CN102976461A - Agent for treating printing and dyeing wastewater - Google Patents
Agent for treating printing and dyeing wastewater Download PDFInfo
- Publication number
- CN102976461A CN102976461A CN2012105386729A CN201210538672A CN102976461A CN 102976461 A CN102976461 A CN 102976461A CN 2012105386729 A CN2012105386729 A CN 2012105386729A CN 201210538672 A CN201210538672 A CN 201210538672A CN 102976461 A CN102976461 A CN 102976461A
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- dyeing wastewater
- agent
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- dyeing
- medicament
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Abstract
The invention discloses an agent for treating printing and dyeing wastewater, comprising the following steps of: adding the agent provided by the invention to the printing and dyeing wastewater, wherein the addition quantity of the agent is 100-300 mg/L; regulating the pH to about 9.0; quickly stirring at the speed of 500 r/min for 3-5 minutes; and then stirring for 10-15 minutes at the speed of 80-100 r/min; and standing and settling. The printing and dyeing wastewater treated by the agent provided by the invention is colorless and tasteless and minimized in COD (Chemical Oxygen Demand) value; the water after being treated can be reused; in the treatment process, the generation of organic chloride can be inhibited without generating secondary pollution on the environment; and the agent is low in cost, simple to operate and convenient to popularize.
Description
Technical field
The invention belongs to the techniques of Dyeing Wastewater Treatment field in the environmental technology field, be specifically related to a kind for the treatment of of dyeing wastewater medicament.
Background technology
The dyeing waste water complicated component, color is dark, and quantity discharged is large, is one of domestic and international reluctant trade effluent always.The material resources that cost a lot of money of people and financial resources are to solve this difficult problem for this reason.Mainly contain biochemical process in the treatment process of existing processing dyeing and printing sewage, electrolytic process, and photocatalytic method.The biochemical process floor space is large, and narrow application range, effect are also undesirable; Although the electrolytic process effect is better than biochemical process, energy consumption is large, Difficulty.Photochemical catalysis be owing to can make the organism permineralization, do not have secondary pollution and gets most of the attention.
Patent CN1428301 discloses a kind of water conditioner, and this treatment agent contains chloric acid class and salt and water-soluble aluminum salt, when processing waste water, suspended substance and colloidal particle in the flocculation water, reduce COD thereby reach, the effect of BOD and colourity reaches the function of deodorizing simultaneously.Therewith similar patent also have a lot, CN85104351A for example, CN1063469QA etc.With the flocculation agent treatment of dyeing and printing, still produce effect for the precipitation suspended substance, and for reducing COD, the effect of BOD and colourity is unsatisfactory, particularly deodorizing effect is poorer, can bring in addition secondary pollution, fundamentally the contaminated solution problem.
Summary of the invention
The object of the invention is for the problems referred to above, a kind for the treatment of of dyeing wastewater medicament that reduces foreign matter content in the dyeing waste water that proposes.
For achieving the above object, technical scheme of the present invention is: a kind for the treatment of of dyeing wastewater medicament is provided, and its preparation method is:
(1) gets 50～60g polymerize aluminum chloride and place the 500mL there-necked flask, add 80～100mL water and constantly stir;
(2) increase the temperature to 40～50 ℃, add 5～8g sal epsom, 3～5g urea and 1～3g Cetyltrimethylammonium bromide, constantly stir, and continue to be warmed up to 75～85 ℃;
(3) fully react 1～2 hour after, add 5～10g iron(ic) chloride, leave standstill, slaking got final product in 3～4 hours.
A kind for the treatment of of dyeing wastewater medicament, its application method is: the medicament of getting above-mentioned preparation joins in the dyeing waste water, and the amount of adding is 100～300mg/L, and regulate about pH to 9.0, with 500r/min rapid stirring 3～5min, stir 10～15min with 80～100r/min again, staticly settle.
Beneficial effect of the present invention: the present invention not only can sustainable processing colourity, the equal higher dyeing waste water of concentration, make simultaneously dyeing waste water after the processing reach colourless, tasteless, COD value drop to minimum, but the water quality iterative cycles utilization after the processing; In treating processes, can stop the generation of organic chloride, do not produce the secondary pollution to environment; Cost of the present invention is low, and is simple to operate, is convenient to promote.
Embodiment
Example 1
Get the 50g polymerize aluminum chloride and place the 500mL there-necked flask, add 80mL water and constantly stir; Increase the temperature to 40 ℃, add 5g sal epsom, 3g urea and 1g Cetyltrimethylammonium bromide, constantly stir, and continue to be warmed up to 75 ℃; Fully reaction added 5g iron(ic) chloride after 1 hour, left standstill slaking 3 hours; The medicament of getting above-mentioned preparation joins in the dyeing waste water, and the amount of adding is 100mg/L, and regulates pH to 9.0, with 500r/min rapid stirring 3min, stir 10min with 80r/min again, staticly settle rear effluent COD concentration and be down to 5.06mg/L by 253mg/L, clearance reaches 98%, meets emission standard.
Example 2
Get the 55g polymerize aluminum chloride and place the 500mL there-necked flask, add 90mL water and constantly stir; Increase the temperature to 45 ℃, add 6g sal epsom, 4g urea and 2g Cetyltrimethylammonium bromide, constantly stir, and continue to be warmed up to 80 ℃; Fully reaction added 8g iron(ic) chloride after 1.5 hours, left standstill slaking 3.5 hours; The medicament of getting above-mentioned preparation joins in the dyeing waste water, the amount that adds is 200mg/L, and adjusting pH to 8.5, with 500r/min rapid stirring 5min, stir 13min with 90r/min again, staticly settle rear effluent COD concentration and be down to 22.5mg/L by 1500mg/L, clearance reaches 98.5%, meets emission standard.
Example 3
Get the 60g polymerize aluminum chloride and place the 500mL there-necked flask, add 100mL water and constantly stir; Increase the temperature to 50 ℃, add 8g sal epsom, 5g urea and 3g Cetyltrimethylammonium bromide, constantly stir, and continue to be warmed up to 85 ℃; Fully reaction added 10g iron(ic) chloride after 2 hours, left standstill slaking 4 hours; The medicament of getting above-mentioned preparation joins in the dyeing waste water, the amount that adds is 300mg/L, and adjusting pH to 10.0, with 500r/min rapid stirring 4min, stir 15min with 100r/min again, staticly settle rear effluent COD concentration and be down to 25mg/L by 2500mg/L, clearance reaches 99%, meets emission standard.
Claims (2)
1. treatment of dyeing wastewater medicament is characterized in that the preparation method is:
(1) gets 50～60g polymerize aluminum chloride and place the 500mL there-necked flask, add 80～100mL water and constantly stir;
(2) increase the temperature to 40～50 ℃, add 5～8g sal epsom, 3～5g urea and 1～3g Cetyltrimethylammonium bromide, constantly stir, and continue to be warmed up to 75～85 ℃;
(3) fully react 1～2 hour after, add 5～10g iron(ic) chloride, leave standstill, slaking got final product in 3～4 hours.
2. described a kind for the treatment of of dyeing wastewater medicament according to claim 1, it is characterized in that application method is: the medicament of getting above-mentioned preparation joins in the dyeing waste water, the amount that adds is 100～300mg/L, and regulate about pH to 9.0, with 500r/min rapid stirring 3～5min, stir 10～15min with 80～100r/min again, staticly settle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105386729A CN102976461A (en) | 2012-12-11 | 2012-12-11 | Agent for treating printing and dyeing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105386729A CN102976461A (en) | 2012-12-11 | 2012-12-11 | Agent for treating printing and dyeing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102976461A true CN102976461A (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105386729A Pending CN102976461A (en) | 2012-12-11 | 2012-12-11 | Agent for treating printing and dyeing wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN102976461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693696A (en) * | 2013-12-16 | 2014-04-02 | 常熟市天赢印染有限公司 | Preparation method of printing and dyeing wastewater treatment agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113028A (en) * | 2007-06-07 | 2008-01-30 | 上海忠诚环保科技有限公司 | Method for preparing demulsification clarifier |
| CN101759266A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Preparation method of compound coagulant |
| CN102464389A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
| CN102633338A (en) * | 2012-04-28 | 2012-08-15 | 江苏双净净化科技有限公司 | PVA (polyvinyl alcohol) desizing wastewater treating agent and preparation method thereof |
-
2012
- 2012-12-11 CN CN2012105386729A patent/CN102976461A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113028A (en) * | 2007-06-07 | 2008-01-30 | 上海忠诚环保科技有限公司 | Method for preparing demulsification clarifier |
| CN101759266A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Preparation method of compound coagulant |
| CN102464389A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
| CN102633338A (en) * | 2012-04-28 | 2012-08-15 | 江苏双净净化科技有限公司 | PVA (polyvinyl alcohol) desizing wastewater treating agent and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693696A (en) * | 2013-12-16 | 2014-04-02 | 常熟市天赢印染有限公司 | Preparation method of printing and dyeing wastewater treatment agent |
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Application publication date: 20130320 |