Galvagno, Giampiero

Presented at WEFTEC 2023.

Titles from this speaker

Description: Doing More with Less: Refining the Westbank Biological Nutrient Removal Process to...

Doing More with Less: Refining the Westbank Biological Nutrient Removal Process to Achieve Aerobic Granular Sludge While Enhancing Performance

Abstract

AECOM partnered with the City of Penticton (Canada) to investigate various process modifications to its existing biological nutrient removal (BNR) process to promote the growth and retention of granular sludge. The continuous flow AGS demonstration pilot utilizes two completely independent trains, operated side-by-side. The pilot train configuration was modified to include an inDENSE hydrocyclone skid to selectively waste floccular biomass. The pilot train transitioned to a hybrid-floccular sludge, achieving an average SVI-30 of 70 -75 mL/g. Based on the particle size distribution analysis the average particle size in the pilot train was 210 µm vs 86 µm in the control train. Assuming the threshold size for granules is 200 µm, the granules composed approximately 12% in the control train vs 44% in the pilot train. The pilot also indicated that operating the last aerobic cells at low DO to maximize SND significantly reduced effluent TN by reducing nitrate concentration.

This paper was presented at WEFTEC 2023 in Chicago, IL.

SpeakerGalvagno, Giampiero

Presentation time

13:30:00

13:50:00

Session time

13:30:00

15:00:00

SessionApplying Hydrocyclones for Densification

Session locationRoom S501a - Level 5

TopicFacility Operations and Maintenance, Intermediate Level, Municipal Wastewater Treatment Design, Nutrients, Research and Innovation

Author(s)

S. Murthy

Author(s)S. Murthy 1; S. Murthy 1 ; G. Galvagno 2; J. Acio 2; M. Kowalski 3; S. Henderson 4; G. Marsden 5; J. Mertz 5; P. Sampara 6; K. Sears 7; B.M. Stinson 8; R.M. Ziels 9; M. Kowalski 3;

Author affiliation(s)NEWhub Water Corporation 1; NEWhub Water Corporation 1 ; AECOM Canada, Kelowna, BC 2; AECOM 2; AECOM 3; City of Penticton 4; City of Penticton 5; City of Penticton 5; University of British Columbia 6; AECOM 7; AECOM 8; University of British Columbia 9; AECOM 3;

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2023

DOI10.2175/193864718825159207

Volume / Issue

Content sourceWEFTEC

Word count20