Organic waste-to-bioplastics: Conversion with eco-friendly technologies and approaches for sustainable environment

Ali, Zain; Abdullah, Muhammad; Yasin, Muhammad Talha; Amanat, Kinza; Ahmad, Khurshid; Ahmed, Ishfaq; Qaisrani, Muther Mansoor; Khan, Jallat

doi:10.1016/j.envres.2023.117949

Cited by 7 publications

(1 citation statement)

References 242 publications

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“…Previous literature has examined various facets of bioplastics, including their environmental benefits, production from different waste sources such as food, vegetables, downstream processing, and stability in different environments. For instance, Lavagnolo et al [ 41 ] delved into the stability of bioplastics in aquatic environments, while Gong et al [ 42 ] and Ali et al [ 43 ] summarized bioplastic production from fruit-vegetable residues and organic waste, respectively. Additionally, Bhat et al [ 44 ] addressed greener approaches for bioplastic recovery.…”

Section: Introductionmentioning

confidence: 99%

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Ahuja,

Singh,

Mahata

et al. 2024

Microb Cell Fact

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Background Plastic is widely utilized in packaging, frameworks, and as coverings material. Its overconsumption and slow degradation, pose threats to ecosystems due to its toxic effects. While polyhydroxyalkanoates (PHA) offer a sustainable alternative to petroleum-based plastics, their production costs present significant obstacles to global adoption. On the other side, a multitude of household and industrial activities generate substantial volumes of wastewater containing both organic and inorganic contaminants. This not only poses a threat to ecosystems but also presents opportunities to get benefits from the circular economy. Main body of abstract Production of bioplastics may be improved by using the nutrients and minerals in wastewater as a feedstock for microbial fermentation. Strategies like feast-famine culture, mixed-consortia culture, and integrated processes have been developed for PHA production from highly polluted wastewater with high organic loads. Various process parameters like organic loading rate, organic content (volatile fatty acids), dissolved oxygen, operating pH, and temperature also have critical roles in PHA accumulation in microbial biomass. Research advances are also going on in downstream and recovery of PHA utilizing a combination of physical and chemical (halogenated solvents, surfactants, green solvents) methods. This review highlights recent developments in upcycling wastewater resources into PHA, encompassing various production strategies, downstream processing methodologies, and techno-economic analyses. Short conclusion Organic carbon and nitrogen present in wastewater offer a promising, cost-effective source for producing bioplastic. Previous attempts have focused on enhancing productivity through optimizing culture systems and growth conditions. However, despite technological progress, significant challenges persist, such as low productivity, intricate downstream processing, scalability issues, and the properties of resulting PHA. Graphical abstract

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Section: Introductionmentioning

confidence: 99%

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Ahuja,

Singh,

Mahata

et al. 2024

Microb Cell Fact

View full text Add to dashboard Cite

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Crystallization behaviours regulations and thermostability enhancement strategy of polypropylene composites modified by dispersed rice husk charcoal

Shen,

Deng,

Feng

et al. 2024

J Polym Res

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Synergistic technologies for a circular economy: upcycling waste plastics and biomass

Osman,

Nasr,

Aniagor

et al. 2024

Front. Chem. Sci. Eng.

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The urgent need for sustainable waste management has led to the exploration of upcycling waste plastics and biomass as viable solutions. In 2018, global plastic production reached 359 million tonnes, with an estimated 12000 million tonnes projected to be delivered and disposed of in landfills by 2050. Unfortunately, current waste management practices result in only 19.5% of plastics being recycled, while the rest is either landfilled (55%) or incinerated (25.5%). The improper disposal of plastics contributes to issues such as soil and groundwater contamination, air pollution, and wildlife disturbance. On the other hand, biomass has the potential to deliver around 240 exajoules of energy per year by 2060. However, its current utilization remains relatively small, with only approximately 9% of biomass-derived energy being consumed in Europe in 2017. This review explores various upcycling methods for waste plastics and biomass, including mechanical, chemical, biological, and thermal approaches. It also highlights the applications of upcycled plastics and biomass in sectors such as construction, packaging, energy generation, and chemicals. The environmental and economic benefits of upcycling are emphasized, including the reduction of plastic pollution, preservation of natural resources, carbon footprint reduction, and circular economy advancement.

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Organic waste-to-bioplastics: Conversion with eco-friendly technologies and approaches for sustainable environment

Cited by 7 publications

References 242 publications

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Crystallization behaviours regulations and thermostability enhancement strategy of polypropylene composites modified by dispersed rice husk charcoal

Synergistic technologies for a circular economy: upcycling waste plastics and biomass

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