纳米黏土涂层对吸附性陶瓷超滤膜系统的强化及腐殖酸去除的多元优化

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2024-10-30 DOI:10.1016/j.jwpe.2024.106388

Sama A. Al-Mutwalli , Mustafa N. Taher , Senem Yokus , Emine Can-Güven , Senem Yazici Guvenc , Derya Y. Koseoglu-Imer , Gamze Varank

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引用次数: 0

摘要

本研究考察了纳米粘土（NC）涂层陶瓷超滤膜对腐植酸（HA）的去除效果。首先，测定了 NC 的吸附容量，并进行了等温线、动力学和热力学研究。其次，测定了涂有 NC 的陶瓷超滤膜的 HA 去除效率。应用响应面方法之一的箱-贝肯设计（Box-Behnken Design）优化了膜过程的操作参数并建立了数学模型，同时进行了方差分析（ANOVA）以确定过程变量与系统响应（膜通量和 HA 去除率）之间的交互作用。达到最大 HA 去除效率的最佳工艺参数如下：HA 初始浓度：20.9 mg/L，初始 pH 值：3，温度：45.9 °C：45.9 °C.在最佳条件下，估计的 HA 去除率为 70.6%，而在为检验模型而进行的验证实验中，估计的 HA 去除率为 68.1%。研究结果表明，通过 NC 涂层陶瓷膜过滤，可以去除渗滤液 NF 浓缩物中大量的腐殖质。

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Intensification of adsorptive ceramic ultrafiltration membrane system by nanoclay coating and multivariate optimization of humic acid removal

In this study, humic acid (HA) removal was investigated by a ceramic ultrafiltration membrane coated with nanoclay (NC). First, the adsorption capacity of NC was determined, and isotherm, kinetic, and thermodynamic studies were conducted. Second, the HA removal efficiency of the NC-coated ceramic ultrafiltration membrane was determined. Box-Behnken Design, one of the response surface methodologies, was applied to optimize the operating parameters of the membrane process and develop a mathematical model, and analysis of variance (ANOVA) was performed to determine the interaction between the process variables and the system responses (membrane flux and HA removal). The optimum process parameters at which maximum HA removal efficiency was achieved were as follows: HA initial concentration: 20.9 mg/L, initial pH: 3, temperature: 45.9 °C. Under optimum conditions, the estimated HA removal efficiency was 70.6 % and it was 68.1 % in the validation experiments, which were conducted to check the model. The results of the study show that it is possible to remove high amounts of humic content from the leachate NF concentrate by NC-coated ceramic membrane filtration.

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies