Development of sustainable approaches for converting the organic waste to bioenergy

Dhanya, B.; Mishra, Archana; Chandel, Anuj K.; Verma, Madan L.

doi:10.1016/j.scitotenv.2020.138109

Cited by 123 publications

(40 citation statements)

References 201 publications

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“…Very low OLRs may contribute to deprivation and adversely affect AD (Zhang et al, 2019). Too high OLRs may generate insufficient products that promote microbial growth while large loads contribute to an accumulation of VFA in a fermenter that prevents microbial growth (Dhanya et al, 2020). The optimum OLR for co-digestion of food waste and manure was stated to be 3 gVS/L/d (Agyeman and Tao, 2014); for grass, manure, straw, fruit, and vegetable waste 7.5 gVS/L/d (Ganesh et al, 2013); for sugar beet by-product and pig manure 11.2 gVS/ L/d (Aboudi et al, 2015); and for used coffee grounds and sludge 23.6 gCOD/L/d (Qiao et al, 2013).…”

Section: Factor Affecting the Ad Process Of Organic Wastementioning

confidence: 99%

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Uddin¹,

Siddiki²,

Mofijur³

et al. 2021

Front. Energy Res.

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Anaerobic digestion (AD) from organic waste has gained worldwide attention because it offers significant environmental and economic benefits. It can reduce the local waste through recycling which will conserve resources, reduce greenhouse gas emissions, and build economic resilience in the face of an uncertain future for energy production and waste disposal. The productive use of local waste through recycling conserves resources by reducing landfill space, the whole of life impacts of landfilling, and post-closure maintenance of landfills. Turning waste into a renewable energy source will assist the decarbonisation of the economy by reducing harmful emissions and pollutants. Therefore, this mini-review aims to summarise key factors and present valuable evidence for an efficient AD process. It also presents the pros and cons of different AD process to convert organic waste along with the reactor technologies. Besides, this paper highlights the challenges and the future perspective of the AD process. However, it is highlighted that for an effective and efficient AD process, appropriate temperature, pH, a strong inoculum to substrate ratio, good mixing and small particle sizes are important factors. The selection of suitable AD process and reactor is important because not all types of processes and reactors are not effective for processing organic waste. This study is of great importance for ongoing work on renewable energy generation from waste and provides important knowledge of innovative waste processing. Finally, it is recommended that the government should increase their support towards the AD technology and consider the unutilized significant potential of gaseous biofuel production.

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Section: Factor Affecting the Ad Process Of Organic Wastementioning

confidence: 99%

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Uddin¹,

Siddiki²,

Mofijur³

et al. 2021

Front. Energy Res.

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“…The objectives of composting can be stabilization, volume and mass reduction, drying, elimination of phytotoxic substances and undesired seed and plant parts, and sanitation. Some important wastes for composting are kitchen waste, biowaste, garden and green waste, garbage, feces of human, wastewater sludge (raw), wastewater sludge (anaerobic stabilized), dung of cattle, horses, sheep, pigs, liquid manure of cattle, pigs and chickens, beet leaves, straw, fresh bark, bark mulch, wood chips, leaves, reed, peat, paunch manure, grape marc, fruit marc, tobacco and paper, Organic waste management and bioenergy production are complementary to each other; while social, economic and environmental development are key indicators for sustainable waste management, nanotechnological based implications play a profound role in increasing bioenergy production (Dhanya et al, 2020). Solar composers offer a viable solution in rural areas lacking connection to municipal power supplies, and solar composting greenhouse has a high potentiality to transform organic waste into organic fertilizer (Lin et al, 2020).…”

Section: Organic Wastementioning

confidence: 99%

Organic waste utilization and urban food waste composting strategies in China - A review

2021

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Food loss may occur in production, storage, transport, and processing, which are the stages of the value chain with the lowest returns. The current searching was done by the keywords in main indexing systems including PubMed/MEDLINE, Scopus, and Institute for Scientific Information Web of Science as well as the search engine of Google Scholar. The most important points challenging areas that represent opportunities for stakeholders to look into in China are, put in place suitable economic incentives to encourage restaurants to get more involved in the formal system, create a comprehensive regulation system to benefit all relevant stakeholders by clearly defining their respective roles and responsibilities, which is necessary for the proper functioning of the whole system. In China, the most important regulations, policies and plans are regulations on safety issues of food waste treatment, detailed countermeasures on organizing, educating, supervising, and inspecting the work on food waste reduction in China, and detailed plant for household waste collection and treatment, issued by Chinese government, state council, and ministry of environmental protection. Setting national goals, awareness-raising campaigns, strict and appropriate regulation, stakeholder engagement, biorefinery and food waste recycling to animal feed are important strategies for better waste management. The most important food waste management practices in China are source separation, animal feed, rendering, composting, co-digestion, anaerobic digestion, incineration, landfill, and etc. Understanding social factors influencing household behavior is utmost importance; public education and specific communication highly contribute to improve recycling.

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“…In particular, biogas is a mixture of 55-70% (v/v) methane (17-25 MJ/m 3 ), 30-45% (v/v) carbon dioxide, and some other gases in traces. It is produced by anaerobic fermentation of the organic matter and thus in an oxygen-free environment [45,46]. In addition to being a renewable energy source, biogas does not have any geographical limitations nor does it require advanced technology for producing energy [47].…”

Section: Biogas Through Biochemical Conversionmentioning

confidence: 99%

Avocado-Derived Biomass as a Source of Bioenergy and Bioproducts

2020

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The avocado (Persea americana Mill.) is a tree native to Mexico and Guatemala. Avocado consumption, fresh or in the form of processed products, is growing everywhere and it has caused a large number of countries to invest heavily in avocado production. The industrialization of avocado gives as a result a huge amount of waste, not only the peel and stone but also that waste generated by the pruning practices and oil extraction. These biomasses could be converted into raw materials to obtain different types of co-products, but this implies changes in the use of these resources, the design of efficient production systems, and integration to take full advantage of them, e.g., by developing biorefinery models. Therefore, this review firstly gives a snapshot of those residues generated in the avocado industry and provides their chemical composition. Secondly, this review presents updated information about the valorization ways of avocado-derived biomass to obtain bioenergy, biofuels, and other marketable products (starch, protein, phenolic compounds, and biosorbents, among others) using a single process or integrated processes within a biorefinery context. Green technologies to obtain these products are also covered, e.g., based on the application of microwaves, ultrasound, supercritical fluids, etc. As a conclusion, there is a variety of ways to valorize avocado waste in single processes, but it would be promising to develop biorefinery schemes. This would enable the avocado sector to move towards the zero-waste principle.

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Development of sustainable approaches for converting the organic waste to bioenergy

Cited by 123 publications

References 201 publications

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

RETRACTED: Prospects of Bioenergy Production From Organic Waste Using Anaerobic Digestion Technology: A Mini Review

Organic waste utilization and urban food waste composting strategies in China - A review

Avocado-Derived Biomass as a Source of Bioenergy and Bioproducts

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