Project Abstract

NAU WEF Capstone 2020

Abstract

The Kyrene Water Reclamation Facility (KWRF) was designed to be a scalping plant which pulled a portion of wastewater from the Guadalupe Road Sewer Line. The facility opened in 1991, was expanded in 2006 to handle an average flow of 9 million gallons per day (MGD), and subsequently taken offline in 2010. Before the facility was shut down, the plant had an average capacity of 9 MGD and was able to produce Class A+ effluent. The City of Tempe plans on construction completion and site start-up by the year 2025. This start-up entails a projected average daily flow of 3.0 MGD of Class A+ effluent. Half of this effluent is planned on being used as irrigation for the Ken McDonald Golf Course and for cooling water at Salt River Project’s Kyrene Generating Station while the remaining half is geared towards being available for groundwater recharge.

The retrofit of this facility was designed to be completed in a three-phase expansion. Phase 1 consists of the demolition and reconstruction of all necessary features for the plant to start-up. Phase 2 consists of the implementation and profiting of the biosolids system. Phase 3 consists of the addition of energy efficiency improvements regarding solar panels placed strategically around the facility in order to incorporate the use of green energy. The enclosed report consists of an existing technology assessment, influent and effluent analysis, proposed effluent usage, technology upgrade options, technology downsizing options, economic analysis, and future recommendations regarding the proposed technology improvements.

Constraints

The constraints and limitations associated with this project revolve around the limited space on-sit. The boundaries for the facility cannot be expanded so all renovations must consider that space is limited and that the addition of new structures must still allow for efficient and effective day to day operations. Another constraints/ limitation is the cost associated with the rehabilitation and start-up of this facility.

Site Location

NAU WEF Capstone 2020

The Kyrene Water Reclamation Facility sites on a 9.7-acre plot of land between Rural Road and Kyrene Road on Guadalupe Road in Tempe. Due to the lack of open, usable area around all four sides of the site, there is no open space available for expansion.

Techincal Drawings

NAU WEF Capstone 2020

Constraints

NAU WEF Capstone 2020

Constraints

The constraints and limitations associated with this project revolve around the limited space on-sit. The boundaries for the facility cannot be expanded so all renovations must consider that space is limited and that the addition of new structures must still allow for efficient and effective day to day operations. Another constraints/ limitation is the cost associated with the rehabilitation and start-up of this facility.

Project Tasks

NAU WEF Capstone 2020

Gallery

NAU WEF Capstone 2020

First Mechanical Screens 01-15-2020 / Taken by team

Acid Room Testing 01-15-2020 / Taken by team

Activated Sludge Pipe 01-15-2020 / Taken by team

Biomembrane Roof 01-15-2020 / Taken by team

Biomembrane 01-15-2020 / Taken by team

Chemical Storage Vats 01-15-2020 / Taken by team

Control Room 01-15-2020 / Taken by team

Grit Removal Chamber 01-15-2020 / Taken by team

Small Air Blower 01-15-2020 / Taken by team

Permeater Pump 01-15-2020 / Taken by team

Permeater Pumps 01-15-2020 / Taken by team

View of Biomembranes 01-15-2020 / Taken by team

Water Pumps 01-15-2020 / Taken by team

Staffing

NAU WEF Capstone 2020

The table contains the actual hours used by the team to complete this project. Originally it was estimated that the engineering design would require 956 hours, however the actual design took 1012 hour. This difference was due to having to change the approach of the project from looking at each existing technology station separately to grouping stations into treatments; preliminary, primary, secondary, and advanced. In addition to this, the team had to adapt their approach due to the COVID-19 outbreak. Another difference was that the team originally thought the entire team would have the opportunity to visit the site, however upon client’s request only 3 were able to do so.

Cost of Engineering

NAU WEF Capstone 2020

It includes the calculate estimated and actual personnel costs. In addition to personnel costs the table also contains both the estimated and actual travel and supplies costs. Due to COVID-19 certain expenses were not used such as conference travel cost since the conference was postponed and 3D printing costs since facilities were closed. The cost of engineering design was estimated to be $113,590. The actual engineering design actual cost ended up being $108,55. The difference happened as mentioned before because of the change in approach of the decisions matrices, this required more hours but the roles who handled the problems changed as well. As a result the personnel costs were lower despite the increase in hours. Due to the COVID-19 outbreak other modifications were also necessary. The team was unable to use their 3D printing cost due to the closure in facilities Travel costs were also lower since the the conference has been postponed .

Schedule

NAU WEF Capstone 2020