scholarly journals Polyolefine Composites Reinforced by Rice Husk and Saw Dust

10.5772/65264 ◽  
2016 ◽  
Author(s):  
Thi Thu Loan Doan ◽  
Hanna M. Brodowsky ◽  
Edith Mäder
Keyword(s):  
Rice Husk ◽  
Saw Dust

scholarly journals Feasibility of using fallen tea leaves as litter in broiler rearing

2012 ◽  
Vol 41 (1) ◽  
pp. 52-54
Author(s):  
S Chakma ◽  
MY Miah ◽  
A Ara ◽  
MH Kawsar
Keyword(s):  
Body Weight ◽  
Moisture Content ◽  
Rice Husk ◽  
The Body ◽  
Tea Leaves ◽  
Saw Dust ◽  
Wood Shavings ◽  
Wood Shaving ◽  
Ad Libitum ◽  
The Cost

One hundred eighty straight run day old Cobb-500 broilers were reared on rice husk, sawdust, wood shaving and chopped tea leaves litter up to 35 days of age. The broilers were fed ad libitum. At 35 days the body weight of chicken reared on sawdust attained the highest body weight (p<0.01) than other litters. FCR was the best on saw dust. The moisture content of different litters did not differ significantly. Oocyst population in rice husk was found to be higher (p<0.01) than those on other litters, except those reared on wood shaving. Moisture content of litters and oocyst population were positively correlated at 14 and 35 days and negatively correlated at 21 and 28 days of age. The litter cost per broiler and per kg broiler was the highest on rice husk (RH), intermediate on sawdust (SD), Wood shavings (WS) and the lowest on chopped fallen tea leaves (CFTL). It was concluded that it may be possible to minimize the cost of litter by using CFTL.http://dx.doi.org/10.3329/bjas.v41i1.11978

scholarly journals Arbuscular mycorrhizal fungi, selenium, sulfur, silica-gel and biochar reduce arsenic uptake in plant biomass and improve nutritional quality inPisum sativum

2019 ◽  
Author(s):  
Mohammad Zahangeer Alam ◽  
Md. Anamul Hoque ◽  
Golam Jalal Ahammed ◽  
Lynne Carpenter-Boggs
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Silica Gel ◽  
Rice Husk ◽  
Mycorrhizal Fungi ◽  
Nutritional Quality ◽  
Soil Amendment ◽  
Growth Parameters ◽  
Arbuscular Mycorrhizal ◽  
Food Chains ◽  
Saw Dust

AbstractArsenic (As) is a carcinogenic substance. It increased in crop grown in field soil from ground water irrigation. Subsequently As transport into the human body through food chains. The reduction of As transport in root, shoot and grain of pea genotypes is significantly important to protect human health. This research is focused on the biomass growth and alleviation of As accumulation in root, shoot and grain of pea genotypes in high As soil (30mgkg−1) amended with arbuscular mycorrhizal fungi (AMF), biochar (BC) of rice husk and saw dust, selenium (Se), silica- gel (Si), and sulfur (S). Shoot length, root, shoot and pod mass were generally higher in pea crops grown in soil amended with AMF, Se, Si- gel and S. Rice husk and saw dust BC less consistently increased some growth parameters, particularly in genotype BARI Motor 2. However, the BC’s more often reduced growth and pod mass. All treatments significantly reduced As concentration in tissues; As in grains was reduced on average 60% by any of the soil amendments. AMF, Se and Si- gel all were found more effective than BC for the reduction of As uptake in pea crops. As in grains was reduced 77% by AMF, 71% by Se and 69% by Si- gel on average. As in root, shoot, and grain was also affected by variety; in control treatments, total As uptake in plants pot−1of BARI Motor 1 and 3 was found 60 to 70% higher than BARI Motor 2. Comparing the variety and treatment with most As in grains (BARI Motor 1 control, 0.35 mg As kg−1) and least As in grains (BARI motor 1, 2 & 3 with AMF with 0.07 mg As kg−1), the choice of variety and soil amendment could reduce human intake of As through pea by 80%. It is recommended that choice of pea variety and soil amendment with AMF and Se have great potential for improving the nutritional quality of pea grown in As contaminated soil, as well as reducing As transfer to human bodies through food chains in pea crops.

scholarly journals Physico-Mechanical Properties of Particleboards Produced from Locally Sourced Materials

2018 ◽  
Vol 39 ◽  
pp. 112-118 ◽  
Author(s):  
Peter Pelumi Ikubanni ◽  
Adekunle Akanni Adeleke ◽  
Adeolu Adesoji Adediran ◽  
Olayinka Oluwole Agboola
Keyword(s):  
Rice Husk ◽  
Urea Formaldehyde ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Weight Percentage ◽  
Saw Dust ◽  
Percentage Ratio ◽  
Internal Bonding Strength ◽  
Composite Samples ◽  
Indoor And Outdoor

In this study, particleboard was produced from the blend of sawdust and rice husk with the inclusion of metallic chips and adhesives. Urea formaldehyde and gelatinous starch were used as adhesives. Particleboards (10 mm thickness) were made from varying weight percentage ratio of saw dust and rice husk using pressure in the neighbourhood of 3 N/mm2. The particleboard was tested to determine the density, modulus of rupture (MOR), modulus of elasticity (MOE) and internal bonding strength (IBS). The density of the particleboards developed varies from 762.86 to 801.60 kg/m3. The moisture content of the samples varied between 9.22% and 9.98%. The MOR, MOE and IB values varied between 5.08 MPa and 26.08 MPa; 75.38 MPa and 412.4 MPa; and 0.013 MPa to 0.07 MPa, respectively. Composite samples C, E and H values for MOR, MOE and IBS gave significant results which met with the EN, ANSI A 208.1 and USDA standards. Hence, the admixture of rice husk and sawdust together with UF adhesive will be suitable in producing particleboard that could be useful for indoor and outdoor purposes.

scholarly journals Performance Evaluation of Bitumen with Waste Materials

2019 ◽  
Vol 8 (4) ◽  
pp. 7127-7130
Keyword(s):  
Rice Husk ◽  
Fine Powder ◽  
Waste Materials ◽  
Filler Materials ◽  
Test Flash ◽  
Penetration Test ◽  
Saw Dust ◽  
Fire Point ◽  
Point Test ◽  
Marshall Stability

This examination researches the appropriateness of waste materials i.e., sawdust and rice husk as a filler materials in bitumen. The waste materials (Rice husk and Saw dust) were tried to decide its appropriateness in the bitumen asphalt. The suggestions are surmised upon the Marshall and volumetric properties. Reuse of waste item is perfect to lessen contamination, since transfer is diminished or dispensed with. In this examination, Rice husk and saw residue waste was ground utilizing a pounding ball to shape a fine powder. It was then sieved in 300µm. At the research center, Rice husk and saw residue were blended in with bitumen to supplant 5%, 10%, and 15% of the all the weight ,while 0% addressed the control test. The Penetration test, Softening Point test, Flash and Fire Point test, Viscosity test, Ductility test and Marshall Stability test were looked into in this examination on the mix degree on bitumen in with rice husk and saw dust. Rice husk and Sawdust were incorporated into bitumen and perfect rate is gotten the chance to improve the presentation of bitumen.

Kinetic and Thermodynamic Analysis of Thermal Decomposition of Deodar (Cedrus Deodara) Saw Dust and Rice Husk as Potential Feedstock for Pyrolysis

2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Tanveer Rasool ◽  
Vimal Chandra Srivastava ◽  
M. N. S. Khan
Keyword(s):  
Activation Energy ◽  
Free Energy ◽  
Gibbs Free Energy ◽  
Rice Husk ◽  
Nitrogen Atmosphere ◽  
Waste Biomass ◽  
Pyrolysis Kinetics ◽  
Cedrus Deodara ◽  
Saw Dust ◽  
Biomass Materials

Abstract A comparative study on thermal analysis of two waste biomass materials of Kashmir namely deodar (Cedrus deodara) saw dust (DSD) and rice husk (RH), was carried out at different heating rates of 10, 25, 50 and 100 °C min−1 in air and nitrogen atmospheres. The onset, peak and burnout temperatures and rates of decomposition of components were determined and compared to understand the combustion and pyrolysis kinetics of selected biomass materials using iso-conversional Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) models. The kinetic parameters calculated were in turn used to calculate the changes in thermodynamic parameters, the enthalpy (ΔH), the Gibbs free energy (ΔG) and the entropy (ΔS). The physicochemical characterisation was carried out by elemental analyser and FTIR spectroscopy. The average activation energy values for RH were found to be 107.6 and 101.2 kJ mol−1 in air atmosphere and 85.5 and 92.1 kJ mol−1 in nitrogen atmosphere based on KAS and OFW models, respectively. The activation energy for DSD on the other hand was found to be 89.9 and 95.3 kJ mol−1 in air, 179.2 and 180.6 kJ mol−1 under nitrogen atmosphere based on KAS and OFW models, respectively. The heating values of the two biomasses (~ 10 to16 MJ kg−1) and Gibbs free energy values (between 165 to 176 kJ mol−1) indicate that the selected biomass can not only prove to be potential feedstock for pyrolysis but also can become a useful source of energy and chemicals.

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