Ion exchange of Pb2+, Cu2+, Fe3+, and Cr3+ on natural clinoptilolite: selectivity determination and influence of acidity on metal uptake

VJ Inglezakis, MD Loizidou… - Journal of colloid and …, 2003 - Elsevier
In the present study ion exchange of Pb2+, Cu2+, Fe3+, and Cr3+ on natural Greek
clinoptilolite was examined in terms of selectivity toward the above heavy metals in single …

Pozzolanic activity of clinoptilolite: A comparative study with silica fume, fly ash and a non-zeolitic natural pozzolan

B Uzal, L Turanlı, H Yücel, MC Göncüoğlu… - Cement and Concrete …, 2010 - Elsevier
Pozzolanic activity of clinoptilolite, the most common natural zeolite mineral, was studied in
comparison to silica fume, fly ash and a non-zeolitic natural pozzolan. Chemical …

Clinoptilotite-heulandite: applications and basic research

T Armbruster - Studies in surface science and catalysis, 2001 - Elsevier
Structural peculiarities of clinoptilolite and heulandite are reviewed. Special attention is
given to partial Si, Al ordering within the tetrahedral framework structure. There is strong …

Blended cements containing high volume of natural zeolites: Properties, hydration and paste microstructure

B Uzal, L Turanlı - Cement and Concrete Composites, 2012 - Elsevier
In this study, properties and hydration characteristics as well as paste microstructure of
blended cements containing 55% by weight zeolitic tuff composed mainly of clinoptilolite …

Use of natural zeolite and glass powder mixture as partial replacement of portland cement: the effect on hydration, properties and porosity

D Kriptavičius, G Girskas, G Skripkiūnas - Materials, 2022 - mdpi.com
The study investigates effect of the additive consisting of natural zeolite (clinoptilolite) and
soda lime glass powder on the hydration, mechanical properties and porosity of Portland …

Enhancement of microbial density and methane production in advanced anaerobic digestion of secondary sewage sludge by continuous removal of ammonia

B Tao, J Donnelly, I Oliveira, R Anthony, V Wilson… - Bioresource …, 2017 - Elsevier
Ammonia inhibition mitigation in anaerobic digestion of high solids content of thermally
hydrolysed secondary sewage sludge by the NH 4+ affinitive clinoptilolite and a strong acid …

Use of natural clinoptilolite for the removal of lead, copper and zinc in fixed bed column

MA Stylianou, MP Hadjiconstantinou… - Journal of Hazardous …, 2007 - Elsevier
This work deals with the removal of lead, copper and zinc from aqueous solutions by using
natural zeolite (clinoptilolite). Fixed bed experiments were performed, using three different …

Comparative study of natural and synthetic clinoptilolites containing silver in different states

B Concepción-Rosabal, G Rodríguez-Fuentes… - Microporous and …, 2005 - Elsevier
Clinoptilolite is a widely used natural zeolite due to its abundance in nature. The present
work discusses the characteristics of silver modified clinoptilolites (natural and synthetic) …

Laboratory studies on recovery of N and P from human urine through struvite crystallisation and zeolite adsorption

ZS Ban, G Dave - Environmental technology, 2004 - Taylor & Francis
Abstract Struvite [Mg (K, NH4)(PO4) 6H2O] crystallisation and adsorption to zeolite have
been proposed as a method for nutrient recovery from human urine collected with urine …

The effect of acid treatment on the reactivity of natural zeolites used as supplementary cementitious materials

LE Burris, MCG Juenger - Cement and concrete research, 2016 - Elsevier
This work investigated the use of acid treatment as a method for increasing the reactivity of
natural zeolite used as a supplementary cementitious material. The effects of treating a …