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WASTEWATER SOLUTIONS

• Wastewater Solutions Studies
• Facility Planning Studies
• Treatment Facilities Design
• Existing Facilities Evaluations
• Performance Enhancement Design
• Package System Implementation
• Odor Control Solutions

SAMPLE PROJECTS:

Hassayampa Utility Company Hassayampa Ranch WRF Design
The Hassayampa Utility Company Hassayampa Ranch WRF is a treatment facility being planned to serve a new development area near Buckeye, AZ.  The first phase of construction will provide 0.5 MGD of treatment capacity with provisions for expansion to an ultimate capacity of 3 MGD.  MES is the design engineer for this project that includes a Sequencing Batch Reactor (SBR) facility with screening, nitrification/denitrification, filtration, UV disinfection, aerobic digestion and mechanical dewatering.  The Hassayampa Ranch WRF will produce Class A+ reclaimed water for beneficial reuses including turf irrigation and aquifer recharge.  The scope of this project included completing the design of the 0.5 MGD SBR wastewater facility and obtaining the Approval to Construct (ATC) from Maricopa County Environmental Services Department (MCESD).

Algonquin Water Services: LPSCO Palm Valley WRF Upgrade
Litchfield Park is a planned residential community, two miles north of I-10 and 16 miles west of central Phoenix located in Maricopa County.  The Litchfield Park Service Company (LPSCO), an affiliate company of Algonquin Water, provides potable water and wastewater treatment services to residents of Litchfield Park and Goodyear.  LPSCO owns and operates the Palm Valley Water Reclamation Facility (WRF) which is a 4.2-mgd wastewater treatment plant that produces high quality recycled water (class A+).  The recycled water is used to irrigate the golf courses and greenbelt areas within the service area.

The Palm Valley WRF was designed to be a completely contained facility designed to look like a high end office complex with lush desert landscaping along the street side of the facility.  Even though the facility had an award winning façade, the WRF was plagued with fugitive odors.  Complaints from nearby residents began within months of the plant start up.  After several studies and upgrades of the odor control system, LPSCO was directed by the Arizona Corporation Commission, the state regulatory agency to fix the odor problem by December 31, 2007. In March of 2007, LPSCO selected MES to design process performance enhancements and redesign the odor control system to solve the odor problems that had been plaguing the plant since its start-up in time to meet the ACC deadline. 

MES worked closely with LPSCO’s CM at Risk Contractor and Aerisa Air Technologies to design modifications to the plant’s wet scrubber and implement a full scale pilot of the Aerisa ion-exchange odor control system for the Headworks and Solids Handling buildings.  The pilot unit was installed and fully functional one week ahead of the deadline.  The new ion-exchange odor control equipment completely eliminated odors within the Headworks and Solids Handling building stopping the release of fugitive odors.

MES design services also implemented other enhancements to improve the process reliability including adding new influent screens and UV disinfection equipment, installing a temporary centrifuge to augment the existing unit, converting the sludge storage unit into a fourth SBR, upgrading and replacing the process electrical system, and implementing of a new process SCADA control system.

Global Water:  Signature Water Recycling Factory Study (Phase 1)
Global Water Resources retained McBride Engineering Solutions, Inc. (MES) to provide engineering services in the development of a basis of design for a “Signature” Water Recycling Factory (WRF).  The goal of the project was to select major equipment that is efficient and cost-effective and develop a general facility phasing plan and design documents that can be used as the basis of design and construction of all their future wastewater treatment facilities.   Phase 1 of this project required that MES develop general process flow diagrams for each phase of the facility from 50,000 gpd to 10 MGD.  MES then identified and evaluated options for tertiary treatment including filtration and disinfection based on criteria including equipment footprint, operability, reliability, modularity, and life-cycle cost.  

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