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1

Numerical study of integrated pollutant control equipment with activated carbon absorbers

100%
Hao X., Chao X., Zhao Y.
Polish Journal of Environmental Studies
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2014
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tom 23
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nr 1
Novel pollutant control equipment, which were called integrated pollutant control equipment, consisted of bag filters and activated carbon (AC) absorbers. The AC absorbers were put forward to absorb the additional pollutants between the old and new emission standards to satisfy Chinese emission standards. The absorbers could be fixed (mobile) bed, annular column, or fluidized bed. The numerical method was employed to simulate the inner flow fields in the integrated equipment. The results show that annular column absorbers can make the flow field more uniform than the others, but its absorption duration has to be discussed. The mobile bed and the annular column absorbers are recommended. The fluidized bed absorber can be applied only if strong heat and mass transfer during absorbtion are needed.
2
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The effects of the use of corrugated cardboards covered with ethylene absorbers on mango fruit quality after short-term storage (Mangifera indica L.)

100%
Warsiki E., Aprilliani F., Iskandar A.
Journal of Horticultural Research
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2019
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tom 27
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nr 2
3
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Removal of chromium by biosorption method (chitosan)

84%
Abatneh Y., Sahu O.
International Letters of Natural Sciences
|
2014
|
tom 03
Discharge of metal containing effluents into water has been a cause of major concern. Traditional treatment methods are proving to be ineffective and expensive. Chitosan was studied as a potential biosorbent due to its positive charge and relatively low cost. The study involves evaluating the metal binding performance of chitosan in a Polymer Enhanced Diafiltration (PEDF) system which uses an ultra filtration membrane to retain the chitosan which, in turn, binds the metal, thereby preventing passage into the permeate stream. Conditions for binding such as pH, concentration of polymer and chromium were studied. Optimal performance was obtained when the system was operated at pH values lower than the pKa of chitosan i.e. 6.3. Using 6 g/L chitosan at pH 4.0, chromium concentration was reduced to less than 1mg/L from a feed concentration of 20 mg/L. Equilibrium dialysis experiments were done to study the kinetics of binding and the uptake of metal per gram of polymer. Rheological measurements demonstrated that in the presence of 1-100 mM chromate, chitosan was found to be slightly shear thickening at low concentrations such as 4 g/L and 6 g/L whereas it was slightly shear thinning at higher concentrations like 12 g/L and 20 g/L This suggests that neutralization of chromium anions is due to the interaction of multiple chitosan molecules. This result is consistent with the relatively stiff nature of the polysaccharide. Overall, this study suggests that some modification of the native polymer would be required to improve uptake and make it an industrially workable process.
4

Żywice mocznikowo-formaldehydowe i melaminowo-formaldehydowe o ograniczonej emisji formaldehydu

67%
Jankowski P., Kijowska D., Legocka I., Wierzbicka E., Danecki L., Czapiewski G.
Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie
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2020
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tom 61
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nr 1-2
5

Projekty Rozwojowe dla przemysłu płytowego realizowane przez OBR-PPD sp. z o. o. w Czarnej Wodzie

67%
Danecki L.
Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie
|
2017
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tom 58
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nr 1-2
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Soil detoxication by the means of activated carbon in breeding process

67%
Spiridonov J. J., Mukhin V. M., Karpachev V. V., Gorskov V. I., Gorshkova E. K., Voropaeva N. L., Shachnev N. V., Figovsky O. L.
International Letters of Natural Sciences
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2017
|
tom 62
The paper describes results of vegetative tests of activated carbon as a detoxiсant of herbicide remains in soil on eight varieties of summer rapeseed. The tests were performed with the purpose to align soil fertility on different breeding and test sites. The research is based on attempts to apply coal absorbent as a means of soil detoxication to neutralize herbicides remains in the process of oilseed brassica crops breeding. Several summer rapeseed varieties were used as research objects. Similar approaches have not encountered in literature references available.
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