电极生物膜法应用于微污染源水预处理反硝化环节的试验研究

Research on Denitrification in Pretreatment of Lightly Polluted Source Water by Biofilm-Electrode Method

采用电极生物膜法对微污染源水进行脱氮预处理 .该法利用微电解水产生的H+ ,通过电场力吸引作用 ,在穿过阴极板上所挂生物膜的过程中 ,提高了其中的反硝化细菌所需供氢体的浓度 ,进而提高反硝化效率 .研究结果表明 :电极生物膜法相对于相同生物量的单纯生物膜法而言 ,有更高的反硝化效率 ,并能很好控制水中亚硝酸盐氮的生成 .

To increase the efficiency of denitrification, the bio-electrode denitrification is utilized based on the theory of bacteria growing up on the electrode grasp hydrogen ions that come through the biofilm because of the electrolysis. The result shows that the bio-electrode denitrification has higher efficiency than the biological denitrification in removing nitrate-nitrogen, especially in controlling the form of nitrite-nitrogen.