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Kateryna Stepova, Iryna Fediv, Au?ra Ma?eikiene, Julita ?arko and Jonas Ma?eika
The research focuses on ammonia and phosphate removal from wastewater by using a novel metal and microwave-treated clinoptilolite. For increasing adsorption capacity, the samples were calcinated or microwave irradiated in the solutions of Fe(III), Cu (II...
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Victor Kavvadias, Zacharias Ioannou, Evangelia Vavoulidou and Christos Paschalidis
The proper management of treated agricultural wastes (e.g., composts) contributes to the protection of water and soil quality by reducing the use of chemical fertilizers, lowering leachate, and protecting renewable and nonrenewable resources. Natural zeo...
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Monireh Rahimi, Jafar Mahmoudi
Pág. 106 - 115
Removal of heavy metals including Pb, Co, Cr and Zn from an aqueous solution was investigated using modified clinoptilolite zeolites as adsorbents. The adsorbents were characterized by X-ray, FTIR, SEM and BET. The central composite design defined under ...
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Katelyn Skornia, Steven I. Safferman, Laura Rodriguez-Gonzalez and Sarina J. Ergas
Wastewater produced during the wine-making process often contains an order of magnitude greater chemical oxygen demand (COD) concentration than is typical of domestic wastewater. This waste stream is also highly variable in flow and composition due to th...
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Bruno de Gennaro, Paolo Aprea, Barbara Liguori, Barbara Galzerano, Antonio Peluso and Domenico Caputo
Natural zeolites are used as adsorbents in purification processes due to their cation-exchange ability and molecular sieve properties. Surface modified natural zeolites (SMNZs), produced by attaching cationic organic surfactants to the external surface, ...
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Ana-Voica Bojar, Victor Barbu, Artur Wojtowicz, Hans-Peter Bojar, Stanislaw Halas and Octavian G. Duliu
New geochronological investigations for the Slanic Formation, correlated with previous bio- and lithostratigaphical information, allow for a better succession of events for the Middle Miocene, including the absolute age of the Badenian salinity crisis in...
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Amanda L. Ciosek, Grace K. Luk
Pág. 1 - 22
This study investigates the sorption of heavy metallic ions (HMIs), specifically lead (Pb2+), copper (Cu2+), iron (Fe3+), nickel (Ni2+) and zinc (Zn2+), by natural zeolite (clinoptilolite). These HMIs are combined in single-, dual-, triple-, and multi-co...
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Victoria E. Sy, Santiago Schalamuk, Ana C. Scorsetti, Irma L. Botto
Pág. 273 - 282
Improvements in the formulation of biological insecticides are crucial to increase their stability and competitiveness in the market. The aim of this work was to evaluate the use of volcanic materials with different hydric retention capacities to increas...
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Sofía E. Garrido Hoyos, Martha Avilés Flores, A. Ramírez Gonzalez, Celia Grajeda Fajardo, Saúl Cardoso Zoloeta and Hayron Velásquez Orozco
The present study was conducted in Naranjo County located in the municipality of Mixco, Guatemala. The water supply source comes from two wells with a maximum flow of 25.24 and 33.44 L·s-1. The main problem with this source is the high arsenic concentrat...
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Guillermo Millán, Florencia Agosto, Mabel Vázquez
Pág. 293 - 302
The properties of clinoptilolite related to cationic exchange and ionic selectivity have motivated us to study its application for agronomic purposes. The high potential of the clinoptilolite has been demonstrated as a vehicle for nitrogen fertiliz...
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