Modeling Boron Adsorption Isotherms and Envelopes Using the Constant Capacitance Model

2004 ◽  
Vol 3 (2) ◽  
pp. 676-680 ◽  
Author(s):  
Sabine Goldberg
Keyword(s):  
Adsorption Isotherms ◽  
Capacitance Model ◽  
Boron Adsorption

Predicting Boron Adsorption Isotherms by Midwestern Soils using the Constant Capacitance Model

2004 ◽  
Vol 68 (3) ◽  
pp. 795 ◽  
Author(s):  
Sabine Goldberg ◽  
Donald L. Suarez ◽  
Nicholas T. Basta ◽  
Scott M. Lesch
Keyword(s):  
Adsorption Isotherms ◽  
Capacitance Model ◽  
Boron Adsorption

Predicting Boron Adsorption Isotherms by Midwestern Soils using the Constant Capacitance Model

2004 ◽  
Vol 68 (3) ◽  
pp. 795-801 ◽  
Author(s):  
Sabine Goldberg ◽  
Donald L. Suarez ◽  
Nicholas T. Basta ◽  
Scott M. Lesch
Keyword(s):  
Adsorption Isotherms ◽  
Capacitance Model ◽  
Boron Adsorption

Removal of borate by coprecipitation with Mg/Al layered double hydroxide

2015 ◽  
Vol 29 (06n07) ◽  
pp. 1540031 ◽  
Author(s):  
Masashi Kurashina ◽  
Tatsuki Inoue ◽  
Chihiro Tajima ◽  
Eiji Kanezaki
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Layered Double Hydroxide ◽  
Adsorption Isotherms ◽  
Langmuir Model ◽  
Saturation Limit ◽  
Ion Exchange Reaction ◽  
Double Hydroxide ◽  
Boron Adsorption ◽  
Maximum Removal

Borate has been used for various industrial products and excessive dose of boron is harmful to humans. We investigated the removal of borate by direct coprecipitation with Mg / Al layered double hydroxide. In this study, the maximum removal of boron was 90% when Mg 30 mmol and Al 15 mmol at pH = 10 were used for 498 mg/l as B. The boron adsorption isotherms could be fitted to Langmuir model. The calculated constant Ws, saturation limit of boron adsorption, is 25 ± 2 mg/g and it is larger than that of ion exchange reaction (Ws = 15±1 mg/g ).

Experimental Study and Numerical Modeling of Seawater Breakthrough Using Inherent Boron as Tracer

2021 ◽  
Author(s):  
Yanqing Wang ◽  
Xiang Li ◽  
Jun Lu
Keyword(s):  
Adsorption Isotherms ◽  
Concentration Profile ◽  
Oil Recovery ◽  
Boron Concentration ◽  
Produced Water ◽  
Ph Value ◽  
Clay Content ◽  
Reaction Model ◽  
Reservoir Simulator ◽  
Boron Adsorption

Abstract Seawater injection is widely used to maintain the offshore oil reservoir pressure and improve oil recovery. However, injecting seawater into reservoirs can cause many issues such as reservoir souring and scaling, which are tightly related to the seawater breakthrough percentage. Accurately calculating the seawater breakthrough percentage is important for estimating the severity of those problems and further developing corresponding strategies to solve those issues. The validation of using natural ion boron as tracer to calculate seawater breakthrough percentage was investigated. Boron can interact with clays, which can influence the accuracy in seawater breakthrough calculation using boron. Therefore, the interaction between boron and different clays at various conditions were studied, and Freundlich adsorption equation was used to describe the boron adsorption isotherms. Then boron adsorption isotherms were coupled into the reservoir simulator to investigate the boron transportation in porous media, and the results in turn were further analyzed to calculate the accurate seawater breakthrough percentage. Results indicated that boron adsorption by different clays varied. pH value of solution can significantly influence the amount of boron adsorbed. As a result, the boron concentration profile was delayed in coreflood test. The results of reservoir model fit perfectly with that of coreflood test, indicating the validation of boron reaction model. Based on the reservoir simulator results, boron concentration profile in produced water was successfully used to calculate seawater breakthrough percentage by considering the clay content distribution. However, the seawater breakthrough point cannot be calculated by boron as boron concentration is still at the formation level due to boron desorption.

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