Gaowei Guo , Turghun Muhammad , Yiting Hu , Aikebaier Reheman
{"title":"Fixed-bed adsorption kinetics study of auramine O dye on non-imprinted polymers based on a real-time monitoring system","authors":"Gaowei Guo , Turghun Muhammad , Yiting Hu , Aikebaier Reheman","doi":"10.1016/j.jwpe.2025.107161","DOIUrl":null,"url":null,"abstract":"<div><div>Fixed-bed adsorption technology is one of the most important methods for removing pollutants like auramine O (AO) dye from environmental water. Traditionally, breakthrough curves are derived from laborious manual processes including effluent collection, sampling, and offline analysis, prone to significant errors and data scarcity. Herein, a fiber-optic sensing technique for online, real-time monitoring was applied to plot breakthrough curves during fixed-bed adsorption, addressing this inherent problem. A synthesized non-imprinted polymers (NIPs) adsorbent achieved adsorption capacity comparable to that of molecularly imprinted polymers. The adsorption capacity was 203.99 mg/g at a feed concentration of 15 mg/L, a feed flow rate of 3 mL/min, an adsorbent mass of 30 mg, a solution pH of 3, and a particle size range of 38–75 μm. Kinetic studies showed that the Dose-Response model was more suitable for predicting the adsorption of AO on NIPs. The adsorption capacity did not change significantly (RSD = 2.39 %) in 30 cycles of regeneration experiments on the NIPs fixed-bed. The technique offers the advantages of online detection and real-time monitoring, making it suitable for application in the adsorption and removal processes of environmental pollutants.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"71 ","pages":"Article 107161"},"PeriodicalIF":6.7000,"publicationDate":"2025-03-01","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/S2214714425002338","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/12 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Fixed-bed adsorption technology is one of the most important methods for removing pollutants like auramine O (AO) dye from environmental water. Traditionally, breakthrough curves are derived from laborious manual processes including effluent collection, sampling, and offline analysis, prone to significant errors and data scarcity. Herein, a fiber-optic sensing technique for online, real-time monitoring was applied to plot breakthrough curves during fixed-bed adsorption, addressing this inherent problem. A synthesized non-imprinted polymers (NIPs) adsorbent achieved adsorption capacity comparable to that of molecularly imprinted polymers. The adsorption capacity was 203.99 mg/g at a feed concentration of 15 mg/L, a feed flow rate of 3 mL/min, an adsorbent mass of 30 mg, a solution pH of 3, and a particle size range of 38–75 μm. Kinetic studies showed that the Dose-Response model was more suitable for predicting the adsorption of AO on NIPs. The adsorption capacity did not change significantly (RSD = 2.39 %) in 30 cycles of regeneration experiments on the NIPs fixed-bed. The technique offers the advantages of online detection and real-time monitoring, making it suitable for application in the adsorption and removal processes of environmental pollutants.
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
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
