Biodegradation of lignin in a compost environment: a review

Tuomela, Marja; Vikman, Minna; Hatakka, Annele; Itävaara, Merja

doi:10.1016/s0960-8524(99)00104-2

Cited by 1,033 publications

(583 citation statements)

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“…It is acknowledged that the most effective lignin-degrading microorganisms in nature are white rot fungi which cannot survive under thermophilic conditions; while other bacteria genera can solubilize and modify lignin structure but the ability to mineralize it are limited (Vikman et al, 2002). According to Tuomela et al(2000), the most frequently occurring lignin-degraders in composting are thermophilic fungi, for which optimum growth condition is 40 -50ºC. This confirmed the results observed in previous studies, under temperature of 35 -50ºC more lignin was decomposed, mineralization reached 23 -24% within 45 -48 days (Tuomela et al, 2001) but more lignin was bound to humic substances than oxidized to CO 2 (Tuomela et al, 2001, Vikman et al, 2002.…”

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confidence: 77%

“…Appendix 463 decomposition was reported for a paper mixture within 590-days composting at ambient temperature 17 -23ºC (Eklind and Kirchmann, 2000a); even a higher lignin biodegradation (70%) within a 35-day incubation period at 50ºC has been reported (Tuomela et al, 2000).…”

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confidence: 98%

“…This confirmed the results observed in previous studies, under temperature of 35 -50ºC more lignin was decomposed, mineralization reached 23 -24% within 45 -48 days (Tuomela et al, 2001) but more lignin was bound to humic substances than oxidized to CO 2 (Tuomela et al, 2001, Vikman et al, 2002. According to a review (Tuomela et al, 2000), irrespective of lignin-source, generally less than 30% of lignin degradation occurs within a period of less than 50 days at 25-50ºC . However, with a sufficient duration of composting at optimum temperature, a higher degradation levels can be achieved: 50% lignin…”

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confidence: 99%

“…Appendix 464 biodegradability results reported primarily represented the mineralization of test material; whereas via literature review, it was found that the most of the studies on lignin degradation used biochemical composition analysis methodology but C gaseous release was rarely concerned (Tuomela et al, 2000): such as studies carried out by Eklind and Kirchmann (2000a) and Francou et al(2008). Only limited studies analyzed both decomposing material and evolution of CO 2 (Tuomela et al, 2001, Francou et al, 2008.…”

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Life Cycle Assessment (LCA) of Light-Weight Eco-composites

Guo¹

2012

Springer Theses

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LCA of Light-weight Eco-composites Statement of originality 2 Statement of originalityI hereby declare that this submission is my own work and to the best of my knowledge it contains no materials previously published or written by another person.Contributions made to the research of this thesis by others, with whom I have worked with are explicitly acknowledged. I also declare that the intellectual content of this thesis is the product of my own work, except to the extent that assistance from others with data collection and modification of process-oriented model DNDC is acknowledged. Miao GuoSep 2010 LCA of Light-weight Eco-compositesAbstract 3 AbstractThe environmental profiles of novel wheat based foam materials were investigated in this thesis using Life Cycle Assessment (LCA) methods. The LCAs were developed using primary data collected from industrial sources combined with new laboratory experiments supplemented with secondary data from publicly available sources.Laboratory research was conducted to obtain important missing data on WBFs for the LCA modelling, including physico-chemical parameters, biodegradability and energy recovery under anaerobic digestion conditions.Contribution analysis suggested that the emissions evolved from the wheat agroecosystem and PVOH production, together with the energy and infrastructure involved in WBF production were the major contributors to the environmental burdens of the WBF life cycle in most impact categories. The atmospheric emissions resulting from WBF degradation at the end-of-life also emerged as another important contributor to environmental impact. Amongst the diverse ‗end-of-life' scenarios examined, AD and home composting were suggested to be the optimum choices for WBF waste treatment. This research discusses two N 2 O modelling approaches and presents a method to expand the system boundary by integrating the process-oriented model DNDC for field emissions into the LCA. Sensitivity analysis suggests that the environmental profiles of agricultural products are influenced substantially by the system boundary definition. LCA of Light-weight Eco-compositesAbstract 4 Furthermore, it suggests that the ‗general rule' in LCA practice by applying an empirical model or a default emission factor (EF) could deliver unreliable LCA findings.This study also evaluated the sensitivity of the LCA results to methodology and data variations and quantified the uncertainties in the LCA outcomes arising from uncertainty in the inventory and data variability. This has led to an increase in confidence in the LCA findings. At the same time it indicates the areas where improvements in data or methods are needed in order for robust conclusions to be drawn and unbiased information to be delivered e.g. the methodological rigidity of characterization models, the IPCC Tier 1 EF uncertainty range. LCA of Light-weight Eco-compositesAcknowledgements 5

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confidence: 98%

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confidence: 99%

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Life Cycle Assessment (LCA) of Light-Weight Eco-composites

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2012

Springer Theses

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“…À medida que os estoques de C são exauridos, a temperatura decresce gradualmente, até igualar-se à temperatura ambiente (VINNERAS & JONSSON, 2002). Nessa fase surgem novamente as comunidades mesófilas, que irão atuar na humificação do composto por meio da degradação de compostos mais resistentes, como a hemicelulose e a lignina (TUOMELA et al, 2000).…”

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Compostagem versus vermicompostagem: comparação das técnicas utilizando resíduos vegetais, esterco bovino e serragem

Cotta

Carvalho

Brum

et al. 2015

Eng. Sanit. Ambient.

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RESUMONeste trabalho, o enfoque foi a integração dos processos de compostagem e vermicompostagem para otimizar a reciclagem de resíduos sólidos.Cada tratamento recebeu um volume total de 40 cm 3 de resíduos.Os experimentos foram realizados em duas etapas: a primeira constituiu-se na pré-compostagem de resíduos sólidos vegetais (RV), com adição de esterco ou serragem de madeira. A irrigação e o revestimento das leiras nessa etapa foram realizados depois de 7, 14, 21 e 28 dias do início, e a temperatura foi monitorada. Na segunda etapa foram testados os tratamentos obtidos da primeira etapa com e sem minhocas.Os experimentos foram colocados em caixas de compensado de 60 cm 3 de dimensão, e os tratamentos sem minhocas foram dispostos em leiras e revolvidos a cada 7 dias. Nos tratamentos com minhocas foram adicionadas de 200 a 400 minhocas adultas da espécie Eisenia foetida. O processo foi acompanhado por meio de análises de C/N, variação de temperatura, grau de umidade, pH, matéria orgânica (MO) total, carbono total, teor de ácidos húmicos, nitrogênio total, fósforo e potássio. Na primeira etapa do processo, que constitui a termoestabilização dos resíduos nos diferentes tratamentos, a temperatura máxima atingida foi de 35, 53 e 51°C no 14° dia, respectivamente nos tratamentos RV, resíduos vegetais+serragem de madeira (RVM) e resíduos vegetais+esterco (RVE). Na segunda etapa, após 56 dias, a massa em degradação atingiu a temperatura ambiente, sendo, então, deixada para maturar por 98 dias. O pH final ficou na faixa de 6,74 a 8,90. A relação C/N inicial dos tratamentos RVE e RVM foi 34/1 e 184/1, e chegou a 17/1 e 34/1 após 98 dias utilizando a vermicompostagem. ABSTRACTIn this work, the focus was for the integration of composting and vermicomposting processes to optimize the recycling of solid wastes. Each treatment received a total volume of 40 cm 3 of waste.The experiments were conducted in two stages: the first consisted in pre-composting solid waste vegetables with addition of manure or sawdust. The irrigation and coating of windrows at this stage were conducted after 7, 14, 21 and 28 days from the beginning, and the temperature was monitored. In the second stage, the treatments obtained from the first stage were tested with and without earthworms.The experiments were placed in wooden boxes of 60 cm³ in size, and the treatments without earthworms were placed in windrows and scrambled every 7 days. In the treatments with earthworms were added 200-400 adult worms, Eisenia foetida. During the process the C/N ratio, temperature variation, moisture content, pH, total organic matter, total carbon, humic acid content, total nitrogen, phosphorus and potassium were evaluated. In the first stage of the process, which is the thermal stabilization of residues in the different treatments, the maximum temperature reached 35, 53 and 51°C on the 14 th day, respectively in RV, RVM e RVE treatments. In the second stage, after 56 days, the ambient temperature was reached; the organic wastes were then laid to reach full maturity f...

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Compost: Biodegradation of Toxic Organic Compounds

Dosoretz

Mandelbaum²,

Hadar

2003

Encyclopedia of Environmental Microbiology

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Principles of Composting Application of Compost for the Detoxification of Toxic Organic Compounds Degradation of Petroleum Products Degradation of Halogenated Compounds Degradation of Pesticides Degradation of Explosives The Fate of Organic Pollutants During Composting

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Biodegradation of lignin in a compost environment: a review

Cited by 1,033 publications

References 84 publications

Life Cycle Assessment (LCA) of Light-Weight Eco-composites

Life Cycle Assessment (LCA) of Light-Weight Eco-composites

Compostagem versus vermicompostagem: comparação das técnicas utilizando resíduos vegetais, esterco bovino e serragem

Compost: Biodegradation of Toxic Organic Compounds

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