Investigation of the Effects of Rice Husk and Rice Straw on the Properties of Lightweight Fibrecrete Blocks

AbstractRecent studies have shown that silicon (Si) dissolution from biochar may be influenced by the pyrolysis temperature. In addition, the enhancement of biochar by treatment with alkali has been proposed to produce a Si source that can be used for environmentally friendly plant disease control. In this study, biochars from rice straw and rice husk pretreated with KOH, CaO and K2CO3 and then pyrolyzed at 350, 450 and 550 °C were prepared to evaluate the effects of pyrolysis temperature on Si release and plant uptake from alkali-enhanced Si-rich biochar. Extractable Si and dissolution Si from the prepared biochars were assessed by different short-term chemical methods and long-term (30-day) release in dilute acid and neutral salt solutions, respectively, along with a rice potting experiment in greenhouse. For both rice straw- and husk-derived alkali-enhanced biochars (RS-10KB and HS-10K2B, respectively), increasing the pyrolysis temperature from 350 to 550 °C generally had the highest extractable Si and increased Si content extracted by 5-day sodium carbonate and ammonium nitrate (5dSCAN) designated for fertilizer Si by 61–142%, whereas non-enhanced biochars had more extractable Si at 350 °C. The alkali-enhanced biochars produced at 550 °C pyrolysis temperature also released 82–172% and 27–79% more Si than that of 350 °C produced biochar in unbuffered weak acid and neutral salt solutions, respectively, over 30 days. In addition, alkali-enhanced biochars, especially that derived from rice husk at 550 °C facilitated 6–21% greater Si uptake by rice and 44–101% higher rice grain yields than lower temperature biochars, non-enhanced biochars, or conventional Si fertilizers (wollastonite and silicate calcium slag). Overall, this study demonstrated that 550 °C is more efficient than lower pyrolysis temperature for preparing alkali-enhanced biochar to improve Si release for plant growth.

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Karakterisasi Bionanofiller Dari Limbah Padi Sebagai Alternatif Penguatan Pada Polimer Komposit

Jurnal Serambi Engineering ◽

10.32672/jse.v3i2.717 ◽

2018 ◽

Vol 3 (2) ◽

Author(s):

Eryani . ◽

Sri Aprilia ◽

Farid Mulana

Keyword(s):

Rice Straw ◽

Rice Husk ◽

Rice Husk Ash ◽

Particle Density ◽

Agricultural Waste ◽

Xrd Analysis ◽

Silica Content ◽

Sem Analysis ◽

Agricultural Produce ◽

Mechanical Properties Characterization

<p>Agricultural waste such as rice straw, rice husk and rice husk ash have not been utilized properly. This waste of agricultural produce can actually be used as an alternative to bionanofiller because it contains an excellent source of silica. The silica content contained in the rice waste when combined with the polymer matrix can produce composites having high thermal and mechanical properties. Characterization of bionanofiller from this rice waste is done by SEM, XRF, FTIR, XRD and particle density. The result of SEM analysis from this rice waste is feasible to be used as filler because it has size 1 μm. Likewise with the results of XRF analysis that rice waste contains a high enough silica component that is 80.6255% - 89.83%. FTIR test results also show that bionanoparticles from rice waste have the same content of silica. In the XRD analysis the best selective gain of rice waste is found in rice husk ash which is characteristic of amorp silica at a range of 2ϴ = 22<br />. The largest density analysis of paddy waste was found in rice husk 0.0419 gr / cm , followed by rice straw by of 0.0417 gr / cm 3 and rice hulk ash 0.0407 g / cm 3</p>

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Investigation of Tribological Properties of Brake Pads by Using Rice Straw and Rice Husk Dust

Journal of Applied Sciences ◽

10.3923/jas.2009.377.381 ◽

2009 ◽

Vol 9 (2) ◽

pp. 377-381 ◽

Cited By ~ 19

Author(s):

Ibrahim Mutlu

Keyword(s):

Rice Straw ◽

Rice Husk ◽

Tribological Properties ◽

Brake Pads

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Performance of Zero Tillage Potato Cultivation with Different Mulch Materials in the South-Western Saline Area of Bangladesh

Proceedings ◽

10.3390/proceedings2019036029 ◽

2019 ◽

Vol 36 (1) ◽

pp. 29

Author(s):

Ali ◽

Shahadat ◽

Rashid

Keyword(s):

Rice Straw ◽

Rice Husk ◽

Dry Matter ◽

Block Design ◽

Winter Period ◽

Zero Tillage ◽

Area Index ◽

System Productivity ◽

Weed Growth ◽

Saline Area

Crop cultivation in the coastal saline area of Bangladesh during rabi season is limited due to late harvest of Aman rice, shorter winter period, difficulty in tillage, soil salinity, lack of fresh irrigation water etc. Zero tillage potato cultivation with mulching could minimize these obstacles and thereby increase system productivity. However, selection of mulching material is crucial for higher yield and economic return. An experiment was conducted at coastal saline area of Bangladesh during rabi 2018–19 to observe zero tillage potato performance under different mulch materials. Three locally available mulch materials were employed in the trial viz. rice straw (T1), rice husk (T2) and compost (T3) as control. Additionally, treatment T1 and T2 also received same amount of compost as T3. Results from single factor randomized complete block design with three replications showed that leaf dry matter, leaf area index and number of tuber per plant did not varied significantly. Significantly highest stem and root dry matter were found from T1 (69.56 kg ha−1) and T3 (138.92 kg ha−1), respectively. Rice husk (T2) produced numerically highest leaf dry matter (372.74 kg ha−1) and significantly lowest root dry matter (87.92 kg ha−1), which ultimately produced highest tuber yield (13.99 t ha−1) followed by rice straw (T1) (11.08 t ha−1). However, weed growth was highest in rice husk (1.16 t ha−1). Mulch treatments conserved 3.5 to 7.45% more moisture and 4.3% less salinity than control. Between two mulches rice straw is suggested for its profitability since it remains unused and readily available.

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Pyrolysis of agricultural biomass residues: Comparative study of corn cob, wheat straw, rice straw and rice husk

Bioresource Technology ◽

10.1016/j.biortech.2017.02.046 ◽

2017 ◽

Vol 237 ◽

pp. 57-63 ◽

Cited By ~ 153

Author(s):

Bijoy Biswas ◽

Nidhi Pandey ◽

Yashasvi Bisht ◽

Rawel Singh ◽

Jitendra Kumar ◽

...

Keyword(s):

Comparative Study ◽

Wheat Straw ◽

Rice Straw ◽

Rice Husk ◽

Corn Cob ◽

Agricultural Biomass ◽

Biomass Residues

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Comparative Study of Concrete made using Rice Husk Ash, Rice Straw Ash and Bamboo Leaf Ash

10.36375/prepare_u.iei.a191 ◽

2021 ◽

Author(s):

Rajiv Sharma Leihaothabam ◽

Khwairakpam Sachidananda

Keyword(s):

Comparative Study ◽

Rice Straw ◽

Rice Husk ◽

Rice Husk Ash ◽

Bamboo Leaf Ash ◽

Straw Ash

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PEMBERIAN ABU SEKAM PADI DAN JERAMI PADI UNTUK PERTUMBUHAN SERTA SERAPAN TANAMAN JAGUNG MANIS (Zea Mays L.) PADA TANAH ULTISOL DI KECAMATAN RANTAU SELATAN

JURNAL AGROPLASMA ◽

10.36987/agroplasma.v6i2.1566 ◽

2020 ◽

Vol 6 (2) ◽

pp. 12-18

Author(s):

Fitra Syawal Harahap ◽

Hilwa Walida

Keyword(s):

Plant Height ◽

Rice Straw ◽

Rice Husk ◽

Zea Mays L ◽

Sweet Corn ◽

Rice Husk Ash ◽

N Uptake ◽

Dry Weight ◽

P Uptake ◽

Dose Levels

Provision of Rice Husk Ash and Rice Straw for Growth of Sweet Corn (Zea Mays L) in Ultisol Land in Rantau Selatan District Labuhan Batu District aims to determine the effect of various types of rice husk ash and rice straw for growth and nutrient uptake of Sweet Corn experimental methods. The method used in this study was compiled in a factorial randomized block design consisting of 2 factors with 3 replications. Treatment I: Giving rice husk ash (M) with 4 dose levels (g / 5 kg BTKO), namely: M0 (0), M1 (10 ), M2 (20) and M3 (30) and Treatment II: Giving rice straw (K) compost with 4 dose levels (g / 5 kg BTKO), namely: K0 (0), K1 (25), K2 (50), K3 (75). The data obtained were statistically analyzed based on analysis of variance on each observed variable that was measured and tested further for real treatment using the Duncan Multiple Range Test (DMRT) at the 5% level. The parameters measured consist of. Plant height (cm), Plant Dry Weight, Plant U uptake, Plant U Uptake. The results of this study indicate that the administration of rice straw compost has a significant effect in increasing plant height, plant dry weight, N uptake and P uptake while rice husk ash has a significant effect in increasing plant N uptake but has no significant effect in increasing plant height, plant dry weight and P uptake of plants. Keywords: husk ash, rice straw, growth, nutrient uptake, corn, Rantau selatan

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Production, Characterization, and Evaluation of Pellets from Rice Harvest Residues

Energies ◽

10.3390/en13020479 ◽

2020 ◽

Vol 13 (2) ◽

pp. 479 ◽

Cited By ~ 3

Author(s):

Cristina Moliner ◽

Alberto Lagazzo ◽

Barbara Bosio ◽

Rodolfo Botter ◽

Elisabetta Arato

Keyword(s):

Moisture Content ◽

Rice Straw ◽

Rice Husk ◽

Mechanical Performance ◽

Chemical Properties ◽

Quality Standards ◽

Operational Conditions ◽

Diametral Compression ◽

Physical Chemical ◽

Physico Chemical

Pellets from residues from rice harvest (i.e., straw and husk) were produced and their main properties were evaluated. Firstly, rice straw pellets were produced at lab scale at varying operational conditions (i.e., load compression and wt % of feeding moisture content) to evaluate their suitability for palletization. Successively, rice straw and husk pellets were commercially produced. All the samples were characterized in terms of their main physical, chemical, and physico-chemical properties. In addition, axial/diametral compression and durability tests were performed to assess their mechanical performance. All the analyzed properties were compared with the established quality standards for non-woody pellets. In general, rice straw pellets presented suitable properties for their use as pelletized fuels. Rice husk pellets fell out of the standards in recommended size or durability and thus preliminary treatments might be required prior their use as fuels.

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