Spectroscopy and Spectral Analysis, Volume. 41, Issue 9, 2839(2021)
Application of Excitation-Emission Matrix (EEM) Fluorescence Combined With Linear SVM in Organic Pollution Monitoring of Water
Figures & Tables(10)
Fig. 3. Correlation between predicted value and chemical analysis results
Table 1. Instruments and analysis methods
View tableView in ArticleTable 1. Instruments and analysis methods
水质指标 仪器(型号) 分析方法 CODCr - HJ 828—2017《水质 化学需氧量的测定 重铬酸盐法》 CODMn - GB 11892—89《水质 高锰酸盐指数的测定》 NH3-N 分光光度计(HACHDR6000) HJ 535—2009《水质 氨氮的测定 纳氏试剂分光光度法》 TP 流动分析仪(SkalarSan++) HJ 670—2013《水质 磷酸盐和总磷的测定 连续流动-钼酸铵分光光度法》 TN 流动分析仪(SkalarSan++) HJ 636—2012《水质 总氮的测定 碱性过硫酸钾消解紫外分光光度法》 BOD5 溶氧仪(YSI5000) HJ 505—2009《水质 五日生化需氧量(BOD5)的测定 稀释与接种法》 pH 便携式pH计YSI pH100A GB 6920—86《水质 pH值的测定 玻璃电极法》 DO/T 便携式溶氧仪YSIPRO20 HJ 506—2009《水质 溶解氧的测定 电化学探头法》
Table 2. Results of chemical analysis
View tableView in ArticleTable 2. Results of chemical analysis
水质指标 最大值/
(mg·L-1)最小值/
(mg·L-1)平均值/
(mg·L-1)样本数 CODCr 255 4 22.3 1 266 CODMn 35.9 1.8 6.4 1 354 NH3-N 69.2 0.04 3.47 1 266 TP 6.64 0.01 0.39 1 266 TN 84.2 0.04 4.79 819 BOD5 122 0.11 6.41 579
Table 3. Water quality classification standard limits (mg·L-1)
View tableView in ArticleTable 3. Water quality classification standard limits (mg·L-1)
水质指标 Ⅲ类 Ⅳ类 Ⅴ类 轻度黑臭 重度黑臭 CODCr 20 30 40 - - CODMn 6.0 10 15 - - NH3-N 1.0 1.5 2.0 8.0 15 TP 0.2 0.3 0.4 - - TN 1.0 1.5 2.0 - - DO 5.0 3.0 3.0 2.0 0.2 BOD5 4.0 6.0 10 - -
Table 4. Four water quality classification methods
View tableView in ArticleTable 4. Four water quality classification methods
等级 方法1 方法2 方法3 方法4 1 非黑臭 优于Ⅴ类 优于Ⅳ类 优于Ⅲ类 2 轻度黑臭 劣Ⅴ类 Ⅴ类 Ⅳ类 3 重度黑臭 轻度黑臭 劣Ⅴ类 Ⅴ类 4 - 重度黑臭 轻度黑臭 劣Ⅴ类 5 - - 重度黑臭 轻度黑臭 6 - - - 重度黑臭
Table 5. Fluorescence regions and components
View tableView in ArticleTable 5. Fluorescence regions and components
荧光区域 成分 荧光峰Ex/Em/nm 参考文献 A 类腐殖酸(humic acid-like) 365/470 [12] B 微生物副产物(microbial byproduct-like) 290~320/380~420 [10] C 类富里酸(fulvic-like) 230~260/400~480 [8] D 游离态类色氨酸(free tryptophan-like) 275~285/320~350 [13] E 游离态类酪氨酸(free tyrosine-like) 270/308 [14] F 类酪氨酸(tyrosine-like) 220~237/280~300 [8] G 类色氨酸(tryptophan-like) 215~237/340~381 [8]
Table 6. Prediction results of models
View tableView in ArticleTable 6. Prediction results of models
水质指标 训练集 测试集 RMSEC/
(mg·L-1)RMSEP/
(mg·L-1)CODCr 0.81 8.53 0.80 8.83 CODMn 0.87 1.23 0.84 1.65 NH3-N 0.88 2.00 0.82 2.63 TP 0.80 0.25 0.73 0.25 TN 0.84 3.19 0.78 3.29 BOD5 0.91 3.00 0.87 3.19
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Yuan DAI, Ji-zheng XIE, Jing YUAN, Wei SHEN, Hong-da GUO, Xiao-ping SUN, Zhi-gang WANG. Application of Excitation-Emission Matrix (EEM) Fluorescence Combined With Linear SVM in Organic Pollution Monitoring of Water[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2839
Paper Information
Category: Research Articles
Received: Jun. 9, 2020
Accepted: --
Published Online: Oct. 29, 2021
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