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首页> 外文期刊>Applied Energy >High-rate thermophilic bio-methanation of the fine sieved fraction from Dutch municipal raw sewage: Cost-effective potentials for on-site energy recovery
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High-rate thermophilic bio-methanation of the fine sieved fraction from Dutch municipal raw sewage: Cost-effective potentials for on-site energy recovery

机译：来自荷兰市政原污水的细筛分的高速高温生物甲烷化：现场能量回收的成本效益潜力

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摘要

Sieving of Dutch raw sewage over a 350 mu m screen, produces a cake layer called fine sieved fraction (FSF), an energy-rich material that contains mainly cellulosic fibers originating from toilet paper. The FSF biomethane potential (BMP) was studied under both mesophilic (35 degrees C) and thermophilic (55 degrees C) conditions, whereas the stability of the fed-batch digesters at both 35 degrees C and 55 degrees C was researched by varying the inoculum to substrate ratios (R-I/S: 0.5-15). Results clearly showed advantages of thermophilic conditions over mesophilic conditions at all tested R-I/S. Stable digestion was even possible at an R-I/S of 0.5 at 55 degrees C. Following the results of the batch tests, a compact high loaded thermophilic digester for on-site energy recovery from FSF was proposed. Based on the results of the study, high biogas production rates at high organic loading rates (OLRs) were predicted. In the energy balance calculations, surplus heat production from combined heat and power (CHP) was utilized to dry the digestate sludge before transportation to an incineration plant or for use in pyrolysis or gasification processes. Overall results showed the potential of generating 46% of the required energy for wastewater treatment via high rate FSF digestion and subsequent conversion of the bio-methane into electricity and heat. The net recoverable energy from fine sieving, anaerobic digestion of FSF, dewatering of digestate sludge and drying of dewatered digestate sludge amounted 287 MI/ton FSF and 237 kW h electric/ton FSF at 23% TS. (C) 2015 Elsevier Ltd. All rights reserved.
机译：在350微米的筛网上筛分荷兰原污水，产生一个称为精细筛分（FSF）的滤饼层，这是一种富含能量的材料，主要包含来自厕纸的纤维素纤维。在中温（35摄氏度）和嗜热（55摄氏度）条件下研究了FSF生物甲烷潜能（BMP），而通过改变接种量研究了分批进料消化池在35摄氏度和55摄氏度下的稳定性与底物的比率（RI / S：0.5-15）。结果清楚地表明，在所有测试的R / I / S下，嗜热条件优于嗜温条件。甚至可以在55°C下以0.5的R-I / S进行稳定的消化。根据分批测试的结果，提出了一种紧凑的高负荷高温消化器，用于从FSF现场回收能量。根据研究结果，可以预测高有机负荷率（OLR）下的高沼气生产率。在能量平衡计算中，利用热电联产（CHP）产生的余热来干燥消化后的污泥，然后再运往焚烧厂或用于热解或气化过程。总体结果显示，通过高速率FSF消化以及随后将生物甲烷转化为电和热，可以产生废水处理所需能量的46％。在23％TS下，精细筛分，FSF厌氧消化，消化污泥脱水和脱水消化污泥干燥的净可回收能量总计为287 MI /吨FSF和237 kW h电/吨FSF。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Applied Energy》 |2016年第1期|569-582|共14页
  • 作者

    Ghasimi Dara S. M.; de Kreuk Merle; Maeng Sung Kyu; Zandvoort Marcel H.; van Lier Jules B.;

  • 作者单位

    Delft Univ Technol TU Delft, Sanit Engn Sect, Dept Water Management, Fac Civil Engn & Geosci, Stevinweg 1, NL-2628 CN Delft, Netherlands;

    Delft Univ Technol TU Delft, Sanit Engn Sect, Dept Water Management, Fac Civil Engn & Geosci, Stevinweg 1, NL-2628 CN Delft, Netherlands;

    Sejong Univ, Dept Civil & Environm Engn, 98 Gunja Dong, Seoul 143747, South Korea;

    Waternet, Korte Ouderkerkerdijk 7,POB 94370, NL-1090 GJ Amsterdam, Netherlands;

    Delft Univ Technol TU Delft, Sanit Engn Sect, Dept Water Management, Fac Civil Engn & Geosci, Stevinweg 1, NL-2628 CN Delft, Netherlands;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Anaerobic digestion; Mesophilic, thermophilic; BMP; CHP, energy recovery;

    机译：厌氧消化;嗜温;嗜热;BMP;CHP;能量回收;

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