Effect of carbon source on compost nitrogen and carbon losses

Barrington, Suzelle; Choinière, Denis; Trigui, Maher; Knight, W. G.

doi:10.1016/s0960-8524(01)00229-2

Cited by 264 publications

(101 citation statements)

References 7 publications

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“…In addition to N gaseous, N losses also include leachate which was discussed in previous studies. Barrington et al, (2002) reviewed studies on total N losses (including leachate) from composting of manure found that total N loss ranged between 16% and 72%, which was agreed with their own investigation. Amongst these total N losses, generally only small proportion was observed as leachate while gaseous loss dominated.…”

Section: General Discussion and Conclusion 417supporting

confidence: 84%

“…As reported by Martins and Dewes (1992), only 9.6%-19.6% of initial N was lost as leachate where NH 4 + -N accounted for 77%-98%; if under the optimal moisture content, the leachate N loss could reach as low as 1% of total N loss (Barrington et al, 2002).…”

Section: General Discussion and Conclusion 417mentioning

confidence: 53%

“…The same as N leachate, Barrington et al, (2002) concluded a negligible proportion of C was lost via seepage(less than 1% of C loss). Therefore, in LCA model, an optimal condition minimizing leachate was assumed, only C/N gaseous losses were taken into account.…”

Section: General Discussion and Conclusion 417mentioning

confidence: 97%

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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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Section: General Discussion and Conclusion 417supporting

confidence: 84%

Section: General Discussion and Conclusion 417mentioning

confidence: 53%

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

Guo¹

2012

Springer Theses

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“…Various research have been conducted to stabilize swine manure by using environmentally feasible methods. In that sense, composting has been suggested as a relatively simple, cost-effective, and environmentally friendly technology that could stabilize animal manure (Barrington et al, 2002;Epstein, 1997). However, high moisture content in swine manure could be restriction for composting, bulking agents in composting of swine manure might be required for effective aerobic biodegradation in composting process under aerobic condition.…”

Section: Introductionmentioning

confidence: 99%

“…Bulking agents for composting process have used straw, sawdust, and other municipal solid wastes (Barrington et al, 2002;Imbeah, 1998;Tiquia and Tam, 1998). Among them, sawdust has suggested an appropriate bulking agent to control the capability of absorbing moisture and pHs for the composting of swine manure and to retain high ammonia and maintain porosity (Bhamidimarri and Pandey, 1996;Imbeah, 1998).…”

Section: Introductionmentioning

confidence: 99%

Effects of Coal Fly Ash as a Bulking Agent under Co-composting with Swine Manure and Saw Dust

Lee¹,

Park²,

Kim³

et al. 2014

Korean Journal of Soil Science and Fertilizer

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The coal fly ash (CFA) may be utilized as an extender for organic waste composting at the same time fully expected to solve all industrial waste disposal and sawdust tribe. The main objective in this study was to evaluate the effect of CFA addition as a bulking agent for swine manure composting. To determine the suitable addition rate of CFA as a bulking agent, 0, 10, 20 and 30% of saw dust were mixed with 30, 20, 10 and 0% of coal fly ash, respectively. Compost quality for swine manure composting was to evaluate temperature, pH, C/N ratio, and phytotoxicity as germination index. Stability of compost increased with increasing levels of CFA as bulking agent during swine manure composting due to the high alkaline materials including CFA. C to N ratio in treatment added CFA was higher than that of the control without CFA. After finishing composting, germination index of lettuce and cabbage in swine manure compost added 10% of CFA was similar to the control, all the heavy metal contents were far below the stipulated standard for organic farming. These results indicated tahr coal fly ash as bulking agents might be alternative materials to save saw dust and apply industrial products for swine manure composting.

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Co‐composting of Municipal Solid Waste with Sawdust: Improving Compost Quality

Javad

Younesi

Ghasempoury

2012

CLEAN Soil Air Water

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The aim of present study was to improve compost quality as well as to achieve an optimum C/N ratio in compost, reduction in heavy metal content and increased water‐holding capacity of composting piles in arid areas. Four windrow compost piles were prepared by mixing sawdust at various dosages with municipal solid waste (MSW). The sawdust was mixed with MSW at 0% (MSW0), 16% (MSW16), 32% (MSW32), and 70% (MSW70) on dry weight basis. The compost piles were monitored daily by recording the temperature, while, weekly measurement was done on C/N ratio, moisture, pH, and electrical conductivity (EC). The addition of 16% sawdust increased the initial C/N to the optimum level and decreased N loss during the composting process. The MSW16 and MSW32 exhibited better temperature dynamics and their composting period seemed to be shorter than that of MSW0 and MSW70. Moreover, addition of sawdust caused lowering of moisture loss from the composting piles. Sawdust admixtures also produced lowering of pH and EC values and led to lower heavy metal content in final products. The quality of the final compost makes it possible to propose the use of this experimental procedure for building up a novel mass reduction of the initial composted waste mixtures.

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Effect of carbon source on compost nitrogen and carbon losses

Cited by 264 publications

References 7 publications

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

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

Effects of Coal Fly Ash as a Bulking Agent under Co-composting with Swine Manure and Saw Dust

Co‐composting of Municipal Solid Waste with Sawdust: Improving Compost Quality

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