Today, with Increasing population and numerous droughts, as well as various sources of water pollution providing safe and sanitary water is one of the most important challenges. According to the World Health Organization (WHO), the cause of one in ten diseases and also the cause of six percent of deaths is due to lack of access to hygienic and safe water resources.
Clinoptilolite Zeolite due to valuable properties such as high cation exchange capacity, specific surface area and wide adsorption, porous structure which suitable for absorbing many materials and gases, as well as reasonable price and environmental compatibility and the possibility of simple regeneration are among the materials which have shown their ability in the field of water treatment.
Zeolite application in water treatment
Oxygen and ammonia are the two main problems in aquaculture ponds and aquariums. Ammonia concentrations control are often more difficult. Ammonia concentrations should be increased through urine, feces and fish meal residues. This gas in water dissolved produces ammonium ions, which is a toxic substance for aquatic animals. Accumulation of this substance inhibits the delivery of oxygen by hemoglobin and increases mortality in fishes.
clinoptilolite Zeolite has a unique ability to absorb ammonium ions. In addition, zeolite reduces ammonia production by mechanical filtration and adsorption of food debris. The ability of ammonium to be absorbed by different clinoptilolites varies and depends on various factors such as the consumed clinoptiloite purity, its cation exchange capacity as well as the type of dominant cation. Clino with higher purity, higher cation exchange capacity as well as potassium exchangeable cations show higher ability to absorb ammonium. Another problem of this industry is the amount of heavy metals and harmful substances that may be present in aquatic food and zeolite due to its adsorption properties, molecular sieve and cation exchange capacity also plays an important role in this field.
Contrary to popular belief, bad breath in swimming pools, redness and inflammation of the eyes, as well as skin sensitivity and itching are not directly related to free chlorine consumption, but often due to the presence of colamines, which are actually compounds of urea and other nitrogenous compounds in water. They are formed with free chlorine. Organic matter such as skin, hair and urine of swimmers are the cause of nitrogen compounds.
Conventional water treatment methods, such as silica sand filters, actually separate suspended solids from water. Clinoptilolite Zeolite has a very high ability to absorb ammonium ions and nitrogen and reduce the formation of chloramines, which are very problematic. By reducing the formation of chloramines, the consumption of chlorine is also reduced, and as a result, the costs of chlorination are reduced. Ability to adsorb suspended particles as well as mechanical filter with low price and lighter than ordinary sand used in swimming pools, this mineral can be well replaced with this material.
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