CN103752285A - Absorbent material for water body purification and biological carbon brick - Google Patents
Absorbent material for water body purification and biological carbon brick Download PDFInfo
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- CN103752285A CN103752285A CN201410008599.3A CN201410008599A CN103752285A CN 103752285 A CN103752285 A CN 103752285A CN 201410008599 A CN201410008599 A CN 201410008599A CN 103752285 A CN103752285 A CN 103752285A
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- sorbing material
- filter membrane
- biological brick
- brick fuel
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 239000011449 brick Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000746 purification Methods 0.000 title claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910052799 carbon Inorganic materials 0.000 title abstract description 14
- 239000002250 absorbent Substances 0.000 title abstract description 7
- 230000002745 absorbent Effects 0.000 title abstract description 7
- 238000009792 diffusion process Methods 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims abstract description 24
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 15
- 231100000719 pollutant Toxicity 0.000 claims abstract description 15
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 8
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 101150096185 PAAS gene Proteins 0.000 claims abstract 7
- 239000003610 charcoal Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 30
- 239000000446 fuel Substances 0.000 claims description 28
- 230000004888 barrier function Effects 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000003431 cross linking reagent Substances 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 12
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 9
- 229920000936 Agarose Polymers 0.000 claims description 9
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 8
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 6
- 239000012279 sodium borohydride Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000000017 hydrogel Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012498 ultrapure water Substances 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001681 protective effect Effects 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000005899 aromatization reaction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- -1 stalk Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention relates to an absorbent material for water body purification and a biological carbon brick; the absorbent material disclosed by the invention is composed of biological carbon and sodium polyacrylate (PAAS); the concentration of the PAAS solution is 0.1-50g/L; 10-200 g of biological carbon is added into 500-1000 mL of PAAS solution; the biological carbon brick comprises a hollow base; an annular top cover is installed on the top end of the base; the absorbent material is filled in the base; two layers of protective filter films cover the upper surface of the absorbent material; and a diffusion film interlayer is arranged between the two layers of filter films. According to the invention, due to the added diffusion film, PAAS and biological carbon can be effectively prevented from being dissolved; pollutants having high activity and low molecular weight are allowed to freely diffuse to enter the biological carbon brick, and therefore, the absorbent material for water body purification and the biological carbon brick disclosed by the invention have the capability of selectively eliminating hazard pollutants in a water body.
Description
Technical field
The invention belongs to environmental science, relate to the sorbing material for water body purification, especially a kind of for water body purification sorbing material and biological brick fuel.
Background technology
Charcoal typically refers to the biomass resource extensively existing take nature as basis, utilizes specific charring process, by the living beings carbonaceous that imperfect combustion produces under anoxia condition.Common charcoal comprises charcoal, bamboo charcoal, stalk, charcoal rice, shell charcoal etc.They are mainly comprised of aromatic hydrocarbon and simple substance carbon or the carbon with graphite-structure, contain more than 60% carbon, also comprise H, O, N, S and a small amount of trace element.Charcoal has raw material wide material sources, production cost is low, ecological safety is pollution-free, can spread etc. distinguishing feature.
Charcoal solubility is extremely low, there is height carboxylic esterification and aromatization structure, have larger porosity and specific area, these fundamental propertys make it possess absorption affinity resistance to oxidation and the strong characteristic of antibiont capacity of decomposition, can be widely used in removing the organic and inorganic pollution in water.
Charcoal is owing to having larger porosity, specific area, it is had great advantage on Adsorption of Heavy Metals and organic pollution, but because biological carbon is the black puffy solid matter that particle is careful, quality is lighter, charcoal after treatment be difficult for from water body, separates, this drawbacks limit the application of charcoal.
Sodium Polyacrylate is-kind of water-soluble high-molecular compound, water soluble forms thick liquid, to the heavy metal in water body particularly bivalent metal ion have superpower sequestering power, but because Sodium Polyacrylate after the restriction chelating of content of beary metal is still water miscible, cannot be removed, limited the application of Sodium Polyacrylate as water treatment agent.
What in water body, harm was larger is active pollutant, active pollutant is as ionic state heavy metal, agricultural chemicals, low molecule POPs etc. can produce direct harm to biological and ecological environment, eliminating and processing active pollutant in water body is problem in urgent need to solve, and material that at present can Adsorption water body high activity pollutant exists adsorption capacity low, preparation cost compared with high, preparation difficulty is large, the follow-up shortcoming such as difficult, be restricted in the use.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide that a kind of material novelty, cost are low, advantages of good adsorption effect for water body purification sorbing material and biological brick fuel.
The technical scheme that the present invention realizes object is as follows:
A kind of for water body purification sorbing material, the solution that described material is formed by charcoal and Sodium Polyacrylate, the concentration of described PAAS is at 0.1-50g/L, and the content of described charcoal is 20-400g/L.
And described polyacrylic molecular weight is 3,000 ten thousand.
And the preparation method of described sorbing material is: first prepare PAAS solution, PAAS solution is joined in charcoal, mix pressing and get final product.
A kind of biological brick fuel of sorbing material; comprise sorbing material and shell; sorbing material is filled in shell; sorbing material has exposed surface with respect to shell; at the exposed surface of sorbing material, seal three metafiltration films; described three metafiltration films are inside and outside two-layer protection filter membrane, between inside and outside two-layer protection filter membrane, Pollutants Diffusion film interlayer are set.
And; the concrete structure of described biological brick fuel is: comprise a hollow base, ring-type top cover, filling adsorption material in base are installed on base top; the upper surface of sorbing material covers inside and outside two-layer protection filter membrane, and Pollutants Diffusion film interlayer is set between two-layer filter membrane.
And described diffusion barrier allows freely to see through the molecular weight 50-1000000 of material, the aperture of outer layer protection filter membrane is 0.15-0.22 μ m, internal layer protection filter membrane aperture 0.3-0.45 μ m.
And the thickness of described diffusion barrier is 0.8mm, the thickness of inside and outside layer protection filter membrane is 0.1mm.
And, the preparation method of described diffusion barrier is: by acrylamide, crosslinking agent, ammonium persulfate, N, N, the hydrogel that-methylene-bisacrylamide is made, its preparation method is: acrylamide solution, crosslinking agent, high purity water are mixed, add successively ammonium persulfate, N, N,-methylene-bisacrylamide, pours into after mixing in mould, and acquisition aquagel membrane is diffusion barrier.
And the preparation method of described crosslinking agent is: in the allyl glycidyl ether that sodium borohydride is added, obtain solution A; Agarose is added in NaOH solution, constantly stir and form agarose suspension B; Solution A is added in suspension B and forms solution C, by solution C continuous stirring 12h; Mixed liquor is filtered, be washed till neutrality with distilled water; Dehydration, vacuum drying, obtains required crosslinking agent, described sodium borohydride: allyl glycidyl ether: agarose: NaOH weight ratio=0.2-0.4:9-20:5-15:3.6-6.
And described diffusion barrier is by acrylamide, crosslinking agent, ammonium persulfate, N, N, the hydrogel that-methylene-bisacrylamide is made.
Beneficial effect of the present invention and good effect are as follows:
1, in the present invention, selected Sodium Polyacrylate (PAAS) is the macromolecular compound of a kind of wire, solubility, carboxyl on its strand is due to electrostatic repulsion effect, the polymer chain circumnutating is stretched, facilitate the functional group with adsorptivity to be exposed to surface.Its structural formula is-[CH2CHCOONa-]-, its functional group is that carboxyl can complex reaction occur preferably with metal ion.Because PAAS belongs to water-soluble organic high molecular compound, and wrapped up with diffusion barrier, can avoid it from biological brick fuel stripping, solved PAAS and be not suitable for being directly used in the problem of wastewater treatment.
2, the present invention is directed to charcoal and remove not segregative shortcoming after pollutant, prepared a kind solid biologic brick fuel, for the charcoal problem lower to the adsorption capacity of heavy metal, added the heavy metal absorbents such as PAAS, increased the adsorption capacity of charcoal to heavy metal.
3, after the inner filling adsorption material of biological brick fuel provided by the invention, can remove water body high activity pollutant, also have adsorption capacity high, applied widely, without harmful particle stripping, adsorption efficiency advantages of higher.
4, the diffusion barrier adding in the present invention can effectively prevent PAAS or other materials stripping, and separating active substances optionally, makes this invention have the ability that endangers large pollutant in selective removal water body.
5, biological brick fuel provided by the invention has the ability of efficient removal activity, low molecule organic matter, inorganic pollution, solves the dispersiveness of charcoal to such an extent as to irretrievable shortcoming can be directly used in landfill or burning disposal after sorbing material use.
Accompanying drawing explanation
Fig. 1 is the front view of the biological brick fuel of the present invention;
Fig. 2 is the axial cutaway view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the structural representation (axially analysing and observe) of another biological carbon brick.
The specific embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
The present invention's raw material used is commercially available, and wherein, charcoal, is by organic waste, as animal wastes, and animal bone, plant roots and stems, a kind of porous carbon that wood chip and Wheat Straw etc. processes.These organic wastes that form charcoal are called as " biomass ", and a lot of scientists are titled with the good reputation of charcoal " black gold ".Charcoal also can be made, and method is: in the time of temperature 500-800 ℃, by stalk, under Anaerobic Treatment 1-3 hour condition, made.
Below be divided into three parts and discuss in detail the present invention, comprising: one, the composition of sorbing material; Two, the preparation method of sorbing material; The structure of the biological brick fuel that three, sorbing material is made; Four, the preparation method of diffusion barrier in biological brick fuel; Five, the absorption example of biological brick fuel.
One, the composition of sorbing material
For water body purification sorbing material, by charcoal and Sodium Polyacrylate (PAAS), formed, the concentration of PAAS solution is at 0.1-50g/L, describedly by 500-1000mLPAAS solution, adds 10-200g charcoal.The concentration of PAAS solution is advisable at the 60-90% of saturation moisture content with the initial water content that guarantees sorbing material at 0.1-50g/L.
Two, the preparation method of sorbing material
According to processed waste water need to prepare PAAS solution, PAAS solution is joined in charcoal, mix pressing and get final product.
The structure of the biological brick fuel that three, sorbing material is made
Comprise sorbing material and shell; sorbing material is filled in shell; sorbing material has exposed surface with respect to shell; at the exposed surface of sorbing material, seal three metafiltration films; described three metafiltration films are inside and outside two-layer protection filter membrane, between inside and outside two-layer protection filter membrane, Pollutants Diffusion film interlayer are set.
The present embodiment provides a kind of concrete structure; as shown in drawings: comprise a hollow base 2; ring-type top cover 1 is installed on base top; filling adsorption material 6 in base; the upper surface of sorbing material covers internal layer protection filter membrane 5, outer layer protection filter membrane 3; Pollutants Diffusion film interlayer 4 is set between two-layer filter membrane; the superiors' filter membrane is concordant with the upper surface of base; by the pressing of ring-type top cover; assurance filter membrane and sorbing material are fixing base inside, and the exposed filter membrane in ring-type position in the middle of ring-type top cover is the passage of sorbing material absorption harmful substance.
The molecular weight transit dose of described diffusion barrier is that the aperture of 50-1000000, outer layer protection filter membrane is 0.15-0.22 μ m, internal layer protection filter membrane aperture 0.3-0.45 μ m.The thickness of described diffusion barrier is 0.8mm, and the thickness of inside and outside layer protection filter membrane is 0.1mm.
Four, the preparation method of diffusion barrier in biological brick fuel
Described diffusion barrier is by acrylamide, crosslinking agent, ammonium persulfate, N, N, the hydrogel that-methylene-bisacrylamide is made; In 100ml, weight ratio is acrylamide: crosslinking agent: ammonium persulfate: N, N ,-methylene-bisacrylamide=20:0.3:0.0035:0.2.
Its preparation method is: the crosslinking agent of the acrylamide solution of 50mL30-50wt%, 10mL1-3wt%, 40mL high purity water are mixed, add successively 70 μ L5-15wt% ammonium persulfates, 20 μ LN, N ,-methylene-bisacrylamide, after mixing, pour in mould, preparing aquagel membrane is diffusion barrier.
The molecular weight transit dose of the gel mould of preparing is 50-1000000, and thickness is 0.8mm.
The preparation method of crosslinking agent is: in the 10-20mL allyl glycidyl ether that 200-400mg sodium borohydride is added, obtain solution A; 5-15g agarose is added in 300mL0.3-0.5mol/LNaOH solution, constantly stir and form agarose suspension B; Solution A is added in suspension B and forms solution C, by solution C continuous stirring 12h; Mixed liquor is filtered, be washed till neutrality with distilled water; Dehydration, vacuum drying, obtains required crosslinking agent.
Described sodium borohydride: allyl glycidyl ether: agarose: NaOH weight ratio=0.2-0.4:9-20:5-15:3.6-6.
Five, the absorption example of biological brick fuel
(1) the PAAS solution that is mixed with 1g/L, adds 100mLPAAS solution in 1g charcoal, and charcoal is mixed with PAAS solution;
(2) mixed liquor is poured in the effigurate mould of tool, taken out brick fuel;
(3) on brick fuel, cover successively 0.45 μ m filter membrane, diffusion barrier, 0.22 μ m filter membrane, and fix with support, be prepared into biological brick fuel; Diffusion barrier is diffusion barrier prepared by step 4;
(4) biological brick fuel is put into the Pb2+ solution of 500mL200mg/L, after 24h, in solution, Pb2+ concentration does not detect for not dropping to.
Claims (10)
1. for a water body purification sorbing material, it is characterized in that: the solution that described material is formed by charcoal and Sodium Polyacrylate, the concentration of described PAAS is at 0.1-50g/L, and the content of described charcoal is 20-400g/L.
2. according to claim 1 for water body purification sorbing material, it is characterized in that: described polyacrylic molecular weight is 3,000 ten thousand.
3. according to claim 1 for water body purification sorbing material, it is characterized in that: the preparation method of described sorbing material is: first prepare PAAS solution, PAAS solution is joined in charcoal, mix pressing and get final product.
4. one kind comprises the biological brick fuel of the sorbing material described in claim 1 or 2; it is characterized in that: comprise sorbing material and shell; sorbing material is filled in shell; sorbing material has exposed surface with respect to shell; at the exposed surface of sorbing material, seal three metafiltration films; described three metafiltration films are inside and outside two-layer protection filter membrane, between inside and outside two-layer protection filter membrane, Pollutants Diffusion film interlayer are set.
5. biological brick fuel according to claim 4; it is characterized in that: the concrete structure of described biological brick fuel is: comprise a hollow base; on base top, ring-type top cover is coaxially installed; filling adsorption material in base; the upper surface of sorbing material covers inside and outside two-layer protection filter membrane, and Pollutants Diffusion film interlayer is set between two-layer filter membrane.
6. biological brick fuel according to claim 4, is characterized in that: described diffusion barrier allows freely to see through the molecular weight 50-1000000 of material, the aperture of outer layer protection filter membrane is 0.15-0.22 μ m, internal layer protection filter membrane aperture 0.3-0.45 μ m.
7. biological brick fuel according to claim 4, is characterized in that: the thickness of described diffusion barrier is 0.8mm, and the thickness of inside and outside layer protection filter membrane is 0.1mm.
8. biological brick fuel according to claim 4, it is characterized in that: the preparation method of described diffusion barrier is: by acrylamide, crosslinking agent, ammonium persulfate, N, N, the hydrogel that-methylene-bisacrylamide is made, its preparation method is: acrylamide solution, crosslinking agent, high purity water are mixed, add successively ammonium persulfate, N, N,-methylene-bisacrylamide, pours into after mixing in mould, and acquisition aquagel membrane is diffusion barrier.
9. biological brick fuel according to claim 8, is characterized in that: the preparation method of described crosslinking agent is: in the allyl glycidyl ether that sodium borohydride is added, obtain solution A; Agarose is added in NaOH solution, constantly stir and form agarose suspension B; Solution A is added in suspension B and forms solution C, by solution C continuous stirring 12h; Mixed liquor is filtered, be washed till neutrality with distilled water; Dehydration, vacuum drying, obtains required crosslinking agent, described sodium borohydride: allyl glycidyl ether: agarose: NaOH weight ratio=0.2-0.4:9-20:5-15:3.6-6.
10. biological brick fuel according to claim 4, is characterized in that: described diffusion barrier is by acrylamide, crosslinking agent, ammonium persulfate, N, N, the hydrogel that-methylene-bisacrylamide is made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008599.3A CN103752285B (en) | 2014-01-08 | 2014-01-08 | Absorbent material for water body purification and biological carbon brick |
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| CN201410008599.3A CN103752285B (en) | 2014-01-08 | 2014-01-08 | Absorbent material for water body purification and biological carbon brick |
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| CN103752285B CN103752285B (en) | 2015-06-03 |
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| CN112774633A (en) * | 2021-01-15 | 2021-05-11 | 复旦大学 | Method for preparing biochar from wet garbage and application of biochar |
| CN115286454A (en) * | 2022-08-22 | 2022-11-04 | 四川络布新材料科技有限公司 | Special fertilizer for promoting crop yield increase and preparation method thereof |
| CN116375301A (en) * | 2023-06-05 | 2023-07-04 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112774633A (en) * | 2021-01-15 | 2021-05-11 | 复旦大学 | Method for preparing biochar from wet garbage and application of biochar |
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| CN116375301A (en) * | 2023-06-05 | 2023-07-04 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
| CN116375301B (en) * | 2023-06-05 | 2023-08-18 | 山东国宏生物科技有限公司 | Soybean oil wastewater treatment method |
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| CN103752285B (en) | 2015-06-03 |
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