Environmental Effects of Bio-Waste Recycling on Industrial Circular Economy and Eco-Sustainability DOI Creative Commons

Sasmoko Sasmoko,

Khalid Zaman,

Maida Malik

et al.

Recycling, Journal Year: 2022, Volume and Issue: 7(4), P. 60 - 60

Published: Aug. 15, 2022

Few prior studies have examined the social and environmental consequences of waste generation recycling, resulting in a policy gap sustainability agenda. The research filled knowledge vacuum literature by investigating repercussions different recycling processes Chinese economy. study analyzed production statistics over last 46 years, from 1975 to 2020, their impact on nation’s emissions per capita. This used four primary approaches determine links between variables, beginning with unit root test, which identifies stationary process variables’ underlying processes. Second, autoregressive distributed lag (ARDL) model was produce short- long-run estimates. Third, estimations Granger causality causal relationships variables. Finally, innovation accounting matrices (IAM)were utilized predict variables during following decade. estimates imply mix order variable integration; hence, it is appropriate employ ARDL modeling for parameter estimations. demonstrate that combustible renewables decrease carbon boosting industrial recycling. Despite systems, escalated uncontrolled levels owing massive municipal solid garbage. Sustainable management are vital reducing emissions. Granger’s causation cause Additionally, population growth responsible greenhouse gas emissions, biowaste Furthermore, this shows two-way connections implying need develop green strategies nation. IAM method identified future aids policymakers implementing sustainable practices concludes impede circular economy agenda, can be sustained spillovers, chemical reduction manufacturing, allocating certain amount US dollars ecological resource conservation.

Language: Английский

The Economic Value of Natural Resources and Its Implications for Pakistan’s Economic Growth DOI Creative Commons

Zar Shah,

Khalid Zaman, Haroon ur Rashid Khan

et al.

Commodities, Journal Year: 2022, Volume and Issue: 1(2), P. 65 - 97

Published: Oct. 27, 2022

Natural resources and ecological services provide the foundation for manufactured capital, increasing public financing decreasing inequality by diversifying economy. The exploitation of natural is frequently backbone economic stability in developing middle-income nations. As a result their importance, need vigilant long-term management. Recent research has tested two hypotheses, resource blessing hypothesis curse hypothesis, on impact country’s its This an essential contribution to growing body work that attempts quantify endowments’ role national growth. Investigations focus Pakistan span years 1975 through 2020. Robust Least Square (RLS) estimations show coal rents, energy use, inbound FDI, oil rents contribute While consumption renewable sources industrial value-added have detrimental effect. resources, foreign direct investment, consumption, ecology are predicted significantly growth during next decade, according Impulse Response Function (IRF) Variance Decomposition Analysis (VDA). findings may helpful information academic governmental institutions develop management policies sustainable development.

Language: Английский

Citations

43
Bioremediation of acid mine drainage – Review DOI Creative Commons
Ifeanyi Michael Smarte Anekwe, Yusuf Makarfi Isa

Alexandria Engineering Journal, Journal Year: 2022, Volume and Issue: 65, P. 1047 - 1075

Published: Oct. 22, 2022

Pollution is a major threat to the sustainability of ecosystem. The rapid increase in environmental pollution current problem great concern, affecting livelihood land and water dwellers. This can be attributed anthropogenic industrial activities, including mining, which often leads generation acid mine drainage (AMD), considered one most catastrophic ecological problems. Soil use for domestic purposes has been drastically affected, highlighting urgent need remediation. physical, chemical, physicochemical, thermal methods treatment AMD contamination criticized because some these are not environmentally friendly others result site recontamination. Bioremediation involves microorganisms degrade contaminants controlled environment. study critically reviewed various bioremediation contamination, factors influencing application methods, cost-benefit impact analyses, challenges, prospects technologies effective treatment. shows that have proven serve as cost-effective approach remediation contaminated sites. However, large-scale remains challenge. Research still needed optimize develop capable remediating sites with complex mixtures evenly distributed

Language: Английский

Citations

41
Conventional and recent advances in gravity separation technologies for coal cleaning: A systematic and critical review DOI Creative Commons
Theerayut Phengsaart,

Palot Srichonphaisan,

Chinawich Kertbundit

et al.

Heliyon, Journal Year: 2023, Volume and Issue: 9(2), P. e13083 - e13083

Published: Jan. 21, 2023

"Affordable and clean energy" is enshrined in the UN Sustainable Development Goals (SDGs; #7) because of its importance supporting sustainable development society. As an energy source, coal widely used it abundant utilization for electricity heat generation do not require complex infrastructures technologies, which makes ideal needs low-income developing countries. Coal also essential steel making (as coke) cement production will continue to be on high demand foreseeable future. However, naturally found with impurities or gangue minerals like pyrite quartz that could create by-products (e.g., ash) various pollutants CO2, NOX, SOX). To reduce environmental impacts during combustion, cleaning—a kind pre-combustion technology—is essential. Gravity separation, a technique separates particles based their differences density, cleaning due simplicity operation, low cost, efficiency. In this paper, recent studies (from 2011 2020) related gravity separation were systematically reviewed using Preferred Reporting Items Systematic Reviews Meta-Analyses (PRISMA) guidelines. A total 1864 articles screened after removing duplicates, thorough evaluation 189 summarized. Among conventional techniques, dense medium separator (DMS), particularly cyclone (DMC), most popular technologies studied, attributed growing challenges cleaning/processing fine coal-bearing materials. years, works focused dry-type cleaning. Finally, future applications address problems pollution mitigation, waste recycling reprocessing, circular economy, mineral processing are discussed.

Language: Английский

Citations

41
Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review DOI Open Access

Leong Wei,

Shayfull Abd Rahim,

Mohd Mustafa Al Bakri Abdullah

et al.

Materials, Journal Year: 2023, Volume and Issue: 16(13), P. 4635 - 4635

Published: June 27, 2023

In the pursuit of achieving zero emissions, exploring concept recycling metal waste from industries and workshops (i.e., waste-free) is essential. This because not only helps conserve natural resources but also requires less energy as compared to production new products virgin raw materials. The use scrap in rapid tooling (RT) for injection molding an interesting viable approach. Recycling methods enable recovery valuable powders various sources, such electronic, industrial, automobile scrap. Mechanical alloying a potential opportunity sustainable powder it has capability convert starting materials with different initial sizes into particles through ball milling process. Nevertheless, parameter factors, type milling, ball-to-powder ratio (BPR), rotation speed, grinding period, size shape media, process control agent (PCA), can influence quality characteristics produced. Despite drawbacks environmental impacts, this still be method metals powders. Further research required optimize Furthermore, been widely used industries, including mold production, improve product properties environmentally friendly way. review found that best tool reducing particle recycled chips creating enhance mechanical novelty additive manufacturing (MAM) applications. Therefore, necessary conduct further on parameters associated converting copper powder. will assist attaining highest level efficiency effectiveness reduction quality. Lastly, presents avenues future by application RT technique.

Language: Английский

Citations

41
Phase separation and fluid mixing revealed by trace element signatures in pyrite from porphyry systems DOI
Manuel Keith, Karsten M. Haase, Allan R. Chivas

et al.

Geochimica et Cosmochimica Acta, Journal Year: 2022, Volume and Issue: 329, P. 185 - 205

Published: May 25, 2022

Language: Английский

Citations

40
Driving sustainable circular economy in electronics: A comprehensive review on environmental life cycle assessment of e-waste recycling DOI
Yifeng He, Mohammadali Kiehbadroudinezhad,

Homa Hosseinzadeh-Bandbafha

et al.

Environmental Pollution, Journal Year: 2023, Volume and Issue: 342, P. 123081 - 123081

Published: Dec. 7, 2023

Language: Английский

Citations

35
Gold recovery from E-waste using freestanding nanopapers of cellulose and ionic covalent organic frameworks DOI Creative Commons

Qinqin Xu,

Xing-Hao Du,

Dan Luo

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 458, P. 141498 - 141498

Published: Jan. 18, 2023

The ever-increasing production of electronic devices generates a huge amount waste (E-waste). Therefore, there is an urgent need for advanced recycling technology E-waste that provides both economic and environmental benefits. Herein, we describe the preparation flexible, freestanding CF-COF nanopapers consisting cellulose fibers (CFs) guanidinium-based ionic covalent organic framework (COF) can be used recovering gold from leaching solutions via membrane separation technique. Due to synergetic effects physical adsorption, ion exchange chemical reduction, COF has extremely high capture capacity (up 1,794 mg Au per gram COF), highly selective fast kinetics adsorbing trace amounts [AuCl4]− in aqueous solution. loadings (∼50 wt%) hierarchical porosity resulted excellent performance when capturing species This study new possibilities developing sustainable materials, efficient cost-effective techniques recovery precious metals E-waste.

Language: Английский

Citations

27
The Influence of Textile Type, Textile Weight, and Detergent Dosage on Microfiber Emissions from Top-Loading Washing Machines DOI Creative Commons
Pongsiri Julapong,

Palot Srichonphaisarn,

Thidarat Meekoch

et al.

Toxics, Journal Year: 2024, Volume and Issue: 12(3), P. 210 - 210

Published: March 12, 2024

The use of washing machines to wash textiles gradually breaks down synthetic fibers like polyethylene terephthalate (PET) or polyester (PES) in diverse clothing materials, a process that is growing notoriety because it generates microplastics (MPs). In this study, we investigated the emission microfibers, including both microplastic (MPFs) and natural (MFs), from top-loading machines. Our investigation focused on four popular with prevalent weave structures (plain, satin, twill): (i) PES, (ii) tetron cotton (TC), (iii) chief value (CVC), (iv) (CO) fabrics. This study also examined effects textile weight detergent dosage MF emissions. After washing, MFs were collected through filtration, their concentrations determined using micro-Fourier Transform Interferometry (μFTIR). results showed varying effluent depending type textile. Specifically, CVC exhibited highest at 4022 particles/L, followed by TC, CO 2844 2382 2279 respectively. hydrophobic nature PES makes prone rapid degradation detergent-rich environments, leading high Additionally, mechanical properties textiles, such as tensile bending strengths, may play crucial role generation Textiles made twill weaves demonstrated superior strength correlated lower emissions MFs. comparison, satin properties, which could explain Finally, composed are plain weaved, be attributed intermediate compared those CO.

Language: Английский

Citations

15
Mechanically Robust Reversibly Cross‐Linked Polymers with Closed‐Loop Recyclability for Use in Flexible Printed Circuit Boards DOI
Wenjie Wang, Xingyuan Lu, Yixuan Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(34)

Published: April 26, 2024

Abstract It remains a huge challenge to efficiently recycle the printed circuit boards (PCBs) because of diversity and complexity PCBs in terms material composition. The recycling highly depends on design polymers that make up polymer substrates conductive pastes. Herein, closed‐loop recyclable plastics for use as preparation pastes are fabricated by dynamically cross‐linking phenylboronic acid‐functionalized poly(methylmethacrylate) (PMMA‐B) poly(urea‐urethane) (PUU‐B) with boroxines. plastic, which is denoted PMMA‐PUU exhibits breaking strength 71.0 MPa Young's modulus 1.8 GPa. Because dynamic nature boroxines, 0.6 plastic can be depolymerized N, N‐dimethylacetamide/ethanol mixture solvent. PMMA PUU recovered high yields purity through their solubility differences selective solvents. Conductive suitable printing electrical circuits complexation Ag particles PMMA‐PUU. composed PMMA‐PUU‐based flexible, healable, recyclable. enables collection purified particles, PMMA‐B, PUU‐B monomers even when mixed wastes.

Language: Английский

Citations

12
Polychlorinated naphthalenes (PCNs) and polychlorinated biphenyls (PCBs) in surface soils and street dusts in Detroit, Michigan DOI
Sung-Hee Seo, Tian Xia, Md Kamrul Islam

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 964, P. 178582 - 178582

Published: Jan. 21, 2025

Language: Английский

Citations

1