Effluent treatment adsorption technologies

DAF is used to remove suspended solids by decreasing their apparent density they then rise and float on the water surface. DAF is also used to remove soluble iron, VOCs, oils, and surface active agents by oxidation, air stripping, and surface adsorption. The flotation technology is becoming one of the most important technologies for groundwater decontamination, industrial effluent treatment, and water purification.58-6170... 

Adsorption technology, 13 794-795 Adsorptive air separation, 17 753 Adsorptive bubble separation effluent treatment, 9 432... 

As with gas purifications, very few process innovations are likely to occur with liquid purifications. Fixed-bed processes and processes in which powdered adsorbent is used will continue to predominate. If process technology is not likely to advance much, uses for the technology are. Perhaps the largest area for expanded use Is in municipal arid industrial waste treatment. Activated carbon adsorbs a wide spectmm of organics from water and can be useful in improving taste and lowering the concentrations of toxic or other objectionable materials. Also as chemical process effluents are reduced and more streams are recycled, additional adsorption processes will be required to remove traces of contaminants from these recycles. 

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