systems than completed to do away with the bOD, cod with take off at the same time goodly the nitrogen divided by the phosphorus Synthesizing and dirty water in the river city, long sand City decontamination center[s of the dirty the factory of water in the first in Kunming of adoption that crafts handles the movement result of the factory therefore: Through Carrousel 2000 system after handling the BOD, COD, ss does away with the rate to all come to a 90% above the tn does away with the rate comes to a 80%, the tp does away ith the rate to a lso come to a 90% 3.2 The Carrousel oxidizes the ditch divideds by the phosphorus takes off the nitrogenous influence factor. Affecting the Carrousel oxidizes the ditch divideds by the phosphoric factor is dirty mire, nitrate density and quality densities primarily. The research expresses, being total and dirty mire as 11% that a hour biggest phosphorus 4% with deal is its fuck dirty mire deal within live and dirty mire keep for the the germ physical endowment measures but when dirty mire over 15 d hour dirty mire the inside is biggest to contain the obvious descent in deal in phosphorus, canning not reach the biggest divideding by the result of phosphorus on the contrary. Therefore prolong persistently the dirty mire for example 20ds, 25ds, 30ds) is to have no necessary, proper choose to use within the scope of 8N15 d At the same time high nitrate density with low qua lity density disadvantage in divided by the process of phosphorus Affecting the Carrousel oxidizes the ditch takes off the nitrogenous and main factor is do, nitrate density and carbon source densities. The research expresses oxidizing the ditch inside exsits deliquescence oxygen density steps degree namely the good oxygen area do attains 3w3 5 mgs/L, the anoxia area do attains ow0.5 mgs/ L is a prior condition to take place nitric turn reaction and versa nitricsystems, than completed to do away with the BOD, COD with take off at the same time goodly the nitrogen divided by the phosphorus . Synthesizing and dirty water in the river City , long sand City decontamination center[s of the dirty the factory of water in the first in Kunming of adoption that crafts handles the movement result of the factory therefore:Through Carrousel 2000 system after handling, the BOD, COD, SS does away with the rate to all come to a 90% above, the TN does away with the rate comes to a 80%, the TP does away with the rate to also come to a 90%. 3.2 The Carrousel oxidizes the ditch divideds by the phosphorus takes off the nitrogenous influence factor. Affecting the Carrousel oxidizes the ditch divideds by the phosphoric factor is dirty mire , nitrate density and quality densities primarily.The research expresses, being total and dirty mire as 11% that a hour biggest phosphorus 4% with deal is its fuck dirty mire deal within live and dirty mire, keep for the the germ physical endowment measures, but when dirty mire over 15 d hour dirty mire the inside is biggest to contain the obvious descent in deal in phosphorus , canning not reach the biggest divideding by the result of phosphorus on the contrary.Therefore, prolong persistently the dirty mire ( for example 20ds,25ds,30ds) is to have no necessary, proper choose to use within the scope of 8~15 d.At the same time, high nitrate density with low quality density disadvantage in divided by the process of phosphorus . Affecting the Carrousel oxidizes the ditch takes off the nitrogenous and main factor is DO, nitrate density and carbon source densities.The research expresses, oxidizing the ditch inside exsits deliquescence oxygen density steps degree namely the good oxygen area DO attains 3~3.5 mgs/ L, the anoxia area DO attains 0~0.5 mgs/ L is a prior condition to take place nitric turn reaction and versa nitrics