Investigating the role of bentonite clay with different soil amendments to minimize the bioaccumulation of heavy metals in Solanum melongena L. under the irrigation of tannery wastewater

A new method of Na-activation of raw bentonite, rich in Ca-montmorillonite, consisting of combined thermal treatment at 200 °C, followed by immediate impregnation with aqueous solution of Na 2 CO 3 of concentration corresponding to 0.5, 1.0, 1.5, or 2.0 cation exchange capacity (CEC) of clay, was investigated. Structural and compositional …

The ability to in situ upgrade pyrolysis biofuels, together with the production of a value-added byproduct from the solid biomass residue, would reduce the economic and environmental costs of the integrated biorefinery. In the present work, biomass samples (mango pits and pineapple plants) were immersed in Fuller's Earth (bentonite clay) …

This review is focused on clay-mineral-supported metal and metal oxide, according to the role of clay in various advanced oxidation-mechanism-based catalysis and photocatalysis processes. The study highlights the greenness of the processes, and is a fair comparison between the use of pure metal or metal nanoparticles with a clay-supported …

Bentonite has vide variety of uses. Special use of bentonite, where. its absorbing properties are employed to provide water-tight sealing is. for an underground repository in granites In this ...

Bentonite is a fine clay material mined from the earth, formed by the decomposition of volcanic ash deposited millions of years ago in an ancient inland seaway. It is widely used as a drilling mud for oil and natural gas wells; other uses include litter, cosmetics, a binding agent in animal feed, and a found-ry-sand bond in iron and steel foundries.

A field experiment was conducted in a semi-arid region in northern China to evaluate the effects of bentonite soil amendment on field water-holding capacity, plant available water, and crop ...

There are two main types of bentonite clay: sodium bentonite and calcium bentonite. The clay acts like a sponge and absorbs toxins while leaving behind minerals in their place. Sodium bentonite leaves behind traces of sodium, which makes it beneficial for hydration and restoring electrolytes to the body.

The new method of bentonite activation, involving dehydration of clay at 300 °C, followed by rehydration with an aqueous solution of Na 2 CO 3, enables easy preparation of Na- bentonite in two ...

Wyo-Ben has been in business since 1951, and is a leading producer of Wyoming Bentonite Clay based products. Our materials are used globally in applications such as oil, gas, water well drilling, environmental construction and remediation, hazardous waste treatment, litter, cosmetics and pharmaceuticals, as well as many other industrial and ...

In this study, the response surface methodology was applied to optimize the adsorptive removal of malachite green using nano-bentonite, MgO-impregnated clay, and Mucor sp. composites.

Typical bentonite produced in two different mineral sources (Ponorogo, and Pacitan) in East Java, Indonesia, were investigated. Both of those locations are near the BE plant; furthermore, those mining sites produce bentonite with stable characteristics and cheap. The best thermal-activation temperature for producing BE with superior …

Bentonite is a clay consisting predominantly of smectite minerals, usually montmorillonite. Bentonite is used in a large array of applications, mainly pet lit-ter, foundry moulds and drilling mud, and its annual production is higher than 8 million tons worldwide (Virta, 2001).

The effect of acid activation on the textural properties of a bentonite from Serbia was investigated using response surface methodology. The influence of activation parameters (temperature, time, acid normality, solid-to-liquid ratio and stirring rate) on the specific surface area, pore volume, pore diameter and bulk density of the activated …

Bentonite clay production process features ore mining, sodium activation (if required), drying, milling, classifying, pelleting, etc. Grinding and drying are key steps.

Thus, this study focused on exploring the interaction mechanisms between ciprofloxacin (CIP) (antibiotic) and clay (a low-cost adsorbent) during sorption process. Acid activation technique was opted for modifying natural bentonite (NB) to enhance the adsorptive removal of CIP from water.

Characterization of activated bentonite clay mineral and the … WebJun 10, 2020 After the acid activation, the analysis data showed a significant change in the chemical composition in modified bentonite clay, compared to the raw bentonite clay.

Wyoming is the nation's leader in bentonite production with over 4 million tons produced each year in three major economic geologic areas in the state: The Clay Spur area around Upton and Newcastle…

Kachchh region has abundance of high quality of Bentonite clay (Sodium and Calcium types) resources with 9-10 months of regular natural sun light, which is ideal for manufacturing high quality products by removing exta …

Download Citation | The effect of acid activation on some physicochemical properties of a bentonite | A white calcium bentonite (CaB) from the Kütahya region/Turkey was activated by heating it ...

The aim of this work was a comparative assessment of the sorption activity of bentonite-like clay subjected to acidic, alkaline, and combined activation, in relation to iron (III) ions.

The increasing application of bentonite-supported metal nanoparticles in industries and pharmaceutical companies is the key trend in the current market. Motshekga et al. prepared silver-zinc oxide nanoparticles supported on bentonite clay by microwave-assisted synthesis [ 26 ].

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Bentonite is a naturally occurring plastic clay that was first found in about 1890 in upper cretaceous tuff near Fort Benton, Montana. It is a very useful and versatile mineral that is found in a wide variety of products and services. Therefore, bentonite is often called "the clay of a thousand uses."Bentonite is created from the alteration of volcanic ash. …

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 of the process variables, namely mass fraction of H 2 SO 4 ( x) in the dried CaB and pure H 2 SO 4 mixture, heating temperature ( T) and contact time ( t ), in the …

The experimental work involves nano graphene oxide coating using acid dehydration via sulfuric acid in presence of different percentage of sugar (fine powder from 1 to 7%), followed by thermal activation to improve the adsorption capacity of natural clay that is locally available in Egypt.

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 of the process variables, namely mass fraction of H 2 SO 4 ( x) in the dried CaB and pure H 2 SO 4 mixture, heating temperature ( T) and contact …

Acid activation is a common chemical modification of clays, usually bentonites, with a hot solution of a mineral acid (typically HCl or H2 SO 4 ), and it is used for both scientific and industrial purposes. The aim is to obtain partly dissolved material of increased specific surface area, porosity and surface acidity. The product consists partly of the remains of …

Composed of aged volcanic ash, Plant Therapy's Calcium Bentonite Clay is made with a high concentration of organic minerals such as silica, calcium, magnesium, sodium, iron, and potassium. For centuries, Bentonite Clay has been used to help detoxify and heal the skin, by helping draw out dirt and toxins. For those who have oily skin, this …

The NH 3 -adsorption capacities of the bentonite samples (3.801–5.068 mmol g –1) were also compared with previously studied clay-based materials (0.828–4.000 mmol g –1) in terms of their textural and structural differences.