Home composting using different ratios of bulking agent to food waste

Guidoni, Lucas Lourenço Castiglioni; Marques, Roger Vasques; Moncks, Rodrigo Bilhalva; Botelho, Fabiana Torma; Paz, Matheus Francisco da; Corrêa, Luciara Bilhalva; Corrêa, Érico Kunde

doi:10.1016/j.jenvman.2017.11.031

Cited by 74 publications

(30 citation statements)

References 32 publications

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“…Different kinds of agricultural and green wastes are used as an efficient BA for FW composting such as rice husk, wood chip, and wheat straw [15]. However, there has been little research into the enhancement of the evolution of the process by mixing different components to improve the efficiency of the BA used [16]. Given the focus of several studies on the convenience of wheat straw as a bulking agent for FW composting [12,16], a second constituent of the mixture should be thereafter well selected.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Food Waste and Biochar In-Vessel Co-Composting

et al. 2020

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As bulking agents (BA) affect the composting process, this work examined the impact of combinations of different organic components in order to obtain an efficient co-substrate for food waste (FW) in-vessel composting. To boost the occurrence of microorganisms inhabiting the compost, mature compost was firstly coupled with wheat straw, added to FW, and considered as a control (BC0). Then, two trials (BC10, BC20) including 10% and 20% of biochar were monitored. The results indicated that the temperature of the amended bioreactors was notably increased compared to the unamended one. Thermophilic temperatures were achieved at 14, 34, and 78 h after the experimental setup for BC20, BC10, and BC0, which lasted for 14, 17, and 12 days, respectively. When it came to an assessment of maturity and stability, the quality of the compost was evaluated against several indicators and compared with the compost quality standards of the UK, France, Canada, the USA, Poland, and Germany. BC10 illustrated a high-quality product in relation to the heavy metal concentration, a C:N ratio which reached 14.97, an AT4 which was lower than 6 (4.36 mg O2/g TS), and a nitrification index of 2.61 (<3). Consequently, the addition of 10% of biochar as a co-substrate showed an improvement of the process evolution and the characteristics of the biofertilizer produced.

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Section: Introductionmentioning

confidence: 99%

Optimization of Food Waste and Biochar In-Vessel Co-Composting

et al. 2020

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“…With the lowest TF (i.e. one turning/week), the temperature profiles was lower than those found under other conditions, denoting that a low applied TF compacted the piles contributing to limit the biological activity, reducing the generation of heat [31], [32]; However, if the MR (i.e. higher than 15%) is increased, the porosity of the pile could also increase and influence so that the temperature may be higher.…”

Section: Simulation Of the Composting Process With Annmentioning

confidence: 81%

Neural Network Modeling to Support an Experimental Study of the Composting Process of Biowaste With Filter Cake and Star Grass

Soto-Paz

Manyoma-Velásquez

Ocaña

et al. 2018

WIT Transactions on Ecology and the Environment

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Biowaste (B) is the predominant fraction of municipal solid waste (MSW) in developing countries and composting is one of the most widely used technologies for the use of biowaste. Several interrelated factors affect the efficiency of the bioconversion of the substrate influencing the development of the composting process and therefore, the quality of the final product. Simulations through Artificial Neural Networks-ANN allows to determine the influence of these factors and to make predictions that improve the process and the quality of the final product which providing the definition of real criteria for the implementation of the technology. This study shows the feasibility of simulating, with feedforward ANN, the composting process at a pilot scale by mixing with biowaste, Filter cake (FC) and star grass (SG). Experiments were carried out with a Box-Bemkhen design, simultaneously evaluating factors such as the mixing ratio (MR) of B:

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“…With the idea of giving a second application to the unused parts of tropical fruits as a source of valuable compounds for industry, research has been developed, and in general options like livestock feeding (Dou, Toth, & Westendorf, ), composting (Guidoni et al., ), anaerobic digestion (De Clercq, Wen, Gottfried, Schmidt, & Fei, ), biofuel production (Rago, Surroop, & Mohee, ), and landfilling (Pahla, Ntuli, & Muzenda, ) have been studied. At the same time, authors like Lousada Júnior, Correia da Costa, Miranda Neiva, and Rodríguez () explained that the food industry makes huge investments to increase their processing capacity throughout the supply chain, aiming to decrease the generation of byproducts, which in many cases are considered operational cost for companies or source of environmental contamination.…”

Section: Wastes and Byproducts From Tropical Fruits And Their Currentmentioning

confidence: 99%

“…With the idea of giving a second application to the unused parts of tropical fruits as a source of valuable compounds for industry, research has been developed, and in general options like livestock feeding (Dou, Toth, & Westendorf, 2018), composting (Guidoni et al, 2018), anaerobic digestion (De Clercq, Wen, Gottfried, Schmidt, & Fei, 2017), biofuel production F I G U R E 2 Production, net import and domestic availability (in thousands of tonnes per year) of the main tropical fruits (avocado, mango, papaya and pineapple) in function of the geographic area. The data were derived from FAO (2019) (Rago, Surroop, & Mohee, 2018), and landfilling (Pahla, Ntuli, & Muzenda, 2018) have been studied.…”

Section: Wastes and Byproducts From Tropical Fruits And Their Currentmentioning

confidence: 99%

Valorization of byproducts from tropical fruits: Extraction methodologies, applications, environmental, and economic assessment: A review (Part 1: General overview of the byproducts, traditional biorefinery practices, and possible applications)

Villacís-Chiriboga

Elst

Camp

et al. 2020

Comp Rev Food Sci Food Safe

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Tropical fruits represent one of the most important crops in the world. The continuously growing global market for the main tropical fruits is currently estimated at 84 million tons, of which approximately half is lost or wasted throughout the whole processing chain. Developing novel processes for the conversion of these byproducts into value‐added products could provide a viable way to manage this waste problem, aiming at the same time to create a sustainable economic growth within a bio‐economy perspective. Given the ever‐increasing concern about sustainability, complete valorization through a bio‐refinery approach, that is, zero waste concept, as well as the use of green techniques is therefore of utmost importance. This paper aims to report the status on the valorization of tropical fruit byproducts within a bio‐refinery frame, via the application of traditional methodologies, and with specific attention to the extraction of phenolics and carotenoids as bioactive compounds. The different types of byproducts, and their content of bioactives is reviewed, with a special emphasis on the lesser‐known tropical fruits. Moreover, the bioactivity of the different types of extracts and their possible application as a resource for different sectors (food, pharmaceutical, and environmental sciences) is discussed. Consequently, this review presents the concepts of tropical fruit biorefineries, and the potential applications of the isolated fractions.

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Home composting using different ratios of bulking agent to food waste

Cited by 74 publications

References 32 publications

Optimization of Food Waste and Biochar In-Vessel Co-Composting

Optimization of Food Waste and Biochar In-Vessel Co-Composting

Neural Network Modeling to Support an Experimental Study of the Composting Process of Biowaste With Filter Cake and Star Grass

Valorization of byproducts from tropical fruits: Extraction methodologies, applications, environmental, and economic assessment: A review (Part 1: General overview of the byproducts, traditional biorefinery practices, and possible applications)

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