Obtaining polymeric composite membranes from lignocellulosic components of sugarcane bagasse for use in wastewater treatment

2011 ◽  
Vol 27 (1-3) ◽  
pp. 66-71 ◽  
Author(s):  
Simone Coelho Nakanishi ◽  
Adilson Roberto Gonçalves ◽  
George Rocha ◽  
Maria de Lourdes Ballinas ◽  
Guillermo Gonzalez
Keyword(s):  
Wastewater Treatment ◽  
Sugarcane Bagasse ◽  
Polymeric Composite ◽  
Composite Membranes ◽  
Polymeric Composite Membranes

Smart polymeric composite membranes for wastewater treatment

2021 ◽  
pp. 313-350
Author(s):  
Abdul Hai ◽  
K. Rambabu ◽  
Bharath Govindan ◽  
Fawzi Banat ◽  
Mu. Naushad
Keyword(s):  
Wastewater Treatment ◽  
Polymeric Composite ◽  
Composite Membranes ◽  
Polymeric Composite Membranes

Use of Lignocellulosic Components of Sugarcane Bagasse to Obtaining Polymeric Composite Membranes

2010 ◽  
Vol 123-125 ◽  
pp. 1203-1206 ◽  
Author(s):  
Simone Coelho Nakanishi ◽  
Adilson Roberto Gonçalves ◽  
George J.M. Rocha ◽  
Maria de Lourdes Ballinas ◽  
Guillermo Gonzalez
Keyword(s):  
Cellulose Acetate ◽  
Sugarcane Bagasse ◽  
Natural Fiber ◽  
Polymeric Composite ◽  
Composite Membranes ◽  
Effluent Treatment ◽  
Retention Capacity ◽  
Metal Retention ◽  
Cellulose Pulp ◽  
Polymeric Composite Membranes

Currently, several research groups and industries are studying applications for the residues from agribusiness, other than burning them. Thinking about a better use for the sugarcane bagasse, this study aims to obtain membranes of cellulose acetate composite with oxidized lignin, both isolated from sugarcane bagasse. Thus, we obtain a product with higher commercial value, from a natural fiber residue from agribusiness, which has applications in water and effluent treatment, and further contributes to the maintenance of the environment. Macromolecular components of bagasse (hemicellulose, cellulose and lignin) were separated by applying a steam explosion pre-treatment for the removal of the hemicellulose, a basic treatment with NaOH to separate the lignin and obtain crude cellulose pulp. This pulp was bleached and acetylated, and subsequently membranes of cellulose acetate were synthesized, incorporating oxidized lignin to these membranes in order to increase the metal retention capacity of these membranes. The acetylated material was analyzed by IR, confirming acetylation. Degree of substitution was determined by volumetry, yielding a value of 1.7, featuring a diacetate. The synthesized membranes were analyzed by SEM, showing a dense structure. Tests were conducted to evaluate metal retention, and the average capacity of removal was 15% Cu+2 in steady-state experiments. Retention capacity in membranes is 20 times higher than the retention using chromatographic columns separation.

scholarly journals Microporous polymeric composite membranes with advanced film properties: pore intercalation yields excellent CO2 separation performance

2018 ◽  
Vol 6 (45) ◽  
pp. 22472-22477 ◽  
Author(s):  
Ali K. Sekizkardes ◽  
Victor A. Kusuma ◽  
Joshua S. McNally ◽  
David W. Gidley ◽  
Kevin Resnik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gas Transport ◽  
Polymeric Composite ◽  
Composite Membranes ◽  
Co2 Separation ◽  
Separation Performance ◽  
Film Properties ◽  
Blend Membranes ◽  
Polymeric Composite Membranes

PIM-1 based blend membranes with advanced gas transport and mechanical properties.

Structure and electrochemical properties of polymeric composite membranes with a selective layer

2011 ◽  
Vol 47 (4) ◽  
pp. 461-469
Author(s):  
L. I. Kravets ◽  
N. E. Lizunov ◽  
A. Yu. Meshalkin ◽  
S. V. Robu ◽  
A. M. Andriesh ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Polymeric Composite ◽  
Composite Membranes ◽  
Selective Layer ◽  
Polymeric Composite Membranes
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