CN105502561A - 2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 - Google Patents
2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 Download PDFInfo
- Publication number
- CN105502561A CN105502561A CN201510940594.9A CN201510940594A CN105502561A CN 105502561 A CN105502561 A CN 105502561A CN 201510940594 A CN201510940594 A CN 201510940594A CN 105502561 A CN105502561 A CN 105502561A
- Authority
- CN
- China
- Prior art keywords
- resin
- aminomethyl
- electroplating wastewater
- hexavalent chromium
- application
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- WOXFMYVTSLAQMO-UHFFFAOYSA-N 2-Pyridinemethanamine Chemical compound NCC1=CC=CC=N1 WOXFMYVTSLAQMO-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000009713 electroplating Methods 0.000 title claims abstract description 25
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000001784 detoxification Methods 0.000 title claims abstract description 12
- 229910001430 chromium ion Inorganic materials 0.000 title abstract description 6
- 238000000926 separation method Methods 0.000 title abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 9
- 238000007306 functionalization reaction Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyoxyethylene Polymers 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 238000007259 addition reaction Methods 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000011651 chromium Substances 0.000 abstract description 39
- 238000001179 sorption measurement Methods 0.000 abstract description 23
- 229910052804 chromium Inorganic materials 0.000 abstract description 19
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract 2
- 230000002588 toxic effect Effects 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 1
- 238000005191 phase separation Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 231100000053 low toxicity Toxicity 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 230000007096 poisonous effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- KOMIMHZRQFFCOR-UHFFFAOYSA-N [Ni].[Cu].[Zn] Chemical compound [Ni].[Cu].[Zn] KOMIMHZRQFFCOR-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- B01J20/264—Synthetic macromolecular compounds derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
-
- 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
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
本发明公开了一种2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用。本发明的应用方法具体步骤包括：将电镀废水调节至酸性；在上述电镀废水中，加入2-氨甲基吡啶功能化的树脂，对剧毒六价铬离子进行吸附；吸附完毕后，采用淋洗液淋洗吸附在树脂上的铬，同时实现剧毒六价铬离子的分离浓缩和去毒化。本发明的应用方法简单，操作易行，能解决相分离困难及溶剂损失的问题。
Description
技术领域
本发明属于有毒六价铬元素的分离回收技术领域，特别涉及利用2-氨甲基吡啶功能化的树脂对电镀废水中六价铬离子进行分离和去毒化的应用。
背景技术
铬广泛地应用与不同的工业领域如冶金，皮革和电镀行业。金属铬对人类健康和生态环境有很大的伤害。众所周知，六价铬对人体器官有高活性和高毒性，具有致癌性和致畸性。世界卫生组织(WHO)规定饮用水中六价铬的浓度不能高于0.05ppm。因此，从工业废水尤其是电镀废水中分离去除六价铬是具有重要意义的。
目前，处理含铬电镀废水最常用的方法是在酸性条件下(pH～2)，将有毒可溶的六价铬还原为低毒的三价铬，然后调节溶液至碱性(pH9～10)，使三价铬转化为不溶的沉淀。然而这种方法只适合高浓缩的工业废水，且还容易产生大量的化学泥浆。上述方法处理后的含铬溶液仍然不能满足WHO的排放要求，因此膜过滤、电解法和吸附法被开发用来处理低浓度含铬电镀废水。其中吸附法被认为是最简单易行，高效经济的方法，尤其是对于低浓度的六价铬展现出有利的优势。目前，已报道的吸附六价铬的树脂多为阴离子交换树脂，一方面对六价铬没有选择性，另一方面不能同时直接实现吸附六价铬且将六价铬转化为低毒的三价铬从而实现去毒化。
发明内容
为了克服现有技术的不足，本发明的目的在于提供一种2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用。其应用方法简单，选择性好，操作易行。
本发明的发明目的主要是通过以下技术方案实现的。
本发明提供一种2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用。
上述2-氨甲基吡啶功能化的树脂由高分子基材表面改性后得到；其中，所述高分子基材选自结晶度为30％以上的纤维素及其衍生物、聚乙二醇、聚丙烯或聚酰胺中任一种；表面改性方法为辐射接枝或化学接枝法，通过先将环氧基团接枝到高分子基材表面，然后再环氧开环反应导入2-氨甲基吡啶单体进行改性；其结构用下式表示：
上述2-氨甲基吡啶功能化的树脂为球状材料，平均粒径在300～400微米之间。
本发明采用的2-氨甲基吡啶功能化的树脂的制备方法可参考中国专利(公开号CN104689802A)。本发明合成的2-氨甲基吡啶功能化的树脂与目前的商业树脂不同，功能团主要集中在树脂球的表面，功能单体的密度大，因此具有更大的吸附容量。另外，本发明的树脂引入了氨基和羟基基团，一方面在酸性条件下，发生质子化，变成正离子中心，可以对六价铬阳离子物种进行静电吸附，另一方面这些基团具有还原性，可以还原强氧化性的六价铬成为三价铬，从而实现去毒化。
本发明应用2-氨甲基吡啶功能化的树脂进行分离和去毒化电镀废水中六价铬离子的方法如下：
1)将电镀废水用酸调节pH至酸性；
2)吸附工程：在酸化后电镀废水中，加入2-氨甲基吡啶功能化的树脂，对六价铬离子进行吸附；
3)淋洗工程：吸附完毕后，采用淋洗液淋洗吸附在树脂上的六价铬，实现剧毒六价铬离子的回收富集。
上述步骤1)中，所述酸为0.01mol/L-5mol/L的盐酸。
上述步骤3)中，所述的淋洗液为浓度为1mol/L-3mol/L的氢氧化钠溶液。
与现有技术相比，本发明的有益效果如下：
1)本发明不仅可以从电镀废水中高选择性的分离六价铬，还能在吸附的同时将有毒的六价铬转化为低毒的三价铬。
2)本发明选择常见易得、成本低廉的微球状高分子材料作为基材，可以更方便地代替现有商业树脂在吸附柱/塔中使用，具有很大的工业化应用前景。
3)与商业化的铬吸附材料不同，本发明树脂实现快速吸附脱附铬离子，功能团富集在树脂表面，且铬吸附树脂材料粒径可达300-400微米，满足了工业中吸附住充填使用的需求。
4)本发明的铬吸附树脂材料具有高选择性吸附的特点，且该铬吸附树脂完全由C，H，O，N组成，燃烧值高，高温灼烧时对环境无污染。因此，具有良好的经济效益和环保效益。
附图说明
图1为2-氨甲基吡啶功能化的树脂对Cr(VI)的静态吸附动力学曲线图。
图2为从模拟电镀废水中选择性吸附六价铬的动态特性吸附曲线。
图3为吸附后树脂的洗脱曲线。
具体实施方式
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
下述实施例中所述实验方法，如无特殊说明，均为常规方法；所述试剂和材料，如无特殊说明，均可从商业途径获得。实施例中的2-氨甲基吡啶功能化的树脂材料的制备方法参考中国专利(公开号CN104689802A)。
实施例1静态吸附测试
称取2-氨甲基吡啶功能化的树脂材料0.05g，在室温下投入50mL含有Cr(VI)的水溶液中进行静态Batch吸附试验。吸附用Cr(VI)溶液由K2CrO7调制而成，初始浓度为150mg/L和100mg/L。上述吸附试验在室温下搅拌，吸附一定时间后，取其上清液，用ICP检测溶液中Cr(VI)残留浓度从而计算树脂对Cr(VI)的吸附量。
2-氨甲基吡啶功能化的树脂的Cr(VI)吸附动力学曲线如图1所示。我们可以看出到2-氨甲基吡啶功能化的树脂对Cr(VI)吸附树脂吸附速度非常快，当Cr(VI)初始浓度为100ppm,4h达到了吸附平衡；当Cr(VI)初始浓度为150mg/L，15h达到了吸附平衡。且动力学符合准二级吸附动力学模型，为化学吸附。
且2-氨甲基吡啶功能化的树脂对Cr(VI)的饱和吸附容量可达为207mg/g.
实施例2模拟电镀废水中选择性吸附六价铬的动态特性吸附测试
将2-氨甲基吡啶功能化的树脂在湿润状态下充填到吸附柱中，通入事先调制好的等浓度的铬Cr(VI)，铜Cu(II)，镍Ni(II)和锌Zn(II)水溶液来评价它的动态吸附特性。由于六价铬在电镀过程只是用于电镀层的最后一步钝化，铬含量远远低于镀层金属的含量。因此，我们配制模拟电镀废水时，控制铜镍锌的浓度为Cr(VI)的十倍。
动态吸附评价条件：吸附柱体积10mL，树脂量10mL(6.2g),Zn(II)，Cu(II)，Ni(II)的水溶液浓度均为4mmol/L，Cr(VI)浓度均为0.4mmol/L，pH＝1，流量5mL/min(SV30)。
按照上述条件进行了动态吸附评价实验，通过在所定时间间隔对出口液体取样分析，可以得到上述吸附材料的吸附行为曲线。结果表明，本发明制得的吸附树脂对Cr(VI)都有很好的选择性，从吸附实验一开始，Ni(II)和Zn(II)就开始完全漏出，说明该吸附树脂对Ni(II)和Zn(II)完全不吸附，但对Cu(II)有少许的吸附。可以认为本发明的吸附树脂能够很好的应用于铜镍锌电镀废水中去除Cr(VI)。
其中利用2-氨甲基吡啶功能化的树脂的动态吸附测试图如图2所示。2-氨甲基吡啶功能化的树脂对Cr(VI)都有很好的选择性，Ni(II)和Zn(II)就开始完全漏出，说明该吸附树脂对Ni(II)和Zn(II)完全不吸附，但对Cu(II)有少许的吸附。对Cr(VI)可以处理其体积的1000倍左右的Cr(VI)溶液不会漏出，Cr(VI)吸附到树脂后，一部分被树脂还原为低毒的三价铬漏出。这意味着2-氨甲基吡啶功能化的树脂可以对Cr(VI)实现同时吸附和还原去毒化。
实施例3吸附后树脂的洗脱实验
实施例2中吸附完成后，先用蒸馏水冲洗5min，除去粘附在树脂上的离子，再调节流速为50mL/h(SV＝5)后，采用1mol/LNaOH溶液对吸附柱进行淋洗，对出口液体连续取样分析，得到图3的洗脱曲线。从图3可以看出，铬可以被有效地分离浓缩，且1h内几乎可以完全将吸附的铬完全洗脱。因此，该发明可以有效的从常见的铜镍锌等电镀废水中有效分离有毒铬离子。
虽然本发明已将较佳实施例揭示如上，然其并非用以限定本发明的内容，任何熟悉此技艺者，在不脱离本发明的主要精神和内容范围内，当可作各种更动与润饰，因此发明的保护范围应以申请专利的实际权利要求范围为准。
Claims (6)
1.一种2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用。
2.根据权利要求1所述的应用，其特征在于，所述2-氨甲基吡啶功能化的树脂由高分子基材表面改性后得到；其中，所述高分子基材选自结晶度为30％以上的纤维素及其衍生物、聚乙二醇、聚丙烯或聚酰胺中任一种；表面改性方法为辐射接枝或化学接枝法，通过先将环氧基团接枝到高分子基材表面，然后通过环氧开环反应导入2-氨甲基吡啶单体进行改性；其结构用下式表示：
3.根据权利要求1所述的应用，其特征在于，所述2-氨甲基吡啶功能化的树脂为球状材料，平均粒径在300～400微米之间。
4.根据权利要求1所述的应用，其特征在于，应用方法如下：
1)将电镀废水用酸调节pH至酸性；
2)吸附工程：在酸化后电镀废水中，加入2-氨甲基吡啶功能化的树脂，对六价铬离子进行吸附；
3)淋洗工程：吸附完毕后，采用淋洗液淋洗吸附在树脂上的六价铬，实现剧毒六价铬离子的回收富集。
5.根据权利要求4所述的应用，其特征在于：步骤1)中，所述酸为0.01mol/L-5mol/L的盐酸。
6.根据权利要求4所述的应用，其特征在于：步骤3)中，所述的淋洗液为浓度为1mol/L-3mol/L的氢氧化钠溶液。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940594.9A CN105502561B (zh) | 2015-12-15 | 2015-12-15 | 2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940594.9A CN105502561B (zh) | 2015-12-15 | 2015-12-15 | 2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105502561A true CN105502561A (zh) | 2016-04-20 |
| CN105502561B CN105502561B (zh) | 2019-05-17 |
Family
ID=55710947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940594.9A Expired - Fee Related CN105502561B (zh) | 2015-12-15 | 2015-12-15 | 2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105502561B (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452308A (zh) * | 2020-12-09 | 2021-03-09 | 昆明理工大学 | 一种含吡啶酰胺的吸附聚合物的合成方法及应用 |
| CN113278815A (zh) * | 2021-05-26 | 2021-08-20 | 华中科技大学 | 一种利用吸附树脂回收金的方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172676A (zh) * | 2007-10-18 | 2008-05-07 | 南京工业大学 | 一种用离子交换树脂处理含六价铬废水的方法 |
| CN103693781A (zh) * | 2013-12-26 | 2014-04-02 | 山东华升化工科技有限公司 | 一种复合絮凝–螯合法处理镀铬废水的方法 |
| CN104689802A (zh) * | 2015-02-11 | 2015-06-10 | 上海交通大学 | 一种高选择性金吸附树脂材料、制备方法及其应用 |
-
2015
- 2015-12-15 CN CN201510940594.9A patent/CN105502561B/zh not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172676A (zh) * | 2007-10-18 | 2008-05-07 | 南京工业大学 | 一种用离子交换树脂处理含六价铬废水的方法 |
| CN103693781A (zh) * | 2013-12-26 | 2014-04-02 | 山东华升化工科技有限公司 | 一种复合絮凝–螯合法处理镀铬废水的方法 |
| CN104689802A (zh) * | 2015-02-11 | 2015-06-10 | 上海交通大学 | 一种高选择性金吸附树脂材料、制备方法及其应用 |
Non-Patent Citations (1)
| Title |
|---|
| 熊春华等: "4-氨基吡啶树脂吸附铬(VI)的研究", 《有色金属》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452308A (zh) * | 2020-12-09 | 2021-03-09 | 昆明理工大学 | 一种含吡啶酰胺的吸附聚合物的合成方法及应用 |
| CN112452308B (zh) * | 2020-12-09 | 2022-10-25 | 昆明理工大学 | 一种含吡啶酰胺的吸附聚合物的合成方法及应用 |
| CN113278815A (zh) * | 2021-05-26 | 2021-08-20 | 华中科技大学 | 一种利用吸附树脂回收金的方法 |
| CN113278815B (zh) * | 2021-05-26 | 2022-02-18 | 华中科技大学 | 一种利用吸附树脂回收金的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105502561B (zh) | 2019-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Santos et al. | Selenium contaminated waters: An overview of analytical methods, treatment options and recent advances in sorption methods | |
| Owlad et al. | Removal of hexavalent chromium-contaminated water and wastewater: a review | |
| Aksu et al. | Chromium (VI) biosorption by dried Rhizopus arrhizus: effect of salt (NaCl) concentration on equilibrium and kinetic parameters | |
| Li et al. | Facile modification of activated carbon with highly dispersed nano-sized α-Fe2O3 for enhanced removal of hexavalent chromium from aqueous solutions | |
| Hu et al. | Removal of Cr (VI) by magnetite | |
| Hossain et al. | Optimization of parameters for Cr (VI) adsorption on used black tea leaves | |
| Kushwaha et al. | A spectroscopic study for understanding the speciation of Cr on palm shell based adsorbents and their application for the remediation of chrome plating effluents | |
| Dave et al. | Adsorption of Cr (VI) from aqueous solutions on tea waste and coconut husk | |
| Satpathy et al. | Treatment of cadmium‐plating and chromium‐plating wastes by iron oxide‐coated sand | |
| Chen et al. | Removal of ammonia from aqueous solutions by ligand exchange onto a Cu (II)-loaded chelating resin: kinetics, equilibrium and thermodynamics | |
| Amiri et al. | Removal of heavy metals Cr (VI), Cd (II) and Ni (II) from aqueous solution by bioabsorbtion of Elaeagnus angustifolia | |
| Odeh et al. | Hexavalent chromium removal and reduction to Cr (III) by polystyrene tris (2-aminoethyl) amine | |
| Lakherwal et al. | Studies on adsorption of nickel by activated carbon in a liquid fluidised bed reactor | |
| CN105502561A (zh) | 2-氨甲基吡啶功能化的树脂在分离和去毒化电镀废水中六价铬离子方面的应用 | |
| Yari et al. | Removal of heavy metals from aqueous solutions by natural adsorbents (A review) | |
| CN110404516A (zh) | 一种金属离子吸附水凝胶及其制备方法和应用 | |
| Kushwaha et al. | Spectroscopic characterization for remediation of copper, cadmium and mercury using modified palm shell powder | |
| Kulkarni Sunil et al. | Adsorption of Chromium from Wastewater on Different Adsorbents | |
| Rangabhashiyam et al. | Hydrous cerium oxide nanoparticles impregnated Enteromorpha sp. for the removal of hexavalent chromium from aqueous solutions | |
| Viet et al. | Porous adsorbent derived from acid activation of food waste biochar: A sustainable approach for novel removal chlorophenol in wastewater | |
| Tiwari et al. | Immobilized small sized manganese dioxide sand in the remediation of arsenic contaminated water | |
| Gandhimathi et al. | Biosorption of Cu (II) and Zn (II) ions from aqueous solution by water hyacinth (Eichhornia crassipes) | |
| Zhou et al. | A magnetic chitosan for efficient adsorption of vanadium (V) from aqueous solution | |
| Rangsivek et al. | Natural organic matter (NOM) in roof runoff and its impact on the Fe0 treatment system of dissolved metals | |
| CN105435747B (zh) | 利用Fenton法修饰壳聚糖的方法、吸附剂及其应用 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 |