Environmental Research, Год журнала: 2023, Номер 241, С. 117663 - 117663
Опубликована: Ноя. 20, 2023
Язык: Английский
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(4), С. 2129 - 2169
Опубликована: Апрель 4, 2023
Abstract Microplastic pollution is becoming a major issue for human health due to the recent discovery of microplastics in most ecosystems. Here, we review sources, formation, occurrence, toxicity and remediation methods microplastics. We distinguish ocean-based land-based sources Microplastics have been found biological samples such as faeces, sputum, saliva, blood placenta. Cancer, intestinal, pulmonary, cardiovascular, infectious inflammatory diseases are induced or mediated by exposure during pregnancy maternal period also discussed. Remediation include coagulation, membrane bioreactors, sand filtration, adsorption, photocatalytic degradation, electrocoagulation magnetic separation. Control strategies comprise reducing plastic usage, behavioural change, using biodegradable plastics. Global production has risen dramatically over past 70 years reach 359 million tonnes. China world's top producer, contributing 17.5% global production, while Turkey generates waste Mediterranean region, at 144 tonnes per day. 75% marine waste, with responsible 80–90% pollution, account only 10–20%. induce toxic effects on humans animals, cytotoxicity, immune response, oxidative stress, barrier attributes, genotoxicity, even minimal dosages 10 μg/mL. Ingestion animals results alterations gastrointestinal tract physiology, system depression, differential gene expression, growth inhibition. Furthermore, bioaccumulation tissues aquatic organisms can adverse ecosystem, potential transmission birds. Changing individual behaviours governmental actions, implementing bans, taxes, pricing carrier bags, significantly reduced consumption 8–85% various countries worldwide. The microplastic minimisation approach follows an upside-down pyramid, starting prevention, followed reducing, reusing, recycling, recovering, ending disposal least preferable option.
Язык: Английский
Процитировано
361
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(4), С. 1959 - 1989
Опубликована: Май 9, 2023
Abstract The rising amount of waste generated worldwide is inducing issues pollution, management, and recycling, calling for new strategies to improve the ecosystem, such as use artificial intelligence. Here, we review application intelligence in waste-to-energy, smart bins, waste-sorting robots, generation models, monitoring tracking, plastic pyrolysis, distinguishing fossil modern materials, logistics, disposal, illegal dumping, resource recovery, cities, process efficiency, cost savings, improving public health. Using logistics can reduce transportation distance by up 36.8%, savings 13.35%, time 28.22%. Artificial allows identifying sorting with an accuracy ranging from 72.8 99.95%. combined chemical analysis improves carbon emission estimation, energy conversion. We also explain how efficiency be increased costs reduced management systems cities.
Язык: Английский
Процитировано
212
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(3), С. 1381 - 1418
Опубликована: Март 24, 2023
Abstract The global shift from a fossil fuel-based to an electrical-based society is commonly viewed as ecological improvement. However, the electrical power industry major source of carbon dioxide emissions, and incorporating renewable energy can still negatively impact environment. Despite rising research in energy, consumption on environment poorly known. Here, we review integration energies into electricity sector social, environmental, economic perspectives. We found that implementing solar photovoltaic, battery storage, wind, hydropower, bioenergy provide 504,000 jobs 2030 4.18 million 2050. For desalinization, photovoltaic/wind/battery storage systems supported by diesel generator reduce cost water production 69% adverse environmental effects 90%, compared full fuel systems. potential emission reduction increases with percentage sources utilized. photovoltaic/wind/hydroelectric system most effective addressing climate change, producing 2.11–5.46% increase generation 3.74–71.61% guarantee share ratios. Compared single systems, hybrid are more reliable better equipped withstand impacts change supply.
Язык: Английский
Процитировано
165
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(4), С. 2337 - 2398
Опубликована: Май 4, 2023
Access to drinkable water is becoming more and challenging due worldwide pollution the cost of treatments. Water wastewater treatment by adsorption on solid materials usually cheap effective in removing contaminants, yet classical adsorbents are not sustainable because they derived from fossil fuels, can induce secondary pollution. Therefore, biological sorbents made modern biomass increasingly studied as promising alternatives. Indeed, such biosorbents utilize waste that would otherwise pollute systems, promote circular economy. Here we review biosorbents, magnetic sorbents, other cost-effective with emphasis preparation methods, types, mechanisms, regeneration spent adsorbents. Biosorbents prepared a wide range materials, including wood, bacteria, algae, herbaceous agricultural waste, animal waste. Commonly removed contaminants comprise dyes, heavy metals, radionuclides, pharmaceuticals, personal care products. Preparation methods include coprecipitation, thermal decomposition, microwave irradiation, chemical reduction, micro-emulsion, arc discharge. Adsorbents be classified into activated carbon, biochar, lignocellulosic clays, zeolites, peat, humic soils. We detail isotherms kinetics. Regeneration supercritical fluid desorption. also discuss exhausted adsorbent management disposal. found agro-waste remove up 68–100% while wooden, herbaceous, bacterial, marine-based 55–99% metals. Animal waste-based 1–99% The average removal efficiency modified around 90–95%, but some treatments, cross-linked beads, may negatively affect their efficiency.
Язык: Английский
Процитировано
160
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(3), С. 1315 - 1379
Опубликована: Март 10, 2023
Abstract The energy crisis and environmental pollution have recently fostered research on efficient methods such as catalysis to produce biofuel clean water. Environmental refers green catalysts used breakdown pollutants or chemicals without generating undesirable by-products. For example, derived from waste inexpensive materials are promising for the circular economy. Here we review photocatalysis, biocatalysis, electrocatalysis, with focus catalyst synthesis, structure, applications. Common include biomass-derived materials, metal–organic frameworks, non-noble metals nanoparticles, nanocomposites enzymes. Structure characterization is done by Brunauer–Emmett–Teller isotherm, thermogravimetry, X-ray diffraction photoelectron spectroscopy. We found that water can be degraded an efficiency ranging 71.7 100%, notably heterogeneous Fenton catalysis. Photocatalysis produced dihydrogen (H 2 ) generation rate higher than 100 μmol h −1 . Dihydrogen yields ranged 27 88% methane cracking. Biodiesel production reached 48.6 99%.
Язык: Английский
Процитировано
113
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(3), С. 1419 - 1476
Опубликована: Фев. 24, 2023
Abstract Climate change issues are calling for advanced methods to produce materials and fuels in a carbon–neutral circular way. For instance, biomass pyrolysis has been intensely investigated during the last years. Here we review of algal lignocellulosic with focus on products mechanisms, oil upgrading, combining anaerobic digestion, economy, life cycle assessment. Products include oil, gas, biochar. Upgrading techniques comprise hot vapor filtration, solvent addition, emulsification, esterification transesterification, hydrotreatment, steam reforming, use supercritical fluids. We examined economic viability terms profitability, internal rate return, return investment, carbon removal service, product pricing, net present value. also reviewed 20 recent studies found that method highly influenced yield, ranging from 9.07 40.59% 10.1 41.25% biochar, 11.93 28.16% syngas. Feedstock type, pyrolytic temperature, heating rate, reaction retention time were main factors controlling distribution products. Pyrolysis mechanisms bond breaking, cracking, polymerization re-polymerization, fragmentation. Biochar residual forestry could sequester 2.74 tons dioxide equivalent per ton biochar when applied soil thus potential remove 0.2–2.75 gigatons atmospheric annually. The generation bio-oil process is estimated be economically feasible.
Язык: Английский
Процитировано
103
Environmental Chemistry Letters, Год журнала: 2023, Номер 21(5), С. 2639 - 2705
Опубликована: Июнь 28, 2023
Abstract The current energy crisis, depletion of fossil fuels, and global climate change have made it imperative to find alternative sources that are both economically sustainable environmentally friendly. Here we review various pathways for converting biomass into bioenergy biochar their applications in producing electricity, biodiesel, biohydrogen. Biomass can be converted biofuels using different methods, including biochemical thermochemical conversion methods. Determining which approach is best relies on the type involved, desired final product, whether or not sustainable. Biochemical methods currently most widely used from biomass, accounting approximately 80% all produced worldwide. Ethanol biodiesel prevalent via processes. Thermochemical less than conversion, 20% Bio-oil syngas, commonly manufactured wood chips, agricultural waste, municipal solid major by conversion. Biofuels potential displace up 27% world's transportation fuel 2050, could result a reduction greenhouse gas emissions 3.7 billion metric tons per year. Biochar yield high ranging 32.8% 97.75%, also serve as an anode, cathode, catalyst microbial cells with maximum power density 4346 mW/m 2 . plays role catalytic methane decomposition dry reforming, hydrogen rates 13.4% 95.7%. increase 220.3%.
Язык: Английский
Процитировано
92
Animals, Год журнала: 2023, Номер 13(8), С. 1366 - 1366
Опубликована: Апрель 16, 2023
The growing population and healthy food demands have led to a rise in waste generation, causing severe environmental economic impacts. However, (FW) can be converted into sustainable animal feed, reducing disposal providing an alternative protein source for animals. utilization of FW as feed presents solution that not only tackles challenges pertaining management security but also lessens the demand development traditional which is endeavour both resource environmentally intensive nature. Moreover, this approach contribute circular economy by creating closed-loop system reduces use natural resources minimizes pollution. Therefore, review discusses characteristics types FW, well advanced treatment methods used recycle high-quality its limitations, benefits drawbacks using feed. Finally, concludes provide management, security, preserving resources, impacts, contributing bioeconomy.
Язык: Английский
Процитировано
70
The Science of The Total Environment, Год журнала: 2024, Номер 930, С. 172794 - 172794
Опубликована: Апрель 25, 2024
The rapid urbanization witnessed in developing countries Asia and Africa has led to a substantial increase municipal solid waste (MSW) generation. However, the corresponding disposal strategies, along with constraints land resources finances, compounded by unorganized public behaviour, have resulted ineffective policy implementation monitoring. This lack of systematic targeted orientation, combined blind mapping, inefficient development many areas. review examines key challenges MSW management from 2012 2022, drawing insights 171 academic papers. Rather than solely focusing on recycling, study proposes sorting at source, optimization landfill practices, thermal treatment measures, strategies capitalize value as more pertinent solutions aligned local realities. Barriers optimizing systems arise socio-economic factors, infrastructural limitations, cultural considerations. emphasizes importance integrating area into circular economy framework, focus enhancing citizen participation reduction promoting recycling initiatives, seeking economic assistance international organizations.
Язык: Английский
Процитировано
62
Innovation and Green Development, Год журнала: 2023, Номер 3(2), С. 100121 - 100121
Опубликована: Дек. 14, 2023
The recent geopolitical events, such as the conflict between Russia and Ukraine, have strained available resources worldwide. In emerging economies like Bangladesh, which is heavily reliant on imported gas, oil, coal, this has created a severe energy crisis. response to crisis support eco-friendly waste management, converting into being recognized promising solution. However, introducing waste-to-energy systems in developing faces many intricate challenges that require careful examination. This study, therefore, aims explore evaluate associated with adopting (WtE) conversion system Bangladesh. research methodology involves identifying from an extensive review of existing literature expert feedback then combining Bayesian theory Best Worst Method (BWM) challenges. Among 21 analyzed, 'need for well-developed planning incentivized policymaking', 'ineffectiveness segregation at source', 'high cost installation, maintenance, infrastructure development' appear be most significant weight values 0.071, 0.067, 0.066, respectively. study can enhance managers' understanding faced by sector thus facilitate informed decision-making. outcomes are expected enrich body knowledge, promote diffusion WtE technology economies, reduce dependency international market, achieve global sustainable development goals (SDGs) affordable clean (SDG 7), cities communities 11), climate action 13).
Язык: Английский
Процитировано
58