CN105347595A - Printing and dyeing wastewater treatment method and device - Google Patents
Printing and dyeing wastewater treatment method and device Download PDFInfo
- Publication number
- CN105347595A CN105347595A CN201510878131.4A CN201510878131A CN105347595A CN 105347595 A CN105347595 A CN 105347595A CN 201510878131 A CN201510878131 A CN 201510878131A CN 105347595 A CN105347595 A CN 105347595A
- Authority
- CN
- China
- Prior art keywords
- wastewater
- printing
- waste water
- dyeing
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- 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
Abstract
The invention provides a printing and dyeing wastewater treatment method. According to the method, wastewater is firstly intensively collected to a wastewater pool; then, the wastewater in the wastewater pool is pumped into a printing and dyeing boiler through a water pump to be reacted with flue gas and ash residues in the boiler, through the reaction between the flue gas and the ash residues with the wastewater, pigments in the wastewater are absorbed, and meanwhile, part of wastewater is subjected to high-temperature evaporation, so that, after the reaction, the color of the wastewater becomes light; the treated wastewater is discharged in a granite reaction tank at the water outlet of the boiler, and the alkalinity of the wastewater is neutralized through the acidity of the granite reaction tank, so that the wastewater discharged from the granite reaction tank becomes neutral; the neutral wastewater is treated through a Venturi scrubber.
Description
Technical field
The present invention relates to techniques of Dyeing Wastewater Treatment field, refer in particular to a kind for the treatment of method of printing and dying wastewater and treatment unit.
Background technology
As everyone knows, alkalescence treatment of Organic Wastewater, when not making alkali collection, neutralization removes the key that alkali is subsequent treatment process, the method that present society adopts is nothing more than being the methods such as acid adding (spent acid) neutralization, dilute with water, and acid neutralization makes business processes cost increase; Thin up, then make again subsequent treatment process be restricted.Thus, in the treatment process of organic waste water alkaline taking off waste water as ramie, the science of the neutralization method of alkali constrains the selection of enterprise to waste water treatment scheme.Traditional alkaline waste water process will be often by boiled-off waste water and pickling waste water and pickling waste waters and rear to be mixed with other waste water use biological method process.The process of these routines is all difficult to reach desirable treatment effect.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of structure is simple, treatment effect good, cost is low treatment method of printing and dying wastewater and treatment unit are provided.
For achieving the above object, technical scheme provided by the present invention is: a kind for the treatment of method of printing and dying wastewater, and described treatment process is for be first collected into wastewater disposal basin by Waste Water Centralized; Then by water pump, the waste water pump in wastewater disposal basin is cut reacts to the flue gas in printing and dyeing boiler and boiler, ash, carry out reacting the pigment absorption by waste water with waste water by flue gas, ash quarrel, simultaneously by a high temperature in wastewater evaporation part, waste water color after reacted is thin out, enter in the numb stone reactive tank of blow down mouth, the alkalescence in neutralized wastewater is carried out by the acidity of numb stone reactive tank, namely the waste water that fiber crops stone reactive tank is discharged become neutral, and neutral waste water is undertaken processing by Venturi scrubber again.
A kind of printing and dyeing wastewater processing equipment, it includes wastewater disposal basin, printing and dyeing boiler, reactive tank, wherein, wastewater disposal basin is connected with the water shoot of printing and dyeing workshop, lift pump one end is connected with wastewater disposal basin, the other end is connected with the dirt descending mechanism in printing and dyeing boiler, and printing and dyeing lower portion thereof is provided with by the reactive tank of fiber crops one-tenth made of stones, and reactive tank outlet is connected with Venturi scrubber.
Effect of the present invention is: absorb the pigment in waste water with dirt quarrel and ash quarrel in utilization boiler smoke, its investment is little, cost is low, and absorption pigment while to flue gas in remove SO2 and CO2, also the effect of dedusting can be played to flue gas, waste water after preliminary treatment collects reaction by numb stone reactive tank, and the alkalescence in waste water is neutralized further, and carrying out process finally by Venturi scrubber can reach emission standard.This programme, without the need to adding extra chemical substance, can not cause secondary pollution to environment, greatly reduce scale wastewater treatment operating costs.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Below in conjunction with institute's drawings attached, the invention will be further described, preferred embodiment of the present invention is: see accompanying drawing 1, printing and dyeing wastewater processing equipment described in the present embodiment includes wastewater disposal basin 1, printing and dyeing boiler 2, reactive tank 3, wherein, wastewater disposal basin 1 is connected with the water shoot of printing and dyeing workshop, lift pump 4 one end is connected with wastewater disposal basin 1, the other end is connected with the dirt descending mechanism 5 in printing and dyeing boiler 2, printing and dyeing boiler 2 bottom is provided with by the reactive tank 3 of fiber crops one-tenth made of stones, and reactive tank 3 outlet is connected with Venturi scrubber 6.
Employing said apparatus to the treatment process of dyeing waste water is: first Waste Water Centralized is collected into wastewater disposal basin; Then by water pump, the waste water pump in wastewater disposal basin is cut reacts to the flue gas in printing and dyeing boiler and boiler, ash, carry out reacting the pigment absorption by waste water with waste water by flue gas, ash quarrel, by dirt descending mechanism, flue dust in flue gas is removed more than 70%, alkali lye in simultaneously stability neutralized wastewater and pigment, dirt descending mechanism gas speed control is below the general speed of gas; Generally, can flue gas flow rate be controlled between 1.5m/s-3.0m/s, vapour-liquid ratio controls between 1.5-4.0; Waste water PH can be down between 7.5-8.5 from about 14, because the temperature in boiler reaches 600-800 degree, simultaneously can by a high temperature in wastewater evaporation part, waste water color after reacted is thin out, enter in the numb stone reactive tank of blow down mouth, carried out the alkalescence in neutralized wastewater by the acidity of numb stone reactive tank, namely the waste water that numb stone reactive tank is discharged become neutral, and neutral waste water is undertaken processing by Venturi scrubber again.Venturi throat design gas speed is 30m/s, and vapour-liquid ratio is 1.4, and waste water PH is down between 5.5-6.5 from about 13, and waste water through the process of the tertiary oxidation pool, can reach national secondary discharge standard after air-flotation process, anaerobic treatment.
The embodiment of the above is only the preferred embodiment of the present invention, not limits practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (2)
1. a treatment method of printing and dying wastewater, is characterized in that: described treatment process is for be first collected into wastewater disposal basin by Waste Water Centralized; Then by water pump, the waste water pump in wastewater disposal basin is cut reacts to the flue gas in printing and dyeing boiler and boiler, ash, carry out reacting the pigment absorption by waste water with waste water by flue gas, ash quarrel, simultaneously by a high temperature in wastewater evaporation part, waste water color after reacted is thin out, enter in the numb stone reactive tank of blow down mouth, the alkalescence in neutralized wastewater is carried out by the acidity of numb stone reactive tank, namely the waste water that fiber crops stone reactive tank is discharged become neutral, and neutral waste water is undertaken processing by Venturi scrubber again.
2. a printing and dyeing wastewater processing equipment, it is characterized in that: it includes wastewater disposal basin (1), printing and dyeing boiler (2), reactive tank (3), wherein, wastewater disposal basin (1) is connected with the water shoot of printing and dyeing workshop, lift pump (4) one end is connected with wastewater disposal basin (1), the other end is connected with the dirt descending mechanism (5) in printing and dyeing boiler (2), and printing and dyeing boiler (2) bottom is provided with by the reactive tank of fiber crops one-tenth made of stones (3), and reactive tank (3) outlet is connected with Venturi scrubber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878131.4A CN105347595A (en) | 2015-12-04 | 2015-12-04 | Printing and dyeing wastewater treatment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878131.4A CN105347595A (en) | 2015-12-04 | 2015-12-04 | Printing and dyeing wastewater treatment method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105347595A true CN105347595A (en) | 2016-02-24 |
Family
ID=55323691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510878131.4A Pending CN105347595A (en) | 2015-12-04 | 2015-12-04 | Printing and dyeing wastewater treatment method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105347595A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001894A (en) * | 2003-06-26 | 2005-01-07 | 아주환경 주식회사 | Dyeing Waste Water Recycling System |
| CN100999370A (en) * | 2007-01-22 | 2007-07-18 | 沅江市明星麻业有限公司 | Treatment method of high alkalinity organic waste water |
| CN101091874A (en) * | 2007-05-30 | 2007-12-26 | 胡俊华 | Method for flue gas desulfurization by using dyeing wastewater, and absorption tower |
-
2015
- 2015-12-04 CN CN201510878131.4A patent/CN105347595A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001894A (en) * | 2003-06-26 | 2005-01-07 | 아주환경 주식회사 | Dyeing Waste Water Recycling System |
| CN100999370A (en) * | 2007-01-22 | 2007-07-18 | 沅江市明星麻业有限公司 | Treatment method of high alkalinity organic waste water |
| CN101091874A (en) * | 2007-05-30 | 2007-12-26 | 胡俊华 | Method for flue gas desulfurization by using dyeing wastewater, and absorption tower |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |