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方法：聚氨酯用作支撑介质对表面积的影响。

Methods Influence in Surface Area Result from Polyurethane Used as Support Media.

作者信息

Mattos de Oliveira Cruz Luana, Oliveira Menezes Rosana, Salgado Duarte Tammy, Camargo Bueno Daniel Augusto

机构信息

School of Civil Engineering, Architecture and Urban Planning - FECFAU, UNICAMP (University of Campinas). Avenida Albert Einstein, 951, Cidade Universitária "Zeferino Vaz", P.O. Box 6021, 13083-852 Campinas, SP, Brazil.

出版信息

ACS Omega. 2024 Mar 22;9(13):14766-14770. doi: 10.1021/acsomega.3c06098. eCollection 2024 Apr 2.

DOI:10.1021/acsomega.3c06098
PMID:38585129
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10993272/
Abstract

We evaluated if different measurement methods influence the surface area results from a polyurethane sponge used as support media in biofilm reactors. The surface area values are normally used to characterize and present advantages from supported medias. However, the methodology to determine it is barely discussed. We compared two specific surface area methodologies: Brunauer-Emmett-Teller (BET) and analysis of images obtained by a scanning electron microscope (SEM). Specific surface area by BET was 93769.1 m m (average); for SEM methodology, 10586.6 m m. The BET value was higher than expected in reality, and the SEM method result was more suitable and used as data input in a mathematical modeling.

摘要

我们评估了不同的测量方法是否会影响用作生物膜反应器支撑介质的聚氨酯海绵的表面积结果。表面积值通常用于表征和展示支撑介质的优势。然而，确定表面积的方法却很少被讨论。我们比较了两种比表面积测定方法：布鲁诺尔-埃米特-特勒（BET）法和通过扫描电子显微镜（SEM）获得的图像分析方法。BET法测得的比表面积为93769.1平方米（平均值）；SEM法测得的比表面积为10586.6平方米。BET值比实际预期的要高，而SEM法的结果更合适，并用作数学建模的数据输入。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f90/10993272/a263e99772bc/ao3c06098_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f90/10993272/1219302648d1/ao3c06098_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f90/10993272/a263e99772bc/ao3c06098_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f90/10993272/1219302648d1/ao3c06098_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f90/10993272/a263e99772bc/ao3c06098_0002.jpg

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本文引用的文献

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Inorganic carbon limitation during nitrogen conversions in sponge-bed trickling filters for mainstream treatment of anaerobic effluent.在主流厌氧出水处理中，海绵床滴滤器中氮转化过程中的无机碳限制。
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