Results 31 to 40 of about 12,669 (233)

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1769-1795, April 2026.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Photocatalytic Removal of Hexavalet Chromium and Divalent Nickel fromAqueous Solution by UV Irradiation in the Presence of Titanium Dioxide Vanoparticles [PDF]

سلامت و محیط, 2010
"n "n "nBackgrounds and Objectives: Industrial wastewater included the heavy metal is one of the important sources of environmental pollution. Hexavalent chromiumand divalent nickel are founded in plating wastewater which is harmful for human health and ...
M.R Samarghandi, M Bordbar, A.R Khataee, A.R Rahmani, M. T Samadi, M Shirzad Siboni   +5 more
doaj  

Reduction of Cr(VI) compounds by the immobilized cells of sulfate-reducing bacteria Desulfomicrobium sp. CrR3

Біологічні студії, 2020
Immobilization of microorganisms is an effective method of intensification of wastewater purification form chromate-containing compounds. This paper presents a method of sulfate-reducing bacteria immobilization in agar developed in order to determine the
T. B. Peretyatko, K. V. Sholiak, A. A. Halushka, I. M. Stakhera, H. V. Tsehelyk   +4 more
doaj   +1 more source

Improved atmospheric sampling of hexavalent chromium [PDF]

Journal of the Air & Waste Management Association, 2013
Hexavalent chromium (Cr(VI)) and trivalent chromium (Cr(III)) are the primary chromium oxidation states found in ambient atmospheric particulate matter. While Cr(III) is relatively nontoxic, Cr(VI) is toxic and exposure to Cr(VI) may lead to cancer, nasal damage, asthma, bronchitis, and pneumonitis.
Mehdi Amouei, Torkmahalleh, Chang-Ho, Yu, Lin, Lin, Zhihua, Fan, Julie L, Swift, Linda, Bonanno, Don H, Rasmussen, Thomas M, Holsen, Philip K, Hopke   +8 more
openaire   +2 more sources

Propane Dehydrogenation Over Reduced CeO2 and CeZrO2

ChemCatChem, Volume 18, Issue 6, 27 March 2026.
Ceria, a non‐noble metal oxide considered inactive for propane dehydrogenation, is transformed into an active catalyst via a deep, bulk‐level reduction pre‐treatment that generates new active sites and unlocks alternative low‐energy pathways for this process.
Benjamín Bohigues, Laura Hernández, Aroa Alós, Francisco Gonell, Manuel Moliner, Mercedes Boronat, Pedro Serna   +6 more
wiley   +1 more source

The Electrochemical Treatment of Toxic Hexavalent Chromium from Industrial Effluents using Rotating Cylinder Electrode Cell

International Journal of Electrochemical Science, 2009
This paper investigates a method to electro reduce toxic hexavelent chromium to trivalent state using rotating disc electrode (RDE) and rotating cylinder electrode (RCE) cell.
E.M. Elsayed, A.E. Saba
doaj   +1 more source

Bacterial reduction of hexavalent chromium

Journal of Industrial Microbiology, 1995
Cr(VI)-reducing bacteria are widespread and Cr(VI) reduction occurs under both aerobic and anaerobic conditions. Under aerobic conditions, both NADH and endogenous cell reserves may serve as the electron donor for Cr(VI) reduction. Under anaerobic conditions, electron transport systems containing cytochromes appear to be involved in Cr(VI) reduction ...
Y T, Wang, H, Shen
openaire   +2 more sources

Resistome flow in global landfill systems

iMetaOmics, Volume 3, Issue 1, March 2026.
Global landfill systems represent key hubs of resistome, serving as dynamic reservoirs and amplifiers through plasmid‐driven gene mobility. Waste flows and environmental pathways sustain the transboundary resistome networks, accelerating resistance dissemination across ecosystems.
Wenqing Hong, Rui Zhang, Xiaoxing Lin, Yangqing Wang, Shu Yang, Farees ud din Mufti, Yuping Yao, Guowei Zhou, Chuanwu Xi, Weixi Shu, Gordon Price, Youcai Zhao, Liyan Song   +12 more
wiley   +1 more source

The Effect of Vitamin A on Testis Weight and Sexual Glands on Albino Male Mice Treated with Hexavalent Chromium

مجلة بغداد للعلوم, 2014
This study was conducted to determine the effect of vitamin A ( 10 mg/kg ) on avearage testis weight and sexual glands ( Prostate and Seminal Vesicle ) for albino male mice treated with Hexavalent chromium ( 1000 ppm ) .The current study 40 mice were ...
Baghdad Science Journal
doaj   +1 more source

The survey of chromium (VI) Adsorption from aqueous solutions by powder and activated Carbon Pine Cones [PDF]

Pizhūhish dar Bihdāsht-i Muḥīṭ., 2017
Background& objective: The hexavalent chromium is a toxic and water-soluble heavy metal that is absorbed and stored through the digestive system and through the skin in the human body. That amount is exceeded in drinking water in Birjand.
Fahimeh Sharifan, Ali Shahidi, Abbas Khashei   +2 more
doaj   +1 more source