Utilization of biomass waste for activated carbon production by steam gasification in a rotary reactor: experimental and theoretical approach

2020 ◽  
Author(s):  
Shanhui Zhao ◽  
Linghai Chen
Keyword(s):  
Activated Carbon ◽  
Theoretical Approach ◽  
Steam Gasification ◽  
Biomass Waste ◽  
Carbon Production ◽  
Rotary Reactor

A statistical approach to optimize the activated carbon production from Kraft lignin based on conventional and microwave processes

2020 ◽  
Vol 308 ◽  
pp. 110485
Author(s):  
Tayra R. Brazil ◽  
Maraísa Gonçalves ◽  
Mauro S.O. Junior ◽  
Mirabel C. Rezende
Keyword(s):  
Activated Carbon ◽  
Statistical Approach ◽  
Kraft Lignin ◽  
Carbon Production

scholarly journals Utilization of Non-Living Microalgae Biomass from Two Different Strains for the Adsorptive Removal of Diclofenac from Water

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1401 ◽  
Author(s):  
Ricardo Coimbra ◽  
Carla Escapa ◽  
Nadyr Vázquez ◽  
Guillermo Noriega-Hevia ◽  
Marta Otero
Keyword(s):  
Activated Carbon ◽  
Experimental Conditions ◽  
Biomass Waste ◽  
Adsorptive Removal ◽  
Microalgae Biomass ◽  
Langmuir Isotherm Model ◽  
Pseudo Second Order ◽  
Equilibrium Concentrations ◽  
Different Strains ◽  
Synechocystis Sp

In the present work, the adsorptive removal of diclofenac from water by biosorption onto non-living microalgae biomass was assessed. Kinetic and equilibrium experiments were carried out using biomass of two different microalgae strains, namely Synechocystis sp. and Scenedesmus sp. Also, for comparison purposes, a commercial activated carbon was used under identical experimental conditions. The kinetics of the diclofenac adsorption fitted the pseudo-second order equation, and the corresponding kinetic constants indicating that adsorption was faster onto microalgae biomass than onto the activated carbon. Regarding the equilibrium results, which mostly fitted the Langmuir isotherm model, these pointed to significant differences between the adsorbent materials. The Langmuir maximum capacity (Qmax) of the activated carbon (232 mg∙g−1) was higher than that of Scenedesmus sp. (28 mg∙g−1) and of Synechocystis sp. (20 mg∙g−1). In any case, the Qmax values determined here were within the values published in the recent scientific literature on the utilization of different adsorbents for the removal of diclofenac from water. Still, Synechocystis sp. showed the largest KL fitted values, which points to the affinity of this strain for diclofenac at relative low equilibrium concentrations in solution. Overall, the results obtained point to the possible utilization of microalgae biomass waste in the treatment of water, namely for the adsorption of pharmaceuticals.

Buriti palm stem as a potential renewable source for activated carbon production

2015 ◽  
Vol 3 ◽  
pp. 28-34 ◽  
Author(s):  
Robson Carlos de Andrade ◽  
Cristiane Freitas de Almeida ◽  
Patrícia Hatsue Suegama ◽  
Eduardo José de Arruda ◽  
Pedro Augusto Arroyo ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Renewable Source ◽  
Carbon Production

scholarly journals Optimisation of durian peel based activated carbon preparation conditions for dye removal

2013 ◽  
Vol 16 (1) ◽  
pp. 22-31
Author(s):  
Phung Thi Kim Le ◽  
Kien Anh Le
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Surface Area ◽  
Dye Removal ◽  
Activated Carbons ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Impregnation Ratio ◽  
Carbon Production ◽  
Removal Capacity

Agricultural wastes are considered to be a very important feedstock for activated carbon production as they are renewable sources and low cost materials. This study present the optimize conditions for preparation of durian peel activated carbon (DPAC) for removal of methylene blue (MB) from synthetic effluents. The effects of carbonization temperature (from 673K to 923K) and impregnation ratio (from 0.2 to 1.0) with potassium hydroxide KOH on the yield, surface area and the dye adsorbed capacity of the activated carbons were investigated. The dye removal capacity was evaluated with methylene blue. In comparison with the commercial grade carbons, the activated carbons from durian peel showed considerably higher surface area especially in the suitable temperate and impregnation ratio of activated carbon production. Methylene blue removal capacity appeared to be comparable to commercial products; it shows the potential of durian peel as a biomass source to produce adsorbents for waste water treatment and other application. Optimize condition for preparation of DPAC determined by using response surface methodology was at temperature 760 K and IR 1.0 which resulted the yield (51%), surface area (786 m2/g), and MB removal (172 mg/g).

Sign in / Sign up

Export Citation Format

Share Document