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首页> 外文期刊>Journal of Hazardous Materials >Rapid restoration of methanogenesis in an acidified UASB reactor treating 2,4,6-trichlorophenol (TCP)
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Rapid restoration of methanogenesis in an acidified UASB reactor treating 2,4,6-trichlorophenol (TCP)

机译：在处理2,4,6-三氯苯酚（TCP）的酸化UASB反应器中快速恢复甲烷生成

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Anaerobic bioreactors are often used for removal of xenobiotic and-highly toxic pollutants from wastewater. Most of the time, the pollutant is so toxic that the stability of the reactor becomes compromised: It is well known that methanogens are one of the most sensitive organisms in the anaerobic consortia and hence the stability of the reactors is highly dependant on methanogenesis. Unfortunately few studies have focused on recovering the methanogenic activity once it has been inhibited by highly toxic pollutants. Here we establish a quick recovery strategy for neutralization of an acidified UASB reactor after failure by intoxication with an excess of TCP in the influent Once the reactor returned to pH values compatible with methanogenesis, biogas production was re-started after one day and the system was re-acclimated to TCP. Successful removal of TCP from synthetic wastewater was shown for concentrations up to 70 mg/L after restoration. (C) 2016 Elsevier B.V. All rights reserved.
机译：厌氧生物反应器通常用于去除废水中的异生物和高毒性污染物。在大多数情况下，污染物的毒性是如此之大，以至于反应器的稳定性受到损害：众所周知，产甲烷菌是厌氧菌群中最敏感的生物之一，因此，反应器的稳定性高度依赖于产甲烷作用。不幸的是，很少有研究集中于恢复产甲烷活性，一旦甲烷被高毒性污染物抑制。在这里，我们建立了一种快速恢复策略，用于中和酸化的UASB反应器，该反应在中毒后因进水中过量的TCP中毒而中和。一旦反应器恢复到与甲烷生成兼容的pH值，一天后便重新开始生产沼气，重新适应TCP。恢复后，从合成废水中成功去除TCP的浓度高达70 mg / L。 （C）2016 Elsevier B.V.保留所有权利。

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