CN106186249A - A kind of micro-nano iron sulfide/porous carbon composite and preparation and seaweed biomass thereof are applied - Google Patents

A kind of micro-nano iron sulfide/porous carbon composite and preparation and seaweed biomass thereof are applied Download PDF

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Publication number
CN106186249A
CN106186249A CN201610498854.6A CN201610498854A CN106186249A CN 106186249 A CN106186249 A CN 106186249A CN 201610498854 A CN201610498854 A CN 201610498854A CN 106186249 A CN106186249 A CN 106186249A
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iron sulfide
micro
porous carbon
seaweed biomass
sargassum
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CN106186249B (en
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吕剑
武君
骆永明
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Yantai Institute of Coastal Zone Research of CAS
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/12—Sulfides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
    • C09K17/04—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only applied in a physical form other than a solution or a grout, e.g. as granules or gases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Materials Engineering (AREA)
  • Artificial Fish Reefs (AREA)
  • Cultivation Of Seaweed (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Fertilizers (AREA)

Abstract

A kind of method that the present invention relates to environmental technology field, a kind of micro-nano iron sulfide/porous carbon composite and preparation thereof and seaweed biomass are applied.Biological sulphate reduction generates iron sulfide and covers on seaweed biomass surface to utilize seaweed biomass to promote, is then passed through gentle hydro-thermal reaction, makes seaweed biomass carbonization generate the porous carbon material being loaded with micro-nano biological iron sulfide.The present invention effectively overcomes the multiple technologies difficult problem that seaweed biomass higher value application is faced, initial investment capital cost is cheap, can gather in the crops the salvaging time according to the results place of Sargassum and concentration, the most emergent erection reactor, prepares micro-nano iron sulfide/porous carbon composite.Prepared micro-nano iron sulfide/Sargassum base charcoal composite can be applied in water pollution control, soil (deposit) improvement or pollution law.

Description

A kind of micro-nano iron sulfide/porous carbon composite and preparation thereof and seaweed biomass Application
Technical field
A kind of method that the present invention relates to environmental technology field, a kind of micro-nano iron sulfide/porous Carbon composite and preparation and seaweed biomass thereof are applied.
Background technology
China's seaweed biomass resource is the abundantest, and Sargassum yield ranks first in the world, but the domestic utilization to Sargassum Seldom.As a example by Thallus Laminariae (Thallus Eckloniae), the annual production of Thallus Laminariae (Thallus Eckloniae) accounts for world wide production 95%.Seaweed biomass has excellent compared to terrestrial life matter Gesture.Seaweed growth, in the sea, is not take up land resource, fast growth, growth course capture great amount of carbon dioxide, and absorption and goes Except a large amount of nitrogen phosphorus.Green tide is that the algal tufa phenomenon formed is assembled in ocean large-scale algae burst growth.Green tide algae drifts to nearshore waters Or be deposited on sandy beach, if process will quickly rot not in time, about green tide algal biomass resource be also one be stranded Disturb a difficult problem for coastal region.Therefore, if being made full use of by China coastal seas seaweed biomass, there is important reality meaning Justice.
The main Land use systems of seaweed biomass includes developing biomass energy, refining alginate jelly, production feedstuff, system at present Standby alga fertilizer etc..The exploitation of seaweed biomass are limited to the Primary Production process segment more, and the utilization rate of seaweed biomass is the highest. In terms of dry, current Thallus Laminariae (Thallus Eckloniae) industrial utilization rate only up to about 30%.Residue after having extracted the materials such as alginate jelly is by conduct Garbage is directly discharged in nature, not only causes the waste of biomass resource, and a series of environmental pollution also resulted in is asked Topic.If this kind of Sargassum garbage is used, have important practical significance.The marine algae of current China is available Scope is wide, resource is many, but lacks systematic Study and high-end technology.Accordingly, it would be desirable to develop the seaweed bio of novel high added value Matter utilizes technology.This patent invented on substantial amounts of experiment basis a kind of application seaweed biomass prepare micro-nano iron sulfide/ The method of porous carbon composite.
Through finding the retrieval of prior art literature, Luo Lihui etc. is published in " China Environmental Science ", and 2012,32 (2): In the article of 249-253, promote that sulfatereducting bacteria reduced sulphur acid group has synthesized nanometer sulfuration iron material by organic acid.Zeng Ganning Deng at " ACTA Scientiae Circumstantiae ", " the hydro-thermal preparation of Sargassum phyllocystum Tseng et Lu,Sargassum horneri (Turn.) C. Ag. (Fucus horneri (Turn.)C.Ag.,Spongocarpus horneri Kutz.) base charcoal and the performance table delivered on 2014,34 (2): 392-397 Levy " in a literary composition, mention and utilize Sargassum phyllocystum Tseng et Lu,Sargassum horneri (Turn.) C. Ag. (Fucus horneri (Turn.)C.Ag.,Spongocarpus horneri Kutz.) biomass to be prepared for porous carbon by hydro-thermal reaction.Up to the present, not yet there is application sea Algal biomass promotes sulphuric acid bacteria growing synthesising biological micro-nano sulfur iron material, the most again by hydro-thermal reaction carbonisation preparation sea The report of algae porous carbon based micro-nano iron sulfide composite.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of micro-nano iron sulfide/porous carbon composite wood Material and preparation and seaweed biomass thereof are applied.
For achieving the above object, the present invention uses the technical scheme to be:
A kind of micro-nano iron sulfide/porous carbon composite, biological sulphate reduction generates to utilize seaweed biomass to promote Iron sulfide also covers on seaweed biomass surface, is then passed through gentle hydro-thermal reaction, makes seaweed biomass carbonization generate and is loaded with The porous carbon material of micro-nano biological iron sulfide.
Described seaweed biomass is that immediate offshore area directly salvages Sargassum, the Sargassum collecting disembarkation accumulation dry in the sun or Sargassum processing Garbage.
The preparation method of a kind of micro-nano iron sulfide/porous carbon composite, sulfate is raw to utilize seaweed biomass to promote Thing reduction generates iron sulfide and covers on seaweed biomass surface, is then passed through gentle hydro-thermal reaction, makes seaweed biomass carbonization Generate the porous carbon material being loaded with micro-nano biological iron sulfide.
Particularly as follows:
1) by size-reduced for Sargassum acquisition Sargassum slurry, stand-by；
2) material containing sulfatereducting bacteria and ferrous sulfate are respectively joined above-mentioned according to the ratio of 1-5% (mass ratio) Homogenate mixing in Sargassum slurry, in being homogenized at 15-35 DEG C, biological sulphate reduction reaction 72-240h, makes seaweed biomass Grain surface is covered with iron sulfide, generates iron sulfide/seaweed biomass mixture；
3) by step 2) the middle micro-nano iron sulfide/seaweed biomass mixture input hydrothermal reaction kettle that obtains, 170-220 DEG C Hydro-thermal reaction 2-24h, collects and remains in the black solid bottom reactor, is micro-nano iron sulfide/Sargassum base charcoal multiple Condensation material, scanned Electronic Speculum proof load iron-sulphide particles in porous charcoal is micro/nano level granule.
Described Sargassum is that the Sargassum of directly salvaging, direct salvaging collection disembarkation accumulation or direct salvaging collection dry in the sun is scrubbed Rear pulverizing, stand-by.
Described material is to ferment by the substrate containing sulfatereducting bacteria；Substrate is mud, cattle manure, biogas residue or other is rich in sulfur The substrate of hydrochlorate reducing bacteria (institute's Containing Sulfate Reducing Bacteria quantity > 1 × 107MPN/g)。
Collect after described hydro-thermal reaction and remain in the black solid bottom reactor, carry out follow-up dry disposal, be micro- Nanometer iron sulfide/Sargassum base charcoal composite.
The application of a kind of micro-nano iron sulfide/porous carbon composite, described above-mentioned prepares micro-nano iron sulfide/sea Algae base charcoal composite can water pollution control, Soil sediment improvement or pollution law in application.
The application of a kind of seaweed biomass, seaweed biomass is in preparing micro-nano iron sulfide/porous carbon composite Application.
Sargassum refer to the various algae of growth and breeding such as Entermorpha, ulva in sea water, Thallus Laminariae (Thallus Eckloniae), sargassum thunbergii, Gracilaria tenuistipitata, Thallus Gracilariae and Red tide algae etc..
Advantage for present invention:
1) effectively overcoming the multiple technologies difficult problem that seaweed biomass higher value application is faced, initial investment capital cost is low Honest and clean, quickly emergent can set up reactor according to the results place of Sargassum with concentrate the results salvaging time, prepare micro-nano sulfuration Ferrum/porous carbon composite；
2) the micro-nano iron sulfide of gained/Sargassum base porous carbon composite material stable in properties, belongs to multiduty environmental friendliness Property material.
3) this technology of preparing has played hydro-thermal reaction and can process the advantage of the fresh sample of biomass, can directly apply the fresh sample of Sargassum Or the biomass of high-moisture percentage are as reaction mass, before eliminating conventional seaweed biomass reaction treatment, need drying and dewatering in advance Step, hydro-thermal reaction system temperature is less than 220 DEG C simultaneously, belongs to low-temperature hydrothermal reaction, thus decreases energy consumption, ensure simultaneously Application hydro-thermal reaction prepares operability and the safety of micro-nano iron sulfide/Sargassum base porous charcoal.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph (in figure, white particle is iron sulfide) that the embodiment of the present invention obtains material.
Detailed description of the invention
Below by embodiment, the present invention is further described, but the invention is not limited in following example.
Embodiment 1
Green tide burst period, salvages green tide algae Entermorpha in Qingdao Area or collects the Entermorpha of accumulation disembarkation, being crushed to biology Plasmid footpath<1mm make Sargassum slurry, by mud (sulfatereducting bacteria quantity>1 × 107And ferrous sulfate is respectively according to 1% (matter MPN/g) Amount than) ratio join above-mentioned Sargassum slurry in, homogenate mixing, at a temperature of 35 DEG C start homogenate in biological sulphate reduction anti- Should, after reaction 72h, generation iron sulfide/seaweed biomass mixture being directly placed into hydrothermal reaction kettle, 170 DEG C of quick hydro-thermals are anti- Answer 24h, hydro-thermal reaction to terminate, collect and remain in the black solid bottom reactor, vacuum drying, by scanning electron microscope analysis, Conclude that the iron-sulphide particles being supported in porous charcoal is micro/nano level granule, thus it is biological to prepare micro-nano iron sulfide/Sargassum base Carbon composite.The particle diameter of prepared porous carbon composite material is mainly distributed between 40-80 μm.Prepared composite is pressed Ratio according to 0.5% (mass ratio) adds in waste water, and the clearance of heavy metal is more than 99%.
Embodiment 2
Gathering Gracilaria tenuistipitata and the Thallus Gracilariae of dry in the sun, Sargassum is rinsed desalination, then < 1mm is even to particle diameter for crushed biomass Slurry, by cattle manure (sulfatereducting bacteria quantity > 1 × 107MPN/g) respectively join according to the ratio of 2% (mass ratio) with ferrous sulfate In Sargassum slurry, homogenate mixing, start biological sulphate reduction reaction at a temperature of 25 DEG C, after reaction 120h, generate micro-nano sulfuration Ferrum/seaweed biomass mixture.Generate iron sulfide/seaweed biomass mixture and be directly placed into hydrothermal reaction kettle, 190 DEG C of rapid waters Thermal response 10h, collects and remains in the black solid bottom reactor, and lyophilization is many to being supported on by scanning electron microscopic observation Iron-sulphide particles on the charcoal of hole is micro/nano level granule, prepares micro-nano iron sulfide/Sargassum base charcoal composite.Prepared The particle diameter of porous carbon composite material in mean diameter in 70 μm.Prepared composite is added according to the ratio of 2% (mass ratio) Entering in soil, in soil, the clearance of tetrabromobisphenol A is more than 90%.
Embodiment 3
Gathering kelp processing waste in certain kelp processing factory, rinse kelp processing waste, desalination, then by sea Band processing waste be crushed to particle diameter<1mm be homogenized, by biogas residue (sulfatereducting bacteria quantity>1 × 107And ferrous sulfate is each MPN/g) Join in Sargassum slurry according to the ratio of 5% (mass ratio), homogenate mixing, start biological sulphate reduction at a temperature of 15 DEG C anti- Should, generate iron sulfide/seaweed biomass mixture after reaction 240h.This mixture is directly placed into hydrothermal reaction kettle, and 220 DEG C fast Speed hydro-thermal reaction 2h, hydro-thermal reaction terminates, and collects and remains in the black solid bottom reactor, vacuum drying, by scanning electricity Sem observation is micro/nano level granule to the iron-sulphide particles being supported in porous charcoal, i.e. prepares micro-nano iron sulfide/Sargassum base raw Thing carbon composite.The particle diameter of prepared porous carbon composite material in mean diameter in 50 μm.By prepared composite according to The ratio of 1% (mass ratio) joins in subsoil water, and in subsoil water, the clearance of trichloro ethylene is more than 90%.

Claims (9)

1. micro-nano iron sulfide/porous carbon composite, it is characterised in that: sulfate is biological to utilize seaweed biomass to promote Reduction generates iron sulfide and covers on seaweed biomass surface, is then passed through gentle hydro-thermal reaction, makes seaweed biomass carbonization raw Become the porous carbon material being loaded with micro-nano biological iron sulfide.
2. the micro-nano iron sulfide/porous carbon composite as described in claim 1, it is characterised in that: described seaweed biomass Sargassum, the Sargassum collecting disembarkation accumulation dry in the sun or seaweed processing waste is directly salvaged for immediate offshore area.
3. the preparation method of the micro-nano iron sulfide/porous carbon composite described in a claim 1, it is characterised in that: profit Promote that biological sulphate reduction generates iron sulfide and covers on seaweed biomass surface with seaweed biomass, be then passed through gentle water Thermal response, makes seaweed biomass carbonization generate the porous carbon material being loaded with micro-nano biological iron sulfide.
4. the preparation method of the micro-nano iron sulfide/porous carbon composite described in claim 3, it is characterised in that:
1) by size-reduced for Sargassum acquisition Sargassum slurry, stand-by；
2) material containing sulfatereducting bacteria and ferrous sulfate are respectively joined above-mentioned Sargassum according to the ratio of 1-5% (mass ratio) Homogenate mixing in slurry, in being homogenized at 15-35 DEG C, biological sulphate reduction reaction 72-240h, makes seaweed biomass granule table Face is covered with iron sulfide, generates iron sulfide/seaweed biomass mixture；
3) by step 2) the micro-nano iron sulfide of middle acquisition/seaweed biomass mixture input hydrothermal reaction kettle, 170-220 DEG C of hydro-thermal Reaction 2-24h, collects and remains in the black solid bottom reactor, be micro-nano iron sulfide/Sargassum base charcoal composite wood Material, scanned Electronic Speculum proof load iron-sulphide particles in porous charcoal is micro/nano level granule.
5. the preparation method of the micro-nano iron sulfide/porous carbon composite described in claim 3 or 4, it is characterised in that: described Sargassum be directly salvage, directly salvage collect disembarkation pile up or directly salvage collect the Sargassum of dry in the sun scrubbed after pulverize, stand-by.
6. the preparation method of the micro-nano iron sulfide/porous carbon composite described in claim 3 or 4, it is characterised in that: described Material is to ferment by the substrate containing sulfatereducting bacteria；Substrate is mud, cattle manure, biogas residue or other is rich in sulfate reducting bacteria Substrate.
7. the preparation method of the micro-nano iron sulfide/porous carbon composite described in claim 3 or 4, it is characterised in that: described Collect after hydro-thermal reaction and remain in the black solid bottom reactor, carry out follow-up dry disposal, be micro-nano iron sulfide/sea Algae base charcoal composite.
8. the application of the micro-nano iron sulfide/porous carbon composite described in a claim 1, it is characterised in that: on described State prepare micro-nano iron sulfide/Sargassum base charcoal composite can water pollution control, soil (deposit) improvement or Pollution law is applied.
9. the application of a seaweed biomass, it is characterised in that: seaweed biomass prepare micro-nano iron sulfide/porous carbon be combined Application in material.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505218A (en) * 2016-11-14 2017-03-15 绥化学院 A kind of waste mushroom leftover prepares mesoporous carbon and FeS2The method of combination electrode material
CN107930584A (en) * 2017-11-24 2018-04-20 中国科学院烟台海岸带研究所 A kind of sulfur doping algae iron composite material and its preparation method and application
CN110314651A (en) * 2019-08-06 2019-10-11 中国科学院烟台海岸带研究所 A kind of compound porous environment-friendly materials of magnetism sulphur iron charcoal and its environment-friendly preparation method thereof and application
CN112174109A (en) * 2020-10-21 2021-01-05 海南热带海洋学院 Seaweed biochar as well as preparation method and application thereof
CN112429827A (en) * 2020-10-28 2021-03-02 大连理工大学 Green preparation method and application of offshore pollution sediment repair material

Citations (3)

* Cited by examiner, † Cited by third party
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CN101402491A (en) * 2008-10-27 2009-04-08 合肥工业大学 Method for treating heavy metal-containing acidic waste water and recycling heavy metal with biomass fixed bed
WO2013187955A1 (en) * 2012-06-15 2013-12-19 Regents Of The University Of Minnesota Hydrothermal carbonization of sewage wastes
CN103721677A (en) * 2014-01-13 2014-04-16 农业部沼气科学研究所 Preparation method of biomass carbon composite material for removing phosphorus in wastewater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101402491A (en) * 2008-10-27 2009-04-08 合肥工业大学 Method for treating heavy metal-containing acidic waste water and recycling heavy metal with biomass fixed bed
WO2013187955A1 (en) * 2012-06-15 2013-12-19 Regents Of The University Of Minnesota Hydrothermal carbonization of sewage wastes
CN103721677A (en) * 2014-01-13 2014-04-16 农业部沼气科学研究所 Preparation method of biomass carbon composite material for removing phosphorus in wastewater

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505218A (en) * 2016-11-14 2017-03-15 绥化学院 A kind of waste mushroom leftover prepares mesoporous carbon and FeS2The method of combination electrode material
CN106505218B (en) * 2016-11-14 2019-01-15 绥化学院 A method of with waste mushroom leftover preparation mesoporous carbon and FeS2 combination electrode material
CN107930584A (en) * 2017-11-24 2018-04-20 中国科学院烟台海岸带研究所 A kind of sulfur doping algae iron composite material and its preparation method and application
CN107930584B (en) * 2017-11-24 2020-06-26 中国科学院烟台海岸带研究所 Sulfur-doped algae-iron composite material and preparation method and application thereof
CN110314651A (en) * 2019-08-06 2019-10-11 中国科学院烟台海岸带研究所 A kind of compound porous environment-friendly materials of magnetism sulphur iron charcoal and its environment-friendly preparation method thereof and application
CN110314651B (en) * 2019-08-06 2022-02-01 中国科学院烟台海岸带研究所 Magnetic sulfur-iron-carbon composite porous environment-friendly material and green preparation method and application thereof
CN112174109A (en) * 2020-10-21 2021-01-05 海南热带海洋学院 Seaweed biochar as well as preparation method and application thereof
CN112429827A (en) * 2020-10-28 2021-03-02 大连理工大学 Green preparation method and application of offshore pollution sediment repair material
CN112429827B (en) * 2020-10-28 2022-05-27 大连理工大学 Green preparation method and application of offshore pollution sediment repair material

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