The extensive use of color dyes in modern society has resulted serious concerns water contamination. Many organic bear charges; thus, materials opposite charges have been tested for sorptive removal. However, the results from several studies also showed that anionic methyl orange (MO) and alizarin red S (ARS) could be removed using minerals negative charges, but mechanisms were not addressed. I...

Clinoptilolite is used as an adsorbent to remove heavy metal cations due its function a molecular sieve. This sieve characteristic has made it possible study the efficiency of clinoptilolite and D-Penicillamine in comparative way terms adsorption metals (especially copper) from biological medium. For this purpose, was subjected grinding produce homogenized micronized powder two sizes with d90=7...

This work describes the newly discovered zeolites in eastern region of Cuba. In researched area, there have been no previous studies natural zeolite exploration. Therefore, results shown here are new. The main object this research is to analyse five samples and demonstrate their pozzolanic capacity possibility usage industrial manufacturing cements. study was performed by X-ray diffraction (XRD...

Nitrogen in the Ammonia form can have deleterious effects in water resources. Ion Exchange by zeolite and biological Nitrification processes are two proposed methods for removing Nitrogen compounds from wastewater and effluents. The main objective of this research was to investigate the efficiency of nitrifying bacteria for regenerating Clinoptilolite zeolite. In this research, the Semnan Clino...

Water is an essential nutrient for feedlot cattle. Drinking water may contain a variety of compounds. The important question is to what degree these substances impact water palatability and cattle health. The NRC in 1974 published limits for some potential problem causing substances in drinking water. Recommended safe upper limits for nitrate, sulfate, and total dissolved solids (TDS) were 440,...

Metal adsorption and surface charge determinations were performed previously on well-characterised Sphagnum and Carex peat samples. The aim of this investigation was to determine metal adsorption from complex wastewaters onto these peat samples and compare it to the adsorption onto peat granules, clinoptilolite, glauconite and a flue dust from steel production. A sulphide mine leachate, a landf...

The catalytic activity of natural and synthetic zeolites modified by ion exchange with cations Ni2+, Zn2+, Cu2+, Co2+, Bi2+ Pd2+ in the reaction propylene oxidative conversion molecular oxygen to acrolein was studied. Based on experimental data, it found that clinoptilolite Ni2+ cation exhibits highest selectivity question. conditions were studied