Results 21 to 30 of about 63,548 (216)
Nutritional requirements for the production of dithiolopyrrolone antibiotics by Saccharothrix algeriensis NRRL B-24137 [PDF]
, 2006 The amino acid and humic acid requirements of Saccharothrix algeriensis NRRL B-24137 for growth and production of the dithiolopyrrolone antibiotics were studied in a semi-synthetic medium (SSM).
Bouras, Noureddine +3 more
core +2 more sources
Utilisation of chemically treated coal [PDF]
Acta Montanistica Slovaca, 2002 The numerous application of coal with high content of humic substances are known. They are used in many branches of industry. The complex study of the composition of coal from upper Nitra mines has directed research to its application in the field of ...
Beovská Mária +2 more
doaj
C, 2022 The possibility of increasing the complexity of the operational properties of environmentally safe biodegradable polymer hydrogel materials based on hydroxypropyl methylcellulose due to modification by humic acids from lignite is considered.
Denis Miroshnichenko +5 more
doaj +1 more source
Extraction of humic acid by coacervate: Investigation of direct and back processes [PDF]
, 2012 The two aqueous phases extraction process is widely used in environmental clean up of industrial effluents and fine chemical products for their reuse.
Derriche, Zoubir +4 more
core +3 more sources
Acclimation with humic acids enhances maize and tomato tolerance to salinity
Chemical and Biological Technologies in Agriculture, 2021 Background Salinity is one of the major environmental threats to agriculture, limiting plant growth and reducing crop yield. The use of humic substances to alleviate salt stress in plants is well reported, but the mechanisms remain unclear.
Aline Costa Souza +10 more
doaj +1 more source
Бюллетень Почвенного института им. В.В. Докучаева, 2018 Double-shot pyrolysis with gas chromatography and mass detection (Double-shot GC MS) was conducted for a sample of typical chernozem and humic acids separated from it. The humic acids preparations were pyrolyzed at 500, 600 and 700°C.
V. A. Kholodov +3 more
doaj +1 more source
Interaction of metal ions with humic acids of brown coals of Kazakhstan
Journal of Experimental Nanoscience, 2020 This paper investigates interaction processes of the Fe3+, Cu2+, Ni2+, and Co2+ cations with humic acids isolated from brown coals of Ekibastuz basin.
A. Dauletbay +3 more
doaj +1 more source
Properties of humic acids from copper tailings 20 years after reclamation [PDF]
Journal of the Serbian Chemical Society, 2020 Part of Cu post flotation tailings of Serbia ZiJin Bor Copper, Serbia, was reclaimed by restoration of top soil with arable soils, and revegetation in 1991.
Radmanović Svjetlana B. +5 more
doaj +1 more source
Planta Daninha, 2001 Este trabalho foi desenvolvido com o objetivo de avaliar a sorção do atrazine em complexos organominerais predominantes em solos tropicais. A amostra de herbicida utilizada na experimentação continha 97% de pureza. Alíquotas de 10 mL das soluções de 0,0;
S.O. Procópio +8 more
doaj +1 more source
Dissolved humic substances supplied as potential enhancers of Cu, Cd, and Pb adsorption by two different mangrove sediments [PDF]
, 2018 Purpose The external supply of humic substances has been recently suggested for the remediation of metal-polluted sediments; however, little is known about how to supply them and their effects on metal mobility.
Barros Dobbss, Leonardo +4 more
core +1 more source