松针活性炭对酸性品红的吸附研究  

STUDY ON THE ADSORPTION OF PINE NEEDLES ACTIVE CARBON TO ACID FUCHSIN

作　　者：胡巧开 余中山 HU Qiaokai;YU Zhongshan(College of Urban and Environmental Sciences,Hubei Normal University Hubei Key Laboratory of Pollutant Analysis and Reuse Technique,Huangshi 435002,China)

机构地区：[1]湖北师范大学城市与环境学院污染物分析与资源化技术湖北省重点实验室,湖北黄石435002

出　　处：《离子交换与吸附》2018年第3期269-277,共9页Ion Exchange and Adsorption

基　　金：污染物分析与资源化技术湖北省重点实验室开放基金项目KL2013G04

摘　　要：以松树落叶在400℃煅烧30min后的松针活性炭作吸附剂,通过单因素实验考察了初始浓度、吸附剂用量、粒径、吸附时间、p H值等条件下,吸附剂对酸性品红模拟废水的吸附脱色效果;在此基础上的四因素三水平正交试验结果表明,当p H=6、转速为200r/min、吸附时间为35min时,0.3g吸附剂颗粒过90mesh筛的松针活性炭对100m L初始浓度为45mg/L的酸性品红溶液的脱色率达92.1%,稀释倍数为13倍,其水质色度指标达到国家《纺织染整工业水污染物排放标准》(GB 4287-2012)排放标准;等温吸附实验结果表明,松针活性炭吸附剂对酸性品红的吸附能较好地符合Freundlich吸附等温式方程,说明该吸附主要为多层吸附过程。Pine needles, which are easily to get from pine leaves and calcined for 30 minutes at 400℃, are used as raw materials to prepare activated carbon in order to investigate the adsorption effects on acid-fuchsin simulated wastewater by single factor experiments in this research, including initial acid-fuchsin concentration, adsorbent dosage and particle size of pine needles activated carbon, rotating speed, adsorption time and p H values. Based on them, orthogonal experiment with four factors and three levels shows that the removal rate of 100 mL acid-fuchsin solution after diluted for 13 times can be reached at 92.1% when initial acid-fuchsin concentration, adsorbent dosage and particle size of pine needles activated carbon, rotating speed, adsorption time and pH values was 45 mg/L, 0.3 g, 90 mesh, 200 r/min, 35 min and pH 6, respectively. The chromaticity color of treated water can meet the national ＂Discharge standards of water pollutants for dyeing and finishing of textile industry（GB 4287-2012）＂. The adsorption of pine needles for acid-fuchsin was greatly in accordance with Freundlich isotherm equation, Show that the adsorption process is mainly multilayer adsorption.

关 键 词：松针 活性炭 吸附 酸性品红 

分 类 号：O647[理学—物理化学]