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Start‐Up Study on Biohydrogen from Palm Oil Mill Effluent in a Pilot‐Scale Reactor
Clean - Soil Air Water ( IF 1.5 ) Pub Date : 2020-06-25 , DOI: 10.1002/clen.202000192 Azam Akhbari 1 , Onn Chiu Chuen 1 , Ali Akbar Zinatizadeh 2 , Shaliza Ibrahim 3
Clean - Soil Air Water ( IF 1.5 ) Pub Date : 2020-06-25 , DOI: 10.1002/clen.202000192 Azam Akhbari 1 , Onn Chiu Chuen 1 , Ali Akbar Zinatizadeh 2 , Shaliza Ibrahim 3
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A start‐up study for biohydrogen production from palm oil mill effluent (POME) is carried out in a pilot‐scale up‐flow anaerobic sludge blanket fixed‐film reactor (UASFF). A substrate with a chemical oxygen demand (COD) of 30 g L−1 is used, starting with molasses solution for 30 days and followed by a 10% v/v increment of POME/molasses ratio. At 100% POME, a hydrogen content of 80%, hydrogen production rate of 36 L H2 per day, and maximum COD removal of 48.7% are achieved. Bio‐kinetic coefficients of Monod, first‐order, Grau second‐order, and Stover‐Kincannon kinetic models are calculated to describe the performance of the system. The steady‐state data with 100% POME shows that Monod and Stover‐Kincannon models with bio‐kinetic coefficients of half‐velocity constant (Ks) of 6000 mg COD L−1, microbial decay rate (Kd) of 0.0015 per day, growth yield constant (Y) of 0.786 mg volatile suspended solids (VSS)/mg COD, specific biomass growth rate (μmax) of 0.568 per day, and substrate consumption rate of (Umax) 3.98 g/L day could be considered as superior models with correlation coefficients (R2) of 0.918 and 0.989, respectively, compared to first‐order and Grau's second‐order models with coefficients of K1 1.08 per day, R2 0.739, and K2s 1.69 per day, a = 7.0 per day, b = 0.847.
中文翻译：
中试反应堆中棕榈油厂废水中生物氢的启动研究
在中试规模的上流厌氧污泥床固定膜反应器（UASFF）中进行了棕榈油厂废水（POME）生产生物氢的启动研究。使用具有30 g L -1的化学需氧量（COD）的底物，从糖蜜溶液开始30天，然后以10％v / v的POME /糖蜜比率增加。在100％POME时，氢含量为80％，每天的氢生产率为36 LH 2，最大COD去除率为48.7％。计算了Monod，一阶，Grau二阶和Stover-Kincannon动力学模型的生物动力学系数，以描述系统的性能。具有100％POME的稳态数据表明，Monod和Stover-Kincannon模型的生物动力学系数为半速度常数（K小号）的6000毫克COD大号-1，微生物衰减率（ķ d 0.0015每天，生长收率常数（）ÿ的0.786毫克挥发性悬浮固体）（VSS）/毫克COD，特定生物量生长速率（μ最大）的与一阶模型和Grau的二阶模型相比，每天0.568和基质消耗率（U max）3.98 g / L天可以被认为是相关系数（R 2）分别为0.918和0.989的优越模型。的系数ķ 1 1.08每天，- [R 2 0.739，和ķ 2秒钟1.69每天，一个=每天7.0，b = 0.847。
更新日期：2020-06-25
中文翻译：
中试反应堆中棕榈油厂废水中生物氢的启动研究
在中试规模的上流厌氧污泥床固定膜反应器（UASFF）中进行了棕榈油厂废水（POME）生产生物氢的启动研究。使用具有30 g L -1的化学需氧量（COD）的底物，从糖蜜溶液开始30天，然后以10％v / v的POME /糖蜜比率增加。在100％POME时，氢含量为80％，每天的氢生产率为36 LH 2，最大COD去除率为48.7％。计算了Monod，一阶，Grau二阶和Stover-Kincannon动力学模型的生物动力学系数，以描述系统的性能。具有100％POME的稳态数据表明，Monod和Stover-Kincannon模型的生物动力学系数为半速度常数（K小号）的6000毫克COD大号-1，微生物衰减率（ķ d 0.0015每天，生长收率常数（）ÿ的0.786毫克挥发性悬浮固体）（VSS）/毫克COD，特定生物量生长速率（μ最大）的与一阶模型和Grau的二阶模型相比，每天0.568和基质消耗率（U max）3.98 g / L天可以被认为是相关系数（R 2）分别为0.918和0.989的优越模型。的系数ķ 1 1.08每天，- [R 2 0.739，和ķ 2秒钟1.69每天，一个=每天7.0，b = 0.847。
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