College of Resource and Environmental Engineering, East China University of Science and Technology. P.O. Box 379, Nr. 130, Rd. Meilong, Shanghai 200237, China.
Bioelectrochemistry. 2012 Dec;88:92-6. doi: 10.1016/j.bioelechem.2012.06.005. Epub 2012 Jun 29.
The overall process enhancement by different electrical current application on the biological phosphorus release and uptake have been investigated. Five reactors were constructed for three experiments and activated sludge was used as inoculums. In Exp.1 by comparing the control and the bio-electrochemical reactors, it was found that the overall phosphorus removal efficiency could be enhanced at lower electrical current applications of 5mA and 10mA, but were restrained at higher than 20mA, although 20mA could be a sensitive turning point. Moreover, the electrochemical effects of the cathodic and the anodic reactions on the phosphorus release and uptake, respectively, have been further evaluated separately under an electrical current application of 10mA in Exp.2 and Exp.3, respectively. As observed, both of the biological release and uptake were improved by the cathodic reactions in the cathode reactor, but not by the anodic reactions in the anode reactor, and thus indicated that the cathodic reactions play an important role in the improvement of the biological phosphorus release and uptake.
研究了不同电流应用对生物磷释放和吸收的整体过程增强作用。构建了五个反应器进行了三个实验，并用活性污泥作为接种物。在实验 1 中，通过比较对照和生物电化学反应器，发现较低的电流应用（5mA 和 10mA）可以提高整体磷去除效率，但高于 20mA 时会受到抑制，尽管 20mA 可能是一个敏感的转折点。此外，在实验 2 和实验 3 中，分别在电流应用为 10mA 的情况下，进一步评估了阴极和阳极反应对磷释放和吸收的电化学效应。如观察到的，阴极反应在阴极反应器中均改善了生物释放和吸收，但阳极反应在阳极反应器中没有改善，这表明阴极反应在改善生物磷释放和吸收方面起着重要作用。
