CN102826646A - Catalytic iron internal electrolysis biological fluidization filler and preparation method thereof - Google Patents
Catalytic iron internal electrolysis biological fluidization filler and preparation method thereof Download PDFInfo
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- CN102826646A CN102826646A CN2011101649773A CN201110164977A CN102826646A CN 102826646 A CN102826646 A CN 102826646A CN 2011101649773 A CN2011101649773 A CN 2011101649773A CN 201110164977 A CN201110164977 A CN 201110164977A CN 102826646 A CN102826646 A CN 102826646A
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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
Abstract
The invention discloses a catalytic iron internal electrolysis biological fluidization filler and a preparation method thereof, falling into the field of wastewater treatment. The filler comprises the following materials by weight: 10-15% of a casing, 80-90% of catalytic iron, and 0-5% of specific gravity regulating material. The preparation method comprises the steps of pressing catalytic iron into catalytic iron internal electrolysis material of certain shape, and filling the catalytic iron internal electrolysis material and specific gravity regulating material into the casing, or directly filling the catalytic iron internal electrolysis material into the casing with regulating function, to obtain fluidizable biological filler. According to the invention, the defect of easy blocking of catalytic iron internal electrolysis is solved, while the technical merits of catalytic iron internal electrolysis filler, such as low cost, easy availability, environment friendliness, strong reducing ability, good effect, and wide pH adaptability, are fully retained.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of catalytic internal electrolysis of iron organism fluidization filler and preparation method thereof.
Background technology
In order to improve microbial biomass and the activity in the biological treatment of waste water system, science and technology and engineering staff have developed multiple bio-carrier.Mounting means according to filler is different, can be divided into fixed and fluidised.The former is like soft, semi soft packing, combined stuffing, elastic filler etc.; Though these filler prices are lower; But installation needs corresponding stuffing frame; Increase the difficulty that investment and filler are changed incessantly, and influenced the maintenance and the replacing of the relevant water treating equipment (like equipment such as aeration, stirring, water distributions) under the filler.And fluidized packing material uses, changes conveniently; Can adjust dosage according to actual needs at any time; Therefore fluidized packing material becomes the research of bio-carrier and uses focus at present; Also developed multiple multi-form fluidized packing material; 200720128864.7), " a kind of efficient denitrification water treatment fluidized packing " (number of patent application: 200720128865.1), " hollow tooth-shape fluidized filling " (number of patent application: 200510116790.0), " polyhedral fluidized packing material " (number of patent application: 200610137088.7), " the organism fluidization filler of improvement " (number of patent application: 200520128198.85) etc. like " a kind of circulating water treatment fluidized packing " (number of patent application:; The main purpose of developing these fillers is in order to be the specific surface area that increases filler, to reduce the fluidisation required drive, to improve the service efficiency of filler etc., and other effects are less relatively.In order further to improve the fluidisation carrier filler to contaminant removal efficiency; Developed fluidized packing material with biocatalysis; (number of patent application: 200410018319.3), this filler is processed a certain proportion of gac, ultra high molecular polyethylene, iron, four kinds of materials of manganese through 500-560 ℃ of high-temperature roasting like " preparation method who is used for the biocatalysis combined stuffing of biological fluidized bed ".Because the existence of iron, manganese has increased electron transfer function on the one hand, has improved biological rate of metabolism; Can also impel biological process efficient completion under oxygen free condition on the other hand, enlarge the use range of filler.Can find out that such filler manufacturing conditions is had relatively high expectations, and has limited it and has applied.
The catalytic internal electrolysis of iron technology can be converted into low toxicity or nontoxic readily biodegradable material with the poisonous and hazardous Persistent organic pollutants in the waste water through the reductive method; Produced simultaneously iron ion can be with calcium phosphate precipitation; Stimulate the metabolism of mikrobe; Strengthen the carrier surface forming biofilm property of traditional biological carrier; Promote the propagation of nitrobacteria; 200510029765.9), " method of reduction by catalytic iron and anaerobic hydrolysis-acidification associated treatment trade effluent " (number of patent application: 20081019601.0) therefore both can be used as the individual curing unit, also can use, like " filler of a kind of catalytic internal electrolysis of iron sewage water treatment method and use thereof " (number of patent application: with the biologic treating technique combination.This method requires low to external conditionss such as pH, therefore convenient in application is used in engineering, has obtained the ideal effect.But in practical application,, in system, exist with stationary state usually because electrolysis filler in catalytic iron is heavier; Although the filler bulk specific gravity that is therefore adopted is less; The filler voidage reaches more than 95%, but along with the prolongation of working time, latch up phenomenon inevitably occurs; Hindered waste water to contact, reduced treatment effect with the direct of filler.In addition, the installation of conventional catalyst iron filler needs special bracing frame, installs, changes difficulty.So when using such electrolysis filler in catalytic iron, have to consider how to reduce the generation of such phenomenon and take all measures, this influenced to a certain extent should technology apply.
Summary of the invention
The purpose of this invention is to provide a kind of catalytic internal electrolysis of iron organism fluidization filler.
Another object of the present invention provides a kind of preparation method of above-mentioned catalytic internal electrolysis of iron organism fluidization filler.
Technical scheme of the present invention is following:
The invention provides a kind of catalytic internal electrolysis of iron organism fluidization filler, this catalytic internal electrolysis of iron organism fluidization filler comprises following component and weight percentage:
Shell 10-15%,
Catalysis iron 80-90%,
Specific gravity-adjusting material 0-5%.
Described shell is selected from Vilaterm or polypropylene material for the macromolecular material that existing suspended biological carrier can adopt.
In described catalysis iron chosen from Fe wood shavings or the copper turnings one or both; Wherein, iron plane is spent and is the scrap stock after the cast iron processing, carbon content 0.05-0.5% in the iron, and iron plane flower thickness 1.0-2.0mm is ductile and tensile strength, outside the deironing wood shavings, other impurity (like dust, foreign material etc.)≤2%; Copper turnings is the red copper material, thickness 0.5-1.0mm, and length 5-150mm, mean length is 60mm, width is 2-20mm.
Described specific gravity-adjusting material is selected from the material of apparent specific gravities such as porous plastics or hollow baton round less than water; Or directly utilize Vilaterm or polypropylene material to process webbed hemisphere spherical crown as shell; Non-hole part hollow when each hemisphere spherical crown is made; Form air bag, can produce buoyancy, obtain having the shell of proportion regulatory function.
The present invention also provides a kind of preparation method of above-mentioned catalytic internal electrolysis of iron organism fluidization filler, and this method may further comprise the steps:
Catalysis iron is pressed into the catalytic internal electrolysis of iron material of definite shape; Catalytic internal electrolysis of iron material and specific gravity-adjusting material are filled in the shell; Perhaps the catalytic internal electrolysis of iron material directly is filled in the shell with regulatory function, thereby but processes the fluidizing biologic packing material.
Described catalysis iron is pressed into the catalytic internal electrolysis of iron material of definite shape; May further comprise the steps: iron plane flower and copper turnings according to 10: 1～20: 1 mixed of mass ratio, and are pressed into that bulk specific gravity is 0.15～0.30, diameter is the crown catalytic internal electrolysis of iron material of spherical or hemisphere of 35～145mm; Or earlier the iron plane flower is pressed into the cell block of same bulk specific gravity, diameter, shape, according to the ratio copper facing of mass ratio 0.2%～1.0%, plating palladium or silver-plated etc., can make the catalytic internal electrolysis of iron material then.
Described shell is the spherical biological floating stuffing of two hemisphere hats; Or processing of high molecular material is made into outside diameter is that 40-150mm and interior diameter are two netted hemisphere spherical crowns of 35-145mm; Porosity is 35-65%, and the non-hole part of each hemisphere spherical crown hollow forms air bag; Wherein, macromolecular material is selected from Vilaterm or polypropylene material.
Described air bag formed buoyancy in water equals 0.95-1.05 times of combined stuffing generation gravity; The gravity that combined stuffing produces comprises: the gravity that filler shell itself produces and the gravity of inner catalytic internal electrolysis of iron material production, thus make filler itself can directly suspend perhaps at small turbulent fluctuation condition low suspension in water; With the resulting catalytic internal electrolysis of iron organism fluidization of these class methods filler; Shell has played the proportion regulatory function simultaneously; Therefore the catalysis iron material in such catalytic internal electrolysis of iron organism fluidization filler partly accounts for the 85%-90% of gross weight; Sheating material accounts for the 10%-15% of gross weight, and specific gravity-adjusting material is 0%.
Described specific gravity-adjusting material additional proportion equals 0.95-1.05 times of combined stuffing generation gravity with its buoyancy that in water, forms; The gravity that combined stuffing produces comprises: the gravity that the gravity that shell produces, the gravity of inner catalytic internal electrolysis of iron material production and specific gravity-adjusting material itself produce, thus make filler itself can directly suspend perhaps at small turbulent fluctuation condition low suspension in water.Make resultant its catalysis iron material of catalytic internal electrolysis of iron organism fluidization filler with these class methods and account between the 85%-90% of whole filler weight, specific gravity-adjusting material accounts between the 1%-5%, and sheating material accounts between the 10%-15%.
As stated; The electrolysis filler in catalytic iron piece combines with sheating material and specific gravity-adjusting material must be firmly; And follow biological attachment material (as the combined stuffing shell) outside, and electrolysis filler in catalytic iron is in interior principle, to give full play to function separately.In addition, sheating material must have enough big space (35%～65%), even after microbial film forms, can make that also waste water gets into electrolysis filler in catalytic iron inside smoothly.
This invention makes that through using specific gravity-adjusting material dexterously electrolysis filler in catalytic iron can suspend, fluidisation, is guaranteeing to efficiently solve the blockage problem that conventional catalyst internal electrolysis of iron filler in use possibly occur under the catalytic internal electrolysis of iron treatment effect.Combine with existing bio-carrier in addition, both strengthened the carrier surface forming biofilm property of existing biological attachment material, thereby increase living weight and activity, the reductive condition of catalytic internal electrolysis of iron has also been guaranteed in biological simultaneously effect, has reduced the consumption of iron.
The gordian technique of this invention is the control of specific gravity-adjusting material, and promptly in making processes, the buoyancy that requires specific gravity-adjusting material to produce equals the gravity of 0.95～1.05 times integrally combined filler.
The present invention compares with prior art, has following advantage and beneficial effect:
1. the invention solves the shortcoming of catalytic internal electrolysis of iron easy blocking, fully kept the technological merit of electrolysis filler in catalytic iron again, like cheap and easy to get, environmental sound, reducing power is strong, effective, applicable pH range is wide etc.
2. filling carrier making method of the present invention is simple, and material is easy to get, and both can utilize some waste materials, also can make full use of existing filler or filler manufacturing technology, and need not specific installation or technology.
3. it is convenient that filling carrier of the present invention uses, changes, and can be used for different pond shapes, also can be used for anaerobism, anoxic, different environmental conditions such as aerobic.
4. the present invention has realized catalytic internal electrolysis of iron and biological intercoupling, and has brought into play both synergies.The iron ion that catalytic internal electrolysis of iron produces can directly change the carrier surface forming biofilm property of outside biological attachment carrier, therefore need not existing bio-carrier is carried out surface activation process, and outside biology is also had strengthening effect.And outside owing to cover microbial film, guaranteed inner catalytic internal electrolysis of iron be in detest, anoxic condition, give full play to its reducing power, reduced the consumption of iron.
Embodiment
Below in conjunction with embodiment the present invention is further described.
Embodiment 1
Scrap stock after the cast iron processing-iron plane flower and copper turnings are proportionally processed the spherical catalysis iron unit material that diameter is 95mm at 10: 1, and bulk specific gravity is 0.15, and wherein used iron plane flower carbon content is 0.5%; Iron plane flower thickness is 2.0mm, is ductile and tensile strength, outside the deironing wood shavings; Other impurity is 2%, and used copper turnings adopts copper sheet to process, and thickness is 1.0mm; Length is 100mm, and width is 15mm.Utilize polythene material in addition, the making outside diameter is 100mm, the netted hemisphere spherical crown of interior diameter 95mm; Its porosity is 55%; The non-hole part of each hemisphere spherical crown hollow forms air bag, the buoyancy of this housing equal the gravity of housing own and spherical catalysis iron unit material gravity and 0.95 times.Be positioned over spherical catalysis iron unit material in two crown housings of hemisphere; Merge fixing; Catalysis iron material in the final catalytic internal electrolysis of iron organism fluidization filler that obtains partly accounts for 90% of gross weight, and shell (itself has regulatory function) accounts for 10% of gross weight, specific gravity-adjusting material 0%.The filler that obtains thrown in the pilot scale CAST pond of handling chemical industrial park waste water be in suspended state, can realize fluidisation having under the aeration situation.Through behind the 7d, the biologic packing material surface is covered with microbial film, and microscopy is found its biota and abundant, and inside is in anoxic condition.It is good that long-time running finds that inner electrolysis filler in catalytic iron is still crossed the water-based ability, latch up phenomenon do not occur.
Embodiment 2
Just the scrap stock after the cast iron processing-iron plane flower and copper turnings are proportionally processed the crown catalysis iron of the hemisphere unit material that diameter is 145mm at 15: 1, and bulk specific gravity is 0.2, and wherein used iron plane flower carbon content is 0.05%; Iron plane flower thickness is 1.0mm, is ductile and tensile strength, outside the deironing wood shavings; Other impurity is 2%, and used copper turnings adopts copper sheet to process, and thickness is 0.5mm; Length is 150mm, and width is 5mm.It is in the spherical suspending filling material of 150mm that the catalytic internal electrolysis of iron material is placed into existing diameter, places porous plastics in catalysis iron unit material center, makes the buoyancy of porous plastics equal 1.0 times of whole catalytic internal electrolysis of iron organism fluidization filler gravity.The final catalytic internal electrolysis of iron organism fluidization filler catalysis iron that forms partly accounts for 80% of gross weight, and shell accounts for 13%, and specific gravity-adjusting material is 2%.The direct input in the pilot scale CAST pond of handling chemical industrial park waste water of this filler is in suspended state, under the aeration situation, can realizes fluidisation.Through behind the 7d, the biologic packing material surface is covered with microbial film, and microscopy is found its biota and abundant, and inside is in anoxic condition.It is good that long-time running finds that inner electrolysis filler in catalytic iron is still crossed the water-based ability, latch up phenomenon do not occur.Same suspending carrier is directly thrown in the pilot scale hydrolysis acidification pool of handling chemical industrial park waste water, makes it be in the suspension fluidized state, and through behind the 10d, the filler outside also covers with mikrobe.Long-time running finds that latch up phenomenon does not appear in inside.
Embodiment 3
Just the scrap stock after the cast iron processing-iron plane flower and copper turnings are proportionally processed the crown catalysis iron of the hemisphere unit material that diameter is 36mm at 20: 1, and bulk specific gravity is 0.3, and wherein used iron plane flower carbon content is 0.1%; Iron plane flower thickness is 1.5mm, is ductile and tensile strength, outside the deironing wood shavings; Other impurity is 1%, and used copper turnings adopts copper sheet to process, and thickness is 0.5mm; Length is 50mm, and width is 10mm.This inner electrolytic material is put into the shell that diameter is 38mm; The specific gravity-adjusting material that interpolation is made with foam (buoyancy that foam produces equals 0.95 times of the final whole combined stuffing gravity that forms); Shell is fixed, the catalytic internal electrolysis of iron organism fluidization filler that formation can suspend in water, the catalysis siderophore in this fluidized packing material partly accounts for 85% of gross weight; Shell accounts for 10%, and specific gravity-adjusting material accounts for 5%.This filler is used to handle glyphosate waste water, under the waterpower stirring condition, realizes fluidisation, its long-term disposal effect is better than fixed electrolysis filler in catalytic iron system, and dephosphorizing rate has improved about 20%.And latch up phenomenon is not found in 1 month operation, and its treatment effect does not descend yet.
The above-mentioned description to embodiment is can understand and use the present invention for ease of the those of ordinary skill of this technical field.The personnel of skilled obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. catalytic internal electrolysis of iron organism fluidization filler, it is characterized in that: this catalytic internal electrolysis of iron organism fluidization filler comprises following component and weight percentage:
Shell 10-15%,
Catalysis iron 80-90%,
Specific gravity-adjusting material 0-5%.
2. catalytic internal electrolysis of iron organism fluidization filler according to claim 1 is characterized in that: described shell is selected from Vilaterm or polypropylene material for the macromolecular material that existing suspended biological carrier can adopt.
3. catalytic internal electrolysis of iron organism fluidization filler according to claim 1 is characterized in that: one or both in described catalysis iron chosen from Fe wood shavings or the copper turnings.
4. catalytic internal electrolysis of iron organism fluidization filler according to claim 3 is characterized in that: described iron plane is spent and is the scrap stock after the cast iron processing, carbon content 0.05-0.5% in the iron, and iron plane flower thickness 1.0-2.0mm, outside the deironing wood shavings, other impurity≤2%; Described copper turnings is the red copper material, thickness 0.5-1.0mm, and length 5-150mm, width are 2-20mm.
5. catalytic internal electrolysis of iron organism fluidization filler according to claim 1; It is characterized in that: described specific gravity-adjusting material is selected from porous plastics or hollow baton round; Or directly utilize Vilaterm or polypropylene material to process webbed hemisphere spherical crown as shell; Non-hole part hollow when each hemisphere spherical crown is made forms air bag, the shell that obtains having the proportion regulatory function.
6. the preparation method of the arbitrary described catalytic internal electrolysis of iron organism fluidization filler of claim 1 to 5; It is characterized in that: this method may further comprise the steps: the catalytic internal electrolysis of iron material that catalysis iron is pressed into definite shape; Catalytic internal electrolysis of iron material and specific gravity-adjusting material are filled in the shell; Perhaps the catalytic internal electrolysis of iron material directly is filled in the shell with regulatory function, thereby but processes the fluidizing biologic packing material.
7. the preparation method of catalytic internal electrolysis of iron organism fluidization filler according to claim 6; It is characterized in that: described catalysis iron is pressed into the catalytic internal electrolysis of iron material of definite shape; May further comprise the steps: iron plane flower and copper turnings according to 10: 1～20: 1 mixed of mass ratio, and are pressed into that bulk specific gravity is 0.15～0.30, diameter is the crown catalytic internal electrolysis of iron material of spherical or hemisphere of 35～145mm; Or earlier the iron plane flower is pressed into the cell block of same bulk specific gravity, diameter, shape, according to ratio copper facing, the plating palladium or silver-plated of mass ratio 0.2%～1.0%, can make the catalytic internal electrolysis of iron material then.
8. the preparation method of catalytic internal electrolysis of iron organism fluidization filler according to claim 6; It is characterized in that: described shell is the spherical biological floating stuffing of two hemisphere hats; Or processing of high molecular material is made into outside diameter is that 40-150mm and interior diameter are two netted hemisphere spherical crowns of 35-145mm; Porosity is 35-65%, and the non-hole part of each hemisphere spherical crown hollow forms air bag; Wherein, macromolecular material is selected from Vilaterm or polypropylene material.
9. the preparation method of catalytic internal electrolysis of iron organism fluidization filler according to claim 8; It is characterized in that: described air bag formed buoyancy in water equals 0.95-1.05 times of combined stuffing generation gravity, and the gravity that combined stuffing produces comprises: the gravity that filler shell itself produces and the gravity of inner catalytic internal electrolysis of iron material production; With the resulting catalytic internal electrolysis of iron organism fluidization of this method filler, the catalysis iron material partly accounts for the 85%-90% of gross weight, and sheating material accounts for the 10%-15% of gross weight.
10. the preparation method of catalytic internal electrolysis of iron organism fluidization filler according to claim 6; It is characterized in that: described specific gravity-adjusting material additional proportion equals 0.95-1.05 times of combined stuffing generation gravity with its buoyancy that in water, forms; The gravity that combined stuffing produces comprises: the gravity that the gravity that shell produces, the gravity of inner catalytic internal electrolysis of iron material production and specific gravity-adjusting material itself produce; Make resultant catalytic internal electrolysis of iron organism fluidization filler with this method; Its catalysis iron material accounts for the 85%-90% of whole filler weight, and specific gravity-adjusting material accounts for 1%-5%, and sheating material accounts for 10%-15%.
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| CN106830312A (en) * | 2017-03-13 | 2017-06-13 | 江苏省环境科学研究院 | A kind of anaerobism composite biological packing of magnet adsorption Zero-valent Iron |
| CN107055750A (en) * | 2016-12-16 | 2017-08-18 | 北京桑德环境工程有限公司 | A kind of fixation of microbe reactor and its reuse method |
| CN108503150A (en) * | 2018-06-06 | 2018-09-07 | 湖南航天凯天水务有限公司 | A kind of optimization integrated sewage treating apparatus |
| CN109748380A (en) * | 2018-08-29 | 2019-05-14 | 郑州轻工业学院 | A kind of combined bio filler and preparation method thereof of nickel foam and iron carbon |
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Application publication date: 20121219 |