Modeling thixotropic break-down behavior of dense anaerobically digested sludge-Reference-Cited by-同舟云学术

Modeling thixotropic break-down behavior of dense anaerobically digested sludge

Published:2022-01-01 Issue:1 Volume:32 Page:1-7
ISSN:1617-8106
Container-title:Applied Rheology
language:en
Short-container-title:

Author:

Terashima Mitsuharu¹,Kotegawa Yoko²,Sun Meng¹,Liu Bing¹³,Yasui Hidenari¹

Affiliation:

1. Department of Chemical and Environmental Engineering, Faculty of Environmental Engineering, The University of Kitakyushu , 1-1 Hibikino, Wakamatsuku, Kitakyushu , Fukuoka , 8080135 , Japan

2. Overseas Division Overseas Sewage Works Department, Nihon Suido Consultants Co., Ltd , 6-22-1, Nishi Shinjuku, Shinjukuku , Tokyo , 1631122 , Japan

3. Resources and Environment Innovation Research Institute, School of Municipal and Environmental Engineering, Shandong Jianzhu University , Jinan 250101 , China

Abstract

Abstract Mixing and homogenization in anaerobic digesters are affected by the flow curve of sludge. The aim of this study is to mathematically express the flow curve of dense anaerobically digested sludge behaving as thixotropic and pseudoplastic fluids. Time-dependent changes in two pseudoplastic parameters, i.e., consistency index (µ p) and pseudoplastic index (n), by shear are modeled using a second-order kinetic equation with a coefficient that includes the power function of the shear strain rate. The calculated results are consistent with the experimental results. The kinetic parameters that yielded the ultimate values after shearing were associated with the sludge concentration, unlike the other kinetic parameters.

Publisher

Walter de Gruyter GmbH

Subject

Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/arh-2022-0121/pdf

Reference46 articles.

1. Masanobu T, Nobuichi N. Ultra-high solid anaerobic digestion of sewage sludge and ammonia removal/recovery. Environ Eng Res. 2016;72(7):III_117–24 (in Japanese).

2. Terashima M, Goel R, Komatsu K, Yasui H, Takahashi H, Li YY, et al. CFD simulation of mixing in anaerobic digesters. Bioresour Technol. 2009;100(7):2228–33. 10.1016/j.biortech.2008.07.069.

3. Ho J, Sung S. Effects of solid concentrations and cross-flow hydrodynamics on microfiltration of anaerobic sludge. J Membr Sci. 2009;345(1–2):142–7. 10.1016/j.memsci.2009.08.047.

4. Fubin Y, Zifu L, Huanhuan M, Lei X, Xiaofeng B, Yi Y. Experimental study on rheological characteristics of high solid content sludge and it is mesophilic anaerobic digestion. J Renew Sustain Energy. 2013;043117:1–9. 10.1063/1.4816814.

5. Moeller G, Torres LG. Rheological characterization of primary and secondary sludges treated by both aerobic and anaerobic digestion. Bioresour Technol. 1997;61(3):207–11.

Cited by 1 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Intelligent structural health monitoring of composite structures using machine learning, deep learning, and transfer learning: a review;Advanced Composite Materials;2023-05-18