Qualitative and quantitative spectrometric evaluation of soluble microbial products formation in aerobic granular sludge system treating nitrate wastewater

Heng Dong; Dong Wei; Jinglin Wei; Fei Han; Tao Yan; Malik Saddam Khan; Bin Du; Qin Wei

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Qualitative and quantitative spectrometric evaluation of soluble microbial products formation in aerobic granular sludge system treating nitrate wastewater

機譯：好氧顆粒污泥系統(tǒng)處理硝酸鹽廢水中可溶性微生物產(chǎn)物形成的定性和定量光譜評價

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In present study, the characteristics of soluble microbial products (SMP) were evaluated in aerobic granular sludge system during denitrification process under different chemical oxygen demanditrogen (C/N) ratios. Batch experiment showed that the effluent nitrate (NO~(3)_(?)–N) concentration were 15.24?±?1.83 and 1.72?±?1.53?mg/L at C/N ratio of 1 and 6, respectively. For the release of SMP, the protein (PN) and polysaccharide contents increased from 1.23?±?0.38 and 7.46?±?1.13?mg/L to 1.80?±?0.76 and 10.53?±?1.24?mg/L with increasing C/N ratios, respectively. Excitation–emission matrix identified four peaks in SMP, including aromatic PN-like, tryptophan PN-like, fulvic acid-like and humic acid-like substances. Fluorescence regional integration suggested that biodegradable PN-like substances occupied the percentage between 53.0 and 61.7% in SMP. Synchronous fluorescence spectra coupled with two-dimensional correlation spectroscopy indicated that the release of SMP fractions in the early stage (0–150?min) changed in the following sequences: PN-like fraction?>?fulvic acid-like fraction. Graphical abstract.

機譯：在本研究中，在不同化學需氧量/氮（C / N）比下，好氧顆粒污泥系統(tǒng)在反硝化過程中的可溶性微生物產(chǎn)物（SMP）的特性進行了評估。批處理實驗表明，在C / N比為1和6時，出水硝酸鹽（NO?（3）_（-）– N）濃度分別為15.24±1.83和1.72±1.53 mg / L。對于SMP的釋放，隨著C / N比的增加，蛋白質(zhì)（PN）和多糖含量分別從1.23±0.38和7.46±1.13 mg / L增加到1.80±0.76和10.53±1.24 mg / L。激發(fā)-發(fā)射矩陣確定了SMP中的四個峰，包括芳族PN類，色氨酸PN類，富里酸類和腐殖酸類物質(zhì)。熒光區(qū)域整合表明，SMP中可生物降解的PN樣物質(zhì)占53.0％至61.7％之間的百分比。同步熒光光譜結(jié)合二維相關(guān)光譜表明，SMP組分在早期階段（0-150分鐘）的釋放按以下順序變化：PN樣組分>富里酸樣組分。圖形概要。

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來源
《Bioprocess and Biosystems Engineering》 |2018年第6期|841-850|共10頁
作者
Heng Dong; Dong Wei; Jinglin Wei; Fei Han; Tao Yan; Malik Saddam Khan; Bin Du; Qin Wei;
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作者單位

School of Resources and Environment, University of Jinan;

School of Resources and Environment, University of Jinan;

School of Resources and Environment, University of Jinan;

School of Resources and Environment, University of Jinan;

School of Resources and Environment, University of Jinan;

Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan;

School of Resources and Environment, University of Jinan;

Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan;

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正文語種 eng
中圖分類
關(guān)鍵詞
Denitrification; Soluble microbial products (SMP); Aerobic granular sludge (AGS); Nitrate (NO3?–N) wastewater; Three-dimensional excitation–emission matrix (3D-EEM);

機譯：反硝化;可溶性微生物產(chǎn)物（SMP）;好氧顆粒污泥（AGS）;硝酸鹽（NO3-–N）廢水;三維激發(fā)-排放矩陣（3D-EEM）;

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3. Effect of acetate and propionate on the production and characterization of soluble microbial products (SMP) in aerobic granular sludge system [J] . Xi Limeng, Liu Dongfang, Huang Wenli Toxicological and Environmental Chemistry . 2018,第1a2期

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4. Aerobic granular sludge in an SBR-system treating wastewater rich in particulate matter [C] . N. Schwarzenbeck, R. Erley, P.A. Wilderer, IWA International Conference on Biofilm Systems . 2004

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5. The kinetics, biochemical patterns, and microbial ecology in multiredox (anoxic, microaerobic, aerobic) activated sludge systems treating BTX containing wastewater. [D] . Ma, Guihua. 1999

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6. A Fluorescence Approach to Assess the Production of Soluble Microbial Products from Aerobic Granular Sludge Under the Stress of 24-Dichlorophenol [O] . Dong Wei, Heng Dong, Na Wu, -1

機譯：評估24-二氯苯酚脅迫下好氧顆粒污泥中可溶性微生物產(chǎn)物生產(chǎn)的熒光方法
7. A Fluorescence Approach to Assess the Production of Soluble Microbial Products from Aerobic Granular Sludge Under the Stress of 2,4-Dichlorophenol [O] . Dong Wei, Heng Dong, Na Wu, 2016

機譯：一種熒光方法，以評估來自2,4-二氯苯酚的應力下的有氧顆粒污泥的可溶性微生物產(chǎn)物的生產(chǎn)

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Qualitative and quantitative spectrometric evaluation of soluble microbial products formation in aerobic granular sludge system treating nitrate wastewater

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