{"title":"Intensification of adsorptive ceramic ultrafiltration membrane system by nanoclay coating and multivariate optimization of humic acid removal","authors":"","doi":"10.1016/j.jwpe.2024.106388","DOIUrl":null,"url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":null,"pages":null},"PeriodicalIF":6.3000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714424016209","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
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.
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
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