CN102838204A - Active biological filler for treating high-concentration refractory wastewater and preparation method thereof - Google Patents
Active biological filler for treating high-concentration refractory wastewater and preparation method thereof Download PDFInfo
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- CN102838204A CN102838204A CN2012102833434A CN201210283343A CN102838204A CN 102838204 A CN102838204 A CN 102838204A CN 2012102833434 A CN2012102833434 A CN 2012102833434A CN 201210283343 A CN201210283343 A CN 201210283343A CN 102838204 A CN102838204 A CN 102838204A
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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 active biological filler for treating high-concentration refractory wastewater and a preparation method thereof. The active biological filler comprises the following components in parts by weight: 3-18 parts of enzymatic activity regulator, 80-96.5 parts of high molecular polymer and 0.5-2 parts of processing modifier. The active biological filler is prepared by the following steps of: weighing each raw material according to a formula ratio, adding into a stirrer and fully and uniformly mixing; adding a mixed material into a forming production line; regulating temperature to be 135-215 DEG C to soften the material and performing extrusion molding through a mold to obtain a semi-finished product; and sequentially shaping the semi-finished product through a vacuum shaping sleeve and cooling the semi-finished product in a water cooling tank until the semi-finished product is fully shaped, and then cutting and forming under traction of a caterpillar tractor. By regulating the composition of an inorganic active factor and the content of each component of the active biological filler, the capacity of degrading specific pollutants by biomembrane microorganisms on the surface of the filler is purposefully reinforced, and the water quality of effluent water of a reactor is improved.
Description
Technical field
The invention belongs to water treatment field, relate to active bio filler of a kind of treatment of high concentration used water difficult to degradate and preparation method thereof.
Background technology
The processing of high concentration hard-degraded organic waste water is the difficult problem that WWT circle is both at home and abroad at present generally acknowledged.For this type waste water, at present both at home and abroad research is more has professional waste water such as coking chemical waste water, pharmacy waste water, petrochemical industry/oils waste water, weaving/dyeing waste water, wastewater from chemical industry, paint waste water.(Zhao Yuelong, Qi Peishi, Yang Yunlong. high concentration hard-degraded organic waste water treatment technology summary, Sichuan environment, 2006,4 (25): 98-103)
The improvement of high concentration hard-degraded organic waste water has received the attention of global range as the important topic in environmental protection field.Current, the MBBR technology is considered to one of treatment of high concentration organic wastewater with difficult degradation thereby application prospect the best way.MBBR obtains development and application in the mid-90 in 20th century; It is to have absorbed a kind of sewage water treatment method efficiently that the advantage of traditional fluidized-bed and biological contact oxidation process forms; Its core is exactly directly to be added in the aeration tank as the microbic activity carrier with the floating stuffing (claiming carrier again) of proportion near water; Rely on aeration and the castering action of current in the aeration tank to be in fluidized state, it is a kind of technology that the biomembrance process of activated sludge process and the apposition growth of suspension growth combines.But the MBBR of traditional floating stuffing is little to many organic cpds effects; As to the toxic effect of mikrobe, microbiological deterioration is had restraining effect; Influence the filling surface mikrobe to organic degraded; Thereby influence the comprehensive treatment effect of high concentration hard-degraded organic waste water, be difficult to satisfy the requirement of discharged wastewater met the national standard.
Chinese invention patent CN1206173C has announced " a kind of living microorganism carrier of the usefulness of carrying out a biological disposal upon ".It contains rubber powder, proportion regulator, tackiness agent, reinforcing filler four constituents, and wherein reinforcing filler can select microbial dry powder, active sludge xeraphium to mince.This invention filler reinforcing filler selects microbial dry powder, the active sludge xeraphium water quality that adapts to that minces not have popularity, when handling specific waste water, will experience very long domestication; When condition of water quality is abominable, even the danger of demoulding is arranged.
Chinese invention patent CN101113052A has announced " modified suspending filler ".This invention is processed for modified polyethylene material or modified polypropylene material, and said modified polyethylene material is that 0.01wt%～8wt% magnesium salts and weight percent are that the inhibitor of 0.3wt%～3wt% is processed by weight percent is the Vilaterm of 80%～95wt%, carbon black that weight percent is 0.2wt%～15wt%, weight percent is 0.5wt%～15wt% molysite, weight percent.The purpose of this invention is in order to solve the problem of the filling surface nitrifier adhesive ability difference of using in the treatment tank in the past, can't to adapt to the requirement of efficient treatment of high concentration used water difficult to degradate comprehensively.
Chinese invention patent CN1314600C has announced " a kind of modified microbe stuffing ", and it is made up of the raw material of following parts by weight: high density polyethylene(HDPE) 66.2wt%～91.7wt%, ground rubber 5wt%～15wt%, light calcium carbonate 2wt%～10wt%, maleic anhydride 1wt%～6wt%, Di Cumyl Peroxide 99 0.1wt%～0.8wt%, chitin 0.2wt%～2wt%, carbon black 0～0.2wt%.Enzyme promotor-chitin that this invention is used is water insoluble, is unfavorable for the hydrophilic raising of filler, and chitin is prone to be degraded by microorganisms, and has influence on the intensity of filler.
Chinese invention patent CN101767865A has announced " a kind of filler that is used for WWT and preparation method thereof ", and purpose is to solve that prior biological carrier appendix living weight is low, the problem of poor activity.This invention filler microorganism used therefor growth stimulant is a tourmalinite; Tourmalinite is the natural mineral of multielement, and staple has magnesium, aluminium, and iron, 10 various trace elements such as boron can play promoter action to microbial growth, but have the deficiency that can not regulate micro-ratio and kind according to the different quality situation.The active activator of this invention filler microorganism used therefor is a trace elements iron, and composition is single, can't adapt with the abundant microbial population of microbial film.
Also there is following weak point in existing biologic packing material material research: do not consider the different sorts of mikrobe in the sewage when in filler, adding the microorganisms/enzymes accelerative activator, the promotor of interpolation is single; , the composition and the ratio of microorganisms/enzymes accelerative activator are not adjusted accordingly, to reach the purpose that activates and promote specified microorganisms/enzymic activity according to the difference of waste water quality.
Summary of the invention
The objective of the invention is above-mentioned deficiency, a kind of active bio filler of treatment of high concentration used water difficult to degradate is provided to prior art.
Another object of the present invention provides the preparation method of this active bio filler.
A kind of active bio filler of treatment of high concentration used water difficult to degradate is characterized in that comprising:
Enzymatic activity regulator 3 ~ 18 weight parts,
High molecular polymer 80 ~ 96.5 weight parts,
Modifier 0.5 ~ 2 weight part;
Wherein, described enzymatic activity regulator is the compound that contains the inorganic active factor, and the described inorganic active factor is selected from Fe
2+, Cu
2+, Mn
2+, Ca
2+Or Zn
2+In one or more; Described high molecular polymer is a kind of in Vestolen PP 7052 (PP), Vilaterm (PE), SE (PVC), PS (PS), Injecatable EVA Copolymer (EVA) and the polyester (PET) or more than one mixture; Described modifier is Triple Pressed Stearic Acid and/or stearate.
Described enzymatic activity regulator preferably contains Fe
2+, Cu
2+, Mn
2+, Ca
2+Or Zn
2+Villaumite or in the bromine salt one or more.
Described Vestolen PP 7052 (PP) is extrusion grade HPP homopolymer polypropylene, random copolymers or segmented copolymer, and melt index (MFI) is 0.5 ~ 4g/10min; Described Vilaterm (PE) is the extrusion grade new LDPE (film grade), and extrusion grade linear low density polyethylene or extrusion grade high density polyethylene(HDPE), melt index are 0.5 ~ 4g/10min; Described SE is general soft pvc; Described PS (PS) is extrusion grade PS; Described polyester (PET) is the extrusion grade polyethyleneterephthalate.
Described active bio filler prepares through following method:
1) takes by weighing each raw material of formula ratio, add the abundant mixing of stirrer;
2) material that mixes is added to forming production line, adjusts the temperature to 135 ~ 215 ℃, make that material is softening, get work in-process through the mould extrusion moulding;
3) work in-process through successively through Vacuum shaping cover typing with after getting into water cooling tank and being cooled to typing fully, under the traction of caterpillar tractor, excision forming.
The preparation method of the active bio filler of described treatment of high concentration used water difficult to degradate is characterized in that comprising following steps:
1) takes by weighing each raw material of formula ratio, add the abundant mixing of stirrer;
2) material that mixes is added to forming production line, adjusts the temperature to 135 ~ 215 ℃, make that material is softening, get work in-process through the mould extrusion moulding;
3) work in-process through successively through Vacuum shaping cover typing with after getting into water cooling tank and being cooled to typing fully, under the traction of caterpillar tractor, excision forming.
The application of described active bio filler in the treatment of high concentration used water difficult to degradate.
Beneficial effect:
The present invention, adds in the high molecular polymer through filling technique in active bio filler production process as the enzymatic activity regulator with the inorganic active factor.Through the interpolation of the multiple inorganic active factor, can enrich the kind of active bio filling surface biofilm microorganisms, increase the activity of filling surface mikrobe and enzyme.Simultaneously; Can be through composition and each components contents of the adjustment inorganic active factor; Strengthen the ability of filling surface biofilm microorganisms degraded specific pollutants targetedly, improve the reactor drum effluent quality, improve the usefulness of active bio filler treatment of high concentration used water difficult to degradate.The result shows, under the aerobic condition, can improve filling surface biofilm microorganisms active 20% ~ 25%; Under the anaerobic condition, can improve filling surface biofilm microorganisms active 5% ~ 15%.
Embodiment
Embodiment 1
By weight taking by weighing enzymatic activity regulator FeCl
23 parts, 0.5 part of modifier Triple Pressed Stearic Acid adds in the impeller and mixed 5 minutes, takes by weighing 96.5 parts of extrusion grade Vestolen PP 7052 (melt index is 3.6g/10min) again, adds and continues to mix discharging 1 minute.Each section of forcing machine temperature setting range be 135 ~ 210 ℃ (be respectively 135 ℃, 155 ℃, 175 ℃; 210 ℃), mixed material is added in the forcing machine blend extrusion moulding; Extruded material overlaps, cools off through cold water through molding port mould, typing; Traction, cutting finally obtains active bio filler of the present invention.
Prepared active filler is used for the underload municipal wastewater handles, improve the quantity of nitrifier, economical, fast existing Sewage Plant is carried the mark upgrading, satisfy the dephosphorization denitrogenation requirement.Living weight on the filler can reach 12-20g/m
2, NH
3-N clearance is more than 95%.Sewage Plant influent quality: COD=304mg/l, BOD=121mg/l, NH
3-N=31.7mg/l adopts three sections AO technologies, adds the active bio filler 30% (holding according to the pond) of present embodiment preparation at Aerobic Pond; Three sections dissolved oxygens are controlled at 1.2-1.8mg/l respectively, and 1.5-2.0mg/l is about 2.5mg/l; Effluent quality is: COD=30mg/l, BOD=3mg/l, NH
3-N=0.7mg/l removes efficient and is respectively: 90.1%, 97.5%, 97.8%.Microscopy nitrifier quantity is apparently higher than activated sludge process, and through test mixing liquid suspended sediment concentration MLSS, the living weight above the filler can reach 12-20g/m
2
Embodiment 2
By weight taking by weighing enzymatic activity regulator FeCl
22 parts, CuCl
22 parts, MnBr
22 parts, CaBr
23 parts and ZnCl
23 parts, 1.5 parts of modifier Triple Pressed Stearic Acid add in the impeller and mixed 5 minutes, take by weighing 86.5 parts of extrusion grade new LDPE (film grade)s (melt index is 2.0g/10min) again, add and continue to mix discharging 1 minute.Each section of forcing machine temperature setting range is 135 ~ 170 ℃ (are respectively 135 ℃, 155 ℃, 170 ℃); Mixed material is added in the forcing machine; The blend extrusion moulding, extruded material overlaps, cools off through cold water through molding port mould, typing, traction; Cutting finally obtains active bio filler of the present invention.
The said active filler of preparation is used for the high-concentration sewage processing, is easy to form biological cenobium on the filler, reduce concentration of wastewater rapidly, alleviate the subsequent technique load, shorten the treatment time.COD load: 4.0-6.0kg/ (m
3D) or more than.
Wastewater from vitamin C production is handled and is adopted: anaerobism+MBBR+ catalytic oxidation+deposition.Add the active bio filler of the present embodiment preparation of filling ratio 35% in the MBBR pond, former water is through getting into the MBBR pond after the anaerobism, and the MBBR pond intakes about COD:2000-2500mg/L; Aerobic aeration 8 hours; Dissolved oxygen 2-3mg/L, water outlet is less than 500mg/L, and COD loads at 4.17kg/m
3D.
Embodiment 3
By weight taking by weighing enzymatic activity regulator CuCl
26 parts, MnBr
26 parts, CaBr
26 parts 18 parts, 2 parts of modifiers add in the impeller and mixed 5 minutes, take by weighing extrusion grade EVA80 part again, add and continue to mix discharging 1 minute.Each section of forcing machine temperature setting range is 135 ~ 180 ℃ (are respectively 135 ℃, 150 ℃, 180 ℃); Mixed material is added in the forcing machine; The blend extrusion moulding, extruded material overlaps, cools off through cold water through molding port mould, typing, traction; Cutting finally obtains active bio filler of the present invention.
Prepared active filler is used for high slat-containing wastewater,, is beneficial to the apposition growth of salt tolerant biological bacteria, improve the flora quantity of sewage biochemistry pool, sewage biochemical treatment ability is provided through changing the filler activeconstituents.COD load: more than 3.0kg/ (m3.d) reaches.
Producing VITAMINs, microbiotic and rifamycin drug is main pharmaceutical factory, and its waste water composition is comparatively complicated, and saltiness belongs to high saliferous high density pharmacy waste water up to 4%.Water inlet COD:10000～15000mg/L, NH
3-N:200～400mg/L; Adopt activated sludge process, hydraulic detention time 10.5d, the COD load can only reach 1.0kg/ (m
3D) about.In Aerobic Pond, increase the active bio filler 30% of present embodiment preparation, dissolved oxygen is controlled at more than the 2.5mg/L in the pond, and sewage load rises to 3000T/D, and hydraulic detention time is reduced to 3.5d, water outlet COD:<1000mgL, NH3-N:200～300mg/L, the COD load reaches 3kg/ (m
3D).
Claims (6)
1. the active bio filler of a treatment of high concentration used water difficult to degradate is characterized in that comprising:
Enzymatic activity regulator 3 ~ 18 weight parts,
High molecular polymer 80 ~ 95 weight parts,
Modifier 0.5 ~ 2 weight part;
Wherein, described enzymatic activity regulator is the compound that contains the inorganic active factor, and the described inorganic active factor is selected from Fe
2+, Cu
2+, Mn
2+, Ca
2+Or Zn
2+In one or more; Described high molecular polymer is a kind of in Vestolen PP 7052, Vilaterm, SE, PS, Injecatable EVA Copolymer and the polyester or more than one mixture; Described modifier is Triple Pressed Stearic Acid and/or stearate.
2. the active bio filler of treatment of high concentration used water difficult to degradate according to claim 1 is characterized in that described enzymatic activity regulator contains Fe
2+, Cu
2+, Mn
2+, Ca
2+Or Zn
2+Villaumite or in the bromine salt one or more.
3. the active bio filler of treatment of high concentration used water difficult to degradate according to claim 1 is characterized in that described Vestolen PP 7052 is extrusion grade HPP homopolymer polypropylene, random copolymers or segmented copolymer, and melt index is 0.5 ~ 4g/10min; Described Vilaterm is the extrusion grade new LDPE (film grade), and extrusion grade linear low density polyethylene or extrusion grade high density polyethylene(HDPE), melt index are 0.5 ~ 4g/10min; Described SE is general soft pvc; Described PS is extrusion grade PS; Described polyester is the extrusion grade polyethyleneterephthalate.
4. according to the active bio filler of each described treatment of high concentration used water difficult to degradate in the claim 1 ~ 3, it is characterized in that described active bio filler prepares through following method:
Take by weighing enzymatic activity regulator, modifier and the high molecular polymer of formula ratio, add the abundant mixing of stirrer;
The material that mixes is added to forming production line, adjusts the temperature to 135 ~ 215 ℃, make that material is softening, get work in-process through the mould extrusion moulding;
Work in-process through successively through Vacuum shaping cover typing with after getting into water cooling tank and being cooled to typing fully, under the traction of caterpillar tractor, excision forming.
5. the preparation method of the active bio filler of each described treatment of high concentration used water difficult to degradate in the claim 1 ~ 4 is characterized in that comprising following steps:
Take by weighing enzymatic activity regulator, modifier and the high molecular polymer of formula ratio, add the abundant mixing of stirrer;
The material that mixes is added to forming production line, adjusts the temperature to 135 ~ 215 ℃, make that material is softening, get work in-process through the mould extrusion moulding;
Work in-process through successively through Vacuum shaping cover typing with after getting into water cooling tank and being cooled to typing fully, under the traction of caterpillar tractor, excision forming.
6. the application of the described active bio filler of claim 1 in the treatment of high concentration used water difficult to degradate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102833434A CN102838204A (en) | 2012-08-06 | 2012-08-06 | Active biological filler for treating high-concentration refractory wastewater and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102833434A CN102838204A (en) | 2012-08-06 | 2012-08-06 | Active biological filler for treating high-concentration refractory wastewater and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386805A (en) * | 2014-12-08 | 2015-03-04 | 南京大学 | Method for repairing and regenerating aged suspended biological membrane filler |
| CN106430527A (en) * | 2016-11-22 | 2017-02-22 | 南京大学 | Biocompatible filler and preparation method thereof |
| CN107162171A (en) * | 2017-05-12 | 2017-09-15 | 深圳市绿洲生态科技有限公司 | A kind of composite biological filler and preparation method thereof |
| CN111068638A (en) * | 2018-10-18 | 2020-04-28 | 中国石油化工股份有限公司 | Catalyst for oxidation reaction and application thereof |
| CN113461249A (en) * | 2020-03-30 | 2021-10-01 | 中石化南京化工研究院有限公司 | Terephthalic acid production wastewater treatment method based on biological synergistic means |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386805A (en) * | 2014-12-08 | 2015-03-04 | 南京大学 | Method for repairing and regenerating aged suspended biological membrane filler |
| CN106430527A (en) * | 2016-11-22 | 2017-02-22 | 南京大学 | Biocompatible filler and preparation method thereof |
| CN106430527B (en) * | 2016-11-22 | 2019-04-12 | 南京大学 | A kind of organism compatibility filling and preparation method thereof |
| CN107162171A (en) * | 2017-05-12 | 2017-09-15 | 深圳市绿洲生态科技有限公司 | A kind of composite biological filler and preparation method thereof |
| CN111068638A (en) * | 2018-10-18 | 2020-04-28 | 中国石油化工股份有限公司 | Catalyst for oxidation reaction and application thereof |
| CN113461249A (en) * | 2020-03-30 | 2021-10-01 | 中石化南京化工研究院有限公司 | Terephthalic acid production wastewater treatment method based on biological synergistic means |
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Application publication date: 20121226 |