Aerobic removal of stigmasterol contained in kraft mill effluents
Kraft mill effluent, due to its organic matter content and acute toxicity, must be treated. A primary treatment followed by a secondary treatment is the most common system. Aerated lagoon is also considered an effective biological treatment, although this technology has some drawbacks related with o...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Pontificia Universidad Católica de Valparaíso
2009
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200001 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0717-34582009000200001 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0717-345820090002000012009-10-20Aerobic removal of stigmasterol contained in kraft mill effluentsChamorro,SoledadXavier,Claudia ReginaHernández,VictorBecerra,JoséVidal,Gladys aerated lagoon kraft mill effluent stigmasterol Kraft mill effluent, due to its organic matter content and acute toxicity, must be treated. A primary treatment followed by a secondary treatment is the most common system. Aerated lagoon is also considered an effective biological treatment, although this technology has some drawbacks related with operation parameters and land extension space. Moreover, the recovery efficiency for micropollutants contained in kraft mill effluent is questioned due to the anoxic zone in the system. The goal of this work is to evaluate the performance of the aerated lagoon to remove stigmasterol contained in kraft mill effluents. Kraft mill effluent was treated by an aerated lagoon (AL), which was operated with three different stigmasterol load rates (SLR = 0.2, 0.6 and 1.1 mg/L x d) and a hydraulic retention time of 1 day. The AL’s maximum Chemical Oxygen Demand (COD) removal was 65%, whereas the Biological Oxygen Demand (BOD5) was around 95%. The removal efficiency of stigmasterol removal was 96% when SLR 1.1 mg/L x d, although an accumulation of stigmasterol was detected for lower SLR.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.12 n.2 20092009-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200001en10.4067/S0717-34582009000200001 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
aerated lagoon kraft mill effluent stigmasterol |
| spellingShingle |
aerated lagoon kraft mill effluent stigmasterol Chamorro,Soledad Xavier,Claudia Regina Hernández,Victor Becerra,José Vidal,Gladys Aerobic removal of stigmasterol contained in kraft mill effluents |
| description |
Kraft mill effluent, due to its organic matter content and acute toxicity, must be treated. A primary treatment followed by a secondary treatment is the most common system. Aerated lagoon is also considered an effective biological treatment, although this technology has some drawbacks related with operation parameters and land extension space. Moreover, the recovery efficiency for micropollutants contained in kraft mill effluent is questioned due to the anoxic zone in the system. The goal of this work is to evaluate the performance of the aerated lagoon to remove stigmasterol contained in kraft mill effluents. Kraft mill effluent was treated by an aerated lagoon (AL), which was operated with three different stigmasterol load rates (SLR = 0.2, 0.6 and 1.1 mg/L x d) and a hydraulic retention time of 1 day. The AL’s maximum Chemical Oxygen Demand (COD) removal was 65%, whereas the Biological Oxygen Demand (BOD5) was around 95%. The removal efficiency of stigmasterol removal was 96% when SLR 1.1 mg/L x d, although an accumulation of stigmasterol was detected for lower SLR. |
| author |
Chamorro,Soledad Xavier,Claudia Regina Hernández,Victor Becerra,José Vidal,Gladys |
| author_facet |
Chamorro,Soledad Xavier,Claudia Regina Hernández,Victor Becerra,José Vidal,Gladys |
| author_sort |
Chamorro,Soledad |
| title |
Aerobic removal of stigmasterol contained in kraft mill effluents |
| title_short |
Aerobic removal of stigmasterol contained in kraft mill effluents |
| title_full |
Aerobic removal of stigmasterol contained in kraft mill effluents |
| title_fullStr |
Aerobic removal of stigmasterol contained in kraft mill effluents |
| title_full_unstemmed |
Aerobic removal of stigmasterol contained in kraft mill effluents |
| title_sort |
aerobic removal of stigmasterol contained in kraft mill effluents |
| publisher |
Pontificia Universidad Católica de Valparaíso |
| publishDate |
2009 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200001 |
| work_keys_str_mv |
AT chamorrosoledad aerobicremovalofstigmasterolcontainedinkraftmilleffluents AT xavierclaudiaregina aerobicremovalofstigmasterolcontainedinkraftmilleffluents AT hernandezvictor aerobicremovalofstigmasterolcontainedinkraftmilleffluents AT becerrajose aerobicremovalofstigmasterolcontainedinkraftmilleffluents AT vidalgladys aerobicremovalofstigmasterolcontainedinkraftmilleffluents |
| _version_ |
1718441796349984768 |