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Ammonia removal from nitrogenous industrial waste water using Iranian natural zeolite of clinoptilolite type

Ammonia removal from nitrogenous industrial waste water using Iranian natural zeolite of clinoptilolite type






Ammonia nitrogen is one of the most hazardous water pollutants, discharging into water receptors through industrial effluents. Negative environmental impacts of such chemical species in hydrosphere include accelerated eutrophication, water toxicity and harming the aquatics. Natural zeolite clinoptilolite has very high selectivity & capacity for ammonium cation sorption. It occurs in high abundances and rich mines of this […]






Isomorphous substitution of P(V) in natural clinoptilolite: evaluation of the product for removal of NO3 – , NO2 –  and F –  from aqueous solutions

Isomorphous substitution of P(V) in natural clinoptilolite: evaluation of the product for removal of NO3 – , NO2 – and F – from aqueous solutions






Nitrate is an anion of major importance particularly in biological areas. Excessive amounts in water supplies indicate pollution from sewage or agricultural effluents. The effects of excessive quantities of nitrate in water are well known. In this research structural modification of natural clinoptilolite by isomorphic substitution was performed. Isomorphously substituted zeolite was prepared under melting conditions from natural clinoptilolite. […]






Lead pollution removal from water via clinoptilolite fixed bed column

Lead pollution removal from water via clinoptilolite fixed bed column






Clinoptilolite (a natural zeolite) was used to investigate its adsorption capacity for the lead (II) ions from artificial polluted tap water in this study. For the experimental studies, Clinoptilolite mineral which is 25-140 mesh size was used by activating with HCl, and lead ion removal efficiencies were examined. Experiments were studied under laboratory batch and […]






Determination of apoptotic effects of clinoptilolite on human T lymphocytes

Determination of apoptotic effects of clinoptilolite on human T lymphocytes






Zeolites are defined as aluminum silicates that have  made up of oxygen, aluminum and silicon. SiO4 and Alo4 tetrahedrals are the smallest units that give the specific shape to the molecule. There are more than 40 types of natural and over 150 types of  synthetic zeolites occurs and those zeolites are used in agriculture, animal husbandry, architecture, pharmaceuticals and […]






The study of a reaction of Ca-clinoptilolite and human bile

The study of a reaction of Ca-clinoptilolite and human bile






The  calcium  exchanged  form  of   the  purified  natural  clinoptilolite  (NZ)  from  the  Tasajeras  deposit,  Cuba,  is the  active ingredient  o f  a drug  designed to  reduce total  blood  chole ste rol   and prevent atherosclerosis.  The  study  o f  the  Ca2+-NZ  –  human   bile  reaction  has  revealed  that  it occurs  through  the  adsorption  o f   three  […]






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