Production of soluble microbial products in aerobic granular sludge system under the stress of toxic 4-chlorophenol

The purpose of this study was to evaluate the effect of toxic 4-chlorophenol (4-CP) on the production of soluble microbial products (SMP) in an aerobic granular sludge system. Compared with the control experiment, [Formula: see text] removal efficiency generally reduced by 37.90% after the exposure...

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Veröffentlicht in:Environmental technology. - 1993. - 38(2017), 24 vom: 02. Dez., Seite 3192-3200
1. Verfasser: Dong, Heng (VerfasserIn)
Weitere Verfasser: Wei, Dong, Wang, Siyu, Wang, Xiaodong, Yan, Tao, Yan, Liangguo, Du, Bin, Wei, Qin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article 4-chlorophenol Aerobic granular sludge soluble microbial products (SMP) three-dimensional excitation-emission matrix (3D-EEM) two-dimensional correlation spectroscopy (2D-COS) Chlorophenols Waste Water Water Pollutants, Chemical 3DLC36A01X
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520 |a The purpose of this study was to evaluate the effect of toxic 4-chlorophenol (4-CP) on the production of soluble microbial products (SMP) in an aerobic granular sludge system. Compared with the control experiment, [Formula: see text] removal efficiency generally reduced by 37.90% after the exposure of 4-CP of 10 mg L-1, indicating that 4-CP had a toxic effect on the performance of biological nitrification. Meanwhile, the contents of polysaccharides and proteins (PN) of SMP increased from 31.0 ± 0.32 and 0.8 ± 0.12 mg L-1 to 39.0 ± 0.56 and 61.70 ± 0.78 mg L-1, respectively. Specific oxygen uptake rate (SOUR) showed that the values of (SOUR)H, [Formula: see text]and [Formula: see text] reduced by 27%, 48% and 41% in the presence of 4-CP. The characteristic and chemical components of SMP were assessed by using three-dimensional excitation-emission matrix (3D-EEM), synchronous fluorescence spectra, two-dimensional correlation spectroscopy (2D-COS), scanning electron microscope and Fourier transform infrared spectroscopy . 3D-EEM implied that SMP were mainly composed of tryptophan PN-like, aromatic PN-like and humic acid-like substances after 4-CP exposure. Synchronous fluorescence spectra coupled with 2D-COS suggested that SMP samples changed in the following sequences: PN-like substances > humic acid-like substances in the absence of 4-CP, and shorter wavelength > longer wavelength in PN-like substances in the presence of 4-CP 
650 4 |a Journal Article 
650 4 |a 4-chlorophenol 
650 4 |a Aerobic granular sludge 
650 4 |a soluble microbial products (SMP) 
650 4 |a three-dimensional excitation-emission matrix (3D-EEM) 
650 4 |a two-dimensional correlation spectroscopy (2D-COS) 
650 7 |a Chlorophenols  |2 NLM 
650 7 |a Waste Water  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a 4-chlorophenol  |2 NLM 
650 7 |a 3DLC36A01X  |2 NLM 
700 1 |a Wei, Dong  |e verfasserin  |4 aut 
700 1 |a Wang, Siyu  |e verfasserin  |4 aut 
700 1 |a Wang, Xiaodong  |e verfasserin  |4 aut 
700 1 |a Yan, Tao  |e verfasserin  |4 aut 
700 1 |a Yan, Liangguo  |e verfasserin  |4 aut 
700 1 |a Du, Bin  |e verfasserin  |4 aut 
700 1 |a Wei, Qin  |e verfasserin  |4 aut 
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773 1 8 |g volume:38  |g year:2017  |g number:24  |g day:02  |g month:12  |g pages:3192-3200 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2017.1291758  |3 Volltext 
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