Rizzuti, Daniel

Daniel completed his bachelor's degree in Chemical Engineering and Bioengineering at McMaster University in Hamilton Ontario, and joined Conestoga-Rovers & Associates as a Junior Engineer in 2011. One merger and almost thirteen years later Daniel continues to enjoy being a part of the municipal wastewater treatment sector with GHD Limited. Having very recently become a father for the first time, most of his available spare time is spent with his wife and new addition. When he does find time to get away, he enjoys spending time outside, playing sports, and generally tinkering with unfinished projects at home.

Titles from this speaker

Dynamic Process Modelling for Aeration Blower Design at the Humber Treatment Plant

Abstract

The City of Toronto initiated a design and construction project in 2022 to replace the existing secondary treatment aeration blowers at the Humber Treatment Plant. A comprehensive review of historical flow and plant operating data was conducted to derive a design-year hourly diurnal flow and load profile (8,760 discrete data points) for input into a commercial wastewater process simulation tool. The output oxygen demands were used to generate process airflows considering varying wastewater temperatures, standard oxygen transfer efficiency based on net airflow per diffuser and diffuser depth, and dynamic alpha based on aeration basin oxygen uptake rates at each time step in the flow and load profile. Statistical and seasonal analyses were applied to the resulting airflow data sets to determine performance guarantee points at varying inlet air conditions for blower equipment preselection

The City of Toronto initiated a capital project in 2022 to replace the existing secondary treatment aeration blowers at the Humber Treatment Plant. A comprehensive approach was implemented to develop the process design basis for the new aeration blowers using dynamic wastewater treatment process modelling to derive process airflows for a one-year hourly diurnal flow and load profile. Resulting airflows were used to determine performance guarantee points at varying inlet air conditions.

SpeakerRizzuti, Daniel

Presentation time

08:30:00

09:00:00

Session time

08:30:00

10:00:00

SessionThe Big Bad Blower: Huffing and Puffing Air Through Your Aeration Basins

Session locationRoom S401d - Level 4

TopicEnergy Production, Conservation, and Management, Facility Operations and Maintenance, Intermediate Level, Municipal Wastewater Treatment Design

Author(s)

Rizzuti, Daniel

Author(s)D. Rizzuti 1; J. Kraemer 2 ; Pretorius 3; T. Young 4; T. Gretarsson 5; D. Pease 6; T. Shen 7; E. Eini 8; V. Szonda 6; D. Rizzuti 1;

Author affiliation(s)GHD Ltd., Waterloo, ON 1; GHD Ltd., Waterloo, ON 2 ; GHD 3; GHD 4; GHD 5; City of Toronto, ON 6; City of Toronto, ON 7; City of Toronto, ON 8; City of Toronto, ON 6; GHD 1;

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2023

DOI10.2175/193864718825159068

Volume / Issue

Content sourceWEFTEC

Word count13

MBRs Are More Cost-effective Than Ever Before

Abstract

A cost model was developed to compare the capital and 20-year lifecycle cost of MBR vs. CAS treatment technology for a greenfield WRRF. Concept designs and cost estimates were developed for six treatment performance scenarios at two design flow capacities: 20 ML/d and 200 ML/d. Compared with a prior version of this model developed in 2012, MBR has become more cost effective compared to CAS in general, most notably for less stringent treatment requirements, while the cost savings of MBR for more stringent treatment requirements has improved, but more modestly. A primary driver of this is the advancements in membrane design, primarily the reduction in air scour energy for membrane cleaning due to new diffuser technology, greater membrane packing density reducing membrane equipment costs and further reducing air scour requirements, decreased membrane cleaning requirements and longer membrane life, and increased use of gravity permeation from membranes under average day operation.

SpeakerYoung, Thor

Presentation time

16:30:00

16:50:00

Session time

15:30:00

17:00:00

SessionAlternative Approaches to Intensify Secondary Treatment

Session locationRoom S404a - Level 4

TopicIntermediate Level, Municipal Wastewater Treatment Design, Nutrients

Author(s)

Young, Thor

Author(s)T. Young 1; J. Kraemer 2 ; D. Rizzuti 3; S. Malatches 4; J. Lim 5; C. Thiemig 5; T. Young 1;

Author affiliation(s)GHD Inc 1; GHD Inc, Waterloo, ON 2 ; GHD Inc, Waterloo, ON 3; GHD Inc, Toronto, ON 4; Veolia Water Technologies & Solutions, Oakville, ON 5; Veolia Water Technologies & Solutions, Oakville, ON 5; GHD Inc, Bowie, MD 1;