scholarly journals Influence of Conventional and Non-conventional Organic Sources of Plant Nutrients and Industrial Refuse for Yield and Quality Enhancement of Radish

Author(s):  
D. Venkatakrishnan ◽  
V. Arulkumar ◽  
P. Kamalakannan ◽  
V. Sathyaseelan

Background: India generates about 50 million tons of municipal solid wastes (MSW) every year. Composting MSW is viewed as a low-cost method of diverting organic wastes from landfills in to a valuable product of agricultural importance. Farm Yard Manure (FYM) is an organic matter rich with a small quantity of nitrogen, while rice hull ash is a good source of plant nutrients particularly of potash. Bagasse ash is a waste obtained from sugar industries and is capable of supplying significant amount of plant nutrients. The present investigation aimed to study the effect of organic sources of plant nutrients and industrial waste on yield and quality of radish as a supplementary source of plant nutrients.Methods: A pot trial investigation was carried out during 2019 at Annamalai University, Chidambaram, Tami Nadu to study the influence of conventional and non-conventional organic sources of plant nutrients and industrial refuse on yield and quality of radish. Under this trial, FYM (12.5 t ha-1), Municipal Solid Waste Compost (25 t ha-1), Rice hull ash (5 t ha-1), Bagasse ash (10 t ha-1) with 100% RDF and 75% RDF were tried.Result: The present investigation under pot trial showed that the maximum radish root yield, shoot yield and quality were observed due to the application of organic sources of plant nutrients of both conventional and non-conventional organic sources and industrial refuse.

2016 ◽  
Vol 864 ◽  
pp. 112-116
Author(s):  
Rinlee Butch M. Cervera ◽  
Emie A. Salamangkit-Mirasol

Rice hull or rice husk (RH) is an agricultural waste obtained from milling rice grains. Since RH has no commercial value and is difficult to use in agriculture, its volume is often reduced through open field burning which is an environmental hazard. In this study, amorphous nanosilica from Philippine waste RH was prepared via acid precipitation method. The synthesized samples were fully characterized for its microstructural properties. X-ray diffraction pattern reveals that the structure of the prepared sample is amorphous in nature while Fourier transform infrared spectrum showed the different vibration bands of the synthesized sample. Scanning electron microscopy (SEM) and particle size analysis (PSA) confirmed the presence of agglomerated silica particles. On the other hand, transmission electron microscopy (TEM) revealed an amorphous sample with grain sizes of about 5 to 20 nanometer range and has about 95 % purity according to EDS analyses. The elemental mapping also suggests that leaching of rice hull ash effectively removed the metallic impurity such as potassium element in the material. Hence, amorphous nanosilica was successfully prepared via a low-cost acid precipitation method from Philippine waste rice hull.


2005 ◽  
Vol 498-499 ◽  
pp. 676-680 ◽  
Author(s):  
A.A. Fernandes ◽  
E.U.C. Frajndlich ◽  
Humberto Gracher Riella

The high pure synthetic zeolite have a large application in industry and agriculture, being nowadays in majority imported in Brazil. The biomass like rice hull ash (RHA), a rice industry waste, can be real advantageous in manufacture of different materials, since that is produced in large scale in the country. The silica extraction from RHA by alkaline leaching is a low energetic coast process and high efficiency, obtaining high pure silica with high reactive amorphous structure, very interesting for zeolite production. In this work was developed a economically feasible route for the production of high purity and crystallinity ZSM-5 zeolite, free of expensive template, starting from a low value intake, a industrial waste, producing a high value materials. The extracted silica from RHA in sodium silicate form is precipitated in the proper zeolite formation reactional mixture. The ZSM-5 have a lot of industrial applications due your high selectivity in catalytic reactions and high thermal and acid stability.


2020 ◽  
Vol 22 (14) ◽  
pp. 4656-4668
Author(s):  
Eleni Temeche ◽  
Mengjie Yu ◽  
Richard M. Laine

The partial removal of SiO2 from rice hull ash (RHA, an agricultural waste) is a simple, low cost, eco-friendly method of producing high-performance electrode material for hybrid-lithium ion capacitors.


Author(s):  
A.A. Fernandes ◽  
E.U.C. Frajndlich ◽  
Humberto Gracher Riella
Keyword(s):  
Low Cost ◽  

Agrica ◽  
2016 ◽  
Vol 5 (1) ◽  
pp. 47
Author(s):  
Shri Prakash Yadav ◽  
S.C. Singh ◽  
A. K. Singh ◽  
A. K. Tiwari ◽  
S.K. Yadav ◽  
...  

2007 ◽  
Vol 554 ◽  
pp. 151-156
Author(s):  
N. Karakus ◽  
A.O. Kurt ◽  
O. Toplan

Structural ceramic parts such as those made from Si3N4 or SiAlONs are promising for considering them in replacing metals in the areas where harsh environmental conditions like abrasive corrosion under high stresses along with high temperature effects are dominant. A widespread use of these ceramics depends on the ease of finding them with low cost. This paper highlights some important points on the low cost production technique of Si3N4 or SiAlON ceramics in powdered form via carbothermal synthesis technique using minerals in the light of the current and previous works. The technique gives flexibility of controlling production parameters that affect on the yield and quality of powders produced. A special account is given to the effects of reactants on the production of such ceramic powders. After synthesising ceramics in powdered form, some comparisons were made on the characterisation of the products of homemade ones with that of commercially available ones. After successful experimental works, a raw material of orthoclase clay mineral exhibited a high transformation potential to a mixture of Si3N4 and SiAlON type ceramic powders.


2015 ◽  
Vol 654 ◽  
pp. 3-9 ◽  
Author(s):  
Sanjukta Dey ◽  
Sarama Bhattacharjee ◽  
Tapan K. Rout ◽  
Dilip K. Sengupta ◽  
Tetsuo Uchikoshi ◽  
...  

Non-aqueous solvents have been popularly used as suspending medium in Electrophoretic deposition (EPD) for several applications. The drawbacks of these solvents are that they cause environmental concerns and are expensive. Therefore, there is a great interest for the development aqueous EPD, which is low-cost and environmental friendly. There are several problems when using water as the suspending medium in EPD. First, there is gas evolution at the electrodes on application of the electric field. Hydrogen is generated at cathode and oxygen at anode. This results in incorporation of bubbles in deposits and the quality of deposit suffers. Several approaches, such as the use of pulse DC, asymmetric AC, and palladium electrode have been reported in the literature to overcome this problem.However, the biggest problem concerning aqueous EPD is reproducibility of deposition. As an example, in batch EPD of Al2O3 from aqueous suspension, we observed the best quality of deposition from the first deposit. Invariably, the amount and quality of deposit decreased progressively with increased number of deposition from the same suspension. For prolonged first deposition, the deterioration became severe and no deposition occurred from the second deposition onwards. This occurred even for cases when only a small fraction of the powder suspension is depleted in the first deposit. A closer look showed destabilized suspension and significant change in bulk pH of the suspension. Here, we measured the change in bulk pH as a function of time, and starting pH during water electrolysis as well as during aqueous EPD of Al2O3. The bulk pH of suspension increased with increasing time of deposition and with increasing applied voltages, resulting in progressive destabilization of suspension and decrease in deposit yield and quality. Use of suitable dosages of cationic dispersant polyethyleneimine (PEI) in the suspension decreased the extent of bulk pH variation during aqueous EPD.


2020 ◽  
Vol 10 (1) ◽  
pp. 16-24
Author(s):  
Aliru Olajide Mustapha ◽  
Amina Abiola Adebisi ◽  
Bukola Opeyemi Olanipekun

The waste cooking oil (WCO) is a low cost and prospective feedstock with no competitive food uses for biodiesel production, but the yield and quality have been greatly affected by impurities.  This study examined the chemical and fuel quality of biodiesel of both WCO and alkaline treated WCO.  The transesterification process using the alkaline treated cooking oil (ACO) methanol and sodium hydroxide as catalyst followed the Association of Officials of Analytical Chemists (AOAC) techniques. The pH values between 7.27 and 8.65 were found for alkaline treated cooking methyl ester (ACME), alkaline treated cooking oil (ACO) and WCO. Density of ACME, ACO and WCO varied between 0.89 and 0.93 (g/cm3). The fatty acids found were benzoic acid (3.77%), octanoic acid (8.35%), and palmitic acid (75.02%) – most abundant. Comparison of results with the American Standard for Testing Materials (ASTM) values showed quality enhancements of ACO in physicochemical and fuel properties over WCO. The biodiesels from ACO have enhanced emulsification, fuel and free fatty acids qualities over the WCO, showing the refinement methodology of WCO has overall improvement in the biodiesel purity and quality against the previous conflicting reports.


2015 ◽  
Vol 14 (3) ◽  
pp. 126-130 ◽  
Author(s):  
Yose Rizal ◽  
Maria Endo Mahata ◽  
Guoyao Wu ◽  
Hapris Maryudi ◽  
Mira Andriani

2019 ◽  
Vol 37 ◽  
Author(s):  
D. MARTINS ◽  
C.C. MARTINS ◽  
A.C. SILVA JR.

ABSTRACT: Floriculture and landscaping sector has the same problems as other crops regarding weed management. Weeds affect the yield and quality of the harvested product, in which the visual aspect and aesthetics stand out as the most important factors in flower production and landscaping. Weed control in floriculture and landscaping is critical and costly because maintaining the beauty of the product and the use of herbicides is a low-cost management tool compared to manual management. However, it implies knowing herbicide selectivity, as ornamental species may present some injury depending on the active ingredient and the degree of selectivity of the compound. Because the use of this practice in flower production and landscaping both abroad and mainly in Brazil is incipient, aspects of selectivity, chemical weed control, and safe application of different herbicides are addressed in this paper.


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