Charged Membrane Ultrafiltration Of Multisalt Systems: Application To Acid Mine Waters

D. Bhattacharyya; S. Shelton; R. B. Grieves

doi:10.1080/01496397908066958

Charged Membrane Ultrafiltration Of Multisalt Systems: Application To Acid Mine Waters

D. Bhattacharyya
, S. Shelton
, R. B. Grieves

Producción científica: Article › revisión exhaustiva

8 Citas (Scopus)

Resumen

Ultrafiltration of dissolved and precipitated inorganic salts from synthetic and actual acid mine waters is investigated experimentally in a bench-scale, continuous-flow unit, utilizing negatively charged, noncellulosic membranes. The process is evaluated in terms of the simultaneous achievement of good water flux without membrane fouling and of adequate ultrafiltrate quality at high water recovery for water reuse operation. At a transmembrane pressure of 5.6 x 10⁵ N/m² and a channel Reynolds number of 6,000, the flux drop is less than 30%, even with a concentrated acid mine water containing 16,000 mg/1 total solids and a high CaSO₄ concentration. At 90% ultrafiltrate recovery, depending on the type of noncellulosic membrane utilized, 98 % iron removal, 85 % aluminum removal, and 50 to 73 % calcium and manganese removals can be obtained at an average water flux from 6.4 x10^-4to 13.2 x 10^-4 cm/sec. The overall ultrafiltrate quality is considerably better than that observed with a lime precipitation process.

Idioma original	English
Páginas (desde-hasta)	193-208
Número de páginas	16
Publicación	Separation Science and Technology
Volumen	14
N.º	3
DOI	https://doi.org/10.1080/01496397908066958
Estado	Published - mar 1 1979

Nota bibliográfica

Funding Information:
This study was supported in part by the Office of Water Research and Technology, Department of the Interior, under the provisions of Public Law 88-379, as Project Number B-050-ICY. The authors also wish to acknowledge the technical contributions of M. Moffitt, G. Balko, and C. Bynum to this work. The cooperation of Dr. Dirk dewinter, Millipore Corp., is appreciated.

Financiación

This study was supported in part by the Office of Water Research and Technology, Department of the Interior, under the provisions of Public Law 88-379, as Project Number B-050-ICY. The authors also wish to acknowledge the technical contributions of M. Moffitt, G. Balko, and C. Bynum to this work. The cooperation of Dr. Dirk dewinter, Millipore Corp., is appreciated.

Financiadores
Office of Water Research and Technology
U.S. Department of the Interior

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Process Chemistry and Technology
Filtration and Separation

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10.1080/01496397908066958

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abstract = "Ultrafiltration of dissolved and precipitated inorganic salts from synthetic and actual acid mine waters is investigated experimentally in a bench-scale, continuous-flow unit, utilizing negatively charged, noncellulosic membranes. The process is evaluated in terms of the simultaneous achievement of good water flux without membrane fouling and of adequate ultrafiltrate quality at high water recovery for water reuse operation. At a transmembrane pressure of 5.6 x 105 N/m2 and a channel Reynolds number of 6,000, the flux drop is less than 30\%, even with a concentrated acid mine water containing 16,000 mg/1 total solids and a high CaSO4 concentration. At 90\% ultrafiltrate recovery, depending on the type of noncellulosic membrane utilized, 98 \% iron removal, 85 \% aluminum removal, and 50 to 73 \% calcium and manganese removals can be obtained at an average water flux from 6.4 x10-4to 13.2 x 10-4 cm/sec. The overall ultrafiltrate quality is considerably better than that observed with a lime precipitation process.",

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AU - Shelton, S.

AU - Grieves, R. B.

N1 - Funding Information: This study was supported in part by the Office of Water Research and Technology, Department of the Interior, under the provisions of Public Law 88-379, as Project Number B-050-ICY. The authors also wish to acknowledge the technical contributions of M. Moffitt, G. Balko, and C. Bynum to this work. The cooperation of Dr. Dirk dewinter, Millipore Corp., is appreciated.

PY - 1979/3/1

Y1 - 1979/3/1

N2 - Ultrafiltration of dissolved and precipitated inorganic salts from synthetic and actual acid mine waters is investigated experimentally in a bench-scale, continuous-flow unit, utilizing negatively charged, noncellulosic membranes. The process is evaluated in terms of the simultaneous achievement of good water flux without membrane fouling and of adequate ultrafiltrate quality at high water recovery for water reuse operation. At a transmembrane pressure of 5.6 x 105 N/m2 and a channel Reynolds number of 6,000, the flux drop is less than 30%, even with a concentrated acid mine water containing 16,000 mg/1 total solids and a high CaSO4 concentration. At 90% ultrafiltrate recovery, depending on the type of noncellulosic membrane utilized, 98 % iron removal, 85 % aluminum removal, and 50 to 73 % calcium and manganese removals can be obtained at an average water flux from 6.4 x10-4to 13.2 x 10-4 cm/sec. The overall ultrafiltrate quality is considerably better than that observed with a lime precipitation process.

AB - Ultrafiltration of dissolved and precipitated inorganic salts from synthetic and actual acid mine waters is investigated experimentally in a bench-scale, continuous-flow unit, utilizing negatively charged, noncellulosic membranes. The process is evaluated in terms of the simultaneous achievement of good water flux without membrane fouling and of adequate ultrafiltrate quality at high water recovery for water reuse operation. At a transmembrane pressure of 5.6 x 105 N/m2 and a channel Reynolds number of 6,000, the flux drop is less than 30%, even with a concentrated acid mine water containing 16,000 mg/1 total solids and a high CaSO4 concentration. At 90% ultrafiltrate recovery, depending on the type of noncellulosic membrane utilized, 98 % iron removal, 85 % aluminum removal, and 50 to 73 % calcium and manganese removals can be obtained at an average water flux from 6.4 x10-4to 13.2 x 10-4 cm/sec. The overall ultrafiltrate quality is considerably better than that observed with a lime precipitation process.

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Charged Membrane Ultrafiltration Of Multisalt Systems: Application To Acid Mine Waters

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