natural zeolites iranian

Zeolite.ir | Natural Zeolite - Iran Zeolite | Zeolite.ir

2018-2-11 · Natural zeolites are inorganic porous minerals with crystalline structures. So far, more than 45 naturally occurring zeolite frameworks have been identified. Clinoptilolite, mordenite, analcium , chabazite, erionite, heulandite

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Application of Iranian natural zeolite and blast furnace ...

Iranian natural zeolite and blast furnace slag (BFS) as materials of slow sand filters (SSFs) in small communities’ water resources. ... as natural zeolites in some locations of Rameswaram ...

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Evaluation efficiency of Iranian natural zeolites and ...

2020-1-24 · Iranian natural zeolite (INZ), Clinoptilolite, was supplied by the Afrand Tooska Co. in Iran under the trade name of Anzymite. These zeolites were extracted from Semnan mines in the northeast of Iran (Sharghe Haftdareh). In this location, zeolite deposits are found in some horizons of sedimentary volcanic rocks, which were dependent on Eocene.

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Sedimentary Zeolite Deposits in Iran

2016-9-7 · Sedimentary Zeolite Deposits in Iran Introduction: Despite the substantial work that has been carried out by many Iranian geologists on ex-ploration and exploitation of different zeolitic deposits in the country, official data and sta-tistics on natural zeolites reserves are very limited and finding any information on zeolite

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(PDF) Vitrification of Cs and Sr loaded Iranian natural ...

Iran has significant deposits of high-purity natural zeolites. Many Iranian scholars conduct scientific research on porous materials, from natural and synthetic zeolites to

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Soil cadmium stabilization using an Iranian natural ...

2007-1-15 · For sandy and loamy soils, application of zeolite effectively reduces soil hydraulic conductivity. In the case of clay soils, on the contrary, zeolite would slightly increase its hydraulic conductivity. The findings of the present study can be used in determining possible applications of Iranian natural zeolites for cadmium stabilization in soils.

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Ammonium removal from aqueous solutions by natural

2016-6-1 · The natural Iranian clinoptilolite zeolite used in the experiments was obtained from Semnan province, Iran. The chemical composition of natural zeolite is given in Table 1.The cation exchange capacity (CEC) and effective cation exchange capacity (ECEC) was approximately 440 and 120 mmol kg −1, respectively .The particle size of the zeolite was between 0.25 and 2 mm.

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Removal of Ammonia from Air, using Three Iranian Natural ...

Natural zeolites such as clinoptilolite are renowned adsorbents for ammonia, in which they are selectively trap ammonia even at very high relative humidity

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Ion Exchange Behavior of Zeolites A and P Synthesized ...

2022-1-20 · Natural zeolites from two different regions of Iran (i.e. Semnan and Ardakan) were collected, ground and sieved. Both zeolites were clinoptilolite type. Some portions with the particle size of 224-500 µm were tested for ion exchange experiments. According to our primary experiments natural zeolites zdidn't show appropriate

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Iranian clinoptilolite-rich tuffs for radionuclide removal ...

Three Iranian natural zeolites were characterized and evaluated for their abilities to take up Ba+2, Ca+2, K+ and Na+ from radioactive waste waters. The distribution coefficient values (K d ) of the cations were measured and investigated as a function of pH. Four different cationic forms (Na, K, NH4, and Ca) were also prepared and theirK d values were determined. Some cations such as

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Zeolite.ir | Natural Zeolite - Iran Zeolite | Zeolite.ir

2018-2-11 · Natural zeolites are inorganic porous minerals with crystalline structures. So far, more than 45 naturally occurring zeolite frameworks have been identified. Clinoptilolite, mordenite, analcium , chabazite, erionite, heulandite

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Iranian natural clinoptilolite and its synthetic zeolite P ...

The ion-exchange behaviors of an Iranian natural clinoptilolite and its modified forms as well as a relevant synthetic zeolite P were investigated toward cerium and thorium from nuclear wastewaters. Column experiments were performed on different exchangers in various conditions and the effect of parameters such as particle size, pH, temperature, and time were considered.

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Effects of Ammonium and Iranian Natural Zeolite on ...

We weighed 1.0 g of soil, soil+zeolit and zeolite in 50 mL polypropylene centrifuge tubes in 2 repetition and added 10 mL of with an ionic strength and pH equivalent to Pardis saturated soil paste extract containing potassium concentrations 40, 60, 80, 110 and 140 mg L-1 for K treatments and potassium+ammonium concentrations, K80, N60; K80, N120; K60, N60; K110,

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Natural Zeolites Application as Sustainable Adsorbent

2012-3-5 · Natural Zeolites Application as Sustainable Adsorbent for Heavy Metals Removal from Drinking Water Gagik Badalians Gholikandi1, Mohammad Mehdi Baneshi2, Emad Dehghanifard3, Saeed Salehi4, Ahmad Reza Yari5 ABSTRACT Background: There are great resources of natural zeolite in Iran. Zeolite, an inorganic

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Adsorption of radioactive iodide by natural zeolites ...

Two natural zeolites from Iranian deposits (clinoptilolite and natrolite) were characterized and their ability for adsorption of iodide from nuclear wastewaters was evaluated. The adsorption behavior was studied on natural and modified zeolites by g-spectrometry using 131I as radiotracer. Adsorption isotherms and distribution coefficient (Kd) were measured. The results showed that ...

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Ion Exchange Behavior of Zeolites A and P Synthesized ...

2022-1-20 · Natural zeolites from two different regions of Iran (i.e. Semnan and Ardakan) were collected, ground and sieved. Both zeolites were clinoptilolite type. Some portions with the particle size of 224-500 µm were tested for ion exchange experiments. According to our primary experiments natural zeolites zdidn't show appropriate

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Iranian clinoptilolite-rich tuffs for radionuclide removal ...

Three Iranian natural zeolites were characterized and evaluated for their abilities to take up Ba+2, Ca+2, K+ and Na+ from radioactive waste waters. The distribution coefficient values (K d ) of the cations were measured and investigated as a function of pH. Four different cationic forms (Na, K, NH4, and Ca) were also prepared and theirK d values were determined. Some cations such as

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The study of dehumidifying of carbon monoxide and

2005-10-31 · H. Kasemian, P. Rajec, F. Macasek, J. Orechovska Kufcakova, Investigation of lead removal from wastewater by Iranian natural zeolites using 212Pb as a radiotracer, in: Zeolites and Mesoporous Materials at the Dawn of the 21st Century, 2001, pp. 5172–5178.

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The ۵th International Zeolite Conference of Iran

2022-1-28 · The deadline for submitting papers to the 5 th Iran International Zeolite Conference (IIZC5) is extended to May 31, 2018.. Due to requests for extension of the deadline for submission of papers, the Organizing Committee of IIZC5 has decided to extend the deadline to May 31, 2018.Each participant can submit only two papers for evaluation in IIZC5.

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Kinetic and Adsorption Isotherms Study of Cyanide

2022-1-11 · Using Natural and Impregnated Zeolites Samiee Beyragh, Abdoullah Iranian Academic Center for Education, Culture and Research (ACECR), Amirkabir Branch, Tehran, I.R. IRAN Varsei, Mehdi Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRAN Meshkini, Mohammad *+

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Zeolite.ir | Natural Zeolite - Iran Zeolite | Zeolite.ir

2018-2-11 · Natural zeolites are inorganic porous minerals with crystalline structures. So far, more than 45 naturally occurring zeolite frameworks have been identified. Clinoptilolite, mordenite, analcium , chabazite, erionite, heulandite

Read More

Iranian natural clinoptilolite and its synthetic zeolite P ...

The ion-exchange behaviors of an Iranian natural clinoptilolite and its modified forms as well as a relevant synthetic zeolite P were investigated toward cerium and thorium from nuclear wastewaters. Column experiments were performed on different exchangers in various conditions and the effect of parameters such as particle size, pH, temperature, and time were considered.

Read More

Natural Zeolites Application as Sustainable Adsorbent

2012-3-5 · Natural Zeolites Application as Sustainable Adsorbent for Heavy Metals Removal from Drinking Water Gagik Badalians Gholikandi1, Mohammad Mehdi Baneshi2, Emad Dehghanifard3, Saeed Salehi4, Ahmad Reza Yari5 ABSTRACT Background: There are great resources of natural zeolite in Iran. Zeolite, an inorganic

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Cd(II) Sorption on Iranian Nano Zeolites: Kinetic and ...

2021-11-5 · The XRD pattern of natural zeolites is shown in Fig. 1. The XRD pattern showed that the sample exhibited high crystallinity, with the characteristic reflection peaks at Bragg angle (2θ)=10°, 11.3°, 13.2°, 22.5°, 27°, 30.02° and 32°, respectively. The pattern indicates that the Iranian natural zeolite used in

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Recent advances in the science and technology of

adapted for a variety of uses. Iranian zeolites vary in terms of pur-ity, composition, crystal size, porosity, pore size and other charac-teristics (Mazloomi & Jalali, 2016). Natural zeolites have many important properties and are available in many regions of the world. Natural and synthetic zeolites with large specific surface

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Modified Natural Zeolites as Sorbents for Separation and ...

natural modified analcime and natrolite of zeolites as sorbent materials for solid-phase extraction and preconcentration of trace metal ions. EXPERIMENTAL Natural analcime and natural zeolites were collected from Torfeh, Shahr Babak and Hejin, Sarcheshmeh, area, Kerman region in Iran 22. The zeolites were sieved to

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The ۵th International Zeolite Conference of Iran

2022-1-28 · The deadline for submitting papers to the 5 th Iran International Zeolite Conference (IIZC5) is extended to May 31, 2018.. Due to requests for extension of the deadline for submission of papers, the Organizing Committee of IIZC5 has decided to extend the deadline to May 31, 2018.Each participant can submit only two papers for evaluation in IIZC5.

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Kinetic and Adsorption Isotherms Study of Cyanide

2022-1-11 · Using Natural and Impregnated Zeolites Samiee Beyragh, Abdoullah Iranian Academic Center for Education, Culture and Research (ACECR), Amirkabir Branch, Tehran, I.R. IRAN Varsei, Mehdi Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRAN Meshkini, Mohammad *+

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Natural zeolites as effective adsorbents in water and ...

2018-3-20 · Various natural zeolites around the world have shown varying ion-exchange capacity for cations such as ammonium and heavy metal ions. Some zeolites also show adsorption of anions and organics from aqueous solution. Modification of natural zeolites can be done in several methods such as acid treatment, ion exchange, and surfactant

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沸石_百度百科

沸石（zeolite）是一种矿石，最早发现于1756year。瑞典的矿物学家克朗斯提（Axel Fredrik Cronstedt）发现有一类天然硅铝酸盐矿石在灼烧时会产生沸腾现象，因此命名为“沸石”（瑞典文zeolit）。在希腊文中意为“沸腾”（zeo）的“石头”（lithos）。此后，人们对沸石的研究不断深入。

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