Sulfide Production in Waste Stabilization Ponds

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Abstract
This investigation deals with the production and release of hydrogen sulfide from waste stabilization ponds, and required design modifications, resulting from increased sulfate or hydrogen sulfide content. A 6-ft deep facultative pond was operated under seven different operating conditions. The experiments were designed to study the relationships between sulfide concentration in the pond and four operating characteristics, namely; detention time, concentration of sulfate ion in the influent, BOD surface load, and sulfate surface load. When detention time and BOD surface loadings were constant, a linear relationship was found to apply between sulfide concentration in the pond and sulfate concentration in the influent. Sulfide concentrations in the pond of about 7 mg per 1 were accompanied by an almost complete disappearance of algae, but the BOD removal rates on a short-term basis were not noticeably affected.

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