Optimization of retention of phosphate species onto a novel bentonite–alum adsorbent system

2018 ◽  
Vol 9 ◽  
pp. 1-15 ◽  
Author(s):  
Harsha Mahadevan ◽  
Vinu V. Dev ◽  
K. Anoop Krishnan ◽  
Ancy Abraham ◽  
O.C. Ershana
Keyword(s):  
Phosphate Species ◽  
Adsorbent System

Multi- and In-Stabilities in Gas Partitioning Between Nanoporous Materials and Rubber Balloons

2018 ◽  
Author(s):  
Cory Simon ◽  
carlo carraro
Keyword(s):  
Thermodynamic Equilibrium ◽  
Stable States ◽  
Temperature Changes ◽  
Adsorbed Gas ◽  
Rubber Balloon ◽  
Balloon Size ◽  
Metal Organic ◽  
Balloon Experiment ◽  
Adsorbent System ◽  
Balloon System

<div>In the two-balloon experiment, two rubber balloons are connected and allowed to exchange gas. Owing to the non-monotonic relationship between the radius of the balloon and the pressure of gas inside of it, the two-balloon system presents multi- and in-stabilities.</div><div><br></div><div>Herein, we consider a two-adsorbent system, where two different adsorbents are allowed to exchange gas. We show that, for rigid adsorbents, the thermodynamic equilibrium state is unique.</div><div><br></div><div>Then, we consider an adsorbent-balloon system, where an adsorbent exchanges gas with a rubber balloon. This system can exhibit multiple states at thermodynamic equilibrium-- two (meta)stable and one unstable. The size of the balloon, pressure of gas in the balloon, and partitioning of gas between the adsorbent and the balloon differ among the equilibrium states. Temperature changes and the addition/removal of gas into/from the adsorbent-balloon system can induce catastrophe bifurcations and show hysteresis. Furthermore, the adsorbent-balloon system exhibits a critical temperature where, when approached from below, the discrepancy of balloon size between the two (meta)stable states decreases and, beyond, bistability is impossible.</div><div><br></div><div>Practically, our findings preclude multiple partitions of adsorbed gas in rigid mixed-linker metal-organic frameworks and may inspire new soft actuator and sensor designs.</div>

Removal of Phosphate Species from Solution by Adsorption onto Red and Grey Ceramic Clay Used as Adsorbent

2014 ◽  
Vol 675-677 ◽  
pp. 434-439
Author(s):  
Yi Liang Yao ◽  
Chang Yu Lu ◽  
Wie Sheng Guan ◽  
Hai Gang Gou ◽  
Wei Huang
Keyword(s):  
Waste Water ◽  
Low Cost ◽  
Phosphate Removal ◽  
Liquid Ratio ◽  
Phosphate Species ◽  
Water Problems ◽  
And Control ◽  
Water Eutrophication ◽  
Clay Materials ◽  
Ceramic Clay

Waste water is becoming more and more around us and phosphates exit everywhere in waste water. Eutrophication, the most common phenomenon caused by phosphate, can lead to water problems. Therefore, searching suitable materials to remove and control phosphate in waste water is of great significance. In this reach project, the method of adsorption was chosen to remove phosphate and two kinds of ceramic clay materials which were low cost and easily available as adsorbent for adsorption were used for phosphate removal. According to the removal efficiency of phosphate removal, temperature, solid to liquid ratio, the original concentration of phosphate and experiment time were studied in the experiments.

scholarly journals Effect of Aluminum Phosphate Species as New Matrix Component on Cracking Performance of FCC Catalyst with or without ZSM-5 Additive

2016 ◽  
Vol 59 (3) ◽  
pp. 104-108 ◽  
Author(s):  
Yuji SAKA ◽  
Norihito CHIYODA ◽  
Katsuya WATANABE ◽  
Satoshi INAGAKI ◽  
Yoshihiro KUBOTA
Keyword(s):  
Aluminum Phosphate ◽  
Matrix Component ◽  
Fcc Catalyst ◽  
Cracking Performance ◽  
Phosphate Species

Phosphate Species up to 70% Mass Ratio for Enhanced Pseudocapacitive Properties

Small ◽  
2018 ◽  
Vol 14 (50) ◽  
pp. 1803811 ◽  
Author(s):  
Shaofeng Li ◽  
Chang Yu ◽  
Ying Yang ◽  
Xuedan Song ◽  
Shuangming Chen ◽  
...  
Keyword(s):  
Mass Ratio ◽  
Phosphate Species
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