Maturity and stability parameters of composts prepared with a wide range of organic wastes

Bernai, M.P.; Paredes, C.; Sánchez-Monedero, Miguel Á.; Cegarra, J.

doi:10.1016/s0960-8524(97)00084-9

Cited by 697 publications

(397 citation statements)

References 15 publications

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“…This result differs from the range presented by , who found 15-608 mg kg -1 of N-NH 4 + in wastes of different origins. Although high, the amount of N-NH 4 + in chicken manure was about eight times lower in this study than reported by Bernal et al (1998) for compost. In chicken manure, N loss due to volatilization during organic matter decomposition is common.…”

Section: Resultscontrasting

confidence: 82%

“…The characteristics of plant residues vary depending on the plant species, plant tissues, and soil chemical and physical properties, but are generally nutrient-poor and have lower EC than animal or municipal wastes (Abad et al, 2002;Garcia-Gomez et al, 2002;Benito et al, 2003;Benito et al, 2005;Benito et al, 2006;Domeño et al, 2009;Bernal et al 1998;Ingelmo et al, 1998;Hernández-Apaolaza et al, 2005;Bardhan et al, 2008;Ostos et al, 2008). Benito et al (2006) concluded that composts obtained from pruning must be mixed with other ingredients rich in nutrients, to compensate the low-nutrient level.…”

Section: Introductionmentioning

confidence: 99%

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Chemical and physical properties of organic residues

Higashikawa

Silva²,

Bettiol

2010

Rev. Bras. Ciênc. Solo

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SUMMARYDue to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH 4 + , N-N0 3 -, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients. The EC values of these residues were also the highest (0.08 -40.6 dS m -1 ). Peat and sewage sludge had the highest bulky density. Sodium contents varied from 0 to 4.75 g kg -1 , with the highest levels in chicken manure, cattle manure and sewage sludge. Great care must be taken when establishing proportions of organic residues in the production of substrates with coffee husk, cattle or chicken manure or sewage sludge in the calculation of the applied fertilizer quantity in crop fertilization programs.Index terms: substrate, organic residue, soil contamination, residue disposal.( de: N, N-amônio, Nnitrato, P, S, K, Ca, Zn, Cu e B; foram, também, os

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Section: Resultscontrasting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Chemical and physical properties of organic residues

Higashikawa

Silva²,

Bettiol

2010

Rev. Bras. Ciênc. Solo

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“…Meanwhile, the characteristics for pine chip is pH with 5.3, EC value with 0.20 dS m-1, OM value with 86.6%, TOC value with 53.9% and TN 0.28%. The result shows that the pH value is around 4.7 to 6.7, the TN value increased from 2.36% to 4.07% and the C/N ratio also decreasing from the beginning of the process until day 126 with the value of 9.6 which is showed an acceptable degree of maturation [26]. Therefore, the mixture of bagasse, pine chip and banana waste as feedstock material in composting is also proven to be good.…”

Section: Agricultural Wastementioning

confidence: 92%

An Overview of Composting Based on Variable Feedstock Material

Jamaludin

Azhari

2016

MATEC Web of Conferences

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Abstract.Composting is a biological treatment method that provides a potential sustainable way to convert food waste into organic compost. In composting, the feedstock material is an important item to ensure the success of the composting process. This paper reviewed the process of composting based on implementation different types of feedstock, namely: 1) animal waste such as cow dung, poultry litter, swine manure and chicken manure; and 2) agricultural waste such as sawdust, rice straw, bran, bagasse, banana waste and pine chip. The result for poultry litter, cow manure, swine manure, sawdust and rice straw has C/N ratio lower than 20 at final composting process which is considered as satisfactory level for compost maturity. As a conclusion, the selection of the feedstock material is based on the characteristics of the material itself and the selection of materials is important for the quality of compost.

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“…Mineralization of the organic matter coupled with increase in nitrogen content resulting from the loss of dry weight led to the decreasing C/N ratios (Bernal et al, 1998;Sellami et al, 2008). C/N ratios was a decreasing tendency in all treatments throughout the whole composting period due to the changes of TC and TN contents (Fig.…”

Section: Resultsmentioning

confidence: 94%

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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Maturity and stability parameters of composts prepared with a wide range of organic wastes

Cited by 697 publications

References 15 publications

Chemical and physical properties of organic residues

Chemical and physical properties of organic residues

An Overview of Composting Based on Variable Feedstock Material

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

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