Nutrient Removal in Sequential Batch Polishing Ponds

One of the main problems waste stabilization ponds (WSP) is that they cannot remove nutrients when treating wastewater. Polishing (PP) can efficiently nitrogen and phosphorus from effluents after efficient anaerobic pretreatment. It shown feasibility nutrient removal directly related to pH established in ponds. WSP normally operate at near neutral pH, but biological processes develop PP tend cause an elevation this, turn, triggers mechanisms In oxygen production by photosynthesis predominates over oxidation organic material. The net has equivalent CO2 consumption this induces increase pH. mechanism for was identified as desorption ammonia liquid phase with a uniform concentration profile process developed accordance Fick’s law. governing precipitation ions present wastewater, presumably calcium magnesium. be operated two different hydrodynamic regimes: flow-through (FTPP) sequential batch (SBPP) SBPP have advantage more rapid, final higher.