Effect of different microbial culture on biohydrogen production from Benincasa hispida waste

Minu Singh, D. Kumari, Pooja Chahar, Yogita Singhal, Radhika Singh
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引用次数: 3

Abstract

Biohydrogen production has gained attention in recent years using anaerobic degradation method. In the present study, Benincasa hispida (petha) solid waste generated from industries were used as substrate. Three different inoculum namely, cow dung (CD), goat dung (GD) and pretreated soil (SP) were used as a bacterial source. They were used separately and also in combination of two cultures in equal ratio. The cultures then mixed with petha waste slurry in 20:80 in batch reactor of 500 mL with a working volume of 400 mL under anaerobic conditions. Substrate used in the present study had chemical oxygen demand and glucose concentration of 3150 mg/L and 11 mg/L respectively. Biohydrogen was found to be maximum in GD+CD (87%) used as the bacterial inoculum. Acetic acid was also estimated and a maximum concentration of 2650 ppm was found in the reactor operated using GD as bacterial source. Degradation in various parameters was also studied in terms of COD, glucose.
不同微生物培养对黑豆废弃物产氢的影响
近年来,利用厌氧降解法生产生物氢得到了广泛的关注。本研究以工业产生的贝南卡萨(Benincasa hispida)固体废物为底物。以牛粪(CD)、羊粪(GD)和预处理土壤(SP)三种不同的接种物作为细菌源。它们可以单独使用,也可以以相同的比例与两种培养物结合使用。然后在厌氧条件下,将培养物与petha废液以20:80的比例在500 mL的间歇式反应器中混合,工作体积为400 mL。本研究所用底物的化学需氧量和葡萄糖浓度分别为3150 mg/L和11 mg/L。以GD+CD作为细菌接种物,生物氢含量最高(87%)。在以GD为细菌源的反应器中,乙酸的最大浓度为2650 ppm。还研究了不同参数下COD、葡萄糖的降解情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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