Hydrogen production from acidogenic food waste fermentation using untreated inoculum: Effect of substrate concentrations

Pu, Yong; Tang, Jialing; Wang, Xiaochang C.; Hu, Yisong; Huang, Jin; Zeng, Yonggang; Ngo, Huu Hao; Li, Yu-You

doi:10.1016/j.ijhydene.2019.08.230

Cited by 48 publications

(14 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Algapani et al established continuous H 2 (4%) and CH 4 (55%) production from canteen FW in a continuous two‐stage system (Algapani, Qiao, di Pumpo, et al, 2018; Algapani, Qiao, Ricci, et al, 2018). Pu et al recorded a high hydrogen yield (75.3 ml/g‐VS) from heat‐treated food in acidogenic fermentation (Pu et al, 2019). Hasan et al recorded a hydrogen production rate of 51.9 ml/L day by utilizing using food leftovers from restaurants as the feedstock in a continuous flow lab‐scale up‐flow anaerobic biofilter reactor (Hassan, Hemdan, & El‐Gohary, 2020).…”

Section: Biohydrogen Production From Fwmentioning

confidence: 99%

Present scenario and future scope of food waste to biofuel production

Dhiman

Mukherjee

2020

J Food Process Engineering

View full text Add to dashboard Cite

Food waste is the outcome of different food processing practices that have not been reused and are disposed of as waste. Food wastes are rich in a wide variety of organic constituents including starches, proteins, oils, fats, phosphates, nutrients, amino acids, and natural acids. Food waste is a zero‐value and nonconsumable resource. In this context, the valorization of food waste to different sorts of biofuels, for example, biodiesel, bioethanol, biohydrogen, bio‐oil, biochar, and biomethane by employing well‐structured and efficient valorization technologies can be an attractive and viable approach to counter the current global energy crisis and in establishing a sustainable bioeconomy. This type of food waste management not only resolves the serious pollution problem but also helps to reduce the dependency of the energy sector on fossil fuels. This review discusses the characteristics of food waste, common strategies for food waste management, food waste as a feedstock, biofuels as a renewable energy source, valorization of food waste to various types of biofuels, microbes‐assisted valorization of food waste, biofuels and bioeconomy, and future scope and challenges in the valorization of food waste to biofuels.

show abstract

Section: Biohydrogen Production From Fwmentioning

confidence: 99%

Present scenario and future scope of food waste to biofuel production

Dhiman

Mukherjee

2020

J Food Process Engineering

View full text Add to dashboard Cite

show abstract

“…Over the last decade, an increasing number of biogas plants have been constructed to tackle an overabundance of manure from industrial livestock and poultry farms in China and other countries (Cao et al 2016). Biogas slurry, a by-product of biogas plants, contains an abundance of organic matter, nutrients, some bioactive substances and large amounts of water and can meet the needs of paddy elds both for organic fertilizer and irrigation water (Pu et al 2019). Hence, biogas slurry is considered as a cost-effective substitute for chemical fertilizer (Cheng et al 2017;Xu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Changes in rhizosphere microbiomes of field-grown rice in response to biogas slurry application

Yang

Sheng

et al. 2022

Preprint

View full text Add to dashboard Cite

Biogas slurry (BS) is widely used as a liquid fertilizer in paddy fields. A growing body of evidence shows that rhizosphere microbiota is important for plant growth and reproduction. However, the dynamic responses of rhizosphere microbiomes of field-grown rice to BS application still remain unknown. In this study, a field experiment was conducted to further understand the impacts of BS fertilizer (BCF) on the dynamic changes of rhizosphere microbiota throughout the life cycle of rice with conventional chemical fertilizer (CF) treatment as control. The results demonstrated that BS could increase the N-, P- and C- level in paddy water as well as rhizospheric microbial abundance and diversity of paddy fields compared with control. In particular, the phosphate-solubilizing- and cellulose-decomposition-related bacteria (e.g. Bacillus) and fungi (e.g. Mortierella) were more abundant in the rhizosphere of BCF than those of CF. Moreover, these above-mentioned microbes increased markedly at the reproductive stages compared with those at vegetative stages in BCF, which could promote rice to obtain available nutrient (phosphorus and carbon) at low fertility input stages (the reproductive stages). It was noted that denitrifying-related bacteria (e.g. Steroidobacteraceae) decreased and dissimilatory nitrate reduction to ammonia (DNRA) -related bacteria increased generally at the reproductive stages, which could reduce N-loss and help to N-fixation. Furthermore, correlation network showed that nutrient-cycles-related microbes were more closely interconnected in BCF than control. These observations demonstrated the application of BS could regulate root-related microbiomes towards a beneficial fertilizer use for rice production.

show abstract

“…Food waste (FW) is a common, widespread organic waste that is bound to have negative environmental impacts (odor, pathogens, toxicity, etc.). And it is generated in immense quantities, being estimating that up to 1.3 billion tons annually in the world [1,2]. In addition, FW is rich in easily biodegradable organic matters, high in moisture content and perishable.…”

Section: Introductionmentioning

confidence: 99%

Trichloromethane concentration pretreatment of inoculum for enhancing biohydrogen yield by food waste via two-stage batch fermentation

Xue

WANG

2022

Preprint

View full text Add to dashboard Cite

Trichloromethane is often used as a chemical inhibitor to pretreat the inoculum to improve hydrogen yield in dark fermentation. In this study, five different doses of trichloromethane were used for methanogenic inhibition of methanogenic microbial community operating in stable (inoculum A) and anaerobic microbial community in natural environment (inoculum B). High concentrations of trichloromethane inhibited the activity of microbial community in the system and hindered the production of hydrogen and methane. At the same time, it would greatly reduce the pH, causing it to fall below the threshold of suitable hydrogen yield. In turn, ethanol-type fermentation was triggered, and the ethanol content of the system increased with increasing concentration of trichloromethane addition. The comprehensive assessment concluded that a 0.10% (v/v) trichloromethane concentration gave the best hydrogen yield performance in both inoculums. However, anaerobic microbial community in natural environment was able to produce hydrogen more efficiently than the operationally stable methanogenic microbial community. The highest cumulative hydrogen yield was 111.16, 34.36, and 72.76 mL/g VS in phase Ⅰ, phase Ⅱ, and the whole stage, respectively. In addition, the butyrate production in the reactor at this concentration was considerable, with an average yield of 21.3 g/L.

show abstract

Hydrogen production from acidogenic food waste fermentation using untreated inoculum: Effect of substrate concentrations

Abstract: Biohydrogen fermentation was established using the untreated inoculum.High substrate concentration is adverse for hydrogen fermentation.Heat-treated FW was preferable for hydrogen production than fresh FW.Lactate-type biohydrogen fermentation was observed using the fresh FW.

Cited by 48 publications

References 50 publications

Present scenario and future scope of food waste to biofuel production

Present scenario and future scope of food waste to biofuel production

Changes in rhizosphere microbiomes of field-grown rice in response to biogas slurry application

Trichloromethane concentration pretreatment of inoculum for enhancing biohydrogen yield by food waste via two-stage batch fermentation

Contact Info

Product

Resources

About