Methane Production from Alginate-Extracted and Non-Extracted Waste of Laminaria japonica: Anaerobic Mono- and Synergetic Co-Digestion Effects on Yield

Osman, Mohammed M.M.; Shao, Xin; De-ling, Zhao; Basheer, Amir K.; Jin, Hongmei; Zhang, Yingpeng

doi:10.3390/su11051269

Cited by 8 publications

(6 citation statements)

References 80 publications

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“…The results showed that co-digestion of AEWLJ/RS at 67% mixing ratio produced the highest biogas yield of 247 mL/g VS, being 36% higher than the AEWLJ alone. The synergetic effect improved the total methane yield up to 78% and 88% for combinations of AEWLJ/RS and NAEWLJ/RS, respectively [93].…”

Section: Microbial Community Structure and Synergymentioning

confidence: 96%

A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration

et al. 2019

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Recent studies have shown that anaerobic co-digestion (AnCoD) is superior to conventional anaerobic digestion (AD). The benefits of enhanced bioenergy production and solids reduction using co-substrates have attracted researchers to study the co-digestion technology and to better understand the effect of multi substrates on digester performance. This review will discuss the results of such studies with the main focus on: (1) generally the advantages of co-digestion over mono-digestion in terms of system stability, bioenergy, and solids reduction; (2) microbial consortia diversity and their synergistic impact on biogas improvement; (3) the effect of digester mode, i.e., multi-stage versus single stage digestion on AnCoD. It is essential to note that the studies reported improvement in the synergy and diverse microbial consortia when using co-digestion technologies, in addition to higher biomethane yield when using two-stage mode. A good example would be the co-digestion of biodiesel waste and glycerin with municipal waste sludge in a two-stage reactor resulting in 100% increase of biogas and 120% increase in the methane content of the produced biogas with microbial population dominated by Methanosaeta and Methanomicrobium.

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Section: Microbial Community Structure and Synergymentioning

confidence: 96%

A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration

et al. 2019

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“…[32,[43][44][45][46] Government laws and subsidies Creation of regulation and incentive laws for the use of biodigesters [33,47] Waste reuse Reuse of residues by means of the anaerobic digestion that takes place inside the biodigester [31,43,[48][49][50] Availability of large quantities of raw materials Large amounts of animal and vegetable waste generation can be used to supply the biodigesters. [31,38,[50][51][52] Nearby production and consumption…”

Section: Facilitators Description Referencesmentioning

confidence: 99%

How Can Biodigesters Help Drive the Circular Economy? An Analysis Based on the SWOT Matrix and Case Studies

et al. 2022

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The use of biodigesters and the circular economy (CE) has been gaining attention in recent years. Both biodigesters and CE have the potential to minimize negative impacts—not only environmental, but also economic and social. However, little attention has been paid to the relationship between biodigesters and CE. Therefore, the objective of this paper is to identify and analyze the implications of the use of biodigesters in the light of a CE concept. To do this, a SWOT matrix was developed based on the opinion of experts and two case studies were conducted in companies operating in different sectors in Brazil. The results showed that the use of biodigesters can drive CE through biogas, which is a renewable energy source, closing the cycle of organic materials, increasing the economic power of companies and small producers, improving basic sanitation in remote areas, and stimulating industrial symbiosis. However, this study identified barriers in the use of biodigesters in the context of CE, such as lack of government incentives and composting being shown to be more cost-effective than the use of biodigesters for the treatment of solid waste.

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“…Both were higher than respective control digesters (control digester A = 1.91% and control digester A = 20.61%). Osman et al [52] in their study for evaluation of methane yield from different ratios of alginate-extracted (AEWLJ) and non-extracted (NAEWLJ) waste of Laminaria japonica in mono and co-digestion with rice straw (RS) used the modified Gompertz equation. Syaichurrozi [51] reported the highest biogas yield of 113.92 ± 6.90 mL/g VS in co-digestion of aquatic weed Salvinia molesta (SM) and rice straw (RS) at the mass ratio of 40:60.…”

Section: Kinetics Of Biogas Productionmentioning

confidence: 99%

Co-digestion of euryhaline microalgae Scenedesmus sp. MKB. with paddy straw for biogas production

Sharma

Gupta

Singh

2022

Environmental Engineering Research

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Biogas is a clean and renewable biofuel source produced by anaerobic digestion of organic matter and can replace conventional sources of energy such as fossil fuels. The present study was undertaken to assess biogas production from microalgae Scenedesmus sp. MKB. (MN796425) which was isolated from the saline water collected from the waterlogged area of Southwest Punjab. The biogas production for different concentrations of microalgal biomass, microalgal filtrate, and paddy straw was observed in laboratory conditions and the performance of microalgae was also studied in field conditions. The co-digestion of microalgal biomass and paddy straw under laboratory conditions revealed maximum production of 60.18 L when both were co-digested as compared to 48.56 L during the digestion of paddy straw alone. Kinetics of biogas production studied by modified Gompertz equation revealed that the highest biogas production potential (P) of 68.58 mLg-1 volatile solids at the biogas production rate (Rm) of 1.34 mLg-1d-1 with lag phase (λ) of 0.66 days. Microalgae biomass production under field conditions was carried out in an open raceway pond of 200 L capacity and later biomass was digested in 1 m3 digester that showed cumulative biogas production of 2,407 L and it was 20.44% more than control.

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Methane Production from Alginate-Extracted and Non-Extracted Waste of Laminaria japonica: Anaerobic Mono- and Synergetic Co-Digestion Effects on Yield

Cited by 8 publications

References 80 publications

A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration

A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration

How Can Biodigesters Help Drive the Circular Economy? An Analysis Based on the SWOT Matrix and Case Studies

Co-digestion of euryhaline microalgae Scenedesmus sp. MKB. with paddy straw for biogas production

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