城市内河黑臭水体中溶解性有机物特性  

Characteristics of DOM in the Black Smelly Water of Urban Inland River

作　　者：段文松[1] 许志恒[1] 郝敏 李亚菲 成琼琼 许晓光 DUAN Wensong;XU Zhiheng;HAO Min;LI Yafei;CHENG Qiongqiong;XU Xiaoguang(College of Environmental Science and Engineering,Anhui Normal University,Wuhu 241000,China;School of Environment,Nanjing Normal University,Nanjing 210000,China)

机构地区：[1]安徽师范大学环境科学与工程学院,安徽芜湖241000 [2]南京师范大学环境学院,江苏南京210000

出　　处：《环境科学与技术》2018年第7期14-20,共7页Environmental Science & Technology

基　　金：安徽省教育厅重点项目资助(KJ2017A317);安徽省自然科学基金资助(1608085MB45)

摘　　要：通过超滤膜、XAD系列树脂等方法分析皖江地区典型黑臭水体溶解性有机物特性以及对黑臭水体水质进行监测。结果表明:水体污染十分严重,旱季期,COD达到109.2 mg/L;雨季期,TN达到17.65 mg/L,TP达到2.62 mg/L。旱季期,<4 000 Dalton的溶解性有机物所占比例最大,在20.6%~27.12%之间;雨季期,20 000~30 000 Dalton的溶解性有机物所占比例最大,在20.77%~24.43%之间。旱季期,随着水体流动,亲水性有机物(HPI)从86.74%逐渐减小到61.5%,疏水性酸(HPO-A)从6.44%逐渐增加到28.70%;过渡亲水性酸(TPI-A)中含有较多的非腐殖质,HPO-A中含有较多的腐殖类有机物。雨季期,随着水体流动,HPI从79.87%逐渐增加到86.39%,TPI-A从9.37%逐渐减少到3.68%。无论旱季期,还是雨季期,黑臭水体溶解性有机物主要由亲水性的非腐殖质组成,所占比例在61.5%~86.74%之间;由于雨水的进入,HPI增加的速度越来越快,HPO-A减少的速度越来越快,TPI-A减少的速度越来越慢。The characteristics of dissolved organic matter（DOM） in typical black and odorous water in Wanjiang area were analyzed by means of ultrafiltration membrane and XAD series resin.Monitoring the quality of black and odorous water,results showed that the water pollution was very serious.In the dry season,the content of COD reached 109.2 mg/L.In the rainy season,the content of TN reached 17.65 mg/L and the content of TP reached 2.62 mg/L.During the dry season,the largest proportion of dissolved organic matter was less than 4 000 Dalton between 20.6%～27.12%;during the rainy season,the largest proportion of dissolved organic matter was 20 000～30 000 Dalton between 20.77%～24.43%.During the dry season,the hydrophilic organic matters（HPI） gradually decreased from 86.74% to 61.5% and the hydrophobic acids（HPO-A） gradually increased from 6.44% to 28.70% with the flowing water;the transitional hydrophilic acids（TPI-A） contains more non humic,the HPO-A contains more humic organic matter.During the rainy season,the HPI gradually increased from 79.87% to86.39% and the TPI-A gradually decreased from 9.37% to 3.68% with the flowing water.Regardless of dry season or rainy season,the dissolved organic matter in black and odorous water was mainly composed of hydrophilic and non humic,which is between 61.5%～86.74%.Due to the rain entering,the HPI increased faster,the HPO-A decreased faster,the TPI-A decreased slower.

关 键 词：黑臭水体 分子量 亲疏水性 溶解性有机物 

分 类 号：X824[环境科学与工程—环境工程]