{"title":"α-Alumina (α-Al2O3) ceramic microfiltration membranes in industrial wastewater treatment: Production, design, filtration behavior and performance","authors":"Muhammet Ş.A. Eren, Hasan Arslanoğlu","doi":"10.1016/j.ceramint.2024.12.454","DOIUrl":null,"url":null,"abstract":"<div><div>There is a large amount of oily waste in the wastewater used in the metal industry. Oily wastewater is one of the most dangerous pollutants. New treatment methods are very expensive and ineffective. Nowadays, filtration or separation processes are useful for oily wastewater treatment. In this paper, microfiltration with tubular ceramic membrane from α-alumina (α-Al<sub>2</sub>O<sub>3</sub>) powder was synthesized for oily wastewater treatment. Cross flow velocity (CFV) and transmembrane pressure (TMP) were predicted to have an effect on the permeate flux over the working system, while CFV did not cause a noticeable improvement over the working system. The proposed operating conditions were the experimental set with TMP of 4 bar, CFV of 1 m/s and temperature of 37.5 °C. According to the results, it is proposed to replace this system with conventional wastewater treatment methods.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10234-10241"},"PeriodicalIF":5.1000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224061303","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
There is a large amount of oily waste in the wastewater used in the metal industry. Oily wastewater is one of the most dangerous pollutants. New treatment methods are very expensive and ineffective. Nowadays, filtration or separation processes are useful for oily wastewater treatment. In this paper, microfiltration with tubular ceramic membrane from α-alumina (α-Al2O3) powder was synthesized for oily wastewater treatment. Cross flow velocity (CFV) and transmembrane pressure (TMP) were predicted to have an effect on the permeate flux over the working system, while CFV did not cause a noticeable improvement over the working system. The proposed operating conditions were the experimental set with TMP of 4 bar, CFV of 1 m/s and temperature of 37.5 °C. According to the results, it is proposed to replace this system with conventional wastewater treatment methods.
期刊介绍:
Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties.
Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour.
Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.