Results 41 to 50 of about 3,583,052 (388)
Bacterial metabolism of quaternary ammonium compounds [PDF]
Applied and Environmental Microbiology, 1977 Of 10 quaternary ammonium compounds tested for biodegradation by the biological oxygen demand technique, only decyl- and hexadecyltrimethylammonium bromides were decomposed by organisms derived from sewage and soil. A mixture consisting of individual strains of Pseudomonas and Xanthomonas grew in solutions containing decyltrimethylammonium bromide as ...
M Alexander, D Dean-Raymond
openaire +3 more sources
Molecules, 2017 Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis.
Tereza Padrtova +9 more
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Laboratory studies on dissolution of nitrogen fertilizers by humidity and precipitation
Agricultural & Environmental Letters, 2020 Aiming at improving fertilizer management by assessing fertilizer dissolution, we compared the hygroscopicity of calcium ammonium nitrate (CAN), ammonium nitrate (NS 27‐4), and nitrate compounds (laboratory grade).
Christian Sigtryggsson +2 more
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Removal of quaternary ammonium compounds in ion exchange process [PDF]
E3S Web of Conferences, 2019 The study attempted to evaluate the effectiveness of ion exchange process in cationic surfactant (benzalkonium chloride, BAC) removal from model solutions.
Klimonda Aleksandra, Kowalska Izabela
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Plant Production Science, 2017 Seed coating with molybdenum compounds improves seedling establishment for rice, wheat, barley, and soybean when such seeds were sown under flooded conditions.
Yoshitaka Hara
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Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode [PDF]
, 2017 Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell ...
Beltrame, Thiago Favarini +5 more
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Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 In this paper, a computer quantum-chemical simulation of the interaction of selenium nanoparticles with quaternary ammonium compounds was carried out, in which models of molecular complexes, electron density distribution, as well as higher populated and ...
A.V. Blinov +6 more
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Photochemical fate of quaternary ammonium compounds in river water.
Environmental Science: Processes & Impacts, 2020 Quaternary ammonium compounds (QACs) are not completely removed during wastewater treatment and are frequently detected in surface waters and sediments.
Priya I. Hora, W. Arnold
semanticscholar +1 more source
Research on the efficiency of filter media / Filtravimo užpildų efektyvumo tyrimai
Mokslas: Lietuvos Ateitis, 2013 The main problems of ground water for drinking purposes in Lithuania include the increased concentration of iron, ammonium and manganese compounds. Organic compounds have the main impact on removing iron, ammonium and manganese compounds. The coagulation
Ramunė Albrektienė +2 more
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Organic Materials, 2022 Among the 1,3,5-trisubstituted 2,4,6-triethylbenzenes bearing pyrazolyl groups, the compounds with 3,5-dimethylpyrazolyl moieties were found to be effective receptors for ammonium ions (NH4 +).
Felix Fuhrmann +2 more
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