厌氧折流板反应器在厨余沼气生产中的应用

A. Malakahmad, N. Basri, S. M. Zain
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引用次数: 1

摘要

由于马来西亚城市化和工业化的快速发展,固体废物产生的巨大增加是不可避免的。近年来,有机废物的厌氧消化越来越受到世界各国的关注,因为生物产甲烷过程将有机物分解产生甲烷气体,甲烷气体是热电联产装置中作为燃料的一种优良能源。在这项研究中,厌氧折流板反应器(ABR)应用于厨房垃圾生产沼气,以确定甲烷气体生成的最佳效率和污泥作为有机肥料的潜在用途。将不同比例的厨余垃圾与活性污泥在反应器中进行混合试验,以达到在最短时间内产生最佳甲烷量的目的。结果表明,75%的厨余垃圾和25%的活性污泥的组合效果最好,甲烷气为74.1%。此外,通过对反应器中污泥的测试确定肥料价值,表明其未来在堆肥中使用的潜力。氮、磷、钾含量分别为0.95%、0.80%和0.45%。根据观察,ABR中厨厨垃圾的厌氧消化能够为综合固体废物管理提供重要元素,该系统的能源生产可能是许多社区开始回收宝贵资源并实现零废物产生的一个很好的理由。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The application of an anaerobic baffled reactor to produce biogas from kitchen waste
The tremendous increase in solid waste generation is an unavoidable occurrence due to the fast growing urbanisation and industrialisation in Malaysia. Anaerobic digestion of organic wastes is receiving more attention in recent years throughout the world because the biomethanogenesis process decomposes organic matter to produce methane gas, which is an excellent energy source as fuel in combined heat and power units. In this study, an application of an anaerobic baffled reactor (ABR) for the production of biogas from kitchen waste was carried out to identify the optimum efficiency of methane gas generation and the potential usage of sludge as organic fertiliser. Different proportions of kitchen waste and activated sewage sludge were mixed and tested in the reactor to achieve the best amount of methane production in the shortest time. Results showed that the combination of 75% of kitchen waste and 25% of activated sewage sludge yielded the best result, which was 74.1% of methane gas. Further, determination for fertiliser value from tests on the sludge in the reactor showed its potential for future use in composting. The amounts of N, P and K were 0.95, 0.80 and 0.45% respectively. According to the observation, anaerobic digestion of kitchen waste in the ABR is able to provide a vital element in an integrated solid waste management and the energy production from this system could be a good reason for many communities to start recycling valuable resources and hence achieving zero waste production.
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