利用李壳生产活性炭处理含油污水

IF 1.6 Q3 WATER RESOURCES Water Practice and Technology Pub Date : 2023-02-10 DOI:10.2166/wpt.2023.018
Yessenbek Assylbek, M. Satayev, A. Azimov
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引用次数: 0

摘要

本研究的目的是在滚筒式蒸汽-气体活化炉中用李壳生产活性炭。为了研究活性炭的生产,使用了基于对单个图案的研究、比表面积的分析、多孔结构的测定、坑壳的结构吸附和物理化学特性的分析的方法。新颖之处在于研究确定活性炭的特性以及质量比为20:80的CO2和H2O流中的热活化温度对总孔体积的影响。在780°C的工艺温度下活化过程中,表面被强大的热活化破坏,因此形成了8-10μm的微孔,并形成了细胞结构。吸附动力学表明,对于氯仿提取的持续时间为0.5小时,对于己烷提取的油产品持续时间为2小时,以及吸附剂剂量为4kg/m3时,达到最大效率。对含油废水处理工艺的研究结果表明,活性李壳处理含油废水的效果(95.5%)大于混凝剂和粘土处理含油废水(88.5–71)%。
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Activated carbon production from plum pit shells for oily wastewater treatment
The aim of the research is the production of activated carbon from the plum pit shells in a drum-type steam-gas activation furnace. To study the production of activated carbon, methods were used based on the study of individual patterns, analysis of the specific surface, determination of the porous structure, analysis of the structural-sorption and physicochemical characteristics of the pit shell. The novelty is research on determining the characteristics of activated carbon and the effect of thermal activation temperature in a flow of CO2 and H2O in a mass ratio of 20:80 on the total pore volume. During activation at a process temperature of 780 °C, the surface was destroyed by powerful thermal activation, and as a result, micropores of 8–10 μm formed and a cell configuration arose. The adsorption kinetics showed that the maximum efficiency is achieved at a duration of 0.5 h for chloroform-extracted and 2 h for hexane-extracted oil products, as well as an adsorbent dose of 4 kg/m3. The results obtained in the research of the process of oily wastewater treatment showed that the effect of treatment with the activated plum pit shells (95.5%) is greater than the effect of treatment with coagulants and clays (88.5–71)%.
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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