CN106745689A - A kind of biological rotating disk processing method of synthetic leather waste water - Google Patents
A kind of biological rotating disk processing method of synthetic leather waste water Download PDFInfo
- Publication number
- CN106745689A CN106745689A CN201710079775.6A CN201710079775A CN106745689A CN 106745689 A CN106745689 A CN 106745689A CN 201710079775 A CN201710079775 A CN 201710079775A CN 106745689 A CN106745689 A CN 106745689A
- Authority
- CN
- China
- Prior art keywords
- rotating disk
- waste water
- filler
- water
- synthetic leather
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/082—Rotating biological contactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
-
- 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
Abstract
The invention discloses a kind of biological rotating disk processing method of synthetic leather waste water, directly be made rotating cage with chitin fiber net replaces disc to the biological rotating disk, and modified peanut filler is added in rotating cage.Biomembrane is securable to filler and rotating cage surface, and rotating cage lower half is submerged in water, and as rotating cage is rotated, the biomembrane on carrier and rotating cage is alternately in air and submerged in water, reaches the purpose of oxygenation and treatment waste water.The reactor has the advantages that equipment is simple, easily fabricated, investment cost few.
Description
Technical field
A kind of biological rotating disk the invention belongs to synthetic leather technical field of waste water processing, more particularly to synthetic leather waste water is processed
Method.
Background technology
The history in bio-disc system (RBC) treatment sewage/wastewater existing more than 50 years, is biomembrance process treatment waste water technology
One kind, it grows up from the basis of biofilter, has been widely used in various sanitary sewages and industrial wastewater
Treatment.
Disk of the biological rotating disk by series installation on horizontal rotating shaft is constituted, and waste water enters oxygen with certain flow rate
Change groove, disc portoin is immersed in water (about 40% -45%), when disc is rotated with relatively low linear velocity in groove, absorption exists
Microorganism on disc alternately contacts with the oxygen in organic matter and air in waste water, carries out amphimicrobian and aerobic digestion, makes
Organic matter therein and some ions are degraded, so as to reach the purpose of purification waste water.
The factor of influence biological rotating disk treatment waste water has disc material, rotating speed, hydraulic detention time (HRT), organic loading
And hydraulic load, rotating disk series, temperature, disc influence basin etc., and the carrier of wherein disc material, i.e. biomembrane is most critical
Factor, its performance directly decides the scavenging effect of rotating disk.The disk plate for biological rotating disk for being used at present mostly uses ripple
Plastic plate, glass epoxy etc., disk shape is single, specific surface area is small, carrier surface forming biofilm property is poor, treatment effeciency is low, service life is short
Deng, therefore find the master that a kind of big carrier surface forming biofilm property of specific surface area is good, the corrosion resistant disc material of light weight is current RBC researchs
Want direction.Experiment prepares disk plate for biological rotating disk using activated carbon as the carrier that biomembrane adheres to, and investigates the biological rotating disk pair
The scavenging effect of dirty Organic substance in water.
Shitosan is a kind of natural cationic polysaccharide that chitin is obtained through deacetylation.With free in chitosan molecule
Amino, in an acidic solution easily into salt, in cationic property.Shitosan has the characteristic such as natural, nontoxic, biodegradable, its
Preparing raw material chitin is widely present in nature.Chitosan-phospholipid complex can be used as flocculation as environmentally friendly material
Agent, adsorbent, chelating agent, antisludging agent and sludge conditioner etc., have obtained extensively especially as flocculant in terms of water process
Using.
The content of the invention
It is an object of the invention to provide a kind of disc material and preparation method that waste water is processed for biological rotating disk.
The purpose of the present invention is achieved through the following technical solutions, and the biological rotating disk is directly made of chitin fiber net
Rotating cage replaces disc, and modified peanut filler is added in rotating cage, and biomembrane is securable to filler and rotating cage surface, under rotating cage
Half portion is submerged in water, and as rotating cage is rotated, the biomembrane on carrier and rotating cage alternately in air and is immersed in water
In, reach the purpose of oxygenation and treatment waste water.It is excellent that the reactor has that equipment is simple, easily fabricated, investment cost is few etc.
Point.
The chitin fiber is, with shitosan as primary raw material, to be dissolved in appropriate solvent, is configured to finite concentration
Spinning solution, then through obtained in the techniques such as spinneret, solidification forming, stretching with some strength high molecular functional material.
The modified peanut filler is to clean peanut shell with running water, deionized water respectively, dry, crushing, sieving,
It is made the peanut shell granular between 250-350 μm.By above peanut shell granular, with absolute ethyl alcohol as solvent, liquefaction CO2 be
Expanding gas, solid-liquid ratio is 1:5(g:ML), after pressure 5-7 MPa, the min of 318 K constant temperature extractings peanut shell granular 50, delay
Slow play goes out CO2 gases, is automatically separated gas-liquid, merges and collects alcohol extract and washing lotion, after being centrifuged, can be had
There is the peanut shell effective component extracting of natural activity.By the residue after separation through water washing after, 300 K drying be made modified flower
Raw shell filler.
Further to verify difference of the modified peanut filler with unmodified peanut shell filler on scavenging effect, inventor
Comparative testing below is done.
Experimental data
1st, RBC is single shaft level Four series connection rotating disk, the L of net dischargeable capacity 8.50, disc sum 16.A set of level Four series connection rotating disk
Modified peanut filler is inserted in rotating cage, unmodified peanut shell filler is inserted in the rotating cage of another set of level Four series connection rotating disk.
2nd, COD mass concentrations are determined using standard dichromate titration；Ammonia nitrogen mass concentration uses nessler reagent light splitting
Photometry, 752N ultraviolet specrophotometers, λ=420 nm.
3rd, biofilm thickness observational technique is analyzed using light target light microscope is carried.One is taken with biomembrane
Filler, carefully clamped with tweezers, cut the thin slice of 1~1. 5 mm along radial direction with blade, be placed on slide, drip
Enter some clear water, its film thickness, growing state are measured under the microscope, and clapped with RKC series USB2. 0 digital cameras
According to.
4th, test waste water used and take from waste water and wash water of our company's synthetic leather production line discharge etc..
5th, activated sludge takes from Yinan County sewage treatment plant.By activated sludge and synthetic leather wastewater volume ratio for 4: 2 ratio
Added in oxidation trough after example dilution, account for the 30% of rotating disk effective volume.Start rotating disk to be allowed to rotate, the microorganism allowed in water body
Voluntarily it is attached on disc and grows；The r/min of disc rotation speed 4-5, continuous operation；Water inlet and water-out manners connect after being first interval
It is continuous；Every 3 d takes out part mud mixture, is allowed to settle, in the sludge re-injection oxidation trough that will have been settled, then by muddy water body
The ratio that product compares 4: 2 adds the new waste water matched somebody with somebody, until the built-in full water of whole oxidation trough.When disc attached last layer stick-slip thing, can
It is suitably added some underload simulated wastewaters biomembrane is cultivated and tamed.20 d or so are run, when COD clearances exist
More than 80%, when 3-N of NH clearances are more than 70%, it will be recognized that biofilms domestication terminates.After biofilm success, you can will
Seed sludge is excluded and starts water inlet, detects the wastewater treatment performance of biomembrane.
6th, peanut shell before modified mutually observe by rear filler surface biological
Biomembrane during start-up is observed and measured using light microscope and RKC series USB2.0 digital cameras
Thickness, different times biofilm thickness is shown in Table 1, it can be seen that peanut shell is filler modified compared with unmodified, raw after biofilm success
Thing film thickness has obvious difference.
1 different time of table, 2 kinds of filler surface biological film thicknesses
With the extension of incubation time, 2 kinds of biofilm thickness on filler surface are all increasing.Wherein filled out by modified peanut shell
Material surface biological film increases most fast, and filler surface biological film was not only thick but also loose, and resistance to mass tranfer is small, is conducive to improving sewage disposal energy
Power.Then growth rate is slow for non-modified carrier biofilm, and the biomembrane of filler is relatively thin and comparatively dense.
On the basis of experiment, our company on our company's production line again according to the biological rotating disk used by above-mentioned experiment to discharging
Synthetic leather waste water carry out pilot scale treatment, pilot-scale experiment is similar to experimental result, and result see the table below.Illustrate of the present invention
Biological rotating disk have preferably treatment synthetic leather waste water ability.
As can be seen from the above table, compared with unmodified peanut filler, it has significantly modified peanut filler to COD clearances
Improve, this is mainly due to filler modified rear specific surface area increase, biomass is significantly increased.Additionally, microorganism is by albumen point
Son space structure and form with large aperture biological surface layer, mass-transfer efficiency can be improved, be conducive to going for polluter
Remove.The rotating cage being besides made up of chitin fiber, chitin fiber surface is all fluted, with microcellular structure, is immersed in the water
The diameter of chitin fiber slightly has increase, and the moisture expantion of chitin fiber increased water side, be conducive to the numerous of microorganism
Reproductive growth.
Specific embodiment
Directly be made rotating cage with chitin fiber net replaces disc to the biological rotating disk, and modified peanut filler is added in rotating cage,
Biomembrane is securable to filler and rotating cage surface, and rotating cage lower half is submerged in water, as rotating cage is rotated, on carrier and rotating cage
Biomembrane it is alternately in the air and submerged in water, reach the purpose of oxygenation and treatment waste water.Chitin fiber be with
Shitosan is primary raw material, is dissolved in appropriate solvent, is configured to certain density spinning solution, then through spinneret, be frozen into
The obtained high molecular functional material with some strength of the techniques such as shape, stretching.Modified peanut filler is by peanut shell point
Do not cleaned with running water, deionized water, dried, crushed, sieved, be made the peanut shell granular between 300 μm.By above peanut
Shell particle, with absolute ethyl alcohol as solvent, liquefaction CO2 as expanding gas, solid-liquid ratio is 1:5(g:ML), the MPa of pressure 6,318
It is slow to release CO2 gases after the min of K constant temperature extractings peanut shell granular 50, gas-liquid is automatically separated, merge and collect ethanol leaching
Extract and washing lotion, after being centrifuged, can obtain the peanut shell effective component extracting with natural activity.By the residue after separation
After through water washing, 300 K drying is made modified peanut filler.
Claims (3)
1. a kind of biological rotating disk processing method of synthetic leather waste water, it is characterised in that the biological rotating disk directly uses chitin fiber net
It is made rotating cage and replaces disc, modified peanut filler is added in rotating cage.
2. a kind of biological rotating disk processing method of synthetic leather waste water as claimed in claim 1, it is characterised in that the shitosan
Fiber is, with shitosan as primary raw material, to be dissolved in appropriate solvent, is configured to certain density spinning solution, then through spray
The obtained high molecular functional material with some strength of the techniques such as silk, solidification forming, stretching.
3. a kind of biological rotating disk processing method of synthetic leather waste water as claimed in claim 1, it is characterised in that the modified flower
Raw shell filler is to clean peanut shell with running water, deionized water respectively, dry, crushing, sieving, be made 250-350 μm it
Between peanut shell granular, by above peanut shell granular, with absolute ethyl alcohol as solvent, liquefaction CO2 as expanding gas, solid-liquid ratio is
1:5(g:ML), it is slow to release CO2 gases after pressure 5-7 MPa, the min of 318 K constant temperature extractings peanut shell granular 50, make
Gas-liquid is automatically separated, and merges and collects alcohol extract and washing lotion, after being centrifuged, can obtain the peanut shell with natural activity
Effective component extracting, by the residue after separation through water washing after, 300 K drying be made modified peanut filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079775.6A CN106745689B (en) | 2017-02-15 | 2017-02-15 | Biological rotating disc treatment method for synthetic leather wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079775.6A CN106745689B (en) | 2017-02-15 | 2017-02-15 | Biological rotating disc treatment method for synthetic leather wastewater |
Publications (2)
| Publication Number | Publication Date |
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| CN106745689A true CN106745689A (en) | 2017-05-31 |
| CN106745689B CN106745689B (en) | 2020-11-13 |
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| CN201710079775.6A Active CN106745689B (en) | 2017-02-15 | 2017-02-15 | Biological rotating disc treatment method for synthetic leather wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146535A (en) * | 1994-06-24 | 2000-11-14 | Sutherland; George | Organic recovery method using hollow fiber microfilters |
| CN1603407A (en) * | 2004-11-01 | 2005-04-06 | 北京航空航天大学 | Preparation of chitosan imbedded microbe sphere and method for biological treatment of sewage using same |
| CN103055821A (en) * | 2012-12-17 | 2013-04-24 | 福州赛孚玛尼环保科技有限公司 | Chemical modification method of purification peanut shells |
| CN203007016U (en) * | 2013-01-18 | 2013-06-19 | 重庆大学 | Novel combined-type biological rotating disc |
-
2017
- 2017-02-15 CN CN201710079775.6A patent/CN106745689B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146535A (en) * | 1994-06-24 | 2000-11-14 | Sutherland; George | Organic recovery method using hollow fiber microfilters |
| CN1603407A (en) * | 2004-11-01 | 2005-04-06 | 北京航空航天大学 | Preparation of chitosan imbedded microbe sphere and method for biological treatment of sewage using same |
| CN103055821A (en) * | 2012-12-17 | 2013-04-24 | 福州赛孚玛尼环保科技有限公司 | Chemical modification method of purification peanut shells |
| CN203007016U (en) * | 2013-01-18 | 2013-06-19 | 重庆大学 | Novel combined-type biological rotating disc |
Non-Patent Citations (3)
| Title |
|---|
| 汪多仁: "《绿色净水处理剂》", 30 November 2006, 科技技术文献出版社 * |
| 蒋凯凤等: "水处理生物膜载体研究进展", 《浙江林学院学报》 * |
| 陈伟华等: "乙醇改性花生壳前后对其处理含Cd2+废水的研究", 《上饶师范学院学报》 * |
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Address after: 276300 Economic Development Zone, Yinan County, Linyi City, Shandong Province Patentee after: Shandong Zhongxing Zehui New Material Co.,Ltd. Address before: 276300 Industrial Park, Yinan County, Linyi City, Shandong Province Patentee before: SHANDONG ZEHUI HI-TECH CO.,LTD. |