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Development and Application of Biological H2S Scrubbers for Treatment of Digester Gas

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As part of the California Energy Group (Former California Energy Commission) Public Interest Energy Research (PIER) Program, biological hydrogen sulfide (H2S) biogas cleaning was evaluated. The biological H2S scrubber uses bacteria to oxidize the sulfide to produce both elementary sulfur and sulfuric acid. This system was tested at the Inland Empire Utilities Agency's Regional Plant 1 (IEUA RP-1) in Ontario, California.

The biological H2S scrubber demonstrated good performance throughout the testing phase. Based on the field measurements, The system required only a few days for startup and acclamation. The scrubber, under normal operating conditions, maintained treated biogas H2S levels below the target level of 40 ppmv.

Document Type: Research Article


Publication date: January 1, 2006

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