[Treatment of combined effluents from bleached kraft pulp and paper manufacturing - a comparison of different biological systems in the laboratory]

acide gras activated sludge aerobiose aerobiosis aguas residuales anaerobiose anaerobiosis azote biodegradation blanchissement blanqueadura bleaching chemical pulp cod fatty acids fosforo heavy metals industria de la pasta y el papel lodos activados lutte antipollution metales pesados nitrogen phenolic compounds phosphore phosphorus pollution control pulp and paper industry suecia sweden thermophilic microorganisms tratamiento de aguas residuales wastewater wastewater treatment