CN101912767A - Method for preparing modified furfural residue heavy metal adsorbent - Google Patents

Method for preparing modified furfural residue heavy metal adsorbent Download PDF

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CN101912767A
CN101912767A CN2010102675179A CN201010267517A CN101912767A CN 101912767 A CN101912767 A CN 101912767A CN 2010102675179 A CN2010102675179 A CN 2010102675179A CN 201010267517 A CN201010267517 A CN 201010267517A CN 101912767 A CN101912767 A CN 101912767A
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heavy metal
furfural residue
furfural
adsorbent
metal adsorbent
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CN101912767B (en
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张东
唐洁
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Shenyang Everbright Environmental Protection Technology Co ltd
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Shenyang Ligong University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention provides a method for preparing modified furfural residue heavy metal adsorbent, which treats wastewater containing heavy metal by directly using modified furfural residue. The method comprises the following steps of: drying and crushing the furfural residue, soaking the crushed furfural residue into sodium hydroxide solution with certain concentration to hydroxylate cellulose molecules therein, performing pump-filtering (or pressure-filtering) separation, and washing and drying the treated furfural residue to obtain the hydroxy-rich heavy metal adsorbent. The heavy metal adsorbent prepared by the method has the advantages of low cost, simple process, high adsorption capacity, wide application range, stable performance, regeneration, repeated use and the like. The invention provides a new path for utilization of the furfural residue and treatment of the wastewater containing the heavy metal, the method can be used for resource recycling of the furfural residue, and the adsorbent can be widely used for treatment of the wastewater containing the heavy metal and reclamation of the heavy metal.

Description

A kind of preparation method of modified furfural residue heavy metal adsorbent
Technical field
The invention belongs to changing waste into resources utilization and water-treatment technology field, relate to the utilization of furfural dregs and adsorb heavy metal in removal and the recycle-water.Specifically, be that the furfural dregs oven dry is pulverized, modification obtains a kind of efficient heavy ion adsorbent after handling, and is used for adsorbing the method that reclaims the industrial wastewater heavy metal.
Technical background
Heavy metal is a kind of poisonous element that can accumulate in vivo, and along with industrial expansion, heavy metal pollution is subjected to extensive attention, and heavy metal can be accumulated and enrichment the serious harm life and health after entering environment in biological chain.The place to go method of heavy metal mainly contains chemical precipitation method, electrolysis, ion-exchange, membrane separation process and absorption method in the water at present, and wherein absorption method has the secondary pollution of not producing owing to it, advantages such as renewable recovery, and enjoy attention.At present, the most frequently used adsorbent has active carbon and modified cellulose etc., and still most adsorbent is because of the cost height or complex manufacturing limits its application.
Furfural be a kind of can't be with the synthetic important chemical material of manual method; normally adopt corncob; fibrous agricultural and sideline clout such as cotton seed hull is a raw material; obtain by hydrolysis; but; in the furfural production process; furfural per ton approximately produces 10 tons waste residue; annual nearly 3,000 ten thousand tons of the furfural dregs that produces of China; at present; have and prepare shaped fuel (CN200710180491.2) with furfural dregs; preparation granular activated carbon (CN88101457) preparation lignosulfonates (02109524.8) and preparation absolute ethyl alcohol patent reports such as (200810227978.6); but be subjected to the restriction of technical conditions, realize not that so far the technical scaleization of furfural dregs is utilized again.Most of enterprise is the fuel of furfural dregs as the air feed boiler, and this is not only the waste of resource, and generation contains sour waste gas, contaminated environment in combustion process.By analysis, contain the cellulose more than 40% in the furfural dregs, cellulose itself has certain adsorption capacity, and still, furfural dregs is because through high temperature sulfuric acid boiling hydrolysis, cellulosic network structure and intramolecular hydroxyl are destroyed substantially, and adsorption capacity is very weak.It is stronger it to be had by chemical modification, more active group, on furfural dregs, introduce ionic group with alkalescence or closing property of huge legendary turtle, this can change the original character of furfural dregs to a great extent, makes its characteristics with ion exchange resin, has fluffy structure simultaneously, make adsorbent both have the adsorption capacity of active carbon, again than the easier regeneration of polymeric adsorbent, and stability is high, and price is far below polymeric adsorbent and active carbon.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of modified furfural residue heavy metal adsorbent.
The technical scheme that adopts is:
A kind of preparation method of modified furfural residue heavy metal adsorbent comprises following processing step: get furfural dregs drying (or drying), grind, sieve, obtaining particle diameter is the furfural dregs powder of 0.2mm-0.01mm; The furfural dregs powder of pulverizing is immersed in 20% the sodium hydroxide solution, stirs, soaked 24-36 hour, suction filtration (or press filtration), the residual hydrogen sodium oxide molybdena is removed in washing, and powder is dried and is promptly made modified furfural residue heavy metal adsorbent of the present invention.
Description of drawings
Accompanying drawing 1 is handled the infrared spectrum of front and back for the furfural dregs modification.Spectral line 1 is the infrared spectrum of furfural dregs among the figure; Spectral line 2 is furfural dregs infrared spectrum after the modification.
The specific embodiment
By example method of the present invention and technology are illustrated:
Embodiment 1: the preparation of modified furfural residue heavy metal adsorbent
Get furfural dregs drying (or drying), grind, sieve, obtaining particle diameter is the furfural dregs powder of 0.2mm-0.01mm; The furfural dregs powder of pulverizing is immersed in 20% the sodium hydroxide solution, stirs, soaked 24 hours, suction filtration (or press filtration), the residual hydrogen sodium oxide molybdena is removed in washing, and powder is dried and is promptly made modified furfural residue heavy metal adsorbent of the present invention.
Embodiment 2: heavy metal absorbent is to the adsorption effect of heavy metal lead
The plumbous standard liquid 1L of preparation 0.1g/L, adjust pH are greater than 3, with the adsorbent 1g of embodiment 1 preparation, join in this lead standard liquid, under room temperature, stir (or vibration) absorption 10 minutes, left standstill 1 hour, suction filtration absorbs the concentration of surveying lead in the filtrate with atom, and calculating clearance is 98.6%.
Embodiment 3: heavy metal reclaims
Adsorbed the salpeter solution that plumbous adsorbent adds 10mL 0.5mol/L among the embodiment 2, stirred (or vibration) 5 minutes, soaked 30 minutes, suction filtration (or press filtration) with concentration plumbous in the atomic absorption detecting filtrate, calculates the wash-out rate of recovery.
Embodiment 4: the regeneration of modified furfural residue heavy metal adsorbent
Wash-out among the embodiment 3 is reclaimed adsorbent behind the heavy metal lead, be soaked in 20% the sodium hydroxide solution, stir, soaked 24 hours, suction filtration (or press filtration), the residual hydrogen sodium oxide molybdena is removed in washing, and powder is dried and is promptly finished regeneration.

Claims (1)

1. the preparation method of a modified furfural residue heavy metal adsorbent, its feature comprises following processing step:
Get furfural dregs drying (or drying), grind, sieve, obtaining particle diameter is the furfural dregs powder of 0.2mm-0.01mm; The furfural dregs powder of pulverizing is immersed in 20% the sodium hydroxide solution, stirs, soaked 24-36 hour, suction filtration (or press filtration), the residual hydrogen sodium oxide molybdena is removed in washing, and powder is dried and is promptly made modified furfural residue heavy metal adsorbent of the present invention.
CN2010102675179A 2010-08-31 2010-08-31 Method for preparing modified furfural residue heavy metal adsorbent Active CN101912767B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513067A (en) * 2012-01-19 2012-06-27 山东轻工业学院 Adsorbent for adsorbing heavy metal ions in wastewater and adsorption process
CN103055817A (en) * 2013-01-08 2013-04-24 沈阳理工大学 Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof
CN103111265A (en) * 2013-02-27 2013-05-22 南京工业大学 Preparation method of adsorbent for removing antibiotics in water, prepared adsorbent and application thereof
RU2495830C1 (en) * 2012-04-28 2013-10-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановский государственный химико-технологический университет" Method of extracting ions of heavy metals from aqueous solutions
CN106512953A (en) * 2016-11-02 2017-03-22 大连工业大学 A novel efficient heavy metal adsorbent, a preparing method thereof and applications of the adsorbent
CN110577299A (en) * 2019-10-18 2019-12-17 河北渤海远达环境检测技术服务有限公司 method for treating hot galvanizing pickling wastewater and preparing carbon-loaded iron-zinc binary metal composite material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239303A (en) * 2008-03-18 2008-08-13 上海大学 Alkalization modifying method of luffa and use thereof
WO2010028516A1 (en) * 2008-09-11 2010-03-18 Universidad De Santiago De Chile Method for removing toxic heavy metals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239303A (en) * 2008-03-18 2008-08-13 上海大学 Alkalization modifying method of luffa and use thereof
WO2010028516A1 (en) * 2008-09-11 2010-03-18 Universidad De Santiago De Chile Method for removing toxic heavy metals

Non-Patent Citations (2)

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Title
《沈阳理工大学学报》 20090630 任广军等 糠醛渣对亚甲基蓝的吸附性能研究 第62-65页 1 第28卷, 第3期 2 *
《电镀与精饰》 20090630 任广军等 糠醛渣对Cr(VI)的吸附性能 第9-11，20页 1 第31卷, 第6期 2 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513067A (en) * 2012-01-19 2012-06-27 山东轻工业学院 Adsorbent for adsorbing heavy metal ions in wastewater and adsorption process
RU2495830C1 (en) * 2012-04-28 2013-10-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановский государственный химико-технологический университет" Method of extracting ions of heavy metals from aqueous solutions
CN103055817A (en) * 2013-01-08 2013-04-24 沈阳理工大学 Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof
CN103111265A (en) * 2013-02-27 2013-05-22 南京工业大学 Preparation method of adsorbent for removing antibiotics in water, prepared adsorbent and application thereof
CN103111265B (en) * 2013-02-27 2015-06-10 南京工业大学 Preparation method of adsorbent for removing antibiotics in water, prepared adsorbent and application thereof
CN106512953A (en) * 2016-11-02 2017-03-22 大连工业大学 A novel efficient heavy metal adsorbent, a preparing method thereof and applications of the adsorbent
CN110577299A (en) * 2019-10-18 2019-12-17 河北渤海远达环境检测技术服务有限公司 method for treating hot galvanizing pickling wastewater and preparing carbon-loaded iron-zinc binary metal composite material
CN110577299B (en) * 2019-10-18 2021-08-27 河北渤海远达环境检测技术服务有限公司 Method for treating hot galvanizing pickling wastewater and preparing carbon-loaded iron-zinc binary metal composite material

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