CN101215070A - Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper - Google Patents
Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper Download PDFInfo
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- CN101215070A CN101215070A CNA2008100258408A CN200810025840A CN101215070A CN 101215070 A CN101215070 A CN 101215070A CN A2008100258408 A CNA2008100258408 A CN A2008100258408A CN 200810025840 A CN200810025840 A CN 200810025840A CN 101215070 A CN101215070 A CN 101215070A
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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 invention discloses a biotreatment method for carbon source co-metabolic of persistent organic pollutants included in wastepaper for paper-making, which comprises (1) glucose solution, phenol solution and methanol are added to a distribution reservoir as cometabolism carbon source, and are mixed adequately with wastepaper for paper-making, then enter a hydrolysis or aerobic cometabolism reaction tank, wherein the concentrations of the three materials are respectively 8-12g/L, 80-120mg/L and 99.5 percent. (2) After hydrolysis or aerobic cometabolism reaction in the hydrolysis or aerobic cometabolism reaction tank, the mixture enters a contacting oxidation cometabolism reaction tank. (3) After the glucose solution with concentration of 8-12g/L is added to the contacting oxidation cometabolism reaction tank as cometabolism carbon source, the contacting oxidation cometabolism reaction is produced. (4) The wastewater comes out from the contacting oxidation cometabolism reaction tank, enters a secondary sedimentation tank or is recycled. The invention achieves a goal of effectively removing persistent organic matters which are difficult to degrade in the wastepaper for paper-making, and the treated wastewater can be recycled.
Description
Technical field
The present invention relates to sewage disposal technology, the carbon source synergistic metabolism biological treatment method of persistence organic pollutant in particularly a kind of waste paper making wastewater.
Background technology
Paper industry is China's major industry source of pollution always, and the pollution that its waste water caused accounts for 1/3rd of all industrial wastewater pollutions.The waste paper making wastewater discharging is mainly derived from washing, screening, concentrates operations such as reaching paper machine white water, the characteristics of this class waste water are: 1, wastewater flow rate is big, mainly contain hemicellulose in the waste water, xylogen, inorganic acid salt, fiber fines, pollutents such as mineral filler and printing ink, dyestuff, pollutent indexs such as SS, COD, BOD, petroleum-type, volatile phenol, colourity all substantially exceed the paper-making industrial waste water emission standard of national defined in the waste water.2, contain tens kinds of persistence Persistent organic pollutants such as long chain alkane class, phenols, arene in the waste water, these materials are owing to the complicacy of structure and the toxicity of itself, and great majority are difficult to fast and effectively be utilized by microorganism.These hardly degraded organic substances of how more rapidly and efficiently degrading improve persistence hardly degraded organic substance degradation rate in the waste paper making wastewater, improve effluent quality, have caused that people more and more pay close attention to.At present adopt one-level materialization processing+secondary biochemical treatment mostly for the processing of waste paper making wastewater, this treatment process can obtain treatment effect preferably, the COD clearance is higher in the waste water, but this method can not thoroughly be removed the persistence hardly degraded organic substance in the waste water, hardly degraded organic substance content is also than higher in water outlet, basic indexs such as volatile phenol, petroleum-type, colourity can not be up to standard, therefore, waste paper making wastewater after handling is easy to generate the accumulation of persistence hardly degraded organic substance when recycling, make water closed circulation use for a long time.When this part water discharging, owing to contain the persistence hardly degraded organic substance in the water, therefore toxicity is bigger, harm to environment is big, duration of pollution is long, and it is significant for solving the waste paper making wastewater problem of environment pollution caused to propose the efficient degradation method that hardly degraded organic substance is handled in such waste water.
Summary of the invention
The present invention is in order to overcome the problem and shortage that prior art exists, and the carbon source synergistic metabolism biological treatment method of persistence organic pollutant in a kind of waste paper making wastewater of high treatment efficiency is provided.
The present invention can be achieved by the following technical programs: the carbon source synergistic metabolism biological treatment method of persistence organic pollutant in a kind of waste paper making wastewater may further comprise the steps:
(1) adding concentration in distribution reservoir is 8～12g/L glucose solution, concentration is that 80～120mg/L phenol solution and concentration are 99.5% the common metabolism carbon source of methyl alcohol conduct, after making waste paper making wastewater and carbon source thorough mixing, enter hydrolysis/aerobic metabolic reaction pond (HOCR) altogether;
(2) be hydrolyzed/aerobic metabolic reaction altogether in hydrolysis/aerobic metabolic reaction pond (HOCR) altogether, by hydrolysis-aerobic means, acclimated microorganism enters catalytic oxidation metabolic reaction pond altogether after relying on extraneous utilization of carbon source hardly degraded organic substance under anoxic and the aerobic condition;
(3) catalytic oxidation add in the metabolic reaction pond altogether concentration be the glucose solution of 8～12g/L as carrying out catalytic oxidation metabolic reaction altogether after the metabolism carbon source altogether, microorganism is at the glucose thoroughly remaining hardly degraded organic substance of degraded or its converted product under the metabolic condition altogether;
(4) after waste water is come out by the common metabolic reaction pond of catalytic oxidation, enter second pond or reuse, suspended substance sedimentation bigger in the mixed solution is in the sludge bucket of bottom, pond.
In aforesaid method, the described hydrolysis of step (2)/aerobic metabolic reaction pond (HOCR) altogether is divided into hydrolysis area (H district), anoxic metabolism district (A district) and aerobic three districts, metabolism district (O district) altogether altogether, can realize the hydrolysis and the acidifying of larger molecular organics at hydrolysis area (H district), small organic molecule after the hydrolysis can utilize anoxic metabolism realization degraded or conversion altogether in metabolism district (A district) altogether in anoxic, in aerobic metabolism district (O district) altogether, anoxic is total to material or its converted product that can not degrade fully under the metabolism condition can realize further degraded.
The volume ratio of the described hydrolysis of step (2)/aerobic interior glucose solution in metabolic reaction pond (HOCR) altogether and waste water is C
6H
12O
6: C
6H
5OH: CH
3OH: waste water=10: 1: 1: 1000, hydraulic detention time is 10～12 hours; The described catalytic oxidation of step (3) is total in the metabolic reaction pond, and glucose is 1: 100 with the wastewater volume ratio, and hydraulic detention time is 8～10 hours.
Compared with prior art, the present invention has the following advantages:
(1) waste paper making wastewater treatment process of the present invention is not as traditional biochemical processing method, but biochemistry partly is divided into hydrolysis/aerobic metabolism+catalytic oxidation altogether mode of metabolism processing altogether, and add carbon source altogether metabolism the treatment stage in hydrolysis/aerobic, utilize the carbon source synergistic metabolism principle of microorganism key enzyme that the persistence Persistent organic pollutants are well degraded, so not only improved the clearance of COD in the waste water greatly, simultaneously, waste water can guarantee chlorophenols in the waste discharge after handling through carbon source synergistic metabolism effectively, phthalate, long chain alkane class and the converted product ketone in degraded thereof, persistence hardly degraded organic substances such as quinones obtain degraded.
(2) biochemical treatment of the present invention is adopted hydrolysis/aerobic metabolism+catalytic oxidation altogether metabolism technology altogether at the characteristics that contain the persistence Persistent organic pollutants in the waste paper making wastewater.In hydrolysis/aerobic metabolic reaction pond (HOCR) altogether, the H district utilizes hydrolytic action to make the long molecular rupture of pollutents such as fiber in the waste water, lignin, reduce the contaminant molecule amount, make it be decomposed into organic acid and other low molecule organic matter (as acetate, ethanol), be total under the metabolic effect in carbon source, microorganism utilizes easy degradation material to satisfy as carbon source and utilizes hard-degraded substance when self grows; A district and O district utilize anoxic and the aerobic metabolism altogether of microorganism respectively, and the flora of the efficient degradation hardly degraded organic substance that domestication obtains can make hardly degraded organic substance be able to thorough degraded.Be total in the metabolic reaction pond at catalytic oxidation, microorganism on the filler catches through absorption, adhesion, collision, net and contacts organic substance in the sewage, organism in the oxygenolysis sewage, form carbonic acid gas, water and cellular material, finish metabolism and the propagation (birth of microorganism, growth, breeding, aging and death) of self.In whole biological treatment system, biophase is made up of acid-producing bacteria, hold concurrently oxygen bacterium, aerobic bacteria and efficient degrading bacteria.This than traditional only with one-level aerobic or anaerobism method handle the processing efficiency that waste paper making wastewater has improved hardly degraded organic substance matter preferably; After this biological treatment system was handled, COD, BOD clearance were more than 90% and 95% in the waste water, and persistence difficult degradation pollutants removal rates such as volatile phenol, colourity, petroleum-type reach 80%, 85%, more than 85%.
(3) method of degraded persistence organic pollutant provided by the present invention, main by hydrolysis/aerobic metabolic reaction pond (HOCR) altogether and add that conduct such as glucose, phenol, methyl alcohol are total to that the metabolism carbon source realizes persistence organic pollutant in the waste paper making wastewater efficiently be total to metabolic degradation, has the efficient height, simple possible is convenient to industrialized characteristics.
Embodiment
Embodiment
The waste water that adopts deinking slurry to carry out papermaking to certain paper mill in handling HOCR reactor that wastewater flow rate is 80L and traditional contact oxidation reactor laboratory day compares handles research, its technological operation is: get the waste water that handle through the front end materialization in the paper mill, at first compound concentration 8g/L, 10g/L, three kinds of glucose solutions of 12g/L and concentration are respectively three kinds of phenol solution of 80mg/L, 100mg/L, 120mg/L, methyl alcohol adopts commercially available 99.5% solution, waste water and above solution by volume: C
6H
12O
6: C
6H
5OH: CH
3OH: waste water=10: 1: 1: 1000 enter the HOCR reactor after mixing, and carry out three groups of comparative studies.The I group is chosen the phenol solution of glucose solution and the 80mg/L of 8g/L, the II group is chosen the phenol solution of glucose solution and the 100mg/L of 10g/L, the III group is the phenol solution of the glucose solution of 12g/L and 120mg/L, methanol concentration is all identical with volume ratio in three groups of experiments, and hydraulic detention time is 10～12 hours.
Hydrolysis/aerobic metabolic reaction pond water outlet altogether enters catalytic oxidation metabolic reaction pond altogether, and add and the wastewater volume ratio is that 1: 100 concentration is respectively the common metabolism carbon source of the glucose solution of 8g/L, 10g/L, 12g/L as I, II, III group to this pond, the metabolic reaction tank waterpower residence time is 8～10 hours to catalytic oxidation altogether.Handle the back water outlet and carry out the mensuration of every contamination index, analyze and draw COD≤50mg/L, SS≤30mg/L, BOD≤15mg/L, colourity≤50mg/L, volatile phenol≤0.5mg/L, petroleum-type≤5mg/L reaches national grade one discharge standard fully.
Carry out traditional acidication+catalytic oxidation simultaneously and handle contrast enforcement experimental study.
In the foregoing description, the polluting property of this waste water sees Table 1, and waste water is through after the HOCR reactor for treatment, and I group, II group, III group comparative study effect see Table 2 respectively, table 3, table 4.
Table 1 waste paper making wastewater polluting property concentration unit: mg/L
Table 2I group each processing unit treatment effect table look-up concentration unit: mg/L
Table 3II group each processing unit treatment effect table look-up concentration unit: mg/L
Table 4III group each processing unit treatment effect table look-up concentration unit: mg/L
Same waste water is behind the general acidication+contact oxidation reactor in this laboratory, and under same hydraulic detention time, treatment effect sees Table 5.
Table 5 conventional art each processing unit treatment effect table look-up concentration unit: mg/L
Data more traditional the improving about 30% of its COD clearance after the HOCR technical finesse as can be seen from table 2-table 5, indexs such as volatile phenol, petroleum-type tradition improve 60%～80%.Can draw persistence organic pollutant (POPs) clearance from the data of volatile phenol, petroleum-type degraded and reach more than 95%, HOCR technology has been improved effluent quality greatly than traditional technology.Adopt the present invention to handle the waste paper making wastewater cost and see Table 6.
Table 6 the present invention handles waste water integrated operation per ton cost analysis
| Sequence number | The expense title | Consumption | Basis | Expense (unit/ton waste water) |
| 1 | The electricity charge | 0.08 degree/m 3Waste water | 0.8 unit/degree | 0.064 |
| 2 | Glucose | 0.01kg/m 3Waste water | 5.5 unit/kilogram | 0.055 |
| 3 | Methyl alcohol | 0.001kg/m 3Waste water | 2.5 unit/kilogram | 0.003 |
| 4 | Phenol | 0.0001kg/m 3Waste water | 9.5 unit/kilogram | 0.001 |
| 5 | Biochemistry nutrition salt | 0.01kg/m 3Waste water | 2 yuan/kilogram | 0.02 |
| 6 | Add up to | 0.143 |
From the foregoing description as can be seen: compare with traditional treatment process, adopt the present invention to handle waste paper making wastewater, water after the processing not only conventional pollution index value such as COD reduces greatly, and the persistence hardly degraded organic substance is well degraded, indexs such as volatile phenol, petroleum-type, colourity reach emission standard fully, simultaneously can also guarantee that waste water after treatment recycles for a long time, and working cost is not high yet.
Claims (4)
1. the carbon source synergistic metabolism biological treatment method of persistence organic pollutant in the waste paper making wastewater is characterized in that: may further comprise the steps:
(1) adding concentration in distribution reservoir is 8～12g/L glucose solution, concentration is that 80～120mg/L phenol solution and concentration are 99.5% the common metabolism carbon source of methyl alcohol conduct, after making waste paper making wastewater and carbon source thorough mixing, enter hydrolysis/aerobic metabolic reaction pond altogether;
(2) be hydrolyzed/aerobic metabolic reaction altogether in hydrolysis/aerobic metabolic reaction pond altogether, by hydrolysis-aerobic means, acclimated microorganism enters catalytic oxidation metabolic reaction pond altogether after relying on extraneous utilization of carbon source hardly degraded organic substance under anoxic and the aerobic condition;
(3) catalytic oxidation add in the metabolic reaction pond altogether concentration be the glucose solution of 8～12g/L as carrying out catalytic oxidation metabolic reaction altogether after the metabolism carbon source altogether, microorganism is at the glucose thoroughly remaining hardly degraded organic substance of degraded or its converted product under the metabolic condition altogether;
(4) after waste water is come out by the common metabolic reaction pond of catalytic oxidation, enter second pond or reuse, suspended substance sedimentation bigger in the mixed solution is in the sludge bucket of bottom, pond.
2. carbon source synergistic metabolism biological treatment method according to claim 1, it is characterized in that: the described hydrolysis of step (2)/aerobic metabolic reaction pond altogether is divided into hydrolysis area, anoxic metabolism district and aerobic three districts, metabolism district altogether altogether, can realize the hydrolysis and the acidifying of larger molecular organics at hydrolysis area, small organic molecule after the hydrolysis can utilize anoxic metabolism realization degraded or conversion altogether in the metabolism district altogether in anoxic, in aerobic metabolism district altogether, anoxic is total to material or its converted product that can not degrade fully under the metabolism condition can realize further degraded.
3. carbon source synergistic metabolism biological treatment method according to claim 2 is characterized in that: in the described hydrolysis of step (2)/aerobic metabolic reaction pond altogether, the volume ratio of glucose solution and waste water is C
6H
12O
6: C
6H
5OH: CH
3OH: waste water=10: 1: 1: 1000, hydraulic detention time is 10～12 hours.
4. according to claim 2 or 3 described carbon source synergistic metabolism biological treatment methods, it is characterized in that: the described catalytic oxidation of step (3) is total in the metabolic reaction pond, and glucose solution is 1: 100 with the wastewater volume ratio, and hydraulic detention time is 8～10 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100258408A CN100488902C (en) | 2008-01-17 | 2008-01-17 | Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper |
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| CNB2008100258408A CN100488902C (en) | 2008-01-17 | 2008-01-17 | Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper |
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| CN101215070A true CN101215070A (en) | 2008-07-09 |
| CN100488902C CN100488902C (en) | 2009-05-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232137A (en) * | 2013-04-25 | 2013-08-07 | 西华大学 | Paper-making waste water treatment system and treatment process |
| CN107265809A (en) * | 2017-04-28 | 2017-10-20 | 贵州大学 | A kind of method of anaerobic co-metabolism degraded polycyclic aromatic hydrocarbons in sludge |
| CN115093020A (en) * | 2022-07-12 | 2022-09-23 | 国环电池科技(苏州)有限公司 | Detoxification method of heavy metal sewage anaerobic biological section |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420091A (en) * | 2002-03-07 | 2003-05-28 | 南京大学 | Papermaking waste liquor ecologic treatment and recovery circulation use |
| CN100484886C (en) * | 2004-08-27 | 2009-05-06 | 华南理工大学 | Process for treatnig paper-making waste water of waste paper |
-
2008
- 2008-01-17 CN CNB2008100258408A patent/CN100488902C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232137A (en) * | 2013-04-25 | 2013-08-07 | 西华大学 | Paper-making waste water treatment system and treatment process |
| CN103232137B (en) * | 2013-04-25 | 2014-10-08 | 西华大学 | Paper-making waste water treatment system and treatment process |
| CN107265809A (en) * | 2017-04-28 | 2017-10-20 | 贵州大学 | A kind of method of anaerobic co-metabolism degraded polycyclic aromatic hydrocarbons in sludge |
| CN107265809B (en) * | 2017-04-28 | 2020-08-11 | 贵州大学 | Method for degrading polycyclic aromatic hydrocarbon in sludge through anaerobic co-metabolism |
| CN115093020A (en) * | 2022-07-12 | 2022-09-23 | 国环电池科技(苏州)有限公司 | Detoxification method of heavy metal sewage anaerobic biological section |
| CN115093020B (en) * | 2022-07-12 | 2023-10-10 | 华辰环保能源(广州)有限责任公司 | Detoxification method of anaerobic biological section of heavy metal sewage |
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| CN100488902C (en) | 2009-05-20 |
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Assignee: Zhuhai Huafeng Paper Industry Co., Ltd. Assignor: South China University of Technology Contract record no.: 2010440000486 Denomination of invention: Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper Granted publication date: 20090520 License type: Exclusive License Open date: 20080709 Record date: 20100511 |
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