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利用玉米芯生物炭和：混合处理及动力学研究对亮绿染料废水进行重复利用。

Reusability of brilliant green dye contaminated wastewater using corncob biochar and : hybrid treatment and kinetic studies.

机构信息

Department of Chemical Engineering and Technology, IIT(BHU) , Varanasi, India.

Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR) , Lucknow, India.

出版信息

Bioengineered. 2020 Dec;11(1):743-758. doi: 10.1080/21655979.2020.1788353.

DOI:10.1080/21655979.2020.1788353
PMID:32631112
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8291847/
Abstract

This work highlights the potential of corncob biochar (CCBC) and for the decolorization of brilliant green (BG) dye from synthetically prepared contaminated wastewater. The CCBC was characterized by proximate, Fourier-transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller analysis, respectively. Different parameters affecting the adsorption process were evaluated. The experimental results were analyzed by the Langmuir and Freundlich isotherm models. Kinetic results were examined by different models; pseudo-second-order model has shown the best fit to the experimental data. Anew positive values of (172.58 kJ/mol) and (569.97 J/K/mol) in the temperature range of 303-318  revealed that the adsorption process was spontaneous and endothermic. The present investigation showed that the bacteria immobilized with CCBC showed better BG dye degradation. The kinetic parameters, , and μ were found to be 0.5 per day, 39.4 mg/day, and 0.012 L/mg/day using Monod model, respectively. The adsorbent with bacteria showed good potential for the removal of cationic BG dye and can be considered for the remediation of industrial effluent.

摘要

本研究工作重点介绍了玉米芯生物炭（CCBC）和 对合成制备的受污染废水中碱性绿（BG）染料的脱色能力。CCBC 分别通过近似分析、傅里叶变换红外光谱、扫描电子显微镜、X 射线衍射和 Brunauer-Emmett-Teller 分析进行了表征。评估了影响吸附过程的不同参数。通过 Langmuir 和 Freundlich 等温线模型对实验结果进行了分析。通过不同模型对动力学结果进行了检验；伪二阶模型对实验数据的拟合效果最佳。在 303-318 温度范围内， （172.58 kJ/mol）和 （569.97 J/K/mol）的新正值表明吸附过程是自发和吸热的。本研究表明，用 CCBC 固定化的细菌对 BG 染料的降解效果更好。使用 Monod 模型发现，动力学参数 、 、 和 μ 分别为 0.5 天 -1 、39.4 mg/天和 0.012 L/mg/天。负载细菌的吸附剂对阳离子 BG 染料具有良好的去除潜力，可考虑用于工业废水的修复。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/282002c87665/KBIE_A_1788353_F0008_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/03421612885d/KBIE_A_1788353_UF0001_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/4316ecd8049a/KBIE_A_1788353_F0001_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/10ac14160815/KBIE_A_1788353_F0002_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/977e28acb897/KBIE_A_1788353_F0003_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/5db7d3cdc605/KBIE_A_1788353_F0004_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/158cfba9d3a9/KBIE_A_1788353_F0005_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/e717527f285c/KBIE_A_1788353_F0006_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/07d4cd45851d/KBIE_A_1788353_F0007_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/282002c87665/KBIE_A_1788353_F0008_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/03421612885d/KBIE_A_1788353_UF0001_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/4316ecd8049a/KBIE_A_1788353_F0001_B.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/10ac14160815/KBIE_A_1788353_F0002_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/977e28acb897/KBIE_A_1788353_F0003_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/5db7d3cdc605/KBIE_A_1788353_F0004_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/158cfba9d3a9/KBIE_A_1788353_F0005_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/e717527f285c/KBIE_A_1788353_F0006_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/07d4cd45851d/KBIE_A_1788353_F0007_OC.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72e6/8291847/282002c87665/KBIE_A_1788353_F0008_OC.jpg

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