Results 31 to 40 of about 8,256 (210)

Separation of CH4/N2 of Low Concentrations From Coal Bed Gas by Sodium-Modified Clinoptilolite

open access: yesFrontiers in Chemistry, 2018
Clinoptilolite is a widely distributed tectosilicate, mainly composed of Al2O3, SiO2 with exchangeable cations such as Ca, K, Mg, and Na. In this research, raw clinoptilolite was ground, gravimetrically concentrated and ion-exchanged using different ...
Xiaofei Hao   +5 more
doaj   +1 more source

Investigation of phosphate adsorption from aqueous media using synthetic mordenite and modified natural clinoptilolite zeolite adsorbents: characteristics, kinetics, and isotherms [PDF]

open access: yesJournal of Particle Science and Technology, 2021
This study investigates phosphate removal from aqueous solution by synthetic mordenite and modified clinoptilolite zeolite. The mordenite zeolite was synthesized using the solvothermal method, and natural clinoptilolite zeolite was modified by ultrasound
Mansoor Anbia, Hossein Pazoki
doaj   +1 more source

Clinoptilolite-Based Adsorbents for Paracetamol Removal. [PDF]

open access: yesMolecules
This study investigates the adsorption of paracetamol from aqueous solutions using natural clinoptilolite and its modified forms. The raw zeolite (p-CLI) was converted into its protonic (H-CLI) and organo-modified (o-CLI) counterparts through ammonium exchange and calcination, and treatment with hexadecyltrimethylammonium bromide (HDTMA-Br ...
Wójcik S   +3 more
europepmc   +3 more sources

Effect of Clinoptilolite on Humoral Immunity and Biochemical Parameters in Calves Vaccinated with Foot and Mouth Disease Vaccine [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2021
The foot and mouth disease (FMD) vaccine is used to control the FMD in cloven-hoofed animals including calves. The most important step in vaccine preparation is the selection of a suitable adjuvant which plays a main role in the vaccine’s potency.
Nour Elhoda Tamim   +3 more
doaj   +1 more source

Scientific Opinion on the safety and efficacy of clinoptilolite of sedimentary origin for all animal species [PDF]

open access: yesEFSA Journal, 2013
The additive clinoptilolite of sedimentary origin contains at least 80 % clinoptilolite (hydrated calcium aluminosilicate) and a maximum of 20 % clay minerals.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Adsorption of Sulfur Dioxide on Clinoptilolite/Nano Iron Oxide and Natural Clinoptilolite

open access: yesHealth Scope, 2019
Background: Sulfur dioxide gas is known to include pollutants that are harmful to human health and the environment. Therefore, due to the increase of industrial activities, SO2 gas pollution control is very important. Objectives: The purpose of this study was to investigate the efficiency of sulfur dioxide removal by iron oxide nanoparticles deposited ...
Mina Mahmoodi Meimand   +2 more
openaire   +2 more sources

Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth [PDF]

open access: yesRatarstvo i Povrtarstvo, 2017
Zeolites can mitigate ammonium losses to the environment by taking up the ions from sources such as farmyard manure and ammonium-bearing fertilizers. This ability can improve nitrogen fertilizing practice given that ammonium ions loaded onto zeolite are ...
Karličić Vera   +6 more
doaj   +1 more source

Effects of Formic Acid on the Adsorption of K on Modified Clinoptilolite

open access: yesAdsorption Science & Technology, 2013
Adsorption of Escherichia coli K 88 on natural and acid-modified clinoptilolite was studied under ambient conditions. The materials under study were characterized in terms of surface area and cation-exchange capacity (CEC).
Qiujue Wu, Yanmin Zhou, Tian Wang
doaj   +1 more source

Sorption of zinc by Clinoptilolite-Fe(NO3)3 systems

open access: yes, 2009
Many factors may affect the zinc (Zn) adsorption and desorption on natural clinoptilolite and iron (Fe) oxides. Among them are ionic strength and pH. In this article, the Zn retention behavior on two clinoptilolite-Fe(NO3)3 systems as a function of ionic
Dimirkou, A   +7 more
core   +1 more source

Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

open access: yesThe Scientific World Journal, 2015
Improper use of urea may cause environmental pollution through NH3 volatilization and NO3- leaching from urea. Clinoptilolite zeolite and compost could be used to control N loss from urea by controlling NH4+ and NO3- release from urea.
Latifah Omar   +2 more
doaj   +1 more source

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