摘要
以赤泥为吸附剂,用静态吸附试验方法研究了赤泥对模拟含磷废水除磷的一般规律,并进而研究了其吸附动力学行为。结果表明,赤泥是一种有效的吸附剂,其静态吸附行为较符合Freundlich等温方程,15.5℃时其饱和吸附能力在0.766 mg/g。其动力学行为遵循Bangham方程和Elovich方程。影响赤泥除磷效果的主要因素有吸附时间、G值、溶液pH值和赤泥投加量。
The characteristics of phosphorus （P） removal from P wastewater by adsorption with red mud were studied in batch tests. In addition,its kinetic behavior was also studied. Results showed that red mud was a kind of effective adsorbent and Freundlich isotherm was more suitable to its batch tests behavior. The maximum P-adsorption capacity was 7.66 mg/g at 15.5℃. It was found that both Bangham and Elovich equations can be used to describe the kinetic behavior of adsorption. The main effects of P removal were adsorption time,G value,pH value and dosage of red mud.
出处
《安全与环境工程》
CAS
2005年第4期49-51,55,共4页
Safety and Environmental Engineering
关键词
赤泥
吸附
含磷废水
影响因素
red mud
adsorption
phosphorus wastewater
effective factors
