Waste cleaning waste: Ammonia abatement in bio-waste anaerobic digestion by soluble substances isolated from bio-waste compost

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• 作者：Matteo Francavilla^a ; ^{matteo.francavilla@unifg.it" class="auth_mail" title="E-mail the corresponding author} ; Luciano Beneduce^a ; ^{lucaino.beneduce@unifg.it" class="auth_mail" title="E-mail the corresponding author} ; Giuseppe Gatta^a ; ^{giuseppe.gatta@unifg.it" class="auth_mail" title="E-mail the corresponding author} ; Enzo Montoneri^a ; ^{enzo.montoneri@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Massimo Monteleone^a ; ^{massimo.monteleone@unifg.it" class="auth_mail" title="E-mail the corresponding author} ; Davide Mainero^b ; ^{davide.mainero@aceapinerolese.it" class="auth_mail" title="E-mail the corresponding author}
• 关键词：SBO ; soluble biobased substances obtained from municipal bio-wastes ; CV ; soluble substances obtained from public and private gardening all vegetable wastes
• 刊名：Biochemical Engineering Journal
• 出版年：2016
• 出版时间：15 December 2016
• 年：2016
• 卷：116
• 期：Complete
• 页码：75-84
• 全文大小：1393 K

文摘

Soluble bio-based substances are isolated from the alkaline hydrolysate of composted urban gardening wastes. These substances are capable to reduce the ammonia content in municipal biowaste anaerobic digestates. The present work reports the anaerobic fermentation of the organic humid fraction of solid municipal biowaste carried out in the presence the above soluble substances, added at 0.05–0.2% concentration in fermentation slurry. The results show that the ammonia in the digestate obtained under these conditions is 70–100% lower than the ammonia present in the digestate of control fermentation without addition of soluble biobased substances. Operational cost savings (up to 1.1 € per abated ammonia N kg) may result for the anaerobic digestion performed in the presence of the above soluble susbtances, compared to conventional technology for the digestate secondary treatment.