Study on leaching of heavy metal contaminated sediment with temperature-sensitive hyperbranched polymer
LIU Ye1, CHEN Liang2, XU Fan1, GENG Rui-wen1, CHEN Qi-guangi1, BAI Wang-jun3, ZHU Jian-zhong1
1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210089, China; 2. Management Division of Qinhuai River Hydraulic Engineering of Jiangsu Province, Nanjing 210089, China; 3. Hohai University Design Institute Co., Ltd, Nanjing 210098, China
Abstract：Hyperbranched polyglycidyl glycerin was synthesized with trimethylopropane as core and glycidyl as polymeric monomer, and then n-caprylic acid was added for surface modification to obtain a series of thermosensitive hyperbranched polymers. The third generation polymer HPG-33 was selected to study its effect on the remediation of heavy metal contaminated sludge by oscillating method. The results showed that the removal rate of heavy metals was positively correlated with the molecular weight of the polymer. When the concentration was 15mmol/L, the solid-liquid ratio was 1:10, the leaching time was 4h, and the pH was 4, the removal rates of Cd, Cu and Pb could reach 76.33%, 86.72% and 49.86%, respectively. And the prepared polymer eluent will not destroy the pH, agglomerate structure, internal mineral lattice and so on.
刘叶, 陈靓, 徐帆, 耿瑞雯, 陈启光, 白王军, 祝建中. 温敏性超支化聚合物淋洗重金属污染底泥研究[J]. 中国环境科学, 2024, 44(4): 2130-2136.
LIU Ye, CHEN Liang, XU Fan, GENG Rui-wen, CHEN Qi-guangi, BAI Wang-jun, ZHU Jian-zhong. Study on leaching of heavy metal contaminated sediment with temperature-sensitive hyperbranched polymer. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(4): 2130-2136.
[1] Zhang G, Bai J, Xiao R, et al. Heavy metal fractions and ecological risk assessment in sediments from urban, rural and reclamation-affected rivers of the Pearl River Estuary, China[J]. Chemosphere, 2017,184:278-288. [2] Ql A, Zj A, Sla B, et al. Assessment of heavy metal pollution, distribution and quantitative source apportionment in surface sediments along a partially mixed estuary (Modaomen, China)[J]. Chemosphere, 2019,225:829-838. [3] V, Pirumyan G, Perikhanyan Y. Determination of heavy metal background concentration in bottom sediment and risk assessment of sediment pollution by heavy metals in the Hrazdan River (Armenia)[J]. Applied Water Science, 2019,9(4):1-9. [4] 张洲,张单,祖艳群,等.5种植物的矿区生长及对底泥重金属富集特征[J]. 环境科学与技术, 2021,44(7):115-122. ZHANG Zhou, ZHANG Shan, Zu Yanqun et al. Growth of five species of plants in mining area and their characteristics of heavy metal enrichment in sediment[J]. Environmental Science and Technology, 21,44(7):115-122. [5] Zhao, X.J.; Gao, B.; Xu, D.Y. et al. Heavy metal pollution in sediments of the largest reservoir (Three Gorges Reservoir) in China:A review. Environ. Sci. Pollut. R. 2017,24:20844-20858. [6] Liu Q, Sheng Y, Jiang M, et al. Attempt of basin-scale sediment quality standard establishment for heavy metals in coastal rivers[J]. Chemosphere, 2019,245:125596. [7] 方小红,彭渤,宋照亮,等.洞庭湖"四水"入湖河床沉积物重金属污染特征[J]. 地球化学, 2019,48(4):378-394. Fang Xiaohong, Peng Bo, SONG Guang-liang et al. Characteristics of heavy metal pollution in riverbed sediments of "four rivers" in Dongting Lake[J]. Geochemistry, 2019,48(4):378-394. [8] Tian L, Yafei S, Xiaoran L, et al. Leaching behaviors and speciation of cadmium from river sediment dewatered using contrasting conditioning[J]. Environmental Pollution, 2020,263(PA):114427. [9] Rodella I, Vaccaro C, Melchiorre M, et al. Textural changes and heavy metal distribution in sediments after decontamination treatment by soil washing and attrition scrubber[J]. Journal of Soils & Sediments, 2018,(4):1780-1793. [10] 朵雯佳,谢更新,丁文川,等.化学浸提剂对土壤团聚体结构稳定性的影响[J]. 环境污染与防治, 2021,43(11):1374-13781382. DUO Wenjia, XIE Gengxin, Ding Wenchuan et al. Effects of chemical extracts on the structural stability of soil aggregates[J]. Environmental Pollution and Control, 2021,43(11):1374-13781382. [11] 陈孜涵,汪丙国,师崇文,等.镉污染土壤淋洗剂研究进展[J]. 安全与环境工程, 2021,28(2):187-195. Chen Zihan, WANG Bingguo, Shi Chongwen et al. Research progress of leaching agents for cadmium-contaminated soil[J]. Safety and Environmental Engineering, 2019,28(2):187-195. [12] Wojtkowska Małgorzata,Bogacki Jan. Assessment of Trace Metals Contamination, Species Distribution and Mobility in River Sediments Using EDTA Extraction[J]. International Journal of Environmental Research and Public Health, 2022,19(12):6978-6978. [13] Sun B, Zhao F J, Lombi E. Leaching of heavy metals from contaminated soils using EDTA[J]. Environmental Pollution, 2001, (2):113,111-120. [14] Huo L, Zhang Z, Shi X. Latest research and developing tendency of hyperbranched polymers fabrication[J]. Journal of Polymer Research, 2021,28(9):1-11. [15] 詹宁宁,张丽锋,赵新星,等.超支化聚合物的合成及应用[J]. 材料导报, 2021,35(S2):616-626. Zhan Ningning, ZHANG Lifeng, ZHAO Xinxing, et al. Synthesis and application of hyperbranched polymers[J]. Materials Review, 2019, 35(S2):616-626. [16] K. P Q, S. A K, L. M Q F, et al. Water model determines thermosensitive and physicochemical properties of poly (N-isopropylacrylamide) in molecular simulations[J]. Frontiers in Materials, 2023. [17] Chen Y, Zhao W, Wang H, et al. Preparation of novel polyaminetype chelating resin with hyperbranched structures and its adsorption performance[J]. R. Soc. Open. Sci., 2018,5(2)171665. [18] Mahsa M, Somaye A, Elmira P, et al. Amine-terminated dendritic polymers as a multifunctional chelating agent for heavy metal ion removals[J]. Environmental science and pollution research international, 2019,26(13):12689-12697. [19] Kafetzi, MarthaBorchert, Konstantin B. L.Steinbach, Christine Schwarz, DanaPispas, StergiosSchwarz, Simona. Thermoresponsive PNIPAM-b-PAA block copolymers as "smart" adsorbents of Cu(II) for water restore treatments[J]. Colloids and Surfaces, A. Physicochemical and Engineering Aspects, 2021,614(1):126049-126061. [20] Sunder A, Hanselmann R, Frey H, et al. Controlled Synthesis of Hyperbranched Polyglycerols by Ring-Opening Multibranching Polymerization[J]. Macromolecules, 1999,32(13):4240-4246. [21] 王瑞聪.水溶性大分子改性制备新型温敏聚合物[D]. 天津:天津大学, 2015. Wang Ruicong. Preparation of novel temperature-sensitive polymers by modification of water-soluble macromolecules[D]. Tianjin:Tianjin University, 2015. [22] Dzhardimalieva G I, Uflyand I E. Synthetic methodologies and spatial organization of metal chelate dendrimers and star and hyperbranched polymers[J]. Dalton Transactions, 2017,46:453-571. [23] Sun J, Jin Y, Wang B, et al. Hightoughening modification of polylactic acid by long hain hyperbranched polymers[J]. Journal of Applied Polymer Science, 2021,(138):1-9. [24] 李美兰,杨晨,龚伟,等.木糖醇型端羧基超支化聚酯/L35复合淋洗剂对矿区污染土壤中重金属的淋洗效果[J]. 干旱区资源与环境, 2021,35(5):94-100. Li Meilan, Yang Chen, Gong Wei, et al. Leaching effect of xylitol terminal carboxyl hyperbranched polyester/L35complex leaching agent on heavy metals in contaminated soil in mining area[J]. Journal of Arid Land Resources and Environment, 2021,(5):94-100. [25] Jvya B, Kyca C, Njb A, et al. Potential of metals leaching from printed circuit boards with biological and chemical lixiviants -ScienceDirect[J]. Hydrometallurgy, 2020,196:105433-105445. [26] 张亚宁,徐明,董颖,等.EDTA与柠檬酸复配淋洗对土壤中重金属去除效果研究[J]. 当代化工, 2018,47(8):1617-1621. Zhang Yaning, Xu Ming, Dong Ying, et al. Study on the removal effect of heavy metals from soil by combination of EDTA and citric acid[J]. Contemporary Chemical Industry, 2018,47(8):1617-1621. [27] 可欣,李培军,张昀,等.利用乙二胺四乙酸淋洗修复重金属污染的土壤及其动力学[J]. 应用生态学报, 2007,(3):601-606. Ke Xin, LI Peijun, ZHANG Yun et al. Remediation of heavy metal contaminated soil by EDTA leaching and its kinetics[J]. Chinese Journal of Applied Ecology, 2007,(3):601-606. [28] Ali S, Iqbal Y, Fahad M, et al. Hydrometallurgical leaching and Kinetic modeling of low grade manganese ore with banana peel in sulfuric acid[J]. International Journal of Minerals Metallurgy and Materials, 2020,28:193-200. [29] Zang C, Zhang D, Xiong J, et al. Preparation of a Novel Adsorbent and Heavy Metal Ion Adsorption[J]. Journal of engineered fibers and fabrics, 2014,9(4):140653. [30] 刘叶,汪存石,吴绍凯,等.电场对高含水率淤泥中Cd2+迁移及去除的影响[J]. 长江科学院院报, 2023,40(2):60-66.
