Effect of condensate of food waste (CFW) on nutrient removal and behaviours of intercellular materials in a vertical submerged membrane bioreactor (VSMBR)

The main objective of this study was to investigate the effect of condensate of food waste (CFW) on nutrient removal in a pilot-scale vertical submerged membrane bioreactor (VSMBR) treating municipal wastewater having total-chemical oxygen demand to total-nitrogen ratio (T-COD/T-N) of 5.5. In this r...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 2007, Vol.98 (2), p.373-379
Main Authors: Chae, S.R., Shin, H.S.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Bioreactors
Biotechnology
Carbon - metabolism
Condensate of food waste
Enhanced biological phosphorus removal
Food
Food industries
Fundamental and applied biological sciences. Psychology
Methods. Procedures. Technologies
Nutrient removal
Poly-hydroxyalkanoates
Refuse Disposal - methods
Use and upgrading of agricultural and food by-products. Biotechnology
Various methods and equipments
Vertical submerged membrane bioreactor
Waste Disposal, Fluid - methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The main objective of this study was to investigate the effect of condensate of food waste (CFW) on nutrient removal in a pilot-scale vertical submerged membrane bioreactor (VSMBR) treating municipal wastewater having total-chemical oxygen demand to total-nitrogen ratio (T-COD/T-N) of 5.5. In this reactor, the average removal efficiencies of T-COD, T-N, and T-P (total-phosphorus) were 96%, 74%, and 78%, respectively at 8-h hydraulic retention time (HRT), 60-day sludge retention time (SRT), and internal recycle rate of 400%. As the CFW was supplemented with 0.86% of the influent flow rate, the T-N and T-P removal efficiencies increased to 81% and 91%, respectively. Accordingly, in batch tests, it was concluded that the supply of CFW improved enhanced biological phosphorus removal (EBPR) activity of microorganisms resulting in improvement of nutrient removal efficiency. Under this condition, several kinds of poly-hydroxyalkanoates (PHAs) were detected inside the cells.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2005.12.019