Academic literature on the topic '4-Chlorophenol (4-CP)'

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Journal articles on the topic "4-Chlorophenol (4-CP)"

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Artemyanov, Andrey P., та Larisa A. Zemskova. "СHLOROPHENOLS REMOVAL FROM SOLUTION USING ADSORPTION AND OXIDATION IN PRESENCE OF ACTIVATED CARBON FIBER". IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, № 6 (9 липня 2019): 138–44. http://dx.doi.org/10.6060/ivkkt.20196206.5821.

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Adsorption and catalytic decomposition of 3- and 4-chlorophenols in the presence of hydrogen peroxide were studied for estimation of efficiency of the adsorption and catalytic methods for purification of solutions from chlorophenols related to special group of the priority toxic water pollutants. Activated carbon fiber and fiber modified with iron/iron oxide having highly developed surface and porous structure were used as the adsorbents. It was shown that adsorption of chlorophenols on the initial carbon fiber was higher as compared to the modified one and equaled to 309 mg/g for 3-chlorophen
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Chen, Xiurong, Yuan Wang, Qiuyue Li, Yingying Yang, Xiao Wei, Shanshan Wang, Quanlin Lu, and Xiaoli Sun. "Contrast of sludge toxicity variation during treatment of wastewater containing mixed chlorophenols and single chlorophenol." Environmental Engineering Research 26, no. 5 (September 15, 2020): 200335–0. http://dx.doi.org/10.4491/eer.2020.335.

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To address problems associated with the potential toxicity of sludge when it is applied in land utilization, this study investigated the variations by which activated sludge becomes toxic when fed with wastewater containing mixed chlorophenols, and compared variations in sludge toxicity due to inputs of mixed chlorophenols and single chlorophenol groups. In this study, 4-chlorophenol (4-CP), 2,4,6-trichlorophenol (2,4,6-TCP) and mixed chlorophenols which consist of both 4-CP and 2,4,6-TCP were studied in sequencing batch reactors (SBR). The results indicate that in 0-30 d, the toxicity of slud
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Wang, Fen, Yong Wei Ye, Chun An Ma, and Mei Chao Li. "Studies on Electrooxidation Reaction of 4-Chlorophenol on Carbon Electrode by In Situ FTIR." Advanced Materials Research 549 (July 2012): 370–73. http://dx.doi.org/10.4028/www.scientific.net/amr.549.370.

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Electrooxidation of 4-chlorophenol in acidic solution was studied by cyclic voltammetry and in situ FTIR spectroscopy. Compared with platinum (Pt) and glassy carbon (GC) electrodes, carbon electrode exhibited a high electrocatalytic activity during the electrooxidation reaction of 4-chlorophenol. The possible mechanism of 4-chlorophenol on carbon electrode was studies by in situ FTIR. At first, 4-chlorophenol was electrooxidized to 4-chlorophenolic radical, and then to phenoxylic radical. Then, the radical was electrooxidized to hydroquinone, benzoquinone or unsaturated carboxylic acids with p
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Ma, Dehua, Jianjian Wei, Hongbo Zhang, Yukun Zhou, Jinyou Shen, Lianjun Wang, and Peng Zhang. "Acute toxicity evolution during ozonation of mono-chlorophenols and initial identification of highly toxic intermediates." Environmental Science: Processes & Impacts 21, no. 9 (2019): 1509–18. http://dx.doi.org/10.1039/c9em00225a.

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Kuo, W. S., and I. T. Lin. "Biodegradability of chlorophenol wastewater enhanced by solar photo-Fenton process." Water Science and Technology 59, no. 5 (March 1, 2009): 973–78. http://dx.doi.org/10.2166/wst.2009.052.

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The combination of solar irradiation and Fenton reagent have been used to enhance the biodegradability (BOD5/COD) of chlorophenol wastewater, including 2-chlorophenol (2-CP), 4-chlorophenol (4-CP), and 2,4-dichlorophenol (2,4-DCP). Results showed that the solar photo-Fenton process improved significantly the biodegradability of chlorophenol wastewater. Basically, increasing initial H2O2 dosage was much more beneficial for increasing biodegradability of wastewater than increasing initial Fe2 + dosage. Among the conditions studied, the optimum condition of increasing biodegradability of chloroph
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Wu, Shangze, Ka Tang, Jingqi Zhang, Xi Chen, Hanjun Hu, Qing Hu, and Xiao Jin Yang. "Removal of 4-chlorophenol from polluted water by aluminum–iron alloys." Water Science and Technology 80, no. 6 (September 15, 2019): 1099–106. http://dx.doi.org/10.2166/wst.2019.349.

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Abstract Chlorophenols are extremely toxic to the environment and recalcitrant to biological degradation. Herein chemical degradation of 4-chlorophenol (4-CP) from aqueous solutions by zero-valent aluminum (Al), zero-valent iron (Fe), Al and Fe mixtures (Al/Fe mass ratio 90/10, labeled as Al/Fe10) and Al-Fe alloy (Al/Fe mass ratio 90/10, labeled as Al-Fe10) were investigated. No removal was found for 50 mg·L−1 4-CP under anoxic conditions at initial pH 2.5 during a period of 10 hrs while 56%, 83%, 78% and 99% of 4-CP were removed by Fe, Al, Al/Fe10 and Al-Fe10, respectively under aeration cond
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Katayama-Hirayama, Keiko, Shusaku Tobita, and Kimiaki Hirayama. "Biodegradation of phenol and monochlorophenols by yeast Rhodotorula glutinis." Water Science and Technology 30, no. 9 (November 1, 1994): 59–66. http://dx.doi.org/10.2166/wst.1994.0444.

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Biodegradation of phenol and monochlorophenols (CPs) by a yeast strain of Rhodotorula glutinis was examined. The strain completely degraded 5 mM of phenol and utilized phenol as a sole carbon source. The strain may degrade phenol by the “ortho” type of ring fission because muconolactone was observed in the cultured broth. 3-Chlorophenol (3-CP) and 4-chlorophenol (4-CP) were well degraded and stoichiometric release of chloride ion was observed, but degradation of 2-chlorophenol was low with a small quantity of chloride ions. Biodegradability of 3-CP and 4-CP was increased by the addition of phe
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Duan, X. Y., F. Ma, and L. M. Chang. "Electrochemical degradation of 4-chlorophenol in aqueous solution using modified PbO2 anode." Water Science and Technology 66, no. 11 (December 1, 2012): 2468–74. http://dx.doi.org/10.2166/wst.2012.440.

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The electrochemical oxidation of 4-chlorophenol (4-CP) in aqueous solution was studied by electrochemical oxidation using modified PbO2 electrode as anode. The influence of several operating parameters, such as initial 4-CP concentration, applied current density, and supporting electrolyte (Na2SO4) concentration was investigated. Ultraviolet spectroscopy and total organic carbon (TOC) measurements were conducted to study the kinetics of 4-CP electrochemical reaction and the mineralization efficiency of 4-CP. The experimental results showed that the 4-CP degradation always followed a pseudo-fir
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Yang, Chu-Fang, and Chi-Mei Lee. "Enrichment, isolation, and characterization of 4-chlorophenol-degrading bacterium Rhizobium sp. 4-CP-20." Biodegradation 19, no. 3 (July 18, 2007): 329–36. http://dx.doi.org/10.1007/s10532-007-9139-1.

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Kannan, Padmanathan Karthick, Rogerio V. Gelamo, Hywel Morgan, Palaniswamy Suresh, and Chandra Sekhar Rout. "The electrochemical 4-chlorophenol sensing properties of a plasma-treated multilayer graphene modified photolithography patterned platinum electrode." RSC Advances 6, no. 107 (2016): 105920–29. http://dx.doi.org/10.1039/c6ra24136k.

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Dissertations / Theses on the topic "4-Chlorophenol (4-CP)"

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Dixon, William J., and bill dixon@dse vic gov au. "Uncertainty in Aquatic Toxicological Exposure-Effect Models: the Toxicity of 2,4-Dichlorophenoxyacetic Acid and 4-Chlorophenol to Daphnia carinata." RMIT University. Biotechnology and Environmental Biology, 2005. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070119.163720.

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Uncertainty is pervasive in risk assessment. In ecotoxicological risk assessments, it arises from such sources as a lack of data, the simplification and abstraction of complex situations, and ambiguities in assessment endpoints (Burgman 2005; Suter 1993). When evaluating and managing risks, uncertainty needs to be explicitly considered in order to avoid erroneous decisions and to be able to make statements about the confidence that we can place in risk estimates. Although informative, previous approaches to dealing with uncertainty in ecotoxicological modelling have been found to b
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