Life Cycle Assessment of Large-scale Compressed Bio-natural Gas Production in China: A Case Study on Manure Co-digestion with Corn Stover

Yang, Yang; Ni, Ji‐Qin; Zhu, Wanbin; GuangHui, Xie

doi:10.3390/en12030429

Cited by 20 publications

(6 citation statements)

References 25 publications

(35 reference statements)

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“…For smaller farms, more manure for self-use or giving away should be encouraged to co-develop integrated crop-livestock systems with nearby farmers. For larger farms, incentives can be provided for investment in manure treatment facilities such as biogas digesters (Yang et al, 2019;Adghim et al, 2020;Sharara et al, 2020) and organic fertilizer processing equipment (Sharara et al, 2018;Makara et al, 2019;Zubair et al, 2020) to facilitate the storage, transportation and sales of manure. In addition, land transfer can be facilitated in rural areas to enable larger farms to lease in land to develop onsite integrated crop-livestock systems, which is consistent with the literature (Gowing et al, 2020;Ghimire et al, 2021;Wang et al, 2021a).…”

Section: Discussionmentioning

confidence: 99%

The impact of livestock farm size on manure disposal modes: sell, give away or self-use

Qian

Wang

et al. 2022

Renew. Agric. Food Syst.

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Two prevailing trends in livestock production include increasing farm sizes and higher recycling rates of manure. Using beef cattle farms in China as a case study, we examine the impact of farm size on farmers' choice of manure disposal modes. Three forms of manure disposal modes are identified: (1) selling to neighboring farmers, (2) giving away to neighboring farmers and (3) self-use. Based on primary data from a field survey of beef cattle farmers in China, we estimate the choice of the above-mentioned three disposal modes using the constrained singular Seemingly Unrelated Regression (SUR) model. We find a significant and nonlinear impact of farm size on farmers' choice of manure disposal modes. Specifically, there is a significant and inversed U-shaped relationship between farm size and manure giving away, and a significant U-shaped relationship between farm size and manure selling or self-use. We additionally find several other factors that affect farmers' choice of manure disposal: the educational level of a farmer has a positive impact on manure selling; the better a farmer's physical health condition, the more likely the farmer self uses manure and less likely gives it away; land acquisition, as well as engagement in crop farming, increases manure self-use and reduces manure giving away and selling; the availability of manure treatment facilities reduces manure self-use; and the willingness of nearby crop growers to accept manure significantly decreases manure self-use and increases manure selling and giving away. Policy implications are also discussed.

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Section: Discussionmentioning

confidence: 99%

The impact of livestock farm size on manure disposal modes: sell, give away or self-use

Qian

Wang

et al. 2022

Renew. Agric. Food Syst.

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“…Among these applications, 86% were LCA of which 69% utilized the following methods: CML, IPCC, ReCiPe, ILCD, and EDIP (Figure b and Table S10). The majority of these studies (with agricultural residue, organic municipal solid waste, and animal waste as feedstocks) were conducted in European countries (i.e., Italy, Germany, United Kingdom) and Asia (i.e., China, India, Iran). ,,− …”

Section: Applications Of Data Science In Rrcc From Organic Waste Streamsmentioning

confidence: 99%

A Critical Review of Data Science Applications in Resource Recovery and Carbon Capture from Organic Waste

Zaki,

Rowles,

Adjeroh

et al. 2023

ACS EST Eng.

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Municipal and agricultural organic waste can be treated to recover energy, nutrients, and carbon through resource recovery and carbon capture (RRCC) technologies such as anaerobic digestion, struvite precipitation, and pyrolysis. Data science could benefit such technologies by improving their efficiency through data-driven process modeling along with reducing environmental and economic burdens via life cycle assessment (LCA) and techno-economic analysis (TEA), respectively. We critically reviewed 616 peer-reviewed articles on the use of data science in RRCC published during 2002−2022. Although applications of machine learning (ML) methods have drastically increased over time for modeling RRCC technologies, the reviewed studies exhibited significant knowledge gaps at various model development stages. In terms of sustainability, an increasing number of studies included LCA with TEA to quantify both environmental and economic impacts of RRCC. Integration of ML methods with LCA and TEA has the potential to costeffectively investigate the trade-off between efficiency and sustainability of RRCC, although the literature lacked such integration of techniques. Therefore, we propose an integrated data science framework to inform efficient and sustainable RRCC from organic waste based on the review. Overall, the findings from this review can inform practitioners about the effective utilization of various data science methods for real-world implementation of RRCC technologies.

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“…Figure 2 shows the distribution of these digesters in various Asian countries. China leads the race with 84% of digester [ 16 , 17 ]. Apart from small digesters, there are large-scale digesters producing electricity.…”

Section: Agricultural Wastes For Bioenergymentioning

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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Life Cycle Assessment of Large-scale Compressed Bio-natural Gas Production in China: A Case Study on Manure Co-digestion with Corn Stover

Cited by 20 publications

References 25 publications

The impact of livestock farm size on manure disposal modes: sell, give away or self-use

The impact of livestock farm size on manure disposal modes: sell, give away or self-use

A Critical Review of Data Science Applications in Resource Recovery and Carbon Capture from Organic Waste

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

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