Optimization of microplastic removal based on the complementarity of constructed wetland and microalgal-based system

被引:7
|
作者
Ding, Shaoxuan [1 ]
Gu, Xushun [1 ]
Sun, Shanshan [1 ]
He, Shengbing [1 ,2 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China
[2] Shanghai Engn Res Ctr Landscape Water Environm, Shanghai 200031, Peoples R China
基金
中国国家自然科学基金;
关键词
Microplastics; Constructed wetlands; Microalgal-based system; Complementarity; Combined strategy; ACTIVATED-SLUDGE PROCESS; WATER TREATMENT-PLANT; WASTE-WATER; NITROGEN REMOVAL; FRESH-WATER; FATE; PARTICLES; GROWTH; BIODEGRADATION; IDENTIFICATION;
D O I
10.1016/j.scitotenv.2023.169081
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
As one of the emblematic emerging contaminants, microplastics (MPs) have aroused great public concern. Nevertheless, the global community still insufficiently acknowledges the ecological health risks and resolution strategies of MP pollution. As the nature-based biotechnologies, the constructed wetland (CW) and microalgalbased system (MBS) have been applied in exploring the removal of MPs recently. This review separately presents the removal research (mechanism, interactions, implications, and technical defects) of MPs by a single method of CWs or MBS. But one thing with certitude is that the exclusive usage of these techniques to combat MPs has nonnegligible and formidable challenges. The negative impacts of MP accumulation on CWs involve toxicity to macrophytes, substrates blocking, and nitrogen-removing performance inhibition. While MPs restrict MBS practical application by making troubles for separation difficulties of microalgal-based aggregations from effluent. Hence the combined strategy of microalgal-assisted CWs is proposed based on the complementarity of biotechnologies, in an attempt to expand the removing size range of MPs, create more biodegradable conditions and improve the effluent quality. Our work evaluates and forecasts the potential of integrating combination for strengthening micro-polluted wastewater treatment, completing the synergistic removal of MP-based copollutants and achieving long-term stability and sustainability, which is expected to provide new insights into MP pollution regulation and control.
引用
收藏
页数:18
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