Production and Characterization of Rice Husk Biochar and Kenaf Biochar for Value-Added Biochar Replacement for Potential Materials Adsorption

Abstract The recent implication of circular economy in Australia spurred the demand for waste material utilization for value-added product generations on a commercial scale. Therefore, this experimental study emphasized on agricultural waste biomass, rice husk (RH) as potential feedstock to produce valuable products. Rice husk biochar (RB) was obtained at temperature: 180 °C, pressure: 70 bar, reaction time: 20 min with water via hydrothermal carbonization (HTC), and the obtained biochar yield was 57.9%. Enhancement of zeta potential value from − 30.1 to − 10.6 mV in RB presented the higher suspension stability, and improvement of surface area and porosity in RB demonstrated the wastewater adsorption capacity. Along with that, an increase of crystallinity in RB, 60.5%, also indicates the enhancement of the catalytic performance of the material significantly more favorable to improve the adsorption efficiency of transitional compounds. In contrast, an increase of the atomic O/C ratio in RB, 0.51 delineated high breakdown of the cellulosic component, which is favorable for biofuel purpose. 13.98% SiO2 reduction in RB confirmed ash content minimization and better quality of fuel properties. Therefore, the rice husk biochar through HTC can be considered a suitable material for further application to treat wastewater and generate bioenergy.

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Production and characterization of a value added biochar mix using seaweed, rice husk and pine sawdust: A parametric study

Journal of Cleaner Production ◽

10.1016/j.jclepro.2018.08.002 ◽

2018 ◽

Vol 200 ◽

pp. 641-656 ◽

Cited By ~ 26

Author(s):

Goldy De Bhowmick ◽

Ajit K. Sarmah ◽

Ramkrishna Sen

Keyword(s):

Rice Husk ◽

Parametric Study ◽

Value Added ◽

Pine Sawdust ◽

A Value

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Chemical and physical characterization of rice husk biochar and ashes and their iron adsorption capacity

SN Applied Sciences ◽

10.1007/s42452-020-3088-2 ◽

2020 ◽

Vol 2 (7) ◽

Author(s):

Fabiane Figueiredo Severo ◽

Leandro Souza da Silva ◽

Janielly Silva Costa Moscôso ◽

Qamar Sarfaraz ◽

Luiz Fernando Rodrigues Júnior ◽

...

Keyword(s):

Adsorption Capacity ◽

Rice Husk ◽

Physical Characterization ◽

Rice Husk Biochar

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Characterization of Nitrogen Release in Modified Controlled-Release-Fertilizer using Rice Husk Biochar

International Journal of Technology ◽

10.14716/ijtech.v11i4.3520 ◽

2020 ◽

Vol 11 (4) ◽

pp. 774

Author(s):

Himawan Tri Bayu Murti Petrus ◽

Andreas Diga Pratama Putera ◽

Inasanti Pandan Wangi ◽

Muhammad Aulia Ramadhian ◽

Hendrik Setiawan ◽

...

Keyword(s):

Controlled Release ◽

Rice Husk ◽

Nitrogen Release ◽

Controlled Release Fertilizer ◽

Rice Husk Biochar

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Synthesis and Characterization of Rice Husk Biochar and its Application in the Adsorption Studies of Lead and Copper

International Research Journal of Pure and Applied Chemistry ◽

10.9734/irjpac/2021/v22i430402 ◽

2021 ◽

pp. 36-50

Author(s):

Alice Ndekei ◽

Muigai- Gitita ◽

Njagi Njomo ◽

Damaris Mbui

Keyword(s):

Aqueous Solution ◽

Metal Ions ◽

Adsorption Capacity ◽

Rice Husk ◽

Regression Coefficient ◽

Second Order ◽

Isotherm Model ◽

Pseudo Second Order ◽

Rice Husk Biochar

The present study aimed to use chemically activated rice husk biochar as an adsorbent for the removal of heavy metals from an aqueous solution. A series of the Rice husk biochar (RHB) samples were produced at different temperatures, as follows: 300, 400, 500, 600, and 700℃ for 2 hours each through pyrolysis process in Dalhan Scientific Muffle Furnace. The chemically treated rice husk biochar synthesized at 500℃ was used as potential char for removal of Cu(II) and Pb(II) from aqueous solutions. The sorption of these metal ions from an aqueous solution was determined after adsorption using Flame Atomic Absorption Spectrophotometry (AAS). The Shimadzu IR Affinity Fourier Transform Infra-Red Spectroscopy (FT-IR) was used for the characterization of rice husk char and it revealed the presence of OH, C=O, and COO- bonds which are responsible for heavy metal ions adsorption through chemisorption. The effect of adsorption parameters was determined that is; pyrolysis temperature which was found to be 500℃, the optimal contact time for the metal ions Cu (II) and Pb (II) was found to be 60 minutes, the optimum dosage was 0.250 g and optimum initial concentration was 2 mg/l. The kinetics were tested against pseudo-first order and pseudo-second order model as well Langmuir and Freundlich isotherms. Cu(II), adsorption process followed Pseudo-second order kinetics with regression coefficient (R2) 0.9942 and Langmuir isotherm model with R2 0.9895. For Pb(II), adsorption capacity followed Pseudo-second order kinetics with regression coefficient (R2) 0.99991 and Freundlich isotherm model with R2 0.96675 optimum equilibrium adsorption capacity of 0.5274 mg/g.

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Biodegradation Characteristics of Tacca leontopetaloides Thermoplastic Films under Controlled Composting Conditions

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.797.289 ◽

2019 ◽

Vol 797 ◽

pp. 289-295

Author(s):

Ainatul Mardhiah Mohd Amin ◽

Suhaila Mohd Sauid

Keyword(s):

Acetic Acid ◽

Rice Husk ◽

Chemical Structure ◽

Thermoplastic Starch ◽

Aerobic Biodegradation ◽

Scanning Electron Micrograph ◽

Ft Ir ◽

Ir Analysis ◽

Rice Husk Biochar

This paper represents the biodegradation characterization of thermoplastic starch (TPS) films derived from Tacca leontopetaloides starch; namely thermoplastic starch with glycerol as plasticizer (TPS/GLY), thermoplastic starch with glycerol added with acetic acid (TPS/ACE) and thermoplastic starch with glycerol added with acetic acid with rice husk biochar reinforcement (TPS/BCRH) after aerobic biodegradation under controlled composting conditions. From the experiments, scanning electron micrograph (SEM) of the films showed homogeneous and even surface before the biodegradation but changed into grainy and uneven after subjecting to 45 days of biodegradation. Mechanical properties of all TPS films reduced significantly as expected. Even so, adding rice husk biochar did offer some strength to the TPS formulation. However, Fourier transform infrared (FT-IR) analysis suggested that 45 days of aerobic biodegradation was not capable to alter the chemical structure of the films as the characteristic peaks of all films are quite similar to before the biodegradation took place. The study also found that Aspegillus sp was the degrading TPS microorganism.

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