Rapid and high yield biogas production from Jatropha seed cake by co-digestion with bagasse and addition of Fe2+
Rapid and high yield biogas production from Jatropha seed cake by co-digestion with bagasse and addition of Fe2+
复制标题
通过与甘蔗渣共消化并添加 Fe2 从麻风树籽饼中快速、高产地生产沼气
DOI：
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发表时间：
2013
影响因子：
2.8
通讯作者：
B. Sen
中科院分区：
文献类型：
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作者：
K. Sen;S. Mahalingam;B. Sen
以麻疯树种子饼为研究对象，研究了共消化和添加金属离子对提高其厌氧消化产气潜力的影响。首先进行了批量试验，以获得最佳沼气产量的最大JSC浓度，然后与甘蔗渣共消化，添加Fe2+。当JSC浓度为15% （w/v）时，产气率为66.4 mL/d，比产气率为9.7 mL/d/gVS，产气率为0.064 m3/kgVS。共消化策略将饲料（10% JSC+5%甘蔗渣，w/v）的碳氮比从14（单独JSC）提高到26.5，使JSC的沼气产量达到0.136 m3/kgVS，提高了2.1倍。在JSC和甘蔗渣混合物中添加Fe2+，沼气产量为0.203 m3/kgVS，甲烷含量为66%，反应器产甲烷量为8.8 L/L。在短消化时间（15 d）内，与甘蔗渣共消化并添加Fe2+，产气量比单独发酵高3.2倍。
Co-digestion and metal ion addition strategies to improve the biogas production potential of Jatropha seed cake (JSC) by anaerobic digestion were evaluated in the present study. Initially, batch experiments were carried out to obtain the maximum JSC concentration for optimum biogas yield, followed by co-digestion with bagasse, and addition of Fe2+. The optimum JSC concentration of 15% (w/v) gave biogas production rate (BPR) of 66.4 mL/d, specific BPR of 9.7 mL/d/gVS and biogas yield of 0.064 m3/kgVS. The co-digestion strategy increased the carbon/nitrogen of feed (10% JSC+5% Bagasse, w/v) to 26.5 from 14 (JSC alone), resulting in biogas yield of 0.136 m3/kgVS of JSC, a 2.1-fold increase. Addition of Fe2+ to JSC and bagasse mixture led to biogas yield of 0.203 m3/kgVS, with methane content of 66% and methane production of 8.8 L/L reactor. With short digestion time of 15 days, co-digestion of JSC with bagasse and addition of Fe2+ showed 3.2-fold higher biogas yield than JSC alone.