WASTEWATER TREATMENT TECHNOLOGIES – A BASIC …
Nitrogen and Phosphorus removal activated sludge processes no no yes yes no no no yes yes yes yes yes A Larger contributing community will require a more sophisticated plant Activated sludge process required for TN < 10 mg/ l High performance trickling filter with chemical phosphorus removal to achieve 10 <TN <20 P <1
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TOOLS AND APPROACHES - pseau.org
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Philippine Regulations on Sanitation and Wastewater …
www.pseau.orgdomestic, commercial, agricultural and industrial activities. Solid wastes and medical wastes maybe covered by some regulations if being disposed indiscriminately in land surfaces, drainage or bodies of water that will eventually affect the volume and quality of wastewater.
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www3.epa.govconventional treatment plants. The oxidation process originated in the Netherlands, Primary Sludge 0.5Q – 1Q Waste Activated Sludge Mixed Liquor Recirculation Secondary Clarifier Anoxic Aerobic Return Activated Sludge Primary Settling 3Q – 4Q Q Q Source: Parsons Engineering Science, Inc., 1999 FIGURE 2 THE MODIFIED LUDZACK-ETTINGER PROCESS