Results 291 to 300 of about 1,461,675 (351)

Removal of humic substances from reverse osmosis (RO) and nanofiltration (NF) concentrated leachate using continuously ozone generation-reaction treatment equipment

Waste Management, 2016
Huawei Wang, Yingjie Sun
exaly   +2 more sources

Research on complexation ability, aromaticity, mobility and cytotoxicity of humic-like substances during degradation process by electrochemical oxidation.

Environmental Pollution, 2019
The humic-like substances were the main organic components in most wastewater (e.g. domestic sewage, toilet wastewater and landfill leachate). Two types of actual humic-like substances (fulvic acid (FA) and biologically treated landfill leachate (BTLL ...
Yang Deng, N. Chen, Chuanping Feng, Fangxin Chen, Haishuang Wang, Zhengyuan Feng, Yuhan Zheng, Peijing Kuang, Weiwu Hu   +8 more
semanticscholar   +1 more source

Antiandrogenic activity of humic substances

Science of The Total Environment, 2012
For long, natural organic matter (NOM) composed mainly of humic substances (HS) were regarded as inert in the ecosystems with respect to their possible chemical interaction with exposed organisms. However recently, NOM have been shown to elicit various adverse effects generally attributed to synthetic xenobiotics, including estrogenic effects ...
Michal, Bittner, Nadine, Saul, Christian E W, Steinberg   +2 more
openaire   +2 more sources

Adsorption of Glyphosate by Humic Substances

Journal of Agricultural and Food Chemistry, 1996
Four humic substances were extracted from a peat (HA1) and a volcanic soil (HA2), an oxidized coal (HA3), and a lignite (HA4). The four humic materials presented distinct differences in their chemical and physical−chemical characteristics as assessed by chemical methods, 13C-NMR spectroscopy, and high-performance size exclusion chromatography.
A. PICCOLO, CELANO, Giuseppe, P. CONTE
openaire   +2 more sources

Removal of humic substances by biosorption

Journal of Environmental Sciences, 2008
Fungal pellets of Aspergillus niger 405, Aspergillus ustus 326, and Stachybotrys sp. 1103 were used for the removal of humic substances from aqueous solutions. Batchwise biosorption, carried out at pH 6 and 25 degrees C, was monitored spectrophotometrically and the process described with Freundlich's model.
Vuković Domanovac, Marija, Domanovac, Tomislav, Briški, Felicita   +2 more
openaire   +4 more sources

Involvement of humic substances in regrowth

International Journal of Food Microbiology, 2004
There appear to be interactions in the distribution system that complicate the ability to use AOC/BDOC as an independent assessment of regrowth potential. Two such complications are the limitation of the assays themselves and the potential interaction between the organic carbon concentration with the presence of disinfectants and pipe materials.
openaire   +2 more sources

Human lung injury following exposure to humic substances and humic-like substances

Environmental Geochemistry and Health, 2017
Among the myriad particles the human respiratory tract is exposed to, a significant number are distinctive in that they include humic substances (HS) and humic-like substances (HULIS) as organic components. HS are heterogeneous, amorphous, organic materials which are ubiquitous occurring in all terrestrial and aqueous environments.
Andrew J. Ghio, Michael C. Madden
openaire   +2 more sources

Humic substances derived from unconventional resources: extraction, properties, environmental impacts, and prospects

Environmental science and pollution research international, 2023
O. Ore, A. Adeola, Oluwaseun Fapohunda, Demilade T. Adedipe, A. A. Bayode, F. Adebiyi   +5 more
semanticscholar   +1 more source

Humic Substances and Plant Nutrition

1995
Since the studies by Liebig (1856), it is well known that plants, as long as they are adequately supplied with light and mineral nutrients, can live in the absence of the organic and inorganic structural components of the soil. Nowadays the use of hydroponics is popular not only among plant physiologists but also in certain commercial activities.
VARANINI, Zeno, R. PINTON
openaire   +2 more sources

On the nature of humic substances

Eurasian Soil Science, 2015
It is argued that the isolation of low-molecular-weight compounds from humic substances does not prove their supramolecular nature, because small molecules can be sorbed on macromolecules by interacting with them due to noncovalent bonds. The relative mobility of molecular segments in humic substances has been proposed to be used as a criterion for the
G. N. Fedotov, S. A. Shoba
openaire   +1 more source