Effects of microbubble-bodyfeeding on filtration properties of clay suspension

Yoshimoto , Akihiko and Ubukata, Hikaru and Tanaka, Takanori and Jami, Mohammed Saedi and Iwata, Masashi (2014) Effects of microbubble-bodyfeeding on filtration properties of clay suspension. In: 10th International Conference on Separation Science and Technology (ICSST14), 30 October -1 November, 2014, Nara, Japan.

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Abstract

Microscopic bubbles with diameter of 1 ~ 50 μm are generally called microbubbles and have different behaviors from ordinary bubbles. For example, very long stagnation, pressurized interior gas due to surface tension and free radical generation under water are characteristics of microbubbles. In cross-flow filtration of river water with UF membrane module, the filtration flux was increased by generating microbubbles in the water [1], while in dead-end cartridge filtration, microbubblebodyfeeding enhanced detachability of filter cake [2]. The reasons for these phenomena have not been clarified yet. In this study, we conducted mainly two constantpressure filtration experiments, i.e. filtration with a cylindrical cartridge filter and upward filtration with a planar filter. In the latter experiment, filtrate flows in the direction opposite to gravity. We compare the detachabilities of filter cake as well as filtration properties of suspensions with and without microbubbles, and discuss the effects of microbubbles on filtration process.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	5545/40477
Uncontrolled Keywords:	microbubble-bodyfeeding
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Prof. Ir. Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited:	09 Jan 2015 08:46
Last Modified:	09 Jan 2015 08:46
URI:	http://irep.iium.edu.my/id/eprint/40477

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