Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Bogdana Koumanova"'
Publikováno v:
Macedonian Journal of Chemistry and Chemical Engineering, Vol 31, Iss 1, Pp 101-114 (2012)
The adsorption behavior of 2-nitrophenol (2-NP) and 2,4-dinitrophenol (2,4-DNP) on expanded perlite (EP) at equilibrium and kinetic conditions was investigated. The experimental equilibrium data were interpreted by Langmuir, Freundlich, Redlich–Pet
Externí odkaz:
https://doaj.org/article/710cbb986f7e46cb9178840e1c0fb395
Publikováno v:
Macedonian Journal of Chemistry and Chemical Engineering, Vol 27, Iss 2, Pp 123-132 (2008)
The adsorption of two substituted nitrophenols, namely 4-nitrophenol (4-NP) and 2,4-dinitrophenol (2,4-DNP), from aqueous solutions onto perfil was studied using a fixed bed column. The theoretical solid diffusion control (SDC) model describing singl
Externí odkaz:
https://doaj.org/article/5744534ec1124b748070f4e9f92fa9cf
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
The study assessed the applicability of Rhizopus oryzae dead fungi as a biosorbent medium for p-nitrophenol (p-NP) removal from aqueous phase. The extent of biosorption was measured through five equilibrium sorption isotherms represented by the Langm
Externí odkaz:
https://doaj.org/article/4c962e0096ad451fb4ef77aa09fa12ab
Autor:
Silviya Lavrova, Bogdana Koumanova
Publikováno v:
Environment, Earth and Ecology. 1:94-101
Publikováno v:
AIChE Journal
AIChE Journal, Wiley, 2017, 63 (2), pp.669-679. ⟨10.1002/aic.15369⟩
AIChE Journal, Wiley, 2017, 63 (2), pp.669-679. ⟨10.1002/aic.15369⟩
Paracetamol is commonly found in wastewaters, as a consequence of its high consumption and incomplete elimination by conventional treatments. Homogenous (photo-)Fenton oxidation has proved efficient for its remediation, but it suffers from uneasy dis
Autor:
Yaneva, Zvezdelina Lyubenova1,2, Koumanova, Bogdana Koumanova1, Georgieva, Nedyalka Valkanova2 nvgeorgieva@vmf.uni-sz.bg
Publikováno v:
Journal of Chemistry. 2013, p1-10. 10p.
Publikováno v:
Bioresource Technology. 137:409-413
Acid wastewaters contaminated with Fe - 1000 mg L(-1) and Cu - 100 mg L(-1) were remediated by microbial sulfate-reduction at high organic loading (theoretical TOC/SO4(2-) ratio 1.1) in a laboratory installation. The installation design includes a fi
Publikováno v:
Asia-Pacific Journal of Chemical Engineering. 5:869-881
Alcohols are important high volatility industrial chemicals, and when present in low concentrations require highly selective separation techniques. This paper investigates the kinetics of the adsorption of water, methanol, and butanol vapors on natur
Publikováno v:
Industrial & Engineering Chemistry Research. 44:2281-2287
The potential of technical hydrolysis lignin (THL), a low-cost and abundantly available material, to act as an adsorbent of 2-nitrophenol (2-NP) has been investigated. The extent of mononitrophenol uptake was determined conducting parallel single-com
Publikováno v:
Journal of Chemical Technology & Biotechnology. 78:582-587
The adsorption of para-chlorophenol onto an active carbon made from waste apricot stones has been studied. The batch kinetic adsorption processes have been measured for a range of system variables including agitation rate, initial concentration of pa