Adsorption of Cr(VI) from aqueous solution by chemically modified natural cellulose

2015 ◽  
Vol 57 (43) ◽  
pp. 20368-20376 ◽  
Author(s):  
Hongxiang Zhu ◽  
Qiaoping Kong ◽  
Xuejuan Cao ◽  
Hui He ◽  
Jin Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chemically Modified ◽  
Natural Cellulose

Removal of tetramethyl thiuram disulphide from aqueous solution by chemically modified bentonite

2007 ◽  
Vol 42 (2) ◽  
pp. 105-112 ◽  
Author(s):  
E. González Pradas ◽  
M. Villafranca Sánchez ◽  
A. Valverde Garcia ◽  
M. Socias Viciana ◽  
F. del Rey Bueno ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Modified Bentonite ◽  
Chemically Modified

scholarly journals Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater

2014 ◽  
Vol 20 (4) ◽  
pp. 491-501
Author(s):  
Pei Qing ◽  
Chen Hui ◽  
Zhou Ming ◽  
Lu Qin ◽  
Ma Qiang
Keyword(s):  
Sodium Chloride ◽  
Membrane Fouling ◽  
Aerobic Treatment ◽  
Treatment Efficiency ◽  
High Concentration ◽  
Low Concentration ◽  
Chemically Modified ◽  
Natural Cellulose ◽  
Salinity Shock ◽  
Filtration Flux

CMC is chemically modified from natural cellulose and widely applied in various industries. CMC wastewater consists mainly of sodium glycolate, sodium chloride and water. With extremely high COD and salinity, high concentration CMC wastewater can?t be biologically treated, but with COD and salinity around 15000 mg/L and 30000 mg/L respectively, low concentration CMC wastewater can be aerobically treated. In a CMC factory, the treatment of low concentration wastewater with aerobic MBR was successful except for one serious problem: poor filterability. Two trial solutions: adding micronutrients and applying MBBR were expected to improve the filterability. In the experiment, adding micronutrients was achieved by mixing filtered natural water into the wastewater, rather than dosing chemicals into it. The treatment efficiency of both solutions was close, but adding micronutrients showed distinguished performance in improving filterability, which includes higher filtration flux and slighter membrane fouling. Adding micronutrients also effectively improved the filterability under severe salinity shock.

scholarly journals Removal of Chromium (VI) from Aqueous Solution Using Chemically-Modified Sweet Lime (Citrus limetta) Peels as Adsorbent

2017 ◽  
Vol 36 ◽  
pp. 82-95
Author(s):  
Devi Lal Adhikari ◽  
Ram Lochan Aryal ◽  
Sitaram Bhattarai ◽  
Surendra Kumar Gautam ◽  
Bhoj Raj Poudel
Keyword(s):  
Aqueous Solution ◽  
Full Text ◽  
Chemically Modified ◽  
Chromium Vi ◽  
Sweet Lime ◽  
Citrus Limetta

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