retention that section pond 2 mixes to pH with fabric alkali boiled-off waste water
Time is 12 hours, leading indicator colourity 67mg/L in draining, COD 122mg/L, TN 25mg/L, NH3- N 18mg/L, draining
Water quality is higher than indirect standard (GB 4287-2012, colourity=80mg/L, COD in textile dyeing and finishing industrial water pollution thing discharge standard
=200mg/L, TN=30mg/L, NH3- N=20mg/L) advanced treating can be carried out with the total pipe network for entering sewage disposal.
Embodiment 2
It is big that waste water (COD is 1500-1800mg/L, and pH is 5-6) Jing grids containing various disperse dyes process removal
Regulating reservoir 1 is entered into after particulate matter, the pH that waste water is adjusted with technical hydrochloric acid is that adsorption tank is entered into after 3-5, in adsorption tank in advance
Input desilting mud (desilting mud is modified for 4 hours in pH for the salt acid soak of 3-5), desilting mud is with the mass volume ratio of water
10-15kg/m3；Waste water and desilting mud adsorption time are 5-6 hours in adsorption tank, and then temperature nature settles 5-6 little
When；Waste water clearance rate reaches 99.5%, COD clearances for 28-39% Jing after adsorption treatment；Supernatant after sedimentation is entered to be adjusted
It is to pump into after 6-8 in aeration tank with aerobic activated sludge process process, hydraulic retention that section pond 2 mixes to pH with fabric alkali boiled-off waste water
Time is 12 hours, leading indicator colourity 60mg/L in draining, COD 105mg/L, TN 22mg/L, NH3- N 17mg/L, draining
Water quality is higher than to knit indirect standard (GB 4287-2012, colourity=80mg/L, COD=in Dyeing ＆ Finishing Industry pollution discharge standard
200mg/L, TN=30mg/L, NH3- N=20mg/L) advanced treating can be carried out with the total pipe network for entering sewage disposal.
Embodiment 3
It is big that waste water (COD is 1500-1800mg/L, and pH is 5-6) Jing grids containing various disperse dyes process removal
Regulating reservoir 1 is entered into after particulate matter, the pH that waste water is adjusted with technical hydrochloric acid is that adsorption tank is entered into after 3-5, in adsorption tank in advance
Input desilting mud (desilting mud is modified for 4 hours in pH for the salt acid soak of 3-5), desilting mud is with the mass volume ratio of water
6-10kg/m3；Waste water and desilting mud adsorption time are 2-3 hours in adsorption tank, and temperature is 35 DEG C, and (temperature is by workshop high temperature
Waste water is maintained), then settle 5-6 hours；Waste water clearance rate reaches 99%, COD clearances for 28- Jing after adsorption treatment
35%；It is to pump into after 6-8 in aeration tank with aerobic that supernatant after sedimentation mixes to pH into regulating reservoir 2 with fabric alkali boiled-off waste water
Wastewater Treated by Activated Sludge Process, hydraulic detention time is 12 hours, leading indicator colourity 63mg/L in draining, COD 110mg/L, TN
22mg/L, NH3- N 17mg/L, draining water quality is higher than to knit indirect standard (GB 4287- in Dyeing ＆ Finishing Industry pollution discharge standard
2012, colourity=80mg/L, COD=200mg/L, TN=30mg/L, NH3- N=20mg/L) can with enter the total of sewage disposal
Pipe network carries out advanced treating.
Embodiment 4
It is big that waste water (COD is 1500-1800mg/L, and pH is 5-6) Jing grids containing various disperse dyes process removal
Regulating reservoir 1 is entered into after particulate matter, the pH that waste water is adjusted with technical hydrochloric acid is that adsorption tank is entered into after 3-5, in adsorption tank in advance
Input desilting mud (desilting mud is modified for 4 hours in pH for the salt acid soak of 3-5), desilting mud is with the mass volume ratio of water
6-10kg/m3；Waste water and desilting mud adsorption time are 2-3 hours in adsorption tank, and temperature is 35 DEG C, then in adsorption tank
The polyacrylamide of 2-5ppm is added, 2-4 hours are settled；Waste water clearance rate reaches 99%, COD removals Jing after adsorption treatment
Rate is 30-44%；It is to pump into aeration tank after 6-8 that supernatant after sedimentation mixes to pH into regulating reservoir 2 with fabric alkali boiled-off waste water
Middle aerobic activated sludge process is processed, and hydraulic detention time is 12 hours, leading indicator colourity 62mg/L in draining, COD
107mg/L, TN 21mg/L, NH3- N 16mg/L, draining water quality is marked indirectly higher than knitting in Dyeing ＆ Finishing Industry pollution discharge standard
Standard (GB 4287-2012, colourity=80mg/L, COD=200mg/L, TN=30mg/L, NH3- N=20mg/L) can with enter dirt
Total pipe network of water process carries out advanced treating.
Claims (2)
1. it is a kind of to process the simple process containing various waste water from dyestuff, it is characterised in that to comprise the steps of：A. grid is processed：To contain
The waste water grid of various disperse dyes is processed to remove and entered into regulating reservoir 1 after big particulate matter；B. pH value is adjusted：Recruitment
It is after 3-5, to enter into adsorption tank that industry hydrochloric acid adjusts the pH of waste water；C. desilting mud absorption：Input desilting in advance in adsorption tank is become silted up
Mud, desilting mud is 6-10kg/m with the mass volume ratio of water3；Waste water and desilting mud adsorption time are 5-6 in adsorption tank
Hour, then temperature nature settles 5-6 hours；Waste water clearance rate reaches 98%, COD clearances and is Jing after adsorption treatment
20-35%；D. aerobic activated sludge process is processed：Supernatant after sedimentation mixes into regulating reservoir 2 with fabric alkali boiled-off waste water, to pH
Processed with aerobic activated sludge process to pump into after 6-8 in aeration tank, hydraulic detention time is 12 hours, supernatant qualified discharge.
2. a kind of process according to claim 1 contains the simple process of various waste water from dyestuff, it is characterised in that described is clear
Silt mud is adsorbed as desilting mud and is modified within 4 hours for the salt acid soak of 3-5 in pH in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088764.6A CN106630396A (en) | 2016-11-23 | 2016-11-23 | Simple process for treating wastewater containing various dyes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088764.6A CN106630396A (en) | 2016-11-23 | 2016-11-23 | Simple process for treating wastewater containing various dyes |
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| CN106630396A true CN106630396A (en) | 2017-05-10 |
Family
ID=58813879
Family Applications (1)
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| CN201611088764.6A Pending CN106630396A (en) | 2016-11-23 | 2016-11-23 | Simple process for treating wastewater containing various dyes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986573A (en) * | 2017-12-18 | 2018-05-04 | 张家港市清泉水处理有限公司 | One kind printing printing ink wastewater treatment system and processing method |
| CN108264032A (en) * | 2018-01-08 | 2018-07-10 | 石河子大学 | A kind of method and carbon material that the mud that flocculates is utilized to prepare carbon material with dyestuff dangerous waste |
| CN108630924A (en) * | 2018-05-02 | 2018-10-09 | 石河子大学 | A kind of method and carbon material preparing metal-doped carbon material using discarded flco |
| CN109293175A (en) * | 2018-12-10 | 2019-02-01 | 江苏悦达家纺制品有限公司 | Dye waste water treatment system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986573A (en) * | 2017-12-18 | 2018-05-04 | 张家港市清泉水处理有限公司 | One kind printing printing ink wastewater treatment system and processing method |
| CN108264032A (en) * | 2018-01-08 | 2018-07-10 | 石河子大学 | A kind of method and carbon material that the mud that flocculates is utilized to prepare carbon material with dyestuff dangerous waste |
| CN108630924A (en) * | 2018-05-02 | 2018-10-09 | 石河子大学 | A kind of method and carbon material preparing metal-doped carbon material using discarded flco |
| CN109293175A (en) * | 2018-12-10 | 2019-02-01 | 江苏悦达家纺制品有限公司 | Dye waste water treatment system and method |
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