海泥细菌电池电催化降解效应——一种海底石油污染生态原位修复绿色新技术

Electric Catalysis Degradation Effect of Microbial Fuel Cell in Marine Sediment:a Novel Green Technology of Ecosystem in-Situ Remediation for Oil Pollutant on Ocean Floor

海底石油污染可导致长期的生态灾难。一般海洋石油污染防治技术无法用于海底环境。文章描述了一种绿色的海底石油污染生态原位修复新技术,利用沉积层生物燃料电池电催化加速降解效应,即利用海底沉积层(海泥)中的多种细菌以石油污染物为营养物,代谢产生的电子被电池正极和负载消耗掉,反过来促进细菌加速降解污染物。该技术既可在海底加速石油污染物降解速率,又可原位产生电能驱动监测仪器工作,还可用于原位监测生态修复进展,故具有重要的应用前景。

Oil pollutant in marine sediment can cause long-term severe ecological disaster and the nowadays common treatment technologies can’t be suitable to ocean floor environment.A novel green ecological recovery technology on ocean floor was described in the paper by utilizing an elec-tric catalysis degradation effect of microbial fuel cell in marine sediment.Its principle is that vari-ous bacteria in sea mud take advantage of oil pollutant as nutrients and metabolize to produce a large amount of electrons and these electrons are exhausted by applied monitor and positive pole in its cell circuit.The novel technology will have important and versatile prospects for its higher degradation rate,higher power output for electric equipment to work for a long time and in situ monitoring of ecosystem recovery.