Toxicity of Heavy Metals and Recent Advances in Their Removal: A Review

Toxics, Journal Year: 2023, Volume and Issue: 11(7), P. 580 - 580

Published: July 3, 2023

Natural and anthropogenic sources of metals in the ecosystem are perpetually increasing; consequently, heavy metal (HM) accumulation has become a major environmental concern. Human exposure to HMs increased dramatically due industrial activities 20th century. Mercury, arsenic lead, chrome, cadmium have been most prevalent that caused human toxicity. Poisonings can be acute or chronic following via water, air, food. The bioaccumulation these results variety toxic effects on various tissues organs. Comparing mechanisms action reveals induce toxicity similar pathways, including production reactive oxygen species, inactivation enzymes, oxidative stress. conventional techniques employed for elimination deemed inadequate when HM concentration is less than 100 mg/L. In addition, methods exhibit certain limitations, secondary pollutants, high demand energy chemicals, reduced cost-effectiveness. As result, employment microbial bioremediation purpose detoxification emerged as viable solution, given microorganisms, fungi bacteria, superior biosorption bio-accumulation capabilities. This review deals with uptake associated HMs, will increase our knowledge their body organs, leading better management poisoning. aims enhance comprehension offer judicious selection remediation technology HMs. Microbial-based solutions sustainable could potentially crucial cost-effective reducing

Language: Английский

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Bioplastic production in terms of life cycle assessment: A state-of-the-art review

Environmental Science and Ecotechnology, Journal Year: 2023, Volume and Issue: 15, P. 100254 - 100254

Published: Feb. 20, 2023

The current transition to sustainability and the circular economy can be viewed as a socio-technical response environmental impacts need enhance overall performance of linear production consumption paradigm. concept biowaste refineries feasible alternative petroleum has gained popularity. Biowaste become an important raw material source for developing bioproducts biofuels. Therefore, effective management systems biofuels are crucial employed pillars economy. Bioplastics, typically plastics manufactured from bio-based polymers, stand contribute more sustainable commercial plastic life cycles part in which virgin polymers made renewable or recycled materials. Various frameworks strategies utilized model illustrate additional patterns fossil fuel bioplastic feedstock prices various governments' long-term policies. This review paper highlights harmful fossil-based on environment human health, well mass eco-friendly alternatives such biodegradable bioplastics. Utilizing new types bioplastics derived resources (e.g., biowastes, agricultural wastes, microalgae) choosing appropriate end-of-life option anaerobic digestion) may right direction ensure production. Clear regulation financial incentives still required scale niche large-scale market applications with truly impact.

Language: Английский

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A comprehensive review on the potential of microbial enzymes in multipollutant bioremediation: Mechanisms, challenges, and future prospects

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 334, P. 117532 - 117532

Published: Feb. 20, 2023

Language: Английский

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Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

Energies, Journal Year: 2023, Volume and Issue: 16(4), P. 1752 - 1752

Published: Feb. 9, 2023

The idea of a circular economy (CE) has gained ground over the past ten years as means addressing sustainable development and getting around limitations current linear dominant production consumption patterns. primary goal CE is to encourage adoption closing-the-loop methods improve resource use efficiency, modify chemical processes, increase product material lifespan. According 2030 Agenda for Sustainable Development, which focuses on 17 Development Goals, 14 call appropriate application green chemistry (GC) concepts patterns, role that may play in shift toward more models critical. By serving foundation novel products made from renewable feedstocks designed be reused, recycled, or recovered with associated minimum energy requirements, could key unlocking economic potential new design ultimately solving waste management problems. aim this perspective paper, while using variety literature sources, essentially capture main issues GC paradigms how these two approaches can merge business materials. This integration reducing waste, conserving resources, minimizing negative environmental impacts, also considering viability. However, obstacles achieving implementation principles are investment, education, legislation. To advance chemistry, international agreements should reconsidered provide an framework, including creation incentives businesses individuals adopt practices, establishment education programs promote benefits regulations support transition

Language: Английский

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Biodegradation of Different Types of Bioplastics through Composting—A Recent Trend in Green Recycling

Catalysts, Journal Year: 2023, Volume and Issue: 13(2), P. 294 - 294

Published: Jan. 28, 2023

In recent years, the adoption of sustainable alternatives has become a powerful tool for replacing petroleum-based polymers. As biodegradable alternative to petroleum-derived plastics, bioplastics are becoming more and prevalent have potential make significant contribution reducing plastic pollution in environment. Meanwhile, their biodegradation is highly dependent on The leakage into environment long degradation time frame during waste management processes major concerns that need further investigation. This review highlights extent rate bioplastic composting, soil, aquatic environments, examines biological environmental factors involved process. Furthermore, research long-term fate natural industrial environments. roles played by enzymes as biocatalysts metal compounds catalysts through composting can help achieve approach biopolymers. knowledge gained this study will also contribute development policies assessments waste, well provide direction future development.

Language: Английский

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Biodegradation of low-density polyethylene plastic waste by a constructed tri-culture yeast consortium from wood-feeding termite: Degradation mechanism and pathway

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 448, P. 130944 - 130944

Published: Feb. 6, 2023

Language: Английский

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Bamboo-derived adsorbents for environmental remediation: A review of recent progress

Environmental Research, Journal Year: 2023, Volume and Issue: 224, P. 115533 - 115533

Published: Feb. 23, 2023

Language: Английский

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A critical review on plastic waste life cycle assessment and management: Challenges, research gaps, and future perspectives

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 271, P. 115942 - 115942

Published: Jan. 12, 2024

The global production and consumption of plastics, as well their deposition in the environment, are experiencing exponential growth. In addition, mismanaged plastic waste (PW) losses into drainage channels a growing source microplastic (MP) pollution concern. However, complete understanding environmental implications throughout life cycle is yet to be fully understood. Determining potential extent which MPs contribute overall ecotoxicity possible through monitoring PW release MP removal during remediation. Life assessments (LCAs) have been extensively utilized many comparative analyses, such comparing petroleum-based plastics with biomass single-use multi-use alternatives. These typically yield unexpected or paradoxical results. Nevertheless, there still paucity reliable data tools for conducting LCAs on plastics. On other hand, impact so far not considered LCA studies. This due absence inventory-related regarding releases characterization factors necessary quantify effects MP. Therefore, this review paper conducts comprehensive literature order assess current state knowledge impacts that occur along strategies management LCA.

Language: Английский

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Unveiling the environmental gains of biodegradable plastics in the waste treatment phase: A cradle-to-crave life cycle assessment

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 487, P. 150540 - 150540

Published: March 22, 2024

Language: Английский

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Impact of bioplastics on environment from its production to end-of-life

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 188, P. 151 - 166

Published: May 24, 2024

The increasing demand for sustainable alternatives to conventional plastics has propelled the interest in bioplastics. While numerous studies have showcased their environmental advantages, particularly reducing global warming potential and fossil fuel usage, comprehensive reviews on holistic impacts of bioplastics throughout life cycle are scarce. This paper aims fill this gap by critically evaluating sustainability bioplastics, from production disposal. We find that impact is influenced feedstock choices, processing methods, disposal practices. Although intensive agriculture can cause acidification eutrophication as well incomplete biodegradation may lead formation bio-micro/nano-plastics, generally present a lower burden than traditional plastics, evidenced reduced carbon footprint enhanced biodegradability, which contributes decreased plastic waste. Importantly, positively affect soil dynamics, underscoring role promoting agricultural management advocate future Life Cycle Assessment develop inventory database enabling more thorough evaluation impacts. research provides critical insights policymakers viability

Language: Английский

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