Essay On Organic Ion-Exchangers

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Water plays a great role in our body system. Different contaminants are released to the wastewater with the rapid industrialization of human society, including heavy metal ions, which are serious harmful to human health. Among all water contaminations, heavy metal ions such as Pb2+, Cd2+, Zn2+, Ni2+ and Hg2+ have high toxic properties, can cause severe health problems in animals and human beings [70]. In addition, industries have grown in large numbers throughout the world such as mining activities, refining, battery manufacture, paint production, chemical industries, dye industries and pharmaceutical industries etc. Among these, industries are creating a wide spread of pollution to the environment, especially the increased levels of heavy metals such as cadmium, lead, cobalt and mercury in to the soil and aquatic system; these heavy metals have highly hazardous and toxic nature which can affect the human health and living things. Generally, living systems near the industries would consume such heavy metal toxicity in…show more content…
The main limitations of synthetic organic ion-exchangers are their less radiation and thermal stability. Ion-exchange has been widely used to treat heavy metal-containing wastewater and most of the ion-exchangers currently being used are commercially mass-produced organic resins. Analysis of trace elements present as complex mixtures in natural and waste water in biological, industrial, and geological samples. The rapid development of electronic instrumentation has created powerful analytical tools but these can give erroneous results because of the presence of matrix elements, to obtain reliable data, the best course is to separate the analytes of interest from the matrix constituents and to determine them in the isolated state. Thus, preconcentration and separation by batch equilibration is mandatory, particularly when analytes are present at trace levels [74,

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