Characterization of a Water Clearing Treatment Residue and Its Application as Clay Ceramic Addition

2014 ◽  
Vol 775-776 ◽  
pp. 642-647
Author(s):  
Carolina Nascimento de Oliveira ◽  
Michelle Pereira Babisk ◽  
Fernando Vernilli ◽  
Veronica Scarpini Candido ◽  
Sergio Neves Monteiro ◽  
...  
Keyword(s):  
Raw Materials ◽  
Rupture Strength ◽  
Low Cost ◽  
Treatment Plant ◽  
Linear Shrinkage ◽  
Red Clay ◽  
Steel Making ◽  
Important Residue ◽  
Clay Ceramics

The addition of industrial residues into common red clay ceramic has been, from many decades, an alternative of using other low cost raw materials and, more recently, as an environmentally correct destination for polluting substances. An important residue, known as yellow sludge, is that generated at the water clearing stage (WCS) of a treatment plant by some heavy industries such as an integrated steel making. Since this yellow sludge residue is normally disposed in ways that pollutes water bodies, the objective of the present work was to characterize a WCS yellow sludge and investigate its addition into clay ceramics. The residue was characterized by X-ray fluorescence, particle size distribution and scanning electron microscopy. The addition was carried out up to 7.5 wt% followed by firing at 800oC. The added ceramics were evaluated in terms of water absorption, linear shrinkage, dry apparent density and flexural rupture strength. It was found that the residue addition does not practically alter the ceramic technical properties.

Characterization of a Quartzite Residue and its Application in Red Clay Ceramics

2014 ◽  
Vol 805 ◽  
pp. 541-546 ◽  
Author(s):  
Michelle Pereira Babisk ◽  
Wagner Souza Ribeiro ◽  
Mariane Costalonga de Aguiar ◽  
Sergio Neves Monteiro ◽  
Carlos Maurício Fontes Vieira ◽  
...  
Keyword(s):  
Ceramic Industry ◽  
Raw Materials ◽  
Red Clay ◽  
Northeast Region ◽  
Ornamental Stone ◽  
Clay Body ◽  
Clay Ceramics

The fabrication of conventional red clay ceramics products for civil construction, such as bricks and roofing tiles, normally uses other raw materials like sand, in addition to clay, as a way to condition the final ceramic properties. Quartzite residues, from ornamental stone processing in the northeast region of Brazil, could be used as possible conditioner material for clay body in a ceramic industry owing to its similar characteristics to common sand. In the present work, complementing a recent publication on the same materials, a quartzite residue was characterized and its potential as a red clay ceramic addition was evaluated for different composition up to 40 wt%. The results indicated economical advantages in association with some technical benefits.

scholarly journals Eco-Compatible Construction Materials Containing Ceramic Sludge and Packaging Glass Cullet

2021 ◽  
Vol 11 (8) ◽  
pp. 3545
Author(s):  
Fernanda Andreola ◽  
Isabella Lancellotti ◽  
Paolo Pozzi ◽  
Luisa Barbieri
Keyword(s):  
Raw Materials ◽  
Construction Materials ◽  
Treatment Plant ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
Linear Shrinkage ◽  
Glass Cullet ◽  
Commercial Glass ◽  
Packaging Glass ◽  
And Chemical Properties

This research reports results of eco-compatible building material obtained without natural raw materials. A mixture of sludge from a ceramic wastewater treatment plant and glass cullet from the urban collection was used to obtain high sintered products suitable to be used as covering floor/wall tiles in buildings. The fired samples were tested by water absorption, linear shrinkage, apparent density, and mechanical and chemical properties. Satisfactory results were achieved from densification properties and SEM/XRD analyses showed a compact polycrystalline microstructure with albite and wollastonite embedded in the glassy phase, similar to other commercial glass-ceramics. Besides, the products were obtained with a reduction of 200 °C with respect to the firing temperatures of commercial ones. Additionally, the realized materials were undergone to leaching test following Italian regulation to evaluate the mobility of hazardous ions present into the sludge. The data obtained verified that after thermal treatment the heavy metals were immobilized into the ceramic matrix without further environmental impact for the product use. The results of the research confirm that this valorization of matter using only residues produces glass ceramics high sintered suitable to be used as tile with technological properties similar or higher than commercial ones.

Production and characterization of biosurfactant from marine bacterium Inquilinus limosus KB3 grown on low-cost raw materials

2013 ◽  
Vol 63 (4) ◽  
pp. 1327-1339 ◽  
Author(s):  
Atipan Saimmai ◽  
Satianpong Udomsilp ◽  
Suppasil Maneerat
Keyword(s):  
Marine Bacterium ◽  
Raw Materials ◽  
Low Cost

Characterization of Elephant Grass Ash as a Potential Clay Ceramic Addition

2014 ◽  
Vol 805 ◽  
pp. 585-590 ◽  
Author(s):  
Aline Marcia Ferreira Dias da Silva ◽  
Karla Albernaz Sales ◽  
Veronica Scarpini Candido ◽  
Sergio Neves Monteiro ◽  
Carlos Maurício Fontes Vieira
Keyword(s):  
Electron Microscopy ◽  
Bottom Ash ◽  
Ceramic Production ◽  
Elephant Grass ◽  
Red Clay ◽  
Clay Body ◽  
Clay Ceramics ◽  
Fluxing Agent ◽  
Scanning Electron

The elephant grass (Pennicetum purpureum) is traditionally used both as fresh feedstock for cattle and, dried, as fuel for ceramic production in Campos dos Goytacazes, Brazil. In the present work the bottom ash generated after dry grass incineration in a ceramic furnace was characterized for a possible addition into red clay ceramics. The characterization comprised the ash morphology by laser microscopy, scanning electron microscopy coupled with EDS and thermal behavior by thermogravimetry as well as differential thermal analysis. These results indicated that the elephant grass ash could be added into a clay body not only as a fluxing agent but also to improve the particles compaction before firing.

Preparation and Characterization of ß-Tricalcium Phosphate via Wet Mechanochemical Treatment

2008 ◽  
Vol 368-372 ◽  
pp. 1166-1168 ◽  
Author(s):  
Tao Yu ◽  
Jian Dong Ye
Keyword(s):  
Tricalcium Phosphate ◽  
Raw Materials ◽  
Low Cost ◽  
Synthesis Method ◽  
Particle Diameter ◽  
Mechanochemical Treatment ◽  
Mechanochemical Reaction ◽  
Ftir Analysis ◽  
Hydrogen Phosphate

In this work, a simple, reproducible and low-cost synthesis method for the preparation of ß-tricalcium phosphate (ß-TCP) was developed. ß-TCP was prepared via wet mechanochemical treatment using calcium oxide and calcium hydrogen phosphate as raw materials. XRD and FTIR analysis indicated that the as-treated precursor was non-stoichiometric, poorly-crystallized carbonated hydroxyapatite (CHA) resulting from the mechanochemical reaction, and the crystalline ß-TCP powder was obtained by calcining the precursor at 800°C for 2 hours. SEM observation showed that the addition of surfactants could eliminate the agglomeration of the powder and well-dispersive ß-TCP powder with a particle diameter between 0.1 and 2.0 2m can be obtained.

scholarly journals Chemical and Biological Investigation of Organic Wastes of Frying Oils and Beef Fats: Valorization for Biodiesel Production

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yasmine Souissi ◽  
Meha Alouini ◽  
Wissem Mnif
Keyword(s):  
Raw Materials ◽  
Low Cost ◽  
Methyl Esters ◽  
Organic Wastes ◽  
Biodiesel Production ◽  
Biological Investigation ◽  
Frying Oils ◽  
Enzymatic Transesterification ◽  
Different Sources

The present study investigates the different approaches of biodiesel production by exploiting low cost feedstocks such as organic wastes of frying oils (WFO) and wastes of beef fats (WBF). The aim was to compare not only two different sources of waste raw materials but also different approaches of biodiesel production. Biodiesel which refers to fatty acid methyl esters (FAME) was produced by both chemical and enzymatic transesterification. The characterization of the biodiesel produced by both approaches was performed according to the European standard EN 14214. The results showed that the biological method gave a richer FAME biodiesel through the catalysis of whole-cell lipase. However, for the chemical method, better biodiesel physicochemical properties were observed for the two raw materials. Therefore, it would be interesting to compromise by optimizing the biological biodiesel production approach in order to obtain a better quality in coherence with EN 14214 requirements.

Preparation and characterization of low-cost high-performance mullite-quartz ceramic proppants for coal bed methane wells

2018 ◽  
Vol 25 (5) ◽  
pp. 957-961 ◽  
Author(s):  
Kaiyue Wang ◽  
Huijun Wang ◽  
Yi Zhou ◽  
Guomin Li ◽  
Yaqiao Wu ◽  
...  
Keyword(s):  
High Performance ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Low Cost ◽  
Quartz Ceramic ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Sintering Process ◽  
Flow Mechanism

AbstractIn this study, the mullite-quartz-based proppants were successfully prepared by using the coal gangue as the raw materials. Then, the effects of the additive and the sintering temperature on the composition, microstructure, and properties of the proppants were investigated. Results showed that the proppants sintered at 1250°C with the 10 wt% bauxite additive presented the best performance, which was very close to that of the quartz-proppant, and met the operational requirements of the 52 MPa coal bed methane wells. The viscous flow mechanism of the liquid phase formed during the sintering process also promoted the arrangement of the grains, thus benefiting the densification and the strength of the proppants.

Influence of the Granite Waste into a Clayey Ceramic Body for Rustic Wall Tiles

2012 ◽  
Vol 727-728 ◽  
pp. 1057-1062 ◽  
Author(s):  
Monica Castoldi Borlini Gadioli ◽  
Mariane Costalonga de Aguiar ◽  
Abiliane de Andrade Pazeto ◽  
Sérgio Neves Monteiro ◽  
Carlos Maurício Fontes Vieira
Keyword(s):  
Mechanical Strength ◽  
Water Absorption ◽  
Raw Materials ◽  
Rupture Strength ◽  
Ceramic Body ◽  
Linear Shrinkage ◽  
Ceramic Production ◽  
Ornamental Stones ◽  
Error Bar ◽  
Press Molding

This work has as its objective to evaluate the influence of a granite waste into a clayey ceramic body for obtaining of rustic wall tiles. As raw materials, a clayey ceramic body for red ceramic production and a granite waste, resulting from ornamental stones cutting with the multi-wire technology were used. Compositions using 0, 10, 20 and 30% of waste incorporated into ceramic body were prepared. Specimens were fabricated by uniaxial press-molding at 20 MPa and sintered at 1050°C. The following properties were determined: linear shrinkage, water absorption and flexural rupture strength. In general, within the error bar, there was no influence of the waste in the values of water absorption of the clayey ceramic body. The results showed that all investigated formulations used in this work for the production of rustic wall tiles attend the standards for water absorption and mechanical strength.

scholarly journals Identification of an appropriate body composition for red clay products

Cerâmica ◽  
2010 ◽  
Vol 56 (339) ◽  
pp. 285-290 ◽  
Author(s):  
P. Hettiarachchi ◽  
J. T. S. Motha ◽  
H. M. T. G. A. Pitawala
Keyword(s):  
Flexural Strength ◽  
Water Absorption ◽  
Raw Materials ◽  
Mineralogical Composition ◽  
Linear Shrinkage ◽  
The Body ◽  
Technological Properties ◽  
Red Clay ◽  
Silt Fraction ◽  
Quality Product

This study focuses on the identification of an appropriate composition of raw materials for ceramic products from commonly available red clays in Sri Lanka. The raw materials were characterized in terms of particle size distribution, chemical and mineralogical composition. Different formulations of samples were prepared, and the linear shrinkage, water absorption and flexural strength of the final products were measured. Microstructures of fired samples were observed under a scanning electron microscope. The best quality product was obtained when the sample contains a high amount of illite clay in a mixture of 80 wt.% clay-silt and 20 wt.% sand. The presence of higher concentrations of the metal oxides Na2O, K2O and Fe2O3 (total ~21 wt.%) in the clay-silt fraction of samples has resulted in obtaining higher technological properties of the body. The flexural strength and the water absorption of the product are 26.82 MPa and 6.51% respectively. If the raw materials contain lower amounts of the oxides Na2O, K2O and Fe2O3, higher amounts of clay-silt fraction (up to 90 wt.%) must be added to obtain an optimum quality product.

Preparation and Characterization of 3Y-ZrO2 Composite Ceramics

2018 ◽  
Vol 281 ◽  
pp. 189-194
Author(s):  
Yin Yan Ju ◽  
Xue Xian Gan ◽  
Jie Guang Song ◽  
Fang Wang ◽  
Qun Huang ◽  
...  
Keyword(s):  
Ball Milling ◽  
Bending Strength ◽  
Raw Materials ◽  
Microwave Sintering ◽  
Linear Shrinkage ◽  
Organic Substrate ◽  
Mass Ratio ◽  
Composite Ceramics ◽  
Surface Morphologies

Dense 3Y-ZrO2composite ceramics were prepared by using 3Y-ZrO2nanopowders as the raw materials, via the process of ball milling, granulating, molding and calcination.We investigated the microstructure, surface morphologies, the mechanical property, the density and linear shrinkage rate of the sintered ceramics and the effect of the ball milling technics and the sintering technics on the above properties of the3Y-ZrO2composite ceramics via SEM and testing. The results show that the most excellent technics in all was explored as follows: the ultrafine ball milling by adding zirconium balls of 2 mm at the speed of 35 r/min for 10 h, with the mass ratio of zirconium ball, water and mixed powders of 6:1:1, the granulaing with 1.5% PVA, the CIP, the pre-sintering to remove the organic substrate to 500°C and the microwave sintering from 20°C to 1450 °Cin 80 min in which the duration at 1450°C was 20 min and the natural cooling time of the samples was 90 min. And the 3Y-ZrO2composite ceramics obtained by this process have a relative density of 99.2%, bending strength of 1098 MPa, and a fracture toughness of 7.8 MPa·m1/2.

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