CN112717900A - 一种采用化学吸附纤维去除水中锰离子的方法 - Google Patents
一种采用化学吸附纤维去除水中锰离子的方法 Download PDFInfo
- Publication number
- CN112717900A CN112717900A CN202011604793.XA CN202011604793A CN112717900A CN 112717900 A CN112717900 A CN 112717900A CN 202011604793 A CN202011604793 A CN 202011604793A CN 112717900 A CN112717900 A CN 112717900A
- Authority
- CN
- China
- Prior art keywords
- fiber
- water
- fibers
- adsorption
- manganese ions
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 97
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910001437 manganese ion Inorganic materials 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 title claims abstract description 12
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 26
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 15
- 239000011572 manganese Substances 0.000 claims abstract description 15
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229940106681 chloroacetic acid Drugs 0.000 claims abstract description 13
- FUSNOPLQVRUIIM-UHFFFAOYSA-N 4-amino-2-(4,4-dimethyl-2-oxoimidazolidin-1-yl)-n-[3-(trifluoromethyl)phenyl]pyrimidine-5-carboxamide Chemical compound O=C1NC(C)(C)CN1C(N=C1N)=NC=C1C(=O)NC1=CC=CC(C(F)(F)F)=C1 FUSNOPLQVRUIIM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000012493 hydrazine sulfate Substances 0.000 claims abstract description 12
- 229910000377 hydrazine sulfate Inorganic materials 0.000 claims abstract description 12
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 10
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 10
- 229920001577 copolymer Polymers 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 239000003456 ion exchange resin Substances 0.000 abstract description 2
- 229920003303 ion-exchange polymer Polymers 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 229920002821 Modacrylic Polymers 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- VSWICNJIUPRZIK-UHFFFAOYSA-N 2-piperideine Chemical compound C1CNC=CC1 VSWICNJIUPRZIK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
Images
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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
-
- 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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
-
- 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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/76—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon oxides or carbonates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/332—Di- or polyamines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/338—Organic hydrazines; Hydrazinium compounds
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
本发明属于水处理技术领域,具体涉及一种采用化学吸附纤维去除水中锰离子的方法,包括以下步骤:步骤1:将纤维加入水中,再加入硫酸肼和二乙烯三胺,充分反应后过滤,得到改性聚丙烯腈吸附纤维A;步骤2:向改性聚丙烯腈吸附纤维A中加入氯乙酸和Na2CO3进行反应;反应完全后将纤维清洗至中性,干燥后得到改性聚丙烯腈吸附纤维B;步骤3:将改性聚丙烯腈吸附纤维B加入到含锰溶液中,搅拌进行反应。本发明中纤维制备简单、交换容量大,吸附速度快,锰除去率高,可以有效缩短处理周期,与离子交换树脂等吸附剂相比,具有突出的优势。
Description
技术领域
本发明属于水处理技术领域,具体涉及一种采用化学吸附纤维去除水中锰离子的方法。
背景技术
通常所说重金属,主要是指毒性较大的铅、镉、铬、汞以及具有重金属的特征的类金属砷(As)。矿山在开采、冶炼过程中都会造成严重的重金属污染,金属矿山的尾矿和矿渣都是潜在的重金属污染源,在酸雨或者被水、空气中的氧气氧化后,进入到土壤及水源中,同样会带来重金属污染。
化学吸附纤维的研究始于20世纪50年代,随着合成纤维工业的发展,以合成纤维为基体的各种化学吸附纤维材料相继被开发出来。
聚丙烯腈(简称PAN)纤维因其原料丰富,耐光性和耐辐射性优异,价格低廉,故广泛用作化学吸附纤维的基体材料。纤维上的氰基(-CN)很容易进行大分子反应,不仅可以引进多种碱性基团,例如叔胺基、咪唑基、四氢吡啶和季胺基等,制得阴化学吸附纤维,而且也可以转化成羧基(-COOH)制得阳化学吸附纤维。
发明内容
本发明的目的在于提供一种采用化学吸附纤维去除水中锰离子的方法,具有交换速率快,选择性强等优点,可以有效缩短处理周期。
本发明的技术方案如下:
一种采用化学吸附纤维去除水中锰离子的方法,包括以下步骤:
步骤1:将纤维加入水中,再加入硫酸肼和二乙烯三胺,充分反应后过滤,得到改性聚丙烯腈吸附纤维A;
步骤2:向改性聚丙烯腈吸附纤维A中加入氯乙酸和Na2CO3进行反应;反应完全后将纤维清洗至中性,干燥后得到改性聚丙烯腈吸附纤维B;
步骤3:将改性聚丙烯腈吸附纤维B加入到含锰溶液中,搅拌进行反应。
优选地,步骤1所述的纤维,为丙烯腈和甲基丙烯酸的共聚物,其中丙烯腈质量分数为90~93%,甲基丙烯酸质量分数为7~10%。
优选地,步骤1中,所述的纤维,其纤度为4.4~42.0tex,直径为15~50μm。
优选地,步骤1中,所述的纤维,其密度为1.09~1.15g/cm3。
优选地,步骤2中,加入氯乙酸和Na2CO3后,常温反应2~4h。
优选地,步骤2中,将纤维清洗至中性后,在40~50℃下真空干燥。
优选地,步骤3中,所述的含锰溶液浓度为5.0~50.0mg/L,pH=2~7。
优选地,步骤3中,改性聚丙烯腈吸附纤维B的加入量为含锰溶液质量的0.03~0.2%。
优选地,步骤3中,反应时间为1~2h。
优选地,步骤1中,纤维加入水中后,纤维的浓度为0.07~0.1g/ml;硫酸肼和二乙烯三胺的加入量之比为0.67:1,硫酸肼的加入量为纤维加入量的10%;步骤2中,按1.67:1的比例加入氯乙酸和Na2CO3,且氯乙酸与改性聚丙烯腈吸附纤维A的比例为0.5:1。
本发明的显著效果在于:
本发明中纤维制备简单、交换容量大,吸附速度快,锰除去率高,可以有效缩短处理周期,与离子交换树脂等吸附剂相比,具有突出的优势。
附图说明
图1为改性聚丙烯腈吸附纤维B吸附容量随吸附时间变化情况示意图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。
一种采用化学吸附纤维去除水中锰离子的方法,包括以下步骤:
步骤1:将纤维加入水中,纤维的浓度为0.07~0.1g/ml,再加入硫酸肼和二乙烯三胺,硫酸肼和二乙烯三胺的加入量之比为0.67:1,硫酸肼的加入量为纤维加入量的10%,充分反应后过滤,得到改性聚丙烯腈吸附纤维A;所述的纤维,为丙烯腈和甲基丙烯酸的共聚物,其中丙烯腈质量分数为90~93%,甲基丙烯酸质量分数为7~10%;其纤度为4.4~42.0tex,直径为15~50μm;其密度为1.09~1.15g/cm3;
步骤2:向改性聚丙烯腈吸附纤维A中按1.67:1的比例加入氯乙酸和Na2CO3进行反应,且氯乙酸与改性聚丙烯腈吸附纤维A的比例为0.5:1;常温反应2~4h;反应完全后将纤维清洗至中性,在40~50℃下真空干燥后,得到改性聚丙烯腈吸附纤维B;
步骤3:将改性聚丙烯腈吸附纤维B加入到含锰溶液中,搅拌进行反应;所述的含锰溶液浓度为5.0~50.0mg/L,pH=2~7;改性聚丙烯腈吸附纤维B的加入量为含锰溶液质量的0.03~0.2%;反应时间为1~2h。
如图1所示,采用本发明方法处理50mg/L的含锰溶液,15min基本达到吸附平衡,吸附60min时,吸附率达到95%以上,吸附容量达到1.02mmol/g。
实施例1
一种采用化学吸附纤维去除水中锰离子的方法,包括以下步骤:
步骤1:取10g直径35μm的纤维,纤维为丙烯腈和甲基丙烯酸的共聚物,丙烯腈质量分数为92.6%,甲基丙烯酸质量分数为7.4%,纤度为12.0tex,密度为1.12g/cm3;将纤维加入100ml水中,再加入1g硫酸肼和1.5g二乙烯三胺,充分反应,过滤得到改性聚丙烯腈吸附纤维A;
步骤2:加入5g氯乙酸和3g Na2CO3,保持pH=7.5,常温反应2h后,将纤维清洗至中性,在50℃下真空干燥,得到改性聚丙烯腈吸附纤维B;
步骤3:取50mg/L的含锰溶液200mL,溶液pH=6.4,加入0.172g改性聚丙烯腈吸附纤维B,机械搅拌反应1h。
测定溶液中锰离子浓度降低至1.82mg/L,去除率达到96.4%,吸附纤维吸附容量达到1.02mmol/g。
实施例2
一种采用化学吸附纤维去除水中锰离子的方法,包括以下步骤:
步骤1:取8g直径25μm的纤维,纤维为丙烯腈和甲基丙烯酸的共聚物,丙烯腈质量分数为95.2%,甲基丙烯酸质量分数为4.8%,纤度为24.0tex,密度为1.07g/cm3;将纤维加入120ml水中,加入0.8g硫酸肼和1.2g二乙烯三胺,充分反应,过滤得到改性聚丙烯腈吸附纤维A;
步骤2:加入4g氯乙酸和2.4gNa2CO3,保持pH=8.2,常温反应3h后,将纤维清洗至中性,在50℃下真空干燥,得到改性聚丙烯腈吸附纤维B;
步骤3:取26.4mg/L的含锰溶液250mL,溶液pH=5.5,加0.121g改性聚丙烯腈吸附纤维B,机械搅拌反应1h。
测定溶液中锰离子浓度降低至1.53mg/L,去除率达到94.2%,吸附纤维吸附容量达到0.93mmol/g。
Claims (10)
1.一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:包括以下步骤:
步骤1:将纤维加入水中,再加入硫酸肼和二乙烯三胺,充分反应后过滤,得到改性聚丙烯腈吸附纤维A;
步骤2:向改性聚丙烯腈吸附纤维A中加入氯乙酸和Na2CO3进行反应;反应完全后将纤维清洗至中性,干燥后得到改性聚丙烯腈吸附纤维B;
步骤3:将改性聚丙烯腈吸附纤维B加入到含锰溶液中,搅拌进行反应。
2.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤1所述的纤维,为丙烯腈和甲基丙烯酸的共聚物,其中丙烯腈质量分数为90~93%,甲基丙烯酸质量分数为7~10%。
3.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤1中,所述的纤维,其纤度为4.4~42.0tex,直径为15~50μm。
4.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤1中,所述的纤维,其密度为1.09~1.15g/cm3。
5.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤2中,加入氯乙酸和Na2CO3后,常温反应2~4h。
6.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤2中,将纤维清洗至中性后,在40~50℃下真空干燥。
7.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤3中,所述的含锰溶液浓度为5.0~50.0mg/L,pH=2~7。
8.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤3中,改性聚丙烯腈吸附纤维B的加入量为含锰溶液质量的0.03~0.2%。
9.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤3中,反应时间为1~2h。
10.如权利要求1所述的一种采用化学吸附纤维去除水中锰离子的方法,其特征在于:步骤1中,纤维加入水中后,纤维的浓度为0.07~0.1g/ml;硫酸肼和二乙烯三胺的加入量之比为0.67:1,硫酸肼的加入量为纤维加入量的10%;步骤2中,按1.67:1的比例加入氯乙酸和Na2CO3,且氯乙酸与改性聚丙烯腈吸附纤维A的比例为0.5:1。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011604793.XA CN112717900A (zh) | 2020-12-30 | 2020-12-30 | 一种采用化学吸附纤维去除水中锰离子的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011604793.XA CN112717900A (zh) | 2020-12-30 | 2020-12-30 | 一种采用化学吸附纤维去除水中锰离子的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112717900A true CN112717900A (zh) | 2021-04-30 |
Family
ID=75610655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011604793.XA Pending CN112717900A (zh) | 2020-12-30 | 2020-12-30 | 一种采用化学吸附纤维去除水中锰离子的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112717900A (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1563554A (zh) * | 2004-03-26 | 2005-01-12 | 钢铁研究总院 | 一种具有还原功能螯合纤维的制备方法 |
CN104988724A (zh) * | 2015-06-10 | 2015-10-21 | 四川大学 | 聚乙烯醇增强改性无卤阻燃聚丙烯腈复合纤维及其制备方法 |
CN110732160A (zh) * | 2019-11-26 | 2020-01-31 | 中国科学院过程工程研究所 | 一种动态吸附溶液中重金属的方法及其用途 |
CN111246939A (zh) * | 2017-08-23 | 2020-06-05 | 伊莱克福有限公司 | 纤维性吸附剂 |
-
2020
- 2020-12-30 CN CN202011604793.XA patent/CN112717900A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1563554A (zh) * | 2004-03-26 | 2005-01-12 | 钢铁研究总院 | 一种具有还原功能螯合纤维的制备方法 |
CN104988724A (zh) * | 2015-06-10 | 2015-10-21 | 四川大学 | 聚乙烯醇增强改性无卤阻燃聚丙烯腈复合纤维及其制备方法 |
CN111246939A (zh) * | 2017-08-23 | 2020-06-05 | 伊莱克福有限公司 | 纤维性吸附剂 |
CN110732160A (zh) * | 2019-11-26 | 2020-01-31 | 中国科学院过程工程研究所 | 一种动态吸附溶液中重金属的方法及其用途 |
Non-Patent Citations (2)
Title |
---|
LIANHAI ZHANG ET AL.: ""Effective Cd2+ chelating fiber based on polyacrylonitrile"", 《REACTIVE & FUNCTIONAL POLYMERS》 * |
周绍箕: ""化学吸附纤维制备、性能及应用研究进展"", 《离子交换与吸附》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102417214B (zh) | 利用石墨烯片与趋磁细菌三维复合物吸附重金属的方法 | |
CN105983391B (zh) | 含有机硫吸附基团的磁性固体有机硫吸附剂颗粒材料及其制备方法 | |
CN103861866A (zh) | 一种改性纳米碳对城市生活堆肥重金属的固定富集方法 | |
CN107008235A (zh) | 超支化聚合物改性磁性秸秆吸附材料及其制备方法 | |
CN111729652B (zh) | 一种高吸附选择性磷酸盐吸附剂的制备方法 | |
CN111871384B (zh) | 一种改性碳纳米管及其制备方法和应用 | |
CN111570494B (zh) | 一种重金属污染土壤修复方法 | |
CN114377659A (zh) | 一种纳米复合除铊剂的制备方法 | |
CN108262026A (zh) | 一种改性二氧化硅纳米吸附剂及其制备方法和应用 | |
CN114247426B (zh) | 生物炭负载天然含铁矿物磁性吸附剂及其制备方法和应用 | |
CN112387249A (zh) | 一种多孔生物炭/铁酸锌复合材料及其制备方法和应用 | |
JP3822329B2 (ja) | 金属キレート形成能を有する繊維およびその製法、並びに該繊維を用いた金属イオン捕捉法 | |
CN113600146B (zh) | 一种铁、锰复合膜吸附剂及其制备方法和其吸附水体与土壤中砷、镉的应用 | |
CN106693911A (zh) | 功能化二氧化硅吸附剂及其在富集氯化废水中银离子的应用 | |
CN104289200A (zh) | 一种磁性hacc/氧化多壁碳纳米管吸附剂的制备方法及应用 | |
CN112717900A (zh) | 一种采用化学吸附纤维去除水中锰离子的方法 | |
CN111514861B (zh) | 一种三齿配体重金属离子印迹材料的制备方法及应用 | |
CN111569823A (zh) | 一种铁锰氧化物/介孔氧化硅吸附剂吸附除砷的方法 | |
CN112007694A (zh) | 一种包埋型催化剂及其制备方法和在废水脱氮中的应用 | |
CN109317089B (zh) | 一种磁性吸附材料及其制备和用于处理含铊废水的方法 | |
CN115178228B (zh) | 一种Fe-Mn@PDA@ASEP复合材料及其制备方法和用途 | |
CN113952940B (zh) | 一种选择性去除Sb离子的表面印迹微球吸附材料的制备方法 | |
CN109277090A (zh) | 一种同时快速吸附铬、镉和铅重金属离子的方法 | |
CN113058551A (zh) | 重金属废水吸附剂 | |
CN112403445B (zh) | 一种改性铁锰双金属材料及其制备方法与应用 |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |