Energy and carbon footprint analysis of municipal wastewater treatment process integrated with food waste disposer

Guan, Jian-Yu; Zhuang, Huichuan; Lau, Chun Yin; Leng, Ling; Yeung, Chi Shun; Vuppaladadiyam, Arun Krishna; Wang, Huaimin; Tse, Ho Yin; Leu, Shao-Yuan

doi:10.1016/j.jclepro.2022.134063

Cited by 8 publications

(2 citation statements)

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“…[13] This type of waste can be classified into the food remains and food processing waste based on the sources of production. [14] The fruit and nutshell wastes, with its high lignin content (50 wt%), makes it an attractive source of monomer production in the biorefinery. [15] The fruit and nut-processing industry has a well-established infrastructure, stable and logistically efficient feedstock procurement, and is ready for the purpose of lignin valorization practices.…”

Section: Introductionmentioning

confidence: 99%

“…The overall production of those biomass is approximately 24–31 million tons annually worldwide [13] . This type of waste can be classified into the food remains and food processing waste based on the sources of production [14] . The fruit and nutshell wastes, with its high lignin content (50 wt%), makes it an attractive source of monomer production in the biorefinery [15] .…”

Section: Introductionmentioning

confidence: 99%

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Monolignol Potential and Insights into Direct Depolymerization of Fruit and Nutshell Remains for High Value Sustainable Aromatics

Khan,

Guan,

Lau

et al. 2024

ChemSusChem

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The inedible parts of nuts and stone fruits are low‐cost and lignin‐rich feedstock for more sustainable production of aromatic chemicals in comparison with the agricultural and forestry residues. However, the depolymerization performances on food‐related biomass remains unclear, owing to the broad physicochemical variations from the edible parts of the fruits and plant species. In this study, the monomer production potentials of ten major fruit and nutshell biomass were investigated with comprehensive numerical information derived from instrumental analysis, such as plant cell wall chemical compositions, syringyl/guaiacyl (S/G) ratios, and contents of lignin substructure linkages (β−O−4, β−β, β−5). A standardized one‐pot reductive catalytic fractionation (RCF) process was applied to benchmark the monomer yields, and the results were statistically analyzed. Among all the tested biomass, mango endocarp provided the highest monolignol yields of 37.1% per dry substrates. Positive S‐lignin (70‐84%) resulted in higher monomer yield mainly due to more cleavable β–O–4 linkages and less condensed C–C linkages. Strong positive relationships were identified between β–O–4 and S‐lignin and between β–5 and G‐lignin. The analytical, numerical, and experimental results of this study shed lights to process design of lignin‐first biorefinery in food‐processing industries and waste management works.

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Section: Introductionmentioning

confidence: 99%