QUICK FIX ODOR CONTROL AT THE PIMA COUNTY REGIONAL WASTEWATER RECLAMATION DEPARTMENT ROGER ROAD WWTP

Pima County Regional Wastewater Reclamation Department
Pima County, Arizona

Pima County Regional Wastewater Reclamation Department (PCRWRD) manages a sewer
conveyance system that includes over 3,300 miles of sewer pipes, 66,000 manholes and 29 active
lift stations. PCRWRD operates two major wastewater treatment facilities within the Tucson
metropolitan area, the Roger Road Wastewater Treatment Plant (Roger Road) and the Ina Road
Water Pollution Control Facility (Ina Road). Odor abatement and control across the entire system
is a major issue facing the department as many odiferous compounds, primarily hydrogen
sulfide, are generated from the conveyance and treatment of sewage.
PCRWRD has initiated a System-wide Odor Control Planning effort to develop a holistic,
fiscally sound and implementable Plan to mitigate county wide odor problems. The planning
effort was structured to identify both near term and long term solutions for the odor emissions.
The near term solutions are those that can be readily implemented, either by staff or by Job Order
Contract. The near term solutions are intended to give maximum immediate relief from nuisance
odor emissions at minimum cost.
The long term solutions are those that require significant capital investment, integration and
coordination with other long term facility expansions or improvements and which require
significant design lead time and construction procurement activities.
The odor emissions from the Roger Road WWTP have lead to numerous odor complaints from
residents and businesses in the area surrounding the plant for quite some time. Due to the
severity of the nuisance odor emissions, PCRWRD determined that a “Quick Fix” for odor
emissions from the Roger Road WWTP was a must.
Therefore, early efforts in the System-wide Odor Control Plan focused on measures to identify
and mitigate the most sever sources of odor emissions from the Roger Road WWTP.
This paper will focus on aspects of developing a “Quick Fix” for Odor Control at the RR
WWTP, including the following:
● Development of baseline odor sources and emission characterizations
● Development of a “Quick Fix” odor control strategy and an implementation plan
● Cooperative effort between PCRWRD, Consultant Team and JOC Contractor to
implement the “Quick Fix” plan
● Results of the “Quick Fix” Odor Control at the PCRWRD Roger Road WWTP

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Posted: May 3rd, 2011 | Filed under: 500K-1M, Waste Water Treatment | Tags: Improved Odor Control Plan, Maintaining Good Neighbor Relations, Reduced Hydrogen Sulfide, Reduced Odors | No Comments »

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