Using mechanisms of hydrolysis and sorption to reduce siloxanes occurrence in biogas of anaerobic sludge digesters
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- 作者：Georgia Gatidoua ; Olga S. Arvanitia ; Athanasios S. Stasinakisa ; astas@env.aegean.gr" class="auth_mail" title="E-mail the corresponding author ; Nikolaos S. Thomaidisb ; Henrik R. Andersenc
- 关键词：Micropollutants ; Hydrolysis ; Sorption ; Fate ; Sludge treatment
- 刊名：Bioresource Technology
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：221
- 期：Complete
- 页码：205-213
- 全文大小：1655 K
文摘
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Hydrolysis and sorption constants for sludge (Kd) determined for cyclic siloxanes.
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Hydrolysis increased with temperature and decreased with size of cyclic siloxanes.
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Sorption increased with molecule size with LogKd values from 1.46 to 3.84.
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During single-stage anaerobic digestion, >91% of siloxanes end up in biogas.
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Cyclic siloxanes volatilization predicted to be mitigated using a pre-digester.