The ASTM C837-99 Methylene blue test method was used to measure the sample's specific surface area and cation exchange capacity. The raw sample had a specific area of 147.1 m 2 /g and a cation exchange capacity of 18.78 meq/100 g, respectively. The elimination of impurities such as carbonates, water, hydroxyl groups, and other organic compounds during …
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According to the method ASTM- D5890, 2 g of hydrophilic bentonite were placed into a graduated cylinder, and 100 mL of water were slowly added avoiding any bentonite dispersion. After 24 h the increase of bentonite volume was recorded. The same procedure was applied to the hydrophobic bentonite but with oil instead of water.
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Polymer–bentonite composites as emerging adsorbents for water treatment. Bentonite/modified bentonite composites show excellent adsorption performance. Composites …
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ENVIRO-SEAL 12 and 30 are natural, granular sodium bentonite (clay) that have exceptionally low permeability and high swelling capacity. They work well as a coagulant for wastewater treatment and has a high affinity for cationic …
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performed using bentonite of the same quality and fineness as that proposed for use. Laboratory permeability testing to determine application rates and liner thickness shall be required for agriculture waste storage. For protection against bentonite dust, personnel on site during bentonite application and mixing shall wear a mask and goggles.
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The schematic configurations of corona electrodes (A), (B), and (C) are assigned for wire-cylinder, needle-plate, and wire-plate modus, respectively, and the coaxial pulsed corona ozone generator (D).
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Due to their cost-effectiveness, low toxicity, and naturally renewable properties, bio-coagulants for water treatment are gaining popularity. In this context, four bio-coagulants were tested for their ability in turbidity reduction in a synthetic bentonite suspension: Opuntia ficus indica (OFI) and Moringa oleifera (MO) seeds, two well-established vegetal materials in the …
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In particular, bentonite plays a crucial role in water-based drilling fluids, commonly known as water-based muds (WBM) (Luckham and Rossi, 1999, Kelessidis et al., 2006, Mahto and Sharma, 2008, Afolabi et al., 2017). The most known Wyoming bentonite (with more than 90% of Mt) shows excellent colloidal and rheological properties in WBM.
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Among the few fields of application, bentonite can be used for the purification of gases [1], the elimination of radioactive elements [2, 3], the elimination of pesticides [4], and the elimination of phenol.
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There is a significant number of studies on wastewater and water treatment sludge from bentonite and bentonite-based materials [18]. On the other hand, the usability of zeolite in water treatment ...
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In the examination of Calcium Bentonite Vs Sodium Bentonite, it becomes evident that these two types of Bentonite clay, each with their unique properties and applications, hold immense significance in numerous industrial, environmental, and health-related sectors.
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After purification and modification, the absorbent aluminum phyllosilicate bentonite clay can be used as an efficient catalyst in various types of catalytic reactions. Moreover, bentonite clay can be applied in various field like drilling, civil engineering, agriculture and water treatment.
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This includes the utilization of bentonite in water and wastewater treatment processes integral to sustainable building practices. With continued research and development, the application techniques of bentonite in modern construction are likely to further evolve, promising a more sustainable and efficient future for the industry.
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Bentonite, however, has been shown to aid in the restoration of biological functions in drought-affected soils. Bentonite's function as a soil moisture retainer is an important consideration. Bentonite acts as a reservoir, trapping water within its layers due to its high water-holding capacity and ability to form a gel-like structure.
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This study provides an in-depth review of bentonite, focusing on its applications in Korea's biomedical and cosmetic sectors. It delves into bentonite's chemical properties, which make it a ...
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Geological disposal is the preferred option for the final storage of high-level nuclear waste and spent nuclear fuel in most countries. The selected host rock may be different in individual national programs for radioactive-waste management and the engineered barrier systems that protect and isolate the waste may also differ, but almost all programs are …
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This study provides an in-depth review of bentonite, focusing on its applications in Korea's biomedical and cosmetic sectors. It delves into bentonite's chemical properties, which make it a valuable resource in various industries, particularly in the health and beauty industries. We discuss bentonite's antimicrobial properties, showcasing its effectiveness against a wide …
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In wastewater treatment, bentonite is used to remove impurities and contaminants from water, making it safer for disposal or reuse. Despite its many benefits, bentonite mining can have negative ...
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A careful search of the literature reveals that a sizable number of reviews have been carried out on this subject. A review conducted by [1] updated information in the literature concerning chemical events and reaction mechanisms involved during the treatment of PW and the attendant consequence of the by-products on the environment. Y. Liu et al. [14] reviewed …
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The preparation and characterization of modify bentonites are the, as a matter of first importance ventures in water treatment by nanotechnology. The most essential methods for the preparation of modify bentonite including heat treatment [47], acid activation [48], treating the cationic surfactants [49], and polymer alteration [50]. The ...
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Bentonite clays (BCs), whether in natural or modified form, have gained enormous potential in wastewater treatment and have been used successfully as a novel and cost-effective bio …
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In this study possibilities of the application of optimum conditions of the adsorption and coagulation treatment with bentonites was explored and optimized and effects of the treatment were...
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adsorption and coagulation treatment with bentonites was explored and optimized and effects of the treatment were focused on, water contaminated with dispersions of different organic …
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The water molecules that occur between the layers in smectites are called low temperature water which can be driven off by heating from 100 to 150°C (Grim, 1968).It has been shown that the water on the surface between the montmorillonite layers is in a physical state different from liquid water (Low, 1961).A multitude of studies of this water between the layers …
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In the industrial field, bentonite possesses a high commercial value due to its extensive use in a wide range of applications. The availability, low cost, swellability, adsorption capacity, high plasticity, and viscosity of this clay mineral [1] made it a key component in drilling fluids, landfills, papermaking, construction, pharmaceutical, dyes, cosmetics, and water …
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Water treatment is of paramount importance to ensure the availability of clean and safe drinking water. In recent years, clay-based materials have gained significant attention as promising ...
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In municipal water treatment, bentonite powder is added to help clarify water by binding with impurities such as suspended solids, dirt, and organic particles. The bentonite …
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Bentonite in wastewater treatment emerges as a game-changer, harnessing its natural absorption and flocculating properties. This article unfolds the myriad ways in which bentonite transforms wastewater treatment …
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Since ferric tetroxide (Fe3O4) has strong magnetic properties, coating amorphous silica (SiO2) with Fe3O4 nanoparticles can protect the magnetic Fe3O4 particles and form a new magnetic adsorbent with a core–shell structure and small pore size, the strong magnetic properties of which can efficiently solve the problem of the difficult separation and recovery of …
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The modification of the surface chemistry of carbons is considered as a promising and attractive way toward new applications of carbon in many fields. Modification of AC involves oxidation and further grafting onto the AC surface by chemical, electrochemical, plasma and/or microwave method to introduce functional groups (e.g., carboxylic acid ...
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