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- W2361917574 abstract "In this study, a sequencing batch reactor (SBR) was used to investigate the nutrient removal and extracellular polymeric substances (EPS) production by activated sludge with different azo dye concentrations. The results indicated that the chemical oxygen demand (COD), azo dye and nutrient removal efficiencies all decreased with the increase in dye concentration. However, the influence of dye concentration on EPS production showed a different trend. When the dye concentration was 5~40 mg · L-1, EPS concentration increased with increasing dye concentration. However, the EPS concentration decreased when the concentration of influent dye exceeded 40 mg · L-1. Furthermore, azo dye led to more protein production than humus, and the protein concentration showed the same trend with that of total EPS. Polysaccharides was the least fraction in EPS, which was 8 mg · g-1. The spectral information about the chemical compositions of EPS was presented by the three-dimensional excitation-emission matrix (EEM). They were similar in the peak locations, but had different fluorescence intensities. Two major components of EPS were identified as fulvic acid-like at λEx/λEm= 270 nm /410~416 nm and proteins at λEx/λEm=240 nm /370~394 nm." @default.
- W2361917574 created "2016-06-24" @default.
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- W2361917574 date "2013-01-01" @default.
- W2361917574 modified "2023-09-27" @default.
- W2361917574 title "Characteristics of extracellular polymeric substances (EPS) in the azo dye wastewater treated by activated sludge" @default.
- W2361917574 hasPublicationYear "2013" @default.
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