Co-composting rice hulls and/or sawdust with poultry manure in NE Argentina

Leconte, M.; Mazzarino, Marı́a Julia; Satti, Patricia; Iglesias, María C.; Laos, F.

doi:10.1016/j.wasman.2009.04.006

Cited by 58 publications

(36 citation statements)

References 19 publications

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“…The emissions of ammonia from composting waste used as organic fertilizer were estimated using a default nitrogen content of 1% and a total ammonia nitrate (TAN) fraction of 30% of total nitrogen (Barrington et al 2002;Agrammon Group 2009;Leconte et al 2009). The emissions from composted organic materials were adopted from Agrammon Group (2009) and used for compost and other organics; with 0.24 kg NH 3 -N per tonne of compost, or 2.4% of total amount of N applied as compost and other organic material.…”

Section: Ammonia (Nh3) To Airmentioning

confidence: 99%

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Henriksson

Rico

Zhang

et al. 2015

Environ. Sci. Technol.

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We investigated aquaculture production of Asian tiger shrimp, whiteleg shrimp, giant river prawn, tilapia, and pangasius catfish in Bangladesh, China, Thailand, and Vietnam by using life cycle assessments (LCAs), with the purpose of evaluating the comparative eco-efficiency of producing different aquatic food products. Our starting hypothesis was that different production systems are associated with significantly different environmental impacts, as the production of these aquatic species differs in intensity and management practices. In order to test this hypothesis, we estimated each system's global warming, eutrophication, and freshwater ecotoxicity impacts. The contribution to these impacts and the overall dispersions relative to results were propagated by Monte Carlo simulations and dependent sampling. Paired testing showed significant (p < 0.05) differences between the median impacts of most production systems in the intraspecies comparisons, even after a Bonferroni correction. For the full distributions instead of only the median, only for Asian tiger shrimp did more than 95% of the propagated Monte Carlo results favor certain farming systems. The major environmental hot-spots driving the differences in environmental performance among systems were fishmeal from mixed fisheries for global warming, pond runoff and sediment discards for eutrophication, and agricultural pesticides, metals, benzalkonium chloride, and other chlorine-releasing compounds for freshwater ecotoxicity. The Asian aquaculture industry should therefore strive toward farming systems relying upon pelleted species-specific feeds, where the fishmeal inclusion is limited and sourced sustainably. Also, excessive nutrients should be recycled in integrated organic agriculture together with efficient aeration solutions powered by renewable energy sources.

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Section: Ammonia (Nh3) To Airmentioning

confidence: 99%

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Henriksson

Rico

Zhang

et al. 2015

Environ. Sci. Technol.

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“…Saw dust is one of the byproducts of saw milling, which is a major economic activity practiced in countries with large forests resources (Leconte et al, 2009). It is estimated that between 800,000 m 3 and 1.3 million m 3 of sawdust is produced annually in rural sawmills allover Kenya (Onchieku et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of Sawdust, Forest Soil and Cow Dung Mixtures on Growth Characteristics of Blue Gum (<i>Eucalyptus saligna</i>) Seedlings in South Kinangop Forest, Nyandarua, Kenya

Ashiono¹,

Kamiri²,

Kinyanjui³

2017

OJF

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Forestation programs, in Kenya have been hindered by, among others, high cost of tree seedling production and longtime seedlings stay in the nursery. This has been attributed to poor quality of forest soil and unavailability of alternative growth media. Study was carried out in South Kinangop forest station to evaluate the potential of mixing sawdust and cow dung with forest soil to form a nutrient rich growth media. Using forest soil; sawdust, cow dung and mixture of these components, this study sought to determine growth characteristics of Eucalyptus saligna seedlings under different conditions available in the nursery. The experiment was laid out in a Completely Randomized Design (CRD) with six treatments comprising of Saw dust alone (Tr 1), Forest soil alone (Tr 2); Sawdust: Cow dung mixture in the ratio of 1:1 (Tr 3); Forest soil to Sawdust-Cow dung mixture (1:1) in ratio of 1:1 by weight (Tr 4); Forest soil to Sawdust-Cow dung mixture (1:1) in ratio of 1:2 by weight (Tr 5) and Forest soil to Sawdust-Cow dung (1:1) in ratio of 1:3 by weight (Tr 6). Treatments were replicated three times and an experimental unit consisted of 110 seedlings of which 15 were tagged for height and root collar diameter measurement. The remaining 95 were used for biomass determination by destructive sampling. The results showed that Sawdust: Cow dung mixtures (Tr 3) had the highest measurements for height, root collar diameter and biomass at week 20 when compared to the rest of growth mixtures. Height measurements were significantly high (13.81 cm) for the Sawdust: Cow dung mixtures while the variation in root collar diameter and biomass were not significantly different among the treatments. Sawdust alone did not favor seedling growth and recorded the lowest measurements in height, root collar diameter and biomass. Nutrient release from the growth media during the experimental period was equally high for the Saw dust: Cow dung mixture (Tr 3) which was ideal media for raising tree seedlings. The findings of this study illustrate the usability of sawdust and cow dung in enhancing the productivity of tree nurseries and shortening the time taken for raising seedlings in the tree nursery. The findings also propose a safe disposal of saw dust that poses as an environmental waste.

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“…Due to its high lignin and cellulose content, 24 and 57%, respectively (LECONTE et al, 2009), wood shavings particularly experienced mechanical fragmentation during turning, since conditions under which experiment was conducted, such as short composting time, low substrate humidity and absence of temperature thermophilic phase, do not provide adequate conditions for decomposition.…”

Section: Resultsmentioning

confidence: 99%

Poultry carcass decomposition and physicochemical analysis of compounds in different Composter types

Cestonaro¹,

Abreu

et al. 2014

Eng. Agríc.

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This study aimed to assess five composter types in poultry carcasses decomposition and to perform a physicochemical analysis of the compounds obtained. Composter types used were six-hole brick, wood, screen, windrow with three PVC pipes with six holes and windrow with three PVC pipes with 10 holes. Composting was followed by four periods using wood shaving like substrate with one bird carcass placed in each composter. Pile turning was performed every 10 days and temperature in each layer was measured on 1

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Co-composting rice hulls and/or sawdust with poultry manure in NE Argentina

Cited by 58 publications

References 19 publications

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Effects of Sawdust, Forest Soil and Cow Dung Mixtures on Growth Characteristics of Blue Gum (<i>Eucalyptus saligna</i>) Seedlings in South Kinangop Forest, Nyandarua, Kenya

Poultry carcass decomposition and physicochemical analysis of compounds in different Composter types

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Co-composting rice hulls and/or sawdust with poultry manure in NE Argentina

Cited by 58 publications

References 19 publications

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Comparison of Asian Aquaculture Products by Use of Statistically Supported Life Cycle Assessment

Effects of Sawdust, Forest Soil and Cow Dung Mixtures on Growth Characteristics of Blue Gum (&lt;i&gt;Eucalyptus saligna&lt;/i&gt;) Seedlings in South Kinangop Forest, Nyandarua, Kenya

Poultry carcass decomposition and physicochemical analysis of compounds in different Composter types

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Effects of Sawdust, Forest Soil and Cow Dung Mixtures on Growth Characteristics of Blue Gum (<i>Eucalyptus saligna</i>) Seedlings in South Kinangop Forest, Nyandarua, Kenya