生物膜電極法降解水中2-萘酚的影響因素
發(fā)布時間:2018-06-02 17:35
本文選題:生物膜電極法 + 多環(huán)芳烴 ; 參考:《高等學(xué)校化學(xué)學(xué)報》2017年05期
【摘要】:以2-萘酚為目標污染物,在對比電化學(xué)法和微生物法降解效果的基礎(chǔ)上,研究了隔膜式電解體系中基體材料性質(zhì)、電解池隔膜種類、溫度和電流密度對生物膜電極法降解2-萘酚作用效率的影響.結(jié)果表明,生物膜電極法相比傳統(tǒng)的電化學(xué)法和微生物法對2-萘酚類污染物的去除有一定優(yōu)勢,其作用效果與微生物生長狀態(tài)有直接關(guān)系.以碳氈為基體的生物膜電極降解效果起始階段優(yōu)于鈦網(wǎng)基生物膜電極,但一段時間后鈦網(wǎng)基生物膜電極降解性能更穩(wěn)定.陰離子交換隔膜電解池體系對2-萘酚的降解效果優(yōu)于陽離子交換隔膜電解池體系,35℃條件下0.5mA/cm~2電流密度是最佳作用條件.
[Abstract]:Taking 2-naphthol as the target pollutant, on the basis of comparing the degradation effect of electrochemical method and microbial method, the properties of matrix material and the type of membrane of electrolytic cell in diaphragm electrolysis system were studied. Effects of temperature and current density on the degradation efficiency of 2-naphthol by biofilm electrode. The results showed that the biofilm electrode method had some advantages over the traditional electrochemical method and microbial method in removing 2-naphthol pollutants, and the effect of biofilm electrode was directly related to the growth state of microorganisms. The degradation effect of carbon felt based biofilm electrode was better than that of titanium net-based biofilm electrode at the initial stage, but the degradation performance of titanium net-based biofilm electrode was more stable after a period of time. The degradation effect of 2-naphthol in anion exchange membrane electrolytic cell system is better than that in cationic exchange membrane electrolytic cell system at 35 鈩,
本文編號:1969607
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