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首页> 外文期刊>Energy Conversion & Management >Improving photofermentative biohydrogen production by using intermittent ultrasonication and combined industrial effluents from palm oil, pulp and paper mills
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Improving photofermentative biohydrogen production by using intermittent ultrasonication and combined industrial effluents from palm oil, pulp and paper mills

机译：通过使用间歇性超声波处理以及棕榈油，纸浆和造纸厂的联合工业废水，改善光发酵生物氢的生产

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An ultrasonication technique was applied intermittently onto photofermentation broth during the first six hours of photofermentation to improve biohydrogen production by using Rhodobacter sphaeroides NCIMB8253. In this research, photofermentation broth consisted of a combination of palm oil (25%, v/v), pulp and paper (75%, v/v) mill effluents as well as liquid inoculum. The effects of amplitude (10, 20 and 30%, A) and ultrasonication duration (5, 10 and 15 min, T) were investigated in terms of their influences on photofermentative biohydrogen yield and total chemical oxygen demand (CODtotal) removal. The recommended ultrasonication parameters were found at the middle range of amplitude and duration (A20T10). Using A20T10 intermittent treatment, the production of biohydrogen could be maximized up to 14.438 m1, H-2/mL(medium) with a CODtotal removal and light efficiency of 52.2% and 7.412%, respectively. By comparing the treatment without intermittent ultrasonication, an increase of biohydrogen yield by 44.6% was achieved in A20T10 treatment. A total energy input of 306.1 J/mL (A20T1O treatment) was supplied to improve substrate consumption and light distribution during the photofermentation, which led to the increase of biohydrogen yield. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在光发酵的前六个小时内，将超声波技术间歇性地应用于光发酵肉汤，以通过使用球形球形红细菌NCIMB8253改善生物氢的产生。在这项研究中，光发酵肉汤由棕榈油（25％，v / v），纸浆和纸张（75％，v / v）研磨废液以及液体接种物组成。根据振幅对光发酵生物氢产量和总化学需氧量（CODtotal）去除的影响，研究了振幅（10％，20％和30％，A）和超声持续时间（5、10和15分钟，T）的影响。在振幅和持续时间（A20T10）的中间范围内找到了推荐的超声参数。使用A20T10间歇处理，生物氢的产量最高可达14.438 m1，H-2 / mL（中），COD的总去除量和光效率分别为52.2％和7.412％。通过比较无间歇超声处理，A20T10处理的生物氢产率提高了44.6％。提供总能量输入306.1 J / mL（A20T10处理），以改善光发酵过程中的底物消耗和光分布，从而提高了生物氢的产量。 （C）2016 Elsevier Ltd.保留所有权利。

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