Results 51 to 60 of about 5,143,384 (251)

Mercury speciation, transformation, and transportation in soils, atmospheric flux, and implications for risk management : a critical review [PDF]

, 2019
Mercury (Hg) is a potentially harmful trace element in the environment and one of the World Health Organization's foremost chemicals of concern. The threat posed by Hg contaminated soils to humans is pervasive, with an estimated 86 Gg of anthropogenic Hg
Duan, Lei, Hou, Deyi, Mulder, Jan, O'Connor, David, Ok, Yong Sik, Rinklebe, Jörg, Tack, Filip, Wang, Shuxiao, Wu, Qingru   +8 more
core   +2 more sources

Humic and Fulvic Acids [PDF]

, 1996
Poster presentado en el 18th International Meeting on Organic Geochemistry. Part I.
openaire   +1 more source

Eu(III)–Fulvic Acid Complexation: Evidence of Fulvic Acid Concentration Dependent Interactions by Time-Resolved Luminescence Spectroscopy [PDF]

Environmental Science & Technology, 2016
Europium speciation is investigated by time-resolved luminescence spectroscopy (TRLS) in the presence of Suwannee River fulvic acid (SRFA). From complexation isotherms built at different total Eu(III) concentrations, pH values, ionic strength, and SRFA concentrations, it appears that two luminescence behaviors of Eu(III) are occurring.
Kouhail, Yasmine, Benedetti, Marc F., Reiller, Pascal E.   +2 more
openaire   +3 more sources

Effects of biologically active substances used in soybean seed treatment on oil, protein and fibre content of harvested seeds

Plant, Soil and Environment, 2017
In 4-year trials, soybean seeds were treated with the following biologically active substances: Lignohumate B (a mixture of humic acids and fulvic acids); Lexin (a mixture of humic acids and fulvic acids enriched with auxins); brassinosteroid (a ...
Pavel PROCHÁZKA, Přemysl ŠTRANC, Kateřina PAZDERŮ, Jaroslav ŠTRANC, Jan VOSTŘEL   +4 more
doaj   +1 more source

Extraction yield of humic substances from organic materials

Dyna, 2022
At present there is a great advance in the use of organic substances as fertilizers; humic substances are one of them with various forms of extraction.
Irina Pedroso-Rodriguez, Lourdes Yamén González-Sáez, Jesús Luis-Orozco, Liz Pérez-Martínez, Carlo Vandecasteele, Jo Van Caneghem   +5 more
doaj   +1 more source

Remote Modulation of Single‐Atom Catalyst Boosts High‐Valent Cobalt–Oxo Species Generation for Water Purification and Detoxification

Advanced Science, EarlyView.
This study develops a phosphorus‐doped cobalt single‐atom catalyst that enhances high‐valent cobalt–oxo species generation for water purification. This atomic‐level tuning boosts the catalyst's activity by 3.5 times, enabling efficient pollutant degradation. A continuous‐flow reactor achieves high, long‐term removal efficiency, producing water with low
Wen‐Min Wang, Zheng‐Wei Yang, De‐Xiu Wu, Wen‐Long Wang, Qian‐Yuan Wu   +4 more
wiley   +1 more source

Stability of salts and complexes of humic acids [PDF]

, 2009
Základem práce je studium vlivu přítomnosti kovů inkorporovaných do struktury huminových látek při tepelné zátěži za přítomnosti vzdušného kyslíku.
Nováčková, Kristýna
core  

Underwater optical wireless communications : depth dependent variations in attenuation [PDF]

, 2013
Depth variations in the attenuation coefficient for light in the ocean were calculated using a one-parameter model based on the chlorophyll-a concentration Cc and experimentally-determined Gaussian chlorophyll-depth profiles.
Green, Roger, Johnson, Laura J., Leeson, Mark S.   +2 more
core   +1 more source

Fe(II)/Chlorine‐Driven Advanced Oxidation of Textile Dyes in a Tubular Microreactor: Continuous‐Flow Performance and Matrix Effects

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The Fe(II)/chlorine system has emerged as a promising advanced oxidation technology for water treatment, yet its application in continuous‐flow systems remains unexplored. This study presents the first comprehensive investigation of the Fe(II)/chlorine process in a tubular microreactor, a setup that significantly enhances mass transfer and ...
Abderrahmane Talbi, Slimane Merouani, Aissa Dehane   +2 more
wiley   +1 more source

Complexation and Sorption of Europium(III) Ions onto Clay Minerals in the Presence of Fulvic Acids

Adsorption Science & Technology, 2004
The effect of fulvic acids (FA) on the sorption of europium(III) ions from aqueous solution onto Gluhovsky kaolinite and Cherkasky montmorillonite was studied.
G. Pshinko, L. Spasenova, B. Kornilovich
doaj   +1 more source