Auswahl der wissenschaftlichen Literatur zum Thema „Destruction Removal Efficiencies“

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Zeitschriftenartikel zum Thema "Destruction Removal Efficiencies"

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Mounteer, A. H., T. A. Leite, A. C. Lopes, and R. C. Medeiros. "Removing textile mill effluent recalcitrant COD and toxicity using the H2O2/UV system." Water Science and Technology 60, no. 7 (2009): 1895–902. http://dx.doi.org/10.2166/wst.2009.584.

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The potential of the H2O2/UV process for improving quality of an industrial textile effluent before biological treatment was evaluated in the laboratory using a multivariate experimental design to determine the effects of pH, H2O2 dose and reaction time on colour, COD and toxicity removal efficiencies. Increasing reaction time (from 10 to 120 min) and H2O2 dose (from 0 to 5 mmol L−1) significantly improved removal efficiencies, while increasing pH (from 4 to 10) had a negative effect on colour and toxicity removals. Laboratory H2O2/UV treatment of the mill effluent under optimum conditions (pH
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Cocero, M. J., D. Vallelado, R. Torio, E. Alonso, and F. Fdez-Polanco. "Optimisation of the operation variables of a supercritical water oxidation process." Water Science and Technology 42, no. 5-6 (2000): 107–13. http://dx.doi.org/10.2166/wst.2000.0503.

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The unique physical-chemical properties of water above its critical point (374.2°C and 22.1 MPa) makes supercritical water (SCW) an effective reaction medium for oxidation of organic compounds. Gases and many organic compounds are miscible in SCW, so reaction between oxygen and waste is carried out without interface transport constraints. Supercritical water oxidation (SCWO) can give high destruction efficiencies for a wide variety of hazardous wastes, at low reactor residence times. To study the SCWO, experiments were carried out in a pilot plant equipped with a pressure shell and cooled wall
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Mehjabin, Z. Shaikh. "Performance evaluation of common hazardous waste incinerator for ship scraping waste." Indian Journal of Science and Technology 13, no. 16 (2020): 1668–75. https://doi.org/10.17485/IJST/v13i16.249.

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Abstract <strong>Background/Objectives:</strong>&nbsp;Hazardous waste incineration is one of the proven technologies for complete destruction of hazardous wastes. These facilities, when designed and operated properly are capable of destroying the hazardous organic components in waste along with PCBs. If these facilities are designed and not operated efficiently, could act as a significant source of such hazardous substances to the environment. Common hazardous waste incineration facilities are designed based on assumptions regarding the availability of quantity and quality (characteristics) of
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Goodwin, Simon P. "The theory of young cluster disruption." Proceedings of the International Astronomical Union 6, S270 (2010): 283–86. http://dx.doi.org/10.1017/s1743921311000512.

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AbstractMost stars seem to form in clusters, but the vast majority of these clusters do not seem to survive much beyond their embedded phase. The most favoured mechanism for the early destruction of star clusters is the effect of the removal of residual gas by feedback which dramatically changes the cluster potential. The effects of feedback depend on the ratio of the masses of stars and gas, and the velocity dispersion of the stars at the onset of gas removal. As gas removal is delayed by a few Myr from star formation these crucial parameters can change significantly from their initial values
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Wood, Ezra C., Scott C. Herndon, Ed C. Fortner, et al. "Combustion and Destruction/Removal Efficiencies of In-Use Chemical Flares in the Greater Houston Area." Industrial & Engineering Chemistry Research 51, no. 39 (2012): 12685–96. http://dx.doi.org/10.1021/ie202717m.

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Ekengren, Ö., J. E. Burhem, and S. Filipsson. "Treatment of Bleach-Plant Effluents with Membrane Filtration and Sorption Techniques." Water Science and Technology 24, no. 3-4 (1991): 207–18. http://dx.doi.org/10.2166/wst.1991.0477.

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Laboratory experiments have been run with the combination of ultrafiltration (UF) and sorption techniques/reverse osmosis (RO). The use of negatively charged membranes improved both the filtration capacity (flux) and the rejection of organochlorine compounds. The combination of UF and RO used to treat retention in the caustic extraction stage showed high removal of COD, AOX and chloride ions (98.8 - 99.9 %). The content of AOX in the RO-permeate was 0.08 g per ton pulp. The ultrafiltration of three different total bleachery effluents showed a COD removal of 55-60 % and a AOX removal of 65-75 %
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Teo, K. C., C. Yang, R. J. Xie, N. K. Goh, and L. S. Chia. "Destruction of model organic pollutants in water using ozone, UV and their combination (Part I)." Water Science and Technology 47, no. 1 (2003): 191–96. http://dx.doi.org/10.2166/wst.2003.0051.

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The experimental results showed that ozone (O3) oxidation is an effective means to destroy phenolic organic pollutants present in water. High removal efficiencies can be readily achieved for most of the model compounds fortified in aqueous matrices within a reasonable time frame. This study also included the oxidation of phenolic compounds using ozone in combination with ultraviolet (UV) irradiation. The extent of mineralization measured in terms of the losses in total organic carbon is promoted by the joint action of ozone and UV in comparison with using ozone alone.
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Cooper, William J., Michael G. Nickelsen, David E. Meacham, Thomas D. Waite, and Charles N. Kurucz. "High Energy Electron Beam Irradiation: An Advanced Oxidation Process for the Treatment of Aqueous Based Organic Hazardous Wastes." Water Quality Research Journal 27, no. 1 (1992): 69–96. http://dx.doi.org/10.2166/wqrj.1992.005.

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Abstract Advanced oxidation processes for the removal and destruction of hazardous organic chemicals in water and wastewater is a research area of increasing interest. Advanced oxidation processes generally consider the hydroxyl radical, OH-, the major reactive transient species. A novel process under development, utilizing high energy electrons, extends this concept to include the simultaneous formation of approximately equal concentrations of oxidizing and reducing species. Irradiation of aqueous solutions results in the formation of the aqueous electron, e−aq, hydrogen atoms, H-, and OH-. T
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Kim, Hee-Jun, Gui-Sook Nam, Jung-Seok Jang, Chan-Hee Won, and Hyun-Woo Kim. "Cold Plasma Treatment for Efficient Control over Algal Bloom Products in Surface Water." Water 11, no. 7 (2019): 1513. http://dx.doi.org/10.3390/w11071513.

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Algal bloom significantly alters the physicochemical properties of water due to drastic pH change, dissolved oxygen depletion/super-saturation, and toxicity, which lead to ecosystem destruction. To prevent this, this study evaluated the reduction performance of algal biomass by applying a non-thermal or cold plasma process. We used chlorophyll-a (chl-a), suspended solids (SS), and turbidity as indicators of the biomass. Results demonstrated that their removal efficiencies were in the ranges 88–98%, 70%–90%, and 53%–91%, respectively. Field emission scanning electron microscopy indicated how th
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Brandt, Emanuel Manfred Freire, Cláudio Leite de Souza, Erick Javier Centeno Mora, Juliana Mattos Bohrer Santos, and Carlos Augusto de Lemos Chernicharo. "Part B: Advances in gas emission control techniques for anaerobic-based STPs Technical Note 5 – Biofiltration systems for waste gas treatment." Cadernos Técnicos Engenharia Sanitária e Ambiental 1, no. 2 (2021): 63–76. http://dx.doi.org/10.5327/276455760102005.

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Nos efluentes de reatores anaeróbios estão presentes gases produzidos durante o processo de tratamento (e.g. CH4 and H2 S). The techniques for controlling the emissions of the gases presented in this collection of Technical Notes (TNs) are based on the principle of desorption of the dissolved gases in effluent, through their transfer to the gaseous phase. The resulting gas, called waste gas, must be properly managed, for example, by means of its destruction/oxidation in biofilters or biotrickling filters. These biofiltration techniques can also be used to treat the waste gas generated in confi
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Konferenzberichte zum Thema "Destruction Removal Efficiencies"

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Fajardo, J., B. Sarria, J. Padron, and D. Barreto. "Thermoeconomic Analysis of PVC Production Plant Reactors Cooling System." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70171.

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In this work the results of the research made to PVC production plant reactors cooling system are included. The heat generated in the reactor must be removed to maintain its temperature at an optimal range between 50 and 70 ° C. To assess the cooling system exergetic and Thermoeconomic indicators were used and it was observed that: (i) The greatest exergetic efficiencies arise in compressors. (ii) The greatest destruction of exergy and reasons of destruction of exergy cost and lower exergoeconomic factors are presented in the evaporative condenser. (iii) The heat exchange equipment has highest
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Berichte der Organisationen zum Thema "Destruction Removal Efficiencies"

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Olsen. PR-179-10203-R01 Characterization of Oxidation Catalyst Performance - VOCs and Temperature Variation. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010753.

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Oxidation catalysts are typically specified to reduce carbon monoxide (CO), Hazardous Air Pollutants (HAPs) and/or Volatile Organic Compounds (VOCs) from lean-burn engines. The application of catalysts to HAPs and VOC destruction is more recent, so greater effort has been placed on optimizing for CO oxidation than HAPs or VOC oxidation. In general, the catalysts consist of a porous, high surface area -alumina carrier material on a ceramic (typically cordierite) or stainless steel substrate. Although the alumina has some effectiveness in oxidation at high temperature, its primary role here is t
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