Tags

Type your tag names separated by a space and hit enter

Biosorption of aquatic cadmium(II) by unmodified rice straw.
Bioresour Technol. 2012 Jun; 114:20-5.BT

Abstract

Cadmium is the most common toxic metal threatening safe rice supply. Rice straw has the potential to remove Cd from large-scale effluent contaminated by heavy metals since it exhibited a short biosorption equilibrium time of 5 min, high biosorption capacity (13.9 mg g(-1)) and high removal efficiency at a pH range of 2.0-6.0. The main Cd biosorption mechanism was Cd(2+) ion exchange with K(+), Na(+), Mg(2+) and Ca(2+), together with chelation with functional groups such as C=C, CO, OH and carboxylic acids. When 0.5% (w/v) rice straw was exposed to 50 mg mL(-1) CdSO(4) solution with shaking at 150 r min(-1) for 3h, about 80% of the aquatic Cd was absorbed and the Cd content in rice straw reached 8-10 mg g(-1), suggesting that the metal-enriched rice straw could become high quality bio-ore by virtue of the industrial mining grade of its metal content and easy metal recovery.

Links

Publisher Full Text

Authors+Show Affiliations

Ding Y
College of Life Sciences, Capital Normal University, Beijing 100048, China.
Jing D
No affiliation info available
Gong H
No affiliation info available
Zhou L
No affiliation info available
Yang X
No affiliation info available

MeSH

AbsorptionCadmiumComputer SimulationModels, ChemicalOryzaPlant Components, AerialUltrafiltrationWaterWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22445266

Citation

Ding, Yang, et al. "Biosorption of Aquatic cadmium(II) By Unmodified Rice Straw." Bioresource Technology, vol. 114, 2012, pp. 20-5.
Ding Y, Jing D, Gong H, et al. Biosorption of aquatic cadmium(II) by unmodified rice straw. Bioresour Technol. 2012;114:20-5.
Ding, Y., Jing, D., Gong, H., Zhou, L., & Yang, X. (2012). Biosorption of aquatic cadmium(II) by unmodified rice straw. Bioresource Technology, 114, 20-5. https://doi.org/10.1016/j.biortech.2012.01.110
Ding Y, et al. Biosorption of Aquatic cadmium(II) By Unmodified Rice Straw. Bioresour Technol. 2012;114:20-5. PubMed PMID: 22445266.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosorption of aquatic cadmium(II) by unmodified rice straw. AU - Ding,Yang, AU - Jing,Debing, AU - Gong,Huili, AU - Zhou,Lianbi, AU - Yang,Xiaosong, Y1 - 2012/02/16/ PY - 2011/09/13/received PY - 2012/01/17/revised PY - 2012/01/19/accepted PY - 2012/3/27/entrez PY - 2012/3/27/pubmed PY - 2012/8/30/medline SP - 20 EP - 5 JF - Bioresource technology JO - Bioresour Technol VL - 114 N2 - Cadmium is the most common toxic metal threatening safe rice supply. Rice straw has the potential to remove Cd from large-scale effluent contaminated by heavy metals since it exhibited a short biosorption equilibrium time of 5 min, high biosorption capacity (13.9 mg g(-1)) and high removal efficiency at a pH range of 2.0-6.0. The main Cd biosorption mechanism was Cd(2+) ion exchange with K(+), Na(+), Mg(2+) and Ca(2+), together with chelation with functional groups such as C=C, CO, OH and carboxylic acids. When 0.5% (w/v) rice straw was exposed to 50 mg mL(-1) CdSO(4) solution with shaking at 150 r min(-1) for 3h, about 80% of the aquatic Cd was absorbed and the Cd content in rice straw reached 8-10 mg g(-1), suggesting that the metal-enriched rice straw could become high quality bio-ore by virtue of the industrial mining grade of its metal content and easy metal recovery. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/22445266/Biosorption_of_aquatic_cadmium_II__by_unmodified_rice_straw_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(12)00134-4 DB - PRIME DP - Unbound Medicine ER -