CN104086043A - Printing and dyeing wastewater treatment and recovery method - Google Patents
Printing and dyeing wastewater treatment and recovery method Download PDFInfo
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- CN104086043A CN104086043A CN201410283756.1A CN201410283756A CN104086043A CN 104086043 A CN104086043 A CN 104086043A CN 201410283756 A CN201410283756 A CN 201410283756A CN 104086043 A CN104086043 A CN 104086043A
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Abstract
The invention provides a printing and dyeing wastewater treatment and recovery method. The method mainly comprises the steps of (1) homogenizing water quantity and water quality; (2) hydrolyzing and acidifying; (3) treating in a biological contact oxidation pond; (4) precipitating; (5) treating in a biological aerated filter; (6) filtering by using a ceramic material filter; (7) separating by using a ultrafiltration membrane; and (8) treating with an ion exchange system. The whole method has a better treatment effect than that of conventional methods. Water treated by the method can be reused; only a small amount of and even no wastewater is produced and discharged into a river; cyclic utilization of the water is realized; and environment pollution is reduced, thereby benefiting mankind.
Description
Technical field
The present invention relates to the field of waste water treatment of yarn dyeing, relate in particular to a kind for the treatment of of dyeing wastewater reuse method.
Background technology
Dyeing waste water belongs to manage compared with refractory in trade effluent a kind of.Due to technology, economic dispatch reason, biology-physics improvement method that most adopts can only reach basic emission request.Although slightly decline in colourity, organic substance is just resolved into less material, these degradation production character are difficult to control also very difficult grasp, cannot guarantee environment not produce harm.Existing wastewater treatment mode ability can not meet present situation or need of production in the future soon, along with the attention of country to energy-saving and emission-reduction and environmental pollution, for our offspring, how to guarantee the minimizing discharge of dyeing waste water or do not discharge just to seem very necessary.
Summary of the invention
For existing deficiency, the object of this invention is to provide a kind for the treatment of of dyeing wastewater reuse method, adopt biological contact oxidation pond, a secondary BAF to carry out advanced treatment, after processing, by pottery, expect to filter separated with ultra-filtration membrane again, the water obtaining can utilize again, has solved the problem occurring in background technology.
The object of this invention is to provide a kind for the treatment of of dyeing wastewater reuse method, comprise the following steps:
Step 1: dyeing waste water is discharged in equalizing tank all and its water yield and water quality, and the water of equalizing tank enters in hydrolysis acidification pool and processes;
Step 2: the water in hydrolysis acidification pool is discharged in biological contact oxidation pond and carries out denitrogenation removal organism, and afterwards, waste water is discharged in settling tank and precipitates and add bleaching agent bleaching, and the complete waste water of precipitate and decolorization enters in air flotation pool;
Step 3: the precipitation of settling tank is discharged in sludge sump, sludge sump supernatant liquor is discharged in hydrolytic tank to be processed again, and after the mud in sludge sump carries out press filtration, outward transport is processed;
Step 4: enter into the transition of intermediate pool I in air flotation pool, enter into afterwards in BAF and further carry out biochemical treatment, the water being disposed enters into intermediate pool II;
Step 5: the water in intermediate pool II is made pottery successively, and material strainer filters and ultra-filtration membrane carries out membrane sepn, be discharged to afterwards in clean water basin stand-by, when preparing to use the water in clean water basin, line that it just can be put into production after ion exchange treatment system is processed is used.
Further improve and be: the biological contact oxidation pond in described step 2 and the BAF in step 3 all need to dry by gas blower is set.
Further improve and be: in described step 4, pottery material strainer and ultra-filtration membrane carry out backwash to it when filtering interval.
Further improve and be: in described step 2, biological contact oxidation pond is provided with at least 4 in parallel uses, in step 3, BAF is provided with at least 2 in parallel uses.
Beneficial effect of the present invention: present method first through all with its water yield and water quality, then the acidifying that is hydrolyzed improves to be convenient to carry out a biological contact oxidation pond after the biodegradability of waste water and to process and remove nitrogen and organism, precipitate afterwards and remove mud, supernatant liquor in mud can be proceeded to process again, reduced the discharge of water, the waste water of having removed mud carries out secondary BAF and further carries out biochemical treatment, effectively reduce the residual COD in water, integrate bio-oxidation and hold back suspended solids, saved post precipitation pond (second pond), the waste water of secondary biological treatment is filtering the suspended substance and the particle that further filter out in water separated with ultra-filtration membrane through pottery material, at pottery material, filter the gap separated with ultra filtration it is carried out to backwash, effectively avoid its putty, treated water enters clean water basin and through ion exchange system, processes and just can directly use before use, whole method is more excellent than former mode treatment effect, the water of processing through this kind of method can and re-use, and only produce and even do not produce on a small quantity discharge of wastewater in rivers, realized the recycle of water, reduced environmental pollution, promote the well-being of mankind.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.
The present embodiment provides a kind for the treatment of of dyeing wastewater reuse method, comprises the following steps:
Step 1: dyeing waste water is discharged in equalizing tank all and its water yield and water quality, and the water of equalizing tank enters in hydrolysis acidification pool and processes;
Step 2: the water in hydrolysis acidification pool is discharged in biological contact oxidation pond and carries out denitrogenation removal organism, and afterwards, waste water is discharged in settling tank and precipitates and add bleaching agent bleaching, and the complete waste water of precipitate and decolorization enters in air flotation pool;
Step 3: the precipitation of settling tank is discharged in sludge sump, sludge sump supernatant liquor is discharged in hydrolytic tank to be processed again, and after the mud in sludge sump carries out press filtration, outward transport is processed;
Step 4: enter into the transition of intermediate pool I in air flotation pool, enter into afterwards in BAF and further carry out biochemical treatment, the water being disposed enters into intermediate pool II;
Step 5: the water in intermediate pool II is made pottery successively, and material strainer filters and ultra-filtration membrane carries out membrane sepn, be discharged to afterwards in clean water basin stand-by, when preparing to use the water in clean water basin, line that it just can be put into production after ion exchange treatment system is processed is used.
Biological contact oxidation pond in step 2 and the BAF in step 3 all need to dry by gas blower is set; In step 4, pottery material strainer and ultra-filtration membrane carry out backwash to it when filtering interval; In described step 2, biological contact oxidation pond is provided with 4 in parallel uses, and in step 3, BAF is provided with 2 in parallel uses.
Present method first through all with its water yield and water quality, then the acidifying that is hydrolyzed improves to be convenient to carry out a biological contact oxidation pond after the biodegradability of waste water and to process and remove nitrogen and organism, precipitate afterwards and remove mud, supernatant liquor in mud can be proceeded to process again, reduced the discharge of water, the waste water of having removed mud carries out secondary BAF and further carries out biochemical treatment, effectively reduce the residual COD in water, integrate bio-oxidation and hold back suspended solids, saved post precipitation pond (second pond), the waste water of secondary biological treatment is filtering the suspended substance and the particle that further filter out in water separated with ultra-filtration membrane through pottery material, at pottery material, filter the gap separated with ultra filtration it is carried out to backwash, effectively avoid its putty, treated water enters clean water basin and through ion exchange system, processes and just can directly use before use, whole method is more excellent than former mode treatment effect, the water of processing through this kind of method can and re-use, and only produce and even do not produce on a small quantity discharge of wastewater in rivers, realized the recycle of water, reduced environmental pollution, promote the well-being of mankind.
Claims (4)
1. a treatment of dyeing wastewater reuse method, is characterized in that: comprise the following steps:
Step 1: dyeing waste water is discharged in equalizing tank all and its water yield and water quality, and the water of equalizing tank enters in hydrolysis acidification pool and processes;
Step 2: the water in hydrolysis acidification pool is discharged in biological contact oxidation pond and carries out denitrogenation removal organism, and afterwards, waste water is discharged in settling tank and precipitates and add bleaching agent bleaching, and the complete waste water of precipitate and decolorization enters in air flotation pool;
Step 3: the precipitation of settling tank is discharged in sludge sump, sludge sump supernatant liquor is discharged in hydrolytic tank to be processed again, and after the mud in sludge sump carries out press filtration, outward transport is processed;
Step 4: enter into the transition of intermediate pool I in air flotation pool, enter into afterwards in BAF and further carry out biochemical treatment, the water being disposed enters into intermediate pool II;
Step 5: the water in intermediate pool II is made pottery successively, and material strainer filters and ultra-filtration membrane carries out membrane sepn, be discharged to afterwards in clean water basin stand-by, when preparing to use the water in clean water basin, line that it just can be put into production after ion exchange treatment system is processed is used.
2. a kind for the treatment of of dyeing wastewater reuse method as claimed in claim 1, is characterized in that: the biological contact oxidation pond in described step 2 and the BAF in step 3 all need to dry by gas blower is set.
3. a kind for the treatment of of dyeing wastewater reuse method as claimed in claim 1, is characterized in that: in described step 4, pottery material strainer and ultra-filtration membrane carry out backwash to it when filtering interval.
4. a kind for the treatment of of dyeing wastewater reuse method as claimed in claim 1, is characterized in that: in described step 2, biological contact oxidation pond is provided with at least 4 in parallel uses, and in step 3, BAF is provided with at least 2 in parallel uses.
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| CN201410283756.1A CN104086043B (en) | 2014-06-24 | 2014-06-24 | A kind for the treatment of of dyeing wastewater reuse method |
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| CN201410283756.1A CN104086043B (en) | 2014-06-24 | 2014-06-24 | A kind for the treatment of of dyeing wastewater reuse method |
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| CN104086043A true CN104086043A (en) | 2014-10-08 |
| CN104086043B CN104086043B (en) | 2016-05-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045023A (en) * | 2016-07-31 | 2016-10-26 | 深圳市深联众诚环保技术工程有限公司 | System and method for sewage treatment |
| CN107352740A (en) * | 2017-07-27 | 2017-11-17 | 张家港市双盈印染有限公司 | A kind of printing and dyeing waste water advanced treatment recovery method |
| CN107365014A (en) * | 2017-06-29 | 2017-11-21 | 芜湖富春染织股份有限公司 | A kind of method for reclaiming waste water of yarn dip-dye liquid |
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| CN101070216A (en) * | 2007-06-18 | 2007-11-14 | 华南理工大学 | Integrated ozone and aeration biological filtering pool water treatment apparatus and method |
| CN101234814A (en) * | 2008-03-05 | 2008-08-06 | 东华大学 | Printing waste water advanced treatment and reusing method adapted for medium and small-sized printing plant |
| CN101700943A (en) * | 2009-11-19 | 2010-05-05 | 东华大学 | Printing and dyeing waste water advanced treatment recovery method |
| CN102180564A (en) * | 2011-03-17 | 2011-09-14 | 东华大学 | Highly-efficient aeration biological filter applied to advanced printing and dyeing wastewater treatment and treatment method thereof |
| CN103523996A (en) * | 2013-10-18 | 2014-01-22 | 东华大学 | Treatment device and method of printing and desizing mixed wastewater |
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2014
- 2014-06-24 CN CN201410283756.1A patent/CN104086043B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070216A (en) * | 2007-06-18 | 2007-11-14 | 华南理工大学 | Integrated ozone and aeration biological filtering pool water treatment apparatus and method |
| CN101234814A (en) * | 2008-03-05 | 2008-08-06 | 东华大学 | Printing waste water advanced treatment and reusing method adapted for medium and small-sized printing plant |
| CN101700943A (en) * | 2009-11-19 | 2010-05-05 | 东华大学 | Printing and dyeing waste water advanced treatment recovery method |
| CN102180564A (en) * | 2011-03-17 | 2011-09-14 | 东华大学 | Highly-efficient aeration biological filter applied to advanced printing and dyeing wastewater treatment and treatment method thereof |
| CN103523996A (en) * | 2013-10-18 | 2014-01-22 | 东华大学 | Treatment device and method of printing and desizing mixed wastewater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045023A (en) * | 2016-07-31 | 2016-10-26 | 深圳市深联众诚环保技术工程有限公司 | System and method for sewage treatment |
| CN107365014A (en) * | 2017-06-29 | 2017-11-21 | 芜湖富春染织股份有限公司 | A kind of method for reclaiming waste water of yarn dip-dye liquid |
| CN107352740A (en) * | 2017-07-27 | 2017-11-17 | 张家港市双盈印染有限公司 | A kind of printing and dyeing waste water advanced treatment recovery method |
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| CN104086043B (en) | 2016-05-25 |
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Address after: 241008 Wuhu economic and Technological Development Zone, North Industrial Park, Anhui Patentee after: Wuhu Fuchun dyeing Limited by Share Ltd Address before: 241008 Wuhu economic and Technological Development Zone, North Industrial Park, Anhui Patentee before: Wuhu Fuchun Dye and Weave Co., Ltd. |