Division of Research and Innovations, Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602 105, Tamil Nadu, India.
College of Resources and Environment, Southwest University, Chongqing 400716, China.
Environ Res. 2023 Aug 15;231(Pt 2):116152. doi: 10.1016/j.envres.2023.116152. Epub 2023 May 22.
The number of studies about the use of efficient techniques to treat contaminated water bodies has increased in recent years. The use of bioremediation method for the reduction of contaminants from aqueous system is receiving a lot of attention. Thus, this study was designed to assess the Eichhornia crassipes biochar amended pollutants sorption competence of multi-metal tolerant Aspergillus flavus on South Pennar River. The physicochemical characteristics declared that the, half of the parameters (turbidity, TDS, BOD, COD, Ca, Mg, Fe, free NH Cl, and F) of South Pennar River were beyond the permissible limits. Furthermore, the lab-scale bioremediation investigation with different treatment groups (group I, II, and III) revealed that the group III (E. crassipes biochar and A. flavus mycelial biomass) showed considerable remediation efficiency on South Pennar River water in 10 days of treatment. The metals adsorbed on the surface of E. crassipes biochar and A. flavus mycelial biomass was also affirmed by SEM analysis. Hence such findings, E. crassipes biochar amended A. flavus mycelial biomass could be a sustainable method of remediating contaminated South Pennar River water.
近年来,研究有效技术处理受污染水体的数量有所增加。生物修复法在减少水系统中的污染物方面受到了广泛关注。因此,本研究旨在评估多金属耐受曲霉(Aspergillus flavus)在南本纳河上利用凤眼莲生物炭吸附污染物的能力。理化特性表明,南本纳河有一半的参数(浊度、总溶解固体、生化需氧量、化学需氧量、钙、镁、铁、游离氨氯和氟)超出了允许范围。此外,通过不同处理组(I 组、II 组和 III 组)的实验室规模生物修复研究表明,在 10 天的处理时间内,III 组(凤眼莲生物炭和曲霉菌丝体生物量)对南本纳河水表现出相当高的修复效率。SEM 分析也证实了吸附在凤眼莲生物炭和曲霉菌丝体生物量表面的金属。因此,这些发现表明,添加了凤眼莲生物炭的曲霉菌丝体生物量可能是修复受污染南本纳河水的一种可持续方法。