Effect of inoculum origin and substrate-inoculum ratio to enhance the anaerobic digestion of organic fraction municipal solid waste (OFMSW)

被引：29
|
作者：
Demichelis, F. [1 ]
Tommasi, T. [1 ]
Deorsola, F. A. [1 ]
Marchisio, D. [1 ]
Fino, D. [1 ]
机构：
[1] Politecn Torino, Dept Appl Sci & Technol DISAT, Corso Duca Abruzzi 24, I-10129 Turin, Italy
来源：
JOURNAL OF CLEANER PRODUCTION | 2022年 / 351卷
关键词：
Anaerobic digestion; Inoculum origins; Substrate inoculum ratio; Inoculum incubation; Kinetic evaluation; METHANE POTENTIAL BMP; CO-DIGESTION; MICROBIAL COMMUNITY; BIOGAS PRODUCTION; CHICKEN MANURE; FOOD WASTE; ENERGY; PREINCUBATION; PRETREATMENTS; CROPS;
D O I：
10.1016/j.jclepro.2022.131539
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study evaluated the key role of inoculum in mesophilic anaerobic digestion (AD) of Organic Fraction of Municipal Solid Waste. The effect of two different inocula, the mesophilic digestate of wastewater activated sludge (WAS) and the mesophilic digestate of cow-agriculture sludge (CAS), at three different substrate: inoculum ratios (1:2, 1:1 and 2:1) at three different incubation times (0, 5 and 10 d) were studied in batch feeding reactor for a total of 18 AD configurations. The AD configurations were study through specific biogas and methane productions, first order disintegration kinetics, Gompertz modified study and energy sustainable index. A multi criteria decision aid outranked the 18 AD configurations tested. The study proved that the AD performed with inoculum CAS incubated for 10 d at 2:1 substrate inoculum ratio reached the highest biogas yield and methene content equal to 997.81 NL/kgVS and 70.00% v/v.
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页数：15
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