【摘要】：基于切向流超濾系統(tǒng)及三維熒光光譜技術(shù),對(duì)黃浦江流域典型污水(即生活污水及農(nóng)業(yè)污水)中的膠體進(jìn)行粒徑分級(jí)及三維熒光光譜特性分析.結(jié)果表明,所選水樣的膠體質(zhì)量濃度及膠體態(tài)有機(jī)碳質(zhì)量濃度分別為9.60~32.50 mg·L~(-1)和0.03~6.25 mg·L~(-1),二者均隨粒徑的增加而呈遞增趨勢(shì).不同粒徑分級(jí)膠體的三維熒光圖譜表現(xiàn)為類蛋白熒光峰(峰D和峰T)及類腐殖質(zhì)熒光峰(峰C和峰A)這4個(gè)熒光峰,其中類蛋白熒光峰主要存在于M_r1×10~3~5×10~3分級(jí)膠體中,類腐殖質(zhì)熒光峰主要存在于M_r10×10~3~300×10~3分級(jí)膠體中.同時(shí),通過表征膠體熒光光譜特性的熒光指數(shù),包括FI值、腐殖化指數(shù)HIX及生源指數(shù)BIX,分析了所選膠體的來源及光譜特性.結(jié)果表明,小粒徑膠體主要為陸源來源,芳香性及腐殖化程度較高;而大粒徑膠體自生源比重大,類蛋白物質(zhì)是其主要成分.
[Abstract]:Based on tangential flow ultrafiltration system and three dimensional fluorescence spectroscopy, the particle size classification and three dimensional fluorescence spectrum characteristics of colloids in typical wastewater (i.e. domestic sewage and agricultural sewage) in Huangpu River Basin were analyzed. The results showed that the colloidal concentration and colloidal organic carbon concentration of the selected water samples were 9.60 ~ (32. 50) mg / L ~ (-1) and 0.03 ~ 3 ~ (6. 25) mg / L ~ (-1) respectively, both of which showed an increasing trend with the increase of particle size. The three dimensional fluorescence spectra of colloids with different particle sizes showed four fluorescence peaks of protein-like fluorescence peak (peak D and peak T) and humus-like fluorescence peak (peak C and peak A). The fluorescence peaks of protein-like proteins mainly existed in M_r1 脳 10 ~ (3) ~ (3) ~ 5 脳 10 ~ (-3) graded colloids. The fluorescence peak of humus-like substance mainly exists in the M_r10 脳 10 ~ (3) ~ (3) ~ (3) 脳 10 ~ (3) colloid. At the same time, the source and spectral characteristics of the colloid were analyzed by means of fluorescence index, including fi value, humification index (HIX) and biogenic index (BIX). The results showed that the small size colloids were mainly terrestrial origin, and the aromaticity and humification degree were higher, while the large particle size colloid had a large autogenic specific gravity, and the protein-like substance was the main component of the colloid.
【作者單位】： 江西師范大學(xué)地理與環(huán)境學(xué)院鄱陽湖濕地與流域研究教育部重點(diǎn)實(shí)驗(yàn)室;華東師范大學(xué)河口海岸學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;華東師范大學(xué)地理科學(xué)學(xué)院教育部地理信息科學(xué)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41601523,41601521,41271473) 江西省自然科學(xué)基金項(xiàng)目(20161BAB213079,20161BAB213077) 鄱陽湖濕地與流域研究教育部重點(diǎn)實(shí)驗(yàn)室開放基金項(xiàng)目(PK2015006,PK2016006) 江西省教育廳科技計(jì)劃項(xiàng)目(GJJ150307,GJJ160320) 江西師范大學(xué)博士啟動(dòng)基金項(xiàng)目
【分類號(hào)】：X703

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中國(guó)期刊全文數(shù)據(jù)庫 前8條

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本文編號(hào)：2164234