Nitrogen removal system and method for wastewater treatment lagoons

摘要: A wastewater treatment process integrates a tidal nitration system with lagoon. Raw effluent enters lagoon having persistent anoxic or anaerobic state and long residence time to permit suspended solids settle the bottom, forming blanket of sludge. Water above sludge is comparatively clearer than raw influent. Discharge from clear water zone contains organic carbon, nitrogen, ammonia, other nutrients. In lagoon, complex carbohydrates fats are broken down into simpler compounds by bacterial action, substantial portion transformed carbon dioxide respiration, reducing BOD. Organic forms nitrogen ammonium ions action. Adjacent sump that takes cell, recycles which then discharges back