污水污泥的利用

I. Karp, K. Pyanykh, K. Pianykh
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引用次数: 1

摘要

污水污泥利用技术必须满足两个要求:利用能源潜力和确保其处理的产品不受环境的负面影响。满足这些要求的沉积物处理新技术正在开发:热解、加氢热解、发酵和气化联合工艺、多联产、蒸汽转化、与其他燃料混合气化、热催化重整、三级气化。这些技术大多尚未商业化。乌克兰“新鲜”沉积物的能源潜力估计为44.6万吨有条件燃料。它用于发电和热能以及二次液体和固体燃料是适当的,因为它符合分散能源发展的全球趋势。在乌克兰的条件下,经济有效和可接受的是处理沉淀物的技术,是它们与其他固体燃料和废物在发电站的锅炉和水泥窑中联合燃烧。对于能源分散的对象,应优先采用污泥的气化或热解工艺。堆肥技术可用于处理积累的沉淀物。圣经27,图5,表3。
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UTILIZATION OF SEWAGE SLUDGE
Sewage sludge utilization technologies must meet two requirements: the use of energy potential and ensuring that the products of their processing are not negatively affected by the environment. New technologies for the disposal of sediments that meet these requirements are being developed: pyrolysis, hydro pyrolysis, combined processes of fermentation and gasification, polygeneration, steam conversion, gasification of mixtures with other fuels, thermocatalytic reforming, three-stage gasification. Most of these technologies have not yet been commercialized. The energy potential of «fresh» sediments in Ukraine is estimated at 446 thousand tons of conditional fuel. Its use for the electricity production and thermal energy and secondary liquid and solid fuels is appropriate as being consistent with the global trend of decentralized energy development. The economically efficient, acceptable for Ukrainian conditions is the technology used to dispose of sediment, is their joint combustion with other solid fuels and waste in boilers of power stations and in cement kilns. For objects of decentralized energy, it should be preferred to the processes of gasification or pyrolysis of sewage sludge. Composting technology is acceptable to dispose of accumulated precipitates. Bibl. 27, Fig. 5, Tab. 3.
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