Using natural zeolite enhanced the microstructures of superhydrophobic mortar and decreased water absorption, leading to improved anti-corrosion …

The purpose of this study was to investigate the effect of Cu(II) on the adsorption performance and mechanism of tetracycline (TC) adsorption by natural zeolite (NZ) in aqueous solution. Low levels of Cu(II) (<0.01 mmol/L) enhanced the extent of TC adsorption from ∼0.4 mg/g (in the absence of Cu(II)) to ∼0.5 mg/g (with 0.01 mmol/L …

Tuan et al. [ 20] evaluated the effects of natural zeolites upon the autogenous shrinkage of ultrahigh-performance concrete. The use of natural zeolites at 5%, 10%, and 12.5% yielded decreases in autogenous shrinkage values of ultrahigh-performance concrete of 64%, 74%, and 77%, respectively, after 28 days.

The photodegradation (MeO) performance of the natural zeolite-supported (NZGZA-1) ternary system was found to be 87.1% under optimal working circumstances. The primary active species engaged in MeO decolorization were the holes. The photodegradation efficiency under outdoor experiment yielded 98.2 and 78.9 %, for MeO and mixture of …

Therefore, the natural decationized zeolite NH showed the best rate constant for the decomposition of the studied stimulant compound (Fig. 6). This mineral contains tiny quantities of iron, which may be the origin of various photoinduced species responsible for the photocatalytic performance.

release performance of natural zeolite Vladimir Hovhannisyan1,2, Chen-Yuan Dong2 & Shean-Jen Chen1,3 Clinoptilolite type of zeolite (CZ) is a promising material for biomedicine and pharmaceutics ...

Widiastuti et al. reported that the natural zeolite had a good ammonium removal performance at 150-min with 3.0 mg/g adsorption capacity. In another study, Zanin et al. [ 138 ] potential to remediate heavy metals by using natural zeolite was explored and according to results recovery time of copper was 180 min with 96% removal rate.

Rapid strengthening ultra-high-performance concretes (RS-UHPCs) have great potential in repair applications and precast elements manufacturing. Using industrial and natural pozzolans to reduce cement consumption and carbon dioxide footprint can be a crucial step in the industrial and economic development of UHPCs. In this study, by …

An expanded granular sludge bed (EGSB) reactor using natural zeolite as support was evaluated for treating synthetic swine wastewaters. The process was operated at 30 °C during 255 days in two reactors at laboratory scale. The control reactor (Rc) was operated only with granular sludge while 120 g of zeolite was supplemented additionally …

New zeolitic materials have shown high performance in emerging applications across diverse areas. ... M. Y. et al. Ultra-selective high-flux membranes from directly synthesized zeolite nanosheets ...

T1 - Evaluation of physicochemical methods in enhancing the adsorption performance of natural zeolite as low-cost adsorbent of methylene blue dye from wastewater. AU - Hor, Kar Yan. AU - Chee, Jasmine Mun Cheng. AU - Chong, Meng Nan. AU - Jin, Bo. AU - Saint, Christopher. AU - Poh, Phaik Eong. AU - Aryal, Rupak

The route in biolubricant synthesis is the one step reaction between PKO with ethylene glycol in the presence of modified Bayah zeolite catalyst (Ni-ZB). Biolubricant was prepared by reaction of 15 g of palm kernel oil (PKO) with 15 g of ethylene glycol by refluxing at 150 ℃ for 3 h. The reflux was performed in the absence and presence of Ni-ZB.

The effects of dietary supplementation of Yucca schidigera and natural zeolite on broile r performance, ammonia concentration of broiler house, litter moisture, fecal dry matter and fecal crude ash were investigated. One day-old, nine hundred and sixty unsexed broiler chicks obtained from a commercial hatchery were divided into 4 …

The three variations of the ZnO-natural zeolite nanocomposites showed different results as indicated by ZnO-natural zeolite at 1:2 having the lowest Zn content of 0.07% as well as other natural zeolite constituent components such as Si and Al while 1:1 had 2.06% of Zn but there was no Al in the sample.

1. Introduction. The natural zeolites are porous materials with valuable physicochemical properties, such as high cation exchange capacity (CEC), cation selectivity and high void volume [1], [2].The use of zeolite minerals in environmental applications is gaining new research interests mainly due to their properties, significant worldwide …

Zeolite minerals are found in various geological settings around the world. They occur naturally as crystalline deposits in volcanic rocks, sedimentary rocks, and certain mineral deposits.The geological processes that lead to the formation of zeolites include volcanic activity, hydrothermal alteration, and sedimentary diagenesis.Here are …

Zeolite materials are among the relatively cheap and readily available materials for wastewater treatment. However, the performance of zeolite-based systems can be highly affected by the material properties. In this study, the treatment system based on natural zeolite materials from Chankanai mines in Kazakhstan was compared with a …

The lag phase is another index to evaluate anaerobic digestion performance (Liu et al., 2023a, b).Herein, the modified Gompertz model was used to further explore the roles of zeolite on anaerobic digestion of WAS (Table S1).It was found that this model could accurately simulate the methane production performance aided by zeolite, with R 2 …

This research work conducted on six mixes with two varying water-binder ratios 0.30 & 0.40 and cement has been replaced with Natural Zeolite powder at two replacement levels of 30% and 40% along with the plain OPC concrete without zeolite powder. 160Kg/Cum water content is constant for every mix. 0.5% superplasticizer is …

The monoclinic crystal system of the activated natural zeolite exhibited a great catalytic performance because of the improved reducibility of Ni over the monoclinic support [48]. Monoclinic Ni/ZrO 2 catalyst resulted in superior activity in glycerol steam reforming such as higher glycerol conversion and hydrogen yield than tetragonal Ni/ZrO …

Clinoptilolite (E567), a natural zeolite, inclusion in heavy-pig diets: Effect on the productive performance and gaseous emissions during fattening and manure storage

Water removal from diesel, jet fuel and diesel/biodiesel blends was investigated using a highly crystalline natural zeolite, from the region of Eastern Macedonia and Thrace, Greece, as dehydration agent. For the evaluation of the zeolite performance an amount of 0.5% w/v of the material was mixed with the fuel for 2 h and then removed.

The aim of the study was to determine the influence of iron loading in the natural zeolite-supported catalyst on its catalytic performance in NOx conversion. ... The catalytic performance of the ...

The natural zeolite was provided by the Tasajeras ore located at Villa Clara Province, Cuba. It is characterized by 70% clinoptilolite-heulandite, 5% mordenite, 15% anorthite and 10% quartz. ... effect of zeolite addition on process performance. Process Biochem., 49 (12) (2014), pp. 2220-2227, 10.1016/j.procbio.2014.09.011. View PDF View ...

In this study, an alternate accelerated carbonation technique was investigated using non-destructive testing (electrochemical impedance spectroscopy) on concrete mixes containing natural zeolite. The extent of carbonation in concrete mixtures containing natural zeolite powder and natural zeolite fine aggregates was examined.

The use of natural zeolites at 5%, 10%, and 12.5% yielded decreases in autogenous shrinkage values of ultrahigh-performance concrete of 64%, 74%, and 77%, respectively, after 28 days.

In addition, natural zeolite enhanced a more stable performance of the anaerobic treatment processes, as well as in removing nitrogen compounds and soluble organic matter [10]. This is a ...

In this study, natural clinoptilolite was treated with HCl, HNO3, and C2H2O4 at various concentrations (0.1, 0.5, and 1.0 M) at different temperatures (60, 70, and 80 °C) and treatment times (2, 3, and 4 h). The hydrogen adsorption capacity of natural clinoptilolite increased from 0.446 to 3.255 mmol/g after treating with 0.5 M HNO3 at 80 …

natural zeolite was used as a mechnical filter where zeolite (500kg) was placed in a concrete pond with dimentions (1.5m length, 2.30m width and 90cm height) in which the irrigation water passed through it and then distributed to the ponds by water inlet pipes. Natural zeolite as shown in Figure 1 are porous granules of

Further research and development is required to improve the performance and reduce the cost of these materials. A promising approach to developing low-cost TCM is to use natural zeolite adsorbents as host matrices in the development of salt-loaded composite TCM. In this study, the thermal properties of various species of low-cost …