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利用砾石上形成的酵母生物膜去除电镀废水中的 Zn(II)：批处理和柱研究。

Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies.

机构信息

Environmental Biotechnology Division, School of Bio- Sciences and Technology, VIT University, Vellore, Tamil Nadu, India.

School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India.

出版信息

J Environ Health Sci Eng. 2014 Jan 7;12(1):8. doi: 10.1186/2052-336X-12-8.

DOI:10.1186/2052-336X-12-8
PMID:24397917
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3904462/
Abstract

BACKGROUND

Present study deals with the removal of Zn(II) ions from effluent using yeast biofilm formed on gravels.

METHODS

The biofilm forming ability of Candida rugosa and Cryptococcus laurentii was evaluated using XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) reduction assay and monitored by scanning electron microscopy (SEM), and Confocal laser scanning microscopy (CLSM). Copious amount of extracellular polymeric substances (EPS) produced by yeast species was quantified and characterized by Fourier transform infrared spectroscopy (FT-IR).

RESULTS

Yeast biofilm formed on gravels by C. rugosa and C. laurentii showed 88% and 74.2% removal of Zn(II) ions respectively in batch mode. In column mode, removal of Zn(II) ions from real effluent was found to be 95.29% by C. rugosa biofilm formed on gravels.

CONCLUSION

The results of the present study showed that there is a scope to develop a cost effective method for the efficient removal of Zn(II) from effluent using gravels coated with yeast biofilm.

摘要

背景

本研究利用砾石上形成的酵母生物膜去除废水中的 Zn(II)离子。

方法

使用 XTT（2,3-双[2-甲氧基-4-硝基-5-磺苯基]-2H-四唑-5-羧酰胺）还原测定法评估产朊假丝酵母和洛伦氏隐球菌形成生物膜的能力，并通过扫描电子显微镜（SEM）和共聚焦激光扫描显微镜（CLSM）进行监测。通过傅立叶变换红外光谱（FT-IR）对酵母产生的大量细胞外聚合物质（EPS）进行定量和表征。

结果

产朊假丝酵母和洛伦氏隐球菌在砾石上形成的酵母生物膜在批次模式下分别去除了 88%和 74.2%的 Zn(II)离子。在柱模式下，用砾石上形成的产朊假丝酵母生物膜从实际废水中去除 Zn(II)离子的效率达到了 95.29%。

结论

本研究结果表明，利用砾石上覆盖的酵母生物膜开发一种从废水中高效去除 Zn(II)的经济有效的方法是有前景的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/3563b02d928e/2052-336X-12-8-12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/14f938fb3d69/2052-336X-12-8-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/9f245e4bf1a2/2052-336X-12-8-2.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/f30b591d7c63/2052-336X-12-8-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/8d13b0547823/2052-336X-12-8-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/63cb50abf790/2052-336X-12-8-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/1714807c9f0a/2052-336X-12-8-7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/9565110cc73b/2052-336X-12-8-8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/2dab68141674/2052-336X-12-8-9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/84a5ef3e5413/2052-336X-12-8-10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/f7ac331854e7/2052-336X-12-8-11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/3563b02d928e/2052-336X-12-8-12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/14f938fb3d69/2052-336X-12-8-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/9f245e4bf1a2/2052-336X-12-8-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/ac73bdfecc8f/2052-336X-12-8-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/f30b591d7c63/2052-336X-12-8-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/8d13b0547823/2052-336X-12-8-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/63cb50abf790/2052-336X-12-8-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/1714807c9f0a/2052-336X-12-8-7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/9565110cc73b/2052-336X-12-8-8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/2dab68141674/2052-336X-12-8-9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/84a5ef3e5413/2052-336X-12-8-10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/f7ac331854e7/2052-336X-12-8-11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1949/3904462/3563b02d928e/2052-336X-12-8-12.jpg

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