Effects of background ion types and concentrations on the co-transport of polystyrene microplastics / lead in saturated quartz sand
CHANG Bo-kun1, CHEN Yi-ting1, CAO Gang1, HU Liang1, Lü Jia-long1, DU Wei1, HU Fei-nan1,2
1. College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; 2. Institute of Soil and Water Conservation, CAS & Ministry of Water Resources, Yangling, Shaanxi 712100, China
Abstract:In order to elucidate the effect of hydrochemical conditions on the transport of microplastics and heavy metals, and to clarify the coupling effect in the co-transport process of the two environmental pollutants and their response mechanism to environmental conditions preliminarily, the effects of background electrolyte ions with different valence and concentrations on the individual and co-transport behaviors of 1μm polystyrene microplastics (PS-MPs) and Pb2+ in a saturated one-dimensional sand column were studied. The experimental results showed that the increase in the background ion concentration or the valence would inhibit the individual transport ability of PS-MPs. When the Na+ concentration increased from 1mmol/L to 100mmol/L, the repulsive barrier between PS-MPs and quartz sand decreased by 1348kT; when the Ca2+ concentration increased from 1mmol/L to 100mmol/L, the repulsive barrier between PS-MPs and quartz sand decreased by 956kT. Pb2+ in PS-MPs/Pb2+ binary system could reduce the transport ability of PS-MPs, and the increase of the background ion concentration and the valence can weaken the inhibition of Pb2+ on the transport ability of PS-MPs. When the Na+ concentration increased from 1mmol/L to 100mmol/L, the repulsive barrier between PS-MPs and quartz sand decreased by 1100kT; when the Ca2+ concentration increased from 1mmol/L to 100mmol/L, the repulsive barrier between PS-MPs and quartz sand decreased by 543kT. The increase in the background ion concentration or the valence can promote the individual transport ability of Pb2+. PS-MPs can promote the transport of Pb2+ in the binary system of PS-MPs/Pb2+. When the background ion concentration was low, the transport of Pb2+loaded by PS-MPs was higher, and vice versa. For PS-MPs and Pb2+ individual transport systems, the increase in background cation concentration and valence can further shield the negative charges on the surface of PS-MPs and quartz sand, competitive adsorption the surface binding sites of quartz sand, inhibits the transport of PS-MPs while promoting Pb2+ transport. For the co-transport system of PS-MPs and Pb2+, the increase in background ion concentration and valence can weaken the inhibitory effect of Pb2+ on the transport ability of PS-MPs by adjusting the interaction between Pb2+ and PS-MPs and the surface of quartz sand. The competitive adsorption of background ions to PS-MPs’ surface sites and the shielding effect on charges affect the transport ability of Pb2+ loaded by PS-MPs.
常博焜, 陈怡汀, 曹钢, 胡良, 吕家珑, 杜伟, 胡斐南. 背景离子类型和浓度对聚苯乙烯微塑料/铅在饱和石英砂中共运移的影响[J]. 中国环境科学, 2022, 42(7): 3193-3203.
CHANG Bo-kun, CHEN Yi-ting, CAO Gang, HU Liang, Lü Jia-long, DU Wei, HU Fei-nan. Effects of background ion types and concentrations on the co-transport of polystyrene microplastics / lead in saturated quartz sand. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(7): 3193-3203.
杨光蓉,陈历睿,林敦梅.土壤微塑料污染现状、来源、环境命运及生态效应[J].中国环境科学, 2021,41(1):353-365. Yang G Y, Chen L R, Lin D M. Status, sources, environmental fate and ecological consequences of microplastic pollution in soil[J]. China Environmental Science, 2021,41(1):353-365.
[2]
Wang W F, Ge J, Yu X Y, et al. Environmental fate and impacts of microplastics in soil ecosystems:Progress and perspective[J]. Science of the Total Environment, 2019,708:134841.
[3]
Zhang S L, Yang X M, Gertsen H, et al. A simple method for the extraction and identification of light density microplastics from soil[J]. Science of the Total Environment, 2018,616-617:1056-1065.
[4]
Peng G Y, Zhu B S, Yang D Q, et al. Microplastics in sediments of the Changjiang Estuary[J]. Environmental Pollution, 2017,225:283-290.
[5]
Ren Z F, Gui X Y, Xu X Y, et al. Microplastics in the soil-groundwater environment:Aging, migration, and co-transport of contaminants-A critical review[J]. Journal of Hazardous Materials, 2021,419:126455.
[6]
Wu X L, Liu X Y, Li Z Y,et al. Transport of polystyrene nanoplastics in natural soils:Effect of soil properties, ionic strength and cation type[J]. Science of the Total Environment, 2020,707:136065.
[7]
李宵慧,徐红霞,孙媛媛,等.多孔介质中微塑料的环境行为研究进展[J].中国环境科学, 2021,41(6):2798-2811. Li X H, Xu H X, Sun Y Y, et al. Review on the environmental behaviors of microplastics in porous media[J]. China Environmental Science, 2021,41(6):2798-2811.
[8]
王俊杰,陈晓晨,李权达,等.老化作用对微塑料吸附镉的影响及其机制[J].环境科学, 2022,43(4):2030-2038. Wang J J, Chen X C, Li Q D,et al. Effect of aging on the Cd adsorption by microplastics and the relevant mechanisms[J]. Environmental Science, 2022,43(4):2030-2038.
[9]
Ling X, Yan Z H, Liu Y X, et al. Transport of nanoparticles in porous media and its effects on the co-existing pollutants[J]. Environmental Pollution, 2021,283,117098.
[10]
冯天朕,陈苏,陈影,等.微塑料与Cd交互作用对小麦种子发芽的生态毒性研究[J].中国环境科学, 2022,42(4):1892-1900. Feng T Z, Chen S, Chen Y, et al. Study on ecological toxicity of microplastics and cadmium interaction on wheat seed germination[J]. China Environmental Science, 2022,42(4):1892-1900.
[11]
Camacho M, Herrera A, Gómez M, et al. Organic pollutants in marine plastic debris from Canary Islands beaches[J]. Science of the Total Environment, 2019,662:22-31.
[12]
Alimi O S, Budarz F J, Hernandez L M, et al. Microplastics and nanoplastics in aquatic environments:Aggregation, deposition, and enhanced contaminant transport[J]. Environmental Science&Technology, 2018,52(4):1704-1724.
[13]
Yao J Y, Wang H N, Ma C X, et al. Cotransport of thallium (I) with polystyrene plastic particles in water-saturated porous media[J]. Journal of Hazardous Materials, 2022,422:126910.
[14]
郭春凤,刘玲,唐凤雪,等.常见湿生植物对镉、铅污染水环境的修复效果研究[J].植物科学学报, 2021,39(5):535-542. Guo C F, Liu L, Tang F X, et al. Remediation effects of commom wetland plants on cadmium-and lead-polluted water environment[J]. Plant Science Journal, 2021,39(5):535-542.
[15]
Abbasi S, Keshavarzi B, Moore F, et al. Investigation of microrubbers, microplastics and heavy metals in street dust:a study in Bushehr city, Iran[J]. Environmental earth sciences, 2017,76(23):1-19.
[16]
Yu H, Zhang Z, Zhang Y, et al. Metal type and aggregate microenvironment govern the response sequence of speciation transformation of different heavy metals to microplastics in soil[J]. Science of The Total Environment, 2021,752:141956.
[17]
Zhou Y F, Liu X N, Wang J. Characterization of microplastics and the association of heavy metals with microplastics in suburban soil of central China[J]. Science of the Total Environment, 2019,694:133798.
[18]
Li W J, Lo H S, Wong H M, et al. Heavy metals contamination of sedimentary microplastics in Hong Kong[J]. Marine Pollution Bulletin, 2020,153:110977.
[19]
Davranche M, Veclin C, Pierson-Wickmann A C, et al. Are nanoplastics able to bind significant amount of metals?The lead example[J]. Environmental pollution, 2019,249:940-948.
[20]
Jiang Y J, Qin Z M, Fei J, et al. Surfactant-induced adsorption of Pb (II) on the cracked structure of microplastics[J]. Journal of Colloid and Interface Science, 2022,621:91-100.
[21]
李亚男,陈梦洁,吴渊,等.纳米塑料聚苯乙烯对水中铅离子的吸附行为研究[J].环境科学学报, 42(3):1-9. Li Y N, Chen M J, Wu Y, et al. Study on adsorption behavior of nanoplastics polystyrene for lead ions in water[J]. Acta Scientiae Circumstantiae, 42(3):1-9.
[22]
Li M, He L, Zhang X W, et al. Different surface charged plastic particles have different cotransport behaviors with kaolinite particles in porous media[J]. Environmental Pollution, 2020,267:115534.
[23]
赵君怡,张克强,王风,等.猪场废水灌溉对地下水中钾、钙、钠、镁含量的影响[J].水土保持学报, 2011,25(5):135-139. Zhao J Y, Zhang K Q, Wang F, et al. Influence of livestock wastewater irrigation on Potassium, Calcium, Sodium and Magnesium contents in groundwater[J]. Journal of Soil and Water Conservation, 2011,25(5):135-139.
[24]
Zhou Q Q, Yang N, Li Y Z, et al. Total concentrations and sources of heavy metal pollution in global river and lake water bodies from 1972 to 2017[J]. Global Ecology and Conservation, 2020,22:e00925.
[25]
Li X H, Xu H X, Gao B, et al. Cotransport of herbaspirillum chlorophenolicum FA1 and heavy metals in saturated porous media:Effect of ion type and concentration[J]. Environmental Pollution, 2019,254:112940.
[26]
Cao G, Sun J X, Chen M H, et al. Co-transport of ball-milled biochar and Cd2+ in saturated porous media[J]. Journal of Hazardous Materials, 2020,416:125725.
[27]
Hou J, Xu X Y, Lan L, et al. Transport behavior of micro polyethylene particles in saturated quartz sand:Impacts of input concentration and physicochemical factors[J]. Environmental Pollution journal, 2020, 263:114499.
[28]
Dong Z Q, Zhang W, Qiu Z L, et al. Cotransport of nanoplastics (NPs) with fullerene (C60) in saturated sand:Effect of NPs/C60 ratio and seawater salinity[J]. Water Research, 2019,148:469-478.
[29]
Hogg R, Healy T W, and Fuerstenau D W. Mutual coagulation of colloidal dispersions[J]. Transactions of the Faraday Society, 1966, 62(615):1638-1651.
[30]
Oss C J, Chaudhury M K, Good R J. Interfacial lifshitz-van der waals and polar interactions in macroscopic systems[J]. Chemical Research, 1988,88:927-941.
[31]
Gregory. Approximate expressions for retarded van der waals interaction[J]. Journal of Colloid and Interface Science, 1981,83:138-145.
[32]
Hu E Z, Shang S Y, Fu Z T, et al. Cotransport of naphthalene with polystyrene nanoplastics (PSNP) in saturated porous media:Effects of PSNP/naphthalene ratio and ionic strength[J]. Chemosphere, 2020, 245:125602.
[33]
Wu X L, Liu X Y, Li Z Y, et al. Transport of polystyrene nanoplastics in natural soils:Effect of soil properties, ionic strength and cation type[J]. Science of the Total Environment, 2020,707:136065.
[34]
Li Y, Wang X J, Fu W Y,et al. Interactions between nano/micro plastics and suspended sediment in water:Implications on aggregation and settling[J]. Water Research, 2019,161:486-495.
[35]
Dong Z Q, Zhu L, Zhang W,et al. Role of surface functionalities of nanoplastics on their transport in seawater-saturated sea sand[J]. Environmental Pollution, 2019:113177.
[36]
Quik J T K, Velzeboer I, Wouterse M, et al. Heteroaggregation and sedimentation rates for nanomaterials in natural waters[J]. Water Research, 2014,48(1):269-279.
[37]
Jiang Y J, Yin X Q, Xi X L,et al. Effect of surfactants on the transport of polyethylene and polypropylene microplastics in porous media[J]. Water. Research, 2021,196:117016.
[38]
Li S C, Liu H, Gao R, et al. Aggregation kinetics of microplastics in aquatic environment:Complex roles of electrolytes, pH, and natural organic. matter[J]. Environmental Pollution, 2018,237:126-132.
[39]
Sasidharan S, Torkzaban S, Bradford S A, et al. Coupled effects of hydrodynamic and solution chemistry on long-term nanoparticle transport and deposition in saturated porous media[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2014,457:169-179.
[40]
Peng Y H, Tsai Y C, Hsiung C E, et al. Influence of water chemistry on the environmental behaviors of commercial ZnO nanoparticles in various water and wastewater samples[J]. Journal of Hazardous Materials, 2017,322:348-356.
[41]
张文,董志强,黄睿,等.海洋多孔介质中微塑料和富勒烯的共迁移[J].中国环境科学, 2019,39(12):5063-5068. Zhang W, Dong Z Q, Huang R, et al. Cotransport of microplastics and fullerene in marine porous media[J]. China Environmental Science, 2019,39(12):5063-5068.
[42]
Tang S, Lin L J, Wang X S, et al. Pb (II) uptake onto nylon microplastics:Interaction mechanism and adsorption performance[J]. Journal of Hazardous Materials, 2020,386:121960.
[43]
Hua Z L, Tang Z Q, Bai X, et al. Aggregation and resuspension of graphene oxide in simulated natural surface aquatic environments[J]. Environmental Pollution, 2015,205:161-169.
[44]
Shen M H, Yin Y G, Booth A, et al. Effects of molecular weightdependent physicochemical heterogeneity of natural organic matter on the aggregation of fullerene nanoparticles in mono-and di-valent electrolyte solutions[J]. Water Research, 2015,71:11-20.
[45]
Akdogan Z and Guven B. Microplastics in the environment:A critical review of current understanding and identification of future research needs[J]. Environmental Pollution, 2019,254:113011.
[46]
Cauwenberghe L V and Janssen C R. Microplastics in bivalves cultured for human consumption[J]. Environmental Pollution, 2014, 193:65-70.
[47]
Jiang Y J, Yin X Q, Guan D, et al. Co-transport of Pb (II) and oxygen-content-controllable graphene oxide from electron-beamirradiated graphite in saturated porous media[J]. Journal of Hazardous Materials, 2019,375:297-304.
[48]
张瑞昌,李泽林,魏学锋,等.模拟环境老化对PE微塑料吸附Zn (II)的影响[J].中国环境科学, 2020,40(7):3135-3142. Zhang R C, Li Z L, Wei X F, et al. Effects of simulated environmental aging on the adsorption of Zn (II) onto PE microplastics[J]. China Environmental Science, 2020,40(7):3135-3142.
[49]
Ahechti M, Benomar M, Alami M E, et al. Metal adsorption by microplastics in aquatic environments under controlled conditions:exposure time, pH and salinity[J]. International Journal of Environmental Analytical Chemistry, 2022,102(5):1118-1125.
[50]
Purwiyanto A I S, Suteja Y, Trisno, et al. Concentration and adsorption of Pb and Cu in microplastics:Case study in aquatic environment[J]. Marine Pollution Bulletin journal, 2020,158:111380.