厌氧污泥系统中可溶性微生物产物(SMP)的形成

2011 Second International Conference on Mechanic Automation and Control Engineering Pub Date : 2011-07-15 DOI:10.1109/MACE.2011.5987412

Hu Xi-quan

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引用次数: 0

摘要

采用厌氧折流板反应器(ABR)在中温条件下处理缓冲合成葡萄糖底物(COD约500mg /L)，研究了可溶微生物产物的形成。一般来说，SMP产量随温度的降低而增加。高温下，由于挥发性脂肪酸完全降解，SMP与可溶性化学需氧量(SCOD)之比较高。SMP占ABR出水SCOD的0.85。各隔室在有机载荷冲击作用下的性能不同。总体而言，产酸区SMP浓度波动幅度大于产甲烷区，这可能是由于产酸区SMP的产生量大于产甲烷区。另一个原因可能是后车厢的微生物极度缺乏营养，SMP作为次级代谢物被部分消耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Formation of soluble microbial products (SMP) in an anaerobic sludge system

A bench-scale experiment has been carried out to investigate the formation of soluble microbial products in an anaerobic baffled reactor (ABR) treating buffered synthetic glucose substrate (about 500mg COD/L) under mesophilic temperatures. Generally, SMP production increased with decreasing temperature. A higher SMP to soluble chemical oxygen demand (SCOD) ratio was found at high temperature because of complete volatile fatty acid degradation. SMP accounted for amount to 0.85 of the SCOD in the effluent of the ABR. The performance of each compartment under organic load shock was different. In general, the fluctuation of SMP concentration in acidogenesis zone was bigger than in methanogenic zone which probably due to more SMPs are produced during acidogenesis than during methanogenesis. The other reason probally was the microorganisms in the rear compartment extremely deficient in nutrients and the SMP was partially consumed as a secondary metabolite.

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2011 Second International Conference on Mechanic Automation and Control Engineering

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