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在纳米陶上固定下来的降解酸盐细菌的生物降解能力

Manee Jindakaraked¹, Eakalak Khan², Puangrat Kajitvichyanukul¹

¹Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 52000, Thailand.

|July 28, 2023

概括

在纳米陶上固定不动的细菌有效降解除草剂paraquat,在10小时内去除92%. 这种方法还显著减少了溶解的有机,为帕奎特污染提供了一个有希望的解决方案.

科学领域:

环境科学环境科学
微生物学微生物学
材料科学材料科学材料科学

背景情况:

帕拉奎特是一种广泛使用的除草剂,具有环境风险.
开发有效的酸盐生物降解方法对于环境修复至关重要.
纳米材料有潜力作为微生物不动化的有效支持.

研究的目的:

通过在纳米陶上固定微生物细胞,研究酸的生物降解.
为了评估固定细菌在从水中去除帕拉克瓦特的效率.
评估固定细胞在减少溶解有机中的作用.

主要方法:

制造纳米陶从纳米尺度的高酸盐.
在纳米陶上对*Pseudomonas putida* (IC_nc-P) 和*Bacillus subtilis* (IC_nc-B) 的固定.
吸附和生物降解的实验,以确定paraquat的去除效率.
溶解有机 (DON) 减少的分析和最终产品的识别.

主要成果:

在纳米陶上固定的细胞在10小时内清除了大约92%的酸盐,显著超过了自由细胞 (4%).
单独纳米陶吸附了68%的酸盐,而传统陶吸附了52%.
固定细胞显著减少溶解有机 (DON),其中IC_nc-B负责34%的生物降解,IC_nc-P负责22%. 氨被确定为最终产品.

结论:

在纳米陶上对*Pseudomonas putida*和*Bacillus subtilis*的固定是一种非常有效的降生物降解策略.
纳米陶支增强了paraquat的去除,并有助于减少DON.
这种方法为酸污染的水源的生物修复提供了一种可行的方法.

关键词:

生物降解生物降解细胞不动化细胞不动化矿物化的矿化.纳米陶纳米陶的使用方法纳米粘土纳米粘土是什么杀虫剂农药杀虫剂

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