| 软锰矿脱硫尾渣对刚果红的吸附性能 |
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| 引用本文： | 邱诚,李玫,李强林,吴菊珍,傅倩. 软锰矿脱硫尾渣对刚果红的吸附性能[J]. 印染助剂, 2020, 0(1): 37-41 |
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| 作者姓名： | 邱诚 李玫 李强林 吴菊珍 傅倩 |
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| 作者单位： | 成都工业学院国家城市污水处理及资源化工程技术研究中心工业废水处理分中心;成都工业学院智慧环保大数据研究中心;成都大学建筑与土木工程学院;成都工业学院材料与环境工程学院 |
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| 基金项目： | 2019年四川省科技计划重点项目(2019YFS0055) |
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| 摘 要： | 研究软锰矿脱硫尾渣(PDS)对刚果红的吸附性能。用软锰矿脱硫尾渣对刚果红模拟染料废水进行吸附实验,研究了PDS投加量、吸附时间、染料初始质量浓度和温度对吸附效果的影响。对于初始质量浓度为100 mg/L的刚果红溶液,尾渣的最佳投加量为2.4 g/L,去除率达98%;尾渣对刚果红的吸附在前5 min达到60%~70%,并在360 min后达到平衡;随着染料初始质量浓度的增大,单位吸附量上升,但去除率有所下降;温度升高有利于吸附。吸附过程符合伪二级动力学模型,红外光谱分析说明尾渣对刚果红存在化学吸附作用。
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| 关 键 词： | 软锰矿 尾渣 刚果红 吸附 |
Adsorption property of Congo red by pyrolusite desulfurization slag |
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| QIU Cheng,LI Mei,LI Qianglin,WU Juzhen,FU Qian. Adsorption property of Congo red by pyrolusite desulfurization slag[J]. Textile Auxiliaries, 2020, 0(1): 37-41 |
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| Authors: | QIU Cheng LI Mei LI Qianglin WU Juzhen FU Qian |
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| Affiliation: | (Sub-center of National Research Center for Urban Sewage Treatment and Utilization,Chengdu Technological University,Chengdu 611730,China;Institute of Intelligent Environmental Protection and Big Data,Chengdu Technological University,Chengdu 611730,China;School of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,China;Department of Material and Environmental Engineering,Chengdu Technological University,Chengdu 611730,China) |
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| Abstract: | The adsorption property of Congo red by pyrolusite desulfurization slag(PDS)was studied.The adsorption experiment of simulated dye wastewater containing Congo red was carried out with PDS.The ef⁃fects of PDS amount,adsorption time,initial concentration of dye and temperature on adsorption effect were studied.For 100 mg/L Congo red solution,the optimal PDS amount was 2.4 g/L,and the removal rate was 98%.The adsorption rate of Congo red by the slag reached 60%~70%in the first 5 min and reached equilibri⁃um after 360 min.With the increase of the initial mass concentration of dye,the unit adsorption capacity in⁃creased,but the removal rate decreased.The increase of temperature was beneficial to adsorption.The ad⁃sorption process was in accordance with pseudo second-order kinetic model.The infrared spectrum analysis showed that the adsorption of Congo red by the slag had chemical adsorption. |
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| Keywords: | pyrolusite slag Congo red adsorption |
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