利用嗜热芽孢杆菌 SO-16 去除废水中的重金属污染。
The removal of heavy metal pollution from wastewaters using thermophilic B. cereus SO-16 bacteria.
机构信息
Food Processing Programme, Technical Science Vocational School, Mersin University, TR-33343 Yenisehir, Mersin, Turkiye.
Kutahya Public Health Laboratory, Kutahya, Turkiye.
出版信息
Chemosphere. 2023 Jan;311(Pt 1):136986. doi: 10.1016/j.chemosphere.2022.136986. Epub 2022 Oct 27.
In this study, bioaccumulation, remediation, tolerance, and effects of manganese ions (Mn(II)) and copper ions (Cu(II)) on antioxidant enzymes of thermophilic Bacillus cereus (B. cereus) SO-16 were investigated in detail. The findings of the study showed that Mn(II) was less toxic than Cu(II) to B. cereus SO-16. Moreover, B. cereus SO-16 was exhibited less tolerance to Mn(II) and Cu(II) ions in the liquid medium compared to the solid medium. The growth of bacteria was expressively effective for Mn(II) and Cu(II) concentrations of 2.5 mg/L at 24th h. The highest Mn(II) and Cu(II) bioaccumulation values after 48 h incubation of thermophilic B. cereus SO-16 were measured as 102.04 (24th h) and 87.96 (36th h) metal/dry bacteria weight. The change in morphology and functionality of B. cereus SO-16 after interaction with Mn(II) and Cu(II) was tested using various methods. The results indicated that B. cereus SO-16, a thermophilic bacterium, can be utilized in industrial wastewaters to recover and remediation of toxic metals.
在这项研究中，详细研究了嗜热芽孢杆菌（Bacillus cereus）SO-16 对锰离子（Mn（II））和铜离子（Cu（II））的生物积累、修复、耐受性以及对其抗氧化酶的影响。研究结果表明，Mn（II）对 B. cereus SO-16 的毒性低于 Cu（II）。此外，与固体培养基相比，B. cereus SO-16 在液体培养基中对 Mn（II）和 Cu（II）离子的耐受性较低。在 24 小时时，细菌的生长对 2.5mg/L 的 Mn（II）和 Cu（II）浓度表现出明显的有效性。经过 48 小时培养后，嗜热芽孢杆菌 SO-16 对 Mn（II）和 Cu（II）的最高生物积累值分别为 102.04（24 小时）和 87.96（36 小时）金属/干细菌重量。使用各种方法测试了 Mn（II）和 Cu（II）与 B. cereus SO-16 相互作用后其形态和功能的变化。结果表明，嗜热菌 B. cereus SO-16 可用于工业废水中回收和修复有毒金属。
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