Results 41 to 50 of about 42,267 (215)

Efficient removal of Cr (VI) and Co (II) from aqueous solution by activated carbon from Manihot esculenta Crantz agricultural bio-waste

open access: yesWater Science and Technology, 2021
Heavy metals are one of the most dangerous and critical threats to human and environment. In this study, the adsorption efficiency of activated carbon from cassava peels considered as agricultural waste (CPR) was evaluated for removal of heavy metals Cr (
A. Belcaid   +4 more
doaj   +1 more source

Heavy metal removal applications using adsorptive membranes [PDF]

open access: yesNano Convergence, 2020
AbstractWater is a significant natural resource for humans. As such, wastewater containing heavy metals is seen as a grave problem for the environment. Currently, adsorption is one of the common methods used for both water purification and wastewater treatment.
Thi Sinh Vo   +3 more
openaire   +3 more sources

Exploring adsorption dynamics of heavy metals onto varied commercial microplastic substrates: Isothermal models and kinetics analysis

open access: yesHeliyon
The increasing presence of plastics in the environment has raised concerns about their potential impact, especially as carriers of heavy metals such as Cd, Ni, and Pb.
Anda-Gabriela Tenea   +8 more
doaj   +1 more source

Evaluation of the Removal of Heavy Metals (Cadmium Lead, and Zinc) from Aqueous Solutions using Multi-Walled Carbon Nanotubes Modified with Chitosan [PDF]

open access: yesآب و فاضلاب, 2018
Discharge of toxic metals such as cadmium (Cu), lead (Pb), and zinc (Zn) in the environment can impact the quality of air and water.  High concentration of these toxic metals larger than the regulated concentration in the air and water can pose serious ...
Farzad Hashemzadeh   +3 more
doaj   +1 more source

Recent advances in water remediation from toxic heavy metals using biochar as a green and efficient adsorbent: A review

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
Heavy metal pollution is a serious environmental problem that poses a threat to human health and the environment. Water pollution by toxic heavy metals is a major cause of this problem, and it can destroy ecosystems, spread disease, and make drinking ...
Kosar Hikmat Hama Aziz, Rzgar Kareem
doaj   +1 more source

Speciation and fate of copper in sewage treatment works with and without tertiary treatment: The effect of return flows [PDF]

open access: yes, 2014
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Taylor & Francis.The removal of metals from wastewaters is becoming an important issue, with new environmental quality standards ...
Scrimshaw, MD   +3 more
core   +1 more source

Treatment from abandoned mine landfill leachates. Adsorption technology

open access: yesJournal of Materials Research and Technology, 2019
This study defines the optimal parameters that allow the use of red mud waste from the Bayer process to remove heavy metals from leachate from an abandoned mine.
Julia Ayala, Begoña Fernández
doaj   +1 more source

Adsorption of Heavy Metal Ions to Floc-Type Biosorbents [PDF]

open access: yesJournal of Colloid and Interface Science, 2002
Adsorption of cadmium and lead ions to floc-type biosorbents was reported in this work. Two types of biosorbents containing a marine microalga, Heterosigma akashiwo (Hada) Hada, or a purple non-sulfur bacterium, Rhodobacter sphaeroides, were prepared.
Seki, Hideshi, Suzuki, Akira
openaire   +3 more sources

INVESTIGATION OF HEAVY METAL ADSORPTION ON MICROPLASTICS

open access: yesApplied Ecology and Environmental Research, 2019
Microplastics and heavy metals represent two pollutant classes which have adverse impacts on aquatic ecosystems. This study has investigated the adsorption of two heavy metals [Lead (Pb)II and Aluminum (Al)III] on three different types of microplastics [polyethylene terephthalate (PET), polyamide (PA), ethylene vinyl acetate (EVA)].
Öz, Nurtaç   +2 more
openaire   +1 more source

INVESTIGATION OF REMOVING Cr(VI) IONS FROM AQUEOUS SOLUTIONS BY USING WASTE MATERIALS AS ADSORBENT [PDF]

open access: yes, 2013
In the chemistry course of national program our teacher has talked about the pollution problems related to our environment. Subject attracted my interest since all of us should be sensitive for a clean environment and to leave a clean world to the ...
Öktem, Gülce
core  

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