Anaerobic digestion is quickly becoming the choice technology for sewage sludge treatment at wastewater treatment plants, as the methane rich biogas produced is a valuable resource which can be used to generate electricity. In the oxygen restricted environment, a natural by‐product of the anaerobic process is hydrogen sulfide, a harmful contaminant. Also present in the biogas are organosilicons, or siloxanes, which originate from cosmetic products. Efficient removal of these compounds is essential to support economic recovery and use of the biogas. This paper discusses various technologies and the benefits and economics of biogas conditioning.
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