Lecture 3

Armenante njit operations involved in the removal of

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Unformatted text preview: PIERO M. ARMENANTE NJIT Operations Involved in the Removal of Phosphorus in Wastewaters • Biological phosphorus utilization in activated sludge process • Chemical additions (metal salts or polymers) • Lime addition • Biological/chemical treatment PIERO M. ARMENANTE NJIT Operations Involved in the Removal of Organic Priority Pollutants in Wastewaters • Aerobic biological treatment • Anaerobic biological treatment • Biological treatment/activated carbon adsorption (PACT) • Chemical oxidation • Adsorption PIERO M. ARMENANTE NJIT Operations Involved in the Removal of Heavy Metals and Dissolved Inorganic Solids in Wastewaters • Chemical oxidation/reduction and precipitation • Ion exchange • Reverse osmosis • Ultrafiltration • Electrodialysis PIERO M. ARMENANTE NJIT Example of Heavy Metal Removal Wastewater Oxidation/ Reduction Precipitation To discharge or POTW Filtration PIERO M. ARMENANTE NJIT Example of Organic Chemical Removal Wastewater Reactant Addition Oxidation To discharge or POTW Adsorptio...
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