重金属絮凝剂DTMPAM去除Cr (Ⅵ)的性能与机理

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Abstract The performance of dithiocarboxyl hydroxymethy-polyacrylamide (DTMPAM) in the treatment of Cr(VI)-containing wastewater was investigated with the influences of some parameters, such as DTMPAM dosage, pH value, initial concentration of Cr(VI), and coexisting turbidity, inorganic and organic substances. The results showed that DTMPAM had a good removal efficiency on Cr(VI) in water samples with different initial concentrations of Cr(VI) under acidic conditions, and the removal rate of Cr(VI) increased with the decrease of initial pH in the system. At pH value 3.0, the highest removal rates of Cr(VI) in water samples reached 94.78%, 96.52%, 96.53% and 97.49% at the initial Cr(VI) concentrations of 5, 15, 25 and 50mg/L, respectively. The coexisting turbidity had an inhibitory effect on the removal of Cr(VI) by DTMPAM. At the low DTMPAM dosage, the coexisting inorganic cations (K⁺, Na⁺, Ca²⁺ and Mg²⁺), the coexisting inorganic anions (SO₄^2-, NO₃^- and Cl^-), as well as the coexisting organic substances (sodium citrate, sodium acetate, trichloroacetic acid and aminoacetic acid) had a certain inhibitory effect on the removal of Cr(VI) by DTMPAM, while at the high DTMPAM dosage, the presence of these coexisting substances exhibited a little promotion for the removal of Cr(VI). The presence of inorganic cations, such as Fe³⁺, Ni²⁺ and Ba²⁺, had a significant inhibitory effect on the removal of Cr(VI) by DTMPAM, and Ba²⁺ had the most significant inhibitory effect among these ions. Infrared spectroscopy and energy spectrum analysis showed that the dithiocarboxyl groups on the molecular chain of DTMPAM could reduce Cr(VI) to Cr(III) in the water samples, and then Cr(III) could further chelated with the dithiocarboxyl groups and amine groups on the molecular chain of DTMPAM to form flocs.

Key words： macromolecule flocculant dithiocarboxyl groups wastewater containing chromium oxidation and reduction chelation precipitation

Received: 24 May 2022

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X703

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	ZHOU Ya-qi
	WANG Gang
	ZHANG Hang
	MA Yu

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ZHOU Ya-qi,WANG Gang,ZHANG Hang等. Removal performance and mechanism of dithiocarboxyl hydroxymethy-polyacrylamide for Cr(VI) in aqueous solution[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(12): 5658-5667.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I12/5658

[1]	严亚萍,王刚,王露露,等.二硫代羧基化羟甲基聚丙烯酰胺与Cu2+的螯合稳定性[J]. 中国环境科学, 2021,41(7):3266-3274. Yan Y P, Wang G, Wang L L, et al. Chelating stability of dithiocarboxylated hydroxymethyl polyacrylamide and Cu2+[J]. China Environmental Science, 2021,41(7):3266-3274.
[2]	Salari M, Dehghani M H, Azari A, et al. High performance removal of phenol from aqueous solution by magnetic chitosan based on response surface methodology and genetic algorithm[J]. Journal of Molecular Liquids, 2019,285:146-157.
[3]	倪萍,徐敏,王刚,等.重金属螯合剂O-黄原酸化-N-苄基壳聚糖去除水中锰的性能研究[J]. 给水排水, 2021,57(S1):22-28. Ni P, Xu M, Wang G, et al. Study on the performance of heavy metal chelator O-xanthogenated-N-benzyl chitosan to remove manganese in water[J]. Water & Wastewater Engineering, 2021,57(S1):22-28.
[4]	Yang L, Wang J B, Yang Y S, et al. Phytoremediation of heavy metal pollution:Hotspots and future prospects[J]. Ecotoxicology and environmental afety, 2022,234:113403.
[5]	何宝菊.二硫代羧基化聚丙烯酰胺衍生物的制备及其除铜性能研究[D]. 兰州:兰州交通大学, 2018:1-2. He B J. Preparation of dithiocarboxylated polyacrylamide derivatives and their copper removal properties[D]. Lanzhou:Lanzhou Jiaotong University, 2018:1-2.
[6]	蔡节奎,李建荣.有机无机杂化层状硫属化合物对水中六价铬的吸附[J]. 环境化学, 2022,41(3):1060-1068. Cai J K, Li J R. Adsorption of hexavalent chromium in water by organic-inorganic hybridized layered sulfur compounds[J]. Environmental Chemistry, 2022,41(3):1060-1068.
[7]	Yang S, Li Q, Chen L, et al. Synergistic removal and reduction of U(Ⅵ) and Cr(Ⅵ) by Fe3S4 micro-crystal[J]. Chemical Engineering Journal, 2020,385:123909.
[8]	胡啸龙,孟昭福,王新欣,等.双子型复配增强两性膨润土吸附Cr(Ⅵ)的效应[J]. 中国环境科学, 2020,40(5):2087-2094. Hu X L, Meng Z F, Wang X X, et al. Enhancing effect of gemini surfactant complex modification on Cr(Ⅵ) adsorption by amphoteric bentonite[J]. China Environmental Science, 2020,40(5):2087-2094.
[9]	Kaźmierczak B, Molenda J, Swat M. The adsorption of chromium(III) ions from water solutions on biocarbons obtained from plant waste[J]. Environmental Technology & Innovation, 2021,23.
[10]	吴文炳,林雅彬,陈建华.表面活性剂改性4A分子筛对Cr(Ⅵ)的吸附行为[J]. 环境工程学报, 2014,8(9):3620-3624. Wu W B, Lin Y B, Chen J H. Adsorption behavior of Cr(Ⅵ)on surfactant-modified 4A molecular sieve[J]. Chinese Journal of Environmental Engineering, 2014,8(9):3620-3624.
[11]	Cavaco S A, Fernandes S, Quina M M, et al. Removal ofchromium from electroplating industry effluents by ion exchangeresins[J]. Journal of Hazardous Materials, 2007,144(3):634-638.
[12]	吴秋原,刘福强,侯鹏,等.不同类型阴离子交换树脂对Cr(Ⅵ)的吸附性能研究[J]. 离子交换与吸附, 2012.28(6):532-540. Wu Q Y, Liu F Q, Hou P et al. Study on the adsorption properties of different types of anion exchange resins for Cr(VI)[J]. Ion Exchange and Adsorption, 2012.28(6):532-540.
[13]	陈国英.电解法处理电镀镍废水及阴极极化曲线研究[D]. 广州:华南理工大学, 2017. Chen G Y. Study on electrolytic treatment of nickel electroplating wastewater and cathodic polarization curve[D]. Guang Zhou:South China University of Technology, 2017.
[14]	李妍,唐晓琳,赵红梅.电解法处理电镀废水的研究进展[J]. 中国资源综合利用, 2017,35(9):79-81. Li Y, Tang X L, Zhao H M. Research progress of electrolytic treatment of electroplating wastewater[J]. China Comprehensive Utilization of Resources, 2017,35(9):79-81.
[15]	Gheju M, Balcu I. Removal of chromium from Cr(Ⅵ) polluted wastewaters by reduction with scrap iron and subsequent precipitation of resulted cations[J]. Journal of Hazardous Materials, 2011,196:131-138.
[16]	Prasad P V V V, Das C, Golder A K. Reduction of Cr(Ⅵ) to Cr(Ⅲ) and removal of total chromium from wastewater usingscrap iron in the form of zerovalent iron (ZVI):Batch and column studies[J]. The Canadian Journal of Chemical Engineering, 2011,89(6):1575-1582.
[17]	李梦琦,杨春风,赵凯,等.电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水[J]. 环境工程学报, 2018,12(1):79-85. Li M Q, Yang C F, Zhao K, et al. Electroflocution-membrane separation reactor reduction-flocculation-ultrafiltration integrated treatment of hexavalent chromium wastewater[J]. Chinese Journal of Environmental Engineering, 2018,12(1):79-85.
[18]	岳瑞,陈红成,黄玉明,等.聚乙烯亚胺交联法修饰磁性壳聚糖去除水中六价铬[J]. 西南大学学报(自然科学版), 2019,41(7):125-130. Yue R, Chen H C, Huang Y M, FENG Ping. Polyethyleneimine crosslinking modified magnetic chitosan to remove hexavalent chromium from water[J]. Journal of Southwest University (Natural Science Edition), 2019,41(7):125-130.
[19]	冯颖,张庆瑾,苏辰长,等.壳聚糖螯合铬(Ⅵ)的稳定常数测定及螯合效果分析[J]. 科学技术与工程, 2020,20(25):10538-10543. Feng Y, Zhang Q J, Su C C, et al. Determination of Stability Constant of Chitosan Chelated Chromium(VI) and Analysis of Chelation Effect[J]. Science Technology and Engineering, 2020,20(25):10538-10543.
[20]	徐海音,杨朝晖,曾光明,等.基于实时控制的电絮凝-气浮处理重金属清淤尾水[J]. 中国环境科学, 2016,36(3):786-792. Xu H Y, Yang Z H, Zeng G M, et al. Heavy metal dredging tailwater based on real-time control of electrofloculation-air flotation treatment[J]. China Environmental Science, 2016,36(3):786-792.
[21]	席启斐,王社宁,常青,等.高分子重金属絮凝剂CSAX处理铅锌废水[J]. 环境工程学报, 2016,10(8):4097-4103. Xi Q F, Wang S N, Chang Q, et al. Polymer heavy metal flocculant CSAX for the treatment of lead and zinc wastewater[J]. Chinese Journal of Environmental Engineering, 2016,10(8):4097-4103.
[22]	陆曦,刘鉴雯,周晟葆,等.基于重金属去除功能的改性淀粉絮凝剂的研究进展[J]. 南京工业大学学报(自然科学版), 2021,43(5):547-552. Lu X, Liu J W, Zhou S B, et al. Research progress of modified starch flocculants based on heavy metal removal function[J]. Journal of Nanjing University of Technology (Natural Science Edition), 2021, 43(5):547-552.
[23]	李嘉,王刚,徐敏,等.新型重金属絮凝剂巯基乙酰化磺甲基聚丙烯酰胺除铜除浊性能研究[J]. 环境科学学报, 2018,38(10):3990-3996. Li J, Wang G Xu M, et al. Study on copper and turbidity removal performance of a new heavy metal flocculant mercaptoacetylated sulfomethyl polyacrylamide[J]. Acta Scientiae Circumstantiae, 2018, 38(10):3990-3996.
[24]	Yang K J, Chen J H, Liang S B, et al. Preparation of super high concentration cationic polyacrylamide emulsion and its flocculation with cationic polymers[J]. Polymers for Advanced Technologies, 2020,31(11):2711-2721.
[25]	何宝菊,王刚,徐敏,等.新型重金属絮凝剂二硫代羧基化羟甲基聚丙烯酰胺制备条件的优化[J]. 化工新型材料, 2018,46(8):211-216. He B J, Wang G, Xu M, et al. Optimization of preparation conditions for new heavy metal flocculant dithiocarboxylated methylol polyacrylamide[J]. New Chemical Materials, 2018,46(8):211-216.
[26]	国家环境保护总局.水和废水监测分析方法[M]. 4版.北京:中国环境科学出版社, 2002:345-349. State Environmental Protection Administration. Water and wastewater monitoring and analysis methods[M]. 4th edition. Beijing:China Environmental Science Press, 2002:345-349.
[27]	Lu J, Wang Z L, Liu Y L, et al. Removal of from aqueous solution using batch electrocoagulation:Cr removal mechanismand utilization rate of in situ generated metal ions[J]. Process Safety and Environmental Protection, 2016,104:436-443.
[28]	Fiol N, Escudero C, Villaescusa I. Chromium sorption and Cr(Ⅵ) reduction to Cr(Ⅲ) by grape stalks and yohimbe bark[J]. Bioresource Technology, 2008,99(11):5030-5036.
[29]	王刚,杜凤龄,常青,等.新型高分子絮凝剂对废水Cr(Ⅵ)的捕集性能[J]. 环境科学, 2015,36(5):1707-1712. Wang G, Du F L, Chang Q, et al. Capture performance of new polymer flocculants for Cr(VI) in wastewater[J]. Environmental Science, 2015,36(5):1707-1712.
[30]	王刚,李嘉,袁海飞,等.聚乙烯亚胺基黄原酸钠与铁盐共同处理低浊水[J]. 中国环境科学, 2019,39(6):2402-2410. Wang G, Li J, Yuan H F, et al. polyethyleneimine-sodium xanthogenate and iron salts in the treatment of low turbid water[J]. China Environmental Science, 2019,39(6):2402-2410.
[31]	李嘉,王刚,徐敏,等.新型重金属絮凝剂巯基乙酰化磺甲基聚丙烯酰胺除铜除浊性能研究[J]. 环境科学学报, 2018,38(10):3990-3996. Li J, Wang G Xu M, et al. Study on copper and turbidity removal performance of a new heavy metal flocculant mercaptoacetylated sulfomethyl polyacrylamide[J]. Acta Scientiae Circumstantiae, 2018, 38(10):3990-3996.
[32]	方景礼.电镀配合物-理论与应用[M]. 北京:化学工业出版社, 2007:481-515. Fang J L. Electroplating complexes-theory and application[M]. Beijing:Chemical Industry Press, 2007:481-515.
[33]	Wang G, Chang Q, Han X T, et al. Removal of Cr(VI) from aqueous solution by flocculant with the capacity of reduction and chelation[J]. Journal of Hazardous Materials, 2013,248-249:115-121.
[34]	王刚,王志科,常青,等.改性聚乙烯亚胺捕集和回收水中的Cu2+[J]. 环境科学研究, 2017,30(6):953-959. Wang G, Wang Z K, Chang Q, et al. Cu2+ in modified polyethyleneimide capture and recovery water[J]. Research of Environmental Sciences, 2017,30(6):953-959.
[35]	卢涌泉,邓振华.实用红外光谱解析[M]. 北京:电子工业出版社, 1989:200-204. Lu Y Q, Deng Z H. Practical infrared spectra analysis[M]. Beijing:Electronic Industry Press, 1989:200-204.
[36]	Wang G, Chang Q, Zhang M, et al. Effect of pH on the removal of Cr(III) and Cr(VI) from aqueous solution by modified polyethyleneimine[J]. Reactiveand Functional Polymers, 2013,73(11):1439-1446.
[37]	廖强强,王中瑗,李义久,等.三乙烯四胺基双(二硫代甲酸钠)及其重金属配合物的光谱研究[J]. 光谱学与光谱分析, 2009,29(3):829-832. Liao Q Q, Wang Z Y, Li Y J, et al. Spectroscopic study of triethylenetetramine bis (sodium dithioformate) and its heavy metal complexes[J]. Spectroscopy and Spectral Analysis, 2009,29(3):829-832.