CN110975828B - Adsorbing material for purifying sludge incineration flue gas and preparation method thereof - Google Patents
Adsorbing material for purifying sludge incineration flue gas and preparation method thereof Download PDFInfo
- Publication number
- CN110975828B CN110975828B CN201911142157.7A CN201911142157A CN110975828B CN 110975828 B CN110975828 B CN 110975828B CN 201911142157 A CN201911142157 A CN 201911142157A CN 110975828 B CN110975828 B CN 110975828B
- Authority
- CN
- China
- Prior art keywords
- layer
- biomass
- graphene
- adsorption
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention belongs to the technical field of adsorption materials for controlling environmental pollution, and particularly relates to an adsorption material for purifying sludge incineration flue gas and a preparation method thereof. This adsorption material has three layer construction, and three layer construction is for living beings graphite alkene layer, non-woven fabrics layer and mixed material layer respectively, living beings graphite alkene is used for adsorbing heavy metal substance, compares spherical adsorption material, has increased adsorption area and adsorption space, and can reach and adsorb produced SO that mud burns simultaneously2、NOxSubstances such as acid gases, heavy metals and the like can be obtained, and the biomass graphene, the non-woven fabric layer and the prepared mixed material layer can achieve the effect of synergistic treatment; the preparation method of the adsorbing material is easy to operate, the used raw materials are easily available and low in cost, the preparation process is simple, and the prepared adsorbing material is degradable.
Description
Technical Field
The invention belongs to the technical field of adsorption materials for controlling environmental pollution, and particularly relates to an adsorption material for purifying sludge incineration flue gas and a preparation method thereof.
Background
Sludge is an end product of domestic sewage treatment plants and industrial sewage treatment plants, and is usually dewatered, dried or incinerated in order to reduce the occupation of the sludge on places and reduce the pollution to the environment, sludge incineration is a disposal mode of the sludge, and the sludge is treatedThe sludge incineration furnace is composed of organic matters and inorganic matters and is a complex substance with high water content, the sludge incineration can convert the organic matters in the sludge into substances such as carbon dioxide, nitric oxide, water and the like, heat energy can be recovered, the resource utilization of the sludge is realized, the sludge incineration furnace can generate flue gas simultaneously, and the flue gas contains a large amount of particulate matters, heavy metals, NO and the likex、SO2And the acidic gases and dioxin substances cause secondary pollution to the environment, so that the substances generated by sludge incineration need to be purified to avoid secondary pollution.
Related statistics show that the volume of the flue gas generated by burning each ton of garbage and sludge is 4500-6000 cubic meters generally, and the volume of the flue gas comprises unreacted air and NOx、SO2Researches show that most of heavy metal components (Cd, Cr, Cu, Ni, Pb, Zn and the like) contained in the sludge incineration process are fixed in fly ash, and a small amount of Hg such as Hg is discharged into the atmosphere along with flue gas.
Most of the treatment of pollutants such as acid gas, heavy metal and the like in flue gas in the prior art adopts an integrated technology of combining equipment with an adsorbing material, although the synergistic removal effect can be achieved, the removal efficiency is not ideal enough, the technical requirement is high, the required equipment and material cost is also high, the adsorbing material is also purely adopted to carry out targeted treatment on carbon-containing, nitrogen-containing and sulfur-containing gas or heavy metal substances generated by sludge incineration, secondary pollution generated by incineration can be well treated, and most of the adsorbing materials are prepared from organic solvents, cannot be completely degraded after being used, and can cause environmental pollution again.
Because the adsorption material has the characteristics of excellent adsorption performance and chemical stability, acid and alkali resistance, high temperature resistance, lower cost and the like, relevant research and development personnel make changes tending to environmental protection and high efficiency on the adsorption material along with the increase of technical requirements, so as to achieve the effect of comprehensively treating the flue gas generated by sludge incineration, efficiently removing and simultaneously enabling the adsorption material to be recycled.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an adsorption material for purifying sludge incineration flue gas and a preparation method thereof, which can simultaneously remove SO generated during sludge incineration2、NOxAnd heavy metal species.
The technical content of the invention is as follows:
the utility model provides an adsorbing material for purifying mud burns flue gas, its has three layer construction, and three layer construction is for living beings graphite alkene layer, non-woven fabrics layer and mixed material layer respectively, living beings graphite alkene is used for adsorbing heavy metal substance, can effectively adsorb metals such as Cd, Cr, Cu, Ni, Pb and Zn that mud burns produced, and it can oxidize Hg and make it form Hg ion and adsorb, mixed material layer mainly used adsorbs the produced acid gas SO of mud burning2、NOxThe non-woven fabric layer can promote the exchange of absorption components on two sides of the non-woven fabric layer, so that the absorption is promoted;
the biomass graphene material of the biomass graphene layer comprises one of pericarp graphene, ligneous graphene and cellulose graphene;
the composite material layer comprises sodium alginate, waste biomass materials, calcium bentonite and chitosan;
the waste biomass material comprises straw, fruit peel or tea leaves;
the straws comprise corn straws, rice straws, wheat straws and reed straws, and the peels comprise corn husks and coconut shells.
A preparation method of an adsorption material for purifying sludge incineration flue gas comprises the following steps:
1) preparing a mixed material: dissolving sodium alginate in water to form a sodium alginate solution, dissolving chitosan in an inorganic acid solution, stirring to fully dissolve the chitosan, adding the sodium alginate solution, the waste biomass material and the calcium bentonite, and stirring to form a viscous solution;
2) preparing a biomass graphene material: dissolving biomass graphene in a DMF solution;
3) preparing an adsorbing material: respectively coating the mixed material and the biomass graphene material on two sides of the non-woven fabric, wherein the coating thickness is 0.1-5 mm, and drying to obtain the adsorbing material;
the waste biomass material in the step 1) is pretreated before use, and the pretreatment operation comprises the steps of cleaning, drying and grinding the waste biomass material to ensure that the particle size of the biomass material is less than 50 nm;
the calcium bentonite and the biomass graphene are ground to be smaller than 50nm before use.
The invention has the following beneficial effects:
compared with a spherical adsorbing material, the adsorbing material for purifying the flue gas generated by sludge incineration has the advantages that the plane three-layer structure is formed, the adsorbing area and the adsorbing space are increased, and the purpose of adsorbing SO generated by sludge incineration simultaneously can be achieved2、NOxSubstances such as acid gases, heavy metals and the like can be obtained, and the biomass graphene, the non-woven fabric layer and the prepared mixed material layer can achieve the effect of synergistic treatment;
the preparation method of the adsorbing material is easy to operate, the used raw materials are easily available and low in cost, the preparation process is simple, and the prepared adsorbing material is degradable; the three-layer structure can be disassembled by the adsorption material after use, the non-woven fabric can be reused, and the raw materials of the graphene material and the mixed material after degradation treatment can be reused.
Detailed Description
The present invention is described in further detail in the following detailed description with reference to specific embodiments, which are intended to be illustrative only and not to be limiting of the scope of the invention, as various equivalent modifications of the invention will become apparent to those skilled in the art after reading the present invention and are intended to be included within the scope of the appended claims.
All the raw materials and reagents of the invention are conventional market raw materials and reagents unless otherwise specified.
A preparation method of an adsorption material for purifying sludge incineration flue gas comprises the following steps:
1) preparing a mixed material: dissolving 10g of sodium alginate in 8g of water to form a sodium alginate solution, dissolving 10g of chitosan in 8g of an inorganic acid solution, stirring to fully dissolve the sodium alginate solution, 5g of waste biomass material and 2g of calcium bentonite, and stirring to form a viscous solution;
2) preparing a biomass graphene material: 8g of biomass graphene is dissolved in 5g of DMF solution;
3) preparing an adsorbing material: taking a piece of non-woven fabric material, cleaning and drying, respectively coating the mixed material and the biomass graphene material on two sides of the non-woven fabric, wherein the coating thickness is 0.1-5 mm, and drying until the moisture content of the adsorbing material is about 10%, so as to obtain the adsorbing material;
the waste biomass material in the step 1) is pretreated before use, and the pretreatment operation comprises the steps of cleaning, drying and grinding the waste biomass material to ensure that the particle size of the biomass material is less than 50 nm;
the calcium bentonite and the biomass graphene are ground to be smaller than 50nm before use.
10kg of sludge from a refuse dump is taken to be incinerated in an incineration plant, the adsorbing material prepared in the embodiment is used for adsorbing and treating wastes generated by incineration, the activated carbon purchased in the market is used for a comparison experiment, the treatment time is 24h, and the obtained results are shown in the following table:
TABLE 1 results of treating sludge incineration fumes with adsorbing materials
As can be seen from the table, the purification treatment of the sludge incineration flue gas by using the adsorption material prepared by the embodiment can achieve the effect of simultaneously removing the acid gas and the heavy metal, and the flue gas emission after the treatment reaches the national standard.
After the adsorption material prepared by the embodiment adsorbs the flue gas, the coating materials on two sides of the non-woven fabric can be disassembled for degradation treatment, so that the non-woven fabric can be recycled, and the non-woven fabric can also be reused.
Claims (5)
1. An adsorption material for purifying sludge incineration flue gas is characterized by having a three-layer structure, wherein the three-layer structure is a biomass graphene layer, a non-woven fabric layer and a mixed material layer respectively;
the biomass graphene material of the biomass graphene layer comprises one of pericarp graphene, ligneous graphene and cellulose graphene;
the preparation of the mixed material layer is as follows: dissolving sodium alginate in water to form a sodium alginate solution, dissolving chitosan in an inorganic acid solution, stirring and fully dissolving, adding the sodium alginate solution, the waste biomass material and calcium bentonite, and stirring to form a viscous solution;
the waste biomass material comprises straw, fruit peel or tea leaves.
2. The adsorbing material of claim 1, wherein the straw comprises corn stover, rice stover, wheat straw, and reed straw, and the pericarp comprises corn husks and coconut shells.
3. A preparation method of an adsorption material for purifying sludge incineration flue gas is characterized by comprising the following steps:
1) preparing a mixed material: dissolving sodium alginate in water to form a sodium alginate solution, dissolving chitosan in an inorganic acid solution, stirring and fully dissolving, adding the sodium alginate solution, the waste biomass material and calcium bentonite, and stirring to form a viscous solution;
2) preparing a biomass graphene material: dissolving biomass graphene in a DMF solution;
3) preparing an adsorbing material: and respectively coating the mixed material and the biomass graphene material on two sides of the non-woven fabric, wherein the coating thickness is 0.1-5 mm, and drying to obtain the adsorbing material.
4. The method for preparing the adsorbent according to claim 3, wherein the waste biomass material in the step 1) is pretreated before use, and the pretreatment comprises washing, drying and grinding the waste biomass material to make the particle size of the biomass material less than 50 nm.
5. The preparation method of the adsorption material according to claim 3, wherein the calcium bentonite and the biomass graphene are ground to have a particle size of less than 50nm before use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142157.7A CN110975828B (en) | 2019-11-20 | 2019-11-20 | Adsorbing material for purifying sludge incineration flue gas and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142157.7A CN110975828B (en) | 2019-11-20 | 2019-11-20 | Adsorbing material for purifying sludge incineration flue gas and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110975828A CN110975828A (en) | 2020-04-10 |
| CN110975828B true CN110975828B (en) | 2022-06-24 |
Family
ID=70085381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911142157.7A Active CN110975828B (en) | 2019-11-20 | 2019-11-20 | Adsorbing material for purifying sludge incineration flue gas and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110975828B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285485A (en) * | 2003-03-19 | 2004-10-14 | Kao Corp | Treating agent for textile product for deodorizing processing comprising granular adsorbent |
| CN102703155A (en) * | 2012-06-27 | 2012-10-03 | 环境保护部南京环境科学研究所 | Biomass fuel based on sludge, straw and raw coal, preparation method of biomass fuel and application of fuel slag |
| CN103949213A (en) * | 2014-04-21 | 2014-07-30 | 广西大学 | Activated carbon based adsorbent composition for recovering sulfur dioxide and nitrogen gas from furnace gas generated by pyrite calcination |
| CN104389234A (en) * | 2014-09-12 | 2015-03-04 | 河南中烟工业有限责任公司 | Cigarette filter tip added with chitosan-graphene oxide composite material |
| CN105603718A (en) * | 2016-02-05 | 2016-05-25 | 济南圣泉集团股份有限公司 | Composite fiber as well as preparation method and application thereof |
| CN106192376A (en) * | 2016-07-08 | 2016-12-07 | 张麟德 | Grapheme material coating and preparation method thereof and air filter and system |
| CN107376641A (en) * | 2017-09-22 | 2017-11-24 | 太仓弘杉环保科技有限公司 | A kind of environment-friendly filter element material for air purifier |
| CN110339733A (en) * | 2019-06-21 | 2019-10-18 | 广东工业大学 | A kind of graphene oxide/polyaniline composite film and its application |
-
2019
- 2019-11-20 CN CN201911142157.7A patent/CN110975828B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285485A (en) * | 2003-03-19 | 2004-10-14 | Kao Corp | Treating agent for textile product for deodorizing processing comprising granular adsorbent |
| CN102703155A (en) * | 2012-06-27 | 2012-10-03 | 环境保护部南京环境科学研究所 | Biomass fuel based on sludge, straw and raw coal, preparation method of biomass fuel and application of fuel slag |
| CN103949213A (en) * | 2014-04-21 | 2014-07-30 | 广西大学 | Activated carbon based adsorbent composition for recovering sulfur dioxide and nitrogen gas from furnace gas generated by pyrite calcination |
| CN104389234A (en) * | 2014-09-12 | 2015-03-04 | 河南中烟工业有限责任公司 | Cigarette filter tip added with chitosan-graphene oxide composite material |
| CN105603718A (en) * | 2016-02-05 | 2016-05-25 | 济南圣泉集团股份有限公司 | Composite fiber as well as preparation method and application thereof |
| CN106192376A (en) * | 2016-07-08 | 2016-12-07 | 张麟德 | Grapheme material coating and preparation method thereof and air filter and system |
| CN107376641A (en) * | 2017-09-22 | 2017-11-24 | 太仓弘杉环保科技有限公司 | A kind of environment-friendly filter element material for air purifier |
| CN110339733A (en) * | 2019-06-21 | 2019-10-18 | 广东工业大学 | A kind of graphene oxide/polyaniline composite film and its application |
Non-Patent Citations (2)
| Title |
|---|
| "Fabrication of High Gas Barrier Epoxy Nanocomposites: An Approach Based on Layered Silicate Functionalized by a Compatible and Reactive Modifier of Epoxy-Diamine Adduct";Ran Wei等;《Molecules》;20180503;第23卷(第5期);第1-17页 * |
| "活性炭和矿物材料对1,2,3,4-四氯苯的吸附脱除规律研究";邵旋;《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》;20180315(第03期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110975828A (en) | 2020-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chowdhury et al. | Removal of lead ions (Pb2+) from water and wastewater: a review on the low-cost adsorbents | |
| Krstić et al. | A review on adsorbents for treatment of water and wastewaters containing copper ions | |
| CN102530941A (en) | Sludge-based activated carbon and preparation method thereof | |
| CN102068890B (en) | Method and device for treating complex industrial organic waste gas | |
| Van Nguyen et al. | Valorization of agriculture waste biomass as biochar: As first-rate biosorbent for remediation of contaminated soil | |
| Yusuff et al. | ZnCl2-modified eucalyptus bark biochar as adsorbent: preparation, characterization and its application in adsorption of Cr (VI) from aqueous solutions | |
| CN101306356A (en) | Biomass adsorbent prepared by acid hydrolysis | |
| CN105536715A (en) | Method for preparation of adsorption material by using maple leaf | |
| CN107552027B (en) | Method for preparing carbon material from biomass waste and application of prepared carbon material | |
| CN103480330B (en) | Biomass-modified adsorbent for adsorbing coking wastewater, and preparation method and application thereof | |
| CN101234331A (en) | Preparation and using method for biological carbonaceous adsorption agent | |
| CN107867688A (en) | A kind of preparation method for the shaddock peel activated carbon for being used for purification of air and sewage disposal | |
| CN102500329A (en) | Preparation method of composite chitosan modified fly ash adsorbent | |
| CN103480336B (en) | A kind of modified biomass activates burnt demercuration adsorbent and preparation method thereof | |
| CN104511272A (en) | Preparation and application methods of adsorbent for removing cadmium in wastewater | |
| Niu et al. | Preparation and characterization of magnetic modified bone charcoal for removing Cu2+ ions from industrial and mining wastewater | |
| CN103252212A (en) | Biomass carbon-based flue gas demercuration adsorbent and preparation method thereof | |
| CN103084141A (en) | Modified 4a molecular sieve adsorbent and preparation method thereof | |
| CN105289529A (en) | Preparation method of MOF type efficient cheap adsorbent | |
| CN101700524B (en) | Fixing agent and method for safely disposing heavy metal polluted soil repairing plant | |
| CN104984743A (en) | Preparation method of waste-derived adsorbent for removing mercury, and product thereof | |
| CN110142026A (en) | The alkali lignin base charcoal efficient absorption material of cadmium, preparation method and applications in adsorbed water body | |
| CN101791537A (en) | Modified sludge activated carbon used for low-concentration flue gas desulfurization and denitration and preparation method thereof | |
| CN104096541A (en) | Preparation method for regenerative active adsorbent through solid wastes and plants | |
| CN107262031A (en) | A kind of zinc chloride activation modified sewage sludge stalk demercuration adsorbent and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220520 Address after: 510000 Room 2707 706 Kaichuang Avenue, Huangpu District, Guangzhou City, Guangdong Province Applicant after: Zike Equipment Co.,Ltd. Address before: 510000 Panyu District, Guangzhou, Guangdong, Panyu District, No. 100, West Ring Road, outside the city. Applicant before: GUANGDONG University OF TECHNOLOGY |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |