Results 211 to 220 of about 214,319 (261)

Organoclay Sorption of Benzene as a Function of Total Organic Carbon Content

Journal of Colloid and Interface Science, 2002
The sorption of benzene to bentonite, activated carbon, and two organo-clays synthesized with the quaternary ammonium organic cations hexadecyltrimethylammonium (HDTMA) and benzyltriethylammonium (BTEA) was quantified as a function of total organic carbon content.
S E Burns
exaly   +3 more sources

Changes in the content of soil organic carbon and total nitrogen in the organic and conventional cropping systems

2023
Maintaining and increasing the stock of soil organic carbon is of vital importance in maintaining the soil fertility. In present research the changes in the content of organic carbon (SOC) and total nitrogen (Ntot) in the soil are investigated. The data is collected from the long-term field experiment, which compares organic and conventional farming ...
Kuht, Jaan, Eremeev, Viacheslav, Loit, Evelin, Alaru, Maarika, Mäeorg, Erkki, Talgre, Liina, Luik, Anne   +6 more
openaire   +1 more source

Total Organic Carbon Content Determined From Well Logs

SPE Formation Evaluation, 1988
Summary Total organic-carbon (TOC) content present in potential source rocks significantly affects the response of various well logs. This paper discusses and illustrates well-log anomalies caused by TOC as observed on various wireline measurements, including resistivity (or conductivity), acoustic, nuclear (density and neutron), gamma ...
Walter H. Fertl, George V. Chilingar
openaire   +1 more source

The Isiokpo Oil-Pipeline Leakage: Total Organic Carbon/Organic Matter Contents of Affected Soils

Chemistry & Biodiversity, 2005
The environmental impact of the 1997 leakage of the high-pressure crude-oil pipeline at Isiokpo in the Niger Delta in the southeast of Nigeria was evaluated, with particular reference to total-organic-carbon (TOC) and total-organic-matter (TOM) contents of soils within the vicinity of the oil spillage.
Leo C, Osuji, Samuel O, Adesiyan
openaire   +2 more sources

Effect of total organic carbon content and structure on the electrokinetic behavior of organoclay suspensions

Journal of Colloid and Interface Science, 2010
This experimental investigation measured the zeta potential of the clay mineral, montmorillonite, which was modified with six different quaternary ammonium cations. The organic cations were chosen to quantify the effect of cation functional groups, including chain length and cation size, on the resulting zeta potential; each of the six cations were ...
B, Bate, S E, Burns
openaire   +2 more sources

Determination of Total Organic Carbon Content and δ¹³C in Carbonate‐Rich Detrital Sediments

Geostandards and Geoanalytical Research, 2007
The determination of total organic carbon content and composition in detrital sediments requires careful removal of their carbonate minerals. In detrital sediments containing large amounts of carbonates, including dolomite, this can only be achieved by liquid acid leaching that may solubilise a significant proportion of the organic carbon. For a set of
Galy, Valier, Bouchez, Julien, France-Lanord, Christian   +2 more
openaire   +4 more sources

Degradation of glyphosate in a Colombian soil is influenced by temperature, total organic carbon content and pH

Environmental Pollution, 2020
Glyphosate is one of the most used herbicides in the world. The fate of glyphosate in tropical soils may be different from that in soils from temperate regions. In particular, the amounts and types of non-extractable residues (NER) may differ considerably, resulting in different relative contributions of xenoNER (sorbed and sequestered parent compound)
Angelica M, Muskus, Martin, Krauss, Anja, Miltner, Ute, Hamer, Karolina M, Nowak   +4 more
openaire   +2 more sources

Predict Continuous Total Organic Carbon Content by Support Vector Regression

81st EAGE Conference and Exhibition 2019, 2019
Summary Total organic carbon (TOC) is a significant factor to evaluate hydrocarbon potential of the unconventional reservoir, which is difficult to obtain the continuous and accurate prediction result by traditional methods. Support vector machine is an efficient supervised learning artificial intelligence algorithm, which performs well in ...
J. Rui, H. Zhang, Q. Guo
openaire   +1 more source

Determination of Total Organic Carbon Content in Shale Formations With Regression Analysis

Journal of Energy Resources Technology, 2018
By correcting both the positive and negative ΔlogR separation resulting from the resistivity in organic-deficient shales, the traditional ΔlogR correlation is modified, validated, and applied to determine the total organic carbon (TOC) content in shale formations.
Jianguo Wang, Daihong Gu, Wei Guo, Haijie Zhang, Daoyong Yang   +4 more
openaire   +1 more source

Total organic carbon content as an index to estimate the sorption capacity of micro- and nano-plastics for hydrophobic organic contaminants

Chemosphere, 2023
The worldwide existing micro- and nano-plastics (MNPs) showed high sorption capacity for hydrophobic organic contaminants (HOCs), and thus leading to change of the environmental behaviors and fates of HOCs. However, there is a lack of general index for evaluating the sorption capacity of MNPs for HOCs.
Ronggang, Zheng, Qingcun, Li, Peng, Li, Li, Li, Jingfu, Liu   +4 more
openaire   +2 more sources