By Evoqua Water Technologies
Organic compounds and silica are the species least strongly held by the ion exchange resins. After a period of use, the ion exchange capacity of a purification pack starts to be used up and these compounds are released first even before the resistivity has fallen much below 18.2 MO-cm.
Screening of humans for exposure to toxic pollutants in the environment is an important facet of occupational health and hygiene. The wide prevalence of trace levels of polyaromatic hydrocarbons and polychlorinated biphenyls from industrial processes means that in the Western world, screening for levels of these agents is becoming increasingly important.
Whatever industry you are in, modern business requires strong justification for any investments in solutions or technologies that enhance the main business. Often the question is about 'return on investment', or ROI. Typical questions asked by senior management are, 'What benefit would we get in monetary value from this technology?' and if they are convinced of the benefit, then 'How much does it cost?'