Acetate uptake efficiency of polyphosphate-accumulating organisms under exposure to surfactants.
Acetate uptake efficiency of polyphosphate-accumulating organisms under exposure to surfactants.
复制标题
暴露于表面活性剂下聚磷酸盐积累生物体的乙酸盐吸收效率。
DOI：
10.2166/wst.2009.104
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
H. Furumai
中科院分区：
文献类型：
--
作者：
K. Tsuji;M. Fujita;H. Furumai
我们研究了表面活性剂，如直链烷基苯磺酸盐（LAS）和醇乙氧基化物（AE）对乙酸吸收聚磷菌（PAOs）在厌氧条件下，使用的磷酸盐的需求（+ Δ P/-Δ Ac比）。为了估计+ Δ P/-Δ Ac比率，使用从厌氧/好氧序批式反应器收集的活性污泥进行厌氧分批测试，所述厌氧/好氧序批式反应器用于处理连续补充有含有LAS和AE的洗涤剂的城市废水。我们证明了LAS和AE对PAO吸收乙酸盐有积极和消极的影响。缺点是长期暴露于洗涤剂会抑制PAO对乙酸盐的吸收，从而降低效率，即使在测试期间不再存在表面活性剂。此外，LAS和/或AE与乙酸盐的存在进一步降低了效率。优点是LAS和AE是PAO的聚羟基链烷酸酯的潜在来源，因为乙酸酯在厌氧条件下由表面活性剂产生。
We investigated the influence of surfactants such as linear alkylbenzene sulfonates (LAS) and alcohol ethoxylates (AE) on acetate uptake by polyphosphate-accumulating organisms (PAOs) under anaerobic conditions, using the phosphate requirement for acetate uptake (+DeltaP/-DeltaAc ratio). In order to estimate the +DeltaP/-DeltaAc ratio, anaerobic batch tests were conducted using activated sludge collected from an anaerobic/oxic sequencing batch reactor used to treat municipal wastewater continuously supplemented with a detergent containing LAS and AE. We demonstrated that LAS and AE have both positive and negative impacts on acetate uptake by PAOs. The disadvantage is that long-term exposure to the detergent inhibits acetate uptake by PAOs, thus deteriorating the efficiency, even if the surfactants are no longer present during the tests. Furthermore, the existence of LAS and/or AE with acetate further diminishes the efficiency. The advantage is that LAS and AE are potential sources of polyhydroxyalkanoate for PAOs, because acetate is produced from the surfactants under anaerobic conditions.
影响因子：
12.8
作者：
O. Ichihashi;H. Satoh;T. Mino
通讯作者：
O. Ichihashi;H. Satoh;T. Mino