【摘要】 该文研究了臭氧-生物活性炭联用对苯酚的去除效果和影响因素,包括苯酚初始浓度、Mn2+离子、铵根离子、p H值、常规工艺等的影响。结果表明,随着苯酚初始浓度的升高,苯酚的降解速度下降;锰离子投加量增加而苯酚的去除率并不提高;对苯酚的去除效果随着铵根离子投量的增加而减小;随着p H值的升高,臭氧活性炭工艺对苯酚的去除效果表现为先快速上升而后趋于稳定;混凝、沉淀—臭氧活性炭组合工艺提高了苯酚的去除效果。臭氧-生物活性炭去除苯酚的主要机理是以氧化分解和生物降解为主。更多还原

【Abstract】 Removal effect and influencing factors of phenol by the ozone- biological activated carbon(O3+BAC)combined process were investigated, including the effect of initial phenol concentration, Mn2+ions, ammonium ions, p H value, the conventional process and so on. The results show that, the degradation efficiency of phenol is decreased with phenol concentration increased; The manganese ion dosage increase and the phenol removal efficiency does not increase;The removal efficiency of phenol decreases with increase of ammonium ion dosage. performance on the removal of phenol by O3+BAC for rapid increase first and then tends to be stable with the increasing of p H value; coagulation, precipitation and O3+BAC combined process improves the removal efficiency of phenol.The main mechanism of removing phenol by O3+BAC with oxidation and bio-degradation.更多还原