CN106311192A - Novel preparation process of heavy metal absorbent - Google Patents

Novel preparation process of heavy metal absorbent Download PDF

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Publication number
CN106311192A
CN106311192A CN201610779943.8A CN201610779943A CN106311192A CN 106311192 A CN106311192 A CN 106311192A CN 201610779943 A CN201610779943 A CN 201610779943A CN 106311192 A CN106311192 A CN 106311192A
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CN
China
Prior art keywords
heavy metal
metal absorbent
conditions
solution
deionized water
Prior art date
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Pending
Application number
CN201610779943.8A
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Chinese (zh)
Inventor
熊小芳
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Individual
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Individual
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Priority to CN201610779943.8A priority Critical patent/CN106311192A/en
Publication of CN106311192A publication Critical patent/CN106311192A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • 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
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/485—Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/4856—Proteins, DNA
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention discloses a novel preparation process of a heavy metal absorbent. The preparation process of the heavy metal absorbent comprises steps as follows: waste potato dregs are taken as raw materials, cleaned, dried and ground into powder and then react with amylase and protease; a product then reacts with a NaOH solution and is subjected to a neutralization reaction with a dilute H2SO4 solution; then filtering and drying in the air are performed, dried powder is mixed with urea, and a proper amount of deionized water is added; filtering and cleaning are performed after the reaction, drying is performed finally, and the heavy metal absorbent can be prepared. The preparation process is simple and low in cost and has better application prospect.

Description

A kind of preparation technology of novel heavy metal absorbent
Technical field
The present invention relates to a kind of heavy metal absorbent, particularly to can be used as processing a kind of adsorbent and the system of waste water Preparation Method.
Background technology
Along with industrialized development, heavy metal pollution is increasingly severe.Heavy metal pollution and the dirt of other organic compound Dye difference, many organic compound can make harmfulness reduce by the physics of nature own, chemistry or the purification of biology Or release.And source of heavy metal pollution is many decades even a century and is all difficult to degrade.Heavy metal pollution is main is contaminant water Source, after these polluted sources enter environment or ecosystem, can carry out shifting by food chain, accumulates, amplify, thus to us Life brings harm greatly.
At present be commonly used to process heavy metal-containing waste water method have flocculence, advanced oxidation processes, membrane separation process, electrolysis also Former methods etc., these methods are because treatment effeciency is low or high in cost of production problem, it is difficult to promoting the use of on a large scale, people begin look for inexpensively It is easy to get, can widely used process method for waste water.Organism absorption by living in recent years is removed the method for heavy metal and is caused Paying close attention to, this method mainly utilizes hyperaccumulative plant, algae and microorganism heavy metal to have bigger absorbability to remove waste water In heavy metal, but process sewage limited, therefore by Biomass and the growth characteristics of organism itself with the organism lived So far such method is also unsuitable for applying on a large scale.Modified cellulose class adsorbent is current cellulose functional high molecule material One of important development direction.
Containing cellulose in soil dynamic test, the hydroxyl on glucose basic ring in cellulose chain can be esterified, enzymology and Copolyreaction, therefore can react soil dynamic test to introducing by be esterified, be etherified or chelating etc. and have acidity, alkalescence or Chelating Properties Group, modification be prepared as a kind of low cost heavy-metal adsorption material, the present invention is with soil dynamic test as raw material, by enzymology, ester Change a kind of heavy metal absorbent of modification preparation.
Summary of the invention
It is an object of the invention to provide a kind of technique utilizing waste soil bean dregs to prepare heavy metal absorbent, by following skill Art step realizes:
(1) take appropriate waste soil bean dregs, be first carried out with tap water, then with distilled water wash, dry under the conditions of 80 DEG C To constant weight；
(2) by drying object grinds, cross 60 mesh sieves, collect powder；
(3) the powder collected is soaked in deionized water, add amylase and the albumen of the 0.01-0.05mol/L activated Enzyme, reacts 1-2 hour under the conditions of 35-50 DEG C；
(4) add the NaOH solution of 0.05-0.1mol/L, react 30-60 minute, then use dilute H2SO4Solution neutralizes；
(5) will neutralize gained solution to filter, then dry, the powder dried be mixed homogeneously by the quality ratio of 1:1 with carbamide, again Soak in deionized water, react 5-10 hour under the conditions of 50 DEG C；
The most again solution is filtered, afterwards by deionized water or the ionic liquid of 3-4 the removing residual of alcohol washes with 95%, clean After under conditions of 50 DEG C drying one heavy metal absorbent.
Preferentially, step (4) in used dilute H2SO4The mass fraction of solution is less than 15%.
Preferentially, step (5) in, drying is to use the mode dried of nature.
The present invention has following advantages and characteristic；
(1) manufacture method is simple, with low cost；
(2) environmental friendliness, free from environmental pollution.
Detailed description of the invention
Embodiment one:
Take appropriate waste soil bean dregs, be first carried out with tap water, then with distilled water wash, dry under the conditions of 80 DEG C to permanent Weight, by drying object grinds, crosses 60 mesh sieves, collects powder, weighs gained powder 50g and soaks in deionized water, adds activation Good 0.01mol/L amylase solution and each 2mL of protein enzyme solution, react 1 hour under the conditions of 35-50 DEG C, be subsequently adding The 0.05mol/L NaOH solution of 10mL, reacts 50 minutes, then uses H2SO4Solution neutralizes, and filters neutralizing gained liquid, then dries in the air Dry；The powder dried is soaked in deionized water than after mixing homogeneously by the quality of 1:1 again with carbamide, under the conditions of 50 DEG C React 6 hours, filter, clean 3 times the ionic liquid removing residual, then the alcohol washes 2 times with 95% afterwards with deionized water, wash Drying heavy metal absorbent in the Constant Temp. Oven of 50 DEG C is put into after Jing.
Embodiment two:
Take appropriate waste soil bean dregs, be first carried out with tap water, then with distilled water wash, dry under the conditions of 80 DEG C to permanent Weight, by drying object grinds, crosses 60 mesh sieves, collects powder, weighs gained powder 50g and soaks in deionized water, adds activation Good 0.05mol/L amylase solution and each 2mL of protein enzyme solution, react 2 hours under the conditions of 35-50 DEG C, be subsequently adding The 0.1mol/L NaOH solution of 10mL, reacts 50 minutes, then uses H2SO4Solution neutralizes.Filter neutralizing gained liquid, then dry in the air Dry；The powder dried is soaked in deionized water than after mixing homogeneously by the quality of 1:1 again with carbamide, under the conditions of 50 DEG C React 8 hours, filter, clean 3 times the ionic liquid removing residual, then the alcohol washes 2 times with 95% afterwards with deionized water, wash Drying heavy metal absorbent in the Constant Temp. Oven of 50 DEG C is put into after Jing.
Embodiment three:
Take appropriate waste soil bean dregs, be first carried out with tap water, then with distilled water wash, dry under the conditions of 80 DEG C to permanent Weight, by drying object grinds, crosses 60 mesh sieves, collects powder, add appropriate amount of deionized water, adds the 0.05mol/L activated and forms sediment Powder enzymatic solution and each 2mL of protein enzyme solution, react 2 hours under the conditions of 50 DEG C, and the 0.1mol/L NaOH being subsequently adding 5L is molten Liquid, reacts 1 hour, then uses H2SO4Solution neutralizes, and will neutralize gained liquid sheet frame compressor and filter, then dry；By dry Powder is squeezed in 3 tons of sanitary cans than after mixing homogeneously by the quality of 1:1 again with carbamide, and injects deionized water, is maintained at 50 React 8 hours under the conditions of DEG C, filter, clean 4 times the ionic liquid removing residual afterwards with deionized water, the temperature of 50 DEG C after cleaning Under degree, it is dried drying heavy metal absorbent.

Claims (2)

1. a heavy metal absorbent, it is characterised in that the preparation method of this heavy metal absorbent sequentially includes the following steps:
(1) take appropriate waste soil bean dregs, be first carried out with tap water, then with distilled water wash, dry under the conditions of 80 DEG C To constant weight；
(2) by drying object grinds, cross 60 mesh sieves, collect powder；
(3) the powder collected is soaked in deionized water, add amylase and the albumen of the 0.01-0.05mol/L activated Enzyme, reacts 1-2 hour under the conditions of 35-50 DEG C；
(4) add the NaOH solution of 0.05-0.1mol/L, react 30-60 minute, then use dilute H2SO4Solution neutralizes；
(5) will neutralize gained solution to filter, then dry, the powder dried be mixed homogeneously by the quality ratio of 1:1 with carbamide, again Soak in deionized water, react 5-10 hour under the conditions of 50 DEG C；
The most again solution is filtered, afterwards by deionized water or the ionic liquid of 3-4 the removing residual of alcohol washes with 95%, clean After under conditions of 50 DEG C drying one heavy metal absorbent.
A kind of heavy metal absorbent the most according to claim 1, it is characterised in that step (4) in dilute H used2SO4Molten The mass fraction of liquid is less than 15%.
CN201610779943.8A 2016-08-31 2016-08-31 Novel preparation process of heavy metal absorbent Pending CN106311192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610779943.8A CN106311192A (en) 2016-08-31 2016-08-31 Novel preparation process of heavy metal absorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610779943.8A CN106311192A (en) 2016-08-31 2016-08-31 Novel preparation process of heavy metal absorbent

Publications (1)

Publication Number Publication Date
CN106311192A true CN106311192A (en) 2017-01-11

Family

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Application Number Title Priority Date Filing Date
CN201610779943.8A Pending CN106311192A (en) 2016-08-31 2016-08-31 Novel preparation process of heavy metal absorbent

Country Status (1)

Country Link
CN (1) CN106311192A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103861570A (en) * 2014-04-04 2014-06-18 何崇康 Novel bagasse absorbing material as well as preparation method thereof
CN104028224A (en) * 2014-06-01 2014-09-10 何芳玲 Wheat straw adsorption material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103861570A (en) * 2014-04-04 2014-06-18 何崇康 Novel bagasse absorbing material as well as preparation method thereof
CN104028224A (en) * 2014-06-01 2014-09-10 何芳玲 Wheat straw adsorption material and preparation method thereof

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Application publication date: 20170111