The auto fluorescence characteristics, specific activity, and microbial community structure in batch tests of mono-chicken manure digestion
Autor: | Yong Song, Qigui Niu, Rutao Liu, Dunjie Li, Liuying Song |
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Rok vydání: | 2018 |
Předmět: |
Sewage
020209 energy Microbiota 02 engineering and technology 010501 environmental sciences 01 natural sciences Methane Matrix (chemical analysis) Manure chemistry.chemical_compound Ammonia Kinetics Spectrometry Fluorescence Microbial population biology chemistry Dissolved organic carbon 0202 electrical engineering electronic engineering information engineering Animals Chicken manure Specific activity Food science Digestion Waste Management and Disposal Chickens 0105 earth and related environmental sciences |
Zdroj: | Waste management (New York, N.Y.). 83 |
ISSN: | 1879-2456 |
Popis: | Batch tests inoculated with granular and suspended sludge of mono chicken manure (CM) digestion were conducted. Kinetic analysis showed a maximum bio-CH4 generation (6 mL/gVS/d) at an optimal TS of 10–12%. At a TS of 25%, serious inhibition was found for granular sludge and even greater inhibition for the suspended sludge caused by free ammonia. The auto fluorescence of Excitation–mission matrix with parallel factor analysis (PARAFAC) showed that the dissolved organic matter (DOM) varied between the form C1, C2, C3 and C4. The split component of the SMP-like C2 and protein-like C4 significantly related to the bio-methane production in time series. The canonical correlation analysis (CCA) indicated that ammonia, pH, and TS influenced the PARAFAC component significantly. The aceticlastic methanogens of the genus Methanosaeta and acetogens of the genus Syntrophobacter predominated in the CM sludge. The methanogens and acetogens formed a metabolic cooperation, making the process a stable methane produced activity. |
Databáze: | OpenAIRE |
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