CN106587489A - Treatment process for wastewater in dyeing and finishing industry - Google Patents
Treatment process for wastewater in dyeing and finishing industry Download PDFInfo
- Publication number
- CN106587489A CN106587489A CN201611088856.4A CN201611088856A CN106587489A CN 106587489 A CN106587489 A CN 106587489A CN 201611088856 A CN201611088856 A CN 201611088856A CN 106587489 A CN106587489 A CN 106587489A
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- waste water
- wastewater
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- cultivating
- adsorption
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Classifications
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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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a treatment process for wastewater in a dyeing and finishing industry. The treatment process is characterized by comprising the following steps: a. carrying out grid treatment, namely carrying out the grid treatment on the wastewater containing various types of dispersible dyestuffs to remove large particulate matters; then conveying the wastewater into an adjusting tank 1; b. adjusting the pH (Potential of Hydrogen) value, namely adjusting the pH of the wastewater to be 3-5 with industrial hydrochloric acid and then conveying the wastewater into an adsorption tank; c. adsorbing by mushroom cultivation wastes, namely adding the crushed mushroom cultivation wastes into the adsorption tank in advance and depositing at a natural temperature for 1h-2h, wherein the chroma removal rate of the wastewater subjected to adsorption treatment reaches 97% and the removing rate of COD (Chemical Oxygen Demand) is 20%-35%; and d. treating by an aerobic activated sludge method, namely conveying deposited supernatant into an adjusting tank 2 and mixing the supernatant with textile alkali boiling wastewater until the pH value is 6-8; and pumping the wastewater into an aeration tank, and treating by utilizing the aerobic activated sludge method, wherein the hydraulic retention time is 12 hours.
Description
Technical field
The present invention relates to a kind of handling process of dyeing and finishing industry waste water.
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 handling process of dyeing and finishing industry waste water.
The technical scheme is that：A kind of handling process of dyeing and finishing industry waste water, 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 in 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. mushroom-cultivating waste material absorption：Absorption
The mushroom-cultivating waste material that in advance input is crushed in pond, mushroom-cultivating waste material is 8-10kg/m with the mass volume ratio of water3；In absorption
Waste water and mushroom-cultivating waste material adsorption time are 5-6 hours in pond, and then temperature nature settles 1-2 hours；Jing after adsorption treatment
Waste water clearance rate reaches 97%, COD clearances for 20-35%；D. aerobic activated sludge process is processed：Supernatant after sedimentation enters
Enter regulating reservoir 2 to mix with fabric alkali boiled-off waste water, be to pump into after 6-8 in aeration tank with aerobic activated sludge process process, water to pH
The power time of staying is 12 hours, supernatant qualified discharge.
A kind of handling process of dyeing and finishing industry waste water of the present invention, it is characterised in that described mushroom-cultivating waste material is broken
Mushroom-cultivating waste granules size is modified in advance for 4 hours in pH between 0.5-2cm for the salt acid soak of 3-5.
A kind of handling process of dyeing and finishing industry waste water of the present invention is that dyeing waste water enters into regulating reservoir Jing after fine fack process
1, adjust the pH value of waste water in regulating reservoir 1；Adsorption tank is entered into after the adjusted pH of waste water, is fully connect with the adsorbent in adsorption tank
Mixing is touched, is then settled；After settlement supernatant enters regulating reservoir 2, mixes to waste water with fabric alkali boiled-off waste water in regulating reservoir 2
Pump into after required pH and make good use of in aeration tank foster activated sludge process and processed；Process waste water is entered in sedimentation basin and carries out dirt
Mud is precipitated, 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 treatment process of the process containing various disperse dyes of a set for the treatment of of wastes with processes of wastes against one another is devised, with traditional print
Dye waste water treatment process is compared and reduces acid-hydrolyzed link, saved the construction cost (2,000,000 or so) of sour hydrolytic tank with
Sour water solution operating cost (for 35% or so of cost of water treatment), while having saved the run time (everywhere of sour water solution link
The reason cycle saves time 8-10 hour), decolorization rate of wastewater is stable more than 97%, and chromatic value is not higher than 72mg/L, 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 standard
=200mg/L, TN=30mg/L, NH3- N=20mg/L).
Description of the drawings
Accompanying drawing 1 is a kind of process schematic representation of the handling process of dyeing and finishing industry waste water.
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
(broken mushroom-cultivating waste granules size is in advance 3-5 in pH between 0.5-2cm to the broken mushroom-cultivating waste material of input
Salt acid soak 4 hours be modified), mushroom-cultivating waste material is 8-10kg/m with the mass volume ratio of water3；In adsorption tank waste water with
Mushroom-cultivating waste material adsorption time is 5-6 hours, and then temperature nature settles 1-2 hours；Chroma in waste water goes Jing after adsorption treatment
Except rate reaches 97%, COD clearances for 20-35%；Supernatant after sedimentation into regulating reservoir 2 mix with fabric alkali boiled-off waste water to
PH is to pump in aeration tank to be processed with aerobic activated sludge process after 6-8, and hydraulic detention time is 12 hours, leading indicator in draining
Colourity 72mg/L, COD 135mg/L, TN 27mg/L, NH3- N 18mg/L, draining water quality is higher than textile dyeing and finishing industrial water pollution
Indirect standard (GB 4287-2012, colourity=80mg/L, COD=200mg/L, TN=30mg/L, NH in thing discharge standard3-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
The broken mushroom-cultivating waste material of input (mushroom-cultivating waste material is modified for 4 hours in pH for the salt acid soak of 3-5), mushroom-cultivating waste material with
The mass volume ratio of water is 10-15kg/m3；Waste water and mushroom-cultivating waste material adsorption time are 5-6 hours in adsorption tank, temperature
It is natural, then settle 1-2 hours；Waste water clearance rate reaches 98%, COD clearances for 30-38% Jing after adsorption treatment；It is heavy
It is to pump into make good use of in aeration tank oxygen activity dirt after 6-8 that supernatant after drop mixes to pH into regulating reservoir 2 with fabric alkali boiled-off waste water
Mud method process, hydraulic detention time is 12 hours, leading indicator colourity 67mg/L in draining, COD 125mg/L, TN 25mg/L,
NH3- N 18mg/L, draining water quality is higher than to knit indirect standard (GB 4287-2012, color in Dyeing ＆ Finishing Industry pollution discharge standard
Degree=80mg/L, COD=200mg/L, TN=30mg/L, NH3- N=20mg/L) can carry out with the total pipe network for entering sewage disposal
Advanced treating.
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
The broken mushroom-cultivating waste material of input (mushroom-cultivating waste material is modified for 4 hours in pH for the salt acid soak of 3-5), mushroom-cultivating waste material with
The mass volume ratio of water is 6-10kg/m3；Waste water and mushroom-cultivating waste material adsorption time are 2-3 hours in adsorption tank, temperature
For 35 DEG C (water temperature in adsorption tank is maintained by the hot waste water in workshop), 1-2 hours are then settled；The waste water color Jing after adsorption treatment
Degree clearance reaches 98.5%, COD clearances for 25-35%；Supernatant after sedimentation enters regulating reservoir 2 and fabric alkali boiled-off waste water
It is to pump in aeration tank to be processed with aerobic activated sludge process after 6-8 to mix to pH, and hydraulic detention time is 12 hours, main in draining
Want index colourity 67mg/L, COD 128mg/L, TN 25mg/L, NH3- N 18mg/L, draining water quality is higher than to knit Dyeing ＆ Finishing Industry water
Indirect standard in pollutant emission standard (GB 4287-2012, colourity=80mg/L, COD=200mg/L, TN=30mg/L,
NH3- N=20mg/L) advanced treating can be carried out with the total pipe network for entering sewage disposal.
Claims (2)
1. a kind of handling process of dyeing and finishing industry waste water, it is characterised in that comprise the steps of：A. grid is processed：Various points will be contained
The waste water grid of scattered property dyestuff is processed to remove and entered in regulating reservoir 1 after big particulate matter；B. pH value is adjusted：Use technical hydrochloric acid
The pH for adjusting waste water is after 3-5, to enter into adsorption tank；C. mushroom-cultivating waste material absorption：The mushroom that in advance input is crushed in adsorption tank
Mushroom cultivates waste material, and mushroom-cultivating waste material is 8-10kg/m with the mass volume ratio of water3；Waste water gives up with mushroom-cultivating in adsorption tank
Material adsorption time is 5-6 hours, and then temperature nature settles 1-2 hours；Waste water clearance rate reaches Jing after adsorption treatment
97%, 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 in 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.
2. a kind of handling process of dyeing and finishing industry waste water according to claim 1, it is characterised in that described mushroom-cultivating
Waste material be broken mushroom-cultivating waste granules size between 0.5-2cm, change within 4 hours for the salt acid soak of 3-5 in pH in advance
Property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088856.4A CN106587489A (en) | 2016-11-23 | 2016-11-23 | Treatment process for wastewater in dyeing and finishing industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088856.4A CN106587489A (en) | 2016-11-23 | 2016-11-23 | Treatment process for wastewater in dyeing and finishing industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106587489A true CN106587489A (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611088856.4A Pending CN106587489A (en) | 2016-11-23 | 2016-11-23 | Treatment process for wastewater in dyeing and finishing industry |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622974A (en) * | 2018-05-04 | 2018-10-09 | 天津工业大学 | A method of using brown mushroom give up bacteria residue handle textile printing and dyeing waste water from dyestuff |
| CN109748350A (en) * | 2018-12-11 | 2019-05-14 | 广州普邦园林股份有限公司 | The adsorbent and restorative procedure of one heavy metal species and polycyclic aromatic hydrocarbons contaminated water body |
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| CN102001789A (en) * | 2010-11-15 | 2011-04-06 | 北京国能普华环保工程技术有限公司 | Process for treating coal chemical waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622974A (en) * | 2018-05-04 | 2018-10-09 | 天津工业大学 | A method of using brown mushroom give up bacteria residue handle textile printing and dyeing waste water from dyestuff |
| CN108622974B (en) * | 2018-05-04 | 2020-12-04 | 天津工业大学 | Method for treating textile printing and dyeing dye wastewater by using brown mushroom waste residues |
| CN109748350A (en) * | 2018-12-11 | 2019-05-14 | 广州普邦园林股份有限公司 | The adsorbent and restorative procedure of one heavy metal species and polycyclic aromatic hydrocarbons contaminated water body |
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Application publication date: 20170426 |