Anaerobic Digestate: A Sustainable Source of Bio-fertilizer

Akbar, Sedrah; Ahmed, Safia; Khan, Samiullah; Badshah, Malik

doi:10.1007/978-981-16-3207-5_15

Cited by 6 publications

(4 citation statements)

References 143 publications

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“…Digestate enriches soil with organic matter, vital nutrients, and valuable microorganisms, enhancing soil structure and fertility. By reducing reliance on chemical fertilizers, which carry ecological burdens from production to application, the biogas sector fosters a holistic approach to agriculture that aligns with sustainable development goals (Akbar et al, 2021). Biogas digesters were installed in 1,000 farms, utilizing farm waste to produce biogas.…”

Section: Figurementioning

confidence: 99%

Harnessing Biogas in India: A Sustainable Pathway for Sustainable Energy Development

Madheswaran,

Saravanan,

Jegadheeswaran

et al. 2024

GLCE

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The review underscores the pivotal role of the Indian biogas sector in addressing the challenges posed by inadequate sanitation practices, exploring how the biogas sector is a potentially transformative force for waste management and energy production. Decentralized biogas facilities utilizing various organic materials, including agricultural waste, kitchen waste, organic industrial waste, sewage sludge, and floral waste, have reshaped rural landscapes. These facilities electrify remote villages, benefiting over 5 million residents and reducing energy expenses by 40%. Critically, these efforts preserve vital ecosystems, exemplified by the rejuvenation of 10,000 hectares of mangroves in the Sundarbans, sequestering an impressive 500,000 metric tons of CO2 annually. Innovative technologies, such as the anaerobic digestion process and advanced biogas production systems featuring improved gas purification techniques, two-stage digesters, and optimized feedstock mixtures, play a crucial role in this sustainability journey. These advancements boost biogas yields by 20%. Importantly, byproducts like digestate are efficiently upcycled into 500 Mt of high-quality biofertilizers annually, significantly enhancing crop yield, particularly wheat and maize, by 15%. Moreover, the transformative impact extends to environmental sustainability by converting digestate into 1,000 Mt of biodegradable plastics, leading to a 30% reduction in traditional plastics usage. Government support and well-crafted policies have been instrumental, with subsidies driving the adoption of biogas digesters in 50,000 households, creating 5,000 jobs, and reducing methane emissions by 2 MMt annually. Biogas catalyzes integrated sustainability, accompanying cleaner environments, improved livelihoods, and resilient ecosystems by harmonizing sanitation, energy, and ecosystem preservation.

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Section: Figurementioning

confidence: 99%

Harnessing Biogas in India: A Sustainable Pathway for Sustainable Energy Development

Madheswaran,

Saravanan,

Jegadheeswaran

et al. 2024

GLCE

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“…There have been several investigations about the nitrogen (N) fertilizing capacity of these types of organic products (Grigatti et al 2011;Akbar et al 2021), while fewer, although an increasing number, of studies have researched phosphorus (P), an emerging critical raw material (Grigatti et al 2019;Stamm et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of Raw and Composted Anaerobic Digestates from Sewage Sludge and Biowaste on Ryegrass Phosphorous Availability and Soil Carbon Management

Grigatti

2022

J Soil Sci Plant Nutr

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“…Biogas production involves anaerobic digestion of organic wastes to produce methane (Akbar et al, 2021;Ma et al, 2022). This process produces large quantities of digestate that can be used as soil amendment.…”

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confidence: 99%

Organic Matter Database (OMD): Consolidating global residue data from agriculture, fisheries, forestry and related industries

Sileshi,

Barrios,

Lehmann

et al. 2023

Preprint

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Abstract. Agricultural, fisheries, forestry and agro-processing activities produce large quantities of residues, by-products and waste materials every year. Inefficient use of these resources contributes to greenhouse gas emissions and non-point pollution, imposing significant environmental and economic burdens to society. Since many nations do not keep statistics of these materials, it has not been possible to accurately quantify the amounts produced and potentially available for recycling. Therefore, the objectives of the present work were to provide: (1) definitions, typologies and methods to aid consistent classification, estimation and reporting of the various residues and by-products; (2) a global organic matter database (OMD) of residues and by-products from agriculture, fisheries, forestry and related industries; and (3) preliminary estimates of residues and by-products potentially available for use in a circular bio-economy. To the best of our knowledge, the OMD is the first of its kind consolidating quantities and nutrient concentrations of residues and by-products from agriculture, fisheries, forestry and allied industries globally. The OMD and its associated products will be continuously updated as new production data are published in FAOSTAT, and this information is expected to contribute to evidence-based policies and actions in support of sustainable utilization and the transition towards a circular economy. The estimates in OMD are available only at the national level. Due to the lack of uniform methodology and data across countries, it was difficult to accurately estimate the quantities of all agricultural, fisheries and forestry residue and by-products. Therefore, we strongly recommend investment in the inventory of agricultural, fisheries and forestry residues, by-products and wastes for use in a circular bio-economy and as amendments.

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Anaerobic Digestate: A Sustainable Source of Bio-fertilizer

Cited by 6 publications

References 143 publications

Harnessing Biogas in India: A Sustainable Pathway for Sustainable Energy Development

Harnessing Biogas in India: A Sustainable Pathway for Sustainable Energy Development

Effect of Raw and Composted Anaerobic Digestates from Sewage Sludge and Biowaste on Ryegrass Phosphorous Availability and Soil Carbon Management

Organic Matter Database (OMD): Consolidating global residue data from agriculture, fisheries, forestry and related industries

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