Rapid in-situ composting of household food waste

Zhou, Xule; Yang, Jing; Xu, Shuning; Wang, Jiade; Zhou, Qingqing; Li, Yiren; Tong, Xinyi

doi:10.1016/j.psep.2020.05.039

Cited by 48 publications

(10 citation statements)

References 42 publications

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“…The case of local composting at homes reduces transportation and collection cost by decreasing the amount of domestic waste carried to centralized composting facilities [ 76 ]. At the same time, household waste contains impurities and are widely distributed which hinders the efficiency of centralized composting facilities in disposing them.…”

Section: Discussionmentioning

confidence: 99%

Household solid waste management practices and perceptions among residents in the East Coast of Malaysia

et al. 2022

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Background Poor waste disposal practices hamper the progress towards an integrated solid waste management in households. Knowledge of current practices and perception of household solid waste management is necessary for accurate decision making in the move towards a more sustainable approach. This study investigates the household waste practices and perceptions about waste management in Panji, one of the sub-districts in Kota Bharu, Kelantan, Malaysia. Methods A stratified random sampling technique using a cross-sectional survey questionnaire was used to collect data. A total of 338 households were interviewed in the survey and data were analyzed using SPSS. Chi-square goodness of fit test was used to determine the relationships between categorical variables, whereas Chi-square bivariate correlation test was performed to observe the correlation between the perceptions of waste segregation with socio-demographic background of the respondents. The correlation between perception of respondents with the locality, house type and waste type were also conducted. Principal component analysis was used to identify grouping of variables and to establish which factors were interrelated in any given construct. Results The results of the study revealed that 74.3 % of households disposed of food debris as waste and 18.3% disposed of plastic materials as waste. The study also showed that 50.3% of the households segregate their waste while 49.7% did not. About 95.9% of the respondents were aware that improper waste management leads to disease; such as diarrhea and malaria. There were associations between locality, age and house type with waste segregation practices among respondents (Chi-square test, p<0.05). Associations were also found between locality with the perception of improper waste management which lead to disease (Chi-square test, p<0.05). Principal Component Analysis showed that 17.94% of the variance has high positive loading (positive relationship) with age, marital status and, type of house. Conclusion This study highlights the importance to design waste separation programs that suit the needs of targeted population as a boost towards sustainable solid waste management practices.

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Section: Discussionmentioning

confidence: 99%

Household solid waste management practices and perceptions among residents in the East Coast of Malaysia

et al. 2022

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“…According to Ramachandra et al (2018), the main problem of biodegradable municipal waste is its high moisture content, which could generate greenhouse gases (mainly CO 2 , CH 4 , NH 3 ). Zhou et al (2020) also observed that food waste from a university canteen in Zhejiang, China, had high initial moisture content, slightly higher than the optimal value (65%) for composting. Some authors propose acceptable ranges (e.g., % moisture content from 40 to 65% and pH between 5.5 and 9, and ideally between 6.5 and 8) (Rynk et al 1992).…”

Section: ₄₂₀ Ms Z�� mentioning

confidence: 87%

Diagnóstico y estrategias para gestionar residuos de cocina y alimentos en un comedor institucional en Buenos Aires, Argentina

et al. 2022

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A��.The classification and quantification of kitchen and food waste is a necessary strategy to improve the sustainability of waste management. The objective of this study was to quantify and describe the solid waste generated in the kitchen (food processing zone) and canteen of an official institution over the course of a year. A waste sampling protocol was established, which made it possible to identify, classify and characterize the generated waste. It generated 802.4 kg of total waste/day, representing 0.34 kg.day 1 .person -1 , with similar averages in the processing and canteen zones and greater generation during the main meals. Dry (15%), wet (73%) and mixed (11.8%) wastes were identified. Dry waste was generated mainly in the processing area, and to manage it during the preparation of the main menu, the practices included in the 4Rs are proposed. The strategy of source separation of said area will allow a 93.5% reduction of mixed waste. The generated wet waste was 587.77 kg/day. Among other characteristics, wet waste showed acid pH, high moisture content, balanced lignocellulose biomass composition and C/N ratios within the range considered optimal for biological transformation such as aerobic composting and/or anaerobic digestion or fermentation. In addition, it is rich in protein and fiber, which is why it is proposed to manufacture animal feed as an alternative destination for digestion processes. This study identifies great potential for sustainable management of food loss and waste, in accordance with the objectives of the circular economy.

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“…Only half of the councils in England collect food waste separately at the moment, although this is going to change by 2026, and separate collections are increasing year on year 36,37 . In areas without centralised wet kitchen waste collection, innovative methods enable rapid composting at the household level 38, 39 . However, challenges exist for those pressed for time, resources, or space.…”

Section: The T‐rex In the Room ‐ Household Waste And The Need For Seg...mentioning

confidence: 99%

Food waste: a changing landscape

2024

Food Sci and Tech

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Rapid in-situ composting of household food waste

Cited by 48 publications

References 42 publications

Household solid waste management practices and perceptions among residents in the East Coast of Malaysia

Household solid waste management practices and perceptions among residents in the East Coast of Malaysia

Diagnóstico y estrategias para gestionar residuos de cocina y alimentos en un comedor institucional en Buenos Aires, Argentina

Food waste: a changing landscape

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