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首页> 外文会议>European Symposium on Environmental Biotechnology(ESEB 2004); 20040425-20040428; Oostende; BE >Aerobic granulation in a sequencing batch reactor fed with industrial wastewater
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Aerobic granulation in a sequencing batch reactor fed with industrial wastewater

机译：顺序分批反应器中需氧颗粒化工业废水

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摘要

The main objective of this research was focused on the enhancement of the settling properties of the sludge of an industrial scale Sequencing Batch Reactor (SBR) by promoting granules formation. For this purpose, two laboratory scale SBRs, R1 and R2, were inoculated and fed with the same sludge and wastewater used in the industrial scale SBR in which a sludge with poor settling properties is normally generated. Both reactors were operated under similar conditions during most of the experimental period with exception of an anoxic phase of 10 and 30 min which was included at the beginning of every cycle of operation of R1. Organic and nitrogen loading rates (OLR and NLR) applied to both systems were as high as 7g COD/(L·d) and 0.7 g N/(L·d), respectively. Nitrogen removal efficiency was 80% in both units even considering that R2 was operated always under aerobic conditions. Granules with similar morphology were developed in both systems. Size distribution was comprehended between 0.25 and 4.0 mm in both cases.
机译：这项研究的主要目标集中在通过促进颗粒的形成来增强工业规模测序间歇反应器（SBR）的污泥的沉降性能。为此，对两个实验室规模的SBR（R1和R2）进行了接种，并注入了与工业规模SBR中使用的相同的污泥和废水，在工业规模SBR中，通常会产生沉降性能差的污泥。在整个实验期间的大部分时间内，两个反应器均在相似的条件下运行，不同的是缺氧阶段为10分钟和30分钟，这包括在R1运行的每个循环开始时。两种系统的有机物和氮负载量（OLR和NLR）分别高达7g COD /（L·d）和0.7 g N /（L·d）。即使考虑到R2始终在有氧条件下运行，两个装置的脱氮效率均为80％。在两个系统中都开发了具有相似形态的颗粒。两种情况下的尺寸分布均在0.25至4.0 mm之间。

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