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首页> 外文期刊>Environmental progress & sustainable energy >Effect of Temperature and Organic Loading Rate on Upflow Anaerobic Sludge Blanket Reactor and CH_4 Production by Treating Liquidized Food Waste
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Effect of Temperature and Organic Loading Rate on Upflow Anaerobic Sludge Blanket Reactor and CH_4 Production by Treating Liquidized Food Waste

机译：温度和有机负荷率对液化餐厨垃圾厌氧污泥床反应器和CH_4生产的影响

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摘要

Anaerobic treatment of liquidized food waste (LFW) was carried out in an upflow anaerobic sludge blanket reactor (UASBR) by stepwise increase in organic loading rate (OLR) and temperature. The chemical oxygen demand (COD), total organic carbon (TOC), biogas and methane production were measured at hydraulic retention time (HRT) of 10 to 4d, and start up strategy of the reactor was monitored for 10 weeks. Thermophilic condition was achieved by increasing the temperature from 30 to 55℃, and pH was maintained at 7 ± 0.5 throughout the experiment. Maximum COD removal efficiency was 93-67% (r = 0.84) at an OLR of 12.5 g-COD/Ld and 4d HRT. Maximum TOC removal efficiency was 79.14% (r = -0.94) at an influent TOC concentration of 3-59 g/L. Biogas and methane yield were recorded to a maximum of 1.364 L/g-COD_(removed) d (r = 0.81), 0.912 L/g-COD_(removed)d (r= 0.83), and average methane content of biogas was 63%-The reactor was fully acclimatized at 55℃ and achieved stability with high removal efficiency and biogas production. An OLR of 12.5 g-COD/Ld and HRT of 4 days were suitable for the treatment of LFW in UASBR. The treatment process can also be extendable for more than 10 weeks without any measurable problem.
机译：通过逐步增加有机负荷率（OLR）和温度，在上流式厌氧污泥床反应器（UASBR）中对液态食物垃圾（LFW）进行厌氧处理。在水力停留时间（HRT）为10到4天时测量化学需氧量（COD），总有机碳（TOC），沼气和甲烷的产生，并监测反应器的启动策略，持续10周。通过将温度从30升高到55℃来达到嗜热条件，并且在整个实验过程中将pH值保持在7±0.5。在12.5 g-COD / Ld和4d HRT的OLR下，最大COD去除效率为93-67％（r = 0.84）。在进水TOC浓度为3-59 g / L时，最大的TOC去除效率为79.14％（r = -0.94）。记录的沼气和甲烷产量最高为1.364 L / g-COD_（去除）d（r = 0.81），0.912 L / g-COD_（去除）d（r = 0.83），平均沼气中甲烷含量为63 ％-反应器在55℃完全适应环境，并具有很高的去除效率和沼气产生稳定性。 12.5 g-COD / Ld的OLR和4天的HRT适合用于UASBR中的LFW的治疗。治疗过程也可以延长10周以上，而不会出现任何可衡量的问题。

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  • 来源
    《Environmental progress & sustainable energy》 |2012年第1期|p.114-121|共8页
  • 作者

    M.A. Latif; A. Ahmad; R. Ghufran; Z.A. Wahid;

  • 作者单位

    Faculty of Civil and Environmental Engineering, University Malaysia Pahang (UMP), Lebuhraya Uin Razak,26300 Gambang, Kuantan, Pahang, Malaysia;

    Faculty of Civil and Environmental Engineering, University Malaysia Pahang (UMP), Lebuhraya Uin Razak,26300 Gambang, Kuantan, Pahang, Malaysia;

    Faculty of Civil and Environmental Engineering, University Malaysia Pahang (UMP), Lebuhraya Uin Razak,26300 Gambang, Kuantan, Pahang, Malaysia;

    Faculty of Civil and Environmental Engineering, University Malaysia Pahang (UMP), Lebuhraya Uin Razak,26300 Gambang, Kuantan, Pahang, Malaysia;

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

    liquidized food waste; UASB reactor; COD; VFA; TOC; biogas and methane;

    机译：液态食物垃圾;UASB反应堆;化学需氧量VFA;TOC;沼气和甲烷;

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