Bioinspired mineralization and remediation of polystyrene nanoparticles by urease-induced calcite precipitation

被引:7
作者
Bhattacharya, Amrik [2 ]
Khare, S. K. [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Enzyme & Microbial Biochem Lab, New Delhi 110016, India
[2] Amity Univ, Amity Inst Environm Sci, Sect 125, Noida 201313, Uttar Pradesh, India
来源
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2024年 / 12卷 / 02期
关键词
Nanoplastics; Polystyrene; Remediation; EICP; Calcite-PSNPs;
D O I
10.1016/j.jece.2024.112092
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nanoplastics (NPs) are emerging contaminants, and their remediation is a challenge, as they escape most of the advanced treatment methods owing to their small size and mobility. Considering this, the present study highlights a novel application of enzyme-induced calcite precipitation (EICP) technique in removal of polystyrene nanoparticles (PSNPs) from the aqueous system using co-precipitation with calcite. A 96% removal of PSNPs was achieved as a calcite-PSNPs composite (precipitated product) within 0.5 h from an aqueous solution (pH 7.0) supplemented with 2% (w/v) urea, 76 U urease, and 50 mM CaCl2. In the solution, the negatively charged PSNPs interacted with available Ca2+ and formed the PSNP-Ca2+ complex. The electrostatic attraction between the complex and the CO32- (generated by ureolysis) resulted in the formation CaCO3-PSNPs composite, which finally precipitates down. Additionally, entrapment of free PSNPs during the precipitation of calcite also contributed to PSNPs removal. The incorporation of PSNPs in the calcite matrix was substantiated through scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis. Optimum removal of PSNPs was detected at pH 7.0, and with the increase in precursors viz CaCl2, urease, and PSNP levels, the precipitation of PSNPs increased. Moreover, calcite-PSNP interaction was stable, as there was no significant polymer release upon ultra-sonication of the composites. Overall, the study provides a feasible and newer approach to sequester PSNPs from the aqueous system using the naturally occurring EICP method.
引用
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页数:9
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共 56 条
[1]   State-of-the-Art Review of the Applicability and Challenges of Microbial-Induced Calcite Precipitation (MICP) and Enzyme-Induced Calcite Precipitation (EICP) Techniques for Geotechnical and Geoenvironmental Applications [J].
Almajed, Abdullah ;
Lateef, Mohammed Abdul ;
Moghal, Arif Ali Baig ;
Lemboye, Kehinde .
CRYSTALS, 2021, 11 (04)
[2]   Fate and removal efficiency of polystyrene nanoplastics in a pilot drinking water treatment plant [J].
Arenas, Lina Ramirez ;
Gentile, Stephan Ramseier ;
Zimmermann, Stephane ;
Stoll, Serge .
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 813
[3]   Coprecipitation-An Efficient Method for Removal of Polymer Nanoparticles from Water [J].
Batool, Asma ;
Valiyaveettil, Suresh .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2020, 8 (35) :13481-13487
[4]   Utilizing the β-lactam hydrolyzing activity of β-lactamase produced by Bacillus cereus EMB20 for remediation of β-lactam antibiotics [J].
Bhattacharya, Amrik ;
Khare, S. K. .
INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 2022, 168
[5]   Production and characterization of Komagataeibacter xylinus SGP8 nanocellulose and its calcite based composite for removal of Cd ions [J].
Bhattacharya, Amrik ;
Sadaf, Ayesha ;
Dubey, Swati ;
Singh, Rajesh P. ;
Khare, Sunil Kumar .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2021, 28 (34) :46423-46430
[6]   Efficacy of ureolytic Enterobacter cloacae EMB19 mediated calcite precipitation in remediation of Zn (II) [J].
Bhattacharya, Amrik ;
Naik, S. N. ;
Khare, S. K. .
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2019, 54 (06) :526-532
[7]   Harnessing the bio-mineralization ability of urease producing Serratia marcescens and Enterobacter cloacae EMB19 for remediation of heavy metal cadmium (II) [J].
Bhattacharya, Amrik ;
Naik, S. N. ;
Khare, S. K. .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2018, 215 :143-152
[8]   Separation and enrichment of nanoplastics in environmental water samples via ultracentrifugation [J].
Cai, Huiwen ;
Chen, Mengdi ;
Du, Fangni ;
Matthews, Sara ;
Shi, Huahong .
WATER RESEARCH, 2021, 203
[9]   Degradation of Polystyrene Nanoplastics in UV/NaClO and UV/PMS Systems: Insights into Degradation Efficiency, Mechanism, and Toxicity Evaluation [J].
Cai, Yishu ;
Chen, Fan ;
Yang, Lingfang ;
Deng, Lin ;
Shi, Zhou .
WATER, 2023, 15 (10)
[10]   Flocculation of polystyrene nanoplastics in water using Mg/Al layered double hydroxides via heteroaggregation [J].
Chen, Ziying ;
Chen, Chengyu ;
Luo, Xuewen ;
Liu, Junhong ;
Huang, Zhujian .
APPLIED CLAY SCIENCE, 2021, 213