Comparison between Properties of Biochar Produced by Traditional and Controlled Pyrolysis

doi:10.21608/asejaiqjsae.2017.3720

Cited by 17 publications

(1 citation statement)

References 28 publications

(57 reference statements)

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“…Table 1 also indicates that organic amendments derived from rice husk had higher ash content than those derived from sugarcane bagasse. This could be due to the higher amount of Si in rice husk (El-gamal et al 2017). Si is a major component in the chemical structure of rice.…”

Section: Resultsmentioning

confidence: 99%

Impact of agricultural waste on the shrink–swell behavior and cracking dynamics of expansive soils

Malongweni

Kihara

Sato

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose The swelling characteristics and cracking of expansive clayey soils usually lead to their low yield, and as a result, large areas of expansive soils remain uncultivated and unproductive. There is a need for the development of simple, low-cost technologies which will bring these soils into production. The amendment of expansive clayey soils with agricultural waste products is a key goal for enhancing their production potential. Therefore, a study was conducted to evaluate the ameliorative effects of crop residues on the physiochemical and mechanical properties of expansive clayey soils. Method In this study, the potential soil amendments used include uncharred rice husk, rice husk biochar, uncharred sugarcane bagasse, and sugarcane bagasse biochar. The biochar was pyrolyzed at 450 °C. The amendments were applied into the soil at four applications rates: 0, 2, 5, and 10% by weight of soil (w/w), respectively. The mixture was then incubated in a glasshouse for 280 days. Results Charred and uncharred rice husk and sugarcane bagasse improved the physico-mechanical properties related to soil expansion. The liquid limit (LL), plastic limit (PL), plasticity (PI), coefficient of linier extensibility (COLE core), volumetric shrinkage (VS), fissures' dimensions, and crack area density (CAD) of the soil decreased with an increase in treatment application rate. On the contrary, saturated water content increased with an increase in dosage. Conclusions 10% level of amendment application resulted in significantly improved soil properties than either 2% or 5% doses. Moreover, 2% level of amendment application is more preferable than 5% according to feasibility and economic point of view.

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Section: Resultsmentioning

confidence: 99%

Impact of agricultural waste on the shrink–swell behavior and cracking dynamics of expansive soils

Malongweni

Kihara

Sato

et al. 2019

Int J Recycl Org Waste Agricult

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Naturally derived organic biochar as an alternative to commercially activated carbon in the oxygen removal of seafood processing wastewater

Dhinesh,

Aruna,

Manikandavelu

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThe seafood processing industries are tremendously increasing in numbers which eventually discharge a large quantity of wastewater with a high range of biochemical oxygen demand (BOD) and chemical oxygen demand (COD), directly into the aquatic environment. A high level of BOD and COD in wastewater pertains to a higher level of pollution which must be reduced to prevent hazardous impacts on ecosystems. The main objective of the research aimed to develop cost‐effective biochar and to remove BOD and COD from processing wastewater using two natural biomasses: water hyacinth and sugarcane bagasse.RESULTSNaOH‐treated and non‐treated biochar for both water hyacinth as well as sugarcane bagasse were prepared through the process of pyrolysis carried out at 600 °C with three different residence times of 30, 45 and 60 min. The wastewater was initially analyzed for BOD and COD levels. The results showed that among all the groups of biochars, the water hyacinth NaOH‐treated biochar pyrolyzed at 600 °C for 60 min exhibited significantly (P < 0.05) higher levels of reduction in BOD (86.6 ± 0.03%) and COD (94.3 ± 0.05%) at a residence time of 60 min in D2 (0.5 g (250 mL)−1). The maximum removal efficiency was observed for water hyacinth NaOH‐treated biochar pyrolyzed at 600 °C for 60 min.CONCLUSIONThe removal efficiencies of organic load revealed that the treated biochars exhibited a better reduction of nutrients. The biochar efficiencies when compared with those of activated carbon exhibited a higher removal level. The present research can be used to reduce BOD and COD levels in wastewater treatments. © 2024 Society of Chemical Industry (SCI).

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Production and Characterization of Biochar and Hybrid Produced from the Co-carbonization of Corn Husk and Low-Density Polyethylene Wastes

Amoloye

Abdulkareem

Adeniyi

2022

Bioenergy and Biochemical Processing Technologies

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Comparison between Properties of Biochar Produced by Traditional and Controlled Pyrolysis

Cited by 17 publications

References 28 publications

Impact of agricultural waste on the shrink–swell behavior and cracking dynamics of expansive soils

Impact of agricultural waste on the shrink–swell behavior and cracking dynamics of expansive soils

Naturally derived organic biochar as an alternative to commercially activated carbon in the oxygen removal of seafood processing wastewater

Production and Characterization of Biochar and Hybrid Produced from the Co-carbonization of Corn Husk and Low-Density Polyethylene Wastes

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