scholarly journals Efficient ammonium removal from aquatic environments by Acinetobacter calcoaceticus STB1 immobilized on an electrospun cellulose acetate nanofibrous web

2013 ◽  
Vol 15 (9) ◽  
pp. 2566 ◽  
Author(s):  
Omer Faruk Sarioglu ◽  
Oncay Yasa ◽  
Asli Celebioglu ◽  
Tamer Uyar ◽  
Turgay Tekinay
Keyword(s):  
Cellulose Acetate ◽  
Acinetobacter Calcoaceticus ◽  
Aquatic Environments ◽  
Ammonium Removal

scholarly journals Porous Cellulose Acetate/Block Copolymer Membranes for the Recovery of Polyphenolic Compounds from Aquatic Environments

ACS Omega ◽  
2022 ◽  
Author(s):  
José L. Ramírez-Colón ◽  
Xaimara Santiago-Maldonado ◽  
Simara Laboy-López ◽  
Pedro O. Méndez Fernández ◽  
Marielys Torres-Díaz ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Cellulose Acetate ◽  
Polyphenolic Compounds ◽  
Aquatic Environments

Ammonium removal from aqueous solutions by reverse osmosis using cellulose acetate membranes

Desalination ◽  
2005 ◽  
Vol 184 (1-3) ◽  
pp. 149-155 ◽  
Author(s):  
Antonio Bódalo ◽  
José-Luis Gómez ◽  
Elisa Gómez ◽  
Gerardo León ◽  
María Tejera
Keyword(s):  
Aqueous Solutions ◽  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Ammonium Removal ◽  
Cellulose Acetate Membranes

scholarly journals AMMONIA-REMOVAL EFFICIENCY OF A NOVEL ACINETOBACTER CALCOACETICUS STRAIN ISOLATED FROM INDUSTRIAL WASTEWATER OF NINH BINH COAL NITROGENOUS FERTILIZER PLANT

2018 ◽  
Vol 56 (2) ◽  
pp. 216
Author(s):  
Do Bien Cuong ◽  
Hoang Ngoc Han ◽  
Pham Van Thiem
Keyword(s):  
Acinetobacter Calcoaceticus ◽  
Ammonia Removal ◽  
16S Rrna Sequence ◽  
Ammonium Removal ◽  
Nitrogenous Fertilizer ◽  
Isolation And Characterization ◽  
Solid Media ◽  
Novel Bacterium ◽  
Industrial Zones

Ammonium removal from wastewaters has recently became a major concern of fertilizer manufacturers and industrial zones in Vietnam. Using aerobic ammonium remover may be a appreciate solution for reduction of treatment cost. This study describes the isolation and characterization of a novel bacterium for ammonium removal under aerobic conditions. Twelve ammonium remover strains were isolated from wastewater of a local fertilizer industry. The isolated strains were initially screened using solid media for their nitrifying activities. Among them two of the bacteria displayed the highest removal of ammonium without much accumulation of nitrite and nitrate. The isolates were identified as Acinetobacter based on biochemical characteristis and 16S rRNA sequence. One of these two isolates, Acinetobacter calcoaceticus A8 strain, showed 88% ammonium removal from industrial fertilizer wastewater.

Cellulose Acetate Reverse Osmosis Membrane Structure

1972 ◽  
Vol 30 ◽  
pp. 528-529
Author(s):  
H. K. Plummer ◽  
E. Eichen ◽  
C. D. Melvin
Keyword(s):  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Membrane Structure ◽  
Freeze Drying ◽  
Dense Layer ◽  
Water Removal ◽  
Reverse Osmosis Membrane ◽  
Correct Interpretation ◽  
Electron Image ◽  
Scanning Electron

Much of the work reported in the literature on cellulose acetate reverse osmosis membranes has raised new and important questions with regard to the dense or “active” layer of these membranes. Several thickness values and structures have been attributed to the dense layer. To ensure the correct interpretation of the cellulose acetate structure thirteen different preparative techniques have been used in this investigation. These thirteen methods included various combinations of water substitution, freeze drying, freeze sectioning, fracturing, embedding, and microtomy techniques with both transmission and scanning electron microscope observations.It was observed that several factors can cause a distortion of the structure during sample preparation. The most obvious problem of water removal can cause swelling, shrinking, and folds. Improper removal of embedding materials, when used, can cause a loss of electron image contrast and, or structure which could hinder interpretation.

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