A review on adsorbents for the remediation of wastewater: Antibacterial and adsorption study

2021 ◽  
pp. 106907
Author(s):  
Aaron Albert Aryee ◽  
Farid Mzee Mpatani ◽  
Runping Han ◽  
Xinxin Shi ◽  
Lingbo Qu
Keyword(s):  
Adsorption Study

Equilibrium and Kinetic Adsorption Study of the Removal of Orange-G Dye Using Carbon Mesoporous Material

2012 ◽  
Vol 27 (6) ◽  
pp. 660-666 ◽  
Author(s):  
Arzani KAVEH ◽  
Ghaderi Ashtiani BEHDAD ◽  
Aboutorab Kashi AMIRHOSSEIN Haji
Keyword(s):  
Mesoporous Material ◽  
Adsorption Study ◽  
Kinetic Adsorption ◽  
Orange G

Adsorption Study of Main Gas Products from Water Radiolysis on 4A Zeolite by Numerical Simulations

2020 ◽  
pp. 1-7
Author(s):  
Joharimanitra Randrianandraina ◽  
Manuel Grivet ◽  
Christophe Ramseyer ◽  
Jean-Emmanuel Groetz ◽  
Bruno Cardey ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Water Radiolysis ◽  
Adsorption Study ◽  
4A Zeolite ◽  
Gas Products

scholarly journals Selectivity of the Lindlar catalyst in alkyne semi-hydrogenation: a direct liquid-phase adsorption study

2021 ◽  
Author(s):  
Nikolay Cherkasov ◽  
Dmitry Murzin ◽  
C. Richard A. Catlow ◽  
Arunabhiram Chutia
Keyword(s):  
Liquid Phase ◽  
Adsorption Study ◽  
Liquid Phase Adsorption ◽  
Lindlar Catalyst ◽  
Hydrogenation Selectivity

We study the alkyne semi-hydrogenation selectivity over Pd and Lindlar catalyst with liquid-phase adsorption. The results indicate that there are strongly-adsorbing alkyne and alkene sites; alkenes react non-selectively over the...

scholarly journals Utilization of galactomannan from spent coffee grounds as coagulant aid to treat synthetic Congo red wastewater

2021 ◽  
Author(s):  
Hans Kristianto ◽  
Sekar Astari Saraswati ◽  
Susiana Prasetyo ◽  
Asaf K Sugih
Keyword(s):  
Congo Red ◽  
Synthetic Wastewater ◽  
Isotherm Models ◽  
Spent Coffee Grounds ◽  
Adsorption Study ◽  
Natural Coagulant ◽  
Coffee Grounds ◽  
Bet Isotherm ◽  
Inorganic Chemical ◽  
Promising Source

Abstract Over the last few years, there is a significant growth in research exploring natural based coagulant due to its various benefits to decrease or even substitute the usage of inorganic chemical coagulants. Polysaccharide based coagulant and coagulant aid is a promising source for this purpose, due to its abundance. In this study, we reported utilization of galactomannan extracted from spent coffee grounds as natural coagulant aid in coagulation of Congo red synthetic wastewater. The coagulation was done at fixed dosage of FeCl3 (160 mg/L) and pH of 6. The effect of galactomannan as coagulant aid was observed by varying galactomannan dosage (0-140 mg/L) and Congo red concentration (20–70 mg/L). It was found that galactomannan as coagulant aid could increase the removal of Congo red, around 30–90% removal, depends on Congo red concentration, compared FeCl3 only (0–65%). The coagulation adsorption study was also investigated using Langmuir, Freundlich, and Brunauer – Emmet – Teller (BET) isotherm models. It was found that Congo red coagulation using FeCl3 only was following Langmuir isotherm, indicating monolayer – homogenous formation during the coagulation. On the other hand, with the presence of galactomannan the coagulation was best described by BET isotherm, indicating multilayer – heterogeneous adsorption, possibly due to interparticle bridging of galactomannan during colloid aggregation. The findings in this study suggest synergistic effect of galactomannan and FeCl3 in the coagulation process and proved potential of galactomannan from spent coffee grounds as natural coagulant aid.

scholarly journals Adsorption Study for Trifluralin on Iraqi ? –Alumina

2012 ◽  
Vol 9 (1) ◽  
pp. 153-159 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Adsorption Isotherm ◽  
Aqueous Solutions ◽  
Contact Time ◽  
Adsorption Process ◽  
Kinetic Equations ◽  
Adsorption Study ◽  
Adsorption Capacities ◽  
Experimental Parameters ◽  
Freundlich Adsorption Isotherm ◽  
Equilibrium Adsorption Isotherm

Equilibrium adsorption isotherm for the removal of trifluralin from aqueous solutions using ? –alumina clay has been studied. The result shows that the isotherms were S3 according Giels classification. The effects of various experimental parameters such as contact time, adsorbent dosage, effect of pH and temperature of trifluralin on the adsorption capacities have been investigated. The adsorption isotherms were obtained by obeying freundlich adsorption isotherm with (R2 = 0.91249-0.8149). The thermodynamic parameters have been calculated by using the adsorption process at five different temperature, the values of ?H, ?G and ?S were (_1.0625) kj. mol-1, (7.628 - 7.831) kj.mol-1 and (_2.7966 - _2.9162) kg. k-1. mol-1 respectively. The kinetic study of adsorption process has been studied depending on three kinetic equations: 1- Allergen equation 2- Morris –weber eguation 3- Reichenberg eguation. In general, the result shows the isotherm were on ?- alumina according to Giels classification.? –alumina and thermodynamic

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