Effects of a one-time application of bentonite on soil enzymes in a

Soil enzymes play a key role in many soil processes that affect soil health and which may be adversely affected under a changing climate. We investigated the short- and long-term effects of bentonite amendments on soil catalase, invertase, urease, and alkaline phosphatase activity in a field experiment in a semi-arid region in northern China. Treatments included six …

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Discussion on determination of yield of bentonite

It is apparent that the pulping rate of different clay minerals from different regions varies greatly. By contrast, bentonite has a slightly lower pulping rate due to its natural layered structure ...

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The enhancement effect of Ca-bentonite on the working performance …

Bentonite is an aluminosilicate clay with montmorillonite, having the characteristics of small particles, large specific surface area, good dispersibility, high pulping rate, and many others, and has been widely used in the field of geopolymer.

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Effect of clay minerals on pulp rheology and the

The first result, and as it was expected, was that the highest increase in pulp viscosity generated by bentonite which was explained by the 2:1 structure that produces a higher viscosity than ...

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POLYSELECT® POWER PAC-L

POLYSELECT® POWER PAC-L filtration control additive is designed to reduce the filtration rate of water-based fluids while having minimal impact to viscosity. When added to bentonite-based fluids, POLYSELECT POWER PAC-L provides a system suitable for drilling in porous environments. ... •Reduce clay swelling and sloughing. Advantages •Easy ...

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(PDF) The effect of flocculants, shear, vacuum and …

CPAM improves retention but the bentonite addition level must be optimised for further improvements in retention. A Dynamic Drainage Jar ('Britt Jar') was modified to allow bagasse pulp slurry...

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The enhancement effect of Ca-bentonite on the working performance …

Fig. 7 b shows that the rate of RSG mechanical strength improvement from 7 to 28 days first increases and then decreases with an increase in Ca-bentonite concentration, indicating that Ca-bentonite can participate in geopolymerization reaction in the later hydration reaction stage, thus improving the RSG mechanical property.

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The enhancement effect of Ca-bentonite on the working …

Ca-bentonite has the advantages of fine particle size and strong adsorption capacity. As an admixture, Ca-bentonite can reduce RSG porosity, and adsorb corrosive ions …

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Rheological and Mechanical Properties of Bentonite–Cement …

Therefore, the shear rate of apparent viscosities in water decreases rapidly with the increase in the shear rate of 0–20 s −1 and then tends to be stable. This indicates that basalt fiber-reinforced bentonite cement paste (BFBCP) has undergone shear thinning.

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How to High pulping rate patent retrieval

Eureka provides all invention patents, utility model patents, and design patents related to High pulping rate for R&D engineers, R&D managers, and intellectual property professionals, including patent numbers, applicants, technical effects, abstracts, and drawings. You can check High pulping rate relevant patent data for query retrieval analysis.

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Application of bentonites as an agent for the purification of solid

The objective of this work was to improve the treatment performance of pulp & paper mill effluents, and hence the quality of treated wastewater. For this purpose, a combination of adsorption and ...

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Utilization of Bentonite and Hybrid UF-RO in Treatment of …

The purpose of this research is to investigate the performance of bentonite, hybrid of ultra-filtration and reverse osmosis (UF-RO) in improving the quality of liquid waste produced by pulp …

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Montmorillon Clay Sodium Bentonite Calcium Bentonite Clay …

Our bentonite/ Montmorillon clay: white and yellow. Our bentonite/ Montmorillon clay: calcium bentonite, sodium bentonite,organic bentonite, bleaching earth powder. Main features of bentonite: 1. High concentration and pulping rate; 2. Excellent ability to …

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Pulping Property Of Bentonite

Pulping Property Of Bentonite - Oct 20, 2020- Pulping rate is the suspension formed by dispersing bentonite particles in water, and when the apparent viscosity of the …

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Pulping Property Of Bentonite

Pulping Property Of Bentonite - Oct 20, 2020- Pulping rate is the suspension formed by dispersing bentonite particles in water, and when the apparent viscosity of the suspension is 15* 10-3ps · S, the cubic number of bentonite pulping per ton is an important index to measure the quality of bentonite, and the pulping performance of sodium ...

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The performance of chitosan with bentonite microparticles as wet …

Research Highlights: 1-Chitosan showed potential as a dry strength additive in CMP pulp in acidic pH. 2-A low percentage of bentonite dosage in combination of 1.25% and 2% chitosan could improve the performance of chitosan polyelectrolyte which led to …

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Research of Na CO / C H SO Na modified bentonite on high …

suspension was measured by liquid densimeter. The formula (2) for calculating the rate of bentonite slurry is as follows: B V WM w xx = + 1 (1) Where B = pulping rate ( m3/t ), V w = water volume ...

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Effect of calcium ions on bentonite network structure

In order to improve the utilization rate of fine-grained shield dregs, a method of using waste silty clay to partially replace bentonite as a conditioner is proposed. Bentonite, wasted silty clay, additives, and tap water are selected to prepare the bentonite- silty clay modified slurry (BSC) and its various properties are tested.

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Effect of monovalent, divalent and trivalent ions on the grinding

For pure bentonite, elevating the pulp pH led to a reduction in the zeta potential, likely attributed to the adsorption of OH − ions onto the surfaces of bentonite. Nevertheless, with the presence of Al 3+, Mg 2+, or K + ions, the zeta potential of bentonite remained largely unaffected by the pH increase up to pH 8.

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Bentonite Powder for Industrial Applications

When added to pulp, bentonite helps to improve the strength and durability of the paper. It increases the paper's resistance to tearing and enhances its overall texture, making it more suitable for and writing. The clay also contributes to the smoothness of the paper's surface, which is particularly important for high-quality ...

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The flotation behavior of chalcopyrite in the presence of bentonite …

Since it has been found that in tap water the increase in pulp viscosity in the presence of bentonite deteriorated the flotation results and using salt water and seawater could mitigate the deleterious effect significantly (Wang et al., 2015, Wang et al., 2016, Zhang and Peng, 2015, Zhang et al., 2015a), rheological measurements of pure bentonite suspension as a …

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Manufacturing of Fluff Pulp Using Different Pulp Sources and …

absorption capacity of fluff pulp could be increased using some strategies. Among others, a few studies have used minerals and non-wood pulps in order to manufacture fluff pulp. In fact, the addition of minerals, such as bentonite, into the fluff pulp can increase the absorption capacity of fluff pulp due to its superabsorbent properties [8].

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Production of modified bentonite via adsorbing lignocelluloses …

The turbidity and COD removals were improved from 69% to 93% and from 25% to 38% by adding PDADMAC to the SL/bentonite system, respectively. The increase in the heating value of bentonite (from 0 ...

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Study on the effect of water content on physical properties of bentonite

Moisture content profoundly influences the engineering properties of expansive soil, a critical consideration in various geotechnical applications. This study delves into the intricate relationship between water content and the physical properties of bentonite, a key constituent of expansive soil. Through a comprehensive analysis encompassing fundamental …

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SciELO Brasil

To improve the dispersion of drilling fluid at high temperature and pressure, the natural Ca-based bentonite was modified with Na 2 CO 3 and SDBS (sodium dodecyl benzene sulfonate: C 12 H 25 SO 4 Na) by microwave semi-dry method.

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The use of a PAE /bentonite binary system to

Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.

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Application of modified bentonite granulated electrodes for advanced

Because of water shortage, pulp and paper industries must save freshwater, reduce the production of wastewater and improve the recycling rate of clean and treated water. Hence, it is necessary to develop a tertiary treatment to improve wastewater discharge quality and to allow the inclusion of wastewater as process water [5], [8] .

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The different effects of bentonite and kaolin on copper flotation

Bentonite caused high pulp viscosity reducing bubble and particle mobility. ... rotor lowered until the gap between the rotor and the bottom of cup was 4 mm. Rheograms were generated in the shearing rate ranging ... the copper recovery decreased with an increase in bentonite content in flotation because of the high slurry viscosity that reduced ...

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(PDF) Research of Na2CO3/C12H25SO4Na modified bentonite …

The BFDF formulation exhibits a strong ability to restrain the linear expansion rate of bentonite and shale powder, to improve cutting recovery, to protect the well reservoir by …

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Discussion on determination of yield of bentonite

In addition to the effect of Na-saturation treatment, the well-dispersed nanorod crystals (length of 816 ± 233 nm and width of 29 ± 7 nm) may be also a key factor for the high …

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