Although the rates of the degradation of 5-methylresorcinol and resorcinol were lower compared with those of phenol, the obtained results showed that the studied biomass was able to oxidize the resorcinolic compound.
Phenol, p-cresol, o-cresol, resorcinol, 5-methylresorcinol and 2,4-, 2,6-, 3,4- and 3,5-dimethylphenol were used as single substrates in the experiments.
4 kg per ton of processed oil shale, that of 5-methylresorcinol
5-methylresorcinol with a reported purity of > 99% was provided by AS VKG, Estonia and 2,6-dihydroxy-4-methylbenzoic acid, with a purity of > 99%, was provided by Carboshale OU, Estonia.
A method for preparing metal-doped carbon aerogels from oil shale processing by-products 5-methylresorcinol and 2,6-dihydroxy-4-methylbezoic acid was developed.
and formaldehyde aquagels were synthesized using double-catalysed polycondensation.
Gels were made from 5-methylresorcinol
(MR) and formaldehyde (F) in water (W) and then dried using supercritical C[O.
of purity [greater than or equal to] 96% was obtained from Carboshale, Estonia; Honeyol[TM] which is a product of Viru Keemia Grupp, Estonia, was obtained from Department of Oil Shale Technology of Tallinn University of Technology; the catalysts were [Na.
Musso and co-workers carried out basic and experimental studies on phenol oxidation reactions, including autoxidation of 5-methylresorcinol
and 2,5-dimethylresorcinol in ammonia and potassium hydroxide [16,17].
Analogically to the complex with 5-methylresorcinol
, the complex formed is assumed to dissociate as a weak acid as follows:
We have experience with the co-condensation of some methylolxylenols and dimethylolcresols with resorcinol and 5-methylresorcinol
The aim of this study was to investigate the aerobic biodegradability of phenolic compounds characteristic to the oil-shale industry wastewaters--phenol, resorcinol and 5-methylresorcinol
as both single and mixed substrates at different concentrations by the activated sludge of the Kohtla-Jarve WWTP and to obtain more information how these compounds influence each other's biodegradation.