Hydrogen and Methane Production from Starch Processing Wastewater by Thermophilic Two-Stage Anaerobic Digestion

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• 作者：Peerawat Khongkliang^a ; Prawit Kongjan^b ; Sompong O-Thong^a ; ^c ; ^{sompong.o@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：biohydrogen ; biomethane ; biohythane
• 刊名：Energy Procedia
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：79
• 期：Complete
• 页码：827-832
• 全文大小：345 K

文摘

A two-stage thermophilic fermentation for hydrogen and methane production from wastewater of cassava rice and corn starch at different concentration (5,10 and 15 g/L) was studied. The hydrogen production from cassava starch at concentrations of 5 g/L gave the highest hydrogen yield and followed by cassava starch at a concentration 10 g/L, rice starch at concentrations of 15 g/L. The hydrogen and methane yields from cassava starch processing wastewater by two-stage was 81.5 L H₂ kgCOD^-1 and 310.5 L CH₄ kgCOD^-1, respectively with total energy yield of 13363 kJ kgCOD^-1. Mixed hydrogen and methane (biohythane) production was 9.51 L biogas l^-1 with containing of 55% CH₄, 11% H₂ and 34% CO₂.