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当前位置: 首页 > 文章 > 零价铁驯化污泥对餐厨垃圾厌氧消化产甲烷的影响 湖北农业科学 2016,55 (14) 3618-3621
Position: Home > Articles > The Effect of Zero-valent Iron Acclimated Sludge on Methane Production from Kitchen Wastes by Anaerobic Digestion Hubei Agricultural Sciences 2016,55 (14) 3618-3621

零价铁驯化污泥对餐厨垃圾厌氧消化产甲烷的影响

作  者：
魏桃员;温海东;成家杨
单  位：
武汉科技大学城市建设学院;北京大学深圳研究生院环境与能源学院
关键词：
零价铁;污泥驯化;餐厨垃圾;厌氧消化;半连续式;间歇式
摘  要：
以餐厨垃圾为基质,在中温(37±1)℃条件下进行单相厌氧发酵。污泥驯化过程中以半连续和间歇两种方式投加餐厨垃圾和零价铁混合物(零价铁投加量为餐厨垃圾的0.1%),考察不同驯化方式下的零价铁对餐厨垃圾厌氧消化产甲烷潜能的影响。结果表明,用2.5 g/(L·d)餐厨垃圾+2.5 mg/(L·d)零价铁驯化后的厌氧污泥在2.5 g/(L·d)餐厨垃圾的半连续培养过程中,反应器平均日产甲烷率较对照组提高了17.74%;而以间歇方式培养时,即在用50 g/L餐厨垃圾+50 mg/L零价铁驯化后的厌氧污泥中一次性投加50 g/L餐厨垃圾,其平均日产甲烷率较对照组降低了9.97%。因此,在半连续式驯化方式下,零价铁更有利于提升餐厨垃圾单相厌氧消化的稳定性和产气率。
译  名：
The Effect of Zero-valent Iron Acclimated Sludge on Methane Production from Kitchen Wastes by Anaerobic Digestion
作  者：
WEI Tao-yuan;WEN Hai-dong;CHENG Jia-yang;School of Urban Construction, Wuhan University of Science and Technology;School of Environment and Energy,Shenzhen Graduate School of Peking University;
关键词：
zero-valent iron;;sludge domestication;;kitchen wastes;;anaerobic digestion;;semi-continuous way;;batch way
摘  要：
A single-phase anaerobic digestion fed with kitchen wastes was run under medium temperature(37±1) ℃. A mixture of kitchen wastes and zero-valent iron(zero-valent iron dosage was 0.1% of the kitchen wastes) was added by two different ways,semi-continuous way and batch way,in the process of the sludge domestication. The influence of different acclimatization ways of zero-valent iron on methane potential output from kitchen wastes by anaerobic digestion was investigated.The experimental results showed that average daily production rate of methane increased by 17.74% than control when loading2.5 g /(L·d) kitchen wastes with anaerobic sludge which was domesticated by 2.5 g /(L·d) kitchen wastes and 2.5 mg /(L·d)zero-valent iron in semi-continuous way. But in batch way, namely loading 50 g / L kitchen wastes with anaerobic sludge which was domesticated by 50 g / L kitchen wastes and 50 mg / L zero-valent iron,average daily production rate of methane decreased by 9.97% than control. Therefore, in semi-continuous domesticated way,zero-valent iron is more advantageous to improve the stability of single-phase anaerobic digestion and the conversion rate of kitchen wastes into methane.

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