Results 71 to 80 of about 16,914 (289)

Prospective LCA of E‐Methanol Along the Transformation of Steel Industry

open access: yesChemie Ingenieur Technik, EarlyView.
The environmental effects of change in steel production route on e‐methanol production are analyzed as they shift from blast furnace route to direct reduction route. Specific hydrogen demand reduces, as do the avoided CO2 emissions. E‐methanol's overall carbon footprint stays in a narrow range of −1 to −1.1 kg‐CO2‐eq./kg‐methanol.
Ankur Gaikwad
wiley   +1 more source

Freshwater ecotoxicity characterization factors for PFASs [Elektronisk resurs]

open access: yes
This research aims to address the data gaps in freshwater ecotoxicological characterization factors (CFs) for per- and polyfluoroalkyl substances (PFASs). These CFs are essential for incorporating the ecotoxicity impacts of PFAS emissions into life cycle
Aggarwal, Rahul,
core   +1 more source

Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N = 
Gustavo P. Zago   +2 more
wiley   +1 more source

Ecotoxicity of Firefighting foam

open access: yes, 2017
This bachelor thesis deals with ecotoxicity of selected fire extinguishing agents concentrated on surface-active agents (surfactants) contained in foam fire extinguishers. Tested substances were solid humectants TS TURBO and TS ECO.
Belisová, Mária
core   +1 more source

Ecotoxicity prediction of chemical compounds using machine learning and different molecular structure representations

open access: yesGreen Analytical Chemistry
Advancements in computational tools have facilitated interdisciplinary approaches in toxicology, enabling chemists to explore the toxicity and ecotoxicity of chemical compounds while minimizing ethically questionable or hazardous methods.
Michał Marek, Rafał Kurczab
doaj   +1 more source

Special Issue “Pharmaceutical Residues in the Environment”

open access: yesMolecules, 2020
Pharmaceuticals, due to their pseudo-persistence and biological activity as well as their extensive use in human and veterinary medicine, are a class of environmental contaminants that is of emerging concern [...]
Jolanta Kumirska
doaj   +1 more source

Extrapolation factors for calculating ecotoxicity effects in LCA

open access: yes
PurposeThis study focuses on updating, improving, and expanding the extrapolation factors needed to convert various acute or chronic effect concentration indicators into consistent chronic EC10eq (effect concentration inducing a 10% response over ...
Aggarwal, Rahul,   +6 more
core   +1 more source

Bioavailability as a key property in terrestrial ecotoxicity assessment and evaluation

open access: yes, 2022
It was the primary scope of the worhshop to give a critical overview of various scientific aspects to determine "bioavailability" for terrestrial ecotoxicity assessment and evaluation. However, the acceptability and reliability of methods for policy use -

core  

Development of a sustainable water treatment process using biochar as substrate for filtration and coliform removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Preparation, modification, and characterization of biochar from woodchips and its application in stream water filtration, evaluated through physicochemical and microbiological analyses. Abstract Global microbial water contamination affects 1.8 billion people, necessitating efficient and sustainable treatment methods.
Tariq Khalil   +8 more
wiley   +1 more source

Extrapolation factors for characterizing freshwater ecotoxicity effects

open access: yes, 2019
Various environmental and chemical assessment frameworks including ecological risk assessment and life cycle impact assessment aim at evaluating long-term ecotoxicity effects. Chronic test data are reported under the European REACH regulation for several
Paola Federica Albizzati   +7 more
core   +1 more source

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