Study on a novel non-dissolved redox mediator catalyzing biological denitrification (RMBDN) technology
Study on a novel non-dissolved redox mediator catalyzing biological denitrification (RMBDN) technology
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新型非溶解氧化还原介质催化生物反硝化（RMBDN）技术研究
DOI：
10.1016/j.biortech.2010.01.029
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发表时间：
2010-06-01
影响因子：
11.4
通讯作者：
Wang, Yuyu
中科院分区：
文献类型：
--
作者：
Guo, Jianbo;Kang, Li;Wang, Yuyu
关于氧化还原介质对反硝化过程的促进作用的研究文献很少。本文首次探索了一种新型的非溶解性氧化还原介体催化生物脱氮（RMBDN）技术，并利用固定化蒽醌研究了氧化还原介体对反硝化过程的促进作用。蒽醌作为氧化还原介体能够提高反硝化速率，并通过海藻酸钙（CA）包埋固定化。结果表明，人工氧化还原介体蒽醌能够提高反硝化速率约2倍，且固定化蒽醌微球的稳定氧化还原电位（ORP）值比未固定蒽醌微球的对照低约20 mV。重复批量操作的结果表明，蒽醌固定化珠似乎表现出良好的可重复使用性。本研究为氧化还原介体在反硝化过程中的应用提供了新的思路。(C)2010爱思唯尔有限公司版权所有。
There are little literatures about the accelerating effect of redox mediators on the denitrification processes. In this paper, a novel non-dissolved redox mediator catalyzing biological denitrification (RMBDN) technology was first explored, and the accelerating effect of redox mediator on the denitrification processes was conducted with immobilized anthraquinone. Anthraquinone as a redox mediator was able to increase the denitrification rate, and was immobilized by entrapment in calcium alginate (CA). The results suggested that the artificial redox mediator anthraquinone was found to be capable of raising about 2-fold denitrification rate, and the stabilized oxidation reduction potential (ORP) values with anthraquinone immobilization beads were lower around 20 mV than the control without anthraquinone immobilization beads. The results of repeated-batch operations shown that anthraquinone immobilization beads appeared to exhibit good reusability. The study explored a great improvement of the redox mediator application and the new bio-treatment concept for the denitrification processes. (C) 2010 Elsevier Ltd. All rights reserved.