Comparison of startup and anaerobic wastewater treatment in UASB, hybrid and baffled reactor
Comparison of startup and anaerobic wastewater treatment in UASB, hybrid and baffled reactor
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UASB、混合式和折流板反应器启动与厌氧废水处理的比较
DOI：
10.1007/s004490050699
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
J. Buday
中科院分区：
文献类型：
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作者：
M. Hutňan;M. Drtil;L. Mrafková;J. Derco;J. Buday
进行了一项实验研究，以比较在37 °C下同时运行的选定厌氧高速反应器的性能。 以城市污水处理厂的厌氧消化污泥为接种物，研究了上流式厌氧污泥床反应器（UASB）、UASB反应器与厌氧滤池的复合反应器（AHR）和厌氧折流板反应器（ABR）的反应性能。该废水含有乙酸钠和葡萄糖，营养物质和微量元素平衡（COD 6000 mg · l−1）。所有反应器的有机负荷率（Bv）从初始的0.5 kg · m-3· d-1逐渐增加到15 kg · m-3· d-1。从反应器的性能比较，最低的生物量洗脱导致ABR。在UASB中，Bv为6 kg · m-3· d-1时，生物量洗脱显著;在AHR中，Bv为12 kg · m-3· d-1时，生物量洗脱显著。ABR对碳酸氢钠维持pH值的需求是UASB和AHR的2倍。所有三个反应器的COD去除效率相当- 80- 90%。ABR反应器中的生物质颗粒化速度明显快于其他两个反应器。这一事实是由丝状菌的动力学选择theMethanotrixsp。在高浓度（大于1.5 g · l-1）乙酸盐条件下，
An experimental study was carried out to compare the performance of selected anaerobic high rate reactors operated simultaneously at 37 °C. The three reactors, namely upflow anaerobic sludge bed reactor (UASB), hybrid of UASB reactor and anaerobic filter (anaerobic hybrid reactor – AHR) and anaerobic baffled reactor (ABR), were inoculated with the anaerobic digested sludge from municipal wastewater treatment plant and tested with synthetic wastewater. This wastewater contained sodium acetate and glucose with balanced nutrients and trace elements (COD 6000 mg · l−1). Organic loading rate (Bv) was increased gradually from an initial 0.5 kg · m−3· d−1to 15 kg · m−3· d−1in all the reactors. From the comparison of the reactors' performance, the lowest biomass wash-out resulted from ABR. In the UASB, significant biomass wash-out was observed at theBv6 kg · m−3· d−1, and in the AHR at theBv12 kg · m−3· d−1. The demand of sodium bicarbonate for pH maintenance in ABR was two times higher as for UASB and AHR. The efficiency of COD removal was comparable for all three reactors – 80–90%. A faster biomass granulation was observed in the ABR than in the other two reactors. This fact is explained by the kinetic selection of filamentous bacteria of theMethanotrixsp. under a high (over 1.5 g · l−1) acetate concentration.