CN107262030A - A kind of preparation method of modified banana stalk biomass carbon - Google Patents

A kind of preparation method of modified banana stalk biomass carbon Download PDF

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Publication number
CN107262030A
CN107262030A CN201710506285.XA CN201710506285A CN107262030A CN 107262030 A CN107262030 A CN 107262030A CN 201710506285 A CN201710506285 A CN 201710506285A CN 107262030 A CN107262030 A CN 107262030A
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CN
China
Prior art keywords
banana
modified
biomass carbon
banana stem
stalk
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Pending
Application number
CN201710506285.XA
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Chinese (zh)
Inventor
蒋艳红
朱义年
朱宗强
吴雨晴
叶成慧
林慕雨丹
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Guilin University of Technology
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Guilin University of Technology
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Priority to CN201710506285.XA priority Critical patent/CN107262030A/en
Publication of CN107262030A publication Critical patent/CN107262030A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0274Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
    • B01J20/0288Halides of compounds other than those provided for in B01J20/046
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4825Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton

Abstract

The present invention discloses a kind of preparation method of modified banana stalk biomass carbon.Banana stem is squeezed and removed after internal moisture, is dried at 60 DEG C ~ 80 DEG C, is crushed, 60 mesh sieves are crossed.It is 1 by the solid-to-liquid ratio of treat banana stalk powder and magnesium chloride solution:10 ~ 15g/ml adds the MgCl prepared2Solution, vibrates 1 hour, impregnates 23 hours, filtering.Filter residue is dried in an oven.Then product is placed in into oxygen deprivation in the Muffle furnace that temperature is 400 DEG C ~ 450 DEG C to be carbonized 3.5 hours, and is furnace-cooled to room temperature, the product of acquisition is ground, and crosses 100 mesh sieves, that is, modified banana stem biomass carbon is made.Present invention process is simple and easy to apply, and production cost is low, to NH4‑N、PO4 3‑Maximal absorptive capacity respectively reach 30.4mg/g, 38.5mg/g, poultry waste water, phosphorous and ammonia nitrogen waste water advanced treating can be widely used in.

Description

A kind of preparation method of modified banana stalk biomass carbon
Technical field
Utilized the invention belongs to changing waste into resources and water pollution processing technology field, and in particular to a kind of modified banana stalk The preparation method of biomass carbon.
Background technology
At present, whole world phosphor resource critical shortage, while scale agricultural and industrial production cause substantial amounts of nitrogen, phosphorus again It is discharged into Deng element in surface water body, causes the eutrophication of water environment.By the recovery that phosphorus is carried out from sewage and animal wastes It can not only play a part of purifying water, the recovery of nitrogen and the utilization of phosphorus realized again, China is solved with adsorbed water body nitrogen phosphorus The problems such as composite slow release fertilizer lacks, its environmental benefit and social benefit are very notable.Wherein reclaimed by adsorbent in waste water Nitrogen and phosphorus element, do not produce the advantages of secondary pollution, renewable recovery and attention because it has.At present, it is the most frequently used The active carbon of adsorbent and modified cellulose etc., but most adsorbent limits it because of cost height or complex manufacturing answers With.
Some researchers are to reduce cost to employ the absorption that agricultural wastes prepare biomass carbon progress nitrogen phosphorus.Such as adopt The biomass carbon processing prepared with different materials such as bagasse, peanut shell, bamboo, maize pulp, soybean stalk, oak, reeds is first Beginning concentration is 5.0mg/l KH2PO4Solution, it is found that peanut shell is best to the adsorption effect of phosphorus, but unit adsorbance also only has 3.8mg/g。
Banana belongs to tropical fruit (tree), originating from the Asia southeast, is international large fruit, with growth cycle it is short and production The features such as measuring high, also produces the agricultural wastes such as the banana stalk of almost equivalent while a large amount of banana products are harvested every year.According to Data is shown within 2012, and only the province of Guangxi one produces 6140000 tons of banana stalk per year.Due to banana plant because the colloid containing adhesion With influence animal appetite, reduce nutrient efficiency tanning matter, so, banana stalk is seldom recycled by banana peasant.It is fragrant at present The main recycling mode of any of several broadleaf plants stalk is exactly direct compost.But space-consuming is big during banana straw compost, reduction is ploughed Make the utilization rate of area, a series of problems can be carried out to agrarian zone.Therefore most banana stalk is taken as agricultural wastes four Stack at place.Banana stem leaves rot that environmental pollution can be caused in stacking process, and banana stalk can be produced again as garbage loading embeading processing Raw a large amount of greenhouse gases, are unfavorable for the sustainable development of ecological environment.Therefore, how banana stem leaves are recycled into For the scientific issues discussed warmly.To expand the value of banana stem leaves, banana stem leaves are used to manufacture by some researchers Animal feed, mushroom culture medium, the extraction various aspects such as lignin and cellulose papermaking.
In order to make full use of the banana stalk resource that Guangxi is abundant, its added value is improved, according to the characteristic of banana stem, sheet Invention is using banana stem as primary raw material, using magnesium chloride as modifying agent, and banana stem is prepared by certain physics and chemical method Stalk biomass carbon, and for the nitrogen and phosphorus element in adsorbed water body.
The content of the invention
It is an object of the invention to provide a kind of preparation method of modified banana stalk biomass carbon.
Thinking of the present invention:Using banana stem as main material, by technology controlling and process, modifying agent is made with magnesium chloride, chlorine is made Change magnesium-modified banana stem biomass carbon, so as to improve nitrogen phosphorus adsorption efficiency.
Concretely comprise the following steps:
(1) by the banana stem in the middle of banana string by juice extractor, squeeze the internal moisture except banana stem, then will obtain Banana stalk slag is placed in baking oven, is dried at 60 ~ 80 DEG C, and finally with 60 mesh sieves are crossed after omnipotent crusher in crushing, banana is made Stalk powder.
(2) banana stem powder made from step (1) is placed in conical flask, consolidated by banana stem powder and magnesium chloride brine Liquor ratio is 1:10 ~ 15g/mL adds the magnesium chloride brine that concentration is 1.0 ~ 1.2mol/L, is carried out after conical flask is sealed Vibration, frequency of oscillation is 150r/min, and temperature is 30 DEG C, and duration of oscillation is 1 hour, dipping is then sealed again 23 hours, filtering, Gained filter residue is dried in 105 DEG C of baking oven, and the magnesium-modified banana stem powder of chlorination is made.
(3) the magnesium-modified banana stem powder of chlorination made from step (2) is fitted into crucible, crucible is wrapped up tight with masking foil It is real, it is placed in Muffle furnace, is first warming up to 400 DEG C with 20 DEG C/min, then oxygen deprivation is carbonized 3.5 hours in 400 DEG C ~ 450 DEG C of temperature, And it is furnace-cooled to room temperature.
(4) product for obtaining step (3) is ground, and crosses 100 mesh sieves, that is, modified banana stalk biomass carbon is made.
The inventive method is simple for process, using banana stalk as raw material, and raw material sources extensively, are easy to promote, and system Obtaining high nitrogen phosphorus absorption property biomass carbon has the advantages that environmental protection, treatment effeciency are high, economical and practical, can be applied to cultivation Waste water, phosphorous and nitrogenous effluent advanced treating, a kind of new method, new way are provided for the utilization of agricultural wastes banana stem, Carbon in banana stem is converted into biomass carbon, the greenhouse gases that banana stem natural degradation is brought are effectively reduced Discharge.High nitrogen phosphorus absorption property biomass carbon prepared by the inventive method, its surface can load the oxide of magnesium, can with water NH4- N and PO4- p-shaped is into NH4MgPO4·xH2O is precipitated, and product is to NH in water body4- N and PO4- P theoretical maximum unit adsorbance Reached the biomass carbon after 30mg/g and 38.5mg/g, adsorption of nitrogen phosphorus saturation can as soil conditioner improved soil structure and Performance, increases soil fertility.
Brief description of the drawings
Fig. 1 is the obtained infrared spectrum being modified before and after banana stalk biomass carbon adsorption of nitrogen, phosphorus in the embodiment of the present invention Figure.
Fig. 2 is the x ray diffration pattern x of obtained modified banana stem biomass carbon in the embodiment of the present invention.
Fig. 3 is the SEM microscopy figure of obtained modified banana stem biomass carbon in the embodiment of the present invention (1500 times).
Fig. 4 is the SEM microscopy figure of obtained modified banana stem biomass carbon in the embodiment of the present invention (3000 times).
Fig. 5 is obtained modified banana stem biomass carbon in the embodiment of the present invention to the aqueous solution under different initial concentration values The Adsorption Effect variation diagram of middle ammonia nitrogen.
Fig. 6 is obtained modified banana stem biomass carbon in the embodiment of the present invention to the aqueous solution under different initial concentration values The Adsorption Effect variation diagram of middle phosphate radical.
Embodiment
Embodiment:
(1) banana stem in the middle of banana string is cut into small pieces, by roller juice extractor, squeezes the internal water except banana stem Point, then obtained banana stalk slag is placed in baking oven, dried at 70 DEG C, finally with 60 mesh excessively after omnipotent crusher in crushing Sieve, is made banana stem powder.
(2) banana stem powder made from step (1) is placed in conical flask, consolidated by banana stem powder and magnesium chloride brine Liquor ratio is 1:12.5g/mL adds the magnesium chloride brine that concentration is 1.1mol/L, is vibrated after conical flask is sealed, Frequency of oscillation is 150r/min, and temperature is 30 DEG C, and duration of oscillation is 1 hour, dipping is then sealed again 23 hours, filtering, gained Filter residue is dried in 105 DEG C of baking oven, and the magnesium-modified banana stem powder of chlorination is made.
(3) the magnesium-modified banana stem powder of chlorination made from step (2) is fitted into crucible, crucible is wrapped up tight with masking foil It is real, it is placed in Muffle furnace, is first warming up to 400 DEG C with 20 DEG C/min, then oxygen deprivation is carbonized 3.5 hours in 425 DEG C of temperature, and stove is cold To room temperature.
(4) product for obtaining step (3) is ground, and crosses 100 mesh sieves, that is, modified banana stalk biomass carbon is made.
By the thing phase of modified banana stem biomass carbon made from the present embodiment and structure, composition composition and shape characteristic Analyzed using X-ray diffraction(XRD, BR-Z20), FTIS(FT-IR, WQF-180)With Flied emission ring Border SEM(SEM, Vario Micro Cube)Observation test is carried out, Figure of description 1,2,3 and 4 is specifically shown in.
The application example specific steps of modified banana stem biomass carbon made from the present embodiment:
2nd, the magnesium-modified banana stem biomass carbon of chlorination is to nitrogen, the adsorption effect of phosphorus
(1) the use of analyze pure ammonium chloride and potassium dihydrogen phosphate the preparation concentration containing N and P is respectively 150mg/L and 80mg/L, 200mg/ L and 30mg/L, 300mg/L and 50mg/L, 500mgl/L and 150mg/L, 800mgl/L and 200mg/L, 1000mgl/L and 250mg/L 6 groups of pending liquid.
(2) pending liquid made from pipetting 50ml steps (1) respectively is bottled in numbering conical flask, is separately added into this implementation The obtained modified banana stem biomass carbon 0.5g of example, is vibrated, frequency of oscillation is 150r/min, temperature is after sealing 30 DEG C, duration of oscillation is 4 hours.
(3) product of step (2) is taken with filtrate is taken after 10cm qualitative filter paper filtering, using Berthelot spectrophotometry (HJ535-2009)Determine ammonia nitrogen in solution concentration, ammonium molybdate spectrophotometric method(11893-89)Total phosphorus concentration in solution is determined, Modified banana stem biomass carbon is obtained to the adsorption effect of ammonia nitrogen, phosphorus in the pending liquid of various concentrations, specification is specifically shown in attached Fig. 5 and Fig. 6.

Claims (1)

1. a kind of preparation method of modified banana stalk biomass carbon, it is characterised in that concretely comprise the following steps:
(1) by the banana stem in the middle of banana string by juice extractor, squeeze the internal moisture except banana stem, then will obtain Banana stalk slag is placed in baking oven, is dried at 60 ~ 80 DEG C, and finally with 60 mesh sieves are crossed after omnipotent crusher in crushing, banana is made Stalk powder;
(2) banana stem powder made from step (1) is placed in conical flask, by banana stem powder and magnesium chloride brine solid-to-liquid ratio For 1:10 ~ 15g/mL adds the magnesium chloride brine that concentration is 1.0 ~ 1.2mol/L, is vibrated after conical flask is sealed, Frequency of oscillation is 150r/min, and temperature is 30 DEG C, and duration of oscillation is 1 hour, dipping is then sealed again 23 hours, filtering, gained Filter residue is dried in 105 DEG C of baking oven, and the magnesium-modified banana stem powder of chlorination is made;
(3) the magnesium-modified banana stem powder of chlorination made from step (2) is fitted into crucible, crucible is wrapped up tight with masking foil, It is placed in Muffle furnace, is first warming up to 400 DEG C with 20 DEG C/min, then oxygen deprivation is carbonized 3.5 hours in 400 DEG C ~ 450 DEG C of temperature, and It is furnace-cooled to room temperature;
(4) product for obtaining step (3) is ground, and crosses 100 mesh sieves, that is, modified banana stalk biomass carbon is made.
CN201710506285.XA 2017-06-28 2017-06-28 A kind of preparation method of modified banana stalk biomass carbon Pending CN107262030A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108821286A (en) * 2018-08-02 2018-11-16 广东石油化工学院 banana stem active carbon and preparation method thereof
CN109158080A (en) * 2018-09-15 2019-01-08 天津大学 A kind of magnesium for recycling nitrogen P elements in urine changes the preparation method of charcoal
CN110756166A (en) * 2019-12-03 2020-02-07 四川农业大学 Corncob-loaded magnesium-modified adsorption material and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102895952A (en) * 2012-09-27 2013-01-30 浙江工业大学 Porous carbon material capable of selectively absorbing gold ions, preparation method and application of porous carbon material
CN103213982A (en) * 2013-04-28 2013-07-24 广西大学 Method for preparing activated carbon by carrying out microwave irradiation on banana straws
CN103990433A (en) * 2014-04-25 2014-08-20 重庆文理学院 Macadamia nut shell/sorghum straw bio-char and preparation method thereof
MX2016001039A (en) * 2013-07-22 2016-09-09 Geophia Llc Process for converting banana tree stalk into fibers for absorption of hydrocarbons and corresponding system and product.
CN106000334A (en) * 2016-05-12 2016-10-12 浙江大学 Modified reed biomass charcoal and preparing method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102895952A (en) * 2012-09-27 2013-01-30 浙江工业大学 Porous carbon material capable of selectively absorbing gold ions, preparation method and application of porous carbon material
CN103213982A (en) * 2013-04-28 2013-07-24 广西大学 Method for preparing activated carbon by carrying out microwave irradiation on banana straws
MX2016001039A (en) * 2013-07-22 2016-09-09 Geophia Llc Process for converting banana tree stalk into fibers for absorption of hydrocarbons and corresponding system and product.
CN103990433A (en) * 2014-04-25 2014-08-20 重庆文理学院 Macadamia nut shell/sorghum straw bio-char and preparation method thereof
CN106000334A (en) * 2016-05-12 2016-10-12 浙江大学 Modified reed biomass charcoal and preparing method and application thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108821286A (en) * 2018-08-02 2018-11-16 广东石油化工学院 banana stem active carbon and preparation method thereof
CN108821286B (en) * 2018-08-02 2022-02-15 广东石油化工学院 Banana stem activated carbon and preparation method thereof
CN109158080A (en) * 2018-09-15 2019-01-08 天津大学 A kind of magnesium for recycling nitrogen P elements in urine changes the preparation method of charcoal
CN110756166A (en) * 2019-12-03 2020-02-07 四川农业大学 Corncob-loaded magnesium-modified adsorption material and preparation method and application thereof

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Application publication date: 20171020