Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound

Yi Hsun Lin, Shyh Hau Wang, Chih Chung Huang, Hao Chuan Pai, Kuo Lun Tung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Distribution of fouling may largely affect flux of the microfiltration membrane, in which its formation is related to several factors such as operating pressure, flow rate, concentration/composition of feed solution, and membrane material. It therefore is essential to evaluate fouling distribution on microfiltration membranes before they will be further applied. In this study, an attempt was explored to develop methods and techniques for measuring the fouling distribution using a 35 MHz high frequency ultrasound system. The experiments were carried out from a waste water treatment system that is composed of polyvinylidene fluoride (PVDF) membrane with nominal pore size of 0.22 m and feed solutions with the humic acid solution of 4 ppm. The operating pressure and flow rate were respectively maintained at 1 bar and 0.22 L/min. Areas of those filtration membranes after 5, 15, 30, 60, and 100 minutes filtration durations were raster scanned by the high frequency ultrasound system. The peak-to-peak voltage (Vpp) of ultrasonic signals reflected from the surface of membrane was calculated for the reconstruction of C-scan images. The average Vpp and flux of filtrate were found to decrease exponentially with the increase of filtration duration. In accordance with the flux of filtrate approached to saturate, the variation of average Vpp tended to be nearly minimum. It can be readily observed for the changes of average Vpp that decreased from 3.020.05 V at the beginning of filtration to 1.730.25 V at 100 min duration after filtration with the humic acid solution of 4 ppm. Moreover, the fouling of the humic acid on the membrane was not homogeneously distributed. The acoustic impedance mismatch between the fouling of humic acid and PVDF membrane led the amplitude of ultrasonic signals reflected from the membrane surface to decrease with the increase of fouling deposition. C-scan results indicated that fouling deposition is a both temporal-and spatial-dependent process and that may be feasible to be sensitively and rapidly evaluated by high frequency ultrasound image incorporated with the analysis method.

Original languageEnglish
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages1043-1046
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
Duration: 2010 Oct 112010 Oct 14

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Other

Other2010 IEEE International Ultrasonics Symposium, IUS 2010
CountryUnited States
CitySan Diego, CA
Period10-10-1110-10-14

Fingerprint

fouling
membranes
evaluation
acids
vinylidene
fluorides
flow velocity
ultrasonics
waste water
water treatment
acoustic impedance
porosity
electric potential

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Lin, Y. H., Wang, S. H., Huang, C. C., Pai, H. C., & Tung, K. L. (2010). Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound. In 2010 IEEE International Ultrasonics Symposium, IUS 2010 (pp. 1043-1046). [5935712] (Proceedings - IEEE Ultrasonics Symposium). https://doi.org/10.1109/ULTSYM.2010.5935712
Lin, Yi Hsun ; Wang, Shyh Hau ; Huang, Chih Chung ; Pai, Hao Chuan ; Tung, Kuo Lun. / Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound. 2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. pp. 1043-1046 (Proceedings - IEEE Ultrasonics Symposium).
@inproceedings{10857564fd3c4369beabbae60b4e3426,
title = "Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound",
abstract = "Distribution of fouling may largely affect flux of the microfiltration membrane, in which its formation is related to several factors such as operating pressure, flow rate, concentration/composition of feed solution, and membrane material. It therefore is essential to evaluate fouling distribution on microfiltration membranes before they will be further applied. In this study, an attempt was explored to develop methods and techniques for measuring the fouling distribution using a 35 MHz high frequency ultrasound system. The experiments were carried out from a waste water treatment system that is composed of polyvinylidene fluoride (PVDF) membrane with nominal pore size of 0.22 m and feed solutions with the humic acid solution of 4 ppm. The operating pressure and flow rate were respectively maintained at 1 bar and 0.22 L/min. Areas of those filtration membranes after 5, 15, 30, 60, and 100 minutes filtration durations were raster scanned by the high frequency ultrasound system. The peak-to-peak voltage (Vpp) of ultrasonic signals reflected from the surface of membrane was calculated for the reconstruction of C-scan images. The average Vpp and flux of filtrate were found to decrease exponentially with the increase of filtration duration. In accordance with the flux of filtrate approached to saturate, the variation of average Vpp tended to be nearly minimum. It can be readily observed for the changes of average Vpp that decreased from 3.020.05 V at the beginning of filtration to 1.730.25 V at 100 min duration after filtration with the humic acid solution of 4 ppm. Moreover, the fouling of the humic acid on the membrane was not homogeneously distributed. The acoustic impedance mismatch between the fouling of humic acid and PVDF membrane led the amplitude of ultrasonic signals reflected from the membrane surface to decrease with the increase of fouling deposition. C-scan results indicated that fouling deposition is a both temporal-and spatial-dependent process and that may be feasible to be sensitively and rapidly evaluated by high frequency ultrasound image incorporated with the analysis method.",
author = "Lin, {Yi Hsun} and Wang, {Shyh Hau} and Huang, {Chih Chung} and Pai, {Hao Chuan} and Tung, {Kuo Lun}",
year = "2010",
month = "12",
day = "1",
doi = "10.1109/ULTSYM.2010.5935712",
language = "English",
isbn = "9781457703829",
series = "Proceedings - IEEE Ultrasonics Symposium",
pages = "1043--1046",
booktitle = "2010 IEEE International Ultrasonics Symposium, IUS 2010",

}

Lin, YH, Wang, SH, Huang, CC, Pai, HC & Tung, KL 2010, Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound. in 2010 IEEE International Ultrasonics Symposium, IUS 2010., 5935712, Proceedings - IEEE Ultrasonics Symposium, pp. 1043-1046, 2010 IEEE International Ultrasonics Symposium, IUS 2010, San Diego, CA, United States, 10-10-11. https://doi.org/10.1109/ULTSYM.2010.5935712

Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound. / Lin, Yi Hsun; Wang, Shyh Hau; Huang, Chih Chung; Pai, Hao Chuan; Tung, Kuo Lun.

2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. p. 1043-1046 5935712 (Proceedings - IEEE Ultrasonics Symposium).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound

AU - Lin, Yi Hsun

AU - Wang, Shyh Hau

AU - Huang, Chih Chung

AU - Pai, Hao Chuan

AU - Tung, Kuo Lun

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Distribution of fouling may largely affect flux of the microfiltration membrane, in which its formation is related to several factors such as operating pressure, flow rate, concentration/composition of feed solution, and membrane material. It therefore is essential to evaluate fouling distribution on microfiltration membranes before they will be further applied. In this study, an attempt was explored to develop methods and techniques for measuring the fouling distribution using a 35 MHz high frequency ultrasound system. The experiments were carried out from a waste water treatment system that is composed of polyvinylidene fluoride (PVDF) membrane with nominal pore size of 0.22 m and feed solutions with the humic acid solution of 4 ppm. The operating pressure and flow rate were respectively maintained at 1 bar and 0.22 L/min. Areas of those filtration membranes after 5, 15, 30, 60, and 100 minutes filtration durations were raster scanned by the high frequency ultrasound system. The peak-to-peak voltage (Vpp) of ultrasonic signals reflected from the surface of membrane was calculated for the reconstruction of C-scan images. The average Vpp and flux of filtrate were found to decrease exponentially with the increase of filtration duration. In accordance with the flux of filtrate approached to saturate, the variation of average Vpp tended to be nearly minimum. It can be readily observed for the changes of average Vpp that decreased from 3.020.05 V at the beginning of filtration to 1.730.25 V at 100 min duration after filtration with the humic acid solution of 4 ppm. Moreover, the fouling of the humic acid on the membrane was not homogeneously distributed. The acoustic impedance mismatch between the fouling of humic acid and PVDF membrane led the amplitude of ultrasonic signals reflected from the membrane surface to decrease with the increase of fouling deposition. C-scan results indicated that fouling deposition is a both temporal-and spatial-dependent process and that may be feasible to be sensitively and rapidly evaluated by high frequency ultrasound image incorporated with the analysis method.

AB - Distribution of fouling may largely affect flux of the microfiltration membrane, in which its formation is related to several factors such as operating pressure, flow rate, concentration/composition of feed solution, and membrane material. It therefore is essential to evaluate fouling distribution on microfiltration membranes before they will be further applied. In this study, an attempt was explored to develop methods and techniques for measuring the fouling distribution using a 35 MHz high frequency ultrasound system. The experiments were carried out from a waste water treatment system that is composed of polyvinylidene fluoride (PVDF) membrane with nominal pore size of 0.22 m and feed solutions with the humic acid solution of 4 ppm. The operating pressure and flow rate were respectively maintained at 1 bar and 0.22 L/min. Areas of those filtration membranes after 5, 15, 30, 60, and 100 minutes filtration durations were raster scanned by the high frequency ultrasound system. The peak-to-peak voltage (Vpp) of ultrasonic signals reflected from the surface of membrane was calculated for the reconstruction of C-scan images. The average Vpp and flux of filtrate were found to decrease exponentially with the increase of filtration duration. In accordance with the flux of filtrate approached to saturate, the variation of average Vpp tended to be nearly minimum. It can be readily observed for the changes of average Vpp that decreased from 3.020.05 V at the beginning of filtration to 1.730.25 V at 100 min duration after filtration with the humic acid solution of 4 ppm. Moreover, the fouling of the humic acid on the membrane was not homogeneously distributed. The acoustic impedance mismatch between the fouling of humic acid and PVDF membrane led the amplitude of ultrasonic signals reflected from the membrane surface to decrease with the increase of fouling deposition. C-scan results indicated that fouling deposition is a both temporal-and spatial-dependent process and that may be feasible to be sensitively and rapidly evaluated by high frequency ultrasound image incorporated with the analysis method.

UR - http://www.scopus.com/inward/record.url?scp=80054743225&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80054743225&partnerID=8YFLogxK

U2 - 10.1109/ULTSYM.2010.5935712

DO - 10.1109/ULTSYM.2010.5935712

M3 - Conference contribution

AN - SCOPUS:80054743225

SN - 9781457703829

T3 - Proceedings - IEEE Ultrasonics Symposium

SP - 1043

EP - 1046

BT - 2010 IEEE International Ultrasonics Symposium, IUS 2010

ER -

Lin YH, Wang SH, Huang CC, Pai HC, Tung KL. Evaluation for the distribution of fouling deposition on the microfiltration membrane using high frequency ultrasound. In 2010 IEEE International Ultrasonics Symposium, IUS 2010. 2010. p. 1043-1046. 5935712. (Proceedings - IEEE Ultrasonics Symposium). https://doi.org/10.1109/ULTSYM.2010.5935712