Results 31 to 40 of about 1,461,675 (351)

Behaviours of natural organic matter in membrane filtration for surface water treatment : a review [PDF]

, 2006
Membrane application in surface water treatment provides many advantages over conventional treatment. However, this effort is hampered by the fouling issue, which restricts its widespread application due to increases in hydraulic resistances, operational
Ismail, A. F., Salim, Razman, Zularisam, A. W.   +2 more
core   +1 more source

Comparison of extractable soil carbon and dissolved organic carbon by their molecular characteristics

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
The aim of this study was to compare the molecular characteristics of extractable soil carbon from biotopes of the Rašeliník watershed and dissolved organic carbon (DOC) from Rašeliník creek, by using the 0.1M pyrophosphate, 0.01M CaCl2 and Britton ...
Martina Šestauberová, František Novák   +1 more
doaj   +1 more source

Origin and nature of humic substances in the waters of the Amazon River Basin [PDF]

Acta Amazonica, 1980
Humic substances dissolved in "black water, white water, and clear water" rivers of the Amazon River basin were compared were humic substances found in podzolic (spodic) and latosolic (oxic) soils of the Amaon region.
Jerry A. Leenheer
doaj   +1 more source

Chemical and spectroscopic analysis of olive mill waste water during a biological treatment [PDF]

, 2007
The treatment of olive mill waste water was studied on the laboratory scale. Physico–chemical analyses showed the final products had a mean pH of 5.4 without neutralisation and 5.7 when lime was added to the process.
Bailly, Jean-René, El Hajjouji, Houda, Hafidi, Mohamed, Merlina, Georges, Revel, Jean-Claude, Winterton, Peter   +5 more
core   +5 more sources

Assessment of the effect of iron-rich humic substances on hematological parameters in the model of acute posthemorrhagic and iron deficiency anemia

Бюллетень сибирской медицины, 2023
Aim. To assess the effect of iron-rich humic substances on hematological parameters in acute post-hemorrhagic and iron deficiency anemia.Materials and methods.
K. A. Bratishko, L. A. Logvinova, V. V. Ivanov, A. M. Zhirkova, A. A. Ufandeew, E. E. Buyko, A. P. Zima, E. S. Rabcevich, M. V. Kuznecova, M. V. Belousov, I. V. Perminova, M. V. Zykova   +11 more
doaj   +1 more source

Humic substances trigger plant immune responses

Chemical and Biological Technologies in Agriculture, 2023
Background Huanglongbing (HLB) is a devastating citrus disease. Before callose deposition, the bacterial infection causes oxidative stress, starting cell damage. Humic substances are among the most efficient antioxidants found in nature.
Rakiely Martins da Silva, Natália Aguiar Canellas, Fábio Lopes Olivares, Alessando Piccolo, Luciano Pasqualoto Canellas   +4 more
doaj   +1 more source

Humic Substances Contribute to Plant Iron Nutrition Acting as Chelators and Biostimulants

Frontiers in Plant Science, 2019
Improvement of plant iron nutrition as a consequence of metal complexation by humic substances (HS) extracted from different sources has been widely reported.
Laura Zanin, N. Tomasi, S. Cesco, Z. Varanini, R. Pinton   +4 more
semanticscholar   +1 more source

Haplic Chernozem Properties as Affected by Different Tillage Systems

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
During 2007–2011 we assessed content and quality of humic substances with relationship to soil structure. Object of study was Haplic Chernozem (Hrušovany nad Jevišovkou, Czech Republic) under three different tillage systems: – conventional ploughing to a
Magdalena Hábová, Lubica Pospíšilová , Jaroslava Novotná, Barbora Badalíková, Lubomír Jurica   +4 more
doaj   +1 more source

Humic Substances Extracted by Alkali Are Invalid Proxies for the Dynamics and Functions of Organic Matter in Terrestrial and Aquatic Ecosystems.

Journal of Environmental Quality, 2019
The conceptual rigor of using organic materials extracted from soil by alkali, called , as proxies for soil organic matter has been questioned for almost 180 years.
M. Kleber, J. Lehmann
semanticscholar   +1 more source

Possible role of organic matter in radiocaesium adsorption in soils [PDF]

, 2002
The aim of this review is to examine the hypothesis that organic matter decreases the adsorption of radiocaesium on clay minerals. The factors that determine radiocaesium mobility and bioavailability in soil are briefly outlined to show why a ...
Dumat, Camille, Staunton, S., Zsolnay, A.   +2 more
core   +4 more sources