CN106732414A - A kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease and preparation method thereof - Google Patents
A kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease and preparation method thereof Download PDFInfo
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- CN106732414A CN106732414A CN201611078207.6A CN201611078207A CN106732414A CN 106732414 A CN106732414 A CN 106732414A CN 201611078207 A CN201611078207 A CN 201611078207A CN 106732414 A CN106732414 A CN 106732414A
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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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
- C02F1/28—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
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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
- 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
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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
- 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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Natural plant material heavy metal wastewater thereby adsorbent the invention discloses a kind of Modification by Protease and preparation method thereof, is matched and constituted by weight by following components：23~38 parts of protease, 12~26 parts of cellulase, 12~25 parts of peanut shell, 17~34 parts of rice hulls, 18~30 parts of wood chip, 13~26 parts of copper nitrate, 12~24 parts of zinc chloride, 12~19 parts of sodium carbonate, 12~23 parts of hydrochloric acid.(1) the natural plant material heavy metal wastewater thereby adsorbent permeability of Modification by Protease of the present invention is good, and can accelerate the heavy metal ion that cell treatment has been adsorbed；(2) the natural plant material heavy metal wastewater thereby adsorbent collection Electrostatic Absorption of Modification by Protease of the present invention, complexing, ion exchange, microdeposit and redox reaction process, improve the removal efficiency of heavy metal ions in wastewater.
Description
Technical field
The invention belongs to field of environment protection, it is related to a kind of heavy metal pollution of water body recovery technique, more particularly to a hatching egg
Natural plant material heavy metal wastewater thereby adsorbent of white enzyme modification and preparation method thereof.
Background technology
Since the concern that the seventies in last century, biological adsorption caused people, the research of biological adsorption becomes to live very much
Jump.The external research to biological Adsorption of Heavy Metals is relative earlier will to be had begun to explore practical application now.Nearly 30
It is external over year that substantial amounts of research has been done in terms of bacterium, fungi, marine alga are applied to biological adsorption, but according to its present situation and development
Trend sees that marine alga is wherein to study more, this may with algal source extensively, contain abundant relevant.
At home, research of the people to biological adsorption treatment metal ion will a little later, and recent years, someone was in this side
Some explorations have been done in face, and result of the test shows, microbial strains of the screening with adsorption activity from nature, and by reinforcing
The treatment cultivated for heavy metal wastewater thereby is feasible.Additionally, the scope of biological adsorption agent is not limited to microorganism, some plants
Also there is stronger adsorption capacity with cellulose.
Improvement fiber (corn powder) adsorbent is applied in the prior art, and chromium, copper, lead, nickel and zinc are removed from weak solution
Ion, it was therefore concluded that the cornstalk powder for being not much commercial value is a kind of effective sorbing material, can be used for containing heavy metal
The purification of the waste water of ion.
Additionally, have studied the characterization of adsorption of low concentration lead waste water of the Radix Isatidis dregs of a decoction to preparing, as a result show, Radix Isatidis
The dregs of a decoction can quick, substantial amounts of Adsorption of Lead.
In macroscopical adsorption process, most scholars think that biological adsorption is divided into：The absorption of living cells and dead cell.It is living
Cell absorption is divided into two stages：First stage is unrelated with metabolism, is biosorption process, and in the process, metal ion can
Can by coordination, chelating, ion exchange, physical absorption and microdeposit etc. it is active one or more be combined to cell surface.
The effect of metal and bio-matrix is very fast in this stage, and typical adsorption process several minutes are to complete；Second stage is biology
Cumulative process, in this stage metal will be transported to intracellular.
But the adsorption rate of the above-mentioned heavy metal ion of living cells in the prior art is slower, and cell heavy metal suction
It is attached easily saturated phenomenon occur.
The content of the invention
Present invention solves the technical problem that：In order to overcome the defect of prior art, a kind of permeability of acquisition is good, and can add
The adsorbent of the heavy metal ion that fast cell treatment has been adsorbed, the invention provides a kind of natural plant material of Modification by Protease
Heavy metal wastewater thereby adsorbent and preparation method thereof.
Technical scheme：The natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease, by following components by weight
Amount number proportioning composition：23~38 parts of protease, 12~26 parts of cellulase, 12~25 parts of peanut shell, 17~34 parts of rice hulls,
18~30 parts of wood chip, 13~26 parts of copper nitrate, 12~24 parts of zinc chloride, 12~19 parts of sodium carbonate, 12~23 parts of hydrochloric acid.
Preferably, the natural plant material heavy metal wastewater thereby adsorbent of the Modification by Protease by following components by weight
Number proportioning composition：2 parts of protease 3,21 parts of cellulase, 19 parts of peanut shell, 28 parts of rice hulls, 24 parts of wood chip, 22 parts of copper nitrate,
18 parts of zinc chloride, 15 parts of sodium carbonate, 20 parts of hydrochloric acid.
A kind of preparation method of the natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, it is characterised in that bag
Containing following steps：
(1) prepared by adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding is 20~50 to particle diameter
Mesh, is placed in baking oven 100~120 DEG C and processes 60~85 minutes；
(2) it is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible and heats, Bian Jia
Hot side is added dropwise 8~25% sulfuric acid solution, stops heating afterwards in the pasty state；
(3) it is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through adsorbent matrix modified for the first time
In, after being well mixed, 35~50 DEG C are reacted 1~3.5 hour, and crucible continues to heat, stopping heating of being volatilized completely to moisture；
(4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, after being well mixed, 4~8 DEG C anti-
Answer 40~80 minutes；
(5) finished product：Crosslinked reacted product is placed in baking oven, and 100~120 DEG C of reactions 1~3.5 hour can system
.
Preferably, prepared by step (1) adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding, extremely
Particle diameter is 35 mesh, is placed in baking oven 108 DEG C and processes 80 minutes.
Preferably, step (2) is modified for the first time：By in protease and cellulase addition adsorbent matrix, crucible is placed in
Middle heating, 18% sulfuric acid solution is added dropwise in heating, stops heating afterwards in the pasty state.
Preferably, step (3) is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through modified for the first time
In adsorbent matrix, after being well mixed, 42 DEG C are reacted 3 hours, and crucible continues to heat, stopping heating of being volatilized completely to moisture.
Preferably, step (4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, it is well mixed
Afterwards, 5 DEG C are reacted 60 minutes.
Preferably, step (5) finished product：Crosslinked reacted product is placed in baking oven, and 112 DEG C are reacted 2.5 hours
It is obtained.
Beneficial effect：(1) the natural plant material heavy metal wastewater thereby adsorbent permeability of Modification by Protease of the present invention
It is good, and the heavy metal ion that cell treatment has been adsorbed can be accelerated；(2) natural plant material of Modification by Protease of the present invention
Heavy metal wastewater thereby adsorbent collection Electrostatic Absorption, complexing, ion exchange, microdeposit and redox reaction process, in raising waste water
The removal efficiency of heavy metal ion.
Specific embodiment
Embodiment 1
A kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, is matched by weight by following components
Composition：23 parts of protease, 12 parts of cellulase, 12 parts of peanut shell, 17 parts of rice hulls, 18 parts of wood chip, 13 parts of copper nitrate, zinc chloride
12 parts, 12 parts of sodium carbonate, 12 parts of hydrochloric acid.
A kind of preparation method of the natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, it is characterised in that bag
Containing following steps：
(1) prepared by adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding is 20 mesh to particle diameter,
100 DEG C are placed in baking oven to process 60 minutes；
(2) it is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible and heats, Bian Jia
Hot side is added dropwise 8% sulfuric acid solution, stops heating afterwards in the pasty state；
(3) it is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through adsorbent matrix modified for the first time
In, after being well mixed, 35 DEG C are reacted 1 hour, and crucible continues to heat, stopping heating of being volatilized completely to moisture；
(4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, after being well mixed, 4 DEG C are reacted 40
Minute；
(5) finished product：Crosslinked reacted product is placed in baking oven, and 100 DEG C of reactions can be prepared by for 1 hour.
Embodiment 2
A kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, is matched by weight by following components
Composition：2 parts of protease 3,21 parts of cellulase, 19 parts of peanut shell, 28 parts of rice hulls, 24 parts of wood chip, 22 parts of copper nitrate, zinc chloride
18 parts, 15 parts of sodium carbonate, 20 parts of hydrochloric acid.
A kind of preparation method of the natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, it is characterised in that bag
Containing following steps：
(1) prepared by adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding is 35 mesh to particle diameter,
108 DEG C are placed in baking oven to process 80 minutes；
(2) it is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible and heats, Bian Jia
Hot side is added dropwise 18% sulfuric acid solution, stops heating afterwards in the pasty state；
(3) it is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through adsorbent matrix modified for the first time
In, after being well mixed, 42 DEG C are reacted 3 hours, and crucible continues to heat, stopping heating of being volatilized completely to moisture；
(4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, after being well mixed, 5 DEG C are reacted 60
Minute；
(5) finished product：Crosslinked reacted product is placed in baking oven, and 112 DEG C of reactions can be prepared by for 2.5 hours.
Embodiment 3
A kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, is matched by weight by following components
Composition：8 parts of protease 3,26 parts of cellulase, 25 parts of peanut shell, 34 parts of rice hulls, 30 parts of wood chip, 26 parts of copper nitrate, zinc chloride
24 parts, 19 parts of sodium carbonate, 23 parts of hydrochloric acid.
A kind of preparation method of the natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease, it is characterised in that bag
Containing following steps：
(1) prepared by adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding is 50 mesh to particle diameter,
120 DEG C are placed in baking oven to process 85 minutes；
(2) it is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible and heats, Bian Jia
Hot side is added dropwise 25% sulfuric acid solution, stops heating afterwards in the pasty state；
(3) it is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through adsorbent matrix modified for the first time
In, after being well mixed, 50 DEG C are reacted 3.5 hours, and crucible continues to heat, stopping heating of being volatilized completely to moisture；
(4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, after being well mixed, 8 DEG C are reacted 80
Minute；
(5) finished product：Crosslinked reacted product is placed in baking oven, and 120 DEG C of reactions can be prepared by for 3.5 hours.
The natural plant material heavy metal wastewater thereby adsorbent of the Modification by Protease prepared to embodiment 1~3 is examined
Survey, it is as a result as shown in the table：
Claims (8)
1. the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease, it is characterised in that by following components by weight
Amount number proportioning composition：23~38 parts of protease, 12~26 parts of cellulase, 12~25 parts of peanut shell, 17~34 parts of rice hulls,
18~30 parts of wood chip, 13~26 parts of copper nitrate, 12~24 parts of zinc chloride, 12~19 parts of sodium carbonate, 12~23 parts of hydrochloric acid.
2. a kind of natural plant material heavy metal wastewater thereby adsorbent of Modification by Protease according to claim 1, its feature
It is to be matched by weight by following components and constituted：2 parts of protease 3,21 parts of cellulase, 19 parts of peanut shell, rice hulls 28
Part, 24 parts of wood chip, 22 parts of copper nitrate, 18 parts of zinc chloride, 15 parts of sodium carbonate, 20 parts of hydrochloric acid.
3. the preparation method of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease described in claim 1,
Characterized in that, comprising the steps of：
(1) prepared by adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding is 20~50 mesh to particle diameter,
100~120 DEG C are placed in baking oven to process 60~85 minutes；
(2) it is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible and heats, in heating
8~25% sulfuric acid solution is added dropwise, stops heating afterwards in the pasty state；
(3) it is modified for second：During copper nitrate, zinc chloride and sodium carbonate are added through adsorbent matrix modified for the first time, mix
After closing uniformly, 35~50 DEG C are reacted 1~3.5 hour, and crucible continues to heat, and stopping of being volatilized completely to moisture is heated；
(4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, after being well mixed, 4~8 DEG C are reacted 40
~80 minutes；
(5) finished product：Crosslinked reacted product is placed in baking oven, and 100~120 DEG C of reactions can be prepared by for 1~3.5 hour.
4. the preparation side of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease according to claim 3
Method, it is characterised in that prepared by step (1) adsorbent matrix：After peanut shell, rice hulls and wood chip are mixed, attrition grinding, to grain
Footpath is 35 mesh, is placed in baking oven 108 DEG C and processes 80 minutes.
5. the preparation side of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease according to claim 3
Method, it is characterised in that step (2) is modified for the first time：By in protease and cellulase addition adsorbent matrix, it is placed in crucible
Heating, 18% sulfuric acid solution is added dropwise in heating, stops heating afterwards in the pasty state.
6. the preparation side of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease according to claim 3
Method, it is characterised in that step (3) is modified for second：Copper nitrate, zinc chloride and sodium carbonate are added through suction modified for the first time
In attached dose of matrix, after being well mixed, 42 DEG C are reacted 3 hours, and crucible continues to heat, stopping heating of being volatilized completely to moisture.
7. the preparation side of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease according to claim 3
Method, it is characterised in that step (4) cross-linking reaction：To hydrochloric acid is added in second modified adsorbent matrix, it is well mixed
Afterwards, 5 DEG C are reacted 60 minutes.
8. the preparation side of the natural plant material heavy metal wastewater thereby adsorbent of a kind of Modification by Protease according to claim 3
Method, it is characterised in that step (5) finished product：Crosslinked reacted product is placed in baking oven, and 112 DEG C of reactions 2.5 hours can system
.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553171A (en) * | 2019-01-04 | 2019-04-02 | 湖南科技大学 | Charcoal flocculant and its preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872811A (en) * | 2012-08-02 | 2013-01-16 | 华南理工大学 | Water body oil-spilling adsorbent prepared from modified agricultural straws, and preparation method and application of water body oil-spilling adsorbent |
| CN103949223A (en) * | 2014-04-15 | 2014-07-30 | 华南理工大学 | Preparation method of adsorbent used for removing fermentation inhibitor |
| CN104028228A (en) * | 2014-06-01 | 2014-09-10 | 李�荣 | Novel peanut straw adsorbing material and preparation method thereof |
| CN104190370A (en) * | 2014-08-18 | 2014-12-10 | 浙江海洋学院 | Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate |
| CN105040498A (en) * | 2015-08-26 | 2015-11-11 | 海南大学 | Method and application for extracting cellulose from manioc waste |
-
2016
- 2016-11-30 CN CN201611078207.6A patent/CN106732414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872811A (en) * | 2012-08-02 | 2013-01-16 | 华南理工大学 | Water body oil-spilling adsorbent prepared from modified agricultural straws, and preparation method and application of water body oil-spilling adsorbent |
| CN103949223A (en) * | 2014-04-15 | 2014-07-30 | 华南理工大学 | Preparation method of adsorbent used for removing fermentation inhibitor |
| CN104028228A (en) * | 2014-06-01 | 2014-09-10 | 李�荣 | Novel peanut straw adsorbing material and preparation method thereof |
| CN104190370A (en) * | 2014-08-18 | 2014-12-10 | 浙江海洋学院 | Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate |
| CN105040498A (en) * | 2015-08-26 | 2015-11-11 | 海南大学 | Method and application for extracting cellulose from manioc waste |
Non-Patent Citations (2)
| Title |
|---|
| 慈金娜等: ""三种改性玉米秸秆对亚甲基蓝吸附性能的影响"", 《吉林农业大学学报》 * |
| 杨乐萍: ""竹木质纤维素结构调控即吸附海洋蛋白酶解液中重金属离子研究"", 《中国硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553171A (en) * | 2019-01-04 | 2019-04-02 | 湖南科技大学 | Charcoal flocculant and its preparation method and application |
| CN109553171B (en) * | 2019-01-04 | 2021-08-24 | 湖南科技大学 | Biochar flocculant and preparation method and application thereof |
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Application publication date: 20170531 |