Results 41 to 50 of about 359,834 (266)

Food and water security issues in Russia II: Water security in general population of Russian Arctic, Siberia and Far East, 2000–2011 [PDF]

open access: yesInternational Journal of Circumpolar Health, 2013
Background . Poor state of water supply systems, shortage of water purification facilities and disinfection systems, low quality of drinking water generally in Russia and particularly in the regions of the Russian Arctic, Siberia and Far East have been ...
Alexey A. Dudarev   +9 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Contamination risk assessment of the Transboundary Zeravshan River using chemical and isotopic studies [PDF]

open access: yesE3S Web of Conferences, 2019
The results of chemical and isotope analyses of water of the Zeravshan River are presented. Results show that the low salinity of the river water in the upstream reach is formed mainly by water dissolution of minerals in natural rocks, i.e. the existence
Normatov Parviz, Normatov Inom
doaj   +1 more source

Plain Meaning, Precedent, and Metaphysics: Interpreting the “Pollutant” Element of the Federal Water Pollution Offense [PDF]

open access: yes, 2014
This Article, the second in a series of five, examines the meaning of “pollutant” under the Clean Water Act. Congress and EPA have defined “pollutant” to mean a list of specific substances and broad categories of materials and wastes discharged into ...
Miller, Jeffrey G.
core   +1 more source

The microbiotest battery as an important component in the assessment of snowmelt toxicity in urban watercourses—preliminary studies [PDF]

open access: yes, 2015
The aim of the study was to use a battery of biotests composed of producers (Selenastrum capricornutum, Sorghum saccharatum, Lepidium sativum, and Sinapis alba), consumers (Thamnocephalus platyurus), and decomposers (Tetrahymena thermophila) to ...
Mankiewicz-Boczek, J.   +3 more
core   +2 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Water Quality Notes: What are concentrations and loads, and why do they matter?

open access: yesEDIS
Water quality is a broad term used to describe a range of physical, chemical, and/or biological characteristics of water. Many different factors contribute to water quality.
Alexander J. Reisinger   +4 more
doaj   +3 more sources

Adsorption of two pesticides on a clay surface: a theoretical study [PDF]

open access: yes, 2012
The contamination of water resources with many organic xenobiotic compounds poses a challenge to environmental sciences and technologies [1]. Although in many cases these contaminants are present only in small concentrations, the large variety of such ...
Carvalho, A. J. Palace   +2 more
core  

Food waste materials appear efficient and low-cost adsorbents for the removal of organic and inorganic pollutants from wastewater [PDF]

open access: yes, 2018
In recent studies, the adsorption capacity of several food waste materials has been assessed by performing adsorption experiments in heterogeneous operating conditions.
Canepari, S.   +4 more
core   +1 more source

Selective Benzene Capture by Metal‐Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) hold significant potential for capturing benzene from air emissions and hydrocarbon mixtures in liquid phases. This capability stems from their precisely engineered structures, versatile chemistries, and diverse binding interactions.
Zongsu Han   +4 more
wiley   +1 more source

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