Improving biomethane yield by controlling fermentation type of acidogenic phase in two-phase anaerobic co-digestion of food waste and rice straw

Xue, Chuang; Yuan, Hairong; Zou, Dexun; Yan-ping, Liu; Zhu, Baoning; Chufo, Akiber; Jaffar, M.; Li, Xiujin

doi:10.1016/j.cej.2015.03.067

Cited by 149 publications

(39 citation statements)

References 37 publications

(35 reference statements)

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“…When using SS, both the initial and average amounts of biogas generated were at their lowest levels of all the conditions tested (0.04 mL/g VS per·day). This was due to an accumulation of volatile fatty acids, which acidified the medium and inhibited biogas production (Chen et al 2015). The SS after 30 days had a pH of 5.46, which was lower than the pH of the DMS (7.84) and PMS (6.85) after 30 days.…”

Section: Performance Of Anaerobic Digestionmentioning

confidence: 97%

Integrated Methane and Ethanol Production from Livestock Manure and Soybean Straw

Zhu

Dai

et al. 2017

BioResources

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Methane and ethanol were co-produced from different feedstock, including a mixture of dairy manure and soybean straw (DMS), a mixture of pig manure and soybean straw (PMS), and soybean straw alone (SS), after anaerobic digestion times of 30 and 60 days in mesophilic conditions. Digesting DMS for 60 days led to the highest methane yield of 115.3 g/kg dry raw feed; however, the lowest ethanol yield of 88 g/kg dry raw feed was observed. After 30 days, SS yielded the lowest methane levels (45.2 g/kg dry raw feed) but the highest ethanol levels (113.5 g/kg dry raw feed). Analysis of the net energy balance showed that the highest net energy balance, 6549 kJ/kg of dry raw feedstock, was achieved from the digestion of DMS for 60 days. Overall, both the type of feedstock and length of digestion time played important roles in the integrated processing of methane and ethanol from livestock manure and straw.

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Section: Performance Of Anaerobic Digestionmentioning

confidence: 97%

Integrated Methane and Ethanol Production from Livestock Manure and Soybean Straw

Zhu

Dai

et al. 2017

BioResources

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“…Meanwhile, there are about 1.3 million tons of excess sludge (ES) (dry weight) produced every year from wastewater treatment plants (WWTPs) in China, and the cost of treating and disposing ES takes 40-60% of the total operation costs in WWTPs (Yang et al, 2012). The improper dispose of FW and ES could cause many serious environmental problems such as the pollution of water, soil, air, and thus threating to food safety and human health (Chen et al, 2015). Therefore, finding an ecofriendly and economical treatment method of FW and ES is now a critical issue worldwide.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

Guo

Hong

et al. 2016

Bioresource Technology

175

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“…This controlling strategy aimed to produce VFAs mainly in the UASS reactor and produce methane mainly in the AF reactor in two-stage systems, which was proved to achieve more methane and a better process stability by separating the hydrolysisacetogenesis and methanogenesis phases [31]. Nevertheless, methane production could not be avoided in the UASS reactor.…”

Section: Influence Of Olr On Reactor Performancementioning

confidence: 99%

An analysis of single and two stage, mesophilic and thermophilic high rate systems for anaerobic digestion of corn stalk

Meng

Jost

Mumme

et al. 2016

Chemical Engineering Journal

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show abstract

Improving biomethane yield by controlling fermentation type of acidogenic phase in two-phase anaerobic co-digestion of food waste and rice straw

Cited by 149 publications

References 37 publications

Integrated Methane and Ethanol Production from Livestock Manure and Soybean Straw

Integrated Methane and Ethanol Production from Livestock Manure and Soybean Straw

Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

An analysis of single and two stage, mesophilic and thermophilic high rate systems for anaerobic digestion of corn stalk

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