3D printing of porous low-temperature in-situ mullite ceramic using waste rice husk ash silica

The natural rise-husk charcoal was made by burned in a furnace at 230 °C. Carboxylic group (-COOH) was functionalized onto the charcoal by using oxalic acid in situ process. Fourier Transform Infrared Spectroscopy (FTIR) and morphology by Scanning Electron Microscope (SEM) demonstrated that the COOH-group was successfully functionalized on the charcoal and the particles were porous. The COOH-activated charcoal was applied for liming effluent treatment through a filtration media. Eight environmental load parameters was determined by the standard method. The results were compared with the standard permissible limits set by Inland Surface Water-Bangladesh Standards (ISW–BDS-ECR, 1997). It has been observed that the rice husk based activated carbons dramatically reduce the pollutants to permissible level. The removal efficiency of pH, Electrical Conductivity (EC), Total Suspended Solids (TSS), Total Dissolved Solids (TDS), Biological Oxygen Demand in 5 days at 20 °C (BOD5), Chemical Oxygen demand (COD), Total Alkalinity, S2- from liming effluent up to 40.0%, 85.89%, 98.8%, 81.32%, 96.74%, 78.6%, 97.15% and 79.61% respectively. In conclusion, the liming effluent simply recycled by filtration process and can be used for industrial purpose.

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Fresh Properties of Cementitious Materials Containing Rice Husk Ash for Construction 3D Printing

Journal of Materials in Civil Engineering ◽

10.1061/(asce)mt.1943-5533.0003230 ◽

2020 ◽

Vol 32 (8) ◽

pp. 04020195 ◽

Cited By ~ 5

Author(s):

Shravan Muthukrishnan ◽

Harn Wei Kua ◽

Ling Na Yu ◽

Jacky K. H. Chung

Keyword(s):

3D Printing ◽

Rice Husk ◽

Rice Husk Ash ◽

Cementitious Materials ◽

Fresh Properties

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Effects of Sintering Temperature on the Mullite-Based Ceramics Fabricated from Rice Husk Ash

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.873.65 ◽

2017 ◽

Vol 873 ◽

pp. 65-70

Author(s):

Rabiatul Adawiyah Abdul Wahab ◽

Mohd Ashmir Yahya ◽

Khamirul Amin Matori ◽

Wan Azlina Wan Abdul Karim Ghani

Keyword(s):

Bulk Density ◽

Rice Husk ◽

Rice Husk Ash ◽

Sintering Temperature ◽

Stoichiometric Composition ◽

Linear Shrinkage ◽

Al2o3 Content ◽

Mullite Ceramic ◽

X Ray ◽

High Dependency

Mullite-based ceramics were prepared by utilizing agriculture by-product called as rice husk ash (RHA) from untreated rice husk (RH) and commercial alumina powdermixtures. Various samples were prepared accordingly with the mullite stoichiometric composition and subjected to the uniaxial hydraulic press. The green bodies, then were sintered to various temperatures at 1200 °C, 1300 °C, 1350 °C, 1400 °C, 1450 °C and 1500 °C in an electric furnace. Physical and microstructural characterization were done such as bulk density (BD), linear shrinkage (LS), X-ray fluorescence (XRF), X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM). The sample M1, which composed the slightest RHA (40 %) was considered the optimum composition which produced the highest densification, 3.101 g/cm3 and the lowest linear shrinkage, 8.62 % which compareswith the theoretical mullite density. Besides, it is supported by the evidence of the presenceof mullite in the samples sintered 1300 °C (shown as elongated shape) as primary mullite and continued to grow at higher temperatures at 1400 °C (shown as equiaxed shape) as secondary mullite. The sintered samples showno evidence of mullite inearly at 1200 °C due to insufficient energy to diffuse for mullitization. As the sintering temperature increased, mullitization increased while decreasing the distribution of glassy phase and voids. The results revealed the high dependency of bulk density and linear shrinkage on the Al2O3 content and the values were gradually increased with the increase of sintering temperature. These findingsmay lead to the extended study ofthermal insulationmaterials as mullite ceramic is an excellent candidate for this application due to its properties.

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Rice Husk Ash/Calcium Oxide/Ceria Sorbent for Simultaneous Removal of Sulfur Dioxide and Nitric Oxide from Flue Gas at Low Temperature

Environmental Engineering Science ◽

10.1089/ees.2008.0370 ◽

2009 ◽

Vol 26 (7) ◽

pp. 1257-1265 ◽

Cited By ~ 3

Author(s):

Irvan Dahlan ◽

Keat Teong Lee ◽

Azlina Harun Kamaruddin ◽

Abdul Rahman Mohamed

Keyword(s):

Nitric Oxide ◽

Sulfur Dioxide ◽

Low Temperature ◽

Calcium Oxide ◽

Rice Husk ◽

Flue Gas ◽

Rice Husk Ash ◽

Simultaneous Removal

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Experimental research on preparation of high strength concrete with rice husk ash instead of silica fume

E3S Web of Conferences ◽

10.1051/e3sconf/202123301053 ◽

2021 ◽

Vol 233 ◽

pp. 01053

Author(s):

Yang Ming ◽

Pengliang Sun ◽

Ping Chen ◽

Yuanhao Wang ◽

Ling Li ◽

...

Keyword(s):

Low Temperature ◽

Silica Fume ◽

Experimental Research ◽

Rice Husk ◽

High Strength Concrete ◽

Rice Husk Ash ◽

High Strength ◽

Enhancement Effect ◽

Strength Concrete ◽

Grinding Time

The effect of grinding time on the properties of low-temperature rice husk ash was experimentally studied, and the feasibility of using rice husk ash instead of silica fume to prepare concrete was studied by comparison with silica fume. The results showed that the best grinding time of rice husk ash is 50 minutes, the concrete with similar properties can be prepared by replacing silica fume with super-fine rice husk ash, and the same enhancement effect can be achieved when replacing silica fume with more than 5%, and the performance was consistent.

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Terahertz Complex Refractive Index Properties of the Acrylonitrile Butadiene Styrene with Rice Husk Ash and Its Possible Applications to 3D Printing Technique

Optical Materials Express ◽

10.1364/ome.433534 ◽

2021 ◽

Author(s):

HSIN-YI PENG ◽

Chan Shan Yang ◽

YI-AN WEI ◽

YUN-CHI RUAN ◽

YOUNG-CHOU Hsu ◽

...

Keyword(s):

Refractive Index ◽

3D Printing ◽

Rice Husk ◽

Rice Husk Ash ◽

Complex Refractive Index ◽

Acrylonitrile Butadiene Styrene ◽

Index Properties ◽

Printing Technique ◽

3D Printing Technique ◽

Butadiene Styrene

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In situ casting of rice husk ash in metal organic frameworks induces enhanced CO2 capture performance

Scientific Reports ◽

10.1038/s41598-020-77213-9 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Debashis Panda ◽

Chanchal Saini ◽

E. Anil Kumar ◽

Sanjay Kumar Singh

Keyword(s):

Rice Husk ◽

Rice Husk Ash ◽

Agricultural Waste ◽

Total Pore Volume ◽

Isosteric Heat ◽

Micropore Volume ◽

Fine Tuning ◽

Bet Surface Area ◽

Metal Organic

AbstractIncorporation of rice-husk-ash (RHA), an agricultural waste, in situ during the synthesis of MIL-101(Cr) resulted in a significant improvement in the CO2 adsorption properties over the synthesized RHA-MIL-101(Cr). The newly synthesized RHA-MIL-101(Cr) composite exhibited an enhancement of 14–27% in CO2 adsorption capacity as compared to MIL-101(Cr) at 25 °C and 1 bar. The content of RHA incorporated in RHA-MIL-101(Cr) fine tuned the CO2 capture performance to achieve high working capacity (0.54 mmol g−1), high purity (78%), superior CO2/N2 selectivity (18) and low isosteric heat of adsorption (20–30 kJ mol−1). The observed superior CO2 adsorption performance of RHA-MIL-101(Cr) is attributed to the fine tuning of textural characteristics—enhancement of 12–27% in BET surface area, 12–33% in total pore volume and 18–30% in micropore volume—upon incorporation of RHA in MIL-101(Cr).

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Studying the Properties of SBS/Rice Husk Ash-Modified Asphalt Binder and Mixture

Advances in Materials Science and Engineering ◽

10.1155/2020/4545063 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11

Author(s):

Zhen Lu ◽

Aimin Sha ◽

Wentong Wang ◽

Junfeng Gao

Keyword(s):

Low Temperature ◽

Rice Husk ◽

Softening Point ◽

Rice Husk Ash ◽

Asphalt Binder ◽

Asphalt Mixture ◽

Modified Asphalt ◽

Temperature Performance ◽

Modified Asphalt Binder ◽

Rotational Viscosity

Sustainable materials in the field of road pavement have become a research direction in recent years. In this study, the rice husk ash with small dosage of styrene-butadiene-styrene (SBS) was added as a bioadditive into the base asphalt to modify its properties. Different contents (0, 2, 5, 10, and 15%) of rice husk ash (RHA) and 1% of SBS were selected to prepare the modified asphalt. Penetration, softening point, ductility, rotational viscosity test, and temperature sweep test were conducted to investigate the properties of SBS/RHA-modified asphalt binder. Rutting test, moisture susceptibility, and low-temperature cracking were utilized to evaluate the performances of SBS/RHA-modified asphalt mixture. The results showed that the penetration decreased and the softening point and rotational viscosity enhanced while the ductility slightly decreased with the incorporation of rice husk ash. The SBS/RHA-modified asphalt mixture had better high-temperature performance than that of the virgin asphalt mixture but slightly lower moisture stability and low temperature performance. The tensile strength ratio of the virgin and modified asphalt mixture met the requirement of specification. The tensile strain of mixture SR15 was lower than the requirement for the asphalt mixtures on the basis of the specification. For the SBS/RHA-modified asphalt binder based on the comprehensive properties, the content of rice husk ash should not be higher than 15%.

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