Short Review: Ceramic Foam Fabrication Techniques for Wastewater Treatment Application

Abstract

Abstract. Ceramic foam is a class of highly porous materials that are used for wide range of technological applications, specifically as absorbents and membrane for wastewater treatment process. Among the potential materials include silicon carbide (SiC), alumina (Al 2 O 3 ), zirconia (ZrO 2 ), titania (TiO 2 ), and silica (SiO 2 ). The review clarifies on the broad types of ceramic foam, and the common techniques of foam fabrication, such as polymeric sponge method, starch consolidation, direct foaming, and gel-casting of foam. The parameters of each fabrication techniques will be discussed crucial based on the new research findings in the field of ceramic foam.

An environmentally friendly process for preparing commercial ceramic foam composites based on frit/glass wastes

“…Closed‐cell ceramic foams are often used for thermal insulation and fire protection applications. Open‐cell ceramic foams, on the other hand, are specially used for molten metal filtration, diesel engine exhaust filters, and hot gas filtration 12 . They are also widely used as reinforcement material in the production of metal or polymer matrix composites 13 .…”

“…Open-cell ceramic foams, on the other hand, are specially used for molten metal filtration, diesel engine exhaust filters, and hot gas filtration. 12 They are also widely used as reinforcement material in the production of metal or polymer matrix composites. 13 Macro-porous ceramic foams are generally ceramic structures with a large pore volume between approximately 70% and 90% of the total volume.…”

Effect of the Operational Conditions in the Characteristics of Ceramic Foams Obtained from Quartz and Sodium Silicate

“…In order to overcome these drawbacks to the production of glass-ceramic foams, it is necessary to use inexpensive raw materials, diminish the energy consumption, and use alternative foaming agents that do not generate environmental critical gases through oxidation reactions or thermal decomposition [2,[7][8][9][10][11]. One inexpensive raw material used to produce cellular ceramics is the conventional quartz [12].…”

Farklı Bağlayıcı ve Sinterleme Katkılarının SiC Seramik Prefom Mikroyapısı Üzerine Etkisi

“…Kapalı hücreli seramik köpükler genellikle ısı yalıtımı ve yangın koruma uygulamaları için kullanılır. Açık hücreli seramik köpükler ise özellikle ergimiş metal filtrasyonu, dizel motor egzoz filtreleri ve sıcak gaz filtrasyonu için kullanılır [1]. Öte yandan, metal veya polimer matris kompozit üretiminde takviye malzemesi olarak da kullanımı yaygındır [2].…”

“…Ancak gözeneklerin genel morfolojisinde ve köpüklerin özelliklerinde farklılık gözlenmektedir. Seramik köpüklerde ana iskelet olarak silisyum karbür, alümina, zirkonya, silika yaygın kullanılmaktadır [1].…”