Aerobic removal of stigmasterol contained in kraft mill effluents
نویسندگان
چکیده
منابع مشابه
Biological activity of bleached kraft pulp mill effluents before and after activated sludge and ozone treatments.
Eucalyptus bleached kraft pulp production, an important sector of the Brazilian national economy, is responsible for generating large volume, high pollutant load effluents, containing a considerable fraction of recalcitrant organic matter. The objectives of this study were to quantify the biological activity of the effluent from a eucalyptus bleached kraft pulp mill, characterize the nature of ...
متن کاملImproved aerobic biodegradation of abietic acid in ECF bleached kraft mill effluent due to biomass adaptation.
Kraft pulp mill effluents contain elevated concentrations of resin acids, chiefly abietic and dehydroabietic acid, and other lipophilic wood constituents. Resin acids, if not efficiently removed during wastewater treatment, can be responsible for chronic toxicity in aquatic systems. The objective of this study was to investigate the biological removal of abietic acid (AbA) during the treatment ...
متن کاملEffects of Kraft-Mill Effluents on Benthic Macrophyte Assemblages in a Shallow-Bay System (Apalachee Bay, North Florida, USA)
A 14-month study was carried out to determine the impact of kraft-mill effluents on the offshore benthic macrophyte distribution in a shallow north Florida Bay (USA). A polluted river drainage system was compared to an adjoining (unpolluted) one. The affected area was characterized by elevated levels of color and turbidity. Inshore areas associated with high levels of KME were characterized by ...
متن کاملStudies on the Removal of AOX from Bleached Kraft Mill Effluent with Bark Boiler Ash
A laboratory study was carried out to determine the effect of bark boiler ash on AOX concentration in bleach plant effluent. The removal of A O X was found not to be significant at typical daily discharge rates of boiler ash. To remove significant amounts of AOX, extremely large quantities of ash were required. When incremental quantities of ash were added to the bleach plant effluent, an incre...
متن کاملActivated Sludge Treatment of Paper Mill Effluents
Introduction The pulp and paper industry is the second largest industrial water consumer in Europe with a usage of 35 m3/ton paper and a production of 85.2 M tons/year. Its effluents cause considerable damage to the receiving waters if discharged untreated since they have a high biochemical oxygen demand (BOD), chemical oxygen demand (COD) and contain chlorinated compounds, suspended solids (ma...
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ژورنال
عنوان ژورنال: Electronic Journal of Biotechnology
سال: 2009
ISSN: 0717-3458,0717-3458
DOI: 10.2225/vol12-issue2-fulltext-9