厌氧流化系统处理日记废水的启动制度

David M.L. da Motta-Marques , Sandra M. Cayless , John N. Lester
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引用次数: 10

摘要

4个厌氧流化床在5000 mg COD升- 1的奶牛场型废水上启动,使用不同的制度:(a)两相;(b) Ca2+添加;(c)聚合物加成;(d)控制。在钙和生物聚合物改性的两相反应器中,当COD为9.4 kg−3 day−1时,底物去除率达到76-92%。数据表明,去除效率和生物量浓度峰值是可变的,但在上述三个反应器中都形成了成熟的生物膜,这取决于所采用的方案。挥发性脂肪酸浓度由中间碱度/部分碱度变化反映。
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Start-up regimes for anaerobic fluidised systems treating diary wastewater

Four anaerobic fluidised-beds were started-up on a dairy-type effluent of 5000 mg COD litre−1 using different regimes: (a) two-phase; (b) Ca2+ addition; (c) polymer addition; and (d) control. Substrate removal efficiencies reached 76–92% at 9·4 kg COD−3 day−1 in the two-phase, calcium- and biopolymer-amended reactors. The data suggest that removal efficiency and biomass concentration peaks were variable but mature biofilms, which were dependent on the protocol applied, were developed in the above-mentioned three reactors. Volatile fatty acids concentrations were reflected by intermediary/partial alkalinity variations.

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