Al2O3凝聚蔗渣活性炭吸附处理酒糟

IF 0.6 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Acta Scientiarum-technology Pub Date : 2022-07-06 DOI:10.4025/actascitechnol.v44i1.56265

R. P. Nippes, P. D. Macruz, N. Fernandes, M. L. Gimenes

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引用次数: 2

摘要

以甘蔗渣为原料，以氧化铝(Al2O3)为原料制备活性炭并对其进行表征，并将其应用于混凝-絮凝预处理的酒液中，以降低酒液的毒性参数。通过结构分析、XRD、pHZPC、SEM和EDS等手段对吸附剂进行了表征。得到了吸附等温线、吸附动力学和热力学参数。Langmuir等温线模型与实验数据拟合较好，拟一阶模型最能反映吸附动力学。这个过程是自发的、放热的、熵增加的。混凝-絮凝/吸附联合工艺对降低酒渣的色度、浊度、COD、TOC和毒性等指标均有较好的效果，去除率分别为73.50%、96.06、72.65、76.08和78%。

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Treatment of vinasse by adsorption on activated carbon from sugarcane bagasse agglomerated with Al2O3

The objective of this work was to produce and characterize activated carbon from sugarcane bagasse agglomerated with Alumina (Al2O3) and apply it in treatment of vinasse pretreated by coagulation-flocculation to reduce the toxics parameters of vinasse. The adsorbent was characterized from textural analysis, XRD, pHZPC, SEM and EDS. Adsorption isotherms, adsorption kinetics and thermodynamic parameters of the process were obtained. The Langmuir isotherm model fitted the experimental data better and the pseudo-first-order model best represented the adsorption kinetics. The process was spontaneous, exothermic and with increased entropy. The combined coagulation-flocculation/adsorption process was efficient in reducing the parameters of color, turbidity, COD, TOC and toxicity of the vinasse with removal rates of 73.50, 96.06, 72.65, 76.08, 78% respectively.

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来源期刊

Acta Scientiarum-technology 综合性期刊-综合性期刊

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal publishes original articles in all areas of Technology, including: Engineerings, Physics, Chemistry, Mathematics, Statistics, Geosciences and Computation Sciences. To establish the public inscription of knowledge and its preservation; To publish results of research comprising ideas and new scientific suggestions; To publicize worldwide information and knowledge produced by the scientific community; To speech the process of scientific communication in Technology.