Knowledge Agora

Title	Energy composting allows rapid degradation of food waste using a water bath heated with electricity or solar energy
ID_Doc	29409
Authors	Li, B; Shi, ZH; He, MH; Hu, TT; Dong, ZY
Title	Energy composting allows rapid degradation of food waste using a water bath heated with electricity or solar energy
Year	2021
Published	Environmental Chemistry Letters, 19.0, 5
Abstract	Food waste is a major issue in the context of pollution, climate change, and the future circular economy. Composting kitchen waste is a promising method to recycle elements, yet the efficiency of composting is limited, calling for new processes that degrade rapidly and thoroughly organic matter. Here, we built a rapid laboratory-scale aerobic composting system, equipped with a water bath fueled with either solar energy, or electricity under low sunlight. We tested compositing with and without energy. Results show that only three days are needed to raise the temperature to over 45 degrees C by energy composting in winter, leading to notable increases in pH, total nitrogen, and cation exchange capacity after 7 days. Composting materials were thoroughly decomposed and mature in 10 days, displaying pH of 7.5, ratio of total organic carbon to total nitrogen of 9.9, cation exchange capacity of 65.61 cmol kg(-1), and germination index of 80.4%. Overall, energy composting starts biodegradation quickly in 2 days, reduces effectively the inhibition from some waste compounds, decomposes organic substances well, and yields mature compost.
PDF

Similar Articles

ID	Score	Article
8434		Sharma, A; Soni, R; Soni, SK From waste to wealth: exploring modern composting innovations and compost valorization(2024)Journal Of Material Cycles And Waste Management, 26.0, 1
21371		Keng, ZX; Chong, S; Ng, CG; Ridzuan, NI; Hanson, S; Pan, GT; Lau, PL; Supramaniam, CV; Singh, A; Chin, CF; Lam, HL Community-scale composting for food waste: A life-cycle assessment-supported case study(2020)
13366		Noor, RS; Shah, AN; Tahir, MB; Umair, M; Nawaz, M; Ali, A; Ercisli, S; Abdelsalam, NR; Ali, HM; Yang, SH; Ullah, S; Assiri, MA Recent Trends and Advances in Additive-Mediated Composting Technology for Agricultural Waste Resources: A Comprehensive Review(2024)Acs Omega, 9, 8
13468		Xiao, N; Kong, LX; Wei, MM; Hu, XF; Li, O Innovations in food waste management: from resource recovery to sustainable solutions(2024)
16058		Baptista, CFT; Rodrigues, RP; Quina, MJ Composting of Biowaste Generated in University Canteens and Rural Households: Converting Waste into a Valuable Product(2024)Sustainability, 16, 11
10526		Xu, MY; Sun, HS; Chen, E; Yang, M; Wu, CF; Sun, XH; Wang, QH From waste to wealth: Innovations in organic solid waste composting(2023)
27075		Haouas, A; El Modafar, C; Douira, A; Ibnsouda-Koraichi, S; Filali-Maltouf, A; Moukhli, A; Amir, S Evaluation of the nutrients cycle, humification process, and agronomic efficiency of organic wastes composting enriched with phosphate sludge(2021)
8677		Xu, Q; Zhang, T; Niu, YQ; Mukherjee, S; Abou-Elwafa, SF; Nguyen, NSH; Aboud, NMA; Wang, YK; Pu, MJ; Zhang, YR; Tran, HT; Almazroui, M; Hooda, PS; Bolan, NS; Rinklebe, J; Shaheen, SM A comprehensive review on agricultural waste utilization through sustainable conversion techniques, with a focus on the additives effect on the fate of phosphorus and toxic elements during composting process(2024)
24261		Estrella-González, MJ; López-González, JA; Suárez-Estrella, F; López, MJ; Jurado, MM; Siles-Castellano, AB; Moreno, J Evaluating the influence of raw materials on the behavior of nitrogen fractions in composting processes on an industrial scale(2020)
6447		Sakarika, M; Spiller, M; Baetens, R; Donies, G; Vanderstuyf, J; Vinck, K; Vrancken, KC; Van Barel, G; Du Bois, E; Vlaeminck, SE Proof of concept of high-rate decentralized pre-composting of kitchen waste: Optimizing design and operation of a novel drum reactor(2019)