微生物电解池处理PTA废水及同步产氢的研究

SIMULTANEOUS TREATMENT OF PTA WASTEWATER AND PRODUCTION OF HYDROGEN USING MICROBIAL ELECTROLYSIS CELL

将微生物电解池应用于PTA废水的处理,系统研究PTA降解程度及同步产氢情况,并通过伏安曲线对电子传递机制进行研究。实验结果表明,微生物电解池可实现PTA废水的同步处理及产氢,当底物COD浓度为1000mg/L时,在外加电压0.900V的条件下,微生物电解池运行43h后,TA降解率和COD去除率分别为92.0%和80.3%,氢气产率为0.04m3/(m3·d),库仑效率为29%。

The microbial electrolytic cell was used in the treatment of PTA wastewater, and the degradation of PTA and simultaneous production of hydrogen were systematically studied. The electron transport mechanism was studied by cyclic voltammetry curve. The experimental results showed that PTA wastewater treatment and hydrogen production can be achieved simultaneously using microbial electrolysis cell when the COD concentration of substrate is 1000mg/L with an applied voltage of 0. 900V and 43h operation of microbial electrolysis cell. TA degradation rate and COD removal rate are 92.0% and 80. 3%, respectively, hydrogen yield is 0. 04m^3/（ m^·d）, coulombic efficiency is 29%.