Sustainability and carbon neutralization trends in microalgae bioenergy production from wastewater treatment: A review

Bioresource Technology, Journal Year: 2022, Volume and Issue: 364, P. 128057 - 128057

Published: Oct. 1, 2022

Language: Английский

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Remediation and its biological responses to Cd(II)-Cr(VI)-Pb(II) multi-contaminated soil by supported nano zero-valent iron composites

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 867, P. 161344 - 161344

Published: Jan. 4, 2023

Language: Английский

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Microbially driven Fe-N cycle: Intrinsic mechanisms, enhancement, and perspectives

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168084 - 168084

Published: Nov. 2, 2023

Language: Английский

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Application, mechanism and prospects of Fe-based/ Fe-biochar catalysts in heterogenous ozonation process: A review

Chemosphere, Journal Year: 2023, Volume and Issue: 319, P. 138018 - 138018

Published: Jan. 30, 2023

Language: Английский

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Biochar as a Soil Amendment for Restraining Greenhouse Gases Emission and Improving Soil Carbon Sink: Current Situation and Ways Forward

Sustainability, Journal Year: 2023, Volume and Issue: 15(2), P. 1206 - 1206

Published: Jan. 9, 2023

The global exponential rise in greenhouse gas (GHG) emissions over the last few decades has triggered an urgent need to contextualize low-cost and evergreen technologies for restraining GHG production enhancing soil carbon sink. GHGs can be mitigated via incorporating biochar into matrix sequestrate mineralized a stable form upon organic matter decomposition soil. However, efficiency of using offset from terrestrial ecosystems is still debatable. Moreover, literature, shows high functionality short-term laboratory studies, but it minimal or negative impacts field-scale experiments, leading conflicting results. This paper synthesizes information on ability mitigate dioxide (CO2), nitrous oxide (N2O), methane (CH4) biomass, with emphasis cropland soils. feedstock type, pyrolysis temperature, application rate factors showed significant effects controlling effectiveness emissions. Our study demonstrates that biochar, taken as whole, seen powerful easy-to-use tool halting rising tide Nonetheless, future research should focus (i) identifying other indirect related physicochemical characters (such pH/EH CaCO3 contents) may control (ii) fabricating aged biochars low nitrogen footprints, (iii) functionalizing biologically activated suppress CO2, CH4, N2O Overall, our paradoxical findings highlight functionalize modern capacity abate locking up their release carbonaceous lattice biochar.

Language: Английский

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Nano Revolution: “Tiny tech, big impact: How nanotechnology is driving SDGs progress"

Heliyon, Journal Year: 2024, Volume and Issue: 10(10), P. e31393 - e31393

Published: May 1, 2024

Nanotechnology has emerged as a powerful tool in addressing global challenges and advancing sustainable development. By manipulating materials at the nanoscale, researchers have unlocked new possibilities various fields, including energy, healthcare, agriculture, construction, transportation, environmental conservation. This paper explores potential of nanotechnology nanostructures contributing to achievement United Nations (UN) Sustainable Development Goals (SDGs) by improving energy efficiency conversion, leading more clean future, water purification processes, enabling access drinking for communities, targeted drug delivery systems, early disease detection, personalized medicine, thus revolutionizing crop yields, efficient nutrient pest control mechanisms, many other areas, therefore food security issues. It also highlights nanomaterials remediation pollution control. Therefore, understanding harnessing nanotechnology's potential, policymakers, researchers, stakeholders can work together toward future achieving 17 UN SDGs.

Language: Английский

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Performance Enhancement of Biogenetic Sulfidated Zero-Valent Iron for Trichloroethylene Degradation: Role of Extracellular Polymeric Substances

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(8), P. 3323 - 3333

Published: Feb. 2, 2023

Chemical sulfidation has been considered as an effective strategy to improve the reactivity of zero-valent iron (S-ZVI). However, is a widespread biogeochemical process in nature, which inspired us explore biogenetic ZVI (BS-ZVI) with sulfate-reducing bacteria (SRB). BS-ZVI could degrade 96.3% trichloroethylene (TCE) acetylene, ethene, ethane, and dichloroethene, comparable S-ZVI (97.0%) same S/Fe ratio (i.e., 0.1). (0.21 d–1) exhibited faster degradation rate than (0.17 based on pseudo-first-order kinetic fitting due extracellular polymeric substances (EPSs) excreted from SRB. Organic components EPSs, including polysaccharides, humic acid-like substances, proteins BS-ZVI, were detected 3D-EEM spectroscopy FT-IR analysis. The hemiacetal groups redox-activated protein EPS did not affect TCE degradation, while acetylation degree increased concentration S/Fe, thus inhibiting degradation. A low HA-like attached materials promoted electron transport. formed protective layer surface materials, reducing its reaction rate. Overall, this study showed performance enhancement toward through provided new alternative method for ZVI.

Language: Английский

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Immobilization of zinc and cadmium by biochar-based sulfidated nanoscale zero-valent iron in a co-contaminated soil: Performance, mechanism, and microbial response

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 902, P. 165968 - 165968

Published: Aug. 4, 2023

Language: Английский

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Research Progress on the Removal of Contaminants from Wastewater by Constructed Wetland Substrate: A Review

Water, Journal Year: 2024, Volume and Issue: 16(13), P. 1848 - 1848

Published: June 28, 2024

Constructed wetlands (CWs) primarily achieve efficient wastewater purification through synergistic interactions among substrates, plants, and microorganisms. Serving as the structural foundation of entire wetland system, substrates not only provide a growth medium for but also serve adhesive carriers microorganisms habitats animal activities. Research on has attracted considerable attention; however, in practical engineering applications, selection often depend personal experience, which may lead to significant gaps effectiveness systems treating different characteristic contaminants. Therefore, it is great significance investigate influence removal contaminants sewage identify substrate materials with good physical chemical properties optimize design operation CWs-based sewage-treatment improve their efficiency. In this review, bibliometric analysis was conducted using Web Science database VOSviewer_1.6.20 software assess progress research CWs. This article provides comprehensive overview types characteristics based recent advancements field. Additionally, discusses methods factors related conventional (COD, nitrogen, phosphorus), heavy metals (HMs), fluorinated compounds, pharmaceuticals, care products (PPCPs), microplastics. A thorough evaluation economic costs various ability remove major from water bodies, providing reference further development technology.

Language: Английский

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Synergistic effect between biochar and sulfidized nano-sized zero-valent iron enhanced cadmium immobilization in a contaminated paddy soil

Biochar, Journal Year: 2024, Volume and Issue: 6(1)

Published: June 3, 2024

Abstract Biochar-based sulfidized nano-sized zero-valent iron (SNZVI/BC) can effectively immobilize cadmium (Cd) in contaminated paddy soils. However, the synergistic effects between biochar and SNZVI on Cd immobilization, as well underlying mechanisms remain unclear. Herein, a soil microcosm incubation experiment was performed to investigate immobilization performance of SNZVI/BC towards soil. Results indicated that addition at dosage 3% significantly lessened concentration available from 14.9 (without addition) 9.9 mg kg −1 with an efficiency 33.3%, indicating effect. The sequential extraction results proportion residual increased 8.1 10.3%, manifesting transformation unstable fractions steadier specie after application SNZVI/BC. Also, pH, organic matter, dissolved carbon, which altered bacterial community soil, enriching relative abundances functional microbes (e.g., Bacillus , Clostridium Desulfosporosinus ). These microorganisms further facilitated generation ammonium, nitrate, ferrous enhancing nutrients’ availability. direct interaction 2+ physicochemical properties, responded played important roles Overall, biochar-based is promising candidate for effective improvement availability Graphical

Language: Английский

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