CN1057041A - The deep treatment method of dyeing waste water and device thereof - Google Patents
The deep treatment method of dyeing waste water and device thereof Download PDFInfo
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- CN1057041A CN1057041A CN91107448A CN91107448A CN1057041A CN 1057041 A CN1057041 A CN 1057041A CN 91107448 A CN91107448 A CN 91107448A CN 91107448 A CN91107448 A CN 91107448A CN 1057041 A CN1057041 A CN 1057041A
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- waste water
- adsorption tower
- dyeing waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The deep treatment method of dyeing waste water and device belong to a technology with the biosorption process purification of organic waste water.
General physical chemical process and biochemical process can not be handled this lower concentration dyeing waste water that contains hard-degraded substance, and the pure-oxygen aeration method complex process, cost an arm and a leg and dangerous, are difficult to implement.
The invention solves the deficiency of prior art, adopt pressurization that air is dissolved in waste water, the oxygen that molten gas waste water discharges when entering the normal pressure adsorption tower is absorbed in a large number by biological carbon, under excess oxygen, waste water obtains advanced treatment, and the CODcr clearance reaches 60～70%, and percent of decolourization reaches 90～97%.
Adsorption tower apparatus structure of the present invention is simple, does not have airtight requirement, does not need anticorrosionly, does not need mud to reflux, and biological carbon need not regenerated in the tower, so operational management is very convenient.
Description
The present invention is a technology with the biosorption process purification of organic waste water.
The pollution problem of dyeing waste water is quite outstanding in dyeing.Be not only pollution substance and form complexity, and the water yield is big, the intractability height, general physical chemical method and biochemical process are difficult to prove effective.To the existing treatment of dyeing wastewater on-site investigation in the whole nation, be difficult to biodegradable dyestuff and auxiliary agent according to Ministry of Textile Industry, cause the CODcr(chemical oxygen demand (COD) chromium method of discharge water after routine is handled owing to wherein exist) reach 150～350mg/l, colourity reaches 50～200 times.Substantially exceed Shanghai City industrial wastewater discharge standard C ODcr＜100mg/l, the index of colourity＜50 times also surpasses standard GB 7888-89 " national composite wastewater emission standard " CODcr＜180mg/l, the set quota of colourity＜50 times.
The document of the same type with the present invention do not found in domestic and foreign literature retrieval through Science and Technology of Shanghai information institute.So far, have only pure-oxygen aeration method to can be used for handling the low-concentration organic waste water that this kind contains hard-degraded substance.This treatment process is that waste water and pure oxygen are entered in the aeration tank that is filled with active sludge simultaneously, after agitator fully stirs and mixes in the pond, enters settling tank, and the waste water of purification is discharged by water port, and mud flows into the aeration tank with blowback.This method is because of providing pure oxygen, for the dyestuff and the auxiliary agent of difficult degradation have been created good oxidizing condition.But this method needs oxygen generation system, and mud need reflux, and power consumption is high, and treatment unit requires airtight and anti-corrosion measure, also has the anti-problem such as expose to the sun of safety to be difficult to implement.
The object of the present invention is to provide a kind of simple, and the deep treatment method of dyeing waste water with low cost and device thereof.
The present invention is dissolved in dyeing waste water with air under pressure, make the dissolved oxygen in the waste water reach supersaturation, and decompression discharges then.Because the absorption of biological carbon height discharges oxygen, microorganism population mixture on its microbial film not only makes the chromophoric group of dye molecule open under excess oxygen, removes colourity, and makes the hardly degraded organic substance of generation continue oxidation, thereby reduce CODcr, reach the purpose of advanced treatment.
The deep treatment method of dyeing waste water of the present invention is under pressure air to be dissolved in dyeing waste water, and dissolved-air pressure is 2.8～3.5kg/cm
2, above-mentioned waste water is in non-pressurized adsorption tower from the bottom feeding, the volumetric loading of hard-degraded substance is 4～5kg CODcr/m
3Biologic packing material day, from bottom to top by biological carbon-coating and clear water layer, the biological carbon layer height is 55～70cm again, and the clear water layer height is more than the 70cm, and purifying waste water of obtaining discharged by the outlet on adsorption tower top.
The granularity of activated carbon is φ 1～1.5 * 3.0mm in the inventive method biological carbon.
The adsorption tower device that is used for the inventive method comprises a garden cylindricality body of the tower, and porous plate 7 is arranged at the bottom of this tower
(2), the middle part disposes 20 order metallic sieves 7
(5), overflow groove 7 is arranged at top
(6), baffle circle 7
(6)With treated water outlet 7
(7)
Apparatus of the present invention do not have airtight requirement, can open wide operation and contact with air.
The inventive method is compared with pure-oxygen aeration method, has more advantages.Utilize air to replace pure oxygen, simplify technology, reduce cost, be convenient to implement.
The inventive method is because pressure air-dissolving has improved the solubleness of oxygen in water greatly.When normal pressure discharged down, a large amount of oxygen was absorbed by biological carbon, and the oxygen absorbed of every liter of carbon reaches 10～20mg.Therefore, even when shutting down, also keep suitable dissolved oxygen in the system, compare with conventional method, the load that can withstand shocks goes slick.
In the inventive method, when microorganism during at degradation of organic substances, the synthetic new microorganism of inevitable some organism constantly thickens microbial film.But under the oxygen enrichment situation, microbial film upgrades fast, the rate of oxidation height.Because of hard-degraded substance and microbial film simultaneous oxidation, so the biological carbon in the system needn't be regenerated, life cycle is long.
The inventive method has improved the clearance of difficult for biological degradation dyestuff and auxiliary agent, and the COD clearance brings up to 60～70% from 15～25%, and percent of decolourization brings up to 90～97% from 30～50%.2KW compares with the pure-oxygen aeration method power consumption, reaches effect same, handles 1m
3Waste water, power consumption is 0.59 degree only.
Adsorption tower device of the present invention can open wide not airtightly, does not need anti-corrosion measure.When dyeing waste water behind the molten gas was reduced to normal pressure suddenly and contacted with biological carbon, biological carbon-coating began to expand, and wherein pollutent fully contacts with biological carbon in the waste water.For controlling the expanded level of biological carbon-coating, the tower middle part is provided with 20 order metallic sieves 7
(5), in establish garden tubular baffle circle 7
(8), the overflow groove 7 on tower top
(6)Be taper, cone angle is 52 °, so both has been convenient to cultivation, makes again less than the unlikely loss of 20 purpose active substances.The porous plate 7 of tower bottom
(2)Certain aperture and porosity are arranged, make distribute water and air reach even.
Further the present invention will be described for the contrast accompanying drawing below:
Be embodiments of the invention below:
Example 1: handling CODcr by the device of 100 tons of accompanying drawing day outputs is 200mg/l, and colourity is 256 times dyeing waste water.Its processing condition: dissolved-air pressure is 3kg/cm
2, the volumetric loading of hard-degraded substance is 5.65kg CODcr/m
3Biologic packing material day, the carbon-coating height is 55cm, and the clear water layer height is 70cm.Result is that the waste water COD cr after purifying is 60mg/l, and the CODcr clearance reaches 70%, and colourity is 4 times.
Example 2: handling CODcr by the device of 50 tons of accompanying drawing day outputs is 165mg/l, and colourity is 128 times dyeing waste water.Its processing condition: dissolved-air pressure is 3kg/cm
2, the volumetric loading of hard-degraded substance is: 4.11kg CODcr/m
3Biologic packing material day, the carbon-coating height is 55cm, and the clear water layer height is 70cm.Result is that the waste water COD cr after purifying is 70mg/l, and the CODcr clearance is 60%, and colourity is 4 times.
Example 3: handling CODcr by the device of 200 kilograms of accompanying drawing day outputs is 250mg/l, and colourity is 256 times dyeing waste water.Its processing condition: dissolved-air pressure is 2.8kg/cm
2, the volumetric loading of hard-degraded substance is 4.63kg CODcr/m
3Biologic packing material day, the carbon-coating height is 68cm, and the clear water layer height is 70cm.Result is that the waste water COD cr after purifying is 65mg/l, and the CODcr clearance is 60%, and colourity is 4 times.
The present invention also can be applicable to the advanced treatment of wastewater from silk reeling and organic solvent waste water.
Claims (8)
1, a kind of deep treatment method that is used for dyeing waste water is characterized in that under pressure air being dissolved in dyeing waste water, and dissolved-air pressure is 2.8～3.5kg/cm
2, above-mentioned waste water is in non-pressurized adsorption tower from the bottom feeding, the volumetric loading of hard-degraded substance is 4～5kgCODcr/m
3Biologic packing material day, from bottom to top by biological carbon-coating and clear water layer, the biological carbon layer height is 55～70cm again, and the clear water layer height is more than the 70cm, and what obtain purifies waste water by the outlet row mouth on adsorption tower top.
2, according to the deep treatment method of the described dyeing waste water of claim, it is characterized in that its optimum technology parameter is: dissolved-air pressure is 3kg/cm
2, the volumetric loading of hard-degraded substance is 5.65kg CODcr/m
3Biologic packing material day, the charcoal layer height is 55cm, and the clear water layer height is 70cm.
3, the deep treatment method of dyeing waste water according to claim 1 and 2, the granularity that it is characterized in that activated carbon in the biological carbon is φ 1～1.5 * 3.0mm.
4, a kind of adsorption tower device that is used for claim 1 method comprises a garden cylindricality body of the tower, and Ji Tezheng is that porous plate 7 is arranged at the bottom of this tower
(2), the middle part disposes 20 order metallic sieves 7
(5), overflow groove 7 is arranged at top
(6), baffle circle 7
(8)With treated water outlet 7
(7)
5, adsorption tower device according to claim 4 is characterized in that not having airtight requirement, can open wide operation and contact with air.
6, according to claim 4 or 5 described adsorption tower devices, it is characterized in that said porous plate 7
(2)Porosity be 20%, the aperture is φ 20mm.
7, adsorption tower device according to claim 6 is characterized in that said overflow groove 7
(6)The bottom is conical, and cone angle is 52 °.
8, adsorption tower device according to claim 7 is characterized in that said baffle circle 7
(8)Be the garden tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107448A CN1023997C (en) | 1991-07-11 | 1991-07-11 | Deep treatment of waste water from printing and dyeing mill and related apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107448A CN1023997C (en) | 1991-07-11 | 1991-07-11 | Deep treatment of waste water from printing and dyeing mill and related apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1057041A true CN1057041A (en) | 1991-12-18 |
| CN1023997C CN1023997C (en) | 1994-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91107448A Expired - Fee Related CN1023997C (en) | 1991-07-11 | 1991-07-11 | Deep treatment of waste water from printing and dyeing mill and related apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023997C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830579B (en) * | 2009-03-10 | 2012-05-30 | 广东绿园环境保护工程有限公司 | Printing and dyeing wastewater decoloring method and system |
| CN101700943B (en) * | 2009-11-19 | 2013-04-17 | 东华大学 | Printing and dyeing waste water advanced treatment and recovery method |
| CN103723817A (en) * | 2006-03-08 | 2014-04-16 | 西门子能源公司 | Wastewater treatment system and method |
| CN103864222A (en) * | 2012-12-10 | 2014-06-18 | 上海轻工业研究所有限公司 | Electroplating wastewater COD bioactive carbon treatment apparatus and method thereof |
| CN104003511A (en) * | 2014-06-09 | 2014-08-27 | 谢宇恒 | Seaculture water body oxygenating and purifying integrated device |
| CN104030432A (en) * | 2014-06-09 | 2014-09-10 | 谢宇恒 | Integrated oxygenation and purification method for marine culture water body |
| CN104876331A (en) * | 2015-06-11 | 2015-09-02 | 山东省环境保护科学研究设计院 | Biological-suspended-bed advanced wastewater treatment method |
| CN114671515B (en) * | 2022-04-26 | 2023-09-26 | 国网河北省电力有限公司电力科学研究院 | Floating filler for aerobic tank and preparation method and application thereof |
-
1991
- 1991-07-11 CN CN91107448A patent/CN1023997C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723817A (en) * | 2006-03-08 | 2014-04-16 | 西门子能源公司 | Wastewater treatment system and method |
| CN103723817B (en) * | 2006-03-08 | 2016-08-31 | 西门子能源公司 | Waste Water Treatment and method |
| CN101830579B (en) * | 2009-03-10 | 2012-05-30 | 广东绿园环境保护工程有限公司 | Printing and dyeing wastewater decoloring method and system |
| CN101700943B (en) * | 2009-11-19 | 2013-04-17 | 东华大学 | Printing and dyeing waste water advanced treatment and recovery method |
| CN103864222A (en) * | 2012-12-10 | 2014-06-18 | 上海轻工业研究所有限公司 | Electroplating wastewater COD bioactive carbon treatment apparatus and method thereof |
| CN103864222B (en) * | 2012-12-10 | 2016-02-10 | 上海轻工业研究所有限公司 | The biological activated carbon treatment facility of electroplating wastewater COD and method |
| CN104003511A (en) * | 2014-06-09 | 2014-08-27 | 谢宇恒 | Seaculture water body oxygenating and purifying integrated device |
| CN104030432A (en) * | 2014-06-09 | 2014-09-10 | 谢宇恒 | Integrated oxygenation and purification method for marine culture water body |
| CN104003511B (en) * | 2014-06-09 | 2016-01-20 | 谢宇恒 | A kind of marine culture water oxygenation and purification integrated device |
| CN104030432B (en) * | 2014-06-09 | 2016-03-09 | 谢宇恒 | A kind of marine culture water integration oxygenation purifying method |
| CN104876331A (en) * | 2015-06-11 | 2015-09-02 | 山东省环境保护科学研究设计院 | Biological-suspended-bed advanced wastewater treatment method |
| CN114671515B (en) * | 2022-04-26 | 2023-09-26 | 国网河北省电力有限公司电力科学研究院 | Floating filler for aerobic tank and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1023997C (en) | 1994-03-16 |
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