Results 31 to 40 of about 871,729 (205)

The effect of biological treatment methods on the concentration of carbonaceous pollutants in the slaughterhouse wastewater: A systematic review

Case Studies in Chemical and Environmental Engineering, 2023
The systematic review conducted in this study aimed to investigate the effect of biological methods of slaughterhouse wastewater treatment (SWWT) on reducing carbonaceous pollution concentration in the effluent.
Arash Derakhshan, Roshanak Rezaei Kalantari, Mahdi Farzadkia, Amir Tiyuri, Ali Esrafili   +4 more
doaj   +1 more source

Development of nanostructured catalysts for catalytic oxidative water purification from organic impurities, including phenolic compounds

Chimica Techno Acta, 2023
The purpose of this work was to create magnetic nanocatalysts that could be used for the oxidation of organic water pollutants – phenol and its derivatives – and to determine the physicochemical characteristics of the catalysts.
Larissa R. Sassykova, Binara T. Dossumova, Madina S. Ilmuratova, Tatyana V. Shakiyeva, Bedelzhan B. Baizhomartov, Albina R. Sassykova, Zhanar M. Zhaxibayeva, Tleutai S. Abildin   +7 more
doaj   +1 more source

Aqueous Systems of Dissolved Oxygen in Reservoir [PDF]

E3S Web of Conferences, 2021
Oxygen plays a crucial role in aquatic ecosystem particularly for supporting aquaculture and hydropower. In freshwater, importance of oxygen is for metabolic respiration and balance for heterotrophic organisms. Oxygen is also involved in various chemical
Liqoarobby R, Sunardi, Suparman Y, Fadilah K   +3 more
doaj   +1 more source

Temperature dependence of singlet oxygen generation by different photosensitizers [PDF]

EPJ Web of Conferences, 2019
The temperature dependences of the lifetimes and the efficiency of singlet oxygen generation for a set of compounds (porphyrins, metalloporphyrins, porphycene, terrylene etc.) has been measured and characterized. Based on the character of the temperature
Starukhin Aleksander, Gorski Aleksander, Dobkowski Jacek   +2 more
doaj   +1 more source

Mikro-Determination of Oxygen in Organic Compounds

Nippon Nōgeikagaku Kaishi, 1954
There are many difficulties in the direct determination of oxygen by the method of UNTERZAUCHER. In this modification, the CO produced by the high temperature-carbon was oxidized with CuO (oxidation-furnace shown in Fig. 1. E) and the CO2 was determined gravimetrically. The temperature of the oxidation furnace was fixed at 235° (Fig. 4).
KONO, Tetsuro, HAYASHI, Enoki, NAKAYAMA, Michiko, SATO, Keiko, SUZUKI, Mizue, ISOBE, Ikuko   +5 more
openaire   +3 more sources

Atmospheric organic matter in clouds: exact masses and molecular formula identification using ultrahigh-resolution FT-ICR mass spectrometry [PDF]

Atmospheric Chemistry and Physics, 2013
Clouds alter the composition of atmospheric aerosol by acting as a medium for interactions between gas- and particulate-phase substances. To determine the cloud water atmospheric organic matter (AOM) composition and study the cloud processing of aerosols,
Y. Zhao, A. G. Hallar, L. R. Mazzoleni
doaj   +1 more source

Conversion of Dagang Vacuum Residue into Oxygen-Containing Organic Compounds by Photo-Oxidation with H2O2 over TiO2

International Journal of Photoenergy, 2011
The photocatalytic depolymerization of Dagang vacuum residue (DVR) was carried out with H2O2 over TiO2 in a photochemical reactor. Most of the organic matter
Heng-Shen Xie, Zhi-Min Zong, Qing Wei, Tong Liu, Jian-Jun Zhao, Pei-Zhi Zhao, Shi-Hua Zhang, Xian-Yong Wei   +7 more
doaj   +1 more source

Upgrading Organic Compounds through the Coupling of Electrooxidation with Hydrogen Evolution

Angewandte Chemie, 2022
The electrocatalytic splitting of water is recognized to be the most sustainable and clean technology for the production of hydrogen (H2). Unfortunately, the efficiency is seriously restricted by the sluggish kinetics of the oxygen evolution reaction ...
Guangbo Chen, Xiao-Di Li, Xinliang Feng
semanticscholar   +1 more source

The Effect of Organic Compounds on Iron Concentration in the Process of Removing Iron from Sulfur-Containing Sodium Aluminate Solution via Oxidation

Metals
In this study, we investigate the effects of adding varying proportions of fulvic acid during the digestion of pyrite on the iron concentration in both dissolved and diluted sodium aluminate solutions.
Jingyi Hao, Daxue Fu, Na Xu, Qing Han
doaj   +1 more source

Widely Targeted Metabolomics Method Reveals Differences in Volatile and Nonvolatile Metabolites in Three Different Varieties of Raw Peanut by GC–MS and HPLC–MS

Molecules
The aim of the present study was to comprehensively analyze and identify the metabolites of different varieties of raw peanut, as well as provide a reference for the utilization of different varieties of peanuts. In this study, three varieties of peanuts,
Jiantao Fu, Yuxing An, Dao Yao, Lijun Chen, Liwen Zhou, Dachun Shen, Sixing Dai, Yinglin Lu, Donglei Sun   +8 more
doaj   +1 more source