scholarly journals Phosphate Mine Tailing Recycling in Membrane Filter Manufacturing: Microstructure and Filtration Suitability

Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 318 ◽  
Author(s):  
Mohamed Loutou ◽  
Wafa Misrar ◽  
Mohammed Koudad ◽  
Mohammed Mansori ◽  
Liga Grase ◽  
...  
Keyword(s):  
Mine Tailings ◽  
Textile Industry ◽  
Ceramic Membrane ◽  
Membrane Filter ◽  
Mercury Porosimetry ◽  
Industrial Effluent ◽  
Ceramic Membranes ◽  
Effluent Treatment ◽  
Membrane Filters ◽  
Phosphate Mine

Ceramic membrane filters based on industrial by-products can be considered to be a valorization alternative of phosphate mine tailings, even more so if these ceramic membranes are used in the industrial wastewater treatment due to their good mechanical, chemical, and thermal resistance. The depollution of textile industry rejections with this method has not been studied in detail previously. In this work, ceramic membrane filters have been manufactured from natural clay and phosphate mine tailings (phosphate sludge). Blends of the abovementioned materials with a pore-forming agent (sawdust, up to 20 wt. %) were investigated in the range 900–1100 °C using thermal analysis, X-ray diffraction, scanning electron microscopy, and mercury porosimetry. Ceramic properties were measured as a function of firing temperature and sawdust addition. Filtration tests were carried out on samples with advantageous properties. The results showed that gehlenite together with diopside neoformed from lime decomposed carbonates and breakdown products of clay minerals, while calcium phosphate derived from partial decomposition of fluorapatite. Both quartz and fluorapatite resisted heating. The results of the experimental design showed that the variations of physical properties versus processing factors were well described by the polynomial model. Filtration results are quite interesting, allowing these membranes to be used in industrial effluent treatment.

Ceramic Membrane Made of Alumina Synthesized by Pechini Method for Application in Microfiltration Processes

2015 ◽  
Vol 820 ◽  
pp. 79-83 ◽  
Author(s):  
Mirele Costa da Silva ◽  
Francisco Nilson da Silva ◽  
Hélio de Lucena Lira ◽  
Normanda Lino de Freitas
Keyword(s):  
Total Mass ◽  
Pore Diameter ◽  
Ceramic Membrane ◽  
Pechini Method ◽  
Mercury Porosimetry ◽  
Ceramic Membranes ◽  
Chemical Methods ◽  
Average Pore ◽  
Total Mass Loss ◽  
Alpha Alumina

Given the diversity of areas in which applications of ceramic membranes are included, the literature has shown great interest of researchers to obtain these materials with powders synthesized by different chemical methods. Thus, this work aims at the synthesis of alumina by Pechini method, the 2:1 ratio of citric acid: metal cations, calcined to 1100°C, to obtain membranes. The synthesized powders were characterized by thermal analysis, XRD and particle size distribution, since the membranes were characterized by SEM and mercury porosimetry. The results for the obtained powders showed total mass loss of 61.60%, an alpha-alumina phase with crystallite size of 45.2 nm. As for the membranes, these showed heterogeneously distributed particles with different sizes and irregular geometry, reaching average pore diameter of 0.6 μm me 47% porosity, and thus are characterized for application in microfiltration processes.

scholarly journals Synthesis of zeolite A using the waste of iron mine tailings dam and its application for industrial effluent treatment

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Juliana de Carvalho Izidoro ◽  
Michelle Caroline Kim ◽  
Valentina Ferraraccio Bellelli ◽  
Mara Cristina Pane ◽  
Amilton Barbosa Botelho Junior ◽  
...  
Keyword(s):  
Mine Tailings ◽  
Industrial Effluent ◽  
Effluent Treatment ◽  
Tailings Dam ◽  
Zeolite A ◽  
Iron Mine ◽  
Industrial Effluent Treatment

Study of the Influence of Granite Residue in Different Compositions to Prepare Ceramic Membranes

2014 ◽  
Vol 798-799 ◽  
pp. 542-547 ◽  
Author(s):  
Rosa Carmo Oliveira Lima ◽  
H.L. Lira ◽  
G.A. Neves ◽  
M.C. Silva ◽  
K.B. França
Keyword(s):  
Ceramic Membrane ◽  
Raw Materials ◽  
Ceramic Body ◽  
Mercury Porosimetry ◽  
Morphological Characteristics ◽  
Ceramic Membranes ◽  
Flux Measurements ◽  
Dark Color ◽  
Scanning Electron

The exploitation and processing of granite is responsible for generating large quantities of residue, mainly in the sawing step where is producing a dark color mud that is generally discharged directly in the environment without any treatment. The use of granite residue in the production of red ceramic has been widely studied and has shown promising results. The aim of this work is to verify the incorporation of granite residue in the preparation of tubular ceramic membrane in substitution of quartz. In this research it was done the characterization of the raw materials, the membrane preparation with different amount of granite residue and characterization of the membranes by scanning electron microscopy, mercury porosimetry and tangential flux measurements. The results showed that the changing in 10% of granite residue amount in the ceramic body was enough to change the morphological characteristics of the membranes.

Ceramic Membrane Made with Inorganic Residue

2017 ◽  
Vol 14 ◽  
pp. 60-85
Author(s):  
H. Lucena Lira ◽  
R.C. de Oliveira Lima ◽  
Iliana Oliveira Guimarães ◽  
G. Araújo Neves ◽  
R. Nóbrega Tavares ◽  
...  
Keyword(s):  
Pore Size ◽  
Water Flow ◽  
Ceramic Membrane ◽  
Average Particle Size ◽  
Ceramic Membranes ◽  
Industrial Wastes ◽  
Effluent Treatment ◽  
Average Particle ◽  
Flow Measurements ◽  
Mineralogical Characterization

Industrial wastes reuse becomes attractive to raw materials economy and to avoid environmental problems. The aim of this study is to develop and characterize tubular ceramic membranes using in their composition inorganic residues generated in the industries, such as, granite, alumina residue from calcination process and kaolin. Initially, it was performed the physical chemical and mineralogical characterization of the residues. Different formulations of ceramic masses have been studied with incorporation of residue, clay and additives for producing tubular membranes through the extrusion process. The membranes were characterized by SEM and flow measurements with distilled water. The membranes were applied to effluent treatment from textile and oil industry. The granite residue showed a high content of SiO2and Al2O3in its chemical composition and significant amount of iron and calcium oxides resulting from the granite processing. The granite residue presented average particle size of 13.98 µm. The residue from alumina process contain gibbsite and α-alumina, and average particles size of 15.68 µm. The residue from kaolin processing presented high content of quartz and alumina and average particles size of 29.0 µm. The tubular membrane produced with granite residue presented porosity from 17 to 30%, pores size in the range of 0.06 to 0.14µm and water flow from 10 (at 2 Bar) to 24 L/h.m2(at 4 Bar). These membranes retained 100% of indigo particles and was effective in the separation of indigo. The membrane prepared with alumina residue presented porosity close to 58% , pore size of 0.96 µm and water flow from 68 to 80 L/h.m2(at 2 Bar). These membranes were applied with successes in the separation of water from emulsion (100 ppm oil/water) with rejection above 96%. The membrane prepared with kaolin residue presented pore size from 0.16 to 0.22 µm, porosity from 41 to 44% and water flow from 53 to 70 L/h.m2. The ceramic membranes with industrial residues were successfully produced and applied in the treatment of industrial effluents.

scholarly journals Ceramic membrane overview and applications in textile industry: a review

2021 ◽  
Author(s):  
Meltem Ağtaş ◽  
Mehmet Dilaver ◽  
İsmail Koyuncu
Keyword(s):  
Textile Industry ◽  
Ceramic Membrane ◽  
Textile Wastewater ◽  
Ceramic Membranes ◽  
General Information ◽  
Water Recovery ◽  
Treatment Techniques ◽  
Textile Wastewater Treatment ◽  
Real Scale ◽  
Made In

Abstract The importance of water recovery and reuse is increasing day by day. Therefore, the use of advanced technologies is applied for the treatment and recovery of textile wastewater. The fact that ceramic membranes are resistant to the challenging characteristics of textile wastewater makes the use of ceramic membranes useful. Within the scope of this review, general information about the textile industry and treatment techniques are mentioned, as well as the properties of ceramic membranes and textile wastewater treatment. In the literature review made in this study, recent studies on the production of ceramic membranes and laboratory applications have been compiled. However, it has been observed that although the real-scale studies are relatively higher in industries such as the food and petrochemical industry, it is rather limited in the textile industry.

scholarly journals PENURUNAN KADAR Fe DENGAN MEMBRAN KERAMIK PADA AIR SUMUR (Studi Kasus Pada Wilayah Kerja Puskesmas Putat Jaya Tahun 2018)

2019 ◽  
Vol 16 (3) ◽  
Author(s):  
Anggit Prameitya ◽  
Darjati . ◽  
Ernita Sari
Keyword(s):  
Ceramic Membrane ◽  
Membrane Filter ◽  
Ceramic Membranes ◽  
Appropriate Technology ◽  
Well Water ◽  
Membrane Thickness ◽  
Clean Water ◽  
Filter Media ◽  
Filtration Method ◽  
Before And After

Water is the element of life that is essential for survival. Along with the rapid growth of the human being, the demand for water increases. Now this, many water sources are contaminated, clean one of the impacts that cause pollution is that there is content of Fe in the water. Fe is the secondary contaminants that become problems in the provision of clean water is especially groundwater. The content of Fe exceeds quality raw processing must be done first before used to clean water. This research aims to analyze Fe levels before and after filtration is done using ceramic membrane media with a thickness of 5 cm and 7 cm in well water.This research is experimental research, using design research True Experiment with form One Group Pretest-Posttest. The object of this research that is well water containing Fe levels with a total of 32 Research sample sample. Further data obtained were analyzed using analytical test in Paired-Samples T Test.The results showed that the ceramic membrane filter media thickness 5 cm and 7 cm is capable of lowering the average rate of 8.11 Fe mg/l be 5.9 mg/l and 3.6 mg/l. The results of statistical tests using Paired T-test Test earned the result that there is a difference Fe levels before and after treatment using ceramic membrane filter media with variations in the thickness of 5 cm and 7 cm.The conclusion of this research is the ceramic membrane thickness 7 cm has the difference decreased most in lowering levels of Fe on well water. It is recommended to increase the creativity in applying appropriate technology in filtration method. Keywords: water well, levels of Fe, ceramic membranes

scholarly journals Synthesis of zeolite A using the waste of iron mine tailings dam and its application for industrial effluent treatment

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Juliana de Carvalho Izidoro ◽  
Michelle Caroline Kim ◽  
Valentina Ferraraccio Bellelli ◽  
Mara Cristina Pane ◽  
Amilton Barbosa Botelho Junior ◽  
...  
Keyword(s):  
Mine Tailings ◽  
Industrial Effluent ◽  
Effluent Treatment ◽  
Tailings Dam ◽  
Zeolite A ◽  
Iron Mine ◽  
Industrial Effluent Treatment

Use of Ceramic Membrane for Indigo Separation in Effluent from Textile Industry

2014 ◽  
Vol 798-799 ◽  
pp. 537-541 ◽  
Author(s):  
Rosa Carmo Oliveira Lima ◽  
H.L. Lira ◽  
G.A. Neves ◽  
M.C. Silva ◽  
K.B. França
Keyword(s):  
Pore Size ◽  
Environmental Impacts ◽  
National Economy ◽  
Textile Industry ◽  
Ceramic Membrane ◽  
Ceramic Membranes ◽  
Blue Dye ◽  
Tangential Flow

The production of fabrics is one important sectors of the national economy, especially in jeans production. During dyeing step, in the production of jeans, it is generate a large amount of wastewater rich in indigo, a strong blue dye that when released directly into the environment is responsible for several environmental impacts. The aim of this work is to study the use of microfiltration ceramic membranes for indigo separation in effluents from textile industry. Initially the ceramic membranes were characterized in relation to the pore size and tangential flux. It was produced an indigo solution whose concentration and composition similar to the effluent of textile industry. The solution was characterized and submitted to a filtration through ceramic membranes by tangential flow, by applying a pressure of 3 Bar. At the end it was verified that 99% of the indigo was retained.

scholarly journals Evaluation of Anionic Eco-Friendly Flocculants Prepared from Eucalyptus Pulps with Diverse Lignin Contents for Application in Effluent Treatment

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 25
Author(s):  
Kinga Grenda ◽  
José A. F. Gamelas ◽  
Julien Arnold ◽  
Lorenzo Pellizzer ◽  
Olivier J. Cayre ◽  
...  
Keyword(s):  
Textile Industry ◽  
Raw Materials ◽  
Industrial Effluent ◽  
Periodate Oxidation ◽  
Reaction Times ◽  
Water Soluble ◽  
Effluent Treatment ◽  
Hydrodynamic Diameter ◽  
Eucalyptus Wood ◽  
Different Characteristics

Modification of cellulosic-rich materials for the production of cellulose-based polyelectrolytes (PELs) can bring several benefits, such as high biodegradability and low or no toxicity, for numerous applications, when compared with the use of traditional, synthetic PELs. Moreover, cellulose-based PELs originating from wood wastes, contribute to the valorisation of such wastes. In this work, Eucalyptus pulps with diverse lignin contents, extracted from Eucalyptus wood wastes, were anionized by a two–step reaction procedure (periodate oxidation followed by sulfonation). Applying different reaction times (24–144 h) in the sulfonation step allowed for producing a range of cellulose-based anionic PELs with different characteristics. PELs obtained after 24 and 72 h of sulfonation were thoroughly characterized (Fourier transform infrared and 1H nuclear magnetic resonance spectroscopies, anionic group content (elemental analysis), zeta potential and hydrodynamic diameter (dynamic light scattering)) and subsequently evaluated as flocculants in decolouration processes of model effluents (Methylene Blue and Crystal Violet) and an industrial effluent from a textile industry. Furthermore, possible flocculation mechanisms induced by the use of the various PELs are discussed. Results are compared with those obtained with a commonly applied, synthetic flocculant (polyacrylamide). It is demonstrated that it was possible to obtain water-soluble lignocellulosic PELs starting from raw materials with different degrees of purity and that those PELs are promising eco-friendly alternative flocculation agents for the decolouration of effluents.

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