Biopolymer-Based Composites: An Eco-Friendly Alternative from Agricultural Waste Biomass

Girijappa, Yashas Gowda Thyavihalli; Nagaraju, Sharath Ballupete; Puttegowda, Madhu; Verma, Akarsh; Rangappa, Sanjay Mavinkere; Siengchin, Suchart

doi:10.3390/jcs7060242

Cited by 23 publications

(2 citation statements)

References 139 publications

(161 reference statements)

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“…This technique utilises the strength and environmental friendliness of bamboo fibres and aims to strengthen soil, prevent erosion, and improve bearing capacity. As a renewable raw material with biodegradable properties, bamboo offers a sustainable solution that takes environmental concerns into account (Aziz et al, 2023;Hasan et al, 2023;T. G. et al, 2023).…”

Section: Bamboo Fibrementioning

confidence: 99%

Review of Subgrade Soil Stabilised with Natural and Synthetic Fibres

Nathen,

Arshad,

Rais

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Subgrade soil is an essential component in the design of road structures as it provides lateral support to the roadway. One of the main reasons for pavement failure is subgrade settlement, which leads to a loss of subgrade strength. If the mechanical properties of subsoils are lower than required, a soil stabilisation method may be an option to improve the soil properties of the weak subsoil. Soil stabilisation is one of the techniques for improving poor subsoil, which results in significant improvement in tensile strength, shear strength and bearing capacity of subsoil. Soil stabilisation can be broadly divided into four types: thermal, electrical, mechanical, and chemical. The most common method of improving the physical and mechanical properties of soils is stabilisation with binders such as cement and lime. However, soil stabilisation with conventional methods using cement and lime has become uneconomical in recent years, so an alternative such as fibres may be sought. This review provides a comprehensive comparison of the effectiveness of natural fibres and synthetic fibres in stabilising subgrade soils.

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Section: Bamboo Fibrementioning

confidence: 99%

Review of Subgrade Soil Stabilised with Natural and Synthetic Fibres

Nathen,

Arshad,

Rais

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The notion of utilizing biological means to remove heavy metals is exceedingly appealing when juxtaposed with other conventional techniques because biological procedures are characterized by their cost-effectiveness, eco-friendly nature, and their exceptional efficiency when it comes to dealing with low concentrations of heavy metal ions in wastewater [52]. A wide range of heterogeneous biological entities, including various substances such as plant biomass, agricultural detritus, microbial biomass, nanoparticles synthesized through green methods, residual fruit matter, and biopolymers, have been effectively employed in the removal of heavy metals [53]. These aforementioned agents have demonstrated their efficacy in this role, and their use has been widely documented in the literature [54].…”

Section: Heavy Metal Removal Approachesmentioning

confidence: 99%

Microbial-Based Heavy Metal Bioremediation: Toxicity and Eco-Friendly Approaches to Heavy Metal Decontamination

2023

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There are several industrial processes in which heavy metals are used, including but not limited to chrome plating and tanning. Amongst the most toxic heavy metals to human health are arsenic, cadmium, chromium, lead, copper, nickel, and mercury. The aforementioned toxic metals possess the ability to cause contamination upon their release into the environment. Humans and aquatic and terrestrial animals are at risk from heavy metals in water and soil. Heavy metal toxicity has the potential to result in several health complications, such as renal and hepatic impairment, dermatological afflictions, cognitive lethargy, and potentially oncogenic manifestations. The removal of heavy metals from wastewater and soil can be accomplished using a variety of conventional methods, such as membrane filtration, reverse osmosis, chemical reduction, and adsorption. These methods have several disadvantages, such as generating an abundance of secondary pollutants, and entail significantly higher costs in comparison to biological methods. Conversely, eco-friendly techniques based on microbes have numerous advantages. This review provides a comprehensive overview of biological processes that remove heavy metal ions, both metabolically dependent and metabolically independent. Additionally, we also focused on the source and toxicity of these heavy metals. This study is expected to be particularly beneficial for the development of biological heavy metal treatment systems for soil and water.

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Mechanical and biodegradation analysis under various environmental conditions of the waste vetiver root fiber reinforced soy composite

Pattnaik,

Behera,

Jali

et al. 2024

Polymer International

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To address the difficulty posed by non‐biodegradable thermoplastics, scientists are focusing on solid waste management research. Waste vetiver root fibers reinforced in polymerized soy matrix biomass composites were fabricated and tested for biodegradability and sustainability in different natural decomposing conditions like seawater aging and fungal and termite attacks. This study reports and compares the dimensional changes caused by these attacks, as well as the moisture absorption of vetiver‐soy and alkali‐treated vetiver‐soy composites at different relative humidity. After‐degradation characterizations included Fourier transform infrared spectroscopy and SEM examinations, as well as weight loss, which gave additional insights into the degradation mechanism. The tensile strength of degraded samples decreased as the degradation duration increased. Mechanical properties like Izod impact strength, dynamic mechanical analysis and moisture absorption also provided insights into the structural firmness of the fabricated composite. This research contributes to a better knowledge of the bio‐deterioration process of cellulosic vetiver‐soy biocomposites under various situations, and to check their functionality in furniture and packaging industries. © 2024 Society of Chemical Industry.

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Biopolymer-Based Composites: An Eco-Friendly Alternative from Agricultural Waste Biomass

Cited by 23 publications

References 139 publications

Review of Subgrade Soil Stabilised with Natural and Synthetic Fibres

Review of Subgrade Soil Stabilised with Natural and Synthetic Fibres

Microbial-Based Heavy Metal Bioremediation: Toxicity and Eco-Friendly Approaches to Heavy Metal Decontamination

Mechanical and biodegradation analysis under various environmental conditions of the waste vetiver root fiber reinforced soy composite

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