本文選題：臭氧 + 緩沖溶液�。� 參考：《四川大學(xué)學(xué)報(工程科學(xué)版)》2014年S2期

【摘要】：考察了不同O3通量、不同Br-濃度、HAc-Na Ac和H3PO4-Na H2PO42種緩沖溶液以及不同p H值對O3氧化Br-生成HOBr/OBr-轉(zhuǎn)化率的影響。實(shí)驗(yàn)表明,O3通量對HOBr/OBr-的轉(zhuǎn)化率基本沒有影響;Br-濃度增加,HOBr/OBr-的轉(zhuǎn)化率增加,Br-濃度從0 mg/L增加到1.0 mg/L時,轉(zhuǎn)化率從0增加到60%,Br-濃度繼續(xù)增加HOBr/OBr-轉(zhuǎn)化率基本不再變化;HAc-Na Ac和H3PO4-Na H2PO42種緩沖溶液對HOBr/OBr-的轉(zhuǎn)化率均無顯著影響;p H為3、4時,隨著p H值增加,HOBr/OBr-的轉(zhuǎn)化率增加,當(dāng)p H=4、5、6時,HOBr/OBr-的轉(zhuǎn)化率基本相同,達(dá)到最高的66%,p H為7、8時,隨著p H升高,HOBr/OBr-的轉(zhuǎn)化率明顯下降。
[Abstract]:The effects of different O _ 3 fluxes, different Br-concentrations of HAc-NaAc and H3PO4-Na H2PO42 buffer solutions and different pH values on the conversion of O _ 3 to HOBr-O _ (-) were investigated. The experimental results show that the flux of O _ 3 has no effect on the conversion of HOBr-O _ (-) -O _ (-) when the concentration of Br-O _ (-) increases from 0 mg/L to 1. 0 mg/L, The conversion rate of HAc-NaAc and H3PO4-Na H2PO42 seed buffer solution had no significant effect on the conversion of HOBr-OBr- with the increase of pH value, and the conversion rate of HOBr-OBr- increased with the increase of pH value when the conversion rate increased from 0 to 60% Br-concentration, and the conversion rate of HAc-NaAc and H3PO4-Na H2PO42 seed buffer solution had no significant effect on the conversion rate of HOBr-OBr-, and the conversion rate of HOBr-OBr- increased with the increase of pH value. The conversion rate of HOBr- / OBr- was almost the same when it was 55,6, and reached the highest ratio of 66pH = 7,8. The conversion rate of HOBr- / OBr- decreased obviously with the increase of pH.
【作者單位】： 四川大學(xué)建筑與環(huán)境學(xué)院;彭州市水務(wù)局;
【基金】：教育部創(chuàng)新團(tuán)隊(duì)資助項(xiàng)目(ITR1027)
【分類號】：TU991.2
，

本文編號：1834253