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Anaerobic co-digestion of various organic wastes: Kinetic modeling and synergistic impact evaluation

被引：56
|
作者：
Karki, Renisha [1 ]
Chuenchart, Wachiranon [2 ]
Surendra, K. C. [1 ,3 ]
Sung, Shihwu [4 ]
Raskin, Lutgarde [5 ]
Khanal, Samir Kumar [1 ,2 ]
机构：
[1] Univ Hawaii Manoa, Dept Mol Biosci & Bioengn, 1955 East West Rd, Honolulu, HI 96822 USA
[2] Univ Hawaii Manoa, Dept Civil & Environm Engn, 2540 Dole St, Honolulu, HI 96822 USA
[3] Global Inst Interdisciplinary Studies, Kathmandu 44600, Nepal
[4] Univ Hawaii Hilo, Coll Agr Forestry & Nat Resource Management CAFNR, 200 W Kawili St, Hilo, HI 96720 USA
[5] Univ Michigan, Dept Civil & Environm Engn, 1351 Beal Ave,107 EWRE Bldg, Ann Arbor, MI 48109 USA
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 343卷
基金：
美国农业部;
关键词：
Anaerobic co-digestion; Biochemical methane potential; Co-digestion performance index; Kinetic modeling; Synergistic effect; FOOD WASTE; BIOGAS PRODUCTION; DAIRY MANURE; PIG MANURE; BATCH; PARAMETERS; SLUDGE;
D O I：
10.1016/j.biortech.2021.126063
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Anaerobic mono- and co-digestion of coffee pulp (CP), cattle manure (CM), food waste (FW) and dewatered sewage sludge (DSS), were assessed using biochemical methane potential tests. The effects of two different inocula, anaerobically digested cattle manure (ADCM) and anaerobically digested waste activated sludge (ADWAS), and five different co-feedstock ratios for CP:CM and FW:DSS (1:0, 4:1, 2:1, 4:3, and 0:1) on specific methane yields were also evaluated. Mono-digestions of both CP and FW yielded the highest methane yield compared to the co-digestion ratios examined. Furthermore, no synergistic or antagonistic effect was observed for any of the co-digestion ratios tested. Nine different kinetic models (five conventional mono-digestion models and four co-digestion models) were compared and evaluated for both mono- and co-digestion studies. For CP:CM, cone and modified Gompertz with second order equation models were the best-fit for mono- and co-digestion systems, respectively, while for FW:DSS, superimposed model showed the best-fit for all systems.
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页数：12
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