Managing Plastic Microparticles In Water Treatment Processes
…Masses of large waste plastics floating in the oceans have been an issue of concern for many years. More recently, microplastic particles have been detected in seawater, freshwaters and drinking waters, including bottled waters and foods. Environmental plastics are a risk to aquatic organisms from ingestion; they are unsightly and indicative of gross mismanagement of disposal of plastic wastes. Plastics degrade very slowly over many years, and eventually produce microparticles generally roughly in the size range of about 1 to 10 µm (micrometer or micron, 1/1,000,000 of a meter) to perhaps as large as 5 mm (millimeter, 1/1,000 of a meter). Particles smaller than 1 µm could be called nanoparticles. Microplastic particles in surface freshwaters and especially treated drinking waters tend to be in the smaller size ranges (considerably less than 100 µm)….
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