Results 41 to 50 of about 11,607 (259)
Effect of Adsorption of Metal Elements Ni and V on the Structure of Humin
Yankuang ceshi, 2023 BACKGROUNDBlack shales are mostly developed in special periods in geological history. They not only record the evolution characteristics of paleoenvironment, paleoclimate and paleontology, but also are carriers of organic matter, oil and gas and various ...
Yin YU +5 more
doaj +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 +2 more
core +3 more sources
Effect of Humin and Chemical Factors on CO2-Fixing Acetogenesis and Methanogenesis
International Journal of Environmental Research and Public Health, 2022 Acetogenesis and methanogenesis have attracted attention as CO2-fixing reactions. Humin, a humic substance insoluble at any pH, has been found to assist CO2-fixing acetogenesis as the sole electron donor.
Biec Nhu Ha +4 more
semanticscholar +1 more source
Reflectance spectroscopy in the prediction of soil organic carbon associated with humic substances [PDF]
Revista Brasileira de Ciência do Solo, 2023 Understanding organic carbon and predominant humic fractions in the soil allows contributes to soil quality management. Conventional fractionation techniques require time, excessive sampling, and high maintenance costs.
Sharon Gomes Ribeiro +7 more
doaj +1 more source
Optimized isolation method of humin fraction from mineral soil material
Environmental Geochemistry and Health, 2021 Humic substances, including humin fraction, play a key role in the fate of organic and inorganic xenobiotics contaminating the environment. Humin is an important fraction of humic substances, which has been the least studied to date.
J. Weber +9 more
semanticscholar +1 more source
BioResources, 2015 To avoid undesired polymerization and maximize the selectivity of alkyl levulinate from the acid-catalyzed conversion of biomass-derived furfuryl alcohol, the effects of catalyst and reaction parameters on the formations of humin and alkyl levulinate ...
Xueying Gao +3 more
doaj +1 more source
Sulfonated sporopollenin as an efficient and recyclable heterogeneous catalyst for dehydration of D-xylose and xylan into furfural [PDF]
, 2016 The natural acidity of sporopollenin, the biopolymer coating the outer walls of pollen grains, was enhanced by the sulfonation of its surface. Modified sporopollenin displaying sulfonic acid groups has been prepared, characterized by elemental analysis ...
Boa, Andrew N. +8 more
core +2 more sources
Pesquisa Agropecuária Brasileira, 2000 Avaliou-se, em um Latossolo Roxo, o efeito de diferentes formas de manejo do solo sobre a matéria orgânica do solo e na biomassa microbiana. Os tratamentos usados foram: mata natural; mata natural até 1976 e café até 1994 (amostragem na projeção da copa ...
MILTON MARCHIORI JÚNIOR +1 more
doaj +1 more source
Accumulation of humic substances in an Oxisol fertilized with pig slurry for 15 years [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2021 The growth of swine production in Brazil has increased the amount of production and use of pig slurry (PS) as soil fertilizer. This product provides nutrients to plants, and a continuous application of this residue usually increases total soil organic ...
Wagner Sacomori +4 more
doaj +1 more source
Indonesian Journal of ChemistrySolid hydrolysate and biochar 2:1 are synthetic humus from hydrothermal carbonization of chicken feather waste and contain humin that can be isolated by IHSS method. The recalcitrant humin is obtained in solid form.
Siti Dewi Fatimah +2 more
doaj +1 more source