Hydrogen generation from mixed substrate of apple waste and excess sludge by anaerobic digestion
A batch experiment for hydrogen generation from apple waste and excess sludge by anaerobic digestion was conducted at the mesophilic temperature of 37℃ and the initial pH of 8.0.The Results showed that hydrogen yields of 11.5 mL/gVS and 8.6 mL/gVS was obtained when apple waste and excess sludge were single-digestion,respectively.The hydrogen yield of apple waste and excess sludge co-digestion reached 16.9 mL/gVS,which was increased by 68.16% compared to the calculated value.The pH value of excess sludge was the highest,while the SCOD of apple waste was the highest.The pH value and SCOD of co-digestion were between the two single-digestion groups due to the balanced nutrients of the two organic wastes and the buffer capacity of the reactor system.It indicated that co-digestion was not just the simple sum of the two organic matters,but also had a synergic effect during the co-digestion process,the hydrogen production efficiency of co-digestion was enhanced.In addition,the dehydrogenase activity of co-digestion was significantly higher than that of apple waste during the whole process.The dehydrogenase activity of co-digestion maintained at 340TFμg/(mL·h),with the maximum of 384TFμg/(mL·h).
Apple waste excess sludge anaerobic digestion hydrogen dehydrogenase activity
Ling Bai Meijuan Yu Mingxing Zhao Feiyue Song Wenquan Ruan
School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
177-180
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）