Results 21 to 30 of about 133,176 (288)

Environmental and economic impact assessment of anaerobic ammonia oxidation treatment for coal gasification wastewater

open access: yesGongye shui chuli
The article adopted the life cycle assessment(LCA) method and selected a coal gasification wastewater treatment plant as the research object to evaluate and compare the carbon emissions, environmental impacts, and economic benefits of the anaerobic ...
TIAN Shuwen   +5 more
doaj   +1 more source

Sulfonated Cellulose-Based Magnetic Composite as Useful Media for Water Remediation from Amine Pollutants

open access: yesApplied Sciences, 2020
Commercially available microcrystalline cellulose (MCC) was functionalized using chlorosulfonic acid, while iron oxide nanoparticles (IONPs) were adsorbed on the surface of the cellulose derivative by the Massart’s co-precipitation method.
Antonio De Nino   +6 more
doaj   +1 more source

Differential characteristics and source contribution of water pollutants before and after the extreme rainfall event in the Huaihe River Basin

open access: yesFrontiers in Environmental Science, 2022
Various pollutants are collected into rivers through runoff when rainstorms occur, which can harm the aquatic ecological environment, therefore, strengthening the analysis of river pollution sources before and after rainstorms can reduce the impact of ...
Yan Zhang   +12 more
doaj   +1 more source

Bi-Directional Waterway Reveals Nutrient Runoff From Cropland

open access: yesFrontiers in Environmental Science, 2018
Blackbird Creek is the waterway that empties into the Delaware Bay. The lower 21 km of the creek has been shown to have appreciable salinity measurements, suggesting that this portion is influenced by tidal fluctuations.
Gulnihal Ozbay, Matthew Stone
doaj   +1 more source

A Fluorescent Sensor Array Based on Heteroatomic Macrocyclic Fluorophores for the Detection of Polluting Species in Natural Water Samples

open access: yesFrontiers in Chemistry, 2018
The development of a novel all-solid-state optical sensor array based on heteroatomic macrocyclic fluorophores (diaza-crown ether, metallocorrole and pyridinophans) for the photographic analysis of liquid media, is presented.
Larisa Lvova   +10 more
doaj   +1 more source

Synthesis characterization of Zn-based MOF and their application in degradation of water contaminants

open access: yesWater Science and Technology, 2022
Metal–organic frameworks (MOFs) are currently popular porous materials with research and application value in various fields such as medicine and engineering.
Saade Abdalkareem Jasim   +8 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Brominated Flame Retardants in Antarctic Air in the Vicinity of Two All-Year Research Stations

open access: yesAtmosphere, 2021
Continuous atmospheric sampling was conducted between 2010–2015 at Casey station in Wilkes Land, Antarctica, and throughout 2013 at Troll Station in Dronning Maud Land, Antarctica. Sample extracts were analyzed for polybrominated diphenyl ethers (PBDEs),
Susan Maria Bengtson Nash   +3 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

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