Abstract:

In order to enhance the adsorption removal of organic pollutants by activated carbon fiber (ACF)，ACF is to be fixed on a dimensional stable anode (DSA) for improving its adsorption efficiency with the aid of the electric field. Tetracycline has been taken as a kind of target pollutant. The effect of impressed voltage，initial tetracycline concentration，the amount of ACF involved，reaction time，and initial pH are investigated. It proves that the tetracycline removal rate of ACF is the highest，when the impressed voltage is 1 000 mV within reaction time 60 min. Under acidic condition，the electrosorption removal capacity of ACF is the strongest，while under neutral condition the seond strongest and under alkaline condition the lowest.

Key words: activated carbon fiber, electrosorption, tetracycline, water treatment

摘要：

为了提高活性炭纤维(ACF)对有机污染物的吸附去除率,将活性炭纤维固定在形稳性阳极电极(DSA)上,借助电场提高其吸附率。以四环素为目标污染物,考察了外加电压、四环素初始浓度、活性炭纤维量、时间以及初始pH条件对电吸附效果的影响。结果表明,在60 min的反应时间内,当外加电压为1 000 mV时活性炭纤维对四环素的去除率最高。在酸性条件下活性炭纤维吸附能力最强,中性条件次之,碱性最差。

关键词: 活性炭纤维, 电吸附, 四环素, 水处理

CLC Number: 

• TQ234