CN105771900A - Iron-loaded modified active carbon and preparation method thereof - Google Patents

Iron-loaded modified active carbon and preparation method thereof Download PDF

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Publication number
CN105771900A
CN105771900A CN201610309311.5A CN201610309311A CN105771900A CN 105771900 A CN105771900 A CN 105771900A CN 201610309311 A CN201610309311 A CN 201610309311A CN 105771900 A CN105771900 A CN 105771900A
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CN
China
Prior art keywords
iron
active carbon
activated carbon
preparation
load
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Pending
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CN201610309311.5A
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Chinese (zh)
Inventor
陆伟玮
刘廷凤
王尔
秦玲
陶炳池
陈菲
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Priority to CN201610309311.5A priority Critical patent/CN105771900A/en
Publication of CN105771900A publication Critical patent/CN105771900A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid 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
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered

Abstract

The invention belongs to the field of modification of active carbon and mainly relates to an iron-loaded modified active carbon and a preparation method thereof. The preparation method of the modified active carbon comprises the following steps: mixing powder active carbon with iron salt, dissolving a mixture in distilled water at normal temperature, and dipping via ultrasonic wave; and regulating the pH to be 7-8 via an alkaline solution, standing for 24 hours, filtering via a vacuum pump and drying to obtain the modified active carbon. Through the iron-loaded modified active carbon and the preparation method thereof, the active carbon is prepared from livestock and poultry breeding waste cow dung; a modification method of active carbon is provided on the basis of comprehensive utilization of the agricultural waste; the defect of high time consumption of the conventional direct dipping method is abandoned; due to the adoption of an ultrasonic wave load method, the removal efficiency of phosphorus by the active carbon is improved; significant social and economical benefits can be achieved.

Description

A kind of load iron modified activated carbon and preparation method thereof
Technical field
The invention belongs to the modified field of activated carbon, particularly relate to a kind of load iron modified activated carbon and preparation method thereof.
Background technology
Along with industry fast development, the mankind are in industrial and agricultural development and daily life, and in water body, the pollutant of discharge are increasing, accelerate the eutrophication process of rivers and lakes.Eutrophication problem is one of severe water pollution problems of facing of the world today.The nutrient substance that nitrogen, the phosphorus etc. that body eutrophication is primarily due to contain in water body are available for algae utilization is too much, and wherein phosphorus is the restriction factor of eutrophication water, and removing of phosphorus is significant for the reparation of nutritive water.Aquaculture is the important industry of China's rural development.In recent years, along with the development of scale animal and poultry cultivation industry, animal waste yield is also continuously increased therewith.Feces of livestock and poultry being comprehensively utilized, so as to innoxious, resource, could effectively solving its pollution problem, thus realizing the sustainable development of livestock and poultry breeding industry.
Summary of the invention
Present invention aims to problems of the prior art, the preparation method that a kind of load iron modified activated carbon is provided, animal waste cattle manure is adopted to prepare activated carbon, realize the comprehensive utilization of agricultural wastes, and it is modifiied with ferrum further, improve its removal efficiency to pollutant such as phosphorus.
A kind of load iron modified activated carbon, is prepared by following steps:
(1) weigh Powdered Activated Carbon and iron salt mixing that mass ratio is 1:1～1:10, be dissolved in the distilled water under room temperature；
(2) mixture in described step (1) impregnating 15～45min under ultrasound wave, dipping temperature is 25～55 DEG C；
(3) regulating pH value of solution with alkaline solution is 7～8, after standing 24h, filters and dries.
Described Powdered Activated Carbon, employing cattle manure is raw material, is prepared by existing preparation method.
Further, described iron salt is the inorganic salt containing ferric ion, including iron chloride, iron sulfate, ferric nitrate.
Preferably, described Powdered Activated Carbon is 1:2 with the mass ratio of iron salt.
Preferably, described dipping temperature is 30 DEG C.
Further, described alkaline solution is sodium hydroxide solution.
The preparation method of the present invention, the shortcoming of the direct dipping process length consuming time of abandoning tradition, utilize ultrasound wave, make activated carbon that the load efficiency of iron chloride is reached 99.6%, almost load completely, and short time consumption is short.Solution containing phosphate clearance is up to 96% by modified activated carbon.
Accompanying drawing explanation
Fig. 1 is the SEM figure of the embodiment of the present invention 1 modified activated carbon；
Fig. 2 is the infrared spectrogram of the embodiment of the present invention 1 modified activated carbon；
Fig. 3 is the XRD figure of the embodiment of the present invention 1 modified activated carbon.
Detailed description of the invention
Embodiment 1
Weigh 1g Powdered Activated Carbon and the mixing of 2g iron chloride, be dissolved in 100ml distilled water；It is subsequently placed in ultrasonoscope, takes out after impregnating 40min at 30 DEG C；Regulating pH with sodium hydroxide solution is 7～8, stands after 24h, with vacuum filtration machine filtering solution, then by remaining activated carbon Muffle furnace 110 DEG C drying.
As it can be seen, load Fe3+The surface texture of rear activated carbon there occurs obvious change, and iron containing compounds is filled with the hole of activated carbon uniformly, and major part is the granule reunited so that activated carbon surface is more coarse, unordered.Oxygen-containing functional group in the ferrum of load and cattle manure matrix activated carbon has combined, and has promoted that the absorption with phosphorus system thing is combined, thus reaching the effect of phosphorus in removal water quality.
Weigh finished product described in 0.1g embodiment 1 in 100ml band plug conical flask, add 100ml20mg/L solution containing phosphate, at 30 DEG C, it is positioned in constant temperature oscillator, sucking filtration is taken out after 24h, measure the solution containing phosphate concentration 0.698mg/L of filtrate with mensuration National Standard Method (GB-1189389) ammonium molybdate spectrophotometric method of water quality total phosphorus, therefore the clearance of solution containing phosphate is (20-0.698)/20=96.51% by this sample.
Weigh finished product described in 0.1g embodiment 1 in 100ml band plug conical flask, add 100ml20mg/L solution containing phosphate, at 25 DEG C, it is positioned in constant temperature oscillator, respectively 2,5,10,20,30,40,60,80,120,240min sampling, sucking filtration, the solution containing phosphate concentration measuring filtrate with mensuration National Standard Method (GB-1189389) ammonium molybdate spectrophotometric method of water quality total phosphorus adopts pseudo-second order kinetic equation to be fitted:v0=k2qe 2.Obtain R2The equation of=0.9996, obtains adsorption equilibrium concentration according to equation coefficient and reaches 15.02mg/g.
Comparative example 1
Weigh 0.1g non-modified activated carbon in 100ml band plug conical flask, add 100ml20mg/L solution containing phosphate, at 30 DEG C, it is positioned in constant temperature oscillator, sucking filtration is taken out after 24h, measuring the solution containing phosphate concentration of filtrate with mensuration National Standard Method (GB-1189389) ammonium molybdate spectrophotometric method of water quality total phosphorus, compare and original go up not down containing phosphorus concentration, clearance is negative.
Institute obtains, and non-invention method modifiies the prepared activated carbon optimum clearance only 40%-50% to phosphorus.
Embodiment 2
Weigh 1g Powdered Activated Carbon and the mixing of 5g iron sulfate, be dissolved in 100ml distilled water；It is subsequently placed in ultrasonoscope, takes out after impregnating 15min at 25 DEG C；Regulating pH with sodium hydroxide solution is 7～8, stands after 24h, with vacuum filtration machine filtering solution, then by remaining activated carbon Muffle furnace 110 DEG C drying.
Embodiment 3
Weigh 1g Powdered Activated Carbon and the mixing of 10g ferric nitrate, be dissolved in 100ml distilled water；It is subsequently placed in ultrasonoscope, takes out after impregnating 45min at 55 DEG C；Regulating pH with sodium hydroxide solution is 7～8, stands after 24h, with vacuum filtration machine filtering solution, then by remaining activated carbon Muffle furnace 110 DEG C drying.

Claims (6)

1. a load iron modified activated carbon, it is characterised in that prepared by following steps:
(1) weigh Powdered Activated Carbon and iron salt mixing that mass ratio is 1:1 ~ 1:10, be dissolved in the distilled water under room temperature；
(2) mixture in described step (1) impregnating 15 ~ 45min under ultrasound wave, dipping temperature is 25 ~ 55 DEG C；
(3) regulating pH value of solution with alkaline solution is 7 ~ 8, after standing 24h, filters and dries.
2. load iron modified activated carbon according to claim 1, it is characterised in that described iron salt is iron chloride, iron sulfate, ferric nitrate.
3. load iron modified activated carbon according to claim 1, it is characterised in that the mass ratio of described Powdered Activated Carbon and iron salt is 1:2.
4. the preparation method of a load iron modified activated carbon, it is characterised in that comprise the following steps:
(1) weigh Powdered Activated Carbon and iron salt mixing that mass ratio is 1:1 ~ 1:10, be dissolved in the distilled water under room temperature；
(2) mixture in described step (1) impregnating 15 ~ 45min under ultrasound wave, dipping temperature is 25 ~ 55 DEG C；
(3) regulating pH value of solution with alkaline solution is 7 ~ 8, after standing 24h, filters and dries.
5. the preparation method of load iron modified activated carbon according to claim 4, it is characterised in that described iron salt is iron chloride, iron sulfate, ferric nitrate.
6. the preparation method of load iron modified activated carbon according to claim 4, it is characterised in that the mass ratio of described Powdered Activated Carbon and iron salt is 1:2.
CN201610309311.5A 2016-05-11 2016-05-11 Iron-loaded modified active carbon and preparation method thereof Pending CN105771900A (en)

Priority Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106902733A (en) * 2017-02-15 2017-06-30 上海理工大学 A kind of preparation method of cotton leftover bits and pieces base load iron absorbent charcoal material
CN107970890A (en) * 2017-11-30 2018-05-01 华南理工大学 A kind of hydroxyl iron-loaded modified activated carbon composite material and preparation method thereof
CN110684539A (en) * 2019-10-24 2020-01-14 河南城建学院 Conditioner for heavy metal contaminated soil and preparation method thereof
CN111644153A (en) * 2019-07-26 2020-09-11 中山大学 Supported activated carbon and preparation method and device thereof
CN111729646A (en) * 2020-06-15 2020-10-02 安徽农业大学 EGCG-iron particle green material for removing phosphorus in water and preparation method and application thereof
WO2021256946A1 (en) * 2020-06-17 2021-12-23 Qatar Foundation For Education, Science And Community Development Activated carbon-composite materials, filters, and preparation methods thereof

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CN102553533A (en) * 2012-03-27 2012-07-11 上海大学 Method for preparing composite dephosphorus adsorbent by virtue of activated carbon fiber loaded with metal
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106902733A (en) * 2017-02-15 2017-06-30 上海理工大学 A kind of preparation method of cotton leftover bits and pieces base load iron absorbent charcoal material
CN107970890A (en) * 2017-11-30 2018-05-01 华南理工大学 A kind of hydroxyl iron-loaded modified activated carbon composite material and preparation method thereof
CN111644153A (en) * 2019-07-26 2020-09-11 中山大学 Supported activated carbon and preparation method and device thereof
CN110684539A (en) * 2019-10-24 2020-01-14 河南城建学院 Conditioner for heavy metal contaminated soil and preparation method thereof
CN110684539B (en) * 2019-10-24 2022-04-19 河南城建学院 Conditioner for heavy metal contaminated soil and preparation method thereof
CN111729646A (en) * 2020-06-15 2020-10-02 安徽农业大学 EGCG-iron particle green material for removing phosphorus in water and preparation method and application thereof
WO2021256946A1 (en) * 2020-06-17 2021-12-23 Qatar Foundation For Education, Science And Community Development Activated carbon-composite materials, filters, and preparation methods thereof

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Inventor after: Liu Tingfeng

Inventor after: Hu Zhixin

Inventor after: Lu Weiwei

Inventor after: Wang Er

Inventor after: Qin Ling

Inventor after: Tao Bingchi

Inventor after: Chen Fei

Inventor before: Lu Weiwei

Inventor before: Liu Tingfeng

Inventor before: Wang Er

Inventor before: Qin Ling

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Inventor before: Chen Fei

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Application publication date: 20160720

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