柚皮生物炭对模拟印染废水的吸附性能研究  

Study on adsorption performance of pomelo peel biochar on simulated dyeing wastewater

作　　者：薛美香 李世鹏 XUE Meixiang;LI Shipeng(College of Environmental and Biological Engineering,Putian University,Putian 351100,China;Fujian Provincial Key Laboratory of Ecology-Toxicological Effects&Control for Emerging Contaminants,Putian 351100,China;Key Laboratory of Ecological Environment and Information Atlas,Fujian Provincial University,Putian 351100,China)

机构地区：[1]莆田学院环境与生物工程学院,福建莆田351100 [2]福建省新型污染物生态毒理效应与控制实验室,福建莆田351100 [3]生态环境及其信息图谱福建省高等学校重点实验室,福建莆田351100

出　　处：《延边大学学报（自然科学版）》2021年第4期345-349,共5页Journal of Yanbian University（Natural Science Edition）

基　　金：福建省自然科学基金(2018J01439)。

摘　　要：为探究柚皮生物炭对印染废水的吸附性能,利用水热法炭化制备了柚皮生物炭吸附剂.采用扫描电子显微镜(SEM)、X射线衍射(XRD)和傅里叶红外光谱(FT-IR)对其进行了表征,并考察了吸附时间、吸附温度和溶液初始浓度等因素对其吸附模拟废水中中性红的影响.结果表明:当吸附剂用量为0.09 g、吸附时间为40 min、吸附温度为30℃时,柚皮生物炭对模拟废水中中性红的吸附效果最佳,为54.32 mg/g(模拟废水初始质量浓度为100 mg/L);其吸附过程符合Langmuir等温吸附模型,吸附动力学过程遵循准二级动力学模型.The pomelo peel-based biochar adsorbent was prepared by hydrothermal carbonization in order to explore the adsorption performance of pomelo peel on dyeing wastewater.It was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD)and Fourier transform infrared spectrum(FTIR).The effects of adsorption time,adsorption temperature and initial concentration of solution on the adsorption of neutral red simulated wastewater by the pomelo peel biochar were investigated.The results showed that when the amount of adsorbent was 0.09 g,the adsorption time was 40 min and the adsorption temperature was 30℃,the pomelo peel biochar’s adsorption effect on neutral red was the best and the adsorption capacity reached 54.32 mg/g(the initial concentration of the simulated wastewater was 100 mg/L).The adsorption of the pomelo peel biochar for neutral red was consistent with the Langmuir isotherm adsorption model,and the adsorption kinetic process followed the quasi-second-order kinetics equation.

关 键 词：生物炭 柚皮 吸附 中性红 

分 类 号：X703.1[环境科学与工程—环境工程]