Deternunation Of The Most Ideal Conditions For Sewage Ater Treatment By Orthogonal Experiment Approach

Deternunation of the Most Ideal Conditions for Sewage aterTreatment by Orthogonal Experiment ApproachThis thesis analysed the principal influence factor of sewage water biotreatment(activated sludge process )using orthogonal experiment approach. the results indicated that the biodegradability rate (BOD5 'COD~,1. ) could be raised by hydrolytic acidification ,and it has hardly effect on the removal efficiencies for organic pollutant(COD) and phosphorus(P) in the case of BOD5~ CODCT 30. The effect of the hydraulic retention time(L-IRT) and temperature on the removal efficiencies of the COD and P isn't prominent in this experiment,but high temperature and little HRT can reduce consumed enern~'. The effect of the mire load (FM) is very prominent. FLi~h F M results in good removal efficiencies of COD and P. The effect of sludge retention time (SRT) on the P removal efficiency isn't notable: on the contrary, its influence on the COD removal efficiency is striking.The most ideal condition isbiodegradabiliw rate 30...