臭氧/生物活性炭工艺去除苯酚的试验研究

Removal of Phenol by Combined Process of Ozone and Biological Activated Carbon

研究了臭氧/生物活性炭(O3/BAC)工艺对微污染原水中苯酚的去除效果,并对其影响因素进行了分析。结果表明,O3/BAC工艺对苯酚的去除主要以氧化分解和生物降解作用为主,去除效果较好;当苯酚初始浓度升高时,出水苯酚浓度也随之升高;当存在一定浓度的Mn2+时,会提高O3/BAC工艺对苯酚的去除率;但当存在NH+4时,O3/BAC工艺对苯酚的去除效果会明显下降;另外,p H值的升高有利于O3/BAC工艺对苯酚的去除。

The efficiency of O3/BAC to remove phenol from micro-polluted raw water was studied, and the influencing factors were analyzed. The results showed that the oxidation and biological degrada- tion played an important role in the removal of phenol by O3/BAC with excellent removal efficiency. When the initial concentration of phenol was increased, the concentration of phenol in the effluent also in- creased gradually. When there was Mn2^＋ in phenol solution, the removal rate of phenol by O3/BAC was improved. In the presence of NH4＋ , the efficiency of O3/BAC to remove phenol was decreased signifi- cantly. In addition, higher pH value contributed to the removal of phenol by O3/BAC.