PDF(Pubmed)
Abstract：
Acetonitrile wastewater is difficult to treat due to its high salinity and toxicity to microorganisms. In this paper, a micro electro-activated carbon fiber coupled system (ME-ACF) was established to treat simulated acetonitrile wastewater. In the 200 ml system, the concentration of acetonitrile adsorbed by ACF was 91.3 mg/L, while that of acetonitrile adsorbed by ME-ACF was 150.6 mg/L, and the removal efficiency was increased by 65 % in comparison. The activated carbon fibers before and after the reaction were subjected to a series of characterization, and it was found that the SABET decreased from 1393.48 m2/g to 1114.93 m2/g and 900.23 m2/g, respectively, but the oxygen on the surface of the activated carbon fibers was increased, and the effect of the micro electrolytic system on the activated carbon fibers was then analyzed. The possible reasons for the formation of acetic acid contained in the products were also discussed using DFT simulations. The removal mechanism of acetonitrile by ME-ACF was considered to be electrically enhanced adsorption and electro-catalytic hydrolysis.
摘要：
乙腈废水由于其高盐度和对微生物的毒性而难以处理。在本文中,建立了微电活化碳纤维耦合体系（ME-ACF）处理模拟乙腈废水。在200毫升系统中，ACF吸附的乙腈浓度为91.3mg/L,而ME-ACF吸附的乙腈为150.6mg/L，去除效率提高了65%。对反应前后的活性炭纤维进行了一系列表征,发现SABET从1393.48m2/g下降到1114.93m2/g和900.23m2/g，分别,但是活性炭纤维表面的氧气增加了，然后分析了微电解系统对活性炭纤维的影响。还使用DFT模拟讨论了产物中包含的乙酸形成的可能原因。认为ME-ACF对乙腈的去除机理是电增强吸附和电催化水解。
