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Quick Fix Odor Control at the Pima County Regional Wastewater Reclamation Department Roger Road WWTP

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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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Document Type: Research Article

Publication date: 2008-01-01

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