CN103253776B - Semi-coke microbial carrier and preparation method thereof - Google Patents
Semi-coke microbial carrier and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a semi-coke microbial carrier and a preparation method thereof. The carrier is prepared from semi-coke, polyvinyl alcohol and a cross-linking agent according to the weight part ratio of 100-500:30-100:0.1-0.8. The method comprises the following steps: weighing the semi-coke according to a weight part ratio, adding the semi-coke into a strong acid solution and a strong base solution, and treating and drying to obtain a semi-coke substrate; weighing the polyvinyl alcohol solution and cross-linking agent solution with relative weight according to the weight part ratio, and cross-linking; and adding the semi-coke substrate into the cross-linked polyvinyl alcohol solution, stirring for 2-5 hours, demolding, drying, cooling, pelleting or cutting and forming to obtain the carbon microbial film carrier. By utilizing the large specific surface area (more than 300m<2>/g) and excellent adsorption performance of the modified semi-coke, the adsorption capacity and film culturing amount of the carrier on the microbes and pollutants can be improved, the carrier is further suitable for treatment of high-concentration organic wastewater, and the carrier has high impact load resistance.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of blue charcoal microbe carrier and preparation method thereof.
Technical background
Since the successful operation of biological filter, biomembrance process because of degradation capability strong, duration of contact is short, and the little and cost of investment of floor space is low etc., and advantage is able to fast-developing application in recent years.Ripe because of Wastewater Treated by Activated Sludge Process waster water process, the advantage such as operation, maintenance cost are low remains domestic water and processes the most frequently used method.But activated sludge process floor space is large, excess sludge is many, denitrification effect is poor, the shortcomings such as sludge bulking and sludge loss easily occur, people are by adopting biomembrance process to improve the performance of biochemical treatment.And as microbial carrier material, determined water treatment effect and mass-transfer efficiency in reactor in biomembrance process.Therefore, bio-carrier is the core of biomembrance process water technology.Absorption between biology and bio-carrier, not only relevant with biological characteristic in conjunction with tightness degree, is also closely connected with bio-carrier material property.Therefore, the surface property of bio-carrier, voidage, specific surface area and material have material impact to the mass transfer of biological absorption, carrier and water treatment capacity.Can be used for the material of bio-carrier from inorganic materials (as pottery, rubble, slag, zeolite, gac etc.) to organic polymer material (industrial plastic, as polyethylene, polypropylene, polyvinyl chloride, polyphenyl alkene and various resins etc.) and synthetic organic-inorganic macromolecular material etc., not only consider the performance (physical strength, stability, Biostatic, close hydrophobic nature etc.), specific surface area of carrier, biological consistency etc., also considered the factors such as the drawing materials of material, cost value, manufacturing conditions.
Domestic market widely used inorganic and organic microbial carrier/filler, there are many shortcomings in these bio-carriers, such as material cost is high, complete processing is complicated, also there is the environmental problems such as secondary pollution in part.The shortcomings such as such as the inorganic ceramic material adopting, ubiquity density is large, and porosity is low and specific surface area is little, and the interior fluidization power consumption of reactor is large; Most polymer organic carrier just comes from petrochemical industry derived product, as poor in its wetting abilities such as polypropylene, polyethylene, and microorganism colonization, microbial biomass etc. are poor, and the photodissociation in environment of part material, even environmental organism are had to certain toxicity.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, a kind of blue charcoal microbe carrier and preparation method thereof is provided.Not only biofilm is fast, microorganism capacity is large for this carrier, also for microorganism provides suitable nutrition source, and environmental sound, and the resource utilization method of a kind of economic, practical, the high added value simultaneously also providing for the blue charcoal of low value.
For achieving the above object, a kind of blue charcoal microbe carrier that the present invention is designed, this carrier is: Lan Tan ︰ Ju Yi Xi Chun ︰ linking agent=100 ~ 500 ︰ 30 ~ 100 ︰ 0.1 ~ 0.8 according to weight part ratio.
Further, this carrier is: Lan Tan ︰ Ju Yi Xi Chun ︰ linking agent=200 ~ 400 ︰ 40 ~ 80 ︰ 0.3 ~ 0.8 according to weight part ratio.
Again further, this carrier is: Lan Tan ︰ Ju Yi Xi Chun ︰ linking agent=240 ︰ 80 ︰ 0.6 according to weight part ratio.
Again further, described blue charcoal size is 15 ~ 300 orders.
Again further, described linking agent is glutaraldehyde, formaldehyde or oxalic dialdehyde.
The present invention also provides a kind of preparation method of blue charcoal microbe carrier, comprises the following steps:
1) by described weight part ratio, take blue charcoal, blue charcoal is added in strong acid solution, treatment time 2 ~ 5h;
2) the blue charcoal after processing is adopted to strong base solution dipping 0.5 ~ 2h, be washed till neutrality, then clean 1 ~ 3 time with tap water, dry 1 ~ 2h makes blue charcoal matrix;
3) by described weight part ratio, measure polyvinyl alcohol solution and the cross-linking agent solution of relative weight;
4) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 10 ~ 24h;
5) by step 2) the blue charcoal matrix of gained adds in the polyvinyl alcohol solution after crosslinked and stirs 2 ~ 5h, and polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
6) the blue charcoal matrix/polyvinyl alcohol blend of step 5) gained matter is poured on bright and clean glass plate or in the mould of the easily demoulding, dries or air-dry;
7) after demoulding, after taking-up, under 80 ~ 150 ℃ of conditions, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
As preferred version, in described step 1), blue charcoal size is 15 ~ 300 orders.
As preferred version, in described step 1), the mass concentration of strong acid solution is that 10 ~ 50% temperature are 80 ~ 100 ℃, and strong acid solution is salpeter solution, hydrochloric acid soln or sulphuric acid soln.
As preferred version, described step 2) in, the mass concentration of strong base solution is 6.4 ~ 31.7%, and drying temperature is 90 ~ 110 ℃, and strong base solution is sodium hydroxide solution, potassium hydroxide solution or aqua calcis.
As preferred version, in described step 3), polyvinyl alcohol solution quality solubility is 3 ~ 10%, and cross-linking agent solution is that mass concentration is 0.5 ~ 1.5% glutaraldehyde solution, formaldehyde solution or glyoxal solution.
Advantage of the present invention is as follows:
(1) utilize the huge specific surface area (>300m of the blue charcoal of modification
2/ g) and good absorption property, can improve carrier to the adsorptive power of microorganism and pollutent and biofilm amount, and then be conducive to adapt to the processing of high concentrated organic wastewater, and there is higher anti impulsion load ability;
(2) by controlling the burnt grain of blue charcoal and polyvinyl alcohol solution concentration, can regulate the density of this microbe carrier;
(3) this carrier polyvinyl alcohol is Biodegradable material, in the not enough situation of carbon source, can be used as microbe carbon source;
(4) this microbe carrier is drawn materials conveniently, good to bioaffinity, can be to environment, and the discarded carrier in system operational process enters biochemical sludge, can deliver to coal yard coal blending workshop and use as raw material or raw materials for sintering.
(5) to choose the particle diameter of blue charcoal be 15 ~ 300 orders in the present invention, conversion particle diameter diameter 1mm～0.05mm.Experiment shows, if particle diameter is too large, and while being greater than 300mu, biofilm carrier easily runs off together with mud; Particle diameter is less than 15 orders, and specific surface area is relatively little, and adsorptive power is poor, in addition, because blue charcoal, density own are large, easily sinks, and therefore, needs larger aeration just can be suspended in solution, also increases blower power, has caused energy consumption increase.Through experimental analysis, it is most suitable that particle diameter is selected 15～300 orders.
(6) preparation method of the present invention is simple, and required equipment is few, and preparation cost is low.
(7) the blue charcoal that the present invention selects claims again semicoke, fixed carbon is high, higher than resistance, chemically reactive is high, contain the characteristic that ash is low, sulfur is low and phosphorus is low, it is main mainly with low-temperature pyrolysis that blue charcoal is produced, pyrolysis temperature is generally 600 ℃ of left and right, high because having fixed carbon, volatile components content is high, very easily pore-forming, therefore specific surface area is larger, adsorptive power is stronger.The present invention utilizes blue charcoal particle porosity high, and characterization of adsorption is strong, and biological attachment amount is large, and after PVA blend masking, is convenient to germs collect in active sludge, sticks.
Accompanying drawing explanation
Fig. 1 is the blue charcoal microbe carrier scanning electron microscope (SEM) photograph (SEM) of the present invention.
Embodiment
Below in conjunction with specific embodiment, a kind of blue charcoal microbe carrier of the present invention and preparation method thereof is described in further detail.
Embodiment 1
1) taking 50g size is the blue charcoals of 200 objects, blue charcoal is added in the salpeter solution that 80 ℃ of mass concentrations are 10% to treatment time 4h;
2) the blue charcoal after processing is adopted under the sodium hydroxide solution normal temperature that mass concentration is 31.7% and floods 1h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 2h makes blue charcoal matrix;
3) 3g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 97mL100 ℃, obtains 3% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 3.2mL is 2.5%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 20h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 3h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 110 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.48g/cm
3, in solution, density is about 1.25g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 62h, record its chemical oxygen demand (COD) (COD) and surpass 90%, than adding bio-carrier, approximately do not improved 38%; Its total nitrogen (TN) clearance surpasses 45%, than adding bio-carrier, has not approximately improved 22%.
Embodiment 2
1) taking 10g size is the blue charcoals of 300 objects, blue charcoal is added in the salpeter solution that 100 ℃ of mass concentrations are 50% to treatment time 2h;
2) the blue charcoal after processing is adopted under the sodium hydroxide solution normal temperature that mass concentration is 20% and floods 0.5h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 80 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 6g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 94mL100 ℃, obtains 6% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 2mL is 0.5%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 10h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 2h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 150 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.42g/cm
3, in solution, density is about 1.15g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 55h, record its chemical oxygen demand (COD) (COD) and surpass 92%, than adding bio-carrier, approximately do not improved 35%; Its total nitrogen (TN) clearance surpasses 46%, than adding bio-carrier, has not approximately improved 21%.
Embodiment 3
1) taking 20g size is the blue charcoals of 15 objects, blue charcoal is added in the salpeter solution that 100 ℃ of mass concentrations are 20% to treatment time 5h;
2) the blue charcoal after processing is adopted under the aqua calcis normal temperature that mass concentration is 6.4% and floods 2h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 90 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 8g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 92mL100 ℃, obtains 8% polyvinyl alcohol solution;
4) measure the glutaraldehyde solution that the mass concentration of 2mL is 1.5%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 24h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 80 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.45g/cm
3, in solution, density is about 1.20g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 60h, record its chemical oxygen demand (COD) (COD) and surpass 90%, than adding bio-carrier, approximately do not improved 35%; Its total nitrogen (TN) clearance surpasses 45%, than adding bio-carrier, has not approximately improved 21%.
Embodiment 4
1) taking 40g size is the blue charcoals of 200 objects, blue charcoal is added in the hydrochloric acid soln that 100 ℃ of mass concentrations are 20% to treatment time 5h;
2) the blue charcoal after processing is adopted under the potassium hydroxide solution normal temperature that mass concentration is 10.4% and floods 0.5h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 4g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 96mL100 ℃, obtains 4% polyvinyl alcohol solution;
4) measure the formaldehyde solution that the mass concentration of 2mL is 1.5%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 24h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 110 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.42g/cm
3, in solution, density is about 1.10g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 50h, record its chemical oxygen demand (COD) (COD) and surpass 85%, than adding bio-carrier, approximately do not improved 30%; Its total nitrogen (TN) clearance surpasses 40%, than adding bio-carrier, has not approximately improved 15%.
Embodiment 5
1) taking 24g size is the blue charcoals of 200 objects, blue charcoal is added in the hydrochloric acid soln that 100 ℃ of mass concentrations are 20% to treatment time 5h;
2) the blue charcoal after processing is adopted under the potassium hydroxide solution normal temperature that mass concentration is 30% and floods 0.5h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 8g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 92mL100 ℃, obtains 8% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 4mL is 2.0%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 4h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 110 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.50g/cm
3, in solution, density is about 1.40g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 70h, record its chemical oxygen demand (COD) (COD) and surpass 95%, than adding bio-carrier, approximately do not improved 45%; Its total nitrogen (TN) clearance surpasses 55%, than adding bio-carrier, has not approximately improved 30%.
Embodiment 6
1) taking 50g size is the blue charcoals of 15 objects, blue charcoal is added in the hydrochloric acid soln that 80 ℃ of mass concentrations are 50% to treatment time 2h;
2) the blue charcoal after processing is adopted under the potassium hydroxide solution normal temperature that mass concentration is 31.7% and floods 2h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 3g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 97mL100 ℃, obtains 3% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 2.5mL is 1.0%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 24h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 150 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.80g/cm
3, in solution, density is about 1.45g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 60h, record its chemical oxygen demand (COD) (COD) clearance and surpass 95%, than adding bio-carrier, approximately do not improved 45%; Its total nitrogen (TN) clearance surpasses 60%, than adding bio-carrier, has not approximately improved 22%.
Embodiment 7
1) taking 25g size is the blue charcoals of 150 objects, blue charcoal is added in the salpeter solution that 90 ℃ of mass concentrations are 20% to treatment time 2h;
2) the blue charcoal after processing is adopted under the sodium hydroxide solution normal temperature that mass concentration is 15.9% and floods 1h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 5g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 95mL100 ℃, obtains 5% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 2.5mL is 1.0%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 24h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 150 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.70g/cm
3, in solution, density is about 1.32g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 60h, record its chemical oxygen demand (COD) (COD) clearance and surpass 92%, than adding bio-carrier, approximately do not improved 38%; Its total nitrogen (TN) clearance surpasses 55%, than adding bio-carrier, has not approximately improved 19%.
Embodiment 8
1) taking 10g size is the blue charcoals of 300 objects, blue charcoal is added in the salpeter solution that 100 ℃ of mass concentrations are 10% to treatment time 5h;
2) the blue charcoal after processing is adopted under the sodium hydroxide solution normal temperature that mass concentration is 6.4% and floods 0.5h, be washed till neutrality, then clean 1 ~ 3 time with tap water, under 100 ℃ of conditions, dry 1h makes blue charcoal matrix;
3) 10g polyvinyl alcohol (polymerization degree is greater than 1750) is dissolved in to return stirring 8h in the boiling water of 90mL100 ℃, obtains 10% polyvinyl alcohol solution;
4) measure the glyoxal solution that the mass concentration of 2mL is 0.5%;
5) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 24h;
6) by step 2) in blue charcoal matrix add in the polyvinyl alcohol solution after crosslinked and stir 5h, polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
7) blue charcoal matrix/polyvinyl alcohol blend matter in step 6) is poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
8) after demoulding, after taking-up, in the baking box of 80 ℃, carry out bake drying, cooling after, granulation or excision forming, obtain carbonaceous microbial membrane carrier.
After testing, the prepared dry rear density of the blue charcoal bio-carrier of finished product of the present embodiment method is 0.45g/cm
3, in solution, density is about 1.20g/cm
3, under the disturbance of aeration solution, can be suspended in solution.In utilizing the experiment of aerobic, anaerobism all-in-one fluidization bed biofilm reactor Treatment of Wastewater in Coking, at hydraulic detention time (HRT) 60h, record its chemical oxygen demand (COD) (COD) and surpass 90%, than adding bio-carrier, approximately do not improved 35%; Its total nitrogen (TN) clearance surpasses 45%, than adding bio-carrier, has not approximately improved 21%.
Claims (4)
1. a preparation method for blue charcoal microbe carrier, this carrier according to weight part ratio is: blue charcoal ︰ gathers second alkene alcohol ︰ linking agent=200～400 ︰ 40～80 ︰ 0.3～0.8, and wherein, described linking agent is glutaraldehyde, formaldehyde or oxalic dialdehyde; It is characterized in that: comprise the following steps:
1) by described weight part ratio, take blue charcoal, blue charcoal is added in strong acid solution, treatment time 2～5h;
2) the blue charcoal after processing is adopted to strong base solution dipping 0.5～2h, be washed till neutrality, then clean 1～3 time with tap water, dry 1～2h makes blue charcoal matrix;
3) by described weight part ratio, measure glyoxal solution or formaldehyde solution or the glutaraldehyde solution that polyvinyl alcohol solution that the mass concentration of relative weight is 3～10% and mass concentration are 0.5～1.5%;
4) polyvinyl alcohol solution and cross-linking agent solution are cross-linked to 10～24h;
5) by step 2) the blue charcoal matrix of gained adds in the polyvinyl alcohol solution after crosslinked and stirs 2～5h, and polyvinyl alcohol gel can be evenly coated in above blue charcoal matrix;
6) by step 5) blue charcoal matrix/polyvinyl alcohol blend matter be poured on bright and clean glass plate or the mould of the easily demoulding in, dry or air-dry;
7) after demoulding, after taking-up, under 80～150 ℃ of conditions, carry out bake drying, cooling after, granulation or excision forming, obtain blue carbonaceous microbial membrane carrier.
2. the preparation method of blue charcoal microbe carrier according to claim 1, is characterized in that: described step 1), blue charcoal size is 15～300 orders.
3. according to the preparation method of blue charcoal microbe carrier described in claim 1 or 2, it is characterized in that: described step 1), the mass concentration of strong acid solution is that 10～50% temperature are 80～100 ℃, and strong acid solution is salpeter solution, hydrochloric acid soln or sulphuric acid soln.
4. the product that described in a claim 1, the preparation method of blue charcoal microbe carrier obtains.
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| CN104628123B (en) * | 2015-01-28 | 2016-06-01 | 苏州赛华仪控股份有限公司 | A kind of modification biological slag microbe carrier and its preparation method |
| CN107285851A (en) * | 2017-06-15 | 2017-10-24 | 西施生态科技股份有限公司 | A kind of matrix of ornamental plant introducing and planting and its preparation |
| CN108217976A (en) * | 2018-01-29 | 2018-06-29 | 青岛净界生态技术有限公司 | A kind of bionic aquatic weed method of modifying |
| CN110980932B (en) * | 2019-11-26 | 2022-06-03 | 兰州交通大学 | Oil shale semicoke/polyvinyl alcohol composite immobilized carrier and preparation method thereof |
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