NDLI: The Effect of Short-Term Shock Load on the Performance of SAFs with Different Media

Content Provider	IEEE Xplore Digital Library
Author	Hu Bibo Yang Chun Wheatley, A.
Copyright Year	2010
Abstract	This study was carried out to apply short-term shock load to investigate and compare microbial responses and interactions of submerged aerated filters (SAFs) with wool and Kaldnes. It was presented that the results from a transient hydraulic shock of reducing the hydraulic retention time (HRT) by half to a HRT of 1.0 hours for 2.0 hours and followed by a return to the steady state. At the beginning of shock load, the effluent concentration of TOC, SS, Turbidity and ammonia increased rapidly. SAFs quickly returned to normal operation 6.0-8.0 hours after the hydraulic shock and were then stable. The wool reactor had slightly more resistance than the Kaldnes, which indicated wool had better filter ability, biomass kinetics and hydrodynamic turbulent mass transfer avoiding nutrient limitation. The rapid recovery suggested the reactor had less sensitive to certain disturbances since some mixing and dilution of incoming wastewater may take place inside SAFs and the biofilm of SAFs protects the embedded bacteria from potentially harmful environmental conditions.
Starting Page	1
Ending Page	4
File Size	249245
Page Count	4
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5517571
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filters Electric shock Effluents Hydrodynamics Steady-state Biomass Kinetic theory Wool Inductors Immune system
Content Type	Text
Resource Type	Article

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