本文選題：放電 + 納米型催化劑�。� 參考：《高電壓技術(shù)》2017年08期

【摘要】：工業(yè)廢水排放量逐年增多,其中含酚廢水危害大,處理困難。為此,采用高壓脈沖放電協(xié)同納米型催化劑TiO_2和Fe-TiO_2對苯酚進(jìn)行了降解處理實驗,考察了催化劑的焙燒溫度、投加質(zhì)量對苯酚降解率的影響,并分析了苯酚中間產(chǎn)物質(zhì)量濃度、溶液礦化率和總有機(jī)碳(TOC)質(zhì)量濃度。結(jié)果顯示:焙燒溫度和投加質(zhì)量對苯酚降解率有一定的影響,隨著焙燒溫度的升高、投加質(zhì)量的增加,苯酚降解率均是先升高后降低;與單獨脈沖放電相比,協(xié)同催化劑放電有效提高了苯酚降解率,且協(xié)同F(xiàn)e-TiO_2催化劑的效果最佳;當(dāng)Fe-TiO_2催化劑的投加質(zhì)量為0.05 g,焙燒溫度為450℃,放電時間為140 min時,苯酚降解率最高,達(dá)98.75%;中間產(chǎn)物質(zhì)量濃度隨放電時間的變化而呈現(xiàn)先增大后減小的趨勢,相比單獨脈沖放電,在協(xié)同TiO_2放電時間內(nèi)苯二酚不再間斷出現(xiàn),且其他3種物質(zhì)峰值質(zhì)量濃度均有所提高,達(dá)到峰值質(zhì)量濃度后的下降速度更快;相比投加TiO_2催化劑,在協(xié)同F(xiàn)e-TiO_2放電時間內(nèi)苯二酚完全降解,且對苯酚、對苯醌的峰值質(zhì)量濃度均有所降低;投加催化劑后,礦化率提升幅度較大,相比單獨脈沖放電,協(xié)同F(xiàn)e-TiO_2放電時間為140 min時,溶液礦化率提高了1倍以上。研究結(jié)果可為脈沖放電協(xié)同催化劑技術(shù)處理苯酚廢液提供一定的理論支撐。
[Abstract]:The discharge of industrial wastewater is increasing year by year, among which phenolic wastewater is harmful and difficult to treat. In this paper, the degradation experiments of phenol were carried out by using high pressure pulse discharge combined with nano-catalyst TiO2 and Fe-TiOs2. The effects of calcination temperature and adding quality on the degradation rate of phenol were investigated, and the concentration of intermediate product of phenol was analyzed. Solution mineralization rate and total organic carbon (TOC) mass concentration. The results showed that the degradation rate of phenol was affected by calcination temperature and adding quality. With the increase of calcination temperature, the degradation rate of phenol increased first and then decreased, and compared with the pulse discharge alone, the degradation rate of phenol increased firstly and then decreased with the increase of roasting temperature and adding quality. The synergistic catalyst discharge can effectively increase the phenol degradation rate, and the synergistic Fe-TiO-2 catalyst is the best, when the mass of Fe-TiO2 catalyst is 0.05 g, the calcination temperature is 450 鈩，

本文編號：2113994