A Theoretical and Practical Evaluation of Struvite Control and Recovery
Authors: Sharp, Robert; Vadiveloo, Enrique; Fergen, Robert; Moncholi, Manuel; Pitt, Paul; Wankmuller, David; Latimer, Ron
Source: Water Environment Research, Volume 85, Number 8, August 2013 , pp. 675-686(12)
Publisher: Water Environment Federation
Struvite accumulation is a costly problem in many water resource recovery facilities (WRRFs) that use anaerobic digestion, causing significant labor and equipment costs and potentially impacting facility performance and permit compliance. A comprehensive study was undertaken to evaluate possible solutions to struvite control at two similar Miami‐Dade County, Florida, WRRFs. Alternatives analyzed included periodic cleaning and repair of damaged piping and equipment; optimum ferric salt dosing, use of in situ scaling coupons; and engineered struvite precipitation. The effectiveness and cost of each alternative was evaluated using a newly constructed dynamic process model and a net present worth analysis. Results indicate that nutrient recovery was a potential benefit at both facilities. This study establishes a comprehensive process and specific testing protocols for evaluating struvite control alternatives.
Document Type: Research Article
Publication date: 2013-08-01
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