摘要
采用柚子皮粉末吸附水中Cu2+。通过单因素实验考察了温度、p H、Cu2+的初始浓度、吸附时间和投加量对吸附效果的影响。最佳吸附条件为:温度为室温,p H为6.0,Cu2+的初始浓度为20 mg/L,吸附时间为20 min,投加量为0.15 g/50 m L。在该条件下,吸附率能够达到60%以上。热力学和动力学试验表明吸附符合Langmuir等温吸附模式和准二级动力学模型。
Grapefruit husk powder was used as adsorbent to remove Cu^2＋ in wastewater. The effect of temperature, pH, initial concentration of Cu^2＋, adsorption time and adsorbent dosage on the adsorption rate was investigated by single factor experiments. The best conditions were determined as follows： room temperature, pH 6.0, absorption time 20 rain, adsorbent dosage 0.15 g/50 mL. Under above conditions, the absorption rate can reach more than 60%. Thermodynamic tests show that the absorption is consistent with Langmuir adsorption isotherm model. The kinetic data are well fitted with quasi-second-order kinetic model of adsorption.
出处
《辽宁化工》
CAS
2015年第2期116-118,共3页
Liaoning Chemical Industry
关键词
柚子皮粉末
吸附
CU2+
动力学
热力学
grapefruit husk powder
adsorption
Cu^2＋
kinetics
thermodynamics
