Circular economy of composting in Sri Lanka: Opportunities and challenges for reducing waste related pollution and improving soil health

Bekchanov, Maksud; Mirzabaev, Alisher

doi:10.1016/j.jclepro.2018.08.186

Cited by 64 publications

(40 citation statements)

References 19 publications

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“…The best way to utilize large volume of nutrient rich agro-wastes is by recycling through appropriate biological processes like composting, vermicomposting or anaerobic digestate [155,156]. Bekchanov and Mirzabaev [157] evaluated that recycling of agro-wastes through composting causes reduction of expenses from US$ 357 to 197 million in total agro-waste management and fertilizer usage cost. However, investment costs of operating an anaerobic sludge composting plant (capacity of 7.12 x 106 kg) is around € 462,646 and annual cost ranges between € 250,000 -360,000.…”

Section: Economic Perspective On Nutrient Recoverymentioning

confidence: 99%

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Vaish

Srivastava

Singh

et al. 2019

Environmental Engineering Research

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Agricultural sector has inescapably drawn attention towards itself due to growing concern over population explosion, changing climate and depletion of resources. Advancements in technology have caused rapid boost in farm productivity and hence huge production of agro-wastes. There have been massive deteriorating impacts of agro-wastes on existing environmental conditions, creating wide scale environmental pollution as well as biodiversity loss. Since, agro-wastes have huge potential in the form of energy and nutrient recovery (ENR), amalgamations of different technologies would promote sustainability. ENR not only adjoins an added profitable product but also facilitates to close environmental nutrient cycles. This provides a substitute to existing unsustainable approaches that are energy demanding and reliant on nonrenewable sources of energy. This review underpins why ENR from agro-waste must be key concern in production of array of higher value products.

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Section: Economic Perspective On Nutrient Recoverymentioning

confidence: 99%

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Vaish

Srivastava

Singh

et al. 2019

Environmental Engineering Research

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“…From a literature viewpoint, it has been reported that many Asian cities have been exposed to health risks because the majority of their heavily polluted water has been dumped into freshwater streams. The technology of recycling and composting organic waste could turn wastes into valuable resources, simultaneously supporting the restoration of degraded lands, the reduction of chemical fertilizer imports, and the improvement of food security [29,30]. One of the major advantages of land filling is the simplicity of implementation and operation as well as the ability to adapt to fluctuations in the quantity or composition of the wastes and, thus, it was proven a feasible process to use to treat municipal solid waste (MSW) [31].…”

Section: Composting Technology and Recovery Of Nutrients From Urban Wmentioning

confidence: 99%

“…From a marketing viewpoint, the financially feasibility of composting succeeds by trading extra supply of the producible compost and transferring the recovered nutrients from urban areas to rural areas, in alignment with moderation of logistics transportation cost and preservation of high quality of compost soil [21,30].…”

Section: Composting Technology and Recovery Of Nutrients From Urban Wmentioning

confidence: 99%

“…From an economics viewpoint, compost demand and organic farming in agriculture may replace the elimination or reduction of government subsidies to chemical fertilizers and improve the organic crops in foreign markets with long-term contracts [30].…”

Section: Composting Technology and Recovery Of Nutrients From Urban Wmentioning

confidence: 99%

“…Besides, the monitoring and certification of compost will facilitate compost markets. Conclusively, central governmental policies can affect appropriate institutional regulations and training programs to support financial incentives and raise environmental awareness upon recycling [30].…”

Section: Composting Technology and Recovery Of Nutrients From Urban Wmentioning

confidence: 99%

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Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review

et al. 2019

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A circular economy (CE) is conceptualized under different rounds of materials and energy cycling flows and is a matter of a three-level deployment: inter-enterprise circulation, regional circulation, and social circulation. Regarding them, the aim of this research was to get an update on the current technological advances and the perspectives of its implementation. Thus, a multi-parametric approach has been conducted to analyze the functionality of technologies in wastewater treatment, organic waste management, agrarian development, and food waste in the context of CE. Beside the narrative of the technological view, a critical approach assimilates the environmental, marketing, economic, governmental, and procedural viewpoints and leads to key indicators which are subject to positive and negative externalities. Due to this co-existence, we denoted the complexity of CE principle implementation and the need for specific envisage in each case, while proposing strategies are formulated in the light of social-environmental impact. Finally, further research gaps were proposed for deeper consideration.

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A comprehensive approach to the feasibility assessment of on‐campus food waste composting

Al‐Aomar

Haroun

Osman

2021

Integr Envir Assess & Manag

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Food waste management is increasingly being emphasized globally due to its economic and environmental impacts and strategic transformation towards sustainability. This can be observed from the increasing number of zero food waste (ZFW) initiatives that are being adopted by communities and institutions, including universities. Food waste composting, in particular, is increasingly being used for food waste recovery on university campuses. Campus sustainability managers are often challenged with the interrelated impacts of economic and noneconomic factors when selecting a composting system and the sensitivity and risks involved in such a decision. Reviewed research highlights the need for a comprehensive assessment of economic and operational feasibility in order to adopt an effective on‐campus food waste composting system. This paper presents a methodological framework for assessing the feasibility of on‐campus food waste composting systems. In addition to the composting project's economic feasibility, the framework utilizes the analytical hierarchy process to integrate noneconomic criteria into the assessment of composting alternatives. The framework then analyzes the sensitivity of the present worth of each composting system to projected changes in the economic parameters used. The framework also models the impacts of variability in the operational parameters of the composting system. Assessment values are then integrated into a normalized ranking of the alternative composting systems. The framework is illustrated through the assessment of three alternatives for installing on‐campus food composters in a major university. The results provide insight and guidelines for adopting economically effective food waste recovery systems and ZFW initiatives for green and sustainable university campuses. Integr Environ Assess Manag 2022;18:964–977. © 2021 SETAC

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Circular economy of composting in Sri Lanka: Opportunities and challenges for reducing waste related pollution and improving soil health

Cited by 64 publications

References 19 publications

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Energy and nutrient recovery from agro-wastes: Rethinking their potential possibilities

Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review

A comprehensive approach to the feasibility assessment of on‐campus food waste composting

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