Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling

Ingrida Bremere; Maria D. Kennedy; Amayo Johnson; Rani Van Emmerik; Geert Jan Witkamp; Jan C. Schippers

doi:10.1016/S0011-9164(98)00152-0

Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling

Ingrida Bremere, Maria D. Kennedy, Amayo Johnson, Rani Van Emmerik, Geert Jan Witkamp, Jan C. Schippers

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Scopus citations

Abstract

A desupersaturation unit (DU), placed between the stages of either RO or NF systems is aimed at reducing the degree of supersaturation in the concentrate stream thus preventing membrane scaling in the last stage of a membrane filtration system while allowing conversion to be maximized up to design limits (>90%). Barium sulfate desupersaturation in an up-flow fixed bed reactor was demonstrated for ca. 200 h (Concentrate A). However, barium removal in the DU was shown to be source dependent and early break-through of the DU occurred with Concentrate B after ca. 30 h. Calculations showed that barium sulfate deposition in the DU was affected by natural organic matter (NOM). Blocking of seed crystal surface by rapid adsorption of certain NOM fractions hindered crystal growth and was believed to be the main reason for break-through in the DU. Recycling of these naturally occurring organic molecules as 'natural antiscalants' to maximize the conversion of RO (NF) systems may be possible if they can be isolated and characterized.

Original language	English (US)
Title of host publication	the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3); Amsterdam, Neth
Pages	199-204
Number of pages	6
Volume	119
Edition	1-3
DOIs	https://doi.org/10.1016/S0011-9164(98)00152-0
State	Published - Sep 20 1998
Externally published	Yes
Event	Proceedings of the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3) - Amsterdam, Neth Duration: Sep 21 1998 → Sep 24 1998

Publication series

Name	Desalination
Publisher	Elsevier
ISSN (Print)	0011-9164

Conference

Conference	Proceedings of the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3)
City	Amsterdam, Neth
Period	09/21/98 → 09/24/98

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)
Water Science and Technology
Mechanical Engineering

Access to Document

10.1016/S0011-9164(98)00152-0

Cite this

Bremere, I., Kennedy, M. D., Johnson, A., Van Emmerik, R., Witkamp, G. J., & Schippers, J. C. (1998). Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling. In the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3); Amsterdam, Neth (1-3 ed., Vol. 119, pp. 199-204). (Desalination). https://doi.org/10.1016/S0011-9164(98)00152-0

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abstract = "A desupersaturation unit (DU), placed between the stages of either RO or NF systems is aimed at reducing the degree of supersaturation in the concentrate stream thus preventing membrane scaling in the last stage of a membrane filtration system while allowing conversion to be maximized up to design limits (>90%). Barium sulfate desupersaturation in an up-flow fixed bed reactor was demonstrated for ca. 200 h (Concentrate A). However, barium removal in the DU was shown to be source dependent and early break-through of the DU occurred with Concentrate B after ca. 30 h. Calculations showed that barium sulfate deposition in the DU was affected by natural organic matter (NOM). Blocking of seed crystal surface by rapid adsorption of certain NOM fractions hindered crystal growth and was believed to be the main reason for break-through in the DU. Recycling of these naturally occurring organic molecules as 'natural antiscalants' to maximize the conversion of RO (NF) systems may be possible if they can be isolated and characterized.",

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Bremere, I, Kennedy, MD, Johnson, A, Van Emmerik, R, Witkamp, GJ & Schippers, JC 1998, Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling. in the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3); Amsterdam, Neth. 1-3 edn, vol. 119, Desalination, pp. 199-204, Proceedings of the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3), Amsterdam, Neth, 09/21/98. https://doi.org/10.1016/S0011-9164(98)00152-0

Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling. / Bremere, Ingrida; Kennedy, Maria D.; Johnson, Amayo et al.
the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3); Amsterdam, Neth. Vol. 119 1-3. ed. 1998. p. 199-204 (Desalination).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Kennedy, Maria D.

AU - Johnson, Amayo

AU - Van Emmerik, Rani

AU - Witkamp, Geert Jan

AU - Schippers, Jan C.

PY - 1998/9/20

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N2 - A desupersaturation unit (DU), placed between the stages of either RO or NF systems is aimed at reducing the degree of supersaturation in the concentrate stream thus preventing membrane scaling in the last stage of a membrane filtration system while allowing conversion to be maximized up to design limits (>90%). Barium sulfate desupersaturation in an up-flow fixed bed reactor was demonstrated for ca. 200 h (Concentrate A). However, barium removal in the DU was shown to be source dependent and early break-through of the DU occurred with Concentrate B after ca. 30 h. Calculations showed that barium sulfate deposition in the DU was affected by natural organic matter (NOM). Blocking of seed crystal surface by rapid adsorption of certain NOM fractions hindered crystal growth and was believed to be the main reason for break-through in the DU. Recycling of these naturally occurring organic molecules as 'natural antiscalants' to maximize the conversion of RO (NF) systems may be possible if they can be isolated and characterized.

AB - A desupersaturation unit (DU), placed between the stages of either RO or NF systems is aimed at reducing the degree of supersaturation in the concentrate stream thus preventing membrane scaling in the last stage of a membrane filtration system while allowing conversion to be maximized up to design limits (>90%). Barium sulfate desupersaturation in an up-flow fixed bed reactor was demonstrated for ca. 200 h (Concentrate A). However, barium removal in the DU was shown to be source dependent and early break-through of the DU occurred with Concentrate B after ca. 30 h. Calculations showed that barium sulfate deposition in the DU was affected by natural organic matter (NOM). Blocking of seed crystal surface by rapid adsorption of certain NOM fractions hindered crystal growth and was believed to be the main reason for break-through in the DU. Recycling of these naturally occurring organic molecules as 'natural antiscalants' to maximize the conversion of RO (NF) systems may be possible if they can be isolated and characterized.

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ER -

Bremere I, Kennedy MD, Johnson A, Van Emmerik R, Witkamp GJ, Schippers JC. Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling. In the 1998 Conference on Membranes in Drinking and Industrial Water Production. Part 2 (of 3); Amsterdam, Neth. 1-3 ed. Vol. 119. 1998. p. 199-204. (Desalination). doi: 10.1016/S0011-9164(98)00152-0

Increasing conversion in membrane filtration systems using a desupersaturation unit to prevent scaling

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