Repositorio
Institucional

Jeison, David

Ortega-Bravo, Juan Carlos

Pavez, Javier

Hidalgo, Victor

Reyes-Caniupan, Isaac

Torres-Aravena, Alvaro

Biogas Production from Concentrated Municipal Sewage by Forward Osmosis, Micro and Ultrafiltration

MDPI

SUSTAINABILITY

en

Direct application of anaerobic digestion to sewage treatment is normally only possible under tropical weather conditions. This is the result of its diluted nature and temperatures far from those suitable for anaerobic conversion of organic matter. Then, direct application of anaerobic treatment to sewage would require changing temperature, concentration, or both. Modification of sewage temperature would require much more energy than contained in the organic matter. Then, the feasible alternative seems to be the application of a pre-concentration step that may be accomplished by membrane filtration. This research studied the pre-concentration of municipal sewage as a potential strategy to enable the direct anaerobic conversion of organic matter. Three different membrane processes were tested: microfiltration, ultrafiltration and forward osmosis. The methane potential of the concentrates was determined. Results show that biogas production from the FO-concentrate was higher, most likely because of a higher rejection. However, salt increase due to rejection and reverse flux of ions from the draw solution may affect anaerobic digestion performance.

artículo original

This research was funded by FONDECYT-ANID, grant number 1150982 and 3160398, CRHIAM CENTER grant number 15130015 (ANID/FONDAP).

Esta investigación fue financiada por FONDECYT-ANID, beca número 1150982 y 3160398, beca CENTRO CRHIAM número 15130015 (ANID/FONDAP).

10.3390/su14052629

PDF

sewage

forward osmosis

microfiltration

ultrafiltration

concentration

biogas

WASTE-WATER TREATMENT

MEMBRANE BIOREACTOR

RECOVERY

COAGULATION

PERFORMANCE

FILTRATION

PRECONCENTRATION

DESALINATION

PRETREATMENT

Ciencia y tecnología verdes y sostenibles

Ciencias Ambientales

Estudios ambientales

aguas residuales

ósmosis directa

microfiltración

ultrafiltración

concentración

biogás

TRATAMIENTO DE AGUAS RESIDUALES

BIOREACTOR DE MEMBRANA

RECUPERACIÓN

COAGULACIÓN

RENDIMIENTO

FILTRACIÓN

PRECONCENTRACIÓN

DESALACIÓN

PRETRATAMIENTO

Ingeniería Ambiental y Geológica

Ingeniería Química

Biotecnología Ambiental

Biogas Production from Concentrated Municipal Sewage by Forward Osmosis, Micro and Ultrafiltration

artículo original

version publicada

CC BY 4.0

CC BY 4.0

acceso abierto

acceso abierto

ANID-FONDAP 15130015

ANID-FONDECYT 1150982

ANID-FONDECYT 3160398

ANID FONDAP 15130015

ANID FONDECYT 1150982

ANID FONDECYT 3160398

WOS:000770989600001