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Mostrando ítems 1-10 de 2522
Hexavalent chromium removal using aerobic activated sludge batch systems added with powdered activated carbon
(Water Research Commission, 2009-12)
The addition of powdered activated carbon (PAC) has been proposed as a suitable technique to protect activated sludge against toxic wastewaters. However, the literature data describing the combined effect of PAC addition ...
Humic fractions of forest, pasture and maize crop soils resulting from microbial activity
(Sociedade Brasileira de Microbiologia, 2014-09-01)
Humic substances result from the degradation of biopolymers of organic residues in the soil due to microbial activity. The objective of this study was to evaluate the influence of three different ecosystems: forest, pasture ...
Multicomponent click synthesis of potentially biologically active triazoles catalysed by copper nanoparticles on activated carbon in water
(Pergamon-Elsevier Science Ltd, 2012-01)
A variety of potentially biologically active 1,2,3-triazoles, derived from (-)-menthol, lactic acid, D-glucose, oestrone, cholesterol, and phenacetin, have been synthesised through the multicomponent alkyne-azide 1,3-dipolar ...
Greenhouse Gas (CO2 AND N2O) Emissions from Soils: A Review
(Instituto de Investigaciones Agropecuarias, INIA, 2010)
Remoção de diclofenaco, ibuprofeno, naproxeno e paracetamol em filtro ecológico seguido por filtro de carvão granular biologicamente ativadoRemoval of diclofenac, ibuprofen, naproxen, and paracetamol in ecological filter followed by granular carbon filter biologically active
(ABES, 2012)
O filtro ecológico representa uma promissora tecnologia de tratamento, em razão desta não necessitar da aplicação de produtos químicos, além de sua constatada eficiência. Nele, estabelece-se entre os seres vivos a relação ...
Synthesis and Properties of New Cleavable Cationic Surfactants Containing Carbonate Groups
(Springer Heidelberg, 2021-05)
A novel series of cleavable alkyltrimethylammonium surfactants with different hydrocarbon chain lengths (C8–16) were synthesized. A carbonate break site inserted between the polar head and the hydrocarbon chain makes these ...