DOI: 10.1016/j.watres.2018.02.047
Scopus记录号: 2-s2.0-85042686305
论文题名: Biorefinery of cellulosic primary sludge towards targeted Short Chain Fatty Acids, phosphorus and methane recovery
作者: Crutchik D. ; Frison N. ; Eusebi A.L. ; Fatone F.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 136 起始页码: 112
结束页码: 119
语种: 英语
英文关键词: Acidogenic fermentation
; Cellulosic primary sludge
; Propionate
; Resource recovery
; Struvite
Scopus关键词: Anaerobic digestion
; Biological water treatment
; Chains
; Fermentation
; Methane
; Molecular biology
; Phosphorus
; Recovery
; Wastewater treatment
; Acidogenic fermentation
; Primary sludge
; Propionate
; Resource recovery
; Struvites
; Fatty acids
; cellulose
; methane
; phosphorus
; polyhydroxyalkanoic acid
; propionic acid
; short chain fatty acid
; struvite
; cellulose
; methane
; phosphorus
; volatile fatty acid
; bacterium
; cellulose
; fatty acid
; fermentation
; hydrolysis
; methane
; optimization
; phosphorus
; sludge
; struvite
; wastewater treatment plant
; anaerobic digestion
; Article
; batch fermentation
; chemical oxygen demand
; degradation
; hydrolysis
; pH
; priority journal
; Propionibacterium acidipropionici
; response surface method
; sludge
; temperature
; waste water treatment plant
; anaerobic growth
; bioreactor
; bioremediation
; chemistry
; fermentation
; isolation and purification
; metabolism
; microbiology
; Propionibacterium
; sewage
; waste water
; Cellulose Derivatives
; Fermentation
; Sludge
; Toilet Papers
; Waste Waters
; Water Treatment
; Propionibacterium
; Anaerobiosis
; Biodegradation, Environmental
; Bioreactors
; Cellulose
; Fatty Acids, Volatile
; Fermentation
; Hydrolysis
; Methane
; Phosphorus
; Propionibacterium
; Sewage
; Waste Water
英文摘要: Cellulose from used toilet paper is a major untapped resource embedded in municipal wastewater which recovery and valorization to valuable products can be optimized. Cellulosic primary sludge (CPS) can be separated by upstream dynamic sieving and anaerobically digested to recover methane as much as 4.02 m3/capita·year. On the other hand, optimal acidogenic fermenting conditions of CPS allows the production of targeted short-chain fatty acids (SCFAs) as much as 2.92 kg COD/capita·year. Here propionate content can be more than 30% and can optimize the enhanced biological phosphorus removal (EBPR) processes or the higher valuable co-polymer of polyhydroxyalkanoates (PHAs). In this work, first a full set of batch assays were used at three different temperatures (37, 55 and 70 °C) and three different initial pH (8, 9 and 10) to identify the best conditions for optimizing both the total SCFAs and propionate content from CPS fermentation. Then, the optimal conditions were applied in long term to a Sequencing Batch Fermentation Reactor where the highest propionate production (100–120 mg COD/g TVSfed·d) was obtained at 37 °C and adjusting the feeding pH at 8. This was attributed to the higher hydrolysis efficiency of the cellulosic materials (up to 44%), which increased the selective growth of Propionibacterium acidopropionici in the fermentation broth up to 34%. At the same time, around 88% of the phosphorus released during the acidogenic fermentation was recovered as much as 0.15 kg of struvite per capita·year. Finally, the potential market value was preliminary estimated for the recovered materials that can triple over the conventional scenario of biogas recovery in existing municipal wastewater treatment plants. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112861
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biotechnology, University of Verona, Verona, Italy; Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, Santiago, Chile; Department of Science and Engineering of Materials, Environment and City Planning, Faculty of Engineering, Polytechnic University of Marche, Ancona, Italy
Recommended Citation:
Crutchik D.,Frison N.,Eusebi A.L.,et al. Biorefinery of cellulosic primary sludge towards targeted Short Chain Fatty Acids, phosphorus and methane recovery[J]. Water Research,2018-01-01,136