scholarly journals THE ADSORPTION TECHNOLOGY REMOVAL OF THE CADMIUM COMPOUNDS FROM SEWAGE

2020 ◽  
Vol 2018 (1) ◽  
pp. 3-7
Author(s):  
Mariya Baranova ◽  
Evgeniya Chernysheva ◽  
Nikolay Korchevin
Keyword(s):  
Process Kinetic ◽  
Ph Influence ◽  
Cadmium Compounds ◽  
Model Solutions ◽  
Adsorption Technology ◽  
Sodium Polysulfide

The possibility of using lignin based sorbents for removal of the cadmium compounds from sewage is researched. The sorbents were obtained by polycondensation of chlorlignin, wastewaresepichlorgidrin production and sodium polysulfide. The data about removal of cadmium from model solutions: the pH influence and process kinetic are discussed.

THE ADSORPTION TECHNOLOGY REMOVAL OF THE CADMIUM COMPOUNDS FROM SEWAGE

2018 ◽  
Vol 1 (1) ◽  
pp. 3-7
Author(s):  
M.A. Baranova ◽  
◽  
E.A. Chernysheva ◽  
N.A. Korchevin ◽  
◽  
...  
Keyword(s):  
Cadmium Compounds ◽  
Adsorption Technology

scholarly journals Concentrating Model Solutions and Fruit Juices Using CO2 Hydrate Technology and Its Quantitative Effect on Phenols, Carotenoids, Vitamin C and Betanin

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 626
Author(s):  
Alexander Rudolph ◽  
Amna El-Mohamad ◽  
Christopher McHardy ◽  
Cornelia Rauh
Keyword(s):  
Vitamin C ◽  
Food Production ◽  
Bubble Column ◽  
Hydrate Formation ◽  
Fruit Juices ◽  
Bubble Column Reactor ◽  
High Concentration ◽  
Model Solutions ◽  
Concentration Potential ◽  
Concentration Methods

Fruits have an important economic impact in the context of plant-based food production. The consumption of fruit juices, mostly produced from concentrates, is particularly noteworthy. Conventional concentration methods do not always enable a sustainable and gentle concentration. The innovative gas hydrate technology addresses this point with its energy-saving, gentle character, and high concentration potential. In this study, the concentration of fruit juices and model solutions using CO2 hydrate technology was investigated. To find a suitable operating point for hydrate formation in the used bubble column, the hydrate formation in a water–sucrose model solution was evaluated at different pressure and temperature combinations (1, 3, 5 °C and 32.5, 37.5, 40 bar). The degrees of concentration indicate that the bubble column reactor operates best at 37.5 bar and 3 °C. To investigate the gentle processing character of the hydrate technology, its quantitative effects on vitamin C, betanin, polyphenols, and carotenoids were analyzed in the produced concentrates and hydrates via HPLC and UV/VIS spectrophotometry. The results for fruit juices and model solutions imply that all examined substances are accumulated in the concentrate, while only small amounts remain in the hydrate. These amounts can be related to an inefficient separation process.

First Gewald reaction ignited by sodium polysulfide: greener ultrasound-promoted synthesis of substituted 2-aminothiophenes in the absence of catalyst

2013 ◽  
Vol 34 (5) ◽  
pp. 458-463 ◽  
Author(s):  
Chengyuan Liang ◽  
Dong Lei ◽  
Xiuzhen Wang ◽  
Qingqing Zhang ◽  
Qizheng Yao
Keyword(s):  
Gewald Reaction ◽  
Sodium Polysulfide

The effect of ?-irradiation on the non-enzymatic browning reaction in the aqueous model solutions

2005 ◽  
Vol 92 (2) ◽  
pp. 357-363 ◽  
Author(s):  
S OH ◽  
Y LEE ◽  
J LEE ◽  
M KIM ◽  
H YOOK ◽  
...  
Keyword(s):  
Enzymatic Browning ◽  
Browning Reaction ◽  
Model Solutions

Removal of nitrate and COD from wastewater using denitrification process: kinetic, optimization, and statistical studies

2013 ◽  
Vol 16 (2) ◽  
pp. 291-301 ◽  
Author(s):  
Sanak Ray ◽  
Ayusman Mohanty ◽  
S. S. Mohanty ◽  
Snehasish Mishra ◽  
G. Roy Chaudhury
Keyword(s):  
Process Kinetic ◽  
Statistical Studies ◽  
Denitrification Process
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