• In the present study, kinetics of degradation of EDTA (20,000 mg/l) by employing either Photo-Fenton process using UV (15 W λ max = 253.7 nm) or Sono-Fenton process using ultrasound at 130 KHz or simultaneous Sono-Photo Fenton process has been investigated. (scirp.org)
  • Formation of amides was con - firmed during the degradation processes. (scirp.org)
  • 10] Bhatkhande D.S, Pangarkar V.G., Beenackers A.A.C.M., Photocatalytic Degradation for Environmental Applications: a Review, Journal of Chemical Technology and Biotechnology , 77 (1): 102-116 (2002). (ac.ir)
  • 10] C. Galindo, P. Jaques and A. Kalt: "Photochemical and photocatalytic degradation of an indigoid dye: a case study of acid blue 74 (AB74)", Journal of Photochemistry and Photobiology A: Chemistry, Vol. 141, (2001), pp. 47-56. (edu.pl)
  • 12] N.H. Ince: "Critical effect of hydrogen peroxide in photochemical dye degradation", Water Research, Vol. 33, (1999), pp. 1080-1084. (edu.pl)
  • Photochemical degradation method, such as: UV/H 2 O 2 system, was capable to achieve total mineralization of OTC at its optimized condition. (unair.ac.id)
  • He has a lot of experience in the field of sol-gel processing and photocatalytic degradation organic materials from industrial wastewaters. (degruyter.com)
  • In order to achieve the complete degradation of pollutants, the usage of Advanced Oxidation Methods (AOPs) in dairy wastewater was considerably increasing. (eeer.org)
  • Various parameters affecting the degradation process viz. (scirp.org)
  • T. Pandiyan, O. M. Rivas, J. O. Martinez, G. B. Amezcua and M. A. M. Carrillo, "Comparison of Methods for the Photochemical Degradation of Chlorophenols," Journal of Photochemistry and Photobiology A: Chemistry, Vol. 146, No. 3, 2002, pp. 149-155. (scirp.org)
  • S. K. Kansal, M. Singh and D. Sud, "Parametric Optimization of Photocatalytic Degradation of Catechol in Aqueous Solutions by Response Surface Methodology," Indian Journal of Chemical Technology, Vol. 14, No. 2, 2007, pp. 145-153. (scirp.org)
  • P. Saritha, C. Aparna, V. Himabindu and Y. Anjaneyulu, "Comparison of Various Advanced Oxidation Processes for the Degradation of 4-Chloro-2-nitrophenol," Journal of Hazardous Materials, Vol. 149, No. 3, 2007, pp. 609614. (scirp.org)
  • Advanced oxidation processes (AOPs), in a broad sense, are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials in water and wastewater by oxidation through reactions with hydroxyl radicals (·OH). (wikipedia.org)
  • In real-world applications of wastewater treatment, however, this term usually refers more specifically to a subset of such chemical processes that employ ozone (O3), hydrogen peroxide (H2O2) and/or UV light. (wikipedia.org)
  • Wastewater from molasses processing contains a large amount of coloured substances that give a recalcitrant dark brown colour and high organic load to the effluent. (ac.ir)
  • AU - Tuin,B J W, AU - Bos,A A C M, PY - 2004/4/14/pubmed PY - 2004/7/28/medline PY - 2004/4/14/entrez SP - 279 EP - 85 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 49 IS - 4 N2 - Wastewater from an Akzo Nobel production site contains refractory sulfur components (cyclic thioethers). (unboundmedicine.com)
  • All the above mentioned processes were found to follow a first order kinetics reaction. (scirp.org)
  • Oxidation of 5,10-dihydro-5,10-dimethylphenazine and 5,10-dihydro-5,10-diethyl-phenazine under different reaction conditions leads to several iodine containing solids. (degruyter.com)
  • At Loughborough University he teaches undergraduate and postgraduate courses in the fields of (i) Chemical Reaction Engineering, (ii) Heterogeneous Catalysis (iii) Heat Transfer Integration (iv) Project Planning, (v) Process Design and (vi) Advanced Process Systems Engineering. (lboro.ac.uk)
  • The interaction of copper sulfate and sunlight in seawater suggests a new mechanism for methyl halide production, most likely via a photochemical reaction or through suppression of normal uptake processes causing overabundant concentrations. (escholarship.org)
  • The oxidation of this amino acid leads to methional that is unstable and photo-reactive and, through the retro-Michael reaction, generates methanethiol (MeSH) and acrolein. (infowine.com)
  • Efficiency of the treatment process was evaluated considering Chemical Oxygen Demand (COD), lactose reduction and process parameters were determined to be reaction time, pH, circulation rate, and H 2 O 2 dosage. (eeer.org)
  • Much more is currently known about molecular photophysics and photochemical reaction dynamics compared to surface photochemistry due to the inability to probe surfaces selectively with sensitivity to oxidation state, spin state, carrier thermalization, lattice distortions, and charge trapping at defect states. (osu.edu)
  • 3] N. Azbar, T. Yonar and K. Kestioglu: "Comparison of various advanced oxidation processes and chemical treatment methods for COD and color removal from a polyester and acetate fiber dyeing effluent", Chemosphere, Vol. 55, (2004), pp. 35-43. (edu.pl)
  • Most emitted air pollution can lead to the formation of secondary pollutants (e.g., tropospheric ozone, peroxyacetyl nitrate), secondary organic aerosols, and photochemical smog [ 6 , 7 ], which is the major cause of a sharp decrease in air quality in numerous regions around the world [ 8 - 10 ]. (nso-journal.org)
  • The possibilities of (partial) oxidation and increasing biodegradability by ozone treatment for these types of compounds have been investigated. (unboundmedicine.com)
  • Also, in the atmosphere iodine is involved in chemical processes that contribute to climate change such as ozone depletion and cloud formation. (ukri.org)
  • We chose this area because the tropics are highly significant for ozone production and loss processes that are affected by volatile iodine compounds. (ukri.org)
  • International journal of hydrogen energy 38: 14595-14617 (2013). (ppaspk.org)
  • The uncertainty range covers soil uptake, photochemical production of hydrogen, the lifetimes of hydrogen and methane, and the hydroxyl radical feedback on methane and hydrogen. (noaa.gov)
  • He then moved to University College London (UCL) and obtained his Masters of Science in Chemical Process Engineering in 2016. (tue.nl)
  • Organic Process Research & Development. (tue.nl)
  • This experience also covers wide range of processing for preparation of TiO 2 -SiO 2 and V 2 O 5 -SiO 2 aerogel and xerogel photocatalysts for removal of cyanides and organic compounds. (degruyter.com)
  • Biological processes such as aerobic and anaerobic, physicochemical processes such as electrocoagulation, membrane process and adsorption were widely used to treat the dairy effluent due to the presence of rich in organic matter [ 9 , 10 ]. (eeer.org)
  • Our proprietary Organic 3-year process enables us to give you the purest and most concentrated bio-available fulvic acid in the world . (optimallyorganic.com)
  • B) The use of photochemical reagents to carry out site-specific reactions on DNA, in particular those involving photo-induced electron transfer. (tcd.ie)
  • This reactive species of oxygen causes what's called photochemical transformation, a process in which light and oxidizing materials produce chemical reactions. (newswise.com)
  • And because the process does not occur in the dark, the amount of sunlight a water body receives also affects reactions. (newswise.com)
  • Bekker, who was not involved in either of the current studies, notes that photochemical processes, in which chemical reactions are driven by different wavelengths of light, can lead to changes in the relative amounts of different forms of sulfur, for instance. (livescience.com)
  • It has long been known that dicarboxylation reactions through the oxidation of hydrocarbons [ 4 , 5 ] or the hydrolysis of cyanogen [ 6 ] represent a major method to produce diacid derivatives in industry. (nso-journal.org)
  • Our project concerns these processes through the study of the molecular nature of living lights (bioluminescence, BL) and typical photochemical reactions that proceed in the absence of light when driven by electronically excited products ('photo'chemistry in the dark). (fapesp.br)
  • Two different synthetic strategies, one based on Baeyer-Mills reactions and the other based on Pd-catalyzed coupling reactions of arylhydrazides and aryl halides, followed by oxidation, were investigated. (beilstein-journals.org)
  • Despite their successful synthesis, using Pd-catalyzed coupling reactions of aryl halides and arylhydrazides [11] followed by Cu(I)-mediated oxidation, the photochemical properties of such compounds have not been studied yet. (beilstein-journals.org)
  • The journal is indexed by Clarivate Analytics services (Biological Abstract, BIOSIS Previews) and has an Impact Factor (June 2023) of 1.5 . (pan.pl)
  • The authors suggest a complex and interdependent dance between biological and geological processes can explain the gap. (livescience.com)
  • If the biological interpretation is correct, some process must have kept the oxygen being produced in check for millions of years, up until the Great Oxidation Event. (livescience.com)
  • Anbar suggests non-biological processes could play a role. (livescience.com)
  • INSPIRE will compare iodocarbon concentration distributions with measurements that indicate biological, chemical and photochemical processes, and carry out experiments in the laboratory and during two research cruises to work out what the main controls on the concentrations of these compounds are. (ukri.org)
  • The association pathway from monomer to oligomer is critical in a range of biological processes and thus it is of a vital importance to elucidate both atomic-resolution structures of intermediates along the pathway as well as the structure of the final state. (lu.se)
  • Over 1,000 journal articles related to the Deepwater Horizon spill are indexed by the Chemical Abstract Service. (bvsalud.org)
  • He is Editor of "Applied Catalysis B: Environmental", one of the most prestigious catalysis journals (Elsevier, Impact Factor 16.683) focusing on catalytic elimination of environmental contaminants, environmental catalysts, catalyst for clean energy, syngas production from sustainable sources, clean catalytic combustions and photocatalysis. (lboro.ac.uk)
  • 1] R. Andreozzi, V. Caprio, A. Insola and R. Marotta: "Advanced oxidation processes (AOP) for water purification and recovery", Catalysis Today, Vol. 53, (1999), pp. 51-59. (edu.pl)
  • These are applied to models from classical catalysis, but also to models for photo-catalytic processes. (fu-berlin.de)
  • Moreover, the dicarboxylation process could be achieved via low-valent transition-metal catalysis, which is facilitated by oxidation metallacyclization to produce corresponding CO 2 incorporated alkyl-metal cycle species and the insertion of another CO 2 into an alkyl-metal bond. (nso-journal.org)
  • Light-driven water oxidation with metal hexacyanometallate heterogeneous catalysts. (ppaspk.org)
  • Furthermore, incomplete thermal oxidation of pollutants also produces numerous noxious byproducts. (nso-journal.org)
  • To assess the key processes associated with volcanic aerosols, we performed a sensitivity analysis of sulfate burden from the Mt. Pinatubo eruption by varying injection heights, emission amount, and stratospheric sulfate's dry effective radius. (noaa.gov)
  • Some scientists had thought the evolution of these organisms triggered the recorded surge in oxygen on Earth called the Great Oxidation Event between 2.3 billion and 2.4 billion years ago. (livescience.com)
  • Why did it take up to 100 million years between the initial puffs of atmospheric oxygen and the Oxidation Event? (livescience.com)
  • The data show that oxygen existed in the environment before the Great Oxidation Event and strongly suggests that photosynthesis that produced oxygen was around before then," Anbar told LiveScience . (livescience.com)
  • There are geological processes that consume oxygen, so even when biology is pumping it into the environment it doesn't necessarily rise strongly in the atmosphere right away," Anbar said. (livescience.com)
  • M. Sorensen and F. H. Frimmel, "Photodegradation of EDTA and NTA in the UV/H2O2 Process," Zeitschrift für Naturforschung, Vol. 50, No. 12, 1995, pp. 1845-1853. (scirp.org)
  • A detailed gas-phase chemistry mechanism is combined with dust surface uptake processes to explore possible impacts of mineral dust on tropospheric chemistry. (ametsoc.org)
  • The results show that mineral dust may influence tropospheric sulfate, nitrate, and O 3 formation by affecting trace gas concentrations and the tropospheric oxidation capacity through surface processes. (ametsoc.org)
  • The journal facilitates better understanding of environmental risks to humans and ecosystems and it also shows the methods for their analysis as well as trends in the search of effective solutions to minimize these risks. (pan.pl)
  • Many of these oxidation products are not captured by conventional sampling methods, leading some researchers to suspect that workers who are exposed to oxidized chemicals may not know it. (cdc.gov)
  • 5] Gonzalez G., Pena M.M., Garcıa M.T., Urue~na M.A., Decolorization of Molasses Effluents by Coagulation-Flocculation Process, Zuckerindustrie , 124 (5): 406-410 (1999). (ac.ir)
  • 6] Guimaraes C., Bento L., Mota M., Biodegradation of Colorants in Refinery Effluents Potential Use of the Fungus Phanerochaetechrysosporium, International Sugar Journal, 101 (1205): 246-251 (1999). (ac.ir)
  • 122 journal papers, 2 books for the Royal Society of Chemistry, 5 book chapters) and 2 patents. (lboro.ac.uk)
  • He is Member of the Editorial Boards of "Chemical Engineering Journal" (Elsevier, Impact Factor 10.652), "Chemical Engineering Journal Advances" (Elsevier), "Journal of Environmental Chemical Engineering" (Elsevier), and "Chemistry in the Environment" (RSC). (lboro.ac.uk)
  • His awards include the Camille Dreyfus Teacher-Scholar Award, AFOSR Young Investigator Award, DOE Early Career Award, Young Innovator Award in NanoEnergy, and Journal of Physical Chemistry/PHYS Division Lectureship. (osu.edu)
  • Under the banner of our flagship diamond open access journal, Chemical Science , we'll be shining a spotlight on cutting-edge chemistry research and giving it the sort of attention that drives scientific progress and makes a difference. (rsc.org)
  • C. Sharma, S. Mohanty, S. Kumar and N. J. Rao, "Gas Chromatographic Analysis of Chlorophenolic, Resin and Fatty Acids in Effluents from Bleaching Processes of Agricultural Residues," International Journal of Environmental Analytical Chemistry, Vol. 64, No. 4, 1996, pp. 289-300. (scirp.org)
  • Despite the fact that oil chemistry and oils spills have been studied for many years, there are still emerging techniques and unknown processes to be explored. (bvsalud.org)
  • The following scheme, adopted from a technical handbook and later refined, describes a possible mechanism of the oxidation of benzene by ·OH. (wikipedia.org)
  • The magnitude of the dust effect strongly depends on the preexisting dust surfaces, the initial conditions, and the selection of model parameters associated with surface uptake processes. (ametsoc.org)
  • Arnab's work is focused on developing intensified reactors and processes to minimize the use of resources and to improve the energy efficiency of chemical systems. (tue.nl)
  • 32.5%, 35.2%, 25%, 83% COD and 40.6%, 43.6%, 38.2%, 80% lactose reduction efficiency were obtained under the operating conditions for O 3 /H 2 O 2 , O 3 /UV, UV/H 2 O 2 and O 3 /UV/H 2 O 2 processes, respectively. (eeer.org)
  • As per this outcome, UV/H 2 O 2 /O 3 process gave more than 65% of COD and 52.36% of lactose reduction efficiency than other hybrid processes. (eeer.org)
  • Our research focuses on the critical role that surface electron dynamics and interfacial charge transfer have on the selectivity and efficiency of catalytic energy conversion processes. (osu.edu)
  • Net photosynthetic rates, maximal photochemical efficiency of PSII (Fv/Fm), oxidation state of ascorbic acid, and lipid peroxidation estimated by malondialdehyde concentrations of limonene-fumigated (LF) plants did not significantly differ from control (C) plants. (uab.cat)
  • The photochemical reflectance index (PRI), an optical indicator of photosynthetic light use efficiency, was higher for LF plants than for C plants at elevated temperatures. (uab.cat)
  • Fujita M., Microbial Decolorization of Melanoidin-Containing Wastewaters: Combined use of Activated Sludge and the Fungus Coriolushirsutus, Journal Bioscience and Bioengergy , 89 (2): 145-150 (2000). (ac.ir)
  • Dairy plants include milk processing, butter manufacturing, cheese/whey manufacturing, ice-cream manufacturing and milk powder productions were generating the maximum volume of effluent in a day by day activities [ 1 ]. (eeer.org)
  • In India, approximately one liter of milk processing produces 10 L of effluent and it may vary in different countries and dairy plants [ 2 ]. (eeer.org)
  • However, the above-mentioned treatment processes produce maximum amount of sludge, periodical maintenance, hydraulic/solid retention time, requirement of pretreatment, cost of electrodes/coagulants/adsorbents, recovery of coagulants/adsorbents, difficulties faced in disposal of sludge, cost of electricity and membrane, periodical replacement of electrode/membrane and toxicity of effluent leads to limitation of the process [ 11 - 14 ]. (eeer.org)
  • The above image shows the plane spanned by the first two parameters of the 22-parameter model for the CO oxidation on ruthenium dioxide. (fu-berlin.de)
  • Balzani, V. Photochemical molecular devices. (nature.com)
  • EDTA is effectively degraded by the synergistic effect of both Photo Fenton and Sono Fenton process. (scirp.org)
  • To understand the full environmental impact of these compounds, it is important to identify their chemical cycling processes. (escholarship.org)
  • Previously for 9 years, he has been Editor of the "Journal of Hazardous Materials" (Elsevier, Impact Factor 9.038) focusing on elimination of environmental contaminants. (lboro.ac.uk)
  • Although oxidation processes involving ·OH have been in use since late 19th century (such as Fenton's reagent, which was used as an analytical reagent at that time), the utilization of such oxidative species in water treatment did not receive adequate attention until Glaze et al. (wikipedia.org)
  • suggested the possible generation of ·OH "in sufficient quantity to affect water purification" and defined the term "Advanced Oxidation Processes" for the first time in 1987. (wikipedia.org)
  • The electrocatalysts were characterized through a multitude of spectroscopic techniques and were tested for water oxidation study. (ppaspk.org)
  • Supported polyoxometalates as emerging nanohybrid materials for photochemical and photoelectrochemical water splitting. (ppaspk.org)
  • Surfactant-assisted fabrication of prussian blue analogs as bifunctional electrocatalysts for water and hydrazine oxidation. (ppaspk.org)
  • Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 49, no. 4, 2004, pp. 279-85. (unboundmedicine.com)
  • Water Science and Technology : a Journal of the International Association On Water Pollution Research , 49 (4), 279-85. (unboundmedicine.com)
  • Emulsification is a process in which water is entrained by the oil, which changes the oil's physical properties (in particular, it increases viscosity) but not its chemical properties. (eos.org)
  • We never use acids or chemicals of any kind in our extraction process, just distilled water. (optimallyorganic.com)
  • Electro- and photochemical water oxidation on ligand-free Co 3 O 4 nanoparticles with tunable sizes. (mpg.de)
  • Mechanistic study of the phase separation/crystallization process of poly(2-isopropyl-2-oxazoline) in hot water. (mpg.de)
  • He is founder member of the European Union PhD School on Advanced Oxidation Processes and has been nominated "Expert of International Standing" by the Australian Research Council College of Experts. (lboro.ac.uk)
  • Their research was published this summer in the journal Environmental Science and Technology. (newswise.com)
  • Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. (mdpi.com)
  • The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal. (mdpi.com)
  • The presence of EDTA in decontamination wastes can cause complexation of the cations resulting into interferences in their removal by various treatment processes such as chemical precipitation, ion exchange etc. (scirp.org)
  • C. P. Huang, D. Cheng and Z. H. Tang, "Advanced Chemical Oxidation: Its Present Role and Potential Future in Hazardous Waste Treatment," Waste Management, Vol. 13, No. 5-7, 1993, pp. 361-377. (scirp.org)
  • A carbon analyzer was fabricated from commercially available oxidation and detection units. (astm.org)
  • To understand how photocatalysts effect sediment ecological microenvironment in the process of pollution remediation, the impact of typical photocatalyst g-C 3 N 4 (Graphitic carbon nitride) on rivered sediment community polluted by typical antibiotic tetracycline (TC) was investigated. (researchsquare.com)