The influence of different pretreatment methods on biogas production from Jatropha curcas oil cake

Jabłoński, Sławomir; Kułażyński, Marek; Sikora, Ilona; Łukaszewicz, Marcin

doi:10.1016/j.jenvman.2016.06.001

Cited by 27 publications

(12 citation statements)

References 18 publications

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“…Detoxification and anaerobic digestion (AD) were identified as promising pretreatment methods for utilizing JPC for animal feed and organic fertilizer, respectively. With regard to this, studies have tried to investigate the biochemical methane potential (BMP) of JPC [17,18]. However, JPC contains a considerable amount of seed husks, which are enriched with lignocellulosic materials.…”

Section: Introductionmentioning

confidence: 99%

Alkaline and co-digestion pretreatments: process optimization for enhancing the methane yield of Jatropha press cake

Ewunie

Morken

Yigezu

2020

Biomass Conv. Bioref.

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Oil extraction and biodiesel production process produce a massive amount of by-products like Jatropha press cake (JPC) and crude glycerol (CG), which could be used as a potential substrate for methane production. However, the higher lignocellulosic and nitrogen content in the JPC act as a recalcitrant and inhibitor, respectivly, for microbes that are involved in the anaerobic digestion (AD) process. Therefore, the present study aimed to enhance the methane yield of JPC by optimizing the alkaline pretreatment and co-digestion process conditions. The effects of NaOH concentration, incubation temperature, and retention time on methane and soluble chemical oxygen demand (sCOD) yields were evaluated and modeled by employing a response surface methodology coupled with central composite design (RSM-CCD). Moreover, a series of batch experiments with various feedstock concentrations (FCs) were tested to investigate the methane yield of JPC when co-digested with CG at different levels. The methane yields of all pretreated samples were significantly higher when compared with these of the untreated JPC. Pretreating the JPC using 7.32% NaOH at 35.86 °C for 54.05 h was the optimum conditions for maximum methane increment of 40.23% (353.90 mL g−1 VS), while co-digesting 2% CG with JPC at 2 g VS L−1 FC enhanced the methane yield by 28.9% (325.47 mL g−1 VS). Thus, the methane yield of JPC was effectively increased by alkaline pretreatment and co-digesting with CG. However, the alkaline pretreatment was relatively more effective compared with the co-digestion process.

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Section: Introductionmentioning

confidence: 99%

Alkaline and co-digestion pretreatments: process optimization for enhancing the methane yield of Jatropha press cake

Ewunie

Morken

Yigezu

2020

Biomass Conv. Bioref.

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“…The fastest fermentation rate was observed when oil cake was incubated in 0.1 mol•L −1 NaCl at 20 • C. Biogas production rate went up to 0.0015 m 3 /kg per day [61]. Temperature is important to monitor, because it affects all biochemical processes.…”

Section: Methodsmentioning

confidence: 99%

Using Biofuels for Highly Renewable Electricity Systems: A Case Study of the Jatropha curcas

2019

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Recent movements for the decarbonization of the electricity sector have become a priority for many countries around the world and will inevitably lead to the sharp decline of fossil-fuel-based energy. Energy from fossil fuels is to be replaced by renewable energy sources (RES), although the transition will neither be cheap nor smooth. One sustainable and environmentally friendly alternative to fossil fuels and which will take a considerable share in the increasing supply of renewable energy resources is biofuels. There are various types of biofuels used in practice; however, biodiesels represent one of the most popular and widespread ones. This paper focuses as a case study on the byproducts of Jatropha curcas, a crop and a plant that is already used for biofuel production and which is subsequently employed in electricity generation in Jatropha curcas producing regions. This paper identifies the limitations and prospects of Jatropha curcas utilization. Also, Jatropha curcas is compared to other materials suitable for biomass generation. An economic analysis for a 2 MW biofuel powerplant was conducted incorporating various market-related risks. The study shows that at current prices, net profitability can be achieved using Jatropha curcas byproducts for producing electricity.

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“…Within 5 days, the reactor started producing 20 m 3 biogas per day. Jablonski et al (2017) studied thermal and acidic pre-treatment of jatropha cake to enhance the efficiency of anaerobic digestion [ 91 ]. They hypothesised that pre-treatments could deactivate protease inhibitors and partially hydrolyse phytate.…”

Section: Biogas Productions From Non-edible Oil Cakesmentioning

confidence: 99%

A critical review on biogas production from edible and non-edible oil cakes

Mohanty

Rout

Dubey

et al. 2021

Biomass Conv. Bioref.

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The circular economy is at the core of sustainable development. The generation of biogas from the massive quantity of agricultural waste biomass is one of the critical drivers of the circular economy. Biogas has enormous renewable energy potential and has multitudes of applications in today’s energy-intensive society. Oil cakes, a known Agri-waste, are the by-product of oil processing, and are rich in nutrients. The edible oil cakes mostly have been used as a cattle feed; however, non-edible oil cakes do not find many applications. Their production is continuously escalating as non-edible oils are increasingly used in biodiesel production. Recently, there is a lot of emphasis on biogas production from these oil cakes. This paper reviews in detail biogas production from both edible and non-edible oil cakes. Chemical composition and various other applications of the cakes are also reviewed in brief. The survey illustrates that multiple parameters such as inoculum sources, co-digestion and reactor design affect the biogas production. All those factors, along with biogas upgrading and the economy of the process, are reviewed. Finally, future research opportunities are suggested to improve the viability of the biogas production from oil cakes.

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The influence of different pretreatment methods on biogas production from Jatropha curcas oil cake

Cited by 27 publications

References 18 publications

Alkaline and co-digestion pretreatments: process optimization for enhancing the methane yield of Jatropha press cake

Alkaline and co-digestion pretreatments: process optimization for enhancing the methane yield of Jatropha press cake

Using Biofuels for Highly Renewable Electricity Systems: A Case Study of the Jatropha curcas

A critical review on biogas production from edible and non-edible oil cakes

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