dor_id: 4122013

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650.#.4.x: Biología y Química

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336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

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856.4.0.u: https://www.revistascca.unam.mx/rica/index.php/rica/article/view/25521/24066

100.1.#.a: Al Subu, M. M.; Salim, R.; Bradc, H.; Swaileh, K. M.

524.#.#.a: Al Subu, M. M., et al. (2001). Removal of dissolved copper from polluted water using plant leaves. ii. effects of copper concentration, plant leaves, competing ions and other factors. Revista Internacional de Contaminación Ambiental; Vol. 17, Núm. 3, 2001; 123-127. Recuperado de https://repositorio.unam.mx/contenidos/4122013

245.1.0.a: Removal of dissolved copper from polluted water using plant leaves. ii. effects of copper concentration, plant leaves, competing ions and other factors

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Centro de Ciencias de la Atmósfera, UNAM

264.#.0.c: 2001

264.#.1.c: 2011-06-06

653.#.#.a: Poplar leaves, populus euphratica, copper uptake, polluted water, adsorption

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC 4.0 Internacional, https://creativecommons.org/licenses/by-nc/4.0/legalcode.es, fecha de asignación de la licencia 2011-06-06, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico claudio.amescua@atmosfera.unam.mx

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041.#.7.h: spa

520.3.#.a: Factors affecting copper removal from polluted water by poplar (Populus euphratica) leaves were investigated and a mechanism for copper removal was suggested. Increasing the amount of leaves from 5 to 25 g/L increased the rate and hence the amount of copper removed. Increasing the concentration of copper in solution from 2 to 20 mg/L caused a corresponding increase in copper uptake per unit weight of leaves at a constant leaf concentration of 20 g/L. The uptake of copper ions by poplar leaves was found to be noticeably affected by the presence of other metal ions. The effect of these ions could be dependent on the relative affinity of leaves to these ions and copper as well as to pH. Depending on the initial concentration, the presence of the chelating agent EDTA in the solution considerably reduced the rate and amount of copper uptake. Fresh leaves were found to uptake much less copper thandry leaves. Rough-crushing or fme-grinding of leaves slightly affected copper uptake. Agitation slightly increased the rate of copper uptake and cleaning leaves did not affect its ability to uptake copper. The main mechanism for copper removal by poplar leaves is most probably adsorption. Other mechanisms, such as complexation, may play a minor role as well. Intrapore diffusion is thought to be the rate-limiting step for the interaction between poplar leaves and copper ions.

773.1.#.t: Revista Internacional de Contaminación Ambiental; Vol. 17, Núm. 3 (2001); 123-127

773.1.#.o: https://www.revistascca.unam.mx/rica/index.php/rica/index

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022.#.#.a: ISSN impreso: 0188-4999

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300.#.#.a: Páginas: 123-127

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handle: 3d53b3d68f1f5fb4

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Artículo

Removal of dissolved copper from polluted water using plant leaves. ii. effects of copper concentration, plant leaves, competing ions and other factors

Al Subu, M. M.; Salim, R.; Bradc, H.; Swaileh, K. M.

Centro de Ciencias de la Atmósfera, UNAM, publicado en Revista Internacional de Contaminación Ambiental, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Al Subu, M. M., et al. (2001). Removal of dissolved copper from polluted water using plant leaves. ii. effects of copper concentration, plant leaves, competing ions and other factors. Revista Internacional de Contaminación Ambiental; Vol. 17, Núm. 3, 2001; 123-127. Recuperado de https://repositorio.unam.mx/contenidos/4122013

Descripción del recurso

Autor(es)
Al Subu, M. M.; Salim, R.; Bradc, H.; Swaileh, K. M.
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Removal of dissolved copper from polluted water using plant leaves. ii. effects of copper concentration, plant leaves, competing ions and other factors
Fecha
2011-06-06
Resumen
Factors affecting copper removal from polluted water by poplar (Populus euphratica) leaves were investigated and a mechanism for copper removal was suggested. Increasing the amount of leaves from 5 to 25 g/L increased the rate and hence the amount of copper removed. Increasing the concentration of copper in solution from 2 to 20 mg/L caused a corresponding increase in copper uptake per unit weight of leaves at a constant leaf concentration of 20 g/L. The uptake of copper ions by poplar leaves was found to be noticeably affected by the presence of other metal ions. The effect of these ions could be dependent on the relative affinity of leaves to these ions and copper as well as to pH. Depending on the initial concentration, the presence of the chelating agent EDTA in the solution considerably reduced the rate and amount of copper uptake. Fresh leaves were found to uptake much less copper thandry leaves. Rough-crushing or fme-grinding of leaves slightly affected copper uptake. Agitation slightly increased the rate of copper uptake and cleaning leaves did not affect its ability to uptake copper. The main mechanism for copper removal by poplar leaves is most probably adsorption. Other mechanisms, such as complexation, may play a minor role as well. Intrapore diffusion is thought to be the rate-limiting step for the interaction between poplar leaves and copper ions.
Tema
Poplar leaves, populus euphratica, copper uptake, polluted water, adsorption
Idioma
spa
ISSN
ISSN impreso: 0188-4999

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