生态与农村环境学报2017，Vol.33Issue(12)：1146-1152,7.DOI:10.11934/j.issn.1673-4831.2017.12.012
pH值对AOA-SBR处理污水过程中COD三维荧光法表征的影响
Effect of pH on Characterization of COD With Three-Dimensional Fluorescence in the Process of AOA-SBR Treating Wastewater
摘要
Abstract
To explore effect of pH on rapid characterization of COD in the treatment of urban sewage using AOA-SBR technology, the three-dimensional fluorescent spectrum method was used to investigate relations between COD and fluores-cence intensity of DOM, and further effect of pH on this relationship. Analyses of the three-dimensional fluorescence spec-tra obtained and their relationships with COD show that the DOM in the sewage under treatment contained the following three substances:tryptophan low in excitation wavelength, tryptophan high in excitation wavelength and humic acid. The two types of tryptophan and their sum in fluorescent intensity was highly and positively related to COD with R2 being 0. 9823, 0. 9774 and 0. 9809, respectively, turning to be 0. 8711, 0. 8567 and 0. 8733 respectively, when pH was at 4, varying in the range of 0. 9262-0. 9834, 0. 9693-0. 9827 and 0. 9521-0. 9888 respectively, when pH varied be-tween 6 and 8, and fluctuating in the range of 0. 8457-0. 7490, 0. 9008-0. 8699 and 0. 8895-0. 8376, respectively, along a declining trend with pH rising on above 8. Then it could be concluded that when pH was 6-8, DOM and COD con-centrations are closely related in fluorescence intensity.关键词
三维荧光光谱/溶解性有机物/pH值/荧光强度/CODKey words
three-dimensional fluorescence spectrum/dissolved organic matter/pH/fluorescence intensity/COD分类
资源环境引用本文复制引用
黄健,吴兆亮,张华,张勇,张雄,于孝坤,凌玲..pH值对AOA-SBR处理污水过程中COD三维荧光法表征的影响[J].生态与农村环境学报,2017,33(12):1146-1152,7.基金项目
安徽省高校优秀青年人才支持计划重点项目( gxyqZD2017059) （ gxyqZD2017059）
安徽省高校优秀青年骨干人才国内外访学研修项目(gxfx2017054) （gxfx2017054）
安徽省高校自然科学研究项目(KJ2016A817) （KJ2016A817）
国家水体污染控制与治理科技重大专项(2014ZX07405-003-03) （2014ZX07405-003-03）
