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volatilization, etc ; chromium; distillation; energy; ethanol; glass; potassium; Show all 7 Subjects
Abstract:
... This work utilized the simplicity of a so-called membraneless vaporization (MBL-VP) unit as a gas separator for the colorimetric determination of ethanol in alcoholic beverages. A beverage sample with a volume of 1 mL was directly injected into a small container which was hung from a lid inside a closed 40 mL reused glass bottle without pretreatment such as distillation. An acidified potassium dic ...
volatilization, etc ; air; coasts; marine pollution; summer; Chile; Show all 6 Subjects
Abstract:
... Air-sea exchange of POPs and PAHs was assessed in Concepción Bay during January, summer 2015. Results showed low levels, in air and water, for POPs (1–20 pg m⁻³, and 6–50 pg L⁻¹, respectively) and for ΣPAHs (1–2 ng m⁻³ and 1–2 ng L⁻¹, respectively). The highest levels were found for PBDEs (200–20,000 pg L⁻¹) in the water samples (3-fold times higher than PCBs and OCP) and PBDE209 accounted for 90% ...
volatilization, etc ; alkanes; droplets; heat treatment; liquids; perfluorocarbons; temperature; Show all 7 Subjects
Abstract:
... Vaporizable hydrocarbon-in-fluorocarbon endoskeletal droplets are a unique category of phase-change emulsions with interesting physical and thermodynamic features. Here, we show microfluidic fabrication of various morphologies, such as solid-in-liquid, liquid-in-solid, and Janus-type, of complex solid n-C₂₀H₄₂ or n-C₂₁H₄₄ and liquid n-C₅F₁₂ droplets. Furthermore, we investigated the vaporization b ...
volatilization, etc ; air quality; databases; folpet; metolachlor; models; France; Show all 7 Subjects
Abstract:
... A module to simulate the volatilization of pesticides from soils and plants was implemented in the air quality model CHIMERE in order to simulate spatiotemporal distribution of pesticide atmospheric concentrations. Pesticide applications are spatially distributed according to the quantities of pesticides sold per municipality in France (recorded in the French BNVD-S database) and are temporally di ...
volatilization, etc ; encapsulation; fluorescence; odors; stoichiometry; temperature; titration; tobacco; vanillin; Show all 9 Subjects
Abstract:
... Ethyl vanillin (EVA) is one of the most popular spices in the world, but it is unstable and is prone to lose its aroma. Host–Guest encapsulation by supramolecular hosts can improve stability of fragrance molecules and endow them with excellent heat-controlled release properties to satisfy requirements in food, cosmetic and tobacco, etc. Herein, two acyclic cucurbit[n]urils (ACBs, M1 and M2) inclus ...
volatilization, etc ; air; dicamba; environmental management; glyphosate; imazethapyr; weed control; Show all 7 Subjects
Abstract:
... Expansion of dicamba-resistant crops increased the frequency of off-target movement issues, especially in the midsouthern United States. Six field trials were conducted over two growing seasons with the purpose to determine the contribution of volatilization and physical suspension of particles to the off-target movement of dicamba when applied with glyphosate and imazethapyr - a non-volatile herb ...
volatilization, etc ; anodes; arsenic; electrolytes; leachates; purification methods; sulfuric acid; tin; Show all 8 Subjects
Abstract:
... As the different properties of conventional copper anode slime and scrap copper anode slime (SCAS), the disposal of arsenic before the extraction process is very important. There was simultaneous leaching of As and Sn when the hydrometallurgical process or the sulfation roasting-leaching was applied to treat arsenic in the SCAS. It was difficult to achieve the effective separation of arsenic and t ...
volatilization, etc ; earthworms; lettuce; losses from soil; nitrogen; research; soil; urea; Show all 8 Subjects
Abstract:
... Earthworm activities not only increase nitrogen (N) uptake by crops, but also lead to N losing to environment. Thus, the present study examined the transformation of ¹⁵N-labeled urea with and without earthworms (Metaphire guillelmi) in a soil-lettuce system. We evaluated lettuce ¹⁵N uptake, ¹⁵N losses including N₂O emission, NH₃ volatilization and leaching, as well as ¹⁵N remaining in soil. Result ...
volatilization, etc ; activation energy; environmental impact; sludge; sulfur; sulfuric acid; waste management; Show all 7 Subjects
Abstract:
... The disposal and management of sulfur-rich sludges (SRS) are challenging issues for the industries due to their adverse environmental impact. The present study reports the detailed characterizations and assessment of the thermo-kinetics of sludge generated from the sulfuric acid plant. In addition, the sulfur was retrieved with the help of the evaporation–condensation method. In the active devital ...
volatilization, etc ; air; biodegradation; gas chromatography; lakes; research; surface water; Argentina; Chile; Show all 9 Subjects
Abstract:
... In this study, the occurrence and diffusive air-water exchange of POPs in Panguipulli Lake (39°42′S-72°13′W), an oligotrophic lake located in northern Patagonia (Chile), were determined. Air and water samples were collected between March and August 2017 (autumn-winter) and analyzed for concentrations of OCPs (α-HCH, β-HCH, γ-HCH and HCB) and PCBs (PCB-28,-52,-101,-118,-153,-158,-180) using gas chr ...
volatilization, etc ; bioavailability; chlorination; fertilizers; green chemistry; phosphorus; rock phosphate; sewage sludge; Show all 8 Subjects
Abstract:
... Phosphorus (P) plays an essential role in crops growth. Due to the overexploitation of non-renewable phosphate rock deposits and their uneven distribution worldwide, P has turned into a strategic resource for the modern agricultural system. Finding sustainable ways to secure P for fertilizer applications has become critical. Sewage sludge (SS) is a waste material containing P in high amounts. Amon ...
volatilization, etc ; Gibbs free energy; biomass; computer software; databases; liquids; markets; prediction; Show all 8 Subjects
Abstract:
... Process simulation approaches based on thermodynamics calculations can provide good capabilities to predict the ash behavior of biomasses and their mixtures. In the present work, a critical assessment of such simulations was performed in the field of biomass ashes, and experimentally checked to be at equilibrium. Two commercial thermodynamic databases, FToxid and GTOX, were used together with the ...
volatilization, etc ; absorbents; absorption; carbon dioxide; energy; environmental management; ethanolamine; heat; liquids; piperazine; Show all 10 Subjects
Abstract:
... Chemical absorption method plays an important role in the process of CO₂ separation. One major problem for chemical absorption is huge energy consumption, which is affected by the performance of absorbents. Developing a type of absorbent with high absorption capacity and low regenerative energy consumption is a research topic that attracts attention. The combination of two or more amines is one wa ...
volatilization, etc ; energy; enthalpy; gas chromatography; heat; liquids; octanol; pollution; temperature; toxicity; vapors; Show all 11 Subjects
Abstract:
... Nitrated and oxygenated polycyclic aromatic hydrocarbons (NPAHs and OPAHs) are receiving attention because of their high toxicity compared with parent PAHs. However, the experimental data of their physicochemical properties has been limited. This study proposed the gas chromatographic retention time (GC-RT) technique as an effective alternative one to determine octanol-air partition coefficients ( ...
volatilization, etc ; acid value; antioxidant activity; hydrogen; lipid peroxides; peroxide value; soybean oil; Show all 7 Subjects
Abstract:
... Sesamol, as a natural antioxidant used in edible oils, will be lost during heating process in the pathway of volatilization or transformation. The present study was to (i) examine the effects of temperatures, acid value (AV), free fatty acids (FFAs), and peroxide value (POV) on the thermal loss of sesamol in soybean oil (SBO); (ii) to investigate the corresponding transformation mechanism of sesam ...
volatilization, etc ; carbon dioxide; chemical structure; enthalpy; equations; quantum mechanics; solubility; vapor pressure; Show all 8 Subjects
Abstract:
... Two popular thermodynamic modeling frameworks, namely, the PC-SAFT equation of state and the COSMO-RS model, are benchmarked for their performance in predicting the thermodynamic properties of pure ionic liquids (ILs) and the solubility of CO₂ in ILs. The ultimate goal is to provide an illustration of what to expect from these frameworks when applied to ILs in a purely predictive way with establis ...
volatilization, etc ; absorptivity; copper; hydrobromic acid; microwave radiation; pyrolysis; temperature; tin; waste management; zinc; Show all 10 Subjects
Abstract:
... This study reports the enrichment behaviors of heavy metals, including copper, tin, lead and zinc, in the process of microwave pyrolysis of spent printed circuit boards (SPCBs). The SPCB had good microwave absorptivity. Under the optimal conditions of microwave power of 700 W, pyrolysis temperature of 400 °C, dwell time of 5 min, N₂ gas flow rate of 1.2 L/min, and load mass of 5 g, the yield of py ...
Marcos Renan Besen; Evandro Antonio Minato; Bruno Maia Abdo Rahmen Cassim; Celso Rafael Macon; Eder Junior de Oliveira Zampar; Tadeu Takeyoshi Inoue; Marcelo Augusto Batista
volatilization, etc ; ammonia; base saturation; boron; enzymes; hydrolysis; nitrogen; no-tillage; plant analysis; urea; Show all 10 Subjects
Abstract:
... Urea is the most used nitrogen (N) fertilizer worldwide, but its rapid hydrolysis on the soil surface results in N loss in the form of ammonia (NH₃-N). Enzyme inhibitors have been investigated for their ability to reduce NH₃-N volatilization, particularly from no-till and surface-limed soils. This study assessed the efficiency of stabilized fertilizers in reducing NH₃-N volatilization under differ ...
volatilization, etc ; adsorption; bitumen; carbon footprint; energy; nitrogen; polyurethanes; rubber; solvents; storage quality; synergism; temperature; Show all 12 Subjects
Abstract:
... Crumb rubber modified asphalt (CRMA) has been put forward and become a research hotspot due to the environmental pressure and the actual demand for road engineering. However, worrying issues such as poorer storage stability and more serious VOCs emissions have emerged one after another. In this work, waterborne polyurethane (WPU) was employed as the shell material to package the crumb rubber (CR) ...
volatilization, etc ; Elaeis guineensis; field experimentation; half life; metsulfuron; pollution; prediction; research; runoff; soil profiles; Show all 10 Subjects
Abstract:
... The present paper discussed the comparison of the persistence and mobility of metsulfuron-methyl from a residue field trial experiment and simulation using a VARLEACH model. The residue field trial experiment was performed at Sungai Buloh Oil Palm Estate, Selangor. The plots were treated with metsulfuron-methyl at two treatment rates of 15 g a.i ha⁻¹ (T1) and 30 g a.i ha⁻¹ (T2). Soil samples were ...