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Thiosulphate driven autotrophic denitrification via nitrite using synthetic wastewater
Journal of Chemical Technology and Biotechnology ( IF 3.4 ) Pub Date : 2021-02-04 , DOI: 10.1002/jctb.6692
Evangelos Statiris 1 , Evanthis Hadjimitsis 1 , Constantinos Noutsopoulos 1 , Simos Malamis 1
Affiliation  

The removal of biological nitrite from wastewater can occur by both heterotrophic and autotrophic bacteria. Autotrophic denitritation can be implemented by using different sulphur forms (e.g., S2−, S0 or S₂O₃2−) as electron donors, and there is no need for organic carbon availability, as is required in heterotrophic denitrification. This work investigated an alternative biochemical pathway for nitrite removal from synthetic wastewater with high nitrite content, using thiosulphate as electron donor. The process was examined for 170 days in three identical 1 L sequencing batch reactors (SBR) that were inoculated with filtrate originating from the aerobic filters of the desulphurization unit of a wastewater treatment plant (WWTP).

中文翻译:

使用合成废水通过亚硝酸盐硫代硫酸盐驱动的自养反硝化

异养和自养细菌均可从废水中去除生物亚硝酸盐。自养反硝化可以通过使用不同形式的硫(例如S 2-,S 0或S 2 O 3 2-)作为电子给体来实现,并且不需要异养反硝化中所需的有机碳利用率。这项工作研究了使用硫代硫酸盐作为电子供体,从亚硝酸盐含量高的合成废水中去除亚硝酸盐的另一种生化途径。在三个相同的1 L顺序批处理反应器(SBR)中检查了该过程170天,这些反应器接种了来自废水处理厂(WWTP)脱硫装置的好氧过滤器的滤液。
更新日期:2021-02-04
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