Knowledge Management System Of Institute of process engineering,CAS
| Evaluation of the influence of extracellular polymeric substances on the mass transport of substrate within multispecies biofilms | |
| Alternative Title | Chin. J. Chem. Eng. |
| Cao, HB; Li, XG; Jiang, B; Sun, JS; Zhang, Y | |
| 2004-08-01 | |
| Source Publication | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| ISSN | 1004-9541 |
| Volume | 12Issue:4Pages:590-594 |
| Abstract | A model, for evaluating the effect of porosity and volume fraction of extracellular polymeric substances (EPS) within multispecies biofilms on the effective diffusivity, is developed and experimentally validated, based on the extraction of EPS from intact biofilms. The amount of EPS in biofilms significantly affects the effective diffusivity. For biofilms with porosity of 77%-95% in the top layers and 54%-58% in the bottom layers, the value of D-e/D-w decreases from 0.52-0.83 in the top layers to 0.23-0.31 in the bottom layers. Generally, the effective diffusivity in the heterotrophic/autotrophic biofilms is slightly lower than that in the heterotrophic biofilms, due to the lower porosity in the heterotrophic/autotrophic biofilms.; A model, for evaluating the effect of porosity and volume fraction of extracellular polymeric substances (EPS) within multispecies biofilms on the effective diffusivity, is developed and experimentally validated, based on the extraction of EPS from intact biofilms. The amount of EPS in biofilms significantly affects the effective diffusivity. For biofilms with porosity of 77%-95% in the top layers and 54%-58% in the bottom layers, the value of D-e/D-w decreases from 0.52-0.83 in the top layers to 0.23-0.31 in the bottom layers. Generally, the effective diffusivity in the heterotrophic/autotrophic biofilms is slightly lower than that in the heterotrophic biofilms, due to the lower porosity in the heterotrophic/autotrophic biofilms. |
| Keyword | Biofilm Extracellular Polymeric Substance Effective Diffusivity |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | EFFECTIVE DIFFUSIVITIES ; DIFFUSION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000224784800025 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/4932 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, Tianjin 300072, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, HB,Li, XG,Jiang, B,et al. Evaluation of the influence of extracellular polymeric substances on the mass transport of substrate within multispecies biofilms[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2004,12(4):590-594. |
| APA | Cao, HB,Li, XG,Jiang, B,Sun, JS,&Zhang, Y.(2004).Evaluation of the influence of extracellular polymeric substances on the mass transport of substrate within multispecies biofilms.CHINESE JOURNAL OF CHEMICAL ENGINEERING,12(4),590-594. |
| MLA | Cao, HB,et al."Evaluation of the influence of extracellular polymeric substances on the mass transport of substrate within multispecies biofilms".CHINESE JOURNAL OF CHEMICAL ENGINEERING 12.4(2004):590-594. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| EvaluationoftheI_省略_（286KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment