CN103803696A - Advanced decolorizing method for paper-making waste water secondary biochemical effluent - Google Patents
Advanced decolorizing method for paper-making waste water secondary biochemical effluent Download PDFInfo
- Publication number
- CN103803696A CN103803696A CN201410071504.2A CN201410071504A CN103803696A CN 103803696 A CN103803696 A CN 103803696A CN 201410071504 A CN201410071504 A CN 201410071504A CN 103803696 A CN103803696 A CN 103803696A
- Authority
- CN
- China
- Prior art keywords
- secondary biochemical
- biochemical effluent
- ozone
- paper
- paper waste
- 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
Links
Abstract
The invention provides an advanced decolorizing method for paper-making waste water secondary biochemical effluent. The paper-making waste water secondary biochemical effluent at the temperature of 16-21 DEG C is sprayed from top to bottom, ozone gas reversely runs and contacts and reacts with the paper-making waste water secondary biochemical effluent, wherein the concentration ratio of the ozone to the paper-making waste water secondary biochemical effluent CODCr is (40.0-75.0)mg/L:130.0-210.0mg/L, the contact time of the ozone and the paper-making waste water secondary biochemical effluent is 0.50-1.00h. The consumption of the ozone for oxidation treatment is properly reduced, the reaction time is properly reduced, and the treatment cost for treating the paper-making waste water secondary biochemical effluent by the ozone oxidation is greatly reduced. Moreover, the organic matters are removed by cooperation of air-flotation and air bubbles coagulation, the ozone feeding rate is reduced, the operation cost is reduced, and the method has wider popularization and application prospect in the advanced treatment of the paper-making waste water.
Description
Technical field
The invention belongs to paper waste processing technology field, relate in particular to a kind of method of paper waste secondary biochemical effluent degree of depth decolouring.
Background technology
In the processing of trade effluent, ozone is adopted widely, and this is mainly owing to replacing chemical method processing drinking water and waste water with Ozonation, can not bring harmful Gram pathogenic agent, also in the work-ing life that can not reduce equipment, working cost is also lower.Application of Ozone Oxidation in Textile Wastewater Treatment, can open the unsaturated link(age) of dyestuff, finally generates organic acid and the less material of aldehydes equimolecular, makes it to lose colour developing ability, and reaches the object of decolouring.Ozone is for the processing of the color development waste water of pulping and paper-making, need be in water residual other chemical substances, water quality after treatment is good, operation is simple.
But ozonation technology is processed in the process of trade effluent, still has some shortcomings, is specially:
(1) because ozone self decomposes, dissolves the reasons such as utilization ratio, ozone utilization rate is not high;
(2) selectivity of ozone oxidation is stronger, and it is lower to hardly degraded organic substance clearance, need to use catalyzer, causes ozone oxidation dosage large, has increased running cost.
Summary of the invention
A kind of method that the object of the present invention is to provide paper waste secondary biochemical effluent degree of depth decolouring, is intended to solve present biological secondary treatment yielding water COD
crwith colourity can not qualified discharge, the high problem of processing costs.
The present invention realizes like this, a kind of method of paper waste secondary biochemical effluent degree of depth decolouring, comprise the following steps: the paper waste secondary biochemical effluent of 16～21 ℃ of water temperatures is from top to bottom sprayed, described ozone gas antikinesis and with paper waste secondary biochemical effluent contact reacts, described ozone and paper waste secondary biochemical effluent COD
crconcentration ratio be (40.0～75.0) mg/L:130.0～210.0mg/L, be 0.50～1.00h the duration of contact of described ozone and paper waste secondary biochemical effluent; Wherein, described ozone add-on guarantees paper waste secondary biochemical to carry out low-level oxidation, in described ozone uphill process, forms air supporting, removes organism by the bubble coagulation producing.
Preferably, described paper waste secondary biochemical effluent control index of water outlet after ozonize is colourity, pH and UV254, and colourity is down to 30～45, pH by 80～150 and is down to 7.80～8.50, UV2540.80～1.00 by 7.80～8.50 and is down to 0.40～0.50.
Preferably, the colourity of described paper waste secondary biochemical effluent is 80～150 times.
Preferably, described ozone by ozonizer using pure oxygen as the source of the gas of preparing ozone.
The present invention overcomes the deficiencies in the prior art, and a kind of method of paper waste secondary biochemical effluent degree of depth decolouring is provided, by ozone being added in the paper waste secondary biochemical effluent of 16～21 ℃ of water temperatures, wherein, described ozone and paper waste secondary biochemical effluent COD
crconcentration ratio be (40.0～75.0) mg/L:130.0～210.0mg/L, be 0.50～1.00h the duration of contact of described ozone and paper waste secondary biochemical effluent.In the present invention, ozone low-level oxidation is ozone low-level oxidation in conjunction with the core of air supporting decolouring technology, the novelty of technology is reflected on " ozone low-level oxidation ", the oxidising process of By Ozone is controlled to " oxygenolysis chromophoric group, promote throwing out ", and not to obtain maximum organic matter removal effect as target, the ozone consumption of oxide treatment suitably reduces, reaction times suitably reduces, reduce greatly the processing cost of ozone Oxidation Treatment pulping and paper-making secondary biochemical effluent, make this technology aspect paper waste advanced treatment, there is popularizing application prospect more widely.The innovation of waste water treatment process aspect is reflected in the combination process of " ozone low-level oxidation "+" air supporting ", " oxygenolysis chromophoric group, the promotion throwing out " of Ozonation is combined with the technical superiority of " bubble coagulation is removed organism " two aspects of By Bubble-floating Method, carry out degree of depth decolouring, target is that suitably reducing ozone adds rate, reduces working cost.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of method of generated by making paper with wheat straws waste water secondary biochemical effluent degree of depth decolouring, comprise the following steps: the paper waste secondary biochemical effluent of 16～21 ℃ of water temperatures is from top to bottom sprayed, described ozone gas antikinesis and with paper waste secondary biochemical effluent contact reacts, ozone concn is (40.0～75.0) mg/L, generated by making paper with wheat straws waste water secondary biochemical effluent COD
crconcentration is that 130.0～210.0mg/L, colourity are 80～150 times, and be 0.50～1.00h the duration of contact of ozone and paper waste secondary biochemical effluent; Wherein, described ozone add-on guarantees paper waste secondary biochemical to carry out low-level oxidation, in described ozone uphill process, forms air supporting, removes organism by the bubble coagulation producing.
More specifically, described paper waste secondary biochemical effluent control index of water outlet after ozonize is colourity, pH and UV254, colourity is down to 30～45, pH by 80～150 and is down to 7.80～8.50, UV2540.80～1.00 by 7.80～8.50 and is down to 0.40～0.50.
In embodiments of the present invention, paper waste secondary biochemical effluent is to wash the bio-chemical effluent that careless water obtains after precipitation, acidication and aerobic biochemical art breading.
Decompose, dissolve the reasons such as utilization ratio due to self, ozone utilization rate is not high, how to reduce ozone oxidation cost key technical problem urgently to be resolved hurrily, the present invention from top to bottom sprays by paper waste secondary biochemical effluent, described ozone gas antikinesis and with paper waste secondary biochemical effluent contact reacts.
The embodiment of the present invention is utilized ozone having compared with strong selectivity materials such as lignins, and to other hardly degraded organic substance removal effect measured response feature in pulping and paper-making secondary biochemical effluent, by test data analyzer, ozone oxidation is controlled at and is realized the ozone direct oxidation decolouring stage, and not to obtain maximum organic removal rate as target (this part organism mainly relies on follow-up air flotation cell to remove), thereby obtain to reduce ozone oxidation dosage the effect of removing preferably colourity, reduce running cost.
To detecting by aforesaid method water outlet after treatment, wherein, COD
crfor 50mg/l, BOD
5for 8mg/l, SS is 10mg/l, and colourity is 30 times, and pH is 8.0.
In embodiments of the present invention, adopt the inventive method to process Jiang Zhi associated enterprises secondary biochemical, at secondary biochemical effluent COD
crwhen concentration and colourity are 130.0～210.0mg/L and 80～150 times, ozone dosage 40.0～75.0mg/L(is for the dosage comparison of secondary effluent and 100～200mg/L, this is a low a little dosage), duration of contact is while being 0.50～1.00h, COD
crbe respectively 20.0～33.0% and 50.0～80.0%, COD with the clearance of colourity
crthe removal that comprises follow-up air supporting processing lower than 60.0mg/L(respectively with colourity) and 30 times.
In the time that dosage is 150.0mg/L, comprise electricity cost and oxygen expense, ozonize cost is 2.2 yuan/m
3, in the time that dosage is 50.0mg/L, ozonize cost is 0.7 yuan/m
3.After adopting the inventive method to process, materialization is processed flocculation agent dosage used and generally can be reduced to some extent, if count the flocculation agent expense of minimizing, and processing costs-0.3 of increase yuan/m
3, advanced treatment comprehensive cost is about 1.00 yuan/m
3, lower than other advanced treatment technical finesse cost.
Embodiment 2
75.0mg/L ozone, the COD of 21 ℃ of water temperatures
crconcentration is that 130.0mg/L, colourity are 80 times of paper waste secondary biochemical effluents, and all the other are with embodiment 1.
To detecting by the water outlet after treatment of embodiment 2 method, wherein, COD
crfor 40mg/l, BOD
5for 7mg/l, SS is 15mg/l, and colourity is 25 times, and pH is 6.
Compare and the shortcoming and defect of prior art, the present invention has following beneficial effect: the present invention's water quality after treatment is good, can reach effluent quality emission standard, and can effectively reduce ozone injected volume, has good economical efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. the method for a paper waste secondary biochemical effluent degree of depth decolouring, it is characterized in that, comprise the following steps: the paper waste secondary biochemical effluent of 16～21 ℃ of water temperatures is from top to bottom sprayed, described ozone gas antikinesis and with paper waste secondary biochemical effluent contact reacts, described ozone and paper waste secondary biochemical effluent COD
crconcentration ratio be (40.0～75.0) mg/L:130.0～210.0mg/L, be 0.50～1.00h the duration of contact of described ozone and paper waste secondary biochemical effluent; Wherein, described ozone add-on guarantees paper waste secondary biochemical to carry out low-level oxidation, in described ozone uphill process, forms air supporting, removes organism by the bubble coagulation producing.
2. the method for paper waste secondary biochemical effluent degree of depth decolouring as claimed in claim 1, it is characterized in that, described paper waste secondary biochemical effluent control index of water outlet after ozonize is colourity, pH and UV254, colourity is down to 30～45 by 80～150, pH is down to 7.80～8.50, UV2540.80～1.00 by 7.80～8.50 and is down to 0.40～0.50.
3. the method for paper waste secondary biochemical effluent degree of depth decolouring as claimed in claim 2, is characterized in that, the colourity of described paper waste secondary biochemical effluent is 80～150 times.
4. the method for the paper waste secondary biochemical effluent degree of depth as claimed in claim 3 decolouring, is characterized in that, described ozone by ozonizer using pure oxygen as the source of the gas of preparing ozone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071504.2A CN103803696A (en) | 2014-02-28 | 2014-02-28 | Advanced decolorizing method for paper-making waste water secondary biochemical effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071504.2A CN103803696A (en) | 2014-02-28 | 2014-02-28 | Advanced decolorizing method for paper-making waste water secondary biochemical effluent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103803696A true CN103803696A (en) | 2014-05-21 |
Family
ID=50701147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071504.2A Pending CN103803696A (en) | 2014-02-28 | 2014-02-28 | Advanced decolorizing method for paper-making waste water secondary biochemical effluent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103803696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362462A (en) * | 2020-03-26 | 2020-07-03 | 四川恒泰环境技术有限责任公司 | Advanced treatment method for papermaking wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005169304A (en) * | 2003-12-12 | 2005-06-30 | Canon Inc | Method of treating high concentration colored organic waste water |
| CN1644519A (en) * | 2004-12-27 | 2005-07-27 | 西安建筑科技大学 | Air floated water treating separators |
| KR20080009985A (en) * | 2006-07-25 | 2008-01-30 | 심종섭 | Wastewayer treatment device and method high pressure advanced oxidation process(hpaop) with unreacted ozone reusing system |
| CN102642950A (en) * | 2012-05-04 | 2012-08-22 | 郑州大学 | Device utilizing ozone to carry out oxidization decoloration treatment |
| CN202415328U (en) * | 2011-12-22 | 2012-09-05 | 宁波侨泰兴纺织有限公司 | Dyeing and finishing sewage treatment system used for textile process |
-
2014
- 2014-02-28 CN CN201410071504.2A patent/CN103803696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005169304A (en) * | 2003-12-12 | 2005-06-30 | Canon Inc | Method of treating high concentration colored organic waste water |
| CN1644519A (en) * | 2004-12-27 | 2005-07-27 | 西安建筑科技大学 | Air floated water treating separators |
| KR20080009985A (en) * | 2006-07-25 | 2008-01-30 | 심종섭 | Wastewayer treatment device and method high pressure advanced oxidation process(hpaop) with unreacted ozone reusing system |
| CN202415328U (en) * | 2011-12-22 | 2012-09-05 | 宁波侨泰兴纺织有限公司 | Dyeing and finishing sewage treatment system used for textile process |
| CN102642950A (en) * | 2012-05-04 | 2012-08-22 | 郑州大学 | Device utilizing ozone to carry out oxidization decoloration treatment |
Non-Patent Citations (1)
| Title |
|---|
| 水工业市场杂志: "《"十一五"水处理关键技术与工程应用案例大全》", 31 October 2010, 中国环境科学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362462A (en) * | 2020-03-26 | 2020-07-03 | 四川恒泰环境技术有限责任公司 | Advanced treatment method for papermaking wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mantzavinos et al. | Enhancement of biodegradability of industrial wastewaters by chemical oxidation pre‐treatment | |
| Murali et al. | Evaluation of integrated anaerobic–aerobic biofilm reactor for degradation of azo dye methyl orange | |
| Zhang et al. | Combination of ozonation and biological aerated filter (BAF) for bio-treated coking wastewater | |
| Radi et al. | The comparison of sonochemistry, electrochemistry and sonoelectrochemistry techniques on decolorization of CI Reactive Blue 49 | |
| CN205328814U (en) | Handle alkaline dye wastewater's device | |
| CN106565036A (en) | Method for catalytic ozonation and COD and total nitrogen removal from waste water at same time | |
| CN103613254B (en) | The deep treatment method of fine chemistry industry garden sewage work organic wastewater with difficult degradation thereby | |
| CN104291532B (en) | A kind of 2-Naphthol production wastewater treatment method and apparatus | |
| CN105693019A (en) | System and method for treating wastewater containing nitrobenzene, aniline and cyclohexylamine | |
| CN106830436B (en) | Pre-oxidation method for drinking water treatment | |
| CN105417851B (en) | Treatment method of printing and dying wastewater and its Compound biological flocculant preparation method | |
| CN103086497A (en) | Method for realizing deep treatment of coking wastewater by utilizing calcium hypochlorite | |
| CN205590513U (en) | Combination unit who floats advanced waste treatment is washed to clothing | |
| CN102329050B (en) | Process and device for efficiently treating wheat straw pulp intermediate wastewater by alkaline method | |
| CN103803696A (en) | Advanced decolorizing method for paper-making waste water secondary biochemical effluent | |
| CN205152010U (en) | Industry pharmacy effluent disposal system | |
| CN204111543U (en) | A kind of 2-Naphthol production wastewater treatment equipment | |
| CN102849877A (en) | Method for purifying high concentrated organic wastewater by electrically assisted iron-carbon bed | |
| CN101830601A (en) | Biological treatment system and method thereof specific to industrial wastewater of fluorescent brightener | |
| CN109467179A (en) | A kind of method of antibiotic in short wavelength UV compound advanced oxidation removal water body | |
| CN205313328U (en) | Variety printing and dyeing wastewater's wind path processing system | |
| CN103910462B (en) | Containing the biochemical processing method of pyridines sewage | |
| CN204417285U (en) | A kind of novel acid Sewage treatment systems | |
| CN204162576U (en) | A kind for the treatment of unit of acid waste water | |
| CN107381785B (en) | Anthraquinone dye wastewater treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |