Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant

Centrifugal dewatering is one of the effective methods for solid-liquid separation. Although it is used in many industrial processes, the dewatering process is difficult to analyse because various factors influence the process. In most of the centrifugal dewatering cases, the solid-liquid i...

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Main Authors: Fukuyama, Ryo, Tanaka, Takanori, Jami, Mohammed Saedi, Iwata, Masashi
Format: Proceeding Paper
Language:English
Published: 2013
Subjects:
Online Access:http://irep.iium.edu.my/34584/1/FILTECH2013_Fukuyama20130627_Jami_2.pdf
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author Fukuyama, Ryo
Tanaka, Takanori
Jami, Mohammed Saedi
Iwata, Masashi
author_facet Fukuyama, Ryo
Tanaka, Takanori
Jami, Mohammed Saedi
Iwata, Masashi
author_sort Fukuyama, Ryo
collection IIUM
description Centrifugal dewatering is one of the effective methods for solid-liquid separation. Although it is used in many industrial processes, the dewatering process is difficult to analyse because various factors influence the process. In most of the centrifugal dewatering cases, the solid-liquid interface appears as soon as the centrifugal dewatering begins. The details of the dewatering process are as follows: 1. When the dewatering begins, the solid-liquid interface appears and it settles down dramatically. The supernatant can be observed on the top of the sludge layer. 2. The supernatant continues to permeate through the sludge layer even after the height of sludge achieves equilibrium. 3. At the same time as the supernatant disappears, consolidation of the upper sludge restarts due to the existence of meniscus at the sludge surface. 4. The height of sludge achieves equilibrium again. This study investigates the centrifugal dewatering of thick suspensions in consolidation region. The process noted above can be simulated using the basic consolidation equation.
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spelling oai:generic.eprints.org:345842014-01-23T04:20:46Z http://irep.iium.edu.my/34584/ Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant Fukuyama, Ryo Tanaka, Takanori Jami, Mohammed Saedi Iwata, Masashi TP155 Chemical engineering Centrifugal dewatering is one of the effective methods for solid-liquid separation. Although it is used in many industrial processes, the dewatering process is difficult to analyse because various factors influence the process. In most of the centrifugal dewatering cases, the solid-liquid interface appears as soon as the centrifugal dewatering begins. The details of the dewatering process are as follows: 1. When the dewatering begins, the solid-liquid interface appears and it settles down dramatically. The supernatant can be observed on the top of the sludge layer. 2. The supernatant continues to permeate through the sludge layer even after the height of sludge achieves equilibrium. 3. At the same time as the supernatant disappears, consolidation of the upper sludge restarts due to the existence of meniscus at the sludge surface. 4. The height of sludge achieves equilibrium again. This study investigates the centrifugal dewatering of thick suspensions in consolidation region. The process noted above can be simulated using the basic consolidation equation. 2013-10 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/34584/1/FILTECH2013_Fukuyama20130627_Jami_2.pdf Fukuyama, Ryo and Tanaka, Takanori and Jami, Mohammed Saedi and Iwata, Masashi (2013) Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant. In: FILTECH 2013, 22nd-24th Oct. 2013, Wiesbaden, Germany . (Unpublished) https://filtech.de/pdfs/filtech2013_conference_programme.pdf
spellingShingle TP155 Chemical engineering
Fukuyama, Ryo
Tanaka, Takanori
Jami, Mohammed Saedi
Iwata, Masashi
Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title_full Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title_fullStr Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title_full_unstemmed Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title_short Analysis of centrifugal dewatering: consolidation behaviour with and without supernatant
title_sort analysis of centrifugal dewatering consolidation behaviour with and without supernatant
topic TP155 Chemical engineering
url http://irep.iium.edu.my/34584/1/FILTECH2013_Fukuyama20130627_Jami_2.pdf
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