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The specific surface area almost tripled (from 95.519 m 2 /g to 346.467 m 2 /g)) by activation with 15% sulfuric acid, with an activation time of 3 hours and a bentonite: acid ratio …
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pyrolysis of lignin over acid-activated bentonite clay. Fuel Process. ... Ja é, P. R. Adsorptive selectivity of organic-cation-modified bentonite for nonionic organic. contaminants. Water Air ...
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Optimised activation of bentonite for toluene adsorption. A Amari. Applied Clay Science 2010. 47 (3) p. . A Khan. SURFACE ACTIVATION OF FULLER'S EARTH (BENTONITE CLAY) USING ORGANIC ACIDS, Major …
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Acid activation was carried out by heating muds prepared from Ca-rich bentonite (CaB), sulfuric acid (H 2 SO 4) and distilled water, yielding various bleaching earths (BEs).The roles of each …
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We aimed to investigate the effectiveness of activated bentonite in OMWW treatment. Batch and column techniques were applied. Crude and treated OMWW samples were characterized; physiochemical parameters, total …
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Acid activation is a chemical treatment traditionally used on clays, typically bentonites in hydrochloric or sulphuric acid, to obtain partly dissolved materials with enhanced …
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In this study, the use of bentonite clay modified by acid activation is proposed. Sulfuric acid, acetic acid (v-acid/w-clay ratio=20, 40 and 60%) and sulfuric/acetic mixtures (1:1 …
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Bentonite is widely used in industrial wastewater treatment due to its large reserves and excellent physicochemical properties. In order to further improve the properties of …
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2.2. Activation of Bentonite Clay. Activation was done based on the study of Samira and Moussa, 2014; 400 mL of hydrochloric acid (2M HCl) (98%, d = 1.98 g/cm 3) solution was added to 50 g …
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Common modifications include acid activation and organic treatment. Acid activation has been used for decades to prepare bleaching earths for adsorbing impurities from edible …
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On the other hand, no significant changes in the organic content were obtained when the silylation reaction was performed on previously acid-activated bentonite. When a …
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A new process for manufacturing organically compounded bentonite was developed successfully based on the organic intercalation and layered structure of bentonite. …
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Activation using acid is a proven and reliable technique that causes a controlled, peripheral dissolution of the clay generating active sites. The layered structure of bentonite …
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These characteristics can be modified by treatment with organic acids, which is the safest method for enhancing the properties of fuller's earth. ... Keywords bentonite, characterization, acid ...
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A low-cost bentonite (ZBent) and acid-activated derived samples have been employed as clay adsorbents to assess their performance for pure CO 2 adsorption in a …
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One step acid activation of bentonite derived adsorbent for the effective remediation of the new generation of industrial pesticides. Sci. Rep. 10, 1–13 (2020).
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Bentonite has always had a multitude of markets and acid-activated bentonite was a traditional product for many decades. ... surface of smectites can be rendered hydrophobic by …
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Acid activation technique was opted for modifying natural bentonite (NB) to enhance the adsorptive removal of CIP from water. The BET surface area analysis revealed that acid-activated bentonite (AAB) possessed more than …
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The SEM images of raw and activated bentonite are shown in Fig. 5. The activated bentonite's surface structure was analyzed using (SEM) to assess the impact of acid thermal …
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The aim of this study is to investigate the oxalic acid activation of bentonites containing different types of smectites, analyse their surface modification as a function of acid concentration and create good quality …
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Studies dedicated to the activation of silicate minerals with organic acids have shown that treatment with organic acids enhances the dissolution of silicate minerals compared to treatment with inorganic ones due to the …
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In this paper, we proposed a facile modification strategy to enhance adsorption performance of bentonite utilizing synergistic acid activation and hydroxyl iron pillaring, by …
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The phosphoric acid used as reference was obtained by continuous stirring at room temperature of phosphoric acid with activated carbon of less than 0.15 mm in size, during a …
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Goshica's (Kosovo) bentonite was activated with three activation methods, namely, acid, alkaline and combined acid-alkaline activation, and their regeneration efficiency of used …
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Major motivation of this research is to increase the adsorption capacity of fuller's earth by modification in its properties by organic acid treatment. Organic acid treatment assures the...
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Download scientific diagram | FT-IR analysis of acetic acid treated clay from publication: Surface activation of fuller's earth (bentonite clay) using organic acids | Specific properties of ...
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The acid, thermal activation bentonite showed the highest surface improvement with a 70 % increase, followed by acid activation bentonite 66 % and thermal activation bentonite 26 %. …
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Bentonite clay is one of the oldest clays that humankind has been using from ancient times as traditional habits and remedies. In recent years researchers have found many applications of …
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Isotherm data related to the adsorption of OTA and ZEA onto organic activated bentonite and humic acid polymer. Minerals Organic Activated Bentonite (OAB) OTA Parameter pH 7.4 pH …
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19 research work is to give the alternative method for activation procedure of bentonite clay and 20 this method should be the safest method for both the labor and equipment used in …
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