Enhanced storage stability of aerobic granules seeded with pellets.

Abstract:

:The responses of two different types of aerobic granules to storage, granule A seeded with activated sludge flocs and granule B seeded with pellets (cells), were investigated in this study. After 3-week storage, the surface of granule B remained compact and smooth while obvious crevices were observed on that of granule A. Compared with granule B, granule A had more decrease in biomass concentration, settleability, hydrophobicity, and extracellular polymeric substances (EPS) concentration after the storage. Results indicated that the stability loss of aerobic granules could be related to protein concentration decrease in the TB-EPS fraction and to protein framework disintegration in whole granule. Compared with aerobic granules seeded with activated sludge flocs, those seeded with pellets were more resistant against storage, and thus would have greater potential in practical applications.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Xu HC,He PJ,Wang GZ,Yu GH,Shao LM

doi

10.1016/j.biortech.2010.05.062

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

8031-7

issue

21

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(10)00920-X

journal_volume

101

pub_type

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